100 results about "Methacrylic monomers" patented technology

An electrophotographic photosensitive member includes a surface layer containing a binder resin and an inorganic particle. A value of a ratio of a volume of the inorganic particle to a volume of the binder resin in the surface layer is 1.0 or more and 4.0 or less. The binder resin is a polymerization product of a composition containing a polymerizable monomer having a polymerizable functional group. The composition contains a (meth)acrylic monomer having 6 or more polymerizable functional groups. The (meth)acrylic monomer has a molecular weight of 540 or more and 1,300 or less. A content of the (meth)acrylic monomer in the composition is 40 mol % or more with respect to a total molar number of the polymerizable monomer in the composition. A surface of the surface layer has an arithmetic average roughness Rz of 150 nm or more and 400 nm or less.

A photocurable composition includes a (meth)acrylic monomer component and a photopolymerization initiator, wherein an adhesive force of a cured product is less than or equal to 1.5 N, and a rupture elongation of the cured product is greater than or equal to 20%.

To achieve an anaerobic adhesive composition capable of suppressing occurrence of coating failure during coating. The anaerobic adhesive composition of the present invention includes a (meth)acrylic monomer, an organic peroxide, a curing accelerator, and an isoparaffin wax.

The subject of this disclosure is to provide an electrophotographic photosensitive material and an electrophotographic image forming apparatus that provide sufficient image quality and durability even in positively charged image forming apparatuses. The electrophotographic photosensitive material is used in an image forming apparatus having positively charged units. The electrophotographic photosensitive material has a photosensitive layer and a protective layer. The protective layer is a cured film containing metal oxide particles and formed from a polymeric compound, and the volume resistivity of the protective layer is 10⁻⁶. ９ ~10 15 Within the range of Ω·cm, the above-mentioned polymeric compound is any one of acrylic monomers or methacrylic monomers or a mixture thereof, and the hydroxyl value of the above-mentioned polymeric compound is in the range of 10 to 200 mg KOH / g.

A separator for a rechargeable lithium battery includes a porous substrate and a coating layer on at least one surface of the porous substrate. The coating layer includes a binder, the binder including a copolymer, the copolymer including: a first structural unit including a unit derived from an aromatic unsaturated monomer; a second structural unit derived from a (meth) acrylic monomer containing an alkyl group having 4 or more carbon atoms in the main chain of the ester moiety; and the third structural unit is derived from a sulfonic acid group-containing monomer. The first structural unit is included in an amount in a range of about 5 mol% to about 80 mol%, the second structural unit is included in an amount in a range of about 10 mol% to about 40 mol%, and the third structural unit is included in an amount in a range of about 5 mol% to about 80 mol%, based on 100 mol% of the copolymer.

5 to 35% by weight of a structural monomer unit of a (meth)acrylic acid monomer, 35 to 65% by weight of a structural monomer unit of a C 1-8 alkyl (meth)acrylate monomer, and more than 10 to 30% by weight of a structure (II): [Chemical Formula 1] JPEG2026521909000033.jpg28170 (wherein R 1 is selected from linear saturated C 12-26 alkyl groups, R 2 is selected from hydrogen and methyl groups, and n is 10 to 30) of a structural monomer unit of a special associative monomer, 0.01 to 2% by weight of a structural unit of a polyvalent ethylenically unsaturated monomer, and [[ID=1~5]] a gradient polymer containing <0.05% by weight of a structural monomer unit of a sulfonated monomer and <0.02% by weight of a structure (II):[[ID=[]] 【化2】 [[ID=[]]JPEG2026521909000034.jpg36170 (wherein each R 3 is selected from -H and -CH3, R 4 / / 这里的“R 4 は、-H及び-C 1-4 アルキル基から選択され”,推测原文可能有误,这里按推测修正为“is selected from -H and -C<000000]]alkyl groups”is selected from -H and -C 1-4 alkyl groups, R 5 is selected from -C 1-4 alkyl groups, a is 0 to 50, b is 0 to 20, c is 0 to 50, a + c is 1 to 100, and d is 1 to 4) of a monomer having a structural unit, and a gradient polymer having a gradient polymer form is provided.

