Adhesive composition and method of forming same - Patents.com

Abstract

To provide a pressure-sensitive adhesive composition that maintains high entire performance to thermoplastic olefin even after exposure for a long years.SOLUTION: An adhesive composition can contain: at least approximately 2 wt.% to 49 wt.% or less of (meth)acrylic polymer component A for the total weight of the adhesive composition; at least approximately 51 wt.% of (meth)acrylic polymer component B for the total weight of the adhesive composition; and at least approximately 0.1 wt.% to approximately 30 wt.% or less of a tackifier component for the total weight of the adhesive composition. The (meth)acrylic polymer component A can be acid, and can have glass-transition temperature (Tg) of at least approximately 40°C. The (meth)acrylic polymer component B can be basic, and can have a glass-transition temperature (Tg) of approximately 20°C or less.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present disclosure relates to adhesive compositions and methods of forming the same. The present disclosure further relates to adhesive compositions. The present invention relates to a foam tape comprising the composition and a method for forming the same. [Background technology]

[0002] Pressure-sensitive adhesives are used in many industrial and consumer markets to bond a variety of substrates. Depending on the particular application, the pressure sensitive adhesive may be designed as a single layer or multiple layers. The substrates may be of similar or very different nature. The substrate is particularly suitable for use with polypropylene and polypropylene / ethylene propylene as the substrate on one side. If the material is made of a thermoplastic olefin containing diene terpolymer, installation is more difficult. Typically, pressure sensitive adhesives designed for these thermoplastic materials tend to be too stiff. These problems are due to the fact that pressure-sensitive adhesives tend to lack high adhesion and high cohesion. In applications where the product must have both durability and long-term exposure to the elements, Therefore, even after many years of exposure, the overall high There is a strong need to develop pressure sensitive adhesive compositions that maintain their intended performance. Summary of the Invention

[0003] According to a first embodiment, the adhesive composition comprises, based on the total weight of the adhesive composition, at least about 2% by weight and 49% by weight or less of a (meth)acrylic polymer component A and an adhesive composition At least about 51% by weight of a (meth)acrylic polymer component B, based on the total weight of the component B, and an adhesive At least about 0.1% by weight and not more than about 30% by weight of the adhesive composition The (meth)acrylic polymer component A may be acidic and may contain at least Both of the (meth)acrylic polymer components may have a glass transition temperature (Tg) of about 40° C. may be basic and may have a glass transition temperature (Tg) of about 20°C or less.

[0004] According to another embodiment, the adhesive composition comprises at least about 2% by weight of the total adhesive composition. % by weight and 49% by weight or less of (meth)acrylic polymer component A and the total weight of the adhesive composition at least about 51% by weight of a (meth)acrylic polymer component B; and an adhesive At least about 0.1 wt. % and no more than about 30 wt. % tackifying agent, based on the total weight of the composition The (meth)acrylic polymer component A may further comprise a reaction agent component for the polymerizable material. The reaction product of the polymerizable material may be a product of (meth)acrylic polymer component A and (meth)acrylic polymer component B. at least about 40% by weight and not more than about 99% by weight of monomer component a1, at least about 0.1% by weight and about 1% by weight of the meth)acrylic polymer component A, based on the total weight of the meth)acrylic polymer component A; and 20% by weight or less of a monomer component a2. The monomer component a2 may be a saturated functional monomer having an acidic group and an ethylenically unsaturated group. The (meth)acrylic polymer component B may be an acidic monomer having a basic property. do.

[0005] According to yet another embodiment, the adhesive composition comprises, based on the total weight of the adhesive composition, at least and about 2% by weight and 49% by weight or less of (meth)acrylic polymer component A and adhesive composition At least about 51% by weight of a (meth)acrylic polymer component B, based on the total weight of the article; At least about 0.1 wt. % and not more than about 30 wt. % of the adhesive composition The (meth)acrylic polymer component A may further comprise a polymerizable material. and the reaction product of the polymerizable material can be a reaction product of (meth)acrylic polymer component A at least about 40% by weight and not more than about 99% by weight of monomer component a1, based on the total weight of and at least about 0.1 wt. % based on the total weight of the (meth)acrylic polymer component A. and about 20% by weight or less of monomer component a2. The monomer component a2 may be an ethylenically unsaturated functional monomer, and the monomer component a2 may be an ethylenically unsaturated functional monomer having an acidic group and an ethylenically unsaturated functional group. The (meth)acrylic polymer component B may further comprise a polymer having an acidic group. The reaction product of the polymerizable material may be a (meth)acrylic polymer. At least about 40% by weight and not more than about 99% by weight of monomers, based on the total weight of component B component b1 and (meth)acrylic polymer component B, and at least about 1 weight percent % and about 60% by weight or less of monomer component b2. 1 to C24 acrylic ester, and the monomer component b2 is a hydroxyl-containing (meth) Acrylic monomers, nitrogen-containing monomers with primary, secondary, or tertiary amino groups, or is an ethylene selected from nitrogen-containing monomers having a primary, secondary, or tertiary amide group; The monomer may be a divalently unsaturated functional monomer.

[0006] According to yet another aspect, a method of forming an adhesive composition includes providing a pre-adhesive mixture. mixing a pre-adhesive mixture; and polymerizing the pre-adhesive mixture to form an adhesive composition. The pre-adhesive mixture may comprise a pre-adhesive (meth)acrylic polymer. Polymer component A, pre-adhesive (meth)acrylic polymer component B, pre-adhesive tackifier component The pre-adhesive (meth)acrylic polymer component A may be provided in the pre-adhesive mixture. The pre-adhesive (meth)acrylic polymer component B can be fully polymerized before being applied to the polymer. It may be unpolymerized before being applied to the adhesive mixture.

[0007] According to yet another aspect, the single layer foam tape includes hollow microspheres within the adhesive composition. The adhesive composition may comprise a foam core containing at least and about 2% by weight and 49% by weight or less of (meth)acrylic polymer component A and adhesive composition At least about 51% by weight of a (meth)acrylic polymer component B, based on the total weight of the article; At least about 0.1 wt. % and not more than about 30 wt. % of the adhesive composition The (meth)acrylic polymer component A may be acidic and may contain a small amount of a tackifier component. The (meth)acrylic polymer composition may have a glass transition temperature (Tg) of at least about 40°C. Part B may be basic and may have a glass transition temperature (Tg) of about 20° C. or less.

[0008] According to yet another aspect, the single layer foam tape includes hollow microspheres within the adhesive composition. The adhesive composition may comprise a foam core containing at least and about 2% by weight and 49% by weight or less of (meth)acrylic polymer component A and adhesive composition At least about 51% by weight of a (meth)acrylic polymer component B, based on the total weight of the article; At least about 0.1 wt. % and not more than about 30 wt. % of the adhesive composition The (meth)acrylic polymer component A may further comprise a polymerizable material. and the reaction product of the polymerizable material can be a reaction product of (meth)acrylic polymer component A at least about 40% by weight and not more than about 99% by weight of monomer component a1, based on the total weight of and at least about 0.1 wt. % based on the total weight of the (meth)acrylic polymer component A. and about 20% by weight or less of monomer component a2. The monomer component a2 may be an ethylenically unsaturated functional monomer, and the monomer component a2 may be an ethylenically unsaturated functional monomer having an acidic group and an ethylenically unsaturated functional group. The (meth)acrylic polymer component B may be an acidic monomer having a basic group. could be.

[0009] According to another aspect, the single layer foam tape comprises a foam containing hollow microspheres in an adhesive composition. The adhesive composition may comprise at least about 2% by weight of the total adhesive composition. % by weight and 49% by weight or less of (meth)acrylic polymer component A and the total weight of the adhesive composition at least about 51% by weight of a (meth)acrylic polymer component B; and an adhesive At least about 0.1 wt. % and no more than about 30 wt. % tackifying agent, based on the total weight of the composition The (meth)acrylic polymer component A may further comprise a reaction agent component for the polymerizable material. The reaction product of the polymerizable material may be a product of (meth)acrylic polymer component A and (meth)acrylic polymer component B. at least about 40% by weight and not more than about 99% by weight of monomer component a1, at least about 0.1% by weight and about 1% by weight of the meth)acrylic polymer component A, based on the total weight of the meth)acrylic polymer component A; and 20% by weight or less of a monomer component a2. The monomer component a2 may be a saturated functional monomer having an acidic group and an ethylenically unsaturated group. The (meth)acrylic polymer component B may further comprise a polymerizable material. The reaction product of the polymerizable material may be a reaction product of a (meth)acrylic polymer component. at least about 40% by weight and not more than about 99% by weight of monomer component b, based on the total weight of B; 1 and at least about 1% by weight based on the total weight of the (meth)acrylic polymer component B, and about 60% by weight or less of a monomer component b2. The monomer component b1 may comprise C1 to C 24 acrylic ester, and the monomer component b2 may be a hydroxyl-containing (meth)acrylic ester. a nitrogen-containing monomer having a primary, secondary, or tertiary amino group, or a primary an ethylenically unsaturated alkyl group selected from nitrogen-containing monomers having a secondary or tertiary amide group; The monomer may be a monofunctional monomer.

[0010] According to yet another aspect, the foam tape includes a foam core and a first The foam core may include a first adhesive layer covering the surface. The first adhesive layer may include a first adhesive composition. is at least about 2 wt. % and not more than 49 wt. % based on the total weight of the first adhesive composition relative to the total weight of the first (meth)acrylic polymer component A and the first adhesive composition, At least about 51% by weight of a first (meth)acrylic polymer component B and a first adhesive composition At least about 0.1 wt. % and not more than about 30 wt. % of the first adhesive, based on the total weight of the composition. The first (meth)acrylic polymer component A may be acidic. The first (meth)acrylic resin may have a glass transition temperature (Tg) of at least about 40°C. Polymer component B may be basic and may have a glass transition temperature (Tg) of about 20° C. or less. .

[0011] According to yet another aspect, the foam tape includes a foam core and a first The foam core may include a first adhesive layer covering the surface. The first adhesive layer may include a first adhesive composition. is at least about 2 wt. % and not more than 49 wt. % based on the total weight of the first adhesive composition relative to the total weight of the first (meth)acrylic polymer component A and the first adhesive composition, At least about 51% by weight of a first (meth)acrylic polymer component B and a first adhesive composition At least about 0.1 wt. % and not more than about 30 wt. % of the first adhesive, based on the total weight of the composition. The first (meth)acrylic polymer component A may further comprise a polymerizable The reaction product of the polymerizable material may be a reaction product of a first (meth)acrylic polymer. At least about 40% by weight and not more than about 99% by weight of the first component A, based on the total weight of the first component B. A small amount of the monomer component a1 and the first (meth)acrylic polymer component A is added to the total weight of the monomer component a1 and the first (meth)acrylic polymer component A. and at least about 0.1 wt. % and up to about 20 wt. % of a first monomer component a2. The first monomer component a1 can be an ethylenically unsaturated functional monomer, and the first monomer Component a2 may be an acidic monomer having an acidic group and an ethylenically unsaturated group. The (meth)acrylic polymer component B may be basic.

[0012] According to another embodiment, the foam tape includes a foam core and a first surface of the foam core. and a first adhesive layer covering the foam core. The foam core may include hollow microspheres within a foam material. The first adhesive layer may include a first adhesive composition. at least about 2% by weight and no more than 49% by weight of the first adhesive composition, based on the total weight of the first adhesive composition; the (meth)acrylic polymer component A and the first adhesive composition, The first (meth)acrylic polymer component B is about 51% by weight of the first adhesive composition. at least about 0.1 wt. % and no more than about 30 wt. % of a first tackifier, based on the total weight; The first (meth)acrylic polymer component A may further comprise a polymerizable material The reaction product of the polymerizable material may be a reaction product of the first (meth)acrylic polymer component. At least about 40% by weight and not more than about 99% by weight of the first monomer, based on the total weight of component A - at least relative to the total weight of component a1 and the first (meth)acrylic polymer component A and about 0.1% by weight and up to about 20% by weight of a first monomer component a2. The monomer component a1 may be an ethylenically unsaturated functional monomer, and the first monomer component a2 may be an acidic monomer having an acidic group and an ethylenically unsaturated group. t) The acrylic polymer component B may further be a reaction product of a polymerizable material, The reaction product is at least and about 40% by weight and about 99% by weight or less of the first monomer component b1 and the first (meth)amic acid. At least about 1% by weight and at least about 60% by weight based on the total weight of the acrylic polymer component B The first monomer component b1 may comprise a C1 to C24 The first monomer component b2 may be a hydroxyl-containing (meth)acrylic ester. a methyl group-containing monomer, a nitrogen-containing monomer having a primary, secondary, or tertiary amino group, or an ethylenically unsaturated fatty acid selected from nitrogen-containing monomers having a primary, secondary, or tertiary amide group; It may be a saturated functional monomer. [Brief explanation of the drawings]

[0013] Embodiments are illustrated by way of example and not limitation in the accompanying figures. [Figure 1] 1 includes diagrams illustrating methods of forming adhesive compositions according to embodiments described herein. [Figure 2] 1 includes diagrams illustrating the configuration of a single layer foam tape formed in accordance with embodiments described herein. [Figure 3] 1 includes diagrams illustrating the configuration of a foam tape having a single adhesive layer formed in accordance with embodiments described herein. [Figure 4] 1 includes a diagram illustrating the configuration of a foam tape having two adhesive layers formed in accordance with embodiments described herein.

[0014] Skilled artisans will appreciate that elements in the figures are illustrated for simplicity and clarity and are not necessarily drawn to scale. They understand that the picture is not exactly as it appears. DETAILED DESCRIPTION OF THE INVENTION

[0015] The following discussion will focus on specific implementations and embodiments of the present teachings. The detailed description is provided to help explain certain embodiments and is not intended to be limiting of the present disclosure and the accompanying drawings. and should not be construed as limitations on the scope or applicability of the present teachings. It is understood that these can be used based on the disclosure and teachings provided herein. It will be understood.

[0016] The terms "comprises," "comprising," and "including" "includes," "including," "has," "Having," or any other variation thereof, is intended to include a non-exclusive inclusion. For example, a method, article, or apparatus that includes a list of features does not necessarily qualify as a method, article, or apparatus that includes a list of features. Not limited to only the features expressly listed in such method, article, or apparatus. It may also include other features not present or inherent in the invention. Unless otherwise stated, "or" refers to an inclusive or and not an exclusive or. It does not refer to "or." For example, condition A or B is satisfied by one of the following: A is true (or exists) and B is false (or does not exist), A is false (or exists) and B is false (or does not exist) A is not true) and B is true (or exists), and A and B are both true (or exist). be.

[0017] Also, the use of "a" or "an" refers to any element and This is merely for convenience and to provide a general understanding of the scope of the invention. The specification intends to use one or more terms unless it is clear that another is meant. The singular form must be read to include at least one or also to include more than one, or vice versa. For example, where a single item is described herein, multiple items may be used in place of the single item. Similarly, where a plurality of articles is described herein, the plurality of articles may be used. A single article may be used in place of the items.

[0018] Embodiments described herein generally relate to adhesive compositions and methods for forming the adhesive compositions. More specifically, an adhesive composition having excellent adhesive properties and a method for forming the same. Regarding.

[0019] For illustrative purposes, FIG. 1 illustrates an adhesive composition formulation according to certain embodiments described herein. The adhesive composition forming method 100 includes a first step of providing a pre-adhesive mixture. a step 110 of mixing the pre-adhesive mixture; a second step 120 of mixing the pre-adhesive mixture; and a third step 130 of polymerizing the mixture to form the adhesive composition.

[0020] Referring to the first step 110, according to certain embodiments, the pre-adhesive mixture comprises: Pre-adhesive (meth)acrylic polyacrylates that are fully polymerized before being added to the pre-adhesive mixture. mer component A and pre-adhesive (meth)polymer that is not polymerized before being added to the pre-adhesive mixture. It may include an acrylic polymer component B and a pre-adhesive tackifier component.

[0021] According to certain embodiments, the pre-adhesive (meth)acrylic polymer component A is a high glass The transition temperature (Tg) of the pre-adhesive (meth)acrylic polymer component may be referred to as the component. According to an embodiment, the pre-adhesive (meth)acrylic polymer component A is a monomer containing Based on the glass transition temperature (Tg) of the copolymer and its weight percent, the Fox equation For example, the pre-adhesive (meth)acrylic polymer may have a specific Tg that is estimated by the formula: The polymer component A has a temperature of at least about 40°C, for example, at least about 45°C or at least about 50°C or at least about 55°C or at least about 60°C or at least about 65°C or at least about 70°C, or at least about 75°C, or even at least about 80°C. The glass transition temperature (Tg) of the pre-adhesive (meth)acrylic polymer component A may be It will be appreciated that the transition temperature can range between any of the above values. The glass transition temperature of the pre-adhesive (meth)acrylic polymer component A is one of the above values. It will further be appreciated that the value of .DELTA..times ...

[0022] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component A is For example, the pre-adhesive (meth)acrylic polymer component A may have a molecular weight of at least at least about 5,000 g / mol, e.g., at least about 7,500 g / mol or less At least about 10,000 g / mol or at least about 12,500 g / mol or less At least about 15,000 g / mol or at least about 17,500 g / mol or less At least about 20,000 g / mol or at least about 25,000 g / mol or less At least about 27,500 g / mol or at least about 30,000 g / mol or less At least about 32,500 g / mol or at least about 35,000 g / mol or less At least about 37,500 g / mol or at least about 40,000 g / mol or less molecules of about 42,500 g / mol or even at least about 45,000 g / mol According to yet another embodiment, the pre-adhesive (meth)acrylic polymer composition may comprise Moiety A is about 200,000 g / mol or less, for example, about 150,000 g / mol or less; Or even have a molecular weight of about 100,000 g / mol or less. The molecular weight of the acrylic polymer component A is between the minimum and maximum values ​​above. It will be understood that the range of the pre-adhesive (meth)acrylic polymer may be as follows: The molecular weight of component A can be any value between any of the minimum and maximum values ​​listed above. It will be further understood that

[0023] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component A is an acidic For purposes of the embodiments described herein, the term "acidic" refers to a polymer - may be defined as containing an acid functional monomer in component A. Thus, the total level of acidic monomers in component A is greater than about 1% by weight, or greater than about 3% by weight, Or it may be greater than 5% by weight, or greater than about 7% by weight.

[0024] According to certain embodiments, the pre-adhesive (meth)acrylic polymer component B is a low glass The transition temperature (Tg) of the pre-adhesive (meth)acrylic polymer component may be referred to as the component. According to an embodiment, the pre-adhesive (meth)acrylic polymer component B is a monomer containing Based on the glass transition temperature (Tg) of the copolymer and its weight percent, the Fox equation For example, the pre-adhesive (meth)acrylic polymer may have a specific Tg that is estimated by the formula: The polymer component B is maintained at a temperature of about 20° C. or less, for example, about 15° C. or less, or about 10° C. or less, or about It may have a glass transition temperature (Tg) of 5°C or less, or even about 0°C or less. The glass transition temperature of the methacrylic polymer component B is within the range of any of the above values. It will be understood that the pre-adhesive (meth)acrylic polymer component B may be It is further understood that the glass transition temperature can be any value between any of the above values. It will be.

[0025] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component B is For example, the pre-adhesive (meth)acrylic polymer component A may have a molecular weight of at least at least about 5,000 g / mol, e.g., at least about 7,500 g / mol or less At least about 10,000 g / mol or at least about 12,500 g / mol or less At least about 15,000 g / mol or at least about 17,500 g / mol or less At least about 20,000 g / mol or at least about 25,000 g / mol or less At least about 27,500 g / mol or at least about 30,000 g / mol or less At least about 32,500 g / mol or at least about 35,000 g / mol or less At least about 37,500 g / mol or at least about 40,000 g / mol or less molecules of about 42,500 g / mol or even at least about 45,000 g / mol According to yet another embodiment, the pre-adhesive (meth)acrylic polymer composition may comprise Moiety A is about 200,000 g / mol or less, for example, about 150,000 g / mol or less; Or even have a molecular weight of 100,000 g / mol or less. The molecular weight of the acrylic polymer component B is between the minimum and maximum values ​​above. It will be understood that the range of the pre-adhesive (meth)acrylic polymer composition may be within the range. The molecular weight of fraction B can be any value between any of the minimum and maximum values ​​listed above. It will be further understood that

[0026] According to yet another embodiment, the (meth)acrylic polymer component B may be basic. For purposes of the embodiments described herein, the term "basic" refers to a polymer component. In some embodiments, the compound may be defined as containing a basic monomer in B. The basic monomer is a nitrogen-containing monomer having a primary, secondary, or tertiary amino group. Alternatively, the basic monomer may be a nitrogen-containing monomer having a primary, secondary, or tertiary amide group. According to some embodiments, the total amount of basic monomers in component B may be 0.01 to 0.01. Typical levels are greater than about 1% by weight, or greater than about 3% by weight, or greater than 5% by weight, or greater than about 7% by weight. %, greater than about 9% by weight, or greater than about 11% by weight, or greater than about 13% by weight.

[0027] According to yet another embodiment, the pre-adhesive mixture contains a specific content of pre-adhesive (meta For example, the pre-adhesive (metal) in the pre-adhesive mixture may contain an acrylic polymer component A. p) The content of acrylic polymer component A is at least 100% by weight based on the total weight of the pre-adhesive mixture. At least about 2.0 wt. %, for example, at least about 2.5 wt. %, or at least about 3.0 wt. %. % by weight, or at least about 3.5% by weight, or at least about 4.0% by weight, or less At least about 4.5% by weight, or at least about 5.0% by weight, or at least about 5.5% by weight % by weight, or at least about 6.0%, or at least about 6.5%, or less at least about 7.0% by weight, or at least about 7.5% by weight, or at least about 8.5% by weight % by weight, or at least about 9.0% by weight, or at least about 9.5% by weight, or even According to yet another embodiment, the pre-adhesive mixture may comprise at least about 10.0% by weight of the pre-adhesive mixture. The content of the pre-adhesive (meth)acrylic polymer component A in the mixture is About 49.0% by weight or less, for example, about 47.0% by weight or less, or about 45.0% by weight or less, based on the total weight 0.0% by weight or less, or about 42.0% by weight or less, or about 40.0% by weight or less, or about 37.0% by weight or less, or about 35.0% by weight or less, or about 32.0% by weight or less, or is about 30.0% by weight or less, or about 27.0% by weight or less, or about 25.0% by weight or less, or about 22.0% by weight or less, or about 20.0% by weight or less, or about 17.0% by weight or less or less, or about 15.0% by weight or less, or even about 12.0% by weight or less. The content of pre-adhesive (meth)acrylic polymer component A in the adhesive mixture must be within the above minimum range. It will be understood that the range may be between any of the values ​​and maximum values. The content of the pre-adhesive (meth)acrylic polymer component A in the adhesive mixture is It will be understood that the value may be any value between any of the minimum and maximum values. .

[0028] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component A is It may include adhesive monomer component a1 and pre-adhesive monomer component a2.

[0029] According to a particular embodiment, the pre-adhesive monomer component a1 is an ethylenically unsaturated monomer According to yet another embodiment, the pre-adhesive monomer component a1 may be t-butyl Acrylate, methyl methacrylate, ethyl methacrylate, isopropyl methacrylate acrylate, n-butyl methacrylate, isobutyl methacrylate, s-butyl methacrylate t-butyl methacrylate, stearyl methacrylate, phenyl methacrylate, Cyclohexyl acrylate, cyclohexyl methacrylate, isobornyl acrylate , isobornyl methacrylate, benzyl methacrylate, 3,3,5 trimethylcyclo Hexyl acrylate, propyl methacrylate, adamantyl acrylate, adaman Dicyclopentanyl methacrylate, dicyclopentanyl acrylate, dicyclopentanyl methacrylate acrylate, norbornyl acrylate, styrene, α-methylstyrene, or mixtures thereof The compounds may include, but are not limited to:

[0030] According to yet another embodiment, the pre-adhesive monomer component a2 has an acid group and an ethylene group. According to yet another embodiment, the pre-adhesive may be an acidic monomer having a hydroxyl unsaturated group. Monomer component a2 may be an acid-containing (meth)acrylic monomer. According to the Protonic acid, citraconic acid, maleic acid, oleic acid, β-carboxyethyl (meth)acrylamide acrylate, 2-sulfoethyl methacrylate, styrene sulfonic acid, 2-acrylamide -2-methylpropanesulfonic acid, vinylphosphonic acid, or a mixture thereof. The monomers may include, but are not limited to, acidic monomers.

[0031] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component A is For example, the pre-adhesive (meth)acrylic monomer component a1 may contain The content of the pre-adhesive monomer component a1 in the vinyl polymer component A is At least about 40% by weight, for example, at least about 40% by weight of the total weight of the acrylic polymer component A or at least about 43% by weight, or at least about 45% by weight, or at least about 48% by weight, is at least about 50% by weight, or at least about 53% by weight, or at least about 55% by weight % by weight, or at least about 58% by weight, or at least about 63% by weight, or at least or at least about 65%, or at least about 68%, or at least about 70%, is at least about 73% by weight, or at least about 75% by weight, or at least about 78% by weight % by weight, or at least about 80% by weight, at least about 83% by weight, or at least about 85% by weight % by weight, or at least about 88% by weight, or even at least about 90% by weight According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component A contains The content of the adhesive monomer component a1 is the same as that of the pre-adhesive (meth)acrylic polymer component A. About 99% by weight or less, for example, about 98.5% by weight or less, or about 98% by weight or less, based on the total weight % or less, or about 97.5% by weight or less, or about 97.0% by weight or less, or about 96.5 % by weight, or about 96.0% by weight or less, or about 95.5% by weight or less, or about 95.0 The pre-adhesive monomer in the pre-adhesive (meth)acrylic polymer component A may be % by weight or less. The content of the monomer component a1 is within the range between any of the above minimum and maximum values. It will be understood that the pre-adhesive (meth)acrylic polymer component A may The content of the pre-adhesive monomer component a1 is within the above minimum and maximum values. It will further be understood that the value may be any value between.

[0032] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component A is For example, the pre-adhesive (meth)acrylic monomer component a2 may contain The content of the pre-adhesive monomer component a2 in the vinyl polymer component A is At least about 0.1% by weight, for example, at least about 0.1% by weight, based on the total weight of the acrylic polymer component A. At least about 0.5% by weight, or at least about 1.0% by weight, or at least about 1.5% by weight %, or at least about 2.0% by weight, or at least about 2.5% by weight, or less At least about 3.0 wt. %, or at least about 3.5 wt. %, or at least about 4.0 wt. % %, or at least about 4.5% by weight, or at least about 5.0% by weight, or less At least about 5.5% by weight, or at least about 6.0% by weight, or at least about 6.5% by weight %, or even at least about 7.0% by weight. Content of pre-adhesive monomer component a2 in pre-adhesive (meth)acrylic polymer component A is about 20.0% by weight based on the total weight of the pre-adhesive (meth)acrylic polymer component A. or less, for example, about 19.5% by weight or less, or about 19.0% by weight or less, or about 18.5 % by weight or less, or about 18.0% by weight or less, or about 17.5% by weight or less, or about 17 0.0% by weight or less, or about 16.5% by weight or less, or about 16.0% by weight or less, or about 15.5% by weight or less, or about 15.0% by weight or less, or about 14.5% by weight or less, is about 14.0% by weight or less, or about 13.5% by weight or less, or about 13.0% by weight or less; Alternatively, it may be about 12.5% ​​by weight or less, or about 12.0% by weight or less. p) The content of the pre-adhesive monomer component a2 in the acrylic polymer component A is the above minimum. It will be understood that the range may be between any of the values ​​and maximum values. The content of pre-adhesive monomer component a2 in adhesive (meth)acrylic polymer component A is It is further understood that , may be any value between any of the above minimum and maximum values. It will be understood.

