Ethylene / alpha-olefin interpolymer composition containing partially hydrogenated rosin ester

Abstract

A composition comprising at least the following components, namely, a) an ethylene / alpha-olefin interpolymer having the following properties: i) melt index (I2) ≤ 10 dg / min, ii) density of 0.855 to 0.895 g / cc, and b) a partially hydrogenated rosin ester tackifier.

Description

[Background technology]

[0001] Hot melt adhesives are generally compound compositions based on a blend of polymers and tackifiers. The polymers and tackifiers are carefully selected to form high-performance hot melt adhesives (HMAs). There is a need for adhesive compositions that offer improved bonding performance in hygienic applications and contain tackifiers derived from natural, renewable resources.

[0002] International Publication No. WO2019 / 037039 discloses a composition comprising (A) an ethylene-based interpolymer having a density of 0.860 g / cc to 0.900 g / cc and (ii) a melt viscosity of 50,000 mPa·s or less at 177°C, and (B) a rosin ester containing (i) 75 mol% or more of aliphatic carbon based on the total number of moles of carbon in the rosin ester and (ii) 3.0 mol% or less of ester group carbon based on the total number of moles of carbon in the rosin ester (see abstract). The rosin ester is described on pages 8-13.

[0003] U.S. Patent No. 7,199,180 discloses adhesive compositions comprising at least one homogeneous ethylene / alpha-olefin interpolymer and a tackifier. This reference generally discloses several types of tackifiers, including rosin and rosin esters (see column 15, lines 43-49, column 46, lines 14-18 (hydrogenated rosin esters)). Specifically, this reference discloses the following rosin esters: FLORAL 105, pentaerythritol ester of hydrogenated rosin (see column 30, lines 13-15; column 33, Table 5; column 35, lines 1-2 and 15-17), and SYLVATAC 1103, rosin ester (see column 38, Table 8A, column 53, Table 18C).

[0004] U.S. Patent No. 6,582,829 discloses a hot-melt adhesive composition comprising: a) at least one homogeneous linear or substantially linear ethylene / alpha-olefin interpolymer having a density of 0.850 to 0.965 g / cm³ in an amount of about 5% to about 50% by weight; b) at least one block copolymer in an amount of about 1% to about 40% by weight; and c) at least one tackifying resin in an amount of about 10% to about 75% by weight (see abstract). Several types of tackifiers, including rosin and rosin esters, are generally disclosed in this reference (see column 7, line 64 to column 8, line 2).

[0005] U.S. Patent No. 9,115,299 discloses a low-application-temperature hot-melt adhesive containing an olefin copolymer having an average melt index greater than 5 g / 10 min but less than approximately 35 g / 10 min at 190°C (see abstract). The adhesive is disclosed to be useful in the construction of nonwoven articles (see abstract). This reference generally discloses several tackifiers, including hydrogenated and non-hydrogenated rosins and rosin esters (see column 6, lines 26-35 and 56-67). Specifically, this reference discloses SYLVALITE RE 100, a pentaerythritol rosin ester (see column 11, lines 44-46; column 13, Table 3A; column 14, lines 26-34).

[0006] International Publication No. WO2015 / 013472 discloses a composition comprising the following components: A) an anhydride and / or carboxylic acid-functionalized ethylene / alpha-olefin interpolymer having the following properties: i) a melt viscosity of 50,000 cP or less (177°C) and ii) a density of 0.855 to 0.895 g / cc; B) a rosin-based tackifier selected from i) partially hydrogenated glycerol esters, ii) fully hydrogenated pentaerythritol esters, iii) fully hydrogenated glycerol esters, iv) non-hydrogenated esters having a Tg of 30°C to 50°C, or v) a combination thereof (see abstract and claim 1). Specific rosin-based tackifiers are listed in Table 2 (see page 27).

[0007] Further adhesive compositions are disclosed in the following references: U.S. Patent No. 6,319,979, U.S. Publication No. 2014 / 0037876, and International Publication No. WO2018 / 176250.

[0008] However, as mentioned above, there is still a need for adhesive compositions that have improved adhesive performance for hygienic applications and contain tackifiers derived from natural, renewable resources. This need has been met by the following invention. [Overview of the project]

[0009] At least the following components, namely, a) Ethylene / alpha-olefin interpolymer having the following properties: i) Melt index (I2) ≤ 10 dg / min, ii) Density of 0.855 to 0.895 g / cc, b) Partially hydrogenated rosin ester tackifier, A composition containing the following: [Modes for carrying out the invention]

[0010] Compositions with good adhesive properties have been discovered that are well-suited for bonding components of sanitary items, such as diaper components. These compositions also contain partially hydrogenated rosin esters based on natural and renewable resources. These rosin esters have been found to have excellent compatibility with relatively high molecular weight (I2 ≤ 10 dg / min) ethylene / alpha-olefin interpolymers.