A pressure-sensitive adhesive includes a polyoxyalkylene polymer having no fluorinated carbon atoms and an acrylic copolymer. The acrylic copolymer includes at least 60 weight percent of linear or branched alkyl (meth)acrylate monomer units, based on the weight of the acrylic copolymer, and from 12.5 weight percent to 40 weight percent of (meth)acrylic acid monomer units, based on the weight of the acrylic copolymer. An article includes the pressure-sensitive adhesive disposed on a backing. The article can be water vapor permeable. A process for making the pressure-sensitive adhesive is also disclosed.

The present invention relates to a separator for an electrochemical device, the separator comprising a coating layer that includes, as a binder, a copolymer comprising i) repeating units derived from a (meth)acrylic acid monomer, a (meth)acrylic acid salt monomer, or both monomers, ii) a repeating unit derived from an acrylic monomer having an amide group, and iii) repeating units derived from a silane-based monomer, a monomer having a silanol group, or both monomers, wherein the copolymer may exhibit excellent adhesion to inorganic particles due to including, in particular, iii) the repeating units derived from the silane-based monomer, the monomer having a silanol group, or both monomers, and thus the separator for an electrochemical device and including the binder exhibits excellent adhesion to an electrode and has a low thermal shrinkage ratio.

Provided are an adhesive film, an optical member comprising same, and an optical display device comprising same, the adhesive film comprising a cured product of a composition for an adhesive film including a polymer of (meth)acrylic-based monomer mixtures. The adhesive film has a peel strength of 400 gf / 25 mm or more with respect to a polyethylene terephthalate film having an antistatic layer, which is measured after a specimen in which the adhesive film is laminated on the polyethylene terephthalate film having the antistatic layer is left at 60 ℃ and 93% relative humidity for 500 hours. The adhesive film has a storage modulus of 10 to 100 kPa at 25 ℃. The adhesive film has a resistance change rate of 1% or less according to Equation 1.

The invention relates to a protective film and an adhesive composition. The adhesive composition comprises an acrylic block copolymer, a cross-linking agent and a catalyst. Relative to 100 parts by weight of the acrylic block copolymer, the content of the cross-linking agent is 1-10 parts by weight, and the content of the catalyst is 0.001-0.05 part by weight. The acrylic block copolymer is prepared from a methacrylic acid monomer, an acrylic acid monomer and a hydroxyl-containing monomer through free radical two-stage polymerization. The glass transition temperature of a homopolymer after the methacrylic acid monomer is polymerized is higher than that of a homopolymer after the acrylic acid monomer is polymerized. The acrylic block copolymer comprises a block A and a block B.

A multilayer film includes pluralities of first layers and polymeric second layers arranged along a thickness direction of the multilayer film. The first and second layers having different compositions. At least one layer of the multilayer film includes at least one polymer and metal oxide nanoparticles dispersed in the at least one polymer. The at least one polymer includes a first polymer including (meth)acrylic acid monomer units. The metal oxide nanoparticles are surface modified with a carboxylic acid silane surface modifying agent.

The application discloses a two-component acrylate adhesive, a preparation method and application thereof. The two-component acrylate adhesive comprises: component A, which comprises an acrylate polymer (a) dispersed in a solvent; and component B, which comprises a partially blocked isocyanate curing agent (b), which is a reactant of an isocyanate trimer and a ketoxime, wherein the blocking ratio of isocyanate groups is 35% to 65%; wherein the acrylate copolymer (a) is a copolymer comprising units derived from a (meth) acrylic acid monomer, units derived from a (meth) acrylic aryl ester monomer, units derived from a (meth) acrylic acid ester monomer containing a hydroxyl group, units derived from a (meth) acrylic alkyl ester monomer and units derived from a free radical polymerizable hindered amine light stabilizer. The two-component acrylate adhesive can significantly improve the high-temperature yellowing resistance, secondary construction performance and stability under high-temperature and high-humidity environments.

The present disclosure relates to a separator for an electrochemical device, the separator having a coating layer including a non-crosslinked copolymer as a binder, the copolymer including i) a repeating unit derived from an acrylic monomer having a hydroxyl group, ii) a repeating unit derived from a (meth)acrylic monomer, a (meth)acrylic salt monomer, or both, and iii) a repeating unit derived from an acrylic monomer having an amide group. Since the non-crosslinked copolymer includes i) a repeating unit derived from an acrylic monomer having a hydroxyl group and ii) a repeating unit derived from a (meth)acrylic monomer, a (meth)acrylic salt monomer, or both, in a molar ratio ranging from 1:0.1 to 1:1, the separator exhibits improved thermal shrinkage not only in a dry state but also in a wet state.