[0033] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component A is According to certain embodiments, the adhesive monomer component a3 may further comprise a pre-adhesive monomer. -Component a3 is a pre-adhesive monomer component a1 and a pre-adhesive monomer component a2. may be different.

[0034] According to a particular embodiment, the pre-adhesive monomer component a3 is an ethylenically unsaturated monomer According to yet another embodiment, the pre-adhesive monomer component a3 may be a hydroxy an ethylenically unsaturated fatty acid selected from the group consisting of alkyl-containing (meth)acrylic acid esters and acrylamides; The copolymer may include a monofunctional monomer.

[0035] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component A is For example, the pre-adhesive (meth)acrylic monomer component a3 may contain The content of the pre-adhesive monomer component a3 in the vinyl polymer component A is At least about 0.1% by weight, for example, at least about 0.1% by weight, based on the total weight of the acrylic polymer component A. At least about 0.5% by weight, or at least about 1.0% by weight, or at least about 1.5% by weight %, or at least about 2.0% by weight, or at least about 2.5% by weight, or less At least about 3.0 wt. %, or at least about 3.5 wt. %, or at least about 4.0 wt. % %, or at least about 4.5% by weight, or at least about 5.0% by weight, or less At least about 5.5% by weight, or at least about 6.0% by weight, or at least about 6.5% by weight %, or even at least about 7.0% by weight. Content of pre-adhesive monomer component a3 in pre-adhesive (meth)acrylic polymer component A is about 60% by weight or less based on the total weight of the pre-adhesive (meth)acrylic polymer component A , for example, about 55% by weight or less, or about 50% by weight or less, or about 45% by weight or less, is about 40% by weight or less, or about 35% by weight or less, or about 30% by weight or less, or about 25% by weight or less % by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less or less, or about 13% by weight or less, or about 10% by weight or less. The content of the pre-adhesive monomer component a3 in the acrylic polymer component A is the minimum value above. It will be understood that the range may be anywhere between a lower limit and a higher limit. The content of pre-adhesive monomer component a3 in adhesive (meth)acrylic polymer component A is It is further understood that the minimum and maximum values ​​may be any value between any of the values ​​set forth above. It will be possible.

[0036] According to yet another embodiment, the pre-adhesive mixture contains a specific content of pre-adhesive (meta ) acrylic polymer component B. For example, the pre-adhesive (metal) in the pre-adhesive mixture may contain p) The content of acrylic polymer component B is at least 100% by weight based on the total weight of the pre-adhesive mixture. at least about 51% by weight, e.g., at least about 53% by weight, or at least about 55% by weight, or at least about 58% by weight, or at least about 60% by weight, or at least about 6 3% by weight, or at least about 65% by weight, or at least about 68% by weight, or less at least about 70% by weight, or at least about 73% by weight, or even at least about 75% by weight According to yet another embodiment, the pre-adhesive (meth)acrylate in the pre-adhesive mixture may be in the amount of 0.01 wt %. The content of acrylic polymer component B is approximately 98% by weight based on the total weight of the pre-adhesive mixture. % by weight or less, for example, about 95% by weight or less, or about 92% by weight or less, or about 90% by weight or less or less, or about 87% by weight or less, or about 85% by weight or less, or about 82% by weight or less, The pre-adhesive (meth)acrylic in the pre-adhesive mixture can be up to about 80% by weight. The content of polymer component B is within the range between any of the above minimum and maximum values. It will be understood that there may be a pre-adhesive (meth)acrylic in the pre-adhesive mixture. The content of the system polymer component B may be any value between any of the above minimum and maximum values. It will be understood that the value may be

[0037] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component B is It may comprise an adhesive monomer component b1 and a pre-adhesive monomer component b2.

[0038] According to a particular embodiment, the pre-adhesive monomer component b1 is a C1-C24 acrylic acid ester. According to yet another embodiment, the alkyl group of the pre-adhesive component b1 can be: It may be linear, branched with one or more branching sites, or cyclic. For example, the alkyl group may be methyl, ethyl, propyl, isopropyl, butyl, isobutyl, Pentyl, 2-pentyl, hexyl, heptyl, octyl, isooctyl, 2-ethylhexyl xyl, tert-octyl, nonyl, decyl, 2-propylheptyl, undecyl, Isopropyl-5-methylhexyl acrylate, tetradecyl, hexyl hexadecyl, octadecyl, having 16 to 22 carbon atoms and at least two branches branched alkyl groups having 2-positions, phenyl, benzyl, cyclohexyl, isobornyl, Mantyl, 3,3,5-trimethylcyclohexyl, norbornyl or a mixture thereof According to certain embodiments, the argon may include, but is not limited to, those selected from the group consisting of: alkyl groups include those selected from butyl, isooctyl, and 2-ethylhexyl. These include, but are not limited to:

[0039] According to yet another embodiment, the pre-adhesive monomer component b2 is a hydroxyl-containing pre-adhesive monomer component b3. Adhesive (meth)acrylic monomers and primary, secondary, or tertiary amino groups Nitrogen-containing monomers or nitrogen-containing monomers having primary, secondary, or tertiary amide groups and the ethylenically unsaturated functional pre-adhesive monomer may be selected from the group consisting of According to a particular embodiment, the pre-adhesive monomer component b2 is 2-hydroxyethyl acrylate. acrylate, 2-hydroxypropyl acrylate, 2-hydroxybutyl acrylate, 2-Hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxyethyl methacrylate Hydroxybutyl methacrylate, N-methylacrylamide, N-ethylacrylamide , N-hexyl acrylamide, N-octylacrylamide, t-butyl acrylamide amide, N,N-dimethylacrylamide, N,N-dimethylmethacrylamide, N,N-dimethyl Ethyl acrylamide, N,N-diethyl methacrylamide, N,N-dimethylamino N,N-dimethylaminopropyl methacrylate, N,N-dimethylaminopropyl methacrylate N,N-dimethylaminoethyl acrylate, B-(dimethylaminopropyl acrylate) Methylamido)ethyl acrylate, dimethylaminoethyl acrylamide, N-vinyl Pyrrolidone; N-vinylcaprolactam, acrylamide, n-hydroxymethyl acrylate acrylamide, n-hydroxyethyl acrylamide, or a mixture thereof. However, it is not limited to these.

[0040] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component B is For example, the pre-adhesive (meth)acrylic monomer component b1 may contain The content of the pre-adhesive monomer component b1 in the vinyl polymer component B is At least about 40% by weight, for example, at least about 40% by weight of the total weight of the acrylic polymer component B or at least about 43% by weight, or at least about 45% by weight, or at least about 48% by weight, is at least about 50% by weight, or at least about 53% by weight, or at least about 55% by weight % by weight, or at least about 58% by weight, or at least about 63% by weight, or at least or at least about 65%, or at least about 68%, or at least about 70%, is at least about 73% by weight, or at least about 75% by weight, or at least about 78% by weight % by weight, or at least about 80% by weight, at least about 83% by weight, or at least about 85% by weight % by weight, or at least about 88% by weight, or even at least about 90% by weight According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component B The content of the adhesive monomer component b1 is the same as that of the pre-adhesive (meth)acrylic polymer component B. About 99% by weight or less, for example, about 98.5% by weight or less, or about 98% by weight or less, based on the total weight % or less, or about 97.5% by weight or less, or about 97.0% by weight or less, or about 96.5 % by weight, or about 96.0% by weight or less, or about 95.5% by weight or less, or about 95.0 The pre-adhesive monomer in the pre-adhesive (meth)acrylic polymer component B may be % by weight or less. The content of the monomer component b1 is within the range between any of the above minimum and maximum values. It will be understood that the pre-adhesive (meth)acrylic polymer component B may The content of the pre-adhesive monomer component b1 is within the above minimum and maximum values. It will further be understood that the value may be any value between.

[0041] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component B is For example, the pre-adhesive (meth)acrylic monomer component b2 may contain The content of the pre-adhesive monomer component b2 in the vinyl polymer component B is At least about 1% by weight, for example, at least about 2% by weight, or at least about 3% by weight, or at least about 4% by weight, or less At least about 5% by weight, or at least about 6% by weight, or at least about 7% by weight, or at least about 5% by weight at least about 8% by weight, or at least about 9% by weight, or at least about 10% by weight, or or at least about 11% by weight, or at least about 12% by weight, or at least about 13% by weight %, or at least about 14%, or even at least about 15% by weight According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component B The content of the adhesive monomer component b2 is the same as that of the pre-adhesive (meth)acrylic polymer component A. About 60% by weight or less, for example, about 57% by weight or less, or about 55% by weight or less, based on the total weight or less, or about 52% by weight or less, or about 50% by weight or less, or about 47% by weight or less, is about 45% by weight or less, or about 42% by weight or less, or about 40% by weight or less, or about 37% by weight or less % by weight or less, or about 35% by weight or less, or about 32% by weight or less, or about 30% by weight or less or less, or about 27% by weight or less, or about 25% by weight or less, or about 23% by weight or less, The amount of the pre-adhesive (meth)acrylic polymer component B may be about 20% by weight or less. The content of the adhesive monomer component b2 is between any of the above minimum and maximum values. It will be understood that the range of the pre-adhesive (meth)acrylic polymer composition may be within the range. The content of the pre-adhesive monomer component b2 in component B is either the minimum or maximum value mentioned above. It will be further understood that the value may be any value between

[0042] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component B is According to certain embodiments, the adhesive monomer component b3 may further comprise a pre-adhesive monomer. -Component b3 reacts with both pre-adhesive monomer component b1 and pre-adhesive monomer component b2. may be different.

[0043] According to a particular embodiment, the pre-adhesive monomer component b3 is an ethylenically unsaturated monomer According to yet another embodiment, the pre-adhesive monomer component b3 may be a hydroxy and hydroxy-containing acrylic ester monomers having an ethylenically unsaturated group. According to yet another embodiment, the pre-adhesive monomer component b3 is a primary, secondary, or Nitrogen-containing monomers having a primary or tertiary amino group, or a primary, secondary, or tertiary amide group According to yet another embodiment, the pre-adhesive monomer may include a nitrogen-containing monomer having the formula: Component b3 may comprise a vinyl monomer. According to a particular embodiment, the pre-adhesive monomer -Component b3 is 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate acrylate, 2-hydroxybutyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxyethyl acrylate Hydroxypropyl methacrylate, 2-hydroxybutyl methacrylate, N-methyl Acrylamide, N-ethylacrylamide, N-hexylacrylamide, N-octyl Acrylamide, t-butylacrylamide, N,N-dimethylacrylamide, N,N -dimethylmethacrylamide, N,N-diethylacrylamide, N,N-diethylmeth Acrylamide, N,N-dimethylaminoethyl methacrylate, N,N-dimethylamino Propyl methacrylate, N,N-dimethylaminoethyl acrylate, N,N-dimethyl B-(dimethylamido)ethyl acrylate, dimethyl Aminoethylacrylamide, N-vinylpyrrolidone; N-vinylcaprolactam, acrylic acid acrylamide, n-hydroxymethyl acrylamide, n-hydroxyethyl acrylamide The polymer may be selected from, but is not limited to, a hydroxybenzoate ...

[0044] According to yet another embodiment, the pre-adhesive (meth)acrylic polymer component B is For example, the pre-adhesive (meth)acrylic monomer component b3 may contain The content of the pre-adhesive monomer component b3 in the vinyl polymer component B is At least about 0.1% by weight, for example, at least about 0.1% by weight, based on the total weight of the acrylic polymer component B. At least about 0.5% by weight, or at least about 1.0% by weight, or at least about 1.5% by weight %, or at least about 2.0% by weight, or at least about 2.5% by weight, or less At least about 3.0 wt. %, or at least about 3.5 wt. %, or at least about 4.0 wt. % %, or at least about 4.5% by weight, or at least about 5.0% by weight, or less At least about 5.5% by weight, or at least about 6.0% by weight, or at least about 6.5% by weight %, or even at least about 7.0% by weight. Content of pre-adhesive monomer component b3 in pre-adhesive (meth)acrylic polymer component B is about 60% by weight or less based on the total weight of the pre-adhesive (meth)acrylic polymer component B , for example, about 55% by weight or less, or about 50% by weight or less, or about 45% by weight or less, is about 40% by weight or less, or about 35% by weight or less, or about 30% by weight or less, or about 25% by weight or less % by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less or less, or about 13% by weight or less, or about 10% by weight or less. The content of the pre-adhesive monomer component b3 in the acrylic polymer component B is the minimum value above and It will be understood that the range may be anywhere between a lower limit and a higher limit. The content of the pre-adhesive monomer component b3 in the adhesive (meth)acrylic polymer component B is It is further understood that the minimum and maximum values ​​may be any value between any of the values ​​set forth above. It will be possible.

[0045] According to certain embodiments, the pre-adhesive tackifier component may be selected from the group consisting of C5, C9, C5 / C9, di- Cyclopentadiene, terpene, or hydrogenated resins thereof, or combinations thereof may include:

[0046] According to yet another embodiment, the pre-adhesive mixture comprises a specific content of pre-adhesive tackifier. For example, the content of the pre-adhesive tackifier component in the pre-adhesive mixture may be is at least about 0.1 wt. %, for example, at least about 1 wt. %, based on the total weight of the pre-adhesive mixture. or at least about 0.5 wt. %, or at least about 1.0 wt. %, or at least about 1.5 wt. % , or at least about 2.0 wt. %, or at least about 2.5 wt. %, or at least or at least about 3.0 wt.%, or at least about 3.5 wt.%, or at least about 4.0 wt.% , or at least about 4.5% by weight, or at least about 5.0% by weight, or at least or at least about 5.5 wt.%, or at least about 6.0 wt.%, or at least about 6.5 wt.% % or even at least about 7.0% by weight. The content of the pre-adhesive tackifier component in the adhesive mixture is based on the total weight of the pre-adhesive mixture. In contrast, about 30% by weight or less, for example, about 25% by weight or less, or about 20% by weight or less, is about 18% by weight or less, or about 15% by weight or less, or about 13% by weight or less, or about 10% by weight or less The content of the pre-adhesive tackifier component in the pre-adhesive mixture may be less than or equal to 100% of the pre-adhesive tackifier component. It will be understood that the range may be between any of the minimum and maximum values. The content of the pre-adhesive tackifier component in the pre-adhesive mixture must be within the above minimum and maximum values. It will further be understood that the value may be any value between any of the values.

[0047] Referring now to the adhesive compositions formed in accordance with the embodiments described herein, The adhesive composition comprises a (meth)acrylic polymer component A, a (meth)acrylic polymer component B, and a (meth)acrylic polymer component C. and a tackifier component.

[0048] According to a particular embodiment, the (meth)acrylic polymer component A has a high glass transition temperature ( According to yet another embodiment, the (meth)acrylic polymer component ( The methacrylic polymer component A has a glass transition temperature (T g) and its weight percentage, the specific Tg estimated by the Fox equation For example, the (meth)acrylic polymer component A may have a temperature of at least about 40°C, e.g. For example, at least about 45°C, or at least about 50°C, or at least about 55°C, or at least about 60°C, or at least about 65°C, or at least about 70°C, or at least about It may have a glass transition temperature (Tg) of 75°C or even at least about 80°C. The glass transition temperature of the acrylic polymer component A is within a range between any of the above values. It will be understood that the glass transition temperature of the (meth)acrylic polymer component A is , it will be further understood that the value may be any value between any of the above values.

[0049] According to yet another embodiment, the (meth)acrylic polymer component A has a specific molecular weight. For example, the (meth)acrylic polymer component A may have a molecular weight of at least about 5,000 g / mol, e.g., at least about 7,500 g / mol or at least about 10,000 g / mol / mol or at least about 12,500 g / mol or at least about 15,000 g / mol or at least about 17,500 g / mol or at least about 20,000 g / mol or at least about 25,000 g / mol or at least about 27,500 g / mol or at least about 30,000 g / mol or at least about 32,500 g / mol or at least about 35,000 g / mol or at least about 37,500 g / mol or at least about 40,000 g / mol or at least about 42,500 g mol or even at least about 45,000 g / mol. According to another embodiment, the (meth)acrylic polymer component A has a viscosity of about 200,000 g / m ol or less, for example, about 150,000 g / mol or less, or even 100,000 g / mol or less. The molecular weight of the (meth)acrylic polymer component B can be the same as that of the (meth)acrylic polymer component B described above. It will be understood that the range may be between any of the minimum and maximum values. The molecular weight of the (meth)acrylic polymer component B is either the minimum or maximum value described above. It will be further understood that the value may be any value between

[0050] According to yet another embodiment, the (meth)acrylic polymer component A may be acidic. For purposes of the embodiments described herein, the term "acidic" refers to the According to certain embodiments, the composition may be defined as containing an acid functional monomer. The total level of acidic monomers in Part A is greater than about 1 wt. %, or greater than about 3 wt. %, or greater than 5 wt. %. % by weight, or greater than about 7% by weight.

[0051] According to a particular embodiment, the (meth)acrylic polymer component B has a low glass transition temperature ( According to yet another embodiment, the (meth)acrylic polymer component ( The methacrylic polymer component B has a glass transition temperature (T g) and its weight percentage, the specific Tg estimated by the Fox equation For example, the (meth)acrylic polymer component B may have a temperature of about 20° C. or lower, for example, about Glass below 15°C, or below about 10°C, or below about 5°C, or even below about 0°C The glass transition temperature of the (meth)acrylic polymer component B may be It will be understood that the (meth)acrylic acid may range between any of the above values. The glass transition temperature of the vinyl polymer component B can be any value between any of the values ​​above. It will be further understood that

[0052] According to yet another embodiment, the (meth)acrylic polymer component B has a specific molecular weight. For example, the (meth)acrylic polymer component B may have a molecular weight of at least about 200,000. g / mol, e.g., at least about 400,000 g / mol or at least about 600 ,000 g / mol or at least about 800,000 g / mol or at least about 1 ,000,000 g / mol or at least about 1,200,000 g / mol or less at least about 1,400,000 g / mol or at least about 1,600,000 g / m ol or at least about 1,800,000 g / mol or at least about 2,000, 000 g / mol or at least about 2,200,000 g / mol or at least about 2,400,000 g / mol or at least about 2,600,000 g / mol or at least about 2,800,000 g / mol or at least about 3,000,000 g / According to yet another embodiment, the (meth)acrylic polymer may have a molecular weight of 100 mol. Component B is about 20,000,000 g / mol or less, for example, about 15,000,000 g / mol The molecular weight of the (meth)acrylic polymer component B may be the same or less than the above. It will be understood that the range may be between any of the minimum and maximum values. The molecular weight of the (meth)acrylic polymer component B is within the range of the minimum and maximum values ​​mentioned above. It will be further understood that the value may be any value between either.

[0053] According to yet another embodiment, the (meth)acrylic polymer component B may be basic. For purposes of the embodiments described herein, the term "basic" refers to a polymer component. In some embodiments, the compound may be defined as containing a basic monomer in B. The basic monomer is a nitrogen-containing monomer having a primary, secondary, or tertiary amino group. Alternatively, the basic monomer may be a nitrogen-containing monomer having a primary, secondary, or tertiary amide group. According to some embodiments, the total amount of basic monomers in component B may be 0.01 to 0.01. Typical levels are greater than about 1% by weight, or greater than about 3% by weight, or greater than 5% by weight, or greater than about 7% by weight. %, greater than about 9% by weight, or greater than about 11% by weight, or greater than about 13% by weight.

[0054] According to yet another embodiment, the adhesive composition comprises a specific content of (meth)acrylic polymer. For example, the adhesive composition may contain a (meth)acrylic polymer component A. The content of the adhesive composition is at least about 2.0 wt. %, for example, at least about 1.0 wt. %, based on the total weight of the adhesive composition. At least about 2.5% by weight, or at least about 3.0% by weight, or at least about 3.5% by weight % by weight, or at least about 4.0% by weight, or at least about 4.5% by weight, or less at least about 5.0 wt. %, or at least about 5.5 wt. %, or at least about 6.0 wt. % % by weight, or at least about 6.5% by weight, or at least about 7.0% by weight, or less at least about 7.5% by weight, or at least about 8.5% by weight, or at least about 9.0% by weight % by weight, or at least about 9.5% by weight, or even at least about 10.0% by weight. According to yet another embodiment, the (meth)acrylic polymer component in the adhesive composition may The content of component A is about 49.0% by weight or less, for example, about 4. 7.0% by weight or less, or about 45.0% by weight or less, or about 42.0% by weight or less, or about 40.0% by weight or less, or about 37.0% by weight or less, or about 35.0% by weight or less, or about 32.0% by weight or less, or about 30.0% by weight or less, or about 27.0% by weight or less , or about 25.0% by weight or less, or about 22.0% by weight or less, or about 20.0% by weight or less, or about 17.0% by weight or less, or about 15.0% by weight or less, or even about 12. The content of the (meth)acrylic polymer component A in the adhesive composition may be 0.0% by weight or less. It is understood that the amount can range between any of the minimum and maximum values ​​recited above. The content of the (meth)acrylic polymer component A in the adhesive composition is It will be understood that the minimum and maximum values ​​may be any value between any of the minimum and maximum values. cormorant.

[0055] According to yet another embodiment, the (meth)acrylic polymer component A is a monomer component a 1 and monomer component a2.

[0056] According to a particular embodiment, the monomer component a1 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component a1 is t-butyl acrylate, methyl Methacrylate, ethyl methacrylate, isopropyl methacrylate, n-butyl methacrylate Acrylate, isobutyl methacrylate, s-butyl methacrylate, t-butyl methacrylate Acrylate, Stearyl Methacrylate, Phenyl Methacrylate, Cyclohexyl Acrylate Sil, cyclohexyl methacrylate, isobornyl acrylate, isobornyl methacrylate acrylate, benzyl methacrylate, 3,3,5 trimethylcyclohexyl acrylate , Propyl methacrylate, Adamantyl acrylate, Adamantyl methacrylate , dicyclopentanyl acrylate, dicyclopentanyl methacrylate, norbornyl The polymer may comprise acrylate, styrene, α-methylstyrene, or a mixture thereof. Not limited to these.

[0057] According to yet another embodiment, the monomer component a2 comprises an acidic group and an ethylenically unsaturated group. According to yet another embodiment, the monomer component a2 may be an acidic monomer having the formula: According to yet another embodiment, the monomer component may be an acid-containing (meth)acrylic monomer. Component a2 is acrylic acid, methacrylic acid, itaconic acid, fumaric acid, crotonic acid, citraconic acid Acid, Maleic Acid, Oleic Acid, β-Carboxyethyl (Meth)acrylate, 2-Sulfo Ethyl methacrylate, styrene sulfonic acid, 2-acrylamido-2-methylpropane Selected from, but not limited to, sulfonic acid, vinylphosphonic acid, or mixtures thereof. The copolymer may contain acidic monomers that are not included in the copolymer.

[0058] According to yet another embodiment, the (meth)acrylic polymer component A has a specific content For example, the monomer component a1 in the (meth)acrylic polymer component A may be The content of component a1 is at least 1 / 2 of the total weight of the (meth)acrylic polymer component A. about 40% by weight, e.g., at least about 43% by weight, or at least about 45% by weight, is at least about 48% by weight, or at least about 50% by weight, or at least about 53% by weight % by weight, or at least about 55% by weight, or at least about 58% by weight, or at least or at least about 63% by weight, or at least about 65% by weight, or at least about 68% by weight, is at least about 70% by weight, or at least about 73% by weight, or at least about 75% by weight % by weight, or at least about 78% by weight, or at least about 80% by weight % by weight, or at least about 85% by weight, or at least about 88% by weight, or even It may be at least about 90% by weight. According to yet another embodiment, the (meth)acrylic The content of the monomer component a1 in the polymer component A is About 99% by weight or less, for example, about 98.5% by weight or less, or about 98% by weight or less, based on the total weight % or less, or about 97.5% by weight or less, or about 97.0% by weight or less, or about 96.5 % by weight, or about 96.0% by weight or less, or about 95.5% by weight or less, or about 95.0 The content of the monomer component a1 in the (meth)acrylic polymer component A may be 5% by weight or less. It is understood that the amount can range between any of the minimum and maximum values ​​recited above. The content of the monomer component a1 in the (meth)acrylic polymer component A is It is further understood that the minimum and maximum values ​​may be any value between any of the values ​​set forth above. It will be possible.

[0059] According to yet another embodiment, the (meth)acrylic polymer component A has a specific content For example, the monomer a2 in the (meth)acrylic polymer component A may be The content of component a2 is at least 1 / 2 of the total weight of the (meth)acrylic polymer component A. about 0.1% by weight, e.g., at least about 0.5% by weight, or at least about 1.0% by weight , or at least about 1.5 wt. %, or at least about 2.0 wt. %, or at least or at least about 2.5 wt.%, or at least about 3.0 wt.%, or at least about 3.5 wt.% , or at least about 4.0% by weight, or at least about 4.5% by weight, or at least or at least about 5.0 wt.%, or at least about 5.5 wt.%, or at least about 6.0 wt.% , or at least about 6.5% by weight, or even at least about 7.0% by weight According to yet another embodiment, the monomer component a in the (meth)acrylic polymer component A The content of 2 is about 20.0% by weight based on the total weight of the (meth)acrylic polymer component A. or less, for example, about 19.5% by weight or less, or about 19.0% by weight or less, or about 18.5 % by weight or less, or about 18.0% by weight or less, or about 17.5% by weight or less, or about 17 0.0% by weight or less, or about 16.5% by weight or less, or about 16.0% by weight or less, or about 15.5% by weight or less, or about 15.0% by weight or less, or about 14.5% by weight or less, is about 14.0% by weight or less, or about 13.5% by weight or less, or about 13.0% by weight or less; Or it may be about 12.5% ​​by weight or less, or about 12.0% by weight or less. The content of the monomer component a2 in the vinyl polymer component A is the minimum or maximum value mentioned above. It will be understood that the (meth)acrylic poly The content of the monomer component a2 in the monomer component A is either of the minimum value and the maximum value described above. It will be further understood that the value may be any value between 0 and 1.

[0060] According to yet another embodiment, the (meth)acrylic polymer component A is a monomer component a According to a particular embodiment, the monomer component a3 may further comprise monomer component a1 and monomer component a2.

[0061] According to a particular embodiment, monomer component a3 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component a3 is a hydroxyl-containing (meth)acrylic and acrylamide. According to a particular embodiment, the monomer component a3 is 2-hydroxyethyl acrylate. acrylate, 2-hydroxypropyl acrylate, 2-hydroxybutyl acrylate, 2- Hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxy N-butyl methacrylate, N-methyl acrylamide, N-ethyl acrylamide, N -Hexyl acrylamide, N-octylacrylamide, t-butyl acrylamide, N,N-dimethylacrylamide, N,N-dimethylmethacrylamide, N,N-diethyl acrylamide, N,N-diethylmethacrylamide, N,N-dimethylaminoethyl Methacrylate, N,N-dimethylaminopropyl methacrylate, N,N-dimethylamino Aminoethyl acrylate, N,N-dimethylaminopropyl acrylate, B-(dimethylaminopropyl) (amino)ethyl acrylate, dimethylaminoethyl acrylamide, N-vinylpyrrolidone N-vinylcaprolactam, acrylamide, n-hydroxymethyl acrylamide amide, n-hydroxyethyl acrylamide, or a mixture thereof. , but not limited to these.