[0011] As mentioned above, at least the following Ingredients, that is, a) Ethylene / alpha-olefin interpolymer having the following properties: i) Melt index (I2) ≤ 10 dg / min, ii) Density of 0.855 to 0.895 g / cc, b) Partially hydrogenated rosin ester tackifier, A composition containing the following is provided.

[0012] The above composition may include a combination of two or more embodiments as described herein. Each component of the composition may include a combination of two or more embodiments as described herein.

[0013] In one embodiment or a combination of two or more embodiments described herein, the composition comprises the sum of components a and b in an amount of ≥50.0% by weight, ≥55.0% by weight, or ≥60.0% by weight, or ≥62.0% by weight, or ≥65.0% by weight, or ≥67.0% by weight, or ≥70.0% by weight, or ≥75.0% by weight, based on the weight of the composition. In one embodiment or a combination of two or more embodiments described herein, the composition comprises the sum of components a and b in an amount of ≤100.0% by weight, or ≤95.0% by weight, or ≤90.0% by weight, or ≤85.0% by weight, or ≤80.0% by weight, based on the weight of the composition.

[0014] In one embodiment or a combination of two or more embodiments described herein, the ethylene / alpha-olefin interpolymer (component a) has a melt index (I2) of ≥0.2, or ≥0.4, or ≥0.6, or ≥0.8, or ≥0.9, or ≥1.0 dg / min. In one embodiment or a combination of two or more embodiments described herein, the ethylene / alpha-olefin interpolymer (component a) has a melt index (I2) of ≤9.0, or ≤8.0, or ≤7.0, or ≤6.0, or ≤5.0, or ≤4.0, or ≤3.0, or ≤2.0 dg / min.

[0015] In one embodiment or in a combination of two or more embodiments described herein, the partially hydrogenated rosin ester tackifier (component b) is partially derived from glycerol, pentaerythritol, triethylene glycol, and further from an alcohol selected from glycerol or pentaerythritol.

[0016] In one embodiment, or a combination of two or more embodiments each described herein, component b comprises, as determined by 13C NMR, based on the total moles of carbon in the rosin ester, ≧3.0 mol%, or ≧3.5 mol%, or ≧3.8 mol%, or ≧4.0 mol%, or ≧4.2 mol%, or ≧4.4 mol% of ester group carbon. In one embodiment, or a combination of two or more embodiments each described herein, component b comprises, as determined by 13C NMR, based on the total moles of carbon in the rosin ester, ≦20.0 mol%, or ≦15.0 mol%, or ≦10.0 mol%, or ≦8.0 mol%, or ≦7.0 mol%, or ≦6.5 mol%, or ≦6.0 mol%, or ≦5.5 mol%, or ≦5.0 mol% of ester group carbon.

[0017] In one embodiment, or a combination of two or more embodiments each described herein, component b comprises, as determined by 13C NMR, based on the total moles of carbon in the rosin ester, ≧60.0 mol%, or ≧62.0 mol%, or ≧65.0 mol%, or ≧67.0 mol%, or ≧68.0 mol%, or ≧70.0 mol%, or ≧72.0 mol%, or ≧74.0 mol%, or ≧75.0 mol%, or ≧76.0 mol%, or ≧77.0 mol%, or ≧78.0 mol% of aliphatic carbon. In one embodiment, or a combination of two or more embodiments each described herein, component b comprises, as determined by 13C NMR, based on the total moles of carbon in the rosin ester, ≦90.0 mol%, or ≦88.0 mol%, or ≦86.0 mol%, or ≦84.0 mol%, or ≦82.0 mol%, or ≦80.0 mol% of aliphatic carbon.

[0018] In one embodiment, or a combination of two or more embodiments each described herein, component b is a partially hydrogenated rosin ester tackifier.

[0019] In one embodiment or a combination of two or more embodiments each described herein, the ethylene / alpha-olefin interpolymer (component a) is an ethylene / alpha-olefin copolymer.

[0020] In one embodiment or a combination of two or more embodiments each described herein, the composition comprises, based on the weight of the composition, ≧10.0 wt%, or ≧15.0 wt%, or ≧20.0 wt%, or ≧25.0 wt%, or ≧30.0 wt%, or ≧35.0 wt%, or ≧40.0 wt%, or ≧45.0 wt%, or ≧50.0 wt%, or ≧52.0 wt%, or ≧54.0 wt%, or ≧56.0 wt%, or ≧58.0 wt% of component b. In one embodiment or a combination of two or more embodiments each described herein, the composition comprises, based on the weight of the composition, ≦70.0 wt%, or ≦69.0 wt%, or ≦68.0 wt%, or ≦67.0 wt%, or ≦66.0 wt%