The present disclosure provides an optical member and an optical display apparatus including the optical member. The optical member includes: an adhesive layer; a transmittance control layer formed on an upper surface of the adhesive layer; and a base film formed on an upper surface of the transmittance control layer. The transmittance control layer includes a (meth)acrylic copolymer and a dye mixture. The dye mixture includes a first dye having a maximum absorption wavelength from 400 nm to 440 nm, a second dye having a maximum absorption wavelength from 480 nm to 520 nm, a third dye having a maximum absorption wavelength from 570 nm to 610 nm, and a fourth dye having a maximum absorption wavelength from 650 to 700 nm. The (meth)acrylic copolymer includes a cycloaliphatic group-containing (meth)acrylic copolymer having a glass transition temperature from 50° C. to 150° C. The cycloaliphatic group-containing (meth)acrylic copolymer comprises from 35 wt % to 70 wt % of a cycloaliphatic group-containing (meth)acrylic monomer.

The present invention provides a technology relating to corrosion prevention of water systems for better suppressing corrosion of metals in contact with water. A corrosion prevention method for a water system for inhibiting corrosion of a metal in contact with the water system, comprising: A corrosion prevention method for an aqueous system, which uses a phosphorus compound, a film-forming amine, and a copolymer of a (meth)acrylic acid monomer and a sulfonic acid group-containing monomer, the copolymer having a weight-average molecular weight of 500 to 100,000, in the aqueous system. A metal corrosion inhibitor containing a phosphorus compound, a film-forming amine, and a low-molecular-weight polymer having a weight-average molecular weight of 500 to 100,000, and a corrosion prevention method for an aqueous system, which uses the metal corrosion inhibitor to inhibit corrosion of metals in contact with water.

The present invention relates to a separator for an electrochemical device, the separator comprising a coating layer including a non-crosslinked copolymer as a binder, wherein the non-crosslinked copolymer includes i) repeating units derived from an acrylic monomer having a hydroxyl group, ii) repeating units derived from a (meth)acrylic acid monomer, a (meth)acrylate monomer, or both monomers, and iii) repeating units derived from an acrylic monomer having an amide group. The copolymer includes i) repeating units derived from an acrylic monomer having a hydroxyl group and ii) repeating units derived from a (meth)acrylic acid monomer, a (meth)acrylate monomer, or both monomers in a molar ratio of 1: 0.1-1, thereby improving a heat shrinkage rate in both dry and wet states.

The invention discloses a protective film and adhesive composition. The adhesive composition includes 100 parts by weight of a polymer resin, 3 to 15 parts by weight of a curing agent, and 0.2 to 3 parts by weight of an accelerator. The monomers for synthesizing the polymer resin comprise a first monomer and a second monomer, the first monomer is the monomer with the highest carbon number in the monomers for synthesizing the polymer resin, the second monomer is the monomer with the second highest carbon number in the monomers for synthesizing the polymer resin, and the mole number ratio of the second monomer to the first monomer is 0.15-6. Monomers for synthesizing the polymer resin comprise an acrylic monomer and a methacrylic acid monomer, and the carbon number of the acrylic monomer is higher than that of the methacrylic acid monomer. When the protective film is attached to a base material, the protective film has good attaching smoothness, and no adhesive residue is generated after the protective film is torn off.

Provided are: a resin composition containing 30-85 parts by mass of an acrylic resin (A) and 15-70 parts by mass of an aromatic vinyl resin (B), the acrylic resin (A) contains 60-95% by mass of a (meth) acrylic monomer unit and 5-40% by mass in total of at least one selected from the group consisting of a glutaric anhydride unit, a glutaric imide unit, an N-substituted maleimide unit and a lactone ring unit. The aromatic vinyl resin (B) contains 55-93% by mass of an aromatic vinyl monomer unit and 7-45% by mass of an N-substituted maleimide unit.

A method for preventing metal corrosion in water systems is provided, which minimizes the use of phosphorus compounds or metal salt compounds that contribute to eutrophication or water toxicity, thus reducing their impact on the aquatic environment, and is applicable to a wide range of water qualities. This invention provides a method for preventing metal corrosion in water systems using: a copolymer of (meth)acrylic acid monomer and a sulfonic acid-containing monomer, and an organic acid compound with an organic acid corrosion resistance index of 4 or higher.