[0062] According to yet another embodiment, the (meth)acrylic polymer component A has a specific content For example, the monomer a3 in the (meth)acrylic polymer component A may be The content of component a3 is at least 100% by weight of the (meth)acrylic polymer component A. about 0.1% by weight, e.g., at least about 0.5% by weight, or at least about 1.0% by weight , or at least about 1.5 wt. %, or at least about 2.0 wt. %, or at least or at least about 2.5 wt.%, or at least about 3.0 wt.%, or at least about 3.5 wt.% , or at least about 4.0% by weight, or at least about 4.5% by weight, or at least or at least about 5.0 wt.%, or at least about 5.5 wt.%, or at least about 6.0 wt.% , or at least about 6.5% by weight, or even at least about 7.0% by weight According to yet another embodiment, the monomer component a in the (meth)acrylic polymer component A The content of 3 is about 60% by weight or less based on the total weight of the (meth)acrylic polymer component A. , for example, about 55% by weight or less, or about 50% by weight or less, or about 45% by weight or less, is about 40% by weight or less, or about 35% by weight or less, or about 30% by weight or less, or about 25% by weight or less % by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less or less, or about 13% by weight or less, or about 10% by weight or less. The content of the monomer component a3 in the polymer component A is the minimum value or the maximum value mentioned above. It will be understood that the (meth)acrylic polymer may be in any range therebetween. The content of the monomer component a3 in the component A is either the minimum value or the maximum value described above. It will further be understood that the value may be any value between.

[0063] According to yet another embodiment, the adhesive composition comprises a specific content of (meth)acrylic polymer. For example, the adhesive composition may contain a (meth)acrylic polymer component B. The content of the adhesive composition is at least about 51% by weight, for example, at least or at least about 53% by weight, or at least about 55% by weight, or at least about 58% by weight, or or at least about 60% by weight, or at least about 63% by weight, or at least about 65% by weight % by weight, or at least about 68% by weight, or at least about 70% by weight, or less Both may be about 73% by weight, or even at least about 75% by weight. According to the embodiment, the content of the (meth)acrylic polymer component B in the adhesive composition is About 98% by weight or less, for example, about 95% by weight or less, or about 92% by weight or less, based on the total weight of the composition. % by weight or less, or about 90% by weight or less, or about 87% by weight or less, or about 85% by weight or less %, or about 82% by weight, or even about 80% by weight or less. The content of the methacrylic polymer component B is either the minimum value or the maximum value described above. It will be understood that the (meth)acrylic acid in the adhesive composition may be within a range between The content of the polymer component B may be any value between the minimum and maximum values ​​above. It will be appreciated that the value of

[0064] According to yet another embodiment, the (meth)acrylic polymer component B is a monomer component b 1 and monomer component b2.

[0065] According to a particular embodiment, the monomer component b1 is a C1-C24 acrylic ester. According to yet another embodiment, the alkyl group of component b1 may be linear, one or more branched According to yet another embodiment, the alkyl group may be branched or cyclic, with the moiety: Methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, 2-pentyl hexyl, heptyl, octyl, isooctyl, 2-ethylhexyl, tert-octyl Octyl, nonyl, decyl, 2-propylheptyl, undecyl, tridecyl acrylate , (2-isopropyl-5-methyl)hexyl, tetradecyl, hexadecyl, octadecy alkyl, branched alkyl having 16 to 22 carbon atoms and at least two branching sites phenyl, benzyl, cyclohexyl, isobornyl, adomantyl, 3,3,5 trimethylcyclohexyl, norbornyl or mixtures thereof. According to certain embodiments, the alkyl group may be, but is not limited to, butyl ... The alkyl esters may include, but are not limited to, those selected from: 2-octyl, 2-isooctyl, and 2-ethylhexyl. It will not be done.

[0066] According to yet another embodiment, the monomer component b2 is a hydroxyl-containing (meth)acrylic acid. and nitrogen-containing monomers having a primary, secondary, or tertiary amino group, or or from the group consisting of nitrogen-containing monomers having a primary, secondary, or tertiary amide group According to a particular embodiment, the ethylenically unsaturated functional monomer may be selected. Mer component b2 is 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate acrylate, 2-hydroxybutyl acrylate, 2-hydroxyethyl methacrylate, 2- Hydroxypropyl methacrylate, 2-hydroxybutyl methacrylate, N-methyl Acrylamide, N-ethylacrylamide, N-hexylacrylamide, N-octyl N,N-dimethylacrylamide, N, N-dimethylmethacrylamide, N,N-diethylacrylamide, N,N-diethylmethacrylamide N,N-dimethylaminoethyl methacrylate, N,N-dimethylaminoethyl methacrylate N,N-dimethylaminoethyl acrylate, N,N-dimethylaminopropyl methacrylate ethylaminopropyl acrylate, B-(dimethylamido)ethyl acrylate, dimethicone Aminoethyl acrylamide, N-vinylpyrrolidone; N-vinylcaprolactam, Acrylamide, n-hydroxymethyl acrylamide, n-hydroxyethyl acrylamide The hydroxybenzoate may be selected from, but is not limited to, hydroxybenzoates ...

[0067] According to yet another embodiment, the (meth)acrylic polymer component B has a specific content For example, the monomer component b1 in the (meth)acrylic polymer component B may be The content of component b1 is at least 100% by weight of the (meth)acrylic polymer component B. about 40% by weight, e.g., at least about 43% by weight, or at least about 45% by weight, is at least about 48% by weight, or at least about 50% by weight, or at least about 53% by weight % by weight, or at least about 55% by weight, or at least about 58% by weight, or at least or at least about 63% by weight, or at least about 65% by weight, or at least about 68% by weight, is at least about 70% by weight, or at least about 73% by weight, or at least about 75% by weight % by weight, or at least about 78% by weight, or at least about 80% by weight % by weight, or at least about 85% by weight, or at least about 88% by weight, or even It may be at least about 90% by weight. According to yet another embodiment, the (meth)acrylic The content of the monomer component b1 in the polymer component B is About 99% by weight or less, for example, about 98.5% by weight or less, or about 98% by weight or less, based on the total weight % or less, or about 97.5% by weight or less, or about 97.0% by weight or less, or about 96.5 % by weight, or about 96.0% by weight or less, or about 95.5% by weight or less, or about 95.0 The content of the monomer component b1 in the (meth)acrylic polymer component B may be 5% by weight or less. It is understood that the amount can range between any of the minimum and maximum values ​​recited above. The content of the monomer component b1 in the (meth)acrylic polymer component B is It is further understood that the minimum and maximum values ​​may be any value between any of the values ​​set forth above. It will be possible.

[0068] According to yet another embodiment, the (meth)acrylic polymer component B has a specific content For example, the monomer b2 in the (meth)acrylic polymer component B may be The content of component b2 is at least 1 / 2 of the total weight of the (meth)acrylic polymer component B. About 1% by weight, for example, at least about 2% by weight, or at least about 3% by weight, or less at least about 4% by weight, or at least about 5% by weight, or at least about 6% by weight, or at least about 7% by weight, or at least about 8% by weight, or at least about 9% by weight, or or at least about 10% by weight, or at least about 11% by weight, or at least about 12% by weight % by weight, or at least about 13% by weight, or at least about 14% by weight, or even It may be at least about 15% by weight. According to yet another embodiment, the (meth)acrylic The content of the monomer component b2 in the polymer component B is About 60% by weight or less, for example, about 57% by weight or less, or about 55% by weight or less, based on the total weight or less, or about 52% by weight or less, or about 50% by weight or less, or about 47% by weight or less, is about 45% by weight or less, or about 42% by weight or less, or about 40% by weight or less, or about 37% by weight or less % by weight or less, or about 35% by weight or less, or about 32% by weight or less, or about 30% by weight or less or less, or about 27% by weight or less, or about 25% by weight or less, or about 23% by weight or less, The amount of the monomer component b in the (meth)acrylic polymer component B may be about 20% by weight or less. The content of 2 may be within a range between any of the above minimum and maximum values. It will be understood that the inclusion of the monomer component b2 in the (meth)acrylic polymer component B It is further understood that the amount can be any value between any of the minimum and maximum values ​​listed above. will be understood.

[0069] According to yet another embodiment, the (meth)acrylic polymer component B is a monomer component b According to a particular embodiment, monomer component b3 may further comprise monomer component b1 and monomer component b2.

[0070] According to a particular embodiment, monomer component b3 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component b3 has a hydroxyl group and an ethylenic It may include hydroxy-containing acrylic ester monomers having unsaturated groups. According to the embodiment, the monomer component b3 may be a primary, secondary or tertiary amino group or an N,N -Dialkylaminoalkyl (meth)acrylate and nitrogen-containing ethylenically unsaturated group According to yet another embodiment, the monomer component b3 may comprise a vinyl-containing monomer. According to a particular embodiment, the monomer component b3 may comprise a 2-hydroxyethylene ethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxybutyl acrylate acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate , 2-hydroxybutyl methacrylate, N-methylacrylamide, N-ethyl acrylate acrylamide, N-hexyl acrylamide, N-octylacrylamide, t-butyl acrylamide N,N-dimethylacrylamide, N,N-dimethylmethacrylamide, N ,N-Diethylacrylamide, N,N-Diethylmethacrylamide, N,N-Dimethyl Aminoethyl methacrylate, N,N-dimethylaminopropyl methacrylate, N,N -dimethylaminoethyl acrylate, N,N-dimethylaminopropyl acrylate, B-(Dimethylamido)ethyl acrylate, dimethylaminoethyl acrylamide, N -Vinylpyrrolidone; N-vinylcaprolactam, acrylamide, n-hydroxymethyl acrylamide, n-hydroxyethyl acrylamide, or a mixture thereof It can be selected from, but is not limited to, these.

[0071] According to yet another embodiment, the (meth)acrylic polymer component B has a specific content For example, the monomer b3 in the (meth)acrylic polymer component B may be The content of component b3 is at least 100% by weight of the (meth)acrylic polymer component B. about 0.1% by weight, e.g., at least about 0.5% by weight, or at least about 1.0% by weight , or at least about 1.5 wt. %, or at least about 2.0 wt. %, or at least or at least about 2.5 wt.%, or at least about 3.0 wt.%, or at least about 3.5 wt.% , or at least about 4.0% by weight, or at least about 4.5% by weight, or at least or at least about 5.0 wt.%, or at least about 5.5 wt.%, or at least about 6.0 wt.% , or at least about 6.5% by weight, or even at least about 7.0% by weight According to yet another embodiment, the monomer component b in the (meth)acrylic polymer component B The content of 3 is about 60% by weight or less based on the total weight of the (meth)acrylic polymer component B. , for example, about 55% by weight or less, or about 50% by weight or less, or about 45% by weight or less, is about 40% by weight or less, or about 35% by weight or less, or about 30% by weight or less, or about 25% by weight or less % by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less or less, or about 13% by weight or less, or about 10% by weight or less. The content of the monomer component b3 in the polymer component B is within the above minimum and maximum values. It will be understood that the (meth)acrylic polymer may be in any range therebetween. The content of the monomer component b3 in the component B is either the minimum value or the maximum value described above. It will further be understood that the value may be any value between.

[0072] According to certain embodiments, the tackifier component may be selected from the group consisting of C5, C9, C5 / C9, dicyclopentasiloxane ... may contain tadiene, terpene, or hydrogenated resins thereof, or combinations thereof .

[0073] According to yet another embodiment, the adhesive composition comprises a specific content of a tackifier component. For example, the content of the tackifier component in the adhesive composition is and at least about 0.1 wt. %, for example at least about 0.5 wt. %, or at least or at least about 1.0 wt. %, or at least about 1.5 wt. %, or at least about 2.0 wt. % , or at least about 2.5% by weight, or at least about 3.0% by weight, or at least or at least about 3.5 wt.%, or at least about 4.0 wt.%, or at least about 4.5 wt.% , or at least about 5.0% by weight, or at least about 5.5% by weight, or at least at least about 6.0 wt. %, or at least about 6.5 wt. %, or even at least about 7.0 According to yet another embodiment, the content of the tackifier component in the adhesive composition may be % by weight. The amount is about 30% by weight or less, for example, about 25% by weight or less, based on the total weight of the adhesive composition. or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less, or The amount of the tackifier component in the adhesive composition may be about 13% by weight, or about 10% by weight or less. It is understood that the content may be within a range between any of the above minimum and maximum values. It will be understood that the content of the tackifier component in the adhesive composition is within the above minimum and maximum values. It will further be understood that the value may be any value between any of the above values.

[0074] Referring now to single layer foam tapes, the embodiments described herein generally and a single layer foam tape comprising an adhesive composition formed according to the embodiments described herein. may be related to.

[0075] For illustrative purposes, FIG. 2 shows a single layer photoresist formed in accordance with embodiments described herein. As shown in FIG. 2, the single layer foam tape 200 is The adhesive composition 230 may include a foam core 210. The foam core 210 may be disposed within the adhesive composition 230. It may include hollow microspheres 220 .

[0076] According to certain embodiments, the single layer foam tape 200 may have a particular thickness. For example, the single layer foam tape 200 may have a thickness of at least about 0.125 mm, e.g., at least about 0.13mm at least about 0.135mm or at least about 0.14mm or less At least about 0.145 mm or at least about 0.15 mm or at least about 0.155 mm m or at least about 0.16 mm or at least about 0.165 mm or at least about 0.17 mm or at least about 0.175 mm or even at least about 0.18 mm According to yet another embodiment, the single layer foam tape 200 may have a thickness of about 0 0.25 mm or less, for example, about 0.245 mm or less, or about 0.24 mm or less, or about 0.235 mm or less, or about 0.23 mm or less, or about 0.225 mm or less, or About 0.22 mm or less, or about 0.215 mm or less, or about 0.21 mm or less, or Approximately 0.205 mm or less, or approximately 0.20 mm or less, or approximately 0.195 mm or less, or The monolayer foam may have a thickness of about 0.19 mm or less, or about 0.185 mm or less. The thickness of the tape 200 may range between any of the minimum and maximum values ​​listed above. It will be understood that the thickness of the single layer foam tape 200 is within the above minimum and It will further be appreciated that the maximum value may be any value between any of the maximum values.

[0077] According to certain embodiments, the foam core 210 may have a particular thickness. The foam core 210 is at least about 0.125 mm, for example, at least about 0.13 mm. At least about 0.135 mm or at least about 0.14 mm or at least about 0.1 45 mm or at least about 0.15 mm or at least about 0.155 mm or less at least about 0.16 mm or at least about 0.165 mm or at least about 0.17 mm 0.175 mm or even at least about 0.18 mm thick. According to yet another embodiment, the foam core 210 may be about 0.25 mm or less, e.g. For example, approximately 0.245 mm or less, or approximately 0.24 mm or less, or approximately 0.235 mm or less , or about 0.23 mm or less, or about 0.225 mm or less, or about 0.22 mm or less , or about 0.215 mm or less, or about 0.21 mm or less, or about 0.205 mm or less or less than about 0.20 mm, or less than about 0.195 mm, or less than about 0.19 mm The thickness of the foam core 210 may be less than or equal to about 0.185 mm. It will be understood that the range may be between any of the minimum and maximum values. The thickness of the foam core 210 may be any value between any of the minimum and maximum values ​​listed above. It will further be understood that the value of the suffix may be any value.

[0078] According to certain embodiments, the hollow microspheres 220 can be made of certain materials. The hollow microspheres 220 can be glass beads. The microspheres 220 can be polymeric microspheres. According to yet another embodiment, hollow microspheres 220 can be a combination of glass beads and polymer microspheres.

[0079] Reference is now made to adhesive composition 230 formed in accordance with embodiments described herein. The adhesive composition 230 includes a (meth)acrylic polymer component A, a (meth)acrylic polymer The composition may comprise a polymer component B, and a tackifier component.

[0080] According to certain embodiments, the (meth)acrylic polymer component A of the adhesive composition 230 is , which may be referred to as a high glass transition temperature (Tg) (meth)acrylic polymer component. According to an embodiment, the (meth)acrylic polymer component A of the adhesive composition 230 has the following constituent moieties: Based on the glass transition temperature (Tg) of the homopolymer and its weight percent, For example, the adhesive composition 230 may have a specific Tg as predicted by the Fox equation. The (meth)acrylic polymer component A is at least about 40°C, for example, at least about 45°C. °C or at least about 50°C or at least about 55°C or at least about 60°C or at least about 65°C, or at least about 70°C, or at least about 75°C, or even less The adhesive composition 230 may have a glass transition temperature (Tg) of at least about 80° C. The glass transition temperature of the acrylic polymer component A is within a range between any of the above values. It will be understood that the (meth)acrylic polymer component of the adhesive composition 230 It is further understood that the glass transition temperature of A can be any value between any of the values ​​above. It will be done.

[0081] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 A may have a specific molecular weight. For example, the (meth)acrylic poly(A) of the adhesive composition 230 may have a specific molecular weight. The mer component A has a molecular weight of at least about 5,000 g / mol, for example, at least about 7,500 g / mol. / mol or at least about 10,000 g / mol or at least about 12,500 g / mol or at least about 15,000 g / mol or at least about 17,500 g / mol or at least about 20,000 g / mol or at least about 25,000 g / mol or at least about 27,500 g / mol or at least about 30,000 g / mol or at least about 32,500 g / mol or at least about 35,000 g / mol or at least about 37,500 g / mol or at least about 40,000 g / mol or at least about 42,500 g / mol or even at least about 45,0 According to yet another embodiment, the adhesive composition 230 may have a molecular weight of 0.000 g / mol. The (meth)acrylic polymer component A has a molecular weight of about 200,000 g / mol or less, for example, about Molecular weights of 150,000 g / mol or less, or even about 100,000 g / mol or less The molecular weight of the (meth)acrylic polymer component A may be within the above-mentioned minimum and maximum values. It will be understood that the adhesive composition 23 may be in the range of any of the following: The molecular weight of the (meth)acrylic polymer component A in 0 is the minimum value or the maximum value mentioned above. It will be understood that it can be any value in between.

[0082] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 A can be acidic. For purposes of the embodiments described herein, the term "acidic" can be defined as containing an acid functional monomer in polymer component A. According to embodiments, the total level of acidic monomers in component A is greater than about 1 wt. %, or greater than about 3 % by weight, or greater than 5% by weight, or greater than about 7% by weight.

[0083] According to certain embodiments, the (meth)acrylic polymer component B of the adhesive composition 230 is , can be referred to as a low glass transition temperature (Tg) (meth)acrylic polymer component. According to an embodiment, the (meth)acrylic polymer component B of the adhesive composition 230 has the following constituent moieties: Based on the glass transition temperature (Tg) of the homopolymer and its weight percent, For example, the adhesive composition 230 may have a specific Tg as predicted by the Fox equation. The (meth)acrylic polymer component B is heated to about 20° C. or less, for example, about 15° C. or less, or having a glass transition temperature (Tg) of 10°C or less, or about 5°C or less, or even about 0°C or less; The glass transition temperature of the (meth)acrylic polymer component B of the adhesive composition 230 is It will be understood that the adhesive composition may range between any of the values ​​recited above. The glass transition temperature of the (meth)acrylic polymer component B of 30 is between any of the above values. It will be further understood that the value of .times. ...

[0084] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 B may have a specific molecular weight. For example, the (meth)acrylic poly(B) of the adhesive composition 230 The mer component B has a molecular weight of at least 200,000 g / mol, for example at least about 400,0 00 g / mol or at least about 600,000 g / mol or at least about 800 ,000 g / mol or at least about 1,000,000 g / mol or at least about 1,200,000 g / mol or at least about 1,400,000 g / mol or is at least about 1,600,000 g / mol or at least about 1,800,000 g / mol / mol or at least about 2,000,000 g / mol or at least about 2,20 0,000 g / mol or at least about 2,400,000 g / mol or at least or at least about 2,600,000 g / mol or at least about 2,800,000 g / mol or at least about 3,000,000 g / mol. According to an embodiment, the (meth)acrylic polymer component B of the adhesive composition 230 is about 20,000 0,000 g / mol or less, for example, about 15,000,000 g / mol or less. The molecular weight of the (meth)acrylic polymer component B of the adhesive composition 230 may be the same as that of the (meth)acrylic polymer component B described above. It will be understood that the range may be between any of the minimum and maximum values. The molecular weight of the (meth)acrylic polymer component B of the adhesive composition 230 is the minimum value and It will be understood that the value may be any value between any of the above and maximum values.

[0085] According to yet another embodiment, the (meth)acrylic polymer component B may be basic. For purposes of the embodiments described herein, the term "basic" refers to a polymer component. In some embodiments, the compound may be defined as containing a basic monomer in B. The basic monomer is a nitrogen-containing monomer having a primary, secondary, or tertiary amino group. Alternatively, the basic monomer may be a nitrogen-containing monomer having a primary, secondary, or tertiary amide group. According to some embodiments, the total amount of basic monomers in component B may be 0.01 to 0.01. Typical levels are greater than about 1% by weight, or greater than about 3% by weight, or greater than 5% by weight, or greater than about 7% by weight. %, greater than about 9% by weight, or greater than about 11% by weight, or greater than about 13% by weight.

[0086] According to yet another embodiment, the adhesive composition 230 contains a specific content of (meth)acrylic acid. For example, the (meth)acrylic polymer component A in the adhesive composition 230 may contain The content of polymer component A is at least about 2.0 parts by weight based on the total weight of the adhesive composition 230. % by weight, for example, at least about 2.5%, or at least about 3.0%, or less at least about 3.5% by weight, or at least about 4.0% by weight, or at least about 4.5 % by weight, or at least about 5.0% by weight, or at least about 5.5% by weight, or less at least about 6.0% by weight, or at least about 6.5% by weight, or at least about 7.0% by weight % by weight, or at least about 7.5% by weight, or at least about 8.5% by weight, or less at least about 9.0% by weight, or at least about 9.5% by weight, or even at least about According to yet another embodiment, the (meth)acrylate in the adhesive composition 230 may be 10.0 wt %. p) The content of the acrylic polymer component A is about 4% by weight based on the total weight of the adhesive composition 230. 9.0% by weight or less, for example, about 47.0% by weight or less, or about 45.0% by weight or less, is about 42.0% by weight or less, or about 40.0% by weight or less, or about 37.0% by weight or less; or about 35.0% by weight or less, or about 32.0% by weight or less, or about 30.0% by weight or less or less than about 27.0 wt. %, or less than about 25.0 wt. %, or less than about 22.0 wt. % or less, or about 20.0% by weight or less, or about 17.0% by weight or less, or about 15.0 % or less by weight, or even about 12.0% or less by weight. The content of the methacrylic polymer component A is either the minimum value or the maximum value described above. It will be understood that the (meth)acrylate in the adhesive composition 230 may be within a range between 0.1 and 1.0. The content of acrylic polymer component A is between the minimum and maximum values ​​above. It will be understood that the value of .times. ...

[0087] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 A may include monomer component a1 and monomer component a2.

[0088] According to a particular embodiment, the monomer component a1 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component a1 is t-butyl acrylate, methyl Methacrylate, ethyl methacrylate, isopropyl methacrylate, n-butyl methacrylate Acrylate, isobutyl methacrylate, s-butyl methacrylate, t-butyl methacrylate Acrylate, Stearyl Methacrylate, Phenyl Methacrylate, Cyclohexyl Acrylate Sil, cyclohexyl methacrylate, isobornyl acrylate, isobornyl methacrylate acrylate, benzyl methacrylate, 3,3,5 trimethylcyclohexyl acrylate , Propyl methacrylate, Adamantyl acrylate, Adamantyl methacrylate , dicyclopentanyl acrylate, dicyclopentanyl methacrylate, norbornyl The polymer may comprise acrylate, styrene, α-methylstyrene, or a mixture thereof. Not limited to these.

[0089] According to yet another embodiment, the monomer component a2 comprises an acidic group and an ethylenically unsaturated group. According to yet another embodiment, the monomer component a2 may be an acidic monomer having the formula: According to yet another embodiment, the monomer component may be an acid-containing (meth)acrylic monomer. Component a2 is acrylic acid, methacrylic acid, itaconic acid, fumaric acid, crotonic acid, citraconic acid Acid, Maleic Acid, Oleic Acid, β-Carboxyethyl (Meth)acrylate, 2-Sulfo Ethyl methacrylate, styrene sulfonic acid, 2-acrylamido-2-methylpropane Selected from, but not limited to, sulfonic acid, vinylphosphonic acid, or mixtures thereof. The copolymer may contain acidic monomers that are not included in the copolymer.

[0090] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 A may contain a specific content of the monomer component a1. For example, the (meta) p) The content of the monomer component a1 in the acrylic polymer component A is At least about 40% by weight, for example, based on the total weight of the (meth)acrylic polymer component A , at least about 43% by weight, or at least about 45% by weight, or at least about 48% by weight % by weight, or at least about 50% by weight, or at least about 53% by weight, or at least or at least about 55% by weight, or at least about 58% by weight, or at least about 63% by weight, is at least about 65% by weight, or at least about 68% by weight, or at least about 70% by weight % by weight, or at least about 73% by weight, or at least about 75% by weight, or at least at least about 78% by weight, or at least about 80% by weight, at least about 83% by weight, or less At least about 85% by weight, or at least about 88% by weight, or even at least about 90% by weight According to yet another embodiment, the (meth)acrylic adhesive composition 230 may be The content of the monomer component a1 in the polymer component A is determined by the (meth)acrylic acid of the adhesive composition 230. about 99% by weight or less, for example, about 98.5% by weight or less, based on the total weight of the vinyl polymer component A or less, or about 98% by weight or less, or about 97.5% by weight or less, or about 97.0% by weight or less or less than about 96.5% by weight, or less than about 96.0% by weight, or less than about 95.5% by weight or less, or about 95.0 wt. % or less. The content of the monomer component a1 in the polymer component A is the minimum value or the maximum value mentioned above. It will be understood that the adhesive composition 230 (meth)acrylate may be in any range therebetween. The content of the monomer component a1 in the acrylic polymer component A is within the above minimum and maximum values. It will further be understood that the value may be any value between any of the values.

[0091] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 A may contain a specific content of the monomer component a2. For example, p) The content of the monomer component a2 in the acrylic polymer component A is At least about 0.1% by weight, for example, based on the total weight of the (meth)acrylic polymer component A For example, at least about 0.5 wt. %, or at least about 1.0 wt. %, or at least about 1.5% by weight, or at least about 2.0% by weight, or at least about 2.5% by weight, or or at least about 3.0 wt. %, or at least about 3.5 wt. %, or at least about 4.0% by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or or at least about 5.5% by weight, or at least about 6.0% by weight, or at least about 6.5% by weight, or even at least about 7.0% by weight. According to the above, the monomer component a in the (meth)acrylic polymer component A of the adhesive composition 230 The content of 2 is based on the total weight of the (meth)acrylic polymer component A of the adhesive composition 230. and about 20.0 wt. % or less, for example, about 19.5 wt. % or less, or about 19.0 wt. % or less. or less than about 18.5% by weight, or less than about 18.0% by weight, or less than about 17.5% by weight % or less, or about 17.0% by weight or less, or about 16.5% by weight or less, or about 16.0 % by weight or less, or about 15.5% by weight or less, or about 15.0% by weight or less, or about 14 0.5% by weight or less, or about 14.0% by weight or less, or about 13.5% by weight or less, or about 13.0% by weight or less, or about 12.5% ​​by weight or less, or about 12.0% by weight or less The monomer component a2 in the (meth)acrylic polymer component A of the adhesive composition 230 is obtained. It is understood that the content may be within a range between any of the above minimum and maximum values. It will be understood that the monomers in the (meth)acrylic polymer component A of the adhesive composition 230 The content of component a2 is any value between the minimum and maximum values ​​above. It will be further understood that this may be possible.

[0092] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 A may further comprise monomer component a3. According to certain embodiments, monomer component a3 may be different from both monomer component a1 and monomer component a2.

[0093] According to a particular embodiment, monomer component a3 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component a3 is a hydroxyl-containing (meth)acrylic and acrylamide. According to a particular embodiment, the monomer component a3 is 2-hydroxyethyl acrylate. acrylate, 2-hydroxypropyl acrylate, 2-hydroxybutyl acrylate, 2- Hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxy N-butyl methacrylate, N-methyl acrylamide, N-ethyl acrylamide, N -Hexyl acrylamide, N-octylacrylamide, t-butyl acrylamide, N,N-dimethylacrylamide, N,N-dimethylmethacrylamide, N,N-diethyl acrylamide, N,N-diethylmethacrylamide, N,N-dimethylaminoethyl Methacrylate, N,N-dimethylaminopropyl methacrylate, N,N-dimethylamino Aminoethyl acrylate, N,N-dimethylaminopropyl acrylate, B-(dimethylaminopropyl) (amino)ethyl acrylate, dimethylaminoethyl acrylamide, N-vinylpyrrolidone N-vinylcaprolactam, acrylamide, n-hydroxymethyl acrylamide amide, n-hydroxyethyl acrylamide, or a mixture thereof. , but not limited to these.

[0094] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 A may contain a specific content of the monomer component a3. For example, the (meta) p) The content of the monomer component a3 in the acrylic polymer component A is At least about 0.1% by weight, for example, based on the total weight of the (meth)acrylic polymer component A For example, at least about 0.5 wt. %, or at least about 1.0 wt. %, or at least about 1.5% by weight, or at least about 2.0% by weight, or at least about 2.5% by weight, or or at least about 3.0 wt. %, or at least about 3.5 wt. %, or at least about 4.0% by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or or at least about 5.5% by weight, or at least about 6.0% by weight, or at least about 6.5% by weight, or even at least about 7.0% by weight. According to the above, the monomer component a in the (meth)acrylic polymer component A of the adhesive composition 230 The content of 3 is based on the total weight of the (meth)acrylic polymer component A of the adhesive composition 230. and about 60% by weight or less, for example, about 55% by weight or less, or about 50% by weight or less, or about 45% by weight or less, or about 40% by weight or less, or about 35% by weight or less, or about 30% by weight or less % or less, or about 25% by weight or less, or about 20% by weight or less, or about 18% by weight or less, Or it may be about 15% by weight or less, or about 13% by weight or less, or about 10% by weight or less The content of the monomer component a3 in the (meth)acrylic polymer component A of the adhesive composition 230 It is understood that the amount can range between any of the minimum and maximum values ​​recited above. The monomer components in the (meth)acrylic polymer component A of the adhesive composition 230 The content of component a3 can be any value between any of the above minimum and maximum values. It will be further understood that

[0095] According to yet another embodiment, the adhesive composition 230 may be formed by the addition of a cellulose acetate copolymer to a cellulose acetate copolymer. The adhesive composition 230 may contain a significant amount of (meth)acrylic polymer component B. For example, The content of the (meth)acrylic polymer component B in the adhesive composition 230 is 0, at least about 51% by weight, for example, at least about 53% by weight, is at least about 55% by weight, or at least about 58% by weight, or at least about 60% by weight % by weight, or at least about 63% by weight, or at least about 65% by weight, or at least or at least about 68% by weight, or at least about 70% by weight, or at least about 73% by weight, may further be at least about 75% by weight. According to yet another embodiment, the adhesive composition The content of the (meth)acrylic polymer component B of the adhesive composition 230 in the adhesive 230 is about 98% by weight or less, for example, about 95% by weight or less, based on the total weight of the agent composition 230; is about 92% by weight or less, or about 90% by weight or less, or about 87% by weight or less, or about 85% by weight or less % by weight or less, or about 82% by weight, or even about 80% by weight or less. The content of the (meth)acrylic polymer component B of the adhesive composition 230 in the composition 230 is It will be understood that the range may be between any of the minimum and maximum values ​​set forth above. Wax. (Meth)acrylic polymer component B of adhesive composition 230 The content of may be any value between any of the above minimum and maximum values. will be understood.

[0096] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 B may include monomer component b1 and monomer component b2.

[0097] According to a particular embodiment, the monomer component b1 is a C1-C24 acrylic ester. According to yet another embodiment, the alkyl group of component b1 may be linear, one or more branched According to yet another embodiment, the alkyl group may be branched or cyclic, with the moiety: Methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, 2-pentyl hexyl, heptyl, octyl, isooctyl, 2-ethylhexyl, tert-octyl Octyl, nonyl, decyl, 2-propylheptyl, undecyl, tridecyl acrylate , (2-isopropyl-5-methyl)hexyl, tetradecyl, hexadecyl, octadecy alkyl, branched alkyl having 16 to 22 carbon atoms and at least two branching sites phenyl, benzyl, cyclohexyl, isobornyl, adomantyl, 3,3,5 trimethylcyclohexyl, norbornyl or mixtures thereof. According to certain embodiments, the alkyl group may be, but is not limited to, butyl ... The alkyl esters may include, but are not limited to, those selected from: 2-octyl, 2-isooctyl, and 2-ethylhexyl. It will not be done.

[0098] According to yet another embodiment, the monomer component b2 is a hydroxyl-containing (meth)acrylic acid. and nitrogen-containing monomers having a primary, secondary, or tertiary amino group, or or from the group consisting of nitrogen-containing monomers having a primary, secondary, or tertiary amide group According to a particular embodiment, the ethylenically unsaturated functional monomer may be selected. Mer component b2 is 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate acrylate, 2-hydroxybutyl acrylate, 2-hydroxyethyl methacrylate, 2- Hydroxypropyl methacrylate, 2-hydroxybutyl methacrylate, N-methyl Acrylamide, N-ethylacrylamide, N-hexylacrylamide, N-octyl N,N-dimethylacrylamide, N, N-dimethylmethacrylamide, N,N-diethylacrylamide, N,N-diethylmethacrylamide N,N-dimethylaminoethyl methacrylate, N,N-dimethylaminoethyl methacrylate N,N-dimethylaminoethyl acrylate, N,N-dimethylaminopropyl methacrylate ethylaminopropyl acrylate, B-(dimethylamido)ethyl acrylate, dimethicone Aminoethyl acrylamide, N-vinylpyrrolidone; N-vinylcaprolactam, Acrylamide, n-hydroxymethyl acrylamide, n-hydroxyethyl acrylamide The hydroxybenzoate may be selected from, but is not limited to, hydroxybenzoates ...

[0099] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 B may contain a specific content of the monomer component b1. For example, p) The content of the monomer component b1 in the acrylic polymer component B is At least about 40% by weight, for example, based on the total weight of the (meth)acrylic polymer component B , at least about 43% by weight, or at least about 45% by weight, or at least about 48% by weight % by weight, or at least about 50% by weight, or at least about 53% by weight, or at least or at least about 55% by weight, or at least about 58% by weight, or at least about 63% by weight, is at least about 65% by weight, or at least about 68% by weight, or at least about 70% by weight % by weight, or at least about 73% by weight, or at least about 75% by weight, or at least at least about 78% by weight, or at least about 80% by weight, at least about 83% by weight, or less At least about 85% by weight, or at least about 88% by weight, or even at least about 90% by weight According to yet another embodiment, the (meth)acrylic adhesive composition 230 may be The content of the monomer component b1 in the polymer component B is determined by the (meth)acrylic acid of the adhesive composition 230. about 99% by weight or less, for example, about 98.5% by weight or less, based on the total weight of the vinyl polymer component B or less, or about 98% by weight or less, or about 97.5% by weight or less, or about 97.0% by weight or less or less than about 96.5% by weight, or less than about 96.0% by weight, or less than about 95.5% by weight or less, or about 95.0 wt. % or less. The content of the monomer component b1 in the polymer component B is set to any one of the above minimum and maximum values. It will be understood that the adhesive composition 230 (meth)acrylate may be in any range therebetween. The content of the monomer component b1 in the acrylic polymer component B is within the above minimum and maximum values. It will further be understood that the value may be any value between any of the values.

[0100] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 B may contain a specific content of the monomer component b2. For example, p) The content of the monomer component b2 in the acrylic polymer component B is At least about 1% by weight, for example, based on the total weight of the (meth)acrylic polymer component B at least about 2% by weight, or at least about 3% by weight, or at least about 4% by weight, or or at least about 5% by weight, or at least about 6% by weight, or at least about 7% by weight , or at least about 8% by weight, or at least about 9% by weight, or at least about 10 % by weight, or at least about 11% by weight, or at least about 12% by weight, or less At least about 13% by weight, or at least about 14% by weight, or even at least about 15% by weight According to yet another embodiment, the (meth)acrylic adhesive composition 230 may be The content of the monomer component b2 in the polymer component B is determined by the (meth)acrylic acid of the adhesive composition 230. about 60% by weight or less, for example, about 57% by weight or less, based on the total weight of the vinyl polymer component B; or about 55% by weight or less, or about 52% by weight or less, or about 50% by weight or less, or about 47% by weight or less, or about 45% by weight or less, or about 42% by weight or less, or about 40% by weight or less % or less, or about 37% by weight or less, or about 35% by weight or less, or about 32% by weight or less; or about 30% by weight or less, or about 27% by weight or less, or about 25% by weight or less, or about The (meth)acrylic acid content of the adhesive composition 230 may be 23% by weight or less, or about 20% by weight or less. The content of the monomer component b2 in the acrylic polymer component B is within the range of the above minimum and maximum values. It will be understood that the adhesive composition 230 may range anywhere between. The content of the monomer component b2 in the (meth)acrylic polymer component B is the minimum value and It will be further understood that the value of .alpha. can be any value between any of the above and maximum values. .

[0101] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 B may further comprise monomer component b3. According to certain embodiments, monomer component b3 may be different from both monomer component b1 and monomer component b2.

[0102] According to a particular embodiment, monomer component b3 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component b3 comprises an acidic group and an ethylenically unsaturated group. According to yet another embodiment, the monomer component b3 may comprise an acidic monomer having the formula: Hydroxy-containing acrylic ester monoester having a hydroxyl group and an ethylenically unsaturated group According to yet another embodiment, the monomer component b3 may be a primary, secondary, or Nitrogen-containing monomers having a primary or tertiary amino group, or a primary, secondary, or tertiary amide group and nitrogen-containing monomers having ethylenically unsaturated groups. According to certain embodiments, the monomer component b3 may comprise a vinyl monomer. The monomer component b2 is 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate Acrylate, 2-hydroxybutyl acrylate, 2-hydroxyethyl methacrylate, 2 -Hydroxypropyl methacrylate, 2-hydroxybutyl methacrylate, N-methyl acrylamide, N-ethylacrylamide, N-hexylacrylamide, N-octyl acrylamide t-butylacrylamide, N,N-dimethylacrylamide, N ,N-dimethylmethacrylamide, N,N-diethylacrylamide, N,N-diethyl Methacrylamide, N,N-dimethylaminoethyl methacrylate, N,N-dimethylamino Aminopropyl methacrylate, N,N-dimethylaminoethyl acrylate, N,N-di Methylaminopropyl acrylate, B-(dimethylamido)ethyl acrylate, dimethylaminopropyl acrylate ethylaminoethylacrylamide, N-vinylpyrrolidone; N-vinylcaprolactam, Acrylamide, n-hydroxymethyl acrylamide, n-hydroxyethyl acrylamide The carboxylic acid may be selected from, but is not limited to, a carboxylic acid ester ...

[0103] According to yet another embodiment, the (meth)acrylic polymer component of the adhesive composition 230 B may contain a specific content of the monomer component b3. For example, p) The content of the monomer component b3 in the acrylic polymer component B is At least about 0.1% by weight, for example, based on the total weight of the (meth)acrylic polymer component B For example, at least about 0.5 wt. %, or at least about 1.0 wt. %, or at least about 1.5% by weight, or at least about 2.0% by weight, or at least about 2.5% by weight, or or at least about 3.0 wt. %, or at least about 3.5 wt. %, or at least about 4.0% by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or or at least about 5.5% by weight, or at least about 6.0% by weight, or at least about 6.5% by weight, or even at least about 7.0% by weight. According to the above, the monomer component b in the (meth)acrylic polymer component B of the adhesive composition 230 The content of 3 is based on the total weight of the (meth)acrylic polymer component B of the adhesive composition 230. and about 60% by weight or less, for example, about 55% by weight or less, or about 50% by weight or less, or about 45% by weight or less, or about 40% by weight or less, or about 35% by weight or less, or about 30% by weight or less % or less, or about 25% by weight or less, or about 20% by weight or less, or about 18% by weight or less, Or it may be about 15% by weight or less, or about 13% by weight or less, or about 10% by weight or less The content of the monomer component b3 in the (meth)acrylic polymer component B of the adhesive composition 230 It is understood that the amount can range between any of the minimum and maximum values ​​recited above. The monomer components in the (meth)acrylic polymer component B of the adhesive composition 230 The content of component b3 can be any value between any of the above minimum and maximum values. It will be further understood that

[0104] According to certain embodiments, the tackifier component of the adhesive composition 230 may be selected from the group consisting of C5, C9, C5 / C9, dicyclopentadiene, terpene, or hydrogenated resins thereof, or It may include a combination.

[0105] According to yet another embodiment, the adhesive composition 230 may be formed by the addition of a cellulose acetate copolymer to a cellulose acetate copolymer. For example, the adhesive composition 230 may contain a tackifier component. The content of the tackifier component is at least about 0. 1% by weight, e.g., at least about 0.5% by weight, or at least about 1.0% by weight, is at least about 1.5 wt. %, or at least about 2.0 wt. %, or at least about 2 0.5% by weight, or at least about 3.0% by weight, or at least about 3.5% by weight, is at least about 4.0% by weight, or at least about 4.5% by weight, or at least about 5 0.0% by weight, or at least about 5.5% by weight, or at least about 6.0% by weight, may be at least about 6.5% by weight, or even at least about 7.0% by weight. According to another embodiment, the tackifier component of the adhesive composition 230 The content of is about 30% by weight or less, for example, about 25% by weight or less, based on the total weight of the adhesive composition 230. % by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less or less, or about 13% by weight, or about 10% by weight or less. The content of the tackifier component in the adhesive composition 230 is within the above minimum and maximum values. It will be understood that the adhesive composition 230 may be in any range therebetween. The content of the tackifier component in the adhesive composition 230 is within the above minimum and maximum values. It will be further understood that the value may be any value between 0 and 1.

[0106] Referring now to foam tape, the embodiments described herein generally refer to foam tape. a foam core and at least a first adhesive layer covering a first surface of the foam core, a first adhesive layer comprising an adhesive composition formed according to an embodiment described herein; It may further relate to foam tapes.

[0107] For illustrative purposes, FIG. 3 shows a foam tape formed in accordance with embodiments described herein. The foam tape 300 includes a foam core 310 and a foam and a first adhesive layer 340 covering the first surface 312 of the foam core 310. The foam core 310 may include hollow microspheres 320 within a foam material 330. The adhesive layer 340 may include a first adhesive composition 350 .

[0108] According to certain embodiments, the foam tape 300 may have a particular thickness. For example, The foam tape 300 may be at least about 0.10 mm thick, e.g., at least about 0.15 mm thick. m or at least about 0.20 mm or at least about 0.25 mm or at least about 0.30 mm or at least about 0.35 mm or at least about 0.40 mm or less It may have a thickness of at least about 0.45 mm or even at least about 0.50 mm. It is understood that the thickness of the film tape 300 can range between any of the above values. The thickness of the foam tape 300 is between the minimum and maximum values ​​above. It will be further understood that the value of .times. ...

[0109] According to certain embodiments, the foam core 310 may have a particular thickness. The foam core 310 is at least about 0.125 mm, for example, at least about 0.13 mm. At least about 0.135 mm or at least about 0.14 mm or at least about 0.1 45 mm or at least about 0.15 mm or at least about 0.155 mm or less at least about 0.16 mm or at least about 0.165 mm or at least about 0.17 mm 0.175 mm or even at least about 0.18 mm thick. According to yet another embodiment, the foam core 310 may be about 0.25 mm or less, e.g. For example, approximately 0.245 mm or less, or approximately 0.24 mm or less, or approximately 0.235 mm or less , or about 0.23 mm or less, or about 0.225 mm or less, or about 0.22 mm or less , or about 0.215 mm or less, or about 0.21 mm or less, or about 0.205 mm or less or less than about 0.20 mm, or less than about 0.195 mm, or less than about 0.19 mm The thickness of the foam core 310 may be less than or equal to about 0.185 mm. It will be understood that the range may be between any of the minimum and maximum values. The thickness of the foam core 310 may be any value between any of the minimum and maximum values ​​listed above. It will further be understood that the value of the suffix may be any value.

[0110] According to certain embodiments, the hollow microspheres 320 can be made of certain materials. The hollow microspheres 320 can be glass beads. The microspheres 320 can be polymeric microspheres. According to yet another embodiment, hollow microspheres 320 can be a combination of glass beads and polymer microspheres.

[0111] According to yet other embodiments, the foam material 330 can be a specific material, such as According to yet another embodiment, the foam material 330 may be an acrylic material. The foam material 330 may be a polyurethane material. According to yet another embodiment, the foam material 330 may be a polyethylene material. Material 330 can be a PVC material. According to another embodiment, foam material 330 is Any combination of acrylic, polyurethane, polyethylene, or PVC materials It can be a combination.

[0112] According to yet another embodiment, the foam material 330 may be an acrylic foam. According to yet another embodiment, the foam material 330 may be polyurethane foam. .

[0113] According to certain embodiments, the first adhesive layer 340 may have a particular thickness. For example, The first adhesive layer 340 may be at least about 0.125 mm, for example, at least about 0.13 mm at least about 0.135 mm or at least about 0.14 mm or at least about 0 0.145mm or at least about 0.15mm or at least about 0.155mm or At least about 0.16 mm or at least about 0.165 mm or at least about 0.1 7 mm or at least about 0.175 mm or even at least about 0.18 mm thick According to yet another embodiment, the first adhesive layer 340 may have a thickness of about 0.25 mm or more. Below, for example, about 0.245 mm or less, or about 0.24 mm or less, or about 0.235 mm or less m or less, or approximately 0.23 mm or less, or approximately 0.225 mm or less, or approximately 0.22 m m or less, or about 0.215 mm or less, or about 0.21 mm or less, or about 0.205 mm or less, or about 0.20 mm or less, or about 0.195 mm or less, or about 0.19 The thickness of the first adhesive layer 340 may be about 0.185 mm or less. It is understood that may range between any of the above minimum and maximum values. The thickness of the first adhesive layer 340 may be within either of the minimum and maximum values ​​above. It will be further understood that the value may be any value between 0 and 1.

[0114] Reference is now made to a first adhesive composition 350 formed in accordance with embodiments described herein. In light of this, the first adhesive composition 350 comprises a (meth)acrylic polymer component A, a (meth)acrylic polymer component B, a (meth)acrylic polymer component C, a (meth)acrylic polymer component D, a (meth)acrylic polymer component E, a (meth)acrylic polymer component F, a (meth)acrylic polymer component G, a (meth)acrylic polymer component G, a (meth)acrylic polymer component H ... It may contain an acrylic polymer component B, and a tackifier component.

[0115] According to certain embodiments, the (meth)acrylic polymer component of the first adhesive composition 350 Component A can be referred to as a high glass transition temperature (Tg) (meth)acrylic polymer component. According to another embodiment, the (meth)acrylic polymer component of the first adhesive composition 350 A is the glass transition temperature (Tg) of the homopolymer of the constituent monomers and its weight percentage Based on this, the material may have a specific Tg as estimated by the Fox equation. The (meth)acrylic polymer component A of the adhesive composition 350 is heated to a temperature of at least about 40° C., e.g. , at least about 45°C, or at least about 50°C, or at least about 55°C, or At least about 60°C, or at least about 65°C, or at least about 70°C, or at least about 7 It may have a glass transition temperature (Tg) of 5°C or even at least about 80°C. The glass transition temperature of the (meth)acrylic polymer component A of the agent composition 350 is any one of the above values. It will be understood that the viscosity of the first adhesive composition 350 can be within any range. The glass transition temperature of the (meth)acrylic polymer component A may be any value between the above values. It will be further appreciated that the value of .gamma.

[0116] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component A may have a specific molecular weight. For example, the (meth)acrylate of the first adhesive composition 350 may have a specific molecular weight. The acrylic polymer component A has a molecular weight of at least about 5,000 g / mol, for example, at least about 7,500 g / mol or at least about 10,000 g / mol or at least about 1 2,500 g / mol or at least about 15,000 g / mol or at least about 1 7,500 g / mol or at least about 20,000 g / mol or at least about 2 5,000 g / mol or at least about 27,500 g / mol or at least about 3 0,000 g / mol or at least about 32,500 g / mol or at least about 3 5,000 g / mol or at least about 37,500 g / mol or at least about 4 0,000 g / mol or at least about 42,500 g / mol or even less According to yet another embodiment, the first The (meth)acrylic polymer component A of adhesive composition 350 has a viscosity of about 200,000 g / mol l or less, for example, about 150,000 g / mol or less, or even about 100,000 g / mol or less. The molecular weight of the (meth)acrylic polymer component A can be the same as that of the (meth)acrylic polymer component A described above. It will be understood that the range may be between any of the minimum and maximum values. The molecular weight of the (meth)acrylic polymer component A of the first adhesive composition 350 is It will be understood that the value may be any value between any of the minimum and maximum values. .

[0117] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 - Component A may be acidic. For purposes of the embodiments described herein, the term "acidic" The term may be defined as including acid functional monomers in polymer component A. According to certain embodiments, the total level of acidic monomers in component A is greater than about 1% by weight, and may be greater than about 3% by weight, or greater than 5% by weight, or greater than about 7% by weight.

[0118] According to certain embodiments, the (meth)acrylic polymer component of the first adhesive composition 350 Component B can be referred to as a low glass transition temperature (Tg) (meth)acrylic polymer component. According to another embodiment, the (meth)acrylic polymer component of the first adhesive composition 350 B is the glass transition temperature (Tg) of the homopolymer of the constituent monomers and its weight percentage Based on this, the material may have a specific Tg as estimated by the Fox equation. The (meth)acrylic polymer component B of the adhesive composition 350 is heated to about 20° C. or less, for example, about 1 Glass transition temperatures below 5°C, or below about 10°C, or below about 5°C, or even below about 0°C The (meth)acrylic polymer component of the first adhesive composition 350 may have a transition temperature (Tg). It is understood that the glass transition temperature of Part B can range between any of the values ​​recited above. The glass transition temperature of the (meth)acrylic polymer component B of the first adhesive composition 350 It will further be appreciated that the temperature can be any value between any of the above values.

[0119] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component B may have a specific molecular weight. For example, the (meth)acrylate of the first adhesive composition 350 may have a specific molecular weight. The acrylic polymer component B has a molecular weight of at least about 200,000 g / mol, e.g., at least at least about 400,000 g / mol or at least about 600,000 g / mol or less at least about 800,000 g / mol or at least about 1,000,000 g / mol or at least about 1,200,000 g / mol or at least about 1,400,000 g / mol or at least about 1,600,000 g / mol or at least about 1,8 00,000 g / mol or at least about 2,000,000 g / mol or less Both about 2,200,000 g / mol or at least about 2,400,000 g / mol or at least about 2,600,000 g / mol or at least about 2,800,00 It may have a molecular weight of 0 g / mol or at least about 3,000,000 g / mol. According to yet another embodiment, the (meth)acrylic polymer component of the first adhesive composition 350 Molecular weight A is about 20,000,000 g / mol or less, for example, about 15,000,000 g / mol. The (meth)acrylic polymer of the first adhesive composition 350 may have a molecular weight of 0.1 mol or less. The molecular weight of component B may be within a range between any of the minimum and maximum values ​​listed above. It will be understood that the (meth)acrylic polymer of the first adhesive composition 350 The molecular weight of component B can be any value between any of the minimum and maximum values ​​listed above. It will be understood that

[0120] According to yet another embodiment, the (meth)acrylic polymer component B may be basic. For purposes of the embodiments described herein, the term "basic" refers to a polymer component. In some embodiments, the compound may be defined as containing a basic monomer in B. The basic monomer is a nitrogen-containing monomer having a primary, secondary, or tertiary amino group. Alternatively, the basic monomer may be a nitrogen-containing monomer having a primary, secondary, or tertiary amide group. According to some embodiments, the total amount of basic monomers in component B may be 0.01 to 0.01. Typical levels are greater than about 1% by weight, or greater than about 3% by weight, or greater than 5% by weight, or greater than about 7% by weight. %, greater than about 9% by weight, or greater than about 11% by weight, or greater than about 13% by weight.

[0121] According to yet another embodiment, the adhesive composition 350 contains a specific content of (meth)acrylic acid. For example, the (meth)acrylic polymer component A in the first adhesive composition 350 may contain The content of the vinyl polymer component A is at least 100% by weight based on the total weight of the first adhesive composition 350. at least about 2.0 wt. %, e.g., at least about 2.5 wt. %, or at least about 3.0 wt. %. %, or at least about 3.5% by weight, or at least about 4.0% by weight, or less At least about 4.5% by weight, or at least about 5.0% by weight, or at least about 5.5% by weight %, or at least about 6.0% by weight, or at least about 6.5% by weight, or less At least about 7.0% by weight, or at least about 7.5% by weight, or at least about 8.5% by weight %, or at least about 9.0% by weight, or at least about 9.5% by weight, or even According to yet another embodiment, the first adhesive set may comprise at least about 10.0% by weight. The content of the (meth)acrylic polymer component A in the first adhesive composition 350 is 0, about 49.0 wt. % or less, for example, about 47.0 wt. % or less, or about 45.0% by weight or less, or about 42.0% by weight or less, or about 40.0% by weight or less, is about 37.0% by weight or less, or about 35.0% by weight or less, or about 32.0% by weight or less; or about 30.0% by weight or less, or about 27.0% by weight or less, or about 25.0% by weight or less or less than about 22.0 wt. %, or less than about 20.0 wt. %, or less than about 17.0 wt. % or less, or about 15.0% by weight or less, or even about 12.0% by weight or less. The content of the (meth)acrylic polymer component A in the first adhesive composition 350 is It will be understood that the value may be within a range between any of the minimum and maximum values. The content of the (meth)acrylic polymer component A in the first adhesive composition 350 is It will be understood that the value may be any value between any of the minimum and maximum values. .