The application discloses a kind of water-based acrylic polyurethane paint and preparation method thereof, belong to water-based paint preparation technical field, the water-based acrylic polyurethane paint includes A component and B component, the A component includes modified hydroxyl acrylic resin aqueous dispersion, auxiliary agent and deionized water, the B component includes aliphatic isocyanate and solvent B.The methyl methacrylate monomer of the application is functionally modified, and the histidinol containing imidazole group and hydroxymethyl is connected into the methyl methacrylate structure containing carbon-carbon double bond through amide bond, to form new functional monomer;The monomer is copolymerized into the main chain of acrylic resin by double bond, so that the modified resin side chain has imidazole group, hydroxymethyl group.Relying on weak base catalysis and metal coordination effect of imidazole group, the adhesion and crosslinking density of paint film can be improved, and it is suitable for the protection and decoration of various metal, non-metal substrate.

To provide an optical member whose change in light transmittance is small even after long exposure to ultraviolet rays under a condition that temperature repeatedly changes between normal temperature and high temperature.SOLUTION: An optical member and an optical display device including an adhesive layer, and a light transmission adjusting layer and a base material film formed in order on an upper surface of the adhesive layer are provided. The light transmission adjusting layer includes a (meth)acrylic copolymer and a mixture of dyes. The mixture of the dyes includes a first dye with a maximum absorption wavelength of 400 nm to 440 nm, a second dye with a maximum absorption wavelength of 480 nm to 520 nm, a third dye with a maximum absorption wavelength of 570 nm to 610 nm, and a fourth dye with a maximum absorption wavelength of 650 nm to 700 nm. The (meth)acrylic copolymer has a glass transition temperature of 50°C to 150°C and is an alicyclic group-containing (meth)acrylic copolymer. The (meth)acrylic copolymer is a copolymer of a monomer mixture containing 35 wt% to 70 wt% of the alicyclic group-containing (meth)acrylic monomer.SELECTED DRAWING: Figure 1

An adhesive protective film for polyimide-based optical devices containing polyimide ash, an optical member, and an optical display apparatus including the same are disclosed. The adhesive protective film includes a cured product of a composition comprising: a (meth)acrylic copolymer; a curing agent; a (meth)acrylic oligomer; and an aromatic group-containing mono- or higher functional (meth)acrylic monomer, wherein the adhesive protective film has a storage modulus of 0.1 MPa or less at −20° C., a peel strength of 350 gf / inch or more at 60° C. and 93% RH (relative humidity) with respect to a polyimide-based optical device containing a polyimide ash, and a creep of 40% or less at 60° C.

Disclosed is a composition for forming a coating layer of a separator for an electrochemical device, the composition comprising a polymer binder and inorganic particles, wherein the polymer binder includes a copolymer including i) a (meth)acrylic acid monomer, a (meth)acrylic acid salt monomer, or a repeating unit derived from these two monomers, and ii) a repeating unit derived from an acrylic monomer having an amide group, the copolymer has a weight average molecular weight of 10,000 to 500,000, the inorganic particles include an aluminum hydroxide oxide, and the inorganic particles have an average particle diameter D50 of 0.33 to 1.5 μm.

To provide a decorative sheet excellent in light resistance even when a surface protective layer containing a biomass-derived component is formed, and a transfer film.SOLUTION: A decorative sheet comprising at least a transparent resin layer and a surface-protecting layer, wherein the surface-protecting layer contains a cross-linked curable resin as a main component, an ultraviolet absorber, and a light stabilizer, the cross-linked curable resin contains at least one biomass-derived component and at least one (meth) acrylic monomer, and the ultraviolet absorber contains at least two ultraviolet absorbers having a benzotriazole skeleton.SELECTED DRAWING: Figure 1