[0122] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component A may comprise monomer component a1 and monomer component a2.

[0123] According to a particular embodiment, the monomer component a1 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component a1 is t-butyl acrylate, methyl Methacrylate, ethyl methacrylate, isopropyl methacrylate, n-butyl methacrylate Acrylate, isobutyl methacrylate, s-butyl methacrylate, t-butyl methacrylate Acrylate, Stearyl Methacrylate, Phenyl Methacrylate, Cyclohexyl Acrylate Sil, cyclohexyl methacrylate, isobornyl acrylate, isobornyl methacrylate acrylate, benzyl methacrylate, 3,3,5 trimethylcyclohexyl acrylate , Propyl methacrylate, Adamantyl acrylate, Adamantyl methacrylate , dicyclopentanyl acrylate, dicyclopentanyl methacrylate, norbornyl The polymer may comprise acrylate, styrene, α-methylstyrene, or a mixture thereof. Not limited to these.

[0124] According to yet another embodiment, the monomer component a2 comprises an acidic group and an ethylenically unsaturated group. According to yet another embodiment, the monomer component a2 may be an acidic monomer having the formula: According to yet another embodiment, the monomer component may be an acid-containing (meth)acrylic monomer. Component a2 is acrylic acid, methacrylic acid, itaconic acid, fumaric acid, crotonic acid, citraconic acid Acid, Maleic Acid, Oleic Acid, β-Carboxyethyl (Meth)acrylate, 2-Sulfo Ethyl methacrylate, styrene sulfonic acid, 2-acrylamido-2-methylpropane Selected from, but not limited to, sulfonic acid, vinylphosphonic acid, or mixtures thereof. The copolymer may contain acidic monomers that are not included in the copolymer.

[0125] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component A may contain a specific amount of monomer component a1. For example, the first adhesive composition The content of the monomer component a1 in the (meth)acrylic polymer component A of 350 is at least about 100% by weight of the (meth)acrylic polymer component A of the adhesive composition 350; 40% by weight, e.g., at least about 43% by weight, or at least about 45% by weight, or At least about 48% by weight, or at least about 50% by weight, or at least about 53% by weight %, or at least about 55% by weight, or at least about 58% by weight, or at least about 63% by weight, or at least about 65% by weight, or at least about 68% by weight, or At least about 70% by weight, or at least about 73% by weight, or at least about 75% by weight %, or at least about 78% by weight, or at least about 80% by weight % by weight, or at least about 85% by weight, or at least about 88% by weight, or even less According to yet another embodiment, the first adhesive composition 3 The content of the monomer component a1 in the (meth)acrylic polymer component A of 50 is About 99% by weight or more of the (meth)acrylic polymer component A of the agent composition 350 or less, for example, about 98.5% by weight or less, or about 98% by weight or less, or about 97.5% by weight or less or less, or about 97.0% by weight or less, or about 96.5% by weight, or about 96.0% by weight or less, or about 95.5% by weight or less, or about 95.0% by weight or less. The content of the monomer component a1 in the (meth)acrylic polymer component A of the adhesive composition 350 is , it is understood that the value may be within a range between any of the above minimum and maximum values. The monomers in the (meth)acrylic polymer component A of the first adhesive composition 350 The content of component a1 is any value between any of the above minimum and maximum values. It will be further understood that

[0126] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component A may contain a specific amount of monomer component a2. For example, the first adhesive composition The content of the monomer component a2 in the (meth)acrylic polymer component A of 350 is at least about 100% by weight of the (meth)acrylic polymer component A of the adhesive composition 350; 0.1% by weight, e.g., at least about 0.5% by weight, or at least about 1.0% by weight; or at least about 1.5% by weight, or at least about 2.0% by weight, or at least about 2.5% by weight, or at least about 3.0% by weight, or at least about 3.5% by weight; or at least about 4.0% by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or at least about 5.5% by weight, or at least about 6.0% by weight; Or it can be at least about 6.5% by weight, or even at least about 7.0% by weight. According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 The content of the monomer component a2 in the component A is determined by the (meth)acrylic About 20.0 wt. % or less, for example, about 19.5 wt. % based on the total weight of the system polymer component A or less, or about 19.0% by weight or less, or about 18.5% by weight or less, or about 18.0% by weight or less % by weight or less, or about 17.5% by weight or less, or about 17.0% by weight or less, or about 16. 5% by weight or less, or about 16.0% by weight or less, or about 15.5% by weight or less, or about 1 5.0% by weight or less, or about 14.5% by weight or less, or about 14.0% by weight or less, or about 13.5% by weight or less, or about 13.0% by weight or less, or about 12.5% ​​by weight or less, or about 12.0 wt % or less of the (meth)acrylic based adhesive composition 350. The content of the monomer component a2 in the polymer component A is the minimum value or the maximum value mentioned above. It will be understood that the viscosity of the first adhesive composition 350 can be within any range. The content of the monomer component a2 in the (meth)acrylic polymer component A is the minimum value and It will be further understood that the maximum value may be any value between any of the maximum values.

[0127] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component A may further comprise monomer component a3. According to a particular embodiment, the monomer component a4 Component a3 can be different from both monomer component a1 and monomer component a2.

[0128] According to a particular embodiment, monomer component a3 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component a3 is a hydroxyl-containing (meth)acrylic and acrylamide. According to a particular embodiment, the monomer component a3 is 2-hydroxyethyl acrylate. acrylate, 2-hydroxypropyl acrylate, 2-hydroxybutyl acrylate, 2- Hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxy N-butyl methacrylate, N-methyl acrylamide, N-ethyl acrylamide, N -Hexyl acrylamide, N-octylacrylamide, t-butyl acrylamide, N,N-dimethylacrylamide, N,N-dimethylmethacrylamide, N,N-diethyl acrylamide, N,N-diethylmethacrylamide, N,N-dimethylaminoethyl Methacrylate, N,N-dimethylaminopropyl methacrylate, N,N-dimethylamino Aminoethyl acrylate, N,N-dimethylaminopropyl acrylate, B-(dimethylaminopropyl) (amino)ethyl acrylate, dimethylaminoethyl acrylamide, N-vinylpyrrolidone N-vinylcaprolactam, acrylamide, n-hydroxymethyl acrylamide amide, n-hydroxyethyl acrylamide, or a mixture thereof. , but not limited to these.

[0129] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component A may contain a specific amount of monomer component a3. For example, the first adhesive composition The content of the monomer component a3 in the (meth)acrylic polymer component A of 350 is at least about 100% by weight of the (meth)acrylic polymer component A of the adhesive composition 350; 0.1% by weight, e.g., at least about 0.5% by weight, or at least about 1.0% by weight; or at least about 1.5% by weight, or at least about 2.0% by weight, or at least about 2.5% by weight, or at least about 3.0% by weight, or at least about 3.5% by weight; or at least about 4.0% by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or at least about 5.5% by weight, or at least about 6.0% by weight; Or it can be at least about 6.5% by weight, or even at least about 7.0% by weight. According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 The content of the monomer component a3 in the component A is determined by the (meth)acrylic about 60% by weight or less, for example, about 55% by weight or less, based on the total weight of the base polymer component A; or about 50% by weight or less, or about 45% by weight or less, or about 40% by weight or less, or about 3 5% by weight or less, or about 30% by weight or less, or about 25% by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less, or about 13% by weight or less, The (meth)acrylic polyimide of the first adhesive composition 350 may be about 10% by weight or less. The content of the monomer component a3 in the monomer component A is either of the minimum value and the maximum value described above. It will be understood that the thickness of the first adhesive composition 350 may be within a range between 100 and 200 mm. p) The content of the monomer component a3 in the acrylic polymer component A is the minimum and maximum values ​​mentioned above. It will further be understood that the value may be any value between any of the above values.

[0130] According to yet another embodiment, the first adhesive composition 350 comprises a specific content of (meta) The first adhesive composition 350 may contain an acrylic polymer component B. For example, the (meth)acrylic polymer component B may contain an acrylic polymer component B. The content of the acrylic polymer component B is at least 100% by weight based on the total weight of the first adhesive composition 350. at least about 51% by weight, e.g., at least about 53% by weight, or at least about 55% by weight , or at least about 58% by weight, or at least about 60% by weight, or at least about 63% by weight, or at least about 65% by weight, or at least about 68% by weight, or less at least about 70% by weight, or at least about 73% by weight, or even at least about 75% by weight According to yet another embodiment, the (meth)acrylate in the first adhesive composition 350 may be % by weight. The content of the acrylic polymer component B is, relative to the total weight of the first adhesive composition 350, About 98% by weight or less, for example, about 95% by weight or less, or about 92% by weight or less, or about 90% by weight or less % by weight or less, or about 87% by weight or less, or about 85% by weight or less, or about 82% by weight; Or even less than about 80% by weight. The content of the vinyl polymer component B is within the range between any of the above minimum and maximum values. It will be understood that the (meth)acrylic acid content of the first adhesive composition 350 may be within the range. The content of the vinyl polymer component B may be any value between the minimum and maximum values ​​above. It will be understood that the value of the variable may be any value.

[0131] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component B may comprise monomer component b1 and monomer component b2.

[0132] According to a particular embodiment, the monomer component b1 is a C1-C24 acrylic ester. According to yet another embodiment, the alkyl group of component b1 may be linear, one or more branched According to yet another embodiment, the alkyl group may be branched or cyclic, with the moiety: Methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, 2-pentyl hexyl, heptyl, octyl, isooctyl, 2-ethylhexyl, tert-octyl Octyl, nonyl, decyl, 2-propylheptyl, undecyl, tridecyl acrylate , (2-isopropyl-5-methyl)hexyl, tetradecyl, hexadecyl, octadecy alkyl, branched alkyl having 16 to 22 carbon atoms and at least two branching sites phenyl, benzyl, cyclohexyl, isobornyl, adomantyl, 3,3,5 trimethylcyclohexyl, norbornyl or mixtures thereof. According to certain embodiments, the alkyl group may be, but is not limited to, butyl ... The alkyl esters may include, but are not limited to, those selected from: 2-octyl, 2-isooctyl, and 2-ethylhexyl. It will not be done.

[0133] According to yet another embodiment, the monomer component b2 is a hydroxyl-containing (meth)acrylic acid. and nitrogen-containing monomers having a primary, secondary, or tertiary amino group, or or from the group consisting of nitrogen-containing monomers having a primary, secondary, or tertiary amino group According to a particular embodiment, the ethylenically unsaturated functional monomer may be selected. Mer component b2 is 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate acrylate, 2-hydroxybutyl acrylate, 2-hydroxyethyl methacrylate, 2- Hydroxypropyl methacrylate, 2-hydroxybutyl methacrylate, N-methyl Acrylamide, N-ethylacrylamide, N-hexylacrylamide, N-octyl N,N-dimethylacrylamide, N, N-dimethylmethacrylamide, N,N-diethylacrylamide, N,N-diethylmethacrylamide N,N-dimethylaminoethyl methacrylate, N,N-dimethylaminoethyl methacrylate N,N-dimethylaminoethyl acrylate, N,N-dimethylaminopropyl methacrylate ethylaminopropyl acrylate, B-(dimethylamido)ethyl acrylate, dimethicone Aminoethyl acrylamide, N-vinylpyrrolidone; N-vinylcaprolactam, Acrylamide, n-hydroxymethyl acrylamide, n-hydroxyethyl acrylamide The hydroxybenzoate may be selected from, but is not limited to, hydroxybenzoates ...

[0134] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component B may contain a specific amount of monomer component b1. For example, the first adhesive composition The content of the monomer component b1 in the (meth)acrylic polymer component B of 350 is at least about 100% by weight of the (meth)acrylic polymer component B of the adhesive composition 350; 40% by weight, e.g., at least about 43% by weight, or at least about 45% by weight, or At least about 48% by weight, or at least about 50% by weight, or at least about 53% by weight %, or at least about 55% by weight, or at least about 58% by weight, or at least about 63% by weight, or at least about 65% by weight, or at least about 68% by weight, or At least about 70% by weight, or at least about 73% by weight, or at least about 75% by weight %, or at least about 78% by weight, or at least about 80% by weight % by weight, or at least about 85% by weight, or at least about 88% by weight, or even less According to yet another embodiment, the first adhesive composition 3 The content of the monomer component b1 in the (meth)acrylic polymer component B of 50 is About 99% by weight or more of the (meth)acrylic polymer component B of the agent composition 350 or less, for example, about 98.5% by weight or less, or about 98% by weight or less, or about 97.5% by weight or less or less, or about 97.0% by weight or less, or about 96.5% by weight, or about 96.0% by weight or less, or about 95.5% by weight or less, or about 95.0% by weight or less. The content of the monomer component b1 in the (meth)acrylic polymer component B of the adhesive composition 350 is , it is understood that the value may be within a range between any of the above minimum and maximum values. The monomers in the (meth)acrylic polymer component B of the first adhesive composition 350 The content of component b1 is any value between any of the above minimum and maximum values. It will be further understood that

[0135] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component B may contain a specific amount of monomer component b2. For example, the first adhesive composition The content of the monomer component b2 in the (meth)acrylic polymer component B of 350 is at least about 100% by weight of the (meth)acrylic polymer component B of the adhesive composition 350; 1% by weight, for example, at least about 2% by weight, or at least about 3% by weight, or less At least about 4% by weight, or at least about 5% by weight, or at least about 6% by weight, or at least about 4% by weight. at least about 7% by weight, or at least about 8% by weight, or at least about 9% by weight, is at least about 10% by weight, or at least about 11% by weight, or at least about 12% by weight % by weight, or at least about 13% by weight, or at least about 14% by weight, or even less According to yet another embodiment, the first adhesive composition 3 The content of the monomer component b2 in the (meth)acrylic polymer component B of 50 is About 60% by weight or more of the (meth)acrylic polymer component B of the agent composition 350 or less, for example, about 57% by weight or less, or about 55% by weight or less, or about 52% by weight or less, or about 50% by weight or less, or about 47% by weight or less, or about 45% by weight or less, or about 4 2% by weight or less, or about 40% by weight or less, or about 37% by weight or less, or about 35% by weight or less, or about 32% by weight or less, or about 30% by weight or less, or about 27% by weight or less, or about 25% by weight or less, or about 23% by weight or less, or about 20% by weight or less. Monomer component b2 in (meth)acrylic polymer component B of first adhesive composition 350 It is understood that the content may be within a range between any of the above minimum and maximum values. It will be understood that the (meth)acrylic polymer component B of the first adhesive composition 350 The content of the monomer component b2 may be any value between the minimum and maximum values ​​above. It will be further understood that the value may be

[0136] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component B may further comprise monomer component b3. According to a particular embodiment, the monomer component b3 Moiety b3 can be different from both monomer component b1 and monomer component b2.

[0137] According to a particular embodiment, monomer component b3 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component b3 has a hydroxyl group and an ethylenic It may include hydroxy-containing acrylic ester monomers having unsaturated groups. According to the embodiment, the monomer component b3 is a nitrogen-containing copolymer having a primary, secondary or tertiary amino group. or nitrogen-containing monomers having primary, secondary, or tertiary amide groups. According to yet another embodiment, monomer component b3 may comprise a vinyl monomer. According to a particular embodiment, the monomer component b3 is 2-hydroxyethyl acrylate, 2 -hydroxypropyl acrylate, 2-hydroxybutyl acrylate, 2-hydroxy Diethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxybutyl Acrylates, N-methylacrylamide, N-ethylacrylamide, N-hexyl acrylamide, N-octylacrylamide, t-butylacrylamide, N,N- Dimethylacrylamide, N,N-dimethylmethacrylamide, N,N-diethylacrylamide N,N-Diethylmethacrylamide, N,N-Dimethylaminoethylmethacrylamide acrylate, N,N-dimethylaminopropyl methacrylate, N,N-dimethylaminoethyl Acrylate, N,N-dimethylaminopropyl acrylate, B-(dimethylamide ) Ethyl acrylate, dimethylaminoethyl acrylamide, N-vinylpyrrolidone; N-vinylcaprolactam, acrylamide, n-hydroxymethylacrylamide, n -hydroxyethyl acrylamide, or mixtures thereof, Not limited to.

[0138] According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 Component B may contain a specific amount of monomer component b3. For example, the first adhesive composition The content of the monomer component b3 in the (meth)acrylic polymer component B of 350 is at least about 100% by weight of the (meth)acrylic polymer component B of the adhesive composition 350; 0.1% by weight, e.g., at least about 0.5% by weight, or at least about 1.0% by weight; or at least about 1.5% by weight, or at least about 2.0% by weight, or at least about 2.5% by weight, or at least about 3.0% by weight, or at least about 3.5% by weight; or at least about 4.0% by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or at least about 5.5% by weight, or at least about 6.0% by weight; Or it can be at least about 6.5% by weight, or even at least about 7.0% by weight. According to yet another embodiment, the (meth)acrylic polymer of the first adhesive composition 350 The content of the monomer component b3 in the component B is determined by the (meth)acrylic about 60% by weight or less, for example, about 55% by weight or less, based on the total weight of the system polymer component B; or about 50% by weight or less, or about 45% by weight or less, or about 40% by weight or less, or about 3 5% by weight or less, or about 30% by weight or less, or about 25% by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less, or about 13% by weight or less, The (meth)acrylic polyimide of the first adhesive composition 350 may be about 10% by weight or less. The content of the monomer component b3 in the monomer component B is either of the minimum value and the maximum value described above. It will be understood that the thickness of the first adhesive composition 350 may be within a range between 100 and 200 mm. p) The content of the monomer component b3 in the acrylic polymer component B is the minimum and maximum values ​​described above. It will further be understood that the value may be any value between any of the above values.

[0139] According to certain embodiments, the tackifier component of the first adhesive composition 350 is selected from the group consisting of C5, C9 , C5 / C9, dicyclopentadiene, terpene, or hydrogenated resins thereof, or It may include combinations of these.

[0140] According to yet another embodiment, the first adhesive composition 350 comprises a specific content of tackifying agent. For example, the content of the tackifier component in the first adhesive composition 350 may be At least about 0.1 wt. % based on the total weight of the first adhesive composition 350, for example, at least about 0.1 wt. % at least about 0.5% by weight, or at least about 1.0% by weight, or at least about 1.5% by weight % by weight, or at least about 2.0%, or at least about 2.5%, or less at least about 3.0 wt. %, or at least about 3.5 wt. %, or at least about 4.0 wt. % % by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or less At least about 5.5% by weight, or at least about 6.0% by weight, or at least about 6.5% by weight % by weight, or even at least about 7.0% by weight. The content of the tackifier component of the first adhesive composition 350 in the first adhesive composition 350 is , about 30% by weight or more based on the total weight of the first adhesive composition 350 of the first adhesive layer 340 or less, for example, about 25% by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less, or about 13% by weight or about 10% by weight or less. The content of the tackifier component in the adhesive composition 350 is within the range of the above minimum and maximum values. It will be understood that the first adhesive composition 35 may be in the range of any of the above. The content of the tackifier component in the 0 may be any value between the minimum and maximum values ​​above. It will further be understood that the value of the suffix may be any value.

[0141] For illustrative purposes, FIG. 4 shows a foam tape formed in accordance with embodiments described herein. The foam tape 400 includes a foam core 410 and a foam tape 412. A first adhesive layer 440 covers the first surface 412 of the foam core 410, and and a second adhesive layer 460 covering the second surface 414 of the foam core 410. may include hollow microspheres 420 within a foam material 430. The first adhesive layer 440 may include The first adhesive composition 450 may comprise a second adhesive layer 460. May contain 0.

[0142] Foam tape 400 will be described with reference to the foam tape 400 shown in FIG. 0 and all components are described herein with reference to the corresponding components shown in FIG. It will be understood that the present invention may have any of the characteristics described above. In particular, the form shown in FIG. The foam tape 400, the foam core 410, the hollow microspheres 420, the foam material 430, the first The properties of the adhesive layer 440 and the first adhesive composition 450 are shown in FIG. a foam tape 300, a foam core 310, hollow microspheres 320, a foam material 330, a first adhesive layer 340, and the corresponding adhesive composition described herein with respect to first adhesive composition 350. The ion exchange reaction may have any of the following characteristics:

[0143] According to certain embodiments, the second adhesive layer 460 may have a particular thickness. For example, The second adhesive layer 460 may be at least about 0.125 mm, for example, at least about 0.13 mm at least about 0.135 mm or at least about 0.14 mm or at least about 0 0.145mm or at least about 0.15mm or at least about 0.155mm or At least about 0.16 mm or at least about 0.165 mm or at least about 0.1 7 mm or at least about 0.175 mm or even at least about 0.18 mm thick According to yet another embodiment, the second adhesive layer 460 may have a thickness of about 0.25 mm or more. Below, for example, about 0.245 mm or less, or about 0.24 mm or less, or about 0.235 mm or less m or less, or approximately 0.23 mm or less, or approximately 0.225 mm or less, or approximately 0.22 m m or less, or about 0.215 mm or less, or about 0.21 mm or less, or about 0.205 mm or less, or about 0.20 mm or less, or about 0.195 mm or less, or about 0.19 The thickness of the second adhesive layer 460 may be about 0.185 mm or less. It is understood that may range between any of the above minimum and maximum values. The thickness of the second adhesive layer 460 may be within either of the minimum and maximum values ​​above. It will be further understood that the value may be any value between 0 and 1.

[0144] Reference is now made to a second adhesive composition 470 formed in accordance with embodiments described herein. In light of this, the second adhesive composition 470 comprises a (meth)acrylic polymer component A, a (meth)acrylic polymer component B, a (meth)acrylic polymer component C, a (meth)acrylic polymer component D, a (meth)acrylic polymer component E, a (meth)acrylic polymer component F, a (meth)acrylic polymer component G, a (meth)acrylic polymer component G, a (meth)acrylic polymer component H ... It may contain an acrylic polymer component B, and a tackifier component.

[0145] According to certain embodiments, the (meth)acrylic polymer component of the second adhesive composition 470 Component A can be referred to as a high glass transition temperature (Tg) (meth)acrylic polymer component. According to another embodiment, the (meth)acrylic polymer component of the second adhesive composition 470 A is the glass transition temperature (Tg) of the homopolymer of the constituent monomers and its weight percentage Based on this, the material may have a specific Tg as estimated by the Fox equation. The (meth)acrylic polymer component A of the adhesive composition 470 is at least about 40° C., e.g. , at least about 45°C, or at least about 50°C, or at least about 55°C, or At least about 60°C, or at least about 65°C, or at least about 70°C, or at least about 7 It may have a glass transition temperature (Tg) of 5°C or even at least about 80°C. The glass transition temperature of the (meth)acrylic polymer component A of the agent composition 470 is any one of the above values. It will be understood that the viscosity of the second adhesive composition 470 can be within any range. The glass transition temperature of the (meth)acrylic polymer component A may be any value between the above values. It will be further appreciated that the value of .gamma.

[0146] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component A may have a specific molecular weight. For example, the (meth)acrylate of the second adhesive composition 470 may have a specific molecular weight. The acrylic polymer component A has a molecular weight of at least about 5,000 g / mol, for example, at least about 7,500 g / mol or at least about 10,000 g / mol or at least about 1 2,500 g / mol or at least about 15,000 g / mol or at least about 1 7,500 g / mol or at least about 20,000 g / mol or at least about 2 5,000 g / mol or at least about 27,500 g / mol or at least about 3 0,000 g / mol or at least about 32,500 g / mol or at least about 3 5,000 g / mol or at least about 37,500 g / mol or at least about 4 0,000 g / mol or at least about 42,500 g / mol or even less According to yet another embodiment, the second The (meth)acrylic polymer component A of adhesive composition 470 has a viscosity of about 200,000 g / mol l or less, for example, about 150,000 g / mol or less, or even about 100,000 g / mol or less. The molecular weight of the (meth)acrylic polymer component A can be the same as that of the (meth)acrylic polymer component A described above. It will be understood that the range may be between any of the minimum and maximum values. The molecular weight of the (meth)acrylic polymer component A of the second adhesive composition 470 is It will be understood that the value may be any value between any of the minimum and maximum values. .

[0147] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 - Component A may be acidic. For purposes of the embodiments described herein, the term "acidic" The term may be defined as including acid functional monomers in polymer component A. According to certain embodiments, the total level of acidic monomers in component A is greater than about 1% by weight, and may be greater than about 3% by weight, or greater than 5% by weight, or greater than about 7% by weight.

[0148] According to certain embodiments, the (meth)acrylic polymer component of the second adhesive composition 470 Component B can be referred to as a low glass transition temperature (Tg) (meth)acrylic polymer component. According to another embodiment, the (meth)acrylic polymer component of the second adhesive composition 470 B is the glass transition temperature (Tg) of the homopolymer of the constituent monomers and its weight percentage Based on this, the material may have a specific Tg as estimated by the Fox equation. The (meth)acrylic polymer component B of the adhesive composition 470 is heated to about 20° C. or less, for example, about 1 Glass transition temperatures below 5°C, or below about 10°C, or below about 5°C, or even below about 0°C The (meth)acrylic polymer component of the second adhesive composition 470 may have a transition temperature (Tg). It is understood that the glass transition temperature of Part B can range between any of the values ​​recited above. The glass transition temperature of the (meth)acrylic polymer component B of the second adhesive composition 470 It will further be appreciated that the temperature can be any value between any of the above values.

[0149] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component B may have a specific molecular weight. For example, the (meth)acrylate of the second adhesive composition 470 may have a specific molecular weight. The acrylic polymer component B has a molecular weight of at least about 200,000 g / mol, e.g., at least at least about 400,000 g / mol or at least about 600,000 g / mol or less at least about 800,000 g / mol or at least about 1,000,000 g / mol or at least about 1,200,000 g / mol or at least about 1,400,000 g / mol or at least about 1,600,000 g / mol or at least about 1,8 00,000 g / mol or at least about 2,000,000 g / mol or less Both about 2,200,000 g / mol or at least about 2,400,000 g / mol or at least about 2,600,000 g / mol or at least about 2,800,00 It may have a molecular weight of 0 g / mol or at least about 3,000,000 g / mol. According to yet another embodiment, the (meth)acrylic polymer component of the second adhesive composition 470 Moiety B is about 20,000,000 g / mol or less, for example, about 15,000,000 g / mol or less. The (meth)acrylic polymer component B of the second adhesive composition 470 may have a molecular weight of It is understood that the molecular weight can be within a range between any of the minimum and maximum values ​​listed above. It will be understood that the proportion of the (meth)acrylic polymer component B of the second adhesive composition 470 It is understood that the molecular weight can be any value between any of the minimum and maximum values ​​listed above. It will be understood.

[0150] According to yet another embodiment, the (meth)acrylic polymer component B may be basic. For purposes of the embodiments described herein, the term "basic" refers to a polymer component. In some embodiments, the compound may be defined as containing a basic monomer in B. The basic monomer is a nitrogen-containing monomer having a primary, secondary, or tertiary amino group. Alternatively, the basic monomer may be a nitrogen-containing monomer having a primary, secondary, or tertiary amide group. According to some embodiments, the total amount of basic monomers in component B may be 0.01 to 0.01. Typical levels are greater than about 1% by weight, or greater than about 3% by weight, or greater than 5% by weight, or greater than about 7% by weight. %, greater than about 9% by weight, or greater than about 11% by weight, or greater than about 13% by weight.

[0151] According to yet another embodiment, the adhesive composition 350 contains a specific content of (meth)acrylic acid. For example, the (meth)acrylic polymer component A in the second adhesive composition 470 may contain The content of the vinyl polymer component A is at least 100% by weight based on the total weight of the second adhesive composition 470. at least about 2.0 wt. %, e.g., at least about 2.5 wt. %, or at least about 3.0 wt. %. %, or at least about 3.5% by weight, or at least about 4.0% by weight, or less At least about 4.5% by weight, or at least about 5.0% by weight, or at least about 5.5% by weight %, or at least about 6.0% by weight, or at least about 6.5% by weight, or less At least about 7.0% by weight, or at least about 7.5% by weight, or at least about 8.5% by weight %, or at least about 9.0% by weight, or at least about 9.5% by weight, or even According to yet another embodiment, the second adhesive composition may comprise at least about 10.0% by weight. The content of (meth)acrylic polymer component A in the second adhesive composition 470 is 0, about 49.0 wt. % or less, for example, about 47.0 wt. % or less, or about 45.0% by weight or less, or about 42.0% by weight or less, or about 40.0% by weight or less, is about 37.0% by weight or less, or about 35.0% by weight or less, or about 32.0% by weight or less; or about 30.0% by weight or less, or about 27.0% by weight or less, or about 25.0% by weight or less or less than about 22.0 wt. %, or less than about 20.0 wt. %, or less than about 17.0 wt. % or less, or about 15.0% by weight or less, or even about 12.0% by weight or less. The content of the (meth)acrylic polymer component A in the second adhesive composition 470 is the above-mentioned maximum It will be understood that the value may be within a range between any of the minimum and maximum values. The content of the (meth)acrylic polymer component A in the second adhesive composition 470 is the above-mentioned maximum It will be understood that the value may be any value between any of the minimum and maximum values. .

[0152] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component A may comprise monomer component a1 and monomer component a2.

[0153] According to a particular embodiment, the monomer component a1 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component a1 is t-butyl acrylate, methyl Methacrylate, ethyl methacrylate, isopropyl methacrylate, n-butyl methacrylate Acrylate, isobutyl methacrylate, s-butyl methacrylate, t-butyl methacrylate Acrylate, Stearyl Methacrylate, Phenyl Methacrylate, Cyclohexyl Acrylate Sil, cyclohexyl methacrylate, isobornyl acrylate, isobornyl methacrylate acrylate, benzyl methacrylate, 3,3,5 trimethylcyclohexyl acrylate , Propyl methacrylate, Adamantyl acrylate, Adamantyl methacrylate , dicyclopentanyl acrylate, dicyclopentanyl methacrylate, norbornyl The polymer may comprise acrylate, styrene, α-methylstyrene, or a mixture thereof. Not limited to these.

[0154] According to yet another embodiment, the monomer component a2 comprises an acidic group and an ethylenically unsaturated group. According to yet another embodiment, the monomer component a2 may be an acidic monomer having the formula: According to yet another embodiment, the monomer component may be an acid-containing (meth)acrylic monomer. Component a2 is acrylic acid, methacrylic acid, itaconic acid, fumaric acid, crotonic acid, citraconic acid Acid, Maleic Acid, Oleic Acid, β-Carboxyethyl (Meth)acrylate, 2-Sulfo Ethyl methacrylate, styrene sulfonic acid, 2-acrylamido-2-methylpropane Selected from, but not limited to, sulfonic acid, vinylphosphonic acid, or mixtures thereof. The copolymer may contain acidic monomers that are not included in the copolymer.

[0155] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component A may contain a specific amount of monomer component a1. For example, the second adhesive composition The content of the monomer component a1 in the (meth)acrylic polymer component A of 470 is at least about 100% by weight of the (meth)acrylic polymer component A of the adhesive composition 470; 40% by weight, e.g., at least about 43% by weight, or at least about 45% by weight, or At least about 48% by weight, or at least about 50% by weight, or at least about 53% by weight %, or at least about 55% by weight, or at least about 58% by weight, or at least about 63% by weight, or at least about 65% by weight, or at least about 68% by weight, or At least about 70% by weight, or at least about 73% by weight, or at least about 75% by weight %, or at least about 78% by weight, or at least about 80% by weight % by weight, or at least about 85% by weight, or at least about 88% by weight, or even less According to yet another embodiment, the second adhesive composition 4 The content of the monomer component a1 in the (meth)acrylic polymer component A of 70 is About 99% by weight or more of the (meth)acrylic polymer component A of the agent composition 470 or less, for example, about 98.5% by weight or less, or about 98% by weight or less, or about 97.5% by weight or less or less, or about 97.0% by weight or less, or about 96.5% by weight, or about 96.0% by weight or less, or about 95.5% by weight or less, or about 95.0% by weight or less. The content of the monomer component a1 in the (meth)acrylic polymer component A of the adhesive composition 470 is , it is understood that the value may be within a range between any of the above minimum and maximum values. The monomers in the (meth)acrylic polymer component A of the second adhesive composition 470 The content of component a1 is any value between any of the above minimum and maximum values. It will be further understood that

[0156] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component A may contain a specific amount of monomer component a2. For example, the second adhesive composition The content of the monomer component a2 in the (meth)acrylic polymer component A of 470 is at least about 100% by weight of the (meth)acrylic polymer component A of the adhesive composition 470; 0.1% by weight, e.g., at least about 0.5% by weight, or at least about 1.0% by weight; or at least about 1.5% by weight, or at least about 2.0% by weight, or at least about 2.5% by weight, or at least about 3.0% by weight, or at least about 3.5% by weight; or at least about 4.0% by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or at least about 5.5% by weight, or at least about 6.0% by weight; Or it can be at least about 6.5% by weight, or even at least about 7.0% by weight. According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 The content of the monomer component a2 in the component A is determined by the (meth)acrylic About 20.0 wt. % or less, for example, about 19.5 wt. % based on the total weight of the system polymer component A or less, or about 19.0% by weight or less, or about 18.5% by weight or less, or about 18.0% by weight or less % by weight or less, or about 17.5% by weight or less, or about 17.0% by weight or less, or about 16. 5% by weight or less, or about 16.0% by weight or less, or about 15.5% by weight or less, or about 1 5.0% by weight or less, or about 14.5% by weight or less, or about 14.0% by weight or less, or about 13.5% by weight or less, or about 13.0% by weight or less, or about 12.5% ​​by weight or less, or about 12.0 wt % or less of the (meth)acrylic based second adhesive composition 470. The content of the monomer component a2 in the polymer component A is the minimum value or the maximum value mentioned above. It will be understood that the viscosity of the second adhesive composition 470 can be within any range. The content of the monomer component a2 in the (meth)acrylic polymer component A is the minimum value and It will be further understood that the maximum value may be any value between any of the maximum values.

[0157] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component A may further comprise monomer component a3. According to a particular embodiment, the monomer component a4 Component a3 can be different from both monomer component a1 and monomer component a2.

[0158] According to a particular embodiment, monomer component a3 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component a3 is a hydroxyl-containing (meth)acrylic and acrylamide. According to a particular embodiment, the monomer component a3 is 2-hydroxyethyl acrylate. acrylate, 2-hydroxypropyl acrylate, 2-hydroxybutyl acrylate, 2- Hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxy N-butyl methacrylate, N-methyl acrylamide, N-ethyl acrylamide, N -Hexyl acrylamide, N-octylacrylamide, t-butyl acrylamide, N,N-dimethylacrylamide, N,N-dimethylmethacrylamide, N,N-diethyl acrylamide, N,N-diethylmethacrylamide, N,N-dimethylaminoethyl Methacrylate, N,N-dimethylaminopropyl methacrylate, N,N-dimethylamino Aminoethyl acrylate, N,N-dimethylaminopropyl acrylate, B-(dimethylaminopropyl) (amino)ethyl acrylate, dimethylaminoethyl acrylamide, N-vinylpyrrolidone N-vinylcaprolactam, acrylamide, n-hydroxymethyl acrylamide amide, n-hydroxyethyl acrylamide, or a mixture thereof. , but not limited to these.

[0159] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component A may contain a specific amount of monomer component a3. For example, the second adhesive composition The content of the monomer component a3 in the (meth)acrylic polymer component A of 470 is at least about 100% by weight of the (meth)acrylic polymer component A of the adhesive composition 470; 0.1% by weight, e.g., at least about 0.5% by weight, or at least about 1.0% by weight; or at least about 1.5% by weight, or at least about 2.0% by weight, or at least about 2.5% by weight, or at least about 3.0% by weight, or at least about 3.5% by weight; or at least about 4.0% by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or at least about 5.5% by weight, or at least about 6.0% by weight; Or it can be at least about 6.5% by weight, or even at least about 7.0% by weight. According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 The content of the monomer component a3 in the component A is determined by the (meth)acrylic about 60% by weight or less, for example, about 55% by weight or less, based on the total weight of the base polymer component A; or about 50% by weight or less, or about 45% by weight or less, or about 40% by weight or less, or about 3 5% by weight or less, or about 30% by weight or less, or about 25% by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less, or about 13% by weight or less, The (meth)acrylic poly(methacrylic acid) of the second adhesive composition 470 may be about 10% by weight or less. The content of the monomer component a3 in the monomer component A is either of the minimum value and the maximum value described above. It will be understood that the thickness of the second adhesive composition 470 may be within a range between 1000 and 1500 mm. p) The content of the monomer component a3 in the acrylic polymer component A is the minimum and maximum values ​​mentioned above. It will further be understood that the value may be any value between any of the above values.

[0160] According to yet another embodiment, the second adhesive composition 470 comprises a specific content of (meta) The second adhesive composition 470 may contain an acrylic polymer component B. For example, the (meth)acrylic polymer component B may contain an acrylic polymer component B. The content of the acrylic polymer component B is at least 100% by weight based on the total weight of the second adhesive composition 470. at least about 51% by weight, e.g., at least about 53% by weight, or at least about 55% by weight , or at least about 58% by weight, or at least about 60% by weight, or at least about 63% by weight, or at least about 65% by weight, or at least about 68% by weight, or less at least about 70% by weight, or at least about 73% by weight, or even at least about 75% by weight According to yet another embodiment, the (meth)acrylate in the second adhesive composition 470 may be % by weight. The content of the acrylic polymer component B is, relative to the total weight of the second adhesive composition 470, About 98% by weight or less, for example, about 95% by weight or less, or about 92% by weight or less, or about 90% by weight or less % by weight or less, or about 87% by weight or less, or about 85% by weight or less, or about 82% by weight; Or even about 80% by weight or less. The content of the vinyl polymer component B is within the range between any of the above minimum and maximum values. It will be understood that the (meth)acrylic acid content of the second adhesive composition 470 may be within the range. The content of the vinyl polymer component B may be any value between the minimum and maximum values ​​above. It will be understood that the value of the variable may be any value.

[0161] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component B may comprise monomer component b1 and monomer component b2.

[0162] According to a particular embodiment, the monomer component b1 is a C1-C24 acrylic ester. According to yet another embodiment, the alkyl group of component b1 may be linear, one or more branched According to yet another embodiment, the alkyl group may be branched or cyclic, with the moiety: Methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, 2-pentyl hexyl, heptyl, octyl, isooctyl, 2-ethylhexyl, tert-octyl Octyl, nonyl, decyl, 2-propylheptyl, undecyl, tridecyl acrylate , (2-isopropyl-5-methyl)hexyl, tetradecyl, hexadecyl, octadecy alkyl, branched alkyl having 16 to 22 carbon atoms and at least two branching sites phenyl, benzyl, cyclohexyl, isobornyl, adomantyl, 3,3,5 trimethylcyclohexyl, norbornyl or mixtures thereof. According to certain embodiments, the alkyl group may be, but is not limited to, butyl ... The alkyl esters may include, but are not limited to, those selected from: 2-octyl, 2-isooctyl, and 2-ethylhexyl. It will not be done.

[0163] According to yet another embodiment, the monomer component b2 is a hydroxyl-containing (meth)acrylic acid. and nitrogen-containing monomers having a primary, secondary, or tertiary amino group, or or from the group consisting of nitrogen-containing monomers having a primary, secondary, or tertiary amide group According to a particular embodiment, the ethylenically unsaturated functional monomer may be selected. Mer component b2 is 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate acrylate, 2-hydroxybutyl acrylate, 2-hydroxyethyl methacrylate, 2- Hydroxypropyl methacrylate, 2-hydroxybutyl methacrylate, N-methyl Acrylamide, N-ethylacrylamide, N-hexylacrylamide, N-octyl N,N-dimethylacrylamide, N, N-dimethylmethacrylamide, N,N-diethylacrylamide, N,N-diethylmethacrylamide N,N-dimethylaminoethyl methacrylate, N,N-dimethylaminoethyl methacrylate N,N-dimethylaminoethyl acrylate, N,N-dimethylaminopropyl methacrylate ethylaminopropyl acrylate, B-(dimethylamido)ethyl acrylate, dimethicone Aminoethyl acrylamide, N-vinylpyrrolidone; N-vinylcaprolactam, Acrylamide, n-hydroxymethyl acrylamide, n-hydroxyethyl acrylamide The hydroxybenzoate may be selected from, but is not limited to, hydroxybenzoates ...

[0164] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component B may contain a specific amount of monomer component b1. For example, the second adhesive composition The content of the monomer component b1 in the (meth)acrylic polymer component B of 470 is at least about 100% by weight of the (meth)acrylic polymer component B of the adhesive composition 470; 40% by weight, e.g., at least about 43% by weight, or at least about 45% by weight, or At least about 48% by weight, or at least about 50% by weight, or at least about 53% by weight %, or at least about 55% by weight, or at least about 58% by weight, or at least about 63% by weight, or at least about 65% by weight, or at least about 68% by weight, or At least about 70% by weight, or at least about 73% by weight, or at least about 75% by weight %, or at least about 78% by weight, or at least about 80% by weight % by weight, or at least about 85% by weight, or at least about 88% by weight, or even less According to yet another embodiment, the second adhesive composition 4 The content of the monomer component b1 in the (meth)acrylic polymer component B of 70 is About 99% by weight or more of the (meth)acrylic polymer component B of the agent composition 470 or less, for example, about 98.5% by weight or less, or about 98% by weight or less, or about 97.5% by weight or less or less, or about 97.0% by weight or less, or about 96.5% by weight, or about 96.0% by weight or less, or about 95.5% by weight or less, or about 95.0% by weight or less. The content of the monomer component b1 in the (meth)acrylic polymer component B of the adhesive composition 470 is , it is understood that the value may be within a range between any of the above minimum and maximum values. The monomers in the (meth)acrylic polymer component B of the second adhesive composition 470 The content of component b1 is any value between any of the above minimum and maximum values. It will be further understood that

[0165] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component B may contain a specific amount of monomer component b2. For example, the second adhesive composition The content of the monomer component b2 in the (meth)acrylic polymer component B of 470 is at least about 100% by weight of the (meth)acrylic polymer component B of the adhesive composition 470; 1% by weight, for example, at least about 2% by weight, or at least about 3% by weight, or less At least about 4% by weight, or at least about 5% by weight, or at least about 6% by weight, or at least about 4% by weight. at least about 7% by weight, or at least about 8% by weight, or at least about 9% by weight, is at least about 10% by weight, or at least about 11% by weight, or at least about 12% by weight % by weight, or at least about 13% by weight, or at least about 14% by weight, or even less According to yet another embodiment, the second adhesive composition 4 The content of the monomer component b2 in the (meth)acrylic polymer component B of 70 is About 60% by weight or more of the (meth)acrylic polymer component B of the agent composition 470 or less, for example, about 57% by weight or less, or about 55% by weight or less, or about 52% by weight or less, or about 50% by weight or less, or about 47% by weight or less, or about 45% by weight or less, or about 4 2% by weight or less, or about 40% by weight or less, or about 37% by weight or less, or about 35% by weight or less, or about 32% by weight or less, or about 30% by weight or less, or about 27% by weight or less, or about 25% by weight or less, or about 23% by weight or less, or about 20% by weight or less. Monomer component b2 in (meth)acrylic polymer component B of second adhesive composition 470 It is understood that the content may be within a range between any of the above minimum and maximum values. It will be understood that the (meth)acrylic polymer component B of the second adhesive composition 470 The content of the monomer component b2 may be any value between the minimum and maximum values ​​above. It will be further understood that the value may be

[0166] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component B may further comprise monomer component b3. According to a particular embodiment, the monomer component b3 Moiety b3 can be different from both monomer component b1 and monomer component b2.

[0167] According to a particular embodiment, monomer component b3 may be an ethylenically unsaturated monomer According to yet another embodiment, the monomer component b3 has a hydroxyl group and an ethylenic It may include hydroxy-containing acrylic ester monomers having unsaturated groups. According to the embodiment, the monomer component b3 is a nitrogen-containing copolymer having a primary, secondary or tertiary amino group. Monomers containing primary, secondary, or tertiary amide groups and ethylenically unsaturated groups According to yet another embodiment, the monomer component b3 may comprise a nitrogen-containing monomer. According to a particular embodiment, the monomer component b2 may comprise a 2-hydroxyl group. Diethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxybutyl acrylate Acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate acrylate, 2-hydroxybutyl methacrylate, N-methylacrylamide, N-ethyl acrylate Acrylamide, N-hexyl acrylamide, N-octylacrylamide, t-butyl Acrylamide, N,N-dimethylacrylamide, N,N-dimethylmethacrylamide , N,N-diethylacrylamide, N,N-diethylmethacrylamide, N,N-dimethyl N,N-dimethylaminoethyl methacrylate, N,N-dimethylaminopropyl methacrylate ,N-Dimethylaminoethyl acrylate, N,N-Dimethylaminopropyl acrylate , B-(dimethylamido)ethyl acrylate, dimethylaminoethyl acrylamide , N-vinylpyrrolidone; N-vinylcaprolactam, acrylamide, n-hydroxy Methyl acrylamide, n-hydroxyethyl acrylamide, or a mixture thereof The compound may be selected from, but is not limited to, the following:

[0168] According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 Component B may contain a specific amount of monomer component b3. For example, the second adhesive composition The content of the monomer component b3 in the (meth)acrylic polymer component B of 470 is at least about 100% by weight of the (meth)acrylic polymer component B of the adhesive composition 470; 0.1% by weight, e.g., at least about 0.5% by weight, or at least about 1.0% by weight; or at least about 1.5% by weight, or at least about 2.0% by weight, or at least about 2.5% by weight, or at least about 3.0% by weight, or at least about 3.5% by weight; or at least about 4.0% by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or at least about 5.5% by weight, or at least about 6.0% by weight; Or it can be at least about 6.5% by weight, or even at least about 7.0% by weight. According to yet another embodiment, the (meth)acrylic polymer of the second adhesive composition 470 The content of the monomer component b3 in the component B is determined by the (meth)acrylic about 60% by weight or less, for example, about 55% by weight or less, based on the total weight of the system polymer component B; or about 50% by weight or less, or about 45% by weight or less, or about 40% by weight or less, or about 3 5% by weight or less, or about 30% by weight or less, or about 25% by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less, or about 13% by weight or less, The (meth)acrylic poly(methacrylic acid) of the second adhesive composition 470 may be about 10% by weight or less. The content of the monomer component b3 in the monomer component B is either of the minimum value and the maximum value described above. It will be understood that the thickness of the second adhesive composition 470 may be within a range between 1000 and 1500 mm. p) The content of the monomer component b3 in the acrylic polymer component B is the minimum and maximum values ​​described above. It will further be understood that the value may be any value between any of the above values.

[0169] According to certain embodiments, the tackifier component of the second adhesive composition 470 is selected from the group consisting of C5, C9 , C5 / C9, dicyclopentadiene, terpene, or hydrogenated resins thereof, or It may include combinations of these.

[0170] According to yet another embodiment, the second adhesive composition 470 comprises a specific content of tackifying agent. For example, the content of the tackifier component in the second adhesive composition 470 may be At least about 0.1 wt. % based on the total weight of the second adhesive composition 470, for example, at least about at least about 0.5% by weight, or at least about 1.0% by weight, or at least about 1.5% by weight % by weight, or at least about 2.0%, or at least about 2.5%, or less at least about 3.0 wt. %, or at least about 3.5 wt. %, or at least about 4.0 wt. % % by weight, or at least about 4.5% by weight, or at least about 5.0% by weight, or less At least about 5.5% by weight, or at least about 6.0% by weight, or at least about 6.5% by weight % by weight, or even at least about 7.0% by weight. The content of the tackifier component of the second adhesive composition 470 in the second adhesive composition 470 is , about 30% by weight or more based on the total weight of the second adhesive composition 470 of the first adhesive layer 340 or less, for example, about 25% by weight or less, or about 20% by weight or less, or about 18% by weight or less, or about 15% by weight or less, or about 13% by weight or about 10% by weight or less. The content of the tackifier component in the adhesive composition 470 is within the range of the above minimum and maximum values. It will be understood that the second adhesive composition 47 may be in the range of any of the above. The content of the tackifier component in the 0 may be any value between the minimum and maximum values ​​above. It will further be understood that the value of the suffix may be any value.

[0171] Many different aspects and embodiments are possible. After reading this specification, those skilled in the art will be able to understand those aspects and implementations. It will be understood that the embodiments are illustrative only and do not limit the scope of the present invention. Any one or more of the embodiments listed below may be followed.

[0172] Embodiment 1. An adhesive composition comprising at least about 2% by weight of the total adhesive composition. % by weight and 49% by weight or less of (meth)acrylic polymer component A and the total weight of the adhesive composition at least about 51% by weight of a (meth)acrylic polymer component B; and an adhesive At least about 0.1 wt. % and no more than about 30 wt. % tackifying agent, based on the total weight of the composition and a (meth)acrylic polymer component A, which is acidic and contains at least The (meth)acrylic polymer component B has a glass transition temperature (Tg) of about 40°C. and having a glass transition temperature (Tg) of about 20°C or less.

[0173] Embodiment 2. An adhesive composition comprising at least about 2% by weight of the total adhesive composition. % by weight and 49% by weight or less of (meth)acrylic polymer component A and the total weight of the adhesive composition at least about 51% by weight of a (meth)acrylic polymer component B; and an adhesive At least about 0.1 wt. % and no more than about 30 wt. % tackifying agent, based on the total weight of the composition and (meth)acrylic polymer component A includes a reaction product of a polymerizable material. The reaction product of the polymerizable material is, based on the total weight of the (meth)acrylic polymer component A, At least about 40% by weight and not more than about 99% by weight of monomer component a1, ethylene a monomer component a1, which is a divalently unsaturated functional monomer; and a (meth)acrylic polymer component at least about 0.1% by weight and not more than about 20% by weight of a monomer component based on the total weight of B; a2, which is an acidic monomer having an acidic group and an ethylenically unsaturated group; and component a2, wherein the (meth)acrylic polymer component B is basic. thing.

[0174] Embodiment 3. An adhesive composition comprising at least about 2% by weight of the total adhesive composition. % by weight and 49% by weight or less of (meth)acrylic polymer component A and the total weight of the adhesive composition at least about 51% by weight of a (meth)acrylic polymer component B; and an adhesive At least about 0.1 wt. % and no more than about 30 wt. % tackifying agent, based on the total weight of the composition and (meth)acrylic polymer component A includes a reaction product of a polymerizable material. The reaction product of the polymerizable material is, based on the total weight of the (meth)acrylic polymer component A, At least about 40% by weight and not more than about 99% by weight of monomer component a1, ethylene The total amount of the monomer component a1, which is a non-saturated monomer, and the (meth)acrylic polymer component A is 0.1% by weight and up to about 20% by weight of monomer component a2, and monomer component a2, which is an acidic monomer having a group and an ethylenically unsaturated group. (Meth)acrylic polymer component B includes a reaction product of a polymerizable material, The reaction product is at least about 40% by weight of the (meth)acrylic polymer component B. % by weight and up to about 99% by weight of monomer component b1, based on the total weight of the monomer component b1 and the (meth)acrylic polymer component B, , at least about 1% by weight and not more than about 60% by weight of monomer component b2, Silyl-containing (meth)acrylic monomers, nitrogen-containing monomers with primary, secondary, or tertiary amino groups or nitrogen-containing monomers having a primary, secondary, or tertiary amide group. and a monomer component b2, which is an ethylenically unsaturated functional monomer selected from the group consisting of composition.

[0175] Embodiment 4. The (meth)acrylic polymer component A has a molecular weight of at least about 5,000 g / mo 4. The adhesive composition of any one of embodiments 1, 2, and 3, having a molecular weight of 1.

[0176] Embodiment 5. The (meth)acrylic polymer component A has a glass transition temperature of at least about 40° C. 4. The adhesive composition of any one of embodiments 2 and 3, having a temperature (Tg).

[0177] Embodiment 6. (Meth)acrylic polymer component B has a glass transition temperature (Tg) of about 20°C or less ( 6. The adhesive composition of any one of embodiments 2, 3, and 5, having a Tg.

[0178] Embodiment 7. The (meth)acrylic polymer component A comprises the reaction product of a polymerizable material; The reaction product of the polymerizable material is a small amount relative to the total weight of the (meth)acrylic polymer component A. at least about 40% by weight and not more than about 99% by weight of monomer component a1, The total weight of the saturated monomer component a1 and the (meth)acrylic polymer component A and the monomer component a2 is at least about 0.1% by weight and not more than about 20% by weight relative to the total weight of the monomer component a1. and a monomer component a2, which is an acidic monomer having an acidic group and an ethylenically unsaturated group. 2. The adhesive composition of embodiment 1, comprising:

[0179] Embodiment 8. An embodiment in which the monomer component a2 is an acid-containing (meth)acrylic monomer. 8. The adhesive composition according to any one of 2, 3, and 7.

[0180] Embodiment 9. The (meth)acrylic polymer component B comprises the reaction product of a polymerizable material; The reaction product of the polymerizable material is a small amount relative to the total weight of the (meth)acrylic polymer component B. at most about 40% by weight and not more than about 99% by weight of monomer component b1, The total amount of the monomer component b1, which is an acrylic ester, and the (meth)acrylic polymer component B is and at least about 1% by weight and not more than about 60% by weight of monomer component b2. hydroxyl-containing (meth)acrylic monomers, primary, secondary, or tertiary amino groups or a nitrogen-containing monomer having a primary, secondary, or tertiary amide group. and a monomer component b2, which is an ethylenically unsaturated functional monomer selected from the group consisting of ethylenically unsaturated monomers, 3. The adhesive composition of any one of embodiments 1 and 2, comprising:

[0181] Embodiment 10: The (meth)acrylic polymer component A is a (meth)acrylic polymer component At least about 0.1% by weight and not more than about 60% by weight of the monomer component, based on the total weight of component A The composition further comprises a monomer component a3, wherein the monomer component a3 is a hydroxyl-containing (meth)acrylic acid ester. an ethylenically unsaturated functional monomer selected from the group consisting of ethylene glycol, propylene glycol, propylene glycol esters, propylene glycol diols, propylene glycol ester ... 8. The adhesive composition according to any one of aspects 2, 3, and 7.

[0182] Embodiment 11: The (meth)acrylic polymer component B is a (meth)acrylic polymer component At least about 0.1% by weight and not more than about 60% by weight of monomer components based on the total weight of component B The monomer component b3 is an ethylenically unsaturated monomer, and the monomer Embodiment 3 and embodiment 4, wherein component b3 is different from both monomer component b1 and monomer component b2. 10. The adhesive composition according to any one of claims 1 to 9.