To provide a pressure-sensitive adhesive composition which has excellent adhesive strength to low-polarity adherends, heat-resistant adhesive strength, and heat-resistant retention, and is excellent in transparency and coating film appearance during processing. [Solution] An adhesive composition comprising an acrylic copolymer (A) having a glass transition temperature of 0°C or lower and a weight average molecular weight of 400,000 to 1,500,000, an acrylic copolymer (B) having a glass transition temperature of 30°C or higher and a weight average molecular weight of 5,000 to 200,000, and a curing agent (C), wherein the copolymer (A) is a copolymer of a monomer mixture containing 0.5% by mass or more and 10% by mass or less of a nitrogen-containing monomer (a1) based on 100% by mass of the monomer mixture, and the copolymer (B) is a copolymer of a monomer mixture containing a (meth)acrylic monomer (b1) having a glass transition temperature of 80°C or higher and a (meth)acrylic monomer (b2) having a carboxy group, and the content of the copolymer (B) relative to 100 parts by mass of the copolymer (A) is 5 parts by mass or more and 50 parts by mass or less.

This invention provides a pigment dispersion with good storage stability, using a halogen-free pigment as a coloring agent, as an alternative to CI Pigment Green 7, a representative green pigment. [Solution] A pigment dispersion containing a first pigment, a second pigment, a first dispersant for dispersing the first pigment, a second dispersant for dispersing the second pigment, and water. The first pigment is a pigment that does not have halogen elements as substituents, and is at least one selected from the group consisting of phthalocyanine pigments and cyanide pigments having an anthraquinone skeleton. The second pigment is a pigment that does not have halogen elements as substituents, and is at least one selected from the group consisting of a yellow pigment having a monoazo skeleton, a yellow pigment having a disazo skeleton, a yellow pigment having a benzimidazolon skeleton, and a yellow pigment having an isoindoline skeleton. The first dispersant and the second dispersant are copolymers having units derived from styrene monomers and units derived from (meth)acrylic acid monomers.

To provide an adhesive composition exhibiting suitable performance for use as an adhesive composition and enabling formation of a flame-retardant adhesive cured product.SOLUTION: An adhesive composition comprises a first agent containing an organic peroxide and a second agent containing a reducing agent, wherein each of (a) a monofunctional (meth)acrylic monomer, (b) (meth)acrylic acid and / or hydroxyalkyl (meth)acrylate, and (c) a thickener is contained in at least one of the first agent and the second agent, and at least one of the first agent and the second agent further contains a reactive flame retardant.SELECTED DRAWING: None

To provide a composite member made of different resins that is excellent in strength, heat resistance, rigidity and assembly cycle property of a welded part.SOLUTION: In a composite member of different resins in which an acrylic resin member made of an acrylic resin composition and a styrene resin member made of a styrene resin composition having a Vicat softening temperature of 105°C or higher are welded together, the acrylic resin composition has a methyl methacrylate monomer unit content of more than 50 mass%, and the styrene resin composition has a styrene monomer unit content of more than 50 mass% and a methacrylic acid monomer unit content of 3 mass% or more, and a three-dimensional plot distance (HSP distance) between a Hansen solubility parameter (HSP) value of a chloroform-soluble matter of the styrene resin composition and the Hansen solubility parameter (HSP) value of the chloroform-soluble matter of the acrylic resin composition is 4.0 or less.SELECTED DRAWING: Figure 1

To provide a polymer having a low viscosity even if having a high molecular weight, a resin composition for coating containing the polymer, and a film using the resin composition for coating.SOLUTION: A polymer having a structural unit derived from a styrenic monomer (A), a structural unit derived from a methacrylic monomer (B), and a structure derived from a chain transfer agent (C) represented by the following general formula (1): Wherein R ' is hydrogen, halogen, - OC (= O) R ", - C (= O) NH2, - CN, - C (= O) OR ", or aryl, and Y is - SR ", halogen, - SO2R ", - P (= O) (OR ") 2, - SnR " 3, - SiR " 3, or - C (= O) OR ". Each R " independently represents an alkyl group, a cycloalkyl group, an aryl group, or a heterocyclic group. ) SELECTED DRAWING: None

Provided is a cured product of a photosensitive resin composition. The photosensitive resin composition contains a maleimide resin, a (meth)acrylic monomer, and a photopolymerization initiator. The maleimide resin is a reaction product of a tetracarboxylic dianhydride (a1), an amine (a2), and maleic anhydride (a3). The amine (a2) includes a dimer diamine and the (meth)acrylic monomer includes a multifunctional (meth)acrylic monomer. The cured product has a Tg of 80°C or more and a coefficient of linear expansion at -20°C to 40°C of 120 ppm / °C or less.