[0183] Embodiment 12. The monomer component b3 is: i. an acid having an acid group and an ethylenically unsaturated group hydroxyl-containing monomers having a hydroxyl group and an ethylenically unsaturated group; acrylic acid ester monomers, iii. nitrogen-containing monomers having primary, secondary, or tertiary amino groups Monomers containing primary, secondary, or tertiary amide groups and ethylenically unsaturated groups a nitrogen-containing monomer, iv. a vinyl monomer, or v. a combination thereof, 12. The adhesive composition of embodiment 11.

[0184] Embodiment 13. The tackifier component is selected from the group consisting of C5, C9, C5 / C9, dicyclopentadiene, 1. A method for producing a terpene-based ... 4. The adhesive composition according to any one of claims 1 to 3.

[0185] Embodiment 14. A method of forming an adhesive composition, comprising: (Meth)acrylic polymer component A and unpolymerized pre-adhesive (meth)acrylic providing a pre-adhesive mixture comprising a system polymer component B and a tackifier-forming component; mixing a pre-adhesive mixture; and polymerizing the pre-adhesive mixture to form an adhesive composition. and

[0186] Embodiment 15. The pre-adhesive mixture comprises at least about 2% by weight and up to 49% by weight of a pre-adhesive (meth)acrylic polymer component A; At least about 51% by weight of the pre-adhesive (meth)acrylic acid, based on the total weight of the adhesive mixture. and at least about 0.1 wt. % of the total weight of the pre-adhesive mixture. and about 30% by weight or less of a tackifier component, Polymer component A is acidic and has a glass transition temperature (Tg) of at least about 40°C. The pre-adhesive (meth)acrylic polymer component B is basic and has a temperature of about 20° C. or less. 15. The method of embodiment 14, wherein the polymer has a glass transition temperature (Tg).

[0187] Embodiment 16. The pre-adhesive mixture comprises at least about 2% by weight and up to 49% by weight of a pre-adhesive (meth)acrylic polymer component A; At least about 51% by weight of the pre-adhesive (meth)acrylic acid, based on the total weight of the adhesive mixture. and at least about 0.1 wt. % of the total weight of the pre-adhesive mixture. and about 30% by weight or less of a tackifier component, Polymer component A comprises a reaction product of a polymerizable material, and the reaction product of the polymerizable material is a pre-adhesive. at least about 40% by weight of the (meth)acrylic polymer component A, based on the total weight of the component A; about 99% by weight or less of monomer component a1, which is an ethylenically unsaturated functional monomer , based on the total weight of the monomer component a1 and the pre-adhesive (meth)acrylic polymer component A , at least about 0.1% by weight and not more than about 20% by weight of monomer component a2, and monomer component a2, which is an acidic monomer having a group and an ethylenically unsaturated group. 15. The method of claim 14, wherein the pre-adhesive (meth)acrylic polymer component B is basic. How to do it.

[0188] Embodiment 17. The pre-adhesive mixture comprises at least about 2% by weight and up to 49% by weight of a pre-adhesive (meth)acrylic polymer component A; At least about 51% by weight of the pre-adhesive (meth)acrylic acid, based on the total weight of the adhesive mixture. and at least about 0.1 wt. % of the total weight of the pre-adhesive mixture. and about 30% by weight or less of a tackifier component, Polymer component A comprises a reaction product of a polymerizable material, and the reaction product of the polymerizable material is a pre-adhesive. at least about 40% by weight of the (meth)acrylic polymer component A, based on the total weight of the component A; about 99% by weight or less of pre-adhesive monomer component a1, which is an ethylenically unsaturated monomer; A pre-adhesive monomer component a1 and a pre-adhesive (meth)acrylic polymer component A 0.1% by weight and up to about 20% by weight of pre-adhesive monomer component a2, based on the total weight Monomer component a is an acidic monomer having an acidic group and an ethylenically unsaturated group. 2, and the pre-adhesive (meth)acrylic polymer component B is a reaction product of a polymerizable material. The reaction product of the polymerizable material is a pre-adhesive (meth)acrylic polymer component B. At least about 40% by weight and not more than about 99% by weight of the pre-adhesive monomer, based on the total weight Component b1, a pre-adhesive monomer component b1 being a C1 to C24 acrylic ester and at least about 1 part by weight based on the total weight of the pre-adhesive (meth)acrylic polymer component B. % by weight and up to about 60% by weight of pre-adhesive monomer component b2, (Meth)acrylic monomers, nitrogen-containing monomers with primary, secondary, or tertiary amino groups or a nitrogen-containing monomer having a primary, secondary, or tertiary amide group and a pre-adhesive monomer component b2, which is an ethylenically unsaturated functional monomer. 15. The method of claim 14.

[0189] Embodiment 18. The pre-adhesive (meth)acrylic polymer component A has a viscosity of at least about 5.0 MPa. 18. The compound according to any one of embodiments 15, 16, and 17, having a molecular weight of 0.00 g / mol. How to post.

[0190] Embodiment 19. The pre-adhesive (meth)acrylic polymer component A is heat-resistant to at least about 40°C. 18. The method of any one of embodiments 16 and 17, having a glass transition temperature (Tg) of Law.

[0191] Embodiment 20: The pre-adhesive (meth)acrylic polymer component B is a glass 18. The method of any one of embodiments 16 and 17, having a transition temperature (Tg).

[0192] Embodiment 21. Pre-adhesive (meth)acrylic polymer component A is a reaction product of a polymerizable material the reaction product of the polymerizable material is a pre-adhesive (meth)acrylic polymer component A at least about 40% by weight and not more than about 99% by weight of pre-adhesive monomers, based on the total weight of the - component a1, a pre-adhesive monomer component a1 which is an ethylenically unsaturated monomer; , at least about 0.1 based on the total weight of the pre-adhesive (meth)acrylic polymer component A % by weight and up to about 20% by weight of pre-adhesive monomer component a2, containing acidic and ethylene groups and a pre-adhesive monomer component a2, which is an acidic monomer having an ethylenically unsaturated group. 16. The method of embodiment 15.

[0193] Embodiment 22. An embodiment in which the monomer component a2 is an acid-containing (meth)acrylic monomer. 22. The method of any one of aspects 16, 17, and 21.

[0194] Embodiment 23: Pre-adhesive (meth)acrylic polymer component B is a reaction product of a polymerizable material The reaction product of the polymerizable material comprises a pre-adhesive (meth)acrylic polymer component B. at least about 40% by weight and not more than about 99% by weight of pre-adhesive monomers, based on the total weight of the - Component b1 is a pre-adhesive monomer component b which is a C1 to C24 acrylic ester 1 and at least about 1 based on the total weight of the pre-adhesive (meth)acrylic polymer component B. % by weight and up to about 60% by weight of pre-adhesive monomer component b2, (Meth)acrylic monomers, nitrogen-containing monomers with primary, secondary, or tertiary amino groups or a nitrogen-containing monomer having a primary, secondary, or tertiary amide group. and a pre-adhesive monomer component b2, which is an ethylenically unsaturated functional monomer having 17. The method according to any one of embodiments 15 and 16.

[0195] Embodiment 24. Pre-adhesive (meth)acrylic polymer component A is a pre-adhesive (meth)acrylic polymer component B. At least about 0.1% by weight and about 60% by weight based on the total weight of acrylic polymer component A % by weight or less of a pre-adhesive monomer component a3, wherein the pre-adhesive monomer component a3 is an ethyl group selected from hydroxyl-containing (meth)acrylic acid esters or acrylamides; The method of any one of embodiments 17 and 23, wherein the carboxylic acid is a carboxylic acid unsaturated functional monomer. Law.

[0196] Embodiment 25. The pre-adhesive (meth)acrylic polymer component B is a pre-adhesive (meth)acrylic polymer component B. At least about 0.1 wt. % and about 60 wt. % based on the total weight of acrylic polymer component B % by weight or less of a pre-adhesive monomer component b3, wherein the pre-adhesive monomer component b3 is The pre-adhesive monomer component b3 is an ethylenically unsaturated monomer. Embodiments 17 and 23, which are different from both component b1 and pre-adhesive monomer component b2 10. The method according to claim 9, wherein

[0197] Embodiment 26. The pre-adhesive monomer component b3 comprises: i. an acidic group and an ethylenically unsaturated group ii. an acidic monomer having a hydroxyl group and an ethylenically unsaturated group; iii. acrylate monomers containing primary, secondary, or tertiary amino groups; Nitrogen-containing monomers having a primary, secondary, or tertiary amide group and an ethylenically unsaturated a nitrogen-containing monomer having a hydroxyl group, iv. a vinyl monomer, or v. a combination thereof. 26. The adhesive composition of embodiment 25, comprising:

[0198] Embodiment 27. The adhesive composition comprises at least about 2% by weight of the adhesive composition based on the total weight of the adhesive composition. % and 49% by weight or less of the (meth)acrylic polymer component A, and at least about 51% by weight of a (meth)acrylic polymer component B, and an adhesive composition At least about 0.1 wt. % and not more than about 30 wt. % of a tackifier component, based on the total weight of the composition. and (meth)acrylic polymer component A is acidic and has a molecular weight of at least about 4 0°C, and (meth)acrylic polymer component B is basic. and has a glass transition temperature (Tg) of about 20° C. or less. .

[0199] Embodiment 28. The adhesive composition comprises at least about 2% by weight of the adhesive composition based on the total weight of the adhesive composition. % and 49% by weight or less of the (meth)acrylic polymer component A, and at least about 51% by weight of a (meth)acrylic polymer component B, and an adhesive composition At least about 0.1 wt. % and not more than about 30 wt. % of a tackifier component, based on the total weight of the composition. component A, wherein the (meth)acrylic polymer component A comprises a reaction product of a polymerizable material; The reaction product of the polymerizable material is a small amount relative to the total weight of the (meth)acrylic polymer component A. at least about 40% by weight and not more than about 99% by weight of monomer component a1, A mixture of a saturated functional monomer, a monomer component a1, and a (meth)acrylic polymer component B. at least about 0.1% by weight and not more than about 20% by weight of monomer component a2, based on the total weight; the monomer component is an acidic monomer having an acidic group and an ethylenically unsaturated group. a2, and the (meth)acrylic polymer component B is basic. The method described.

[0200] Embodiment 29. The adhesive composition comprises at least about 2% by weight of the adhesive composition based on the total weight of the adhesive composition. % and 49% by weight or less of the (meth)acrylic polymer component A, and at least about 51% by weight of a (meth)acrylic polymer component B, and an adhesive composition At least about 0.1 wt. % and not more than about 30 wt. % of a tackifier component, based on the total weight of the composition. component A, wherein the (meth)acrylic polymer component A comprises a reaction product of a polymerizable material; The reaction product of the polymerizable material is a small amount relative to the total weight of the (meth)acrylic polymer component A. at least about 40% by weight and not more than about 99% by weight of monomer component a1, The total weight of the saturated monomer component a1 and the (meth)acrylic polymer component A 0.1% by weight and about 20% by weight or less of monomer component a2, and a monomer component a2, which is an acidic monomer having an ethylenically unsaturated group, The meth)acrylic polymer component B comprises a reaction product of a polymerizable material, and The product is at least about 40% by weight of (meth)acrylic polymer component B based on the total weight of (meth)acrylic polymer component B. % and about 99% by weight or less of monomer component b1, C1 to C24 acrylic ester a small amount relative to the total weight of the monomer component b1 and the (meth)acrylic polymer component B. at least about 1% by weight and up to about 60% by weight of monomer component b2, (Meth)acrylic monomers, nitrogen-containing monomers with primary, secondary, or tertiary amino groups or nitrogen-containing monomers having a primary, secondary, or tertiary amide group. and monomer component b2, which is an ethylenically unsaturated functional monomer 4. The method described in 4.

[0201] Embodiment 30. The (meth)acrylic polymer component A has a mass of at least about 5,000 g / m 30. The method of any one of embodiments 27, 28, and 29, wherein the hydroxybenzoate has a molecular weight of 0.5 wt.

[0202] Embodiment 31. The (meth)acrylic polymer component A has a glass transition temperature of at least about 40°C. 30. The method of any one of embodiments 28 and 29, having a transition temperature (Tg).

[0203] Embodiment 32. (Meth)acrylic polymer component B has a glass transition temperature of about 20°C or less. 30. The method of any one of embodiments 28 and 29, having a Tg.

[0204] Embodiment 33. The (meth)acrylic polymer component A comprises a reaction product of a polymerizable material. The reaction product of the polymerizable material is in a small amount relative to the total weight of the (meth)acrylic polymer component A. at least about 40% by weight and up to about 99% by weight of monomer component a1, The total weight of the unsaturated monomer component a1 and the (meth)acrylic polymer component A is and at least about 0.1% by weight and not more than about 20% by weight of monomer component a2. Monomer component a2 is an acidic monomer having an acidic group and an ethylenically unsaturated group. 28. The method of embodiment 27, comprising:

[0205] Embodiment 34. The (meth)acrylic polymer component B comprises a reaction product of a polymerizable material. The reaction product of the polymerizable material is in a small amount relative to the total weight of the (meth)acrylic polymer component B. At least about 40% by weight and not more than about 99% by weight of monomer component b1, 4. A monomer component b1, which is an acrylic ester, and a (meth)acrylic polymer component B At least about 1% by weight and not more than about 60% by weight of monomer component b2, based on the total weight. hydroxyl-containing (meth)acrylic monomers, primary, secondary, or tertiary amino groups or a nitrogen-containing monomer having a primary, secondary, or tertiary amide group monomer component b2, which is an ethylenically unsaturated functional monomer selected from the group consisting of: 29. The method of any one of embodiments 27 and 28, comprising:

[0206] Embodiment 35: The (meth)acrylic polymer component A is a (meth)acrylic polymer component At least about 0.1% by weight and not more than about 60% by weight of the monomer component, based on the total weight of component A The composition further comprises a monomer component a3, wherein the monomer component a3 is a hydroxyl-containing (meth)acrylic acid ester. an ethylenically unsaturated functional monomer selected from the group consisting of ethylene glycol, propylene glycol, propylene glycol esters, propylene glycol diols, propylene glycol ester ... 30. The method according to any one of aspects 28 and 29.

[0207] Embodiment 36: The (meth)acrylic polymer component B is a (meth)acrylic polymer component At least about 0.1% by weight and not more than about 60% by weight of monomer components based on the total weight of component B The monomer component b3 is an ethylenically unsaturated monomer, and the monomer Embodiment 29, wherein component b3 is different from both monomer component b1 and monomer component b2. and 34.

[0208] Embodiment 37. The monomer component b3 is: i. an acid having an acid group and an ethylenically unsaturated group hydroxyl-containing monomers having a hydroxyl group and an ethylenically unsaturated group; acrylic acid ester monomers, iii. nitrogen-containing monomers having primary, secondary, or tertiary amino groups Monomers containing primary, secondary, or tertiary amide groups and ethylenically unsaturated groups a nitrogen-containing monomer, iv. a vinyl monomer, or v. a combination thereof, 37. The adhesive composition of embodiment 36.

[0209] Embodiment 38. A single layer foam tape comprising hollow microspheres in the adhesive composition. and a foam core, wherein the adhesive composition is at least about 2 times as thick as the adhesive composition by weight. % by weight and 49% by weight or less of (meth)acrylic polymer component A and the total weight of the adhesive composition and at least about 51% by weight of the (meth)acrylic polymer component B, based on the amount of the adhesive composition. At least about 0.1 wt. % and no more than about 30 wt. % tackifier, based on the total weight of the composition and (meth)acrylic polymer component A is acidic and has a molecular weight of at least about The (meth)acrylic polymer component B has a glass transition temperature (Tg) of 40°C, and and having a glass transition temperature (Tg) of about 20°C or less.

[0210] Embodiment 39. A single layer foam tape comprising hollow microspheres within the adhesive composition. and a foam core, wherein the adhesive composition is at least about 2 times as thick as the adhesive composition by weight. % by weight and 49% by weight or less of (meth)acrylic polymer component A and the total weight of the adhesive composition and at least about 51% by weight of the (meth)acrylic polymer component B, based on the amount of the adhesive composition. At least about 0.1 wt. % and no more than about 30 wt. % tackifier, based on the total weight of the composition and (meth)acrylic polymer component A comprises a reaction product of a polymerizable material. The reaction product of the polymerizable material is in a small amount relative to the total weight of the (meth)acrylic polymer component A. at least about 40% by weight and up to about 99% by weight of monomer component a1, Monomer component a1, which is an unsaturated functional monomer, and (meth)acrylic polymer component B at least about 0.1% by weight and not more than about 20% by weight of monomer component a, based on the total weight of 2, wherein the monomer component is an acidic monomer having an acidic group and an ethylenically unsaturated group. a2) and (meth)acrylic polymer component B) is basic. tape.

[0211] Embodiment 40. A single layer foam tape comprising hollow microspheres within the adhesive composition. and a foam core, wherein the adhesive composition is at least about 2 times as thick as the adhesive composition by weight. % by weight and 49% by weight or less of (meth)acrylic polymer component A and the total weight of the adhesive composition and at least about 51% by weight of the (meth)acrylic polymer component B, based on the amount of the adhesive composition. At least about 0.1 wt. % and no more than about 30 wt. % tackifier, based on the total weight of the composition and (meth)acrylic polymer component A comprises a reaction product of a polymerizable material. The reaction product of the polymerizable material is in a small amount relative to the total weight of the (meth)acrylic polymer component A. at least about 40% by weight and up to about 99% by weight of monomer component a1, The total weight of the unsaturated monomer component a1 and the (meth)acrylic polymer component A is 0.1% by weight and up to about 20% by weight of monomer component a2, based on the amount of acidic groups and a monomer component a2, which is an acidic monomer having an ethylenically unsaturated group, The (meth)acrylic polymer component B contains a reaction product of a polymerizable material, The reaction product is at least about 40 times the total weight of the (meth)acrylic polymer component B. % by weight and about 99% by weight or less of monomer component b1, based on the total weight of the monomer component b1 and the (meth)acrylic polymer component B, At least about 1% by weight and not more than about 60% by weight of monomer component b2, Nitrogen-containing (meth)acrylic monomers with primary, secondary, or tertiary amino groups monomers or nitrogen-containing monomers having a primary, secondary, or tertiary amide group Monomer component b2 is an ethylenically unsaturated functional monomer, and Room tape.

[0212] Embodiment 41. The single layer foam tape has a thickness of at least about 0.125 mm. 41. A monolayer foam tape according to any one of embodiments 38, 39, and 40.

[0213] Embodiment 42. The embodiment in which the single layer foam tape has a thickness of about 0.25 mm or less. 38, 39, and 40. A single layer foam tape according to any one of claims 38, 39, and 40.

[0214] Embodiment 43. The hollow microspheres are glass beads, polymer microspheres, or a combination thereof. 41. The monolayer foam of any one of embodiments 38, 39, and 40, including lamination. Group.

[0215] Embodiment 44. The (meth)acrylic polymer component A has a mass of at least about 5,000 g / m 41. The monolayer film of any one of embodiments 38, 39, and 40, having a molecular weight of 100 mol. Foam tape.

[0216] Embodiment 45. The (meth)acrylic polymer component A has a glass transition temperature of at least about 40°C. 41. The monolayer foam of any one of embodiments 39 and 40, having a transition temperature (Tg). tape.

[0217] Embodiment 46. (Meth)acrylic polymer component B has a glass transition temperature of about 20°C or less. 41. The monolayer foam tape of any one of embodiments 39 and 40, having a Tg .

[0218] Embodiment 47. The (meth)acrylic polymer component A comprises a reaction product of a polymerizable material. The reaction product of the polymerizable material is in a small amount relative to the total weight of the (meth)acrylic polymer component A. at least about 40% by weight and up to about 99% by weight of monomer component a1, The total weight of the unsaturated monomer component a1 and the (meth)acrylic polymer component A is and at least about 0.1% by weight and not more than about 20% by weight of monomer component a2. Monomer component a2 is an acidic monomer having an acidic group and an ethylenically unsaturated group. 39. The monolayer foam tape of embodiment 38, comprising:

[0219] Embodiment 48. An embodiment in which the monomer component a2 is an acid-containing (meth)acrylic monomer. 48. The monolayer foam tape of any one of claims 39, 40, and 47.

[0220] Embodiment 49. The (meth)acrylic polymer component B comprises a reaction product of a polymerizable material. The reaction product of the polymerizable material is in a small amount relative to the total weight of the (meth)acrylic polymer component B. At least about 40% by weight and not more than about 99% by weight of monomer component b1, 4. A monomer component b1, which is an acrylic ester, and a (meth)acrylic polymer component B At least about 1% by weight and not more than about 60% by weight of monomer component b2, based on the total weight. hydroxyl-containing (meth)acrylic monomers, primary, secondary, or tertiary amino groups or a nitrogen-containing monomer having a primary, secondary, or tertiary amide group monomer component b2, which is an ethylenically unsaturated functional monomer selected from the group consisting of: 40. The monolayer foam tape of any one of embodiments 38 and 39, comprising:

[0221] Embodiment 50: The (meth)acrylic polymer component A is a (meth)acrylic polymer component At least about 0.1% by weight and not more than about 60% by weight of the monomer component, based on the total weight of component A The composition further comprises a monomer component a3, wherein the monomer component a3 is a hydroxyl-containing (meth)acrylic acid ester. an ethylenically unsaturated functional monomer selected from the group consisting of ethylene glycol, propylene glycol, propylene glycol esters, propylene glycol diols, propylene glycol ester ... 48. The monolayer foam tape of any one of claims 39, 40, and 47.

[0222] Embodiment 51: The (meth)acrylic polymer component B is a (meth)acrylic polymer component At least about 0.1% by weight and not more than about 60% by weight of monomer components based on the total weight of component B The monomer component b3 is an ethylenically unsaturated monomer, and the monomer Embodiment 40, wherein component b3 is different from both monomer component b1 and monomer component b2. 49. The monolayer foam tape of any one of claims 1 to 49.

[0223] Embodiment 52. The monomer component b3 is: i. an acid having an acid group and an ethylenically unsaturated group hydroxyl-containing monomers having a hydroxyl group and an ethylenically unsaturated group; acrylic acid ester monomers, iii. nitrogen-containing monomers having primary, secondary, or tertiary amino groups Monomers containing primary, secondary, or tertiary amide groups and ethylenically unsaturated groups a nitrogen-containing monomer, iv. a vinyl monomer, or v. a combination thereof, 52. A monolayer foam tape according to embodiment 51.

[0224] Embodiment 53. The tackifier component comprises C5, C9, C5 / C9, dicyclopentadiene, 3. A terpene, or a hydrogenated resin thereof, or a combination thereof. 8, 39, and 40. A monolayer foam tape according to any one of claims 8, 39, and 40.

[0225] Embodiment 54. A foam core comprising hollow microspheres within a foam material, and a foam core a first adhesive layer covering the first surface, wherein the first adhesive layer a first adhesive composition, the first adhesive composition having at least about 2% by weight of the total adhesive composition; % by weight and 49% by weight or less of a (meth)acrylic polymer component A and a first adhesive composition At least about 51% by weight of a (meth)acrylic polymer component B, based on the total weight of the article; At least about 0.1 wt. % and not less than about 30 wt. % based on the total weight of the first adhesive composition. and a tackifier component below, wherein the (meth)acrylic polymer - Component A is acidic and has a glass transition temperature (Tg) of at least about 40°C, ( The meth)acrylic polymer component B is basic and has a glass transition temperature of about 20°C or less. (Tg).

[0226] Embodiment 55. A foam tape comprising hollow microspheres within a foam material. a foam core and a first adhesive layer covering a first surface of the foam core, is a first adhesive composition, and is at least about 2% by weight and 49% by weight or less of (meth)acrylic polymer component A and a first adhesive composition at least about 51% by weight of a (meth)acrylic polymer component B, based on the total weight of the composition; , at least about 0.1 wt. % and about 30 wt. % based on the total weight of the first adhesive composition and a tackifier component, The mer component A includes a reaction product of a polymerizable material, and the reaction product of the polymerizable material is a (meth)amer. at least about 40% by weight and about 99% by weight, based on the total weight of the kryl-based polymer component A The following monomer component a1 is an ethylenically unsaturated functional monomer: and (meth)acrylic polymer component B. % by weight and about 20% by weight or less of monomer component a2, and a monomer component a2, which is an acidic monomer having a hydroxyl group, A foam tape wherein polymer component B is basic.

[0227] Embodiment 56. A foam tape comprising hollow microspheres within a foam material. a foam core and a first adhesive layer covering a first surface of the foam core, is a first adhesive composition, and is at least about 2% by weight and 49% by weight or less of (meth)acrylic polymer component A and a first adhesive composition at least about 51% by weight of a (meth)acrylic polymer component B, based on the total weight of the composition; , at least about 0.1 wt. % and about 30 wt. % based on the total weight of the first adhesive composition and a tackifier component, The mer component A comprises a reaction product of a polymerizable material, and the reaction product of the polymerizable material is a (meth)amer. at least about 40% by weight and about 99% by weight, based on the total weight of the kryl-based polymer component A Monomer component a1 below, which is an ethylenically unsaturated monomer and 0.1% by weight and about 20% by weight, based on the total weight of the (meth)acrylic polymer component A. % or less of a monomer component a2, which is an acidic monomer having an acidic group and an ethylenically unsaturated group. and a (meth)acrylic polymer component B is a (meth)acrylic polymer component a2. the reaction product of the polymerizable material is a (meth)acrylic polymer At least about 40% by weight and not more than about 99% by weight of the monomer components, based on the total weight of component B a monomer component b1 which is a C1 to C24 acrylic ester; and a (meth) at least about 1 wt. % and about 60 wt. % based on the total weight of acrylic polymer component B The following monomer component b2 is a hydroxyl-containing (meth)acrylic monomer, primary: Nitrogen-containing monomers having secondary or tertiary amino groups, or primary, secondary, or tertiary an ethylenically unsaturated functional monomer selected from nitrogen-containing monomers having a tertiary amide group; A foam tape comprising a monomer component b2.

[0228] Embodiment 57. The first adhesive layer has a thickness of at least about 0.125 mm. 57. The foam tape of any one of embodiments 54, 55, and 56.

[0229] Embodiment 58. The first adhesive layer of embodiment 54, wherein the first adhesive layer has a thickness of about 0.25 mm or less. 57. The foam tape according to any one of claims 55 and 56.

[0230] Embodiment 59. The foam material is an acrylic material, a polyurethane material, or a polyethylene material. , PVC material, or a combination thereof. The foam tape described in any one of the above.

[0231] Embodiment 60. The foam material comprises acrylic foam or polyurethane foam. , A foam tape according to any one of embodiments 54, 55, and 56.

[0232] Embodiment 61. The hollow microspheres are glass beads, polymer microspheres, or a combination thereof. 57. The foam tape of any one of embodiments 54, 55, and 56, comprising a lamination. .

[0233] Embodiment 62. The (meth)acrylic polymer component A has a mass of at least about 5,000 g / m 57. The method of any one of embodiments 54, 55, and 56, having a molecular weight of 1000 mol. Mutape.

[0234] Embodiment 63. The (meth)acrylic polymer component A has a glass transition temperature of at least about 40°C. 57. The foam tape of any one of embodiments 55 and 56, having a transition temperature (Tg). Pu.

[0235] Embodiment 64. The (meth)acrylic polymer component B has a glass transition temperature of about 20°C or less. 57. The foam tape of any one of embodiments 55 and 56, having a Tg.

[0236] Embodiment 65. The (meth)acrylic polymer component A comprises a reaction product of a polymerizable material. The reaction product of the polymerizable material is in a small amount relative to the total weight of the (meth)acrylic polymer component A. at least about 40% by weight and up to about 99% by weight of monomer component a1, The total weight of the unsaturated monomer component a1 and the (meth)acrylic polymer component A is and at least about 0.1% by weight and not more than about 20% by weight of monomer component a2. Monomer component a2 is an acidic monomer having an acidic group and an ethylenically unsaturated group. 55. The foam tape of embodiment 54, comprising:

[0237] Embodiment 66. An embodiment in which the monomer component a2 is an acid-containing (meth)acrylic monomer. 66. The foam tape according to any one of aspects 55, 56, and 65.

[0238] Embodiment 67. The (meth)acrylic polymer component B comprises a reaction product of a polymerizable material. The reaction product of the polymerizable material is in a small amount relative to the total weight of the (meth)acrylic polymer component B. At least about 40% by weight and not more than about 99% by weight of monomer component b1, 4. A monomer component b1, which is an acrylic ester, and a (meth)acrylic polymer component B At least about 1% by weight and not more than about 60% by weight of monomer component b2, based on the total weight. hydroxyl-containing (meth)acrylic monomers, primary, secondary, or tertiary amino groups or a nitrogen-containing monomer having a primary, secondary, or tertiary amide group monomer component b2, which is an ethylenically unsaturated functional monomer selected from the group consisting of: 56. The foam tape of any one of embodiments 54 and 55, comprising:

[0239] Embodiment 68: The (meth)acrylic polymer component A is a (meth)acrylic polymer component At least about 0.1% by weight and not more than about 60% by weight of the monomer component, based on the total weight of component A The composition further comprises a monomer component a3, wherein the monomer component a3 is a hydroxyl-containing (meth)acrylic acid ester. an ethylenically unsaturated functional monomer selected from the group consisting of ethylene glycol, propylene glycol, propylene glycol esters, propylene glycol diols, propylene glycol ester ... 66. The foam tape according to any one of aspects 55, 56, and 65.

[0240] Embodiment 69: The (meth)acrylic polymer component B is a (meth)acrylic polymer component At least about 0.1% by weight and not more than about 60% by weight of monomer components based on the total weight of component B The monomer component b3 is an ethylenically unsaturated monomer, and the monomer Embodiment 56, wherein component b3 is different from both monomer component b1 and monomer component b2. and 67. The foam tape according to any one of claims 1 to 67.

[0241] Embodiment 70. The monomer component b3 is: i. an acid having an acid group and an ethylenically unsaturated group hydroxyl-containing monomers having a hydroxyl group and an ethylenically unsaturated group; acrylic acid ester monomers, iii. nitrogen-containing monomers having primary, secondary, or tertiary amino groups Monomers containing primary, secondary, or tertiary amide groups and ethylenically unsaturated groups a nitrogen-containing monomer, iv. a vinyl monomer, or v. a combination thereof, 70. The foam tape of embodiment 69.

[0242] Embodiment 71. The tackifier component is selected from the group consisting of C5, C9, C5 / C9, dicyclopentadiene, terpenes, or hydrogenated resins thereof, or combinations thereof. 57. The foam tape of any one of 4, 55, and 56.

[0243] Embodiment 72. A method for manufacturing a foam adhesive sheet, comprising: Any one of embodiments 54, 55, and 56, wherein the adhesive layer comprises a second adhesive composition. The foam tape according to any one of the preceding claims.

[0244] Embodiment 73. The second adhesive composition comprises at least and (meth)acrylic polymer component A in an amount of about 2% by weight and 49% by weight or less, respectively. At least about 51% by weight of the (meth)acrylic polymer component based on the total weight of the adhesive composition. Part B and at least about 0.1 wt. % and about 30 wt. % of the total weight of the second adhesive composition. % by weight or less of a tackifier component, and the (meth)acrylic polymer component A is and having a glass transition temperature (Tg) of at least about 40°C, Polymer component B is basic and has a glass transition temperature (Tg) of about 20°C or less; 73. The foam tape of embodiment 72.

[0245] Embodiment 74. The second adhesive composition comprises at least and (meth)acrylic polymer component A in an amount of about 2% by weight and 49% by weight or less, respectively. At least about 51% by weight of the (meth)acrylic polymer component based on the total weight of the adhesive composition. Part B and at least about 0.1 wt. % and about 30 wt. % of the total weight of the second adhesive composition. % by weight or less of a tackifier component, and the (meth)acrylic polymer component A is the reaction product of the polymerizable material includes a (meth)acrylic polymer component at least about 40% by weight and not more than about 99% by weight of monomer component a, based on the total weight of A; 1, wherein the monomer component a1 is an ethylenically unsaturated functional monomer, and the (meth)a at least about 0.1 wt. % and about 20 wt. % based on the total weight of the acrylic polymer component B; % or less of the monomer component a2, which is an acidic monomer having an acidic group and an ethylenically unsaturated group. and a (meth)acrylic polymer component B, which is a base. 73. The foam tape of embodiment 72, which is non-woven.

[0246] Embodiment 75. The second adhesive composition comprises at least and (meth)acrylic polymer component A in an amount of about 2% by weight and 49% by weight or less, respectively. At least about 51% by weight of the (meth)acrylic polymer component based on the total weight of the adhesive composition. Part B and at least about 0.1 wt. % and about 30 wt. % of the total weight of the second adhesive composition. % by weight or less of a tackifier component, and the (meth)acrylic polymer component A is the reaction product of the polymerizable material includes a (meth)acrylic polymer component at least about 40% by weight and not more than about 99% by weight of monomer component a, based on the total weight of A; 1, wherein the monomer component a1 is an ethylenically unsaturated monomer, and (meth)acrylic 0.1% by weight and about 20% by weight or less of the monomer component based on the total weight of the system polymer component A Monomer a2 is an acidic monomer having an acidic group and an ethylenically unsaturated group. component a2, and the (meth)acrylic polymer component B is a reaction product of a polymerizable material and the reaction product of the polymerizable material is a (meth)acrylic polymer component B based on the total weight of the (meth)acrylic polymer component B. and at least about 40% by weight and not more than about 99% by weight of monomer component b1, and A monomer component b1 is a C24 acrylic ester, and a (meth)acrylic polymer component b2 is a (meth)acrylic polymer component. at least about 1 wt. % and not more than about 60 wt. % of monomer component b, based on the total weight of component B; 2, wherein the hydroxyl-containing (meth)acrylic monomer is a primary, secondary, or tertiary acrylic monomer. Nitrogen-containing monomers having an amide group or nitrogen-containing monomers having a primary, secondary, or tertiary amide group Monomer component b is an ethylenically unsaturated functional monomer selected from alkylene-containing monomers. 2. The foam tape of embodiment 72, comprising:

[0247] Embodiment 76. The (meth)acrylic polymer component A has a mass of at least about 5,000 g / m 76. The method of any one of embodiments 73, 74, and 75, having a molecular weight of 1000 mol. Mutape.

[0248] Embodiment 77. The (meth)acrylic polymer component A has a glass transition temperature of at least about 40°C. 76. The foam tape of any one of embodiments 74 and 75, having a transition temperature (Tg). Pu.

[0249] Embodiment 78. The (meth)acrylic polymer component B has a glass transition temperature of about 20°C or less. 76. The foam tape of any one of embodiments 74 and 75, having a Tg.

[0250] Embodiment 79. The (meth)acrylic polymer component A comprises a reaction product of a polymerizable material. The reaction product of the polymerizable material is in a small amount relative to the total weight of the (meth)acrylic polymer component A. at least about 40% by weight and up to about 99% by weight of monomer component a1, The total weight of the unsaturated monomer component a1 and the (meth)acrylic polymer component A is and at least about 0.1% by weight and not more than about 20% by weight of monomer component a2. Monomer component a2 is an acidic monomer having an acidic group and an ethylenically unsaturated group. 74. The foam tape of embodiment 73, comprising:

[0251] Embodiment 80. An embodiment in which the monomer component a2 is an acid-containing (meth)acrylic monomer. 80. The foam tape of any one of claims 74, 75, and 79.

[0252] Embodiment 81. The (meth)acrylic polymer component B comprises a reaction product of a polymerizable material. The reaction product of the polymerizable material is in a small amount relative to the total weight of the (meth)acrylic polymer component B. At least about 40% by weight and not more than about 99% by weight of monomer component b1, 4. A monomer component b1, which is an acrylic ester, and a (meth)acrylic polymer component B At least about 1% by weight and not more than about 60% by weight of monomer component b2, based on the total weight. hydroxyl-containing (meth)acrylic monomers, primary, secondary, or tertiary amino groups or a nitrogen-containing monomer having a primary, secondary, or tertiary amide group monomer component b2, which is an ethylenically unsaturated functional monomer selected from the group consisting of: 75. The foam tape of any one of embodiments 73 and 74, comprising:

[0253] Embodiment 82: The (meth)acrylic polymer component A is a (meth)acrylic polymer component At least about 0.1% by weight and not more than about 60% by weight of the monomer component, based on the total weight of component A The composition further comprises a monomer component a3, wherein the monomer component a3 is a hydroxyl-containing (meth)acrylic acid ester. an ethylenically unsaturated functional monomer selected from the group consisting of ethylene glycol, propylene glycol, propylene glycol esters, propylene glycol diols, propylene glycol ester ... 76. The foam tape according to any one of aspects 74 and 75.

[0254] Embodiment 83: The (meth)acrylic polymer component B is a (meth)acrylic polymer component At least about 0.1% by weight and not more than about 60% by weight of monomer components based on the total weight of component B The monomer component b3 is an ethylenically unsaturated monomer, and the monomer Embodiment 81, in which component b3 is different from both monomer component b1 and monomer component b2 The foam tape according to claim 1.

[0255] Embodiment 84. The monomer component b3 is: i. an acid having an acid group and an ethylenically unsaturated group hydroxyl-containing monomers having a hydroxyl group and an ethylenically unsaturated group; acrylic acid ester monomers, iii. nitrogen-containing monomers having primary, secondary, or tertiary amino groups Monomers containing primary, secondary, or tertiary amide groups and ethylenically unsaturated groups a nitrogen-containing monomer, iv. a vinyl monomer, or v. a combination thereof, 84. The foam tape of embodiment 83.

[0256] Embodiment 85. The tackifier component comprises C5, C9, C5 / C9, dicyclopentadiene, terpenes, or hydrogenated resins thereof, or combinations thereof. 76. The foam tape of any one of 3, 74, and 75. [Example]

[0257] The concepts described herein are further illustrated in the following examples, which are incorporated by reference in their entirety. The claims do not limit the scope of the invention as set forth in the claims.

[0258] Test Method The following test methods were used to evaluate the adhesives of the present invention. All percentages, parts and proportions, and claims, unless otherwise stated, , by weight.

[0259] Test method A1: Strips of anodized aluminum (dimensions 19mm x 200mm x 0. 125 mm) to a non-tested tape sample 10 mm wide and at least 100 mm long Apply pressure to the aluminum by rolling it with a 6.8 kg roller. Next, rinse the other side of the sample (the test side) with heptane or isopropyl alcohol. Pre-washed polypropylene or polypropylene-ethylene propylene diene Adhere firmly to one of the polymer panels. 24 hours at room temperature and 50% relative humidity. After conditioning, the aluminum strip was placed at a 90° angle to the adhesive surface. The specimen is removed by pulling at a rate of cm / min. The test value is The force required to remove the tape from the adhesive (delamination of the adhesive) or to cohesively separate the tape is Foam slicing (FS) is a process where the adhesion to the substrate is stronger than the internal strength of the foam layer. This is the most desirable failure mode because it indicates that

[0260] Test Method B1: Apply the non-test adhesive side of a 2.54 cm x 2.54 cm piece of foam tape to In a 3.0 cm x 3.0 cm square section of an aluminum fixture molded at a 0° angle The other side of the foam tape (the test side) is placed at 7.6 2 cm x 5.08 cm polystyrene foam pre-cleaned with heptane or isopropyl alcohol Polypropylene or polypropylene-ethylene propylene diene terpolymer panels The film is then pasted in the center and rolled again with a 6.8 kg weight. 24 hours at room temperature and 50% relative humidity. After conditioning, the assembly is secured with a plastic panel and placed at a 90° angle. A 1.5 kg weight is suspended from the other arm of the aluminum fixture. The time it takes to fall is recorded in hours. If no failure occurs after 10,000 minutes, The test is cancelled.

[0261] Test Method B2: The test conditions are as follows: the assembly is placed in an air-circulating oven at 80°C, and the Same as B1 except a 0g weight is suspended from an aluminum fixture.

[0262] Test Method C: The weight average molecular weight (Mw) and polydispersity index (PDI) of a sample were determined by gel permeation chromatography. Measured by gel permeation chromatography (GPC). Shimadzu RID-20A refractive index detector Shimadzu Prominence LC-20AD system with detector The GPC had a linear calibration range of 200–2 × 107 g mol-1. A series of ten narrow polydispersity polystyrene standards calibrated to provide The column was equipped with an oligomer column. Tetrahydrofuran (THF, flow rate 1 mL / min) The water was used as wastewater at 40°C. For each measurement, 30 mg of polymer was dissolved in 4 mL of THF. The solution was dissolved and filtered through a 200 μm nylon filter before injection.

[0263] Raw Materials: All chemicals are used as received without further purification or processing. was used in the condition. [Table 1]

[0264] The adhesive was applied to a 50 micron PET film or to a 900 psi (10% by weight) acrylic acid, Made with 0% by weight of 2-ethylhexyl acrylate, microspheres, and other common materials. Coated and cured onto a 0.9mm proprietary acrylic foam core.

[0265] Example 1: Samples S1 to S4 Sample adhesive compositions S1-S4 were formed according to embodiments described herein. The compositions of adhesives S1 to S4 are summarized in Table 1 below. [Table 2]

[0266] The acidic polymer component A used in adhesive compositions S1 to S4 contains different acidic comonomers. It was synthesized via suspension polymerization of isobornyl acrylate / methacrylate using The general procedure was as follows: 400 mL of distilled water was added to a 1 L glass vessel and filled with nitrogen gas. After spraying the mixture for 1 hour, the mixture was heated to 65°C. (22 g), MAA (3 g), IOTG (0.7 g), and AIBN (1.0 g) were placed in a round-bottom flask. The water was then placed in a sco and purged with nitrogen gas for 45 minutes. When the water temperature reached 65°C, 00-88 (5 g of a 5 wt % solution in distilled water) was added to water and stirred at 700 rpm. The deoxygenated monomer mixture was then added to the reactor until vigorously stirred. The contents of the vessel were heated to 75°C and held at that temperature for 5.5 hours. The potassium chloride solution was added to the mixture and held at 75°C for an additional 2 hours. The product was isolated by filtration and washed repeatedly with distilled water. The sample was dried in a vacuum oven set at 50°C for 24 hours to remove any residual water. Table 2 shows the properties of the polymer components A1 to A4. [Table 3]

[0267] Component B of sample adhesive compositions S1 to S4 was prepared according to the weight percent composition shown in Table 1. V-initiated radical photopolymerization of a mixture of acrylates and basic monomers Based on 400g, Irgacure 819 (0.1g) was added. The mixture was dissolved in the above-mentioned monomer mixture, which was then purged with nitrogen gas for 1 hour, and then analyzed at 365 nm. The specimen was exposed to UV light at 5 mW / cm2 until a temperature rise of 15 to 20°C was observed. The obtained basic polymer component B had a viscosity of about 1000 cP.

[0268] The sample adhesive composition S1 was prepared by first mixing the relevant acidic polymer component A, the basic polymer component B, and the B, tackifier, IBOA, Irgacure 2022, and HDDA were used as listed in Table 1. The acidic and basic polymer components were combined in amounts such that The different ingredients were mixed at room temperature until dissolved to form syrup S1. The syrup was then mixed as described above. 0.9mm acrylic foam core or coated on 50 micron PET film Cure under UV light at 365nm, 5mW / cm² for 8 minutes to a thickness of approximately 100 microns An adhesive coating of 0.1g was formed.

[0269] For the sample adhesive compositions, S2, S3, and S4 are the relevant acidic polymer components A and the basic polymer component B were substituted as specified in Table 1. It was prepared in the same manner as adhesive composition S1.

[0270] Example 2: Comparative Samples C1 to C3 Comparative sample adhesive compositions C1 to C3 are adhesives containing the above-mentioned acidic and basic components. The compositions of comparative sample adhesives C1 to C3 were prepared to illustrate their unique properties. Summarized in Table 3. [Table 4]

[0271] Component N in the comparative adhesive composition is the same as that used to prepare the acidic polymer component A. It was prepared via a similar suspension polymerization process. However, the acidic comonomer was neutral hydroxyl-containing monomers or monomers and basic nitrogen-containing monomers The polymer component N was used instead of other polar comonomers such as a mixture of The results are summarized in Table 4. [Table 5]

[0272] Component B of Comparative Adhesive Compositions C1-C3 was prepared according to the instructions given for Sample Adhesive S1. Comparative adhesive compositions C1 to C3 were prepared by mixing component N, a basic polymer component B, and an adhesive. Additives, IBOA, Irgacure 2022, and HDDA in the amounts shown in Table 3 The ingredients N were completely dissolved to make syrups C1 to C3. The different components were mixed at room temperature until the syrup was dissolved in 0.9 mm acrylic foam. Coated on a 50 micron PET film or a foam core, 365 nm, 5 mW / c Cure under 10 ... Successful.

[0273] Low surface energy materials such as polypropylene and polypropylene / polyethylene copolymers The adhesion of the sample adhesives to the substrates was evaluated using test method A1. The peel strengths of S4 and comparative adhesives C1-C3 are summarized in Table 5 below. The abbreviation FS stands for form It is an abbreviation for cutting. [Table 6]

[0274] Test Method A1 is a 90° peel test performed at a constant displacement. This is a measure of adhesive performance. This is a standard industry test that can easily distinguish between good and bad adhesive samples of the present invention. All of the adhesive samples and comparative adhesives appear to have good adhesion to low surface energy substrates. are formulated to be identical in all industry standard fixed rate of displacement tests. Make.

[0275] High adhesive and cohesive strength under severe conditions as described in test methods B1 and B2 This can be better measured using the more rigorous fixed load 90° peel test. Apply a fixed load and observe the time to failure, which allows for much greater adhesion to the adhesive. A better indicator of high adhesion and cohesion in stressful and demanding applications The adhesive samples S1 to S4 and the comparative adhesives C1 to C3 in tests B1 and B2 were The performance is summarized in Table 6 below. [Table 7]

[0276] The data show that the adhesives of the present invention, which contain both acidic and basic components, are particularly effective at high temperatures according to test B2. The comparative adhesive clearly demonstrates excellent adhesive and cohesive strength when tested at The adhesive rapidly broke down and failed, whereas the adhesive of the present invention performed far better under these harsh conditions. It had holding power.

[0277] Not all of the features described in the general description or examples above are required, and specific Some of the functions of may not be required and may perform one or more functions in addition to the functions described. Furthermore, the order in which the functions are listed does not necessarily indicate the order in which they are performed. This is not the order in which they are displayed.

[0278] Benefits, other advantages, and solutions to problems have been described above with regard to specific embodiments. However, benefits, advantages, solutions to problems, and any benefits, advantages, or Any feature(s) that may cause the solution to occur or become more pronounced are either or any claim, shall be construed as a key, essential, or essential feature. It's not that.

[0279] The specification and illustrations of the embodiments set forth herein are provided to provide a general understanding of the structure of the various embodiments. The specification and examples are intended to provide a thorough understanding of the structures or methods described herein. A comprehensive and comprehensive description of all elements and features of devices and systems that use the method Separate embodiments are also not intended to serve as a single embodiment. Conversely, for the sake of brevity, some embodiments may be described in the context of a single embodiment. The various features disclosed may also be provided separately or in any subcombination. Furthermore, references to values ​​stated in ranges include each and every value within that range. Many other embodiments may be apparent to those skilled in the art upon reading this disclosure. so that structural substitutions, logical substitutions, or other modifications can be made without departing from the spirit of the present invention. Other embodiments may be used and derived from this disclosure. Accordingly, this disclosure is not intended to be limiting. should be considered merely illustrative.

Claims

1. 1. An adhesive composition comprising: at least about 2 wt. % and no more than 49 wt. % of a (meth)acrylic polymer component A, based on the total weight of the adhesive composition; At least about 51% by weight of a (meth)acrylic polymer component B, based on the total weight of the adhesive composition; at least about 0.1 wt. % and no more than about 30 wt. % of a tackifier component, based on the total weight of the adhesive composition; the (meth)acrylic polymer component A is acidic and has a glass transition temperature (Tg) of at least about 40° C.; the (meth)acrylic polymer component B is basic and has a glass transition temperature (Tg) of about 20° C. or less; The (meth)acrylic polymer component A comprises a reaction product of a polymerizable material, and the reaction product of the polymerizable material is a monomer component a1, the monomer component a1 being at least about 40% by weight and not more than about 99% by weight, based on the total weight of the (meth)acrylic polymer component A, the monomer component a1 being an ethylenically unsaturated monomer; a monomer component a2, which is at least about 0.1% by weight and not more than about 20% by weight of a monomer component a2, based on the total weight of the (meth)acrylic polymer component A, and which is an acidic monomer having an acidic group and an ethylenically unsaturated group; and at least about 0.1 wt. % and no more than about 60 wt. % of monomer component a3, based on the total weight of the (meth)acrylic polymer component A, which is an ethylenically unsaturated functional monomer selected from a hydroxyl-containing (meth)acrylic acid ester or an acrylamide; The (meth)acrylic polymer component B comprises a reaction product of a polymerizable material, and the reaction product of the polymerizable material is a monomer component b1, which is at least about 40% by weight and not more than about 99% by weight, based on the total weight of the (meth)acrylic polymer component B, and which is a C1 to C24 acrylic ester; and a monomer component b2 of at least about 1 wt % and not more than about 60 wt %, based on the total weight of the (meth)acrylic polymer component B, which is an ethylenically unsaturated functional monomer selected from a hydroxyl-containing (meth)acrylic monomer, a nitrogen-containing monomer having a primary, secondary, or tertiary amino group, or a nitrogen-containing monomer having a primary, secondary, or tertiary amide group; 1. An adhesive composition, wherein the time it takes for an aluminum fixture to peel from a foam tape comprising said adhesive composition is 48 hours or longer as measured by a fixed load 90° peel test in which the foam tape is placed in an air circulating oven at 80° C. and a 500 g weight is suspended from the aluminum fixture.

2. The adhesive composition of claim 1 , wherein the (meth)acrylic polymer component A has a molecular weight of at least about 5,000 g / mol.

3. The adhesive composition according to claim 1 , wherein the monomer component a2 is an acid-containing (meth)acrylic monomer.

4. 2. The adhesive composition according to claim 1, wherein the (meth)acrylic polymer component B further comprises at least about 0.1 wt % and not more than about 60 wt % of a monomer component b3, based on the total weight of the (meth)acrylic polymer component B, the monomer component b3 being an ethylenically unsaturated monomer, and the monomer component b3 being different from both the monomer component b1 and the monomer component b2.

5. The monomer component b3 is i. an acidic monomer having an acidic group and an ethylenically unsaturated group; ii. a hydroxy-containing acrylic ester monomer having a hydroxyl group and an ethylenically unsaturated group; iii. a nitrogen-containing monomer having a primary, secondary, or tertiary amino group, or a nitrogen-containing monomer having a primary, secondary, or tertiary amide group and an ethylenically unsaturated group; iv. vinyl monomers, or v. The adhesive composition of claim 4, comprising a combination thereof.

6. 10. The adhesive composition of claim 1, wherein the tackifier component comprises a C5, C9, C5 / C9, dicyclopentadiene, terpene, or hydrogenated resins thereof, or combinations thereof.

7. 1. A method of forming an adhesive composition comprising: providing a pre-adhesive mixture, the pre-adhesive mixture comprising: a pre-adhesive (meth)acrylic polymer component A, the pre-adhesive (meth)acrylic polymer component A being fully polymerized; a pre-adhesive (meth)acrylic polymer component B, the pre-adhesive (meth)acrylic polymer component B being unpolymerized; a tackifier-forming component; and mixing the pre-adhesive mixture; and polymerizing the pre-adhesive mixture to form the adhesive composition. The pre-adhesive (meth)acrylic polymer component A comprises a reaction product of a polymerizable material, the reaction product of the polymerizable material being at least about 40% by weight and up to about 99% by weight of a pre-adhesive monomer component a1, based on the total weight of the pre-adhesive (meth)acrylic polymer component A, the pre-adhesive monomer component a1 being an ethylenically unsaturated monomer; at least about 0.1 wt. % and not more than about 20 wt. % of a pre-adhesive monomer component a2, based on the total weight of the pre-adhesive (meth)acrylic polymer component A, the pre-adhesive monomer component a2 being an acidic monomer having an acidic group and an ethylenically unsaturated group; and at least about 0.1 wt. % and no more than about 60 wt. % of a pre-adhesive monomer component a3, based on the total weight of the pre-adhesive (meth)acrylic polymer component A, the pre-adhesive monomer component a3 being an ethylenically unsaturated functional monomer selected from hydroxyl-containing (meth)acrylic acid esters or acrylamides; the pre-adhesive (meth)acrylic polymer component B comprises a reaction product of a polymerizable material, the reaction product of the polymerizable material being at least about 40% by weight and up to about 99% by weight of a pre-adhesive monomer component b1, based on the total weight of the pre-adhesive (meth)acrylic polymer component B, the pre-adhesive monomer component b1 being a C1-C24 acrylic ester; and at least about 1% by weight and up to about 60% by weight, based on the total weight of the pre-adhesive (meth)acrylic polymer component B, of a pre-adhesive monomer component b2 which is an ethylenically unsaturated functional monomer selected from a hydroxyl-containing (meth)acrylic monomer, a nitrogen-containing monomer having a primary, secondary, or tertiary amino group, or a nitrogen-containing monomer having a primary, secondary, or tertiary amide group; the time it takes for an aluminum fixture to peel from a foam tape comprising said adhesive composition is 48 hours or longer as measured by a fixed load 90° peel test in which the foam tape is placed in an air circulating oven at 80° C. and a 500 g weight is suspended from the aluminum fixture; the pre-adhesive (meth)acrylic polymer component A is acidic and has a glass transition temperature (Tg) of at least about 40° C.; the pre-adhesive (meth)acrylic polymer component B is basic and has a glass transition temperature (Tg) of about 20° C. or less; The method wherein the pre-adhesive (meth)acrylic polymer component A has a molecular weight of at least about 30,000 g / mol.

8. The pre-adhesive mixture comprises: at least about 2% by weight and up to 49% by weight of the pre-adhesive (meth)acrylic polymer Component A, based on the total weight of the pre-adhesive mixture; at least about 51% by weight of the pre-adhesive (meth)acrylic polymer component B, based on the total weight of the pre-adhesive mixture; 8. The method of claim 7, comprising at least about 0.1% and no more than about 30% by weight of said tackifier-forming components, based on the total weight of said pre-adhesive mixture.

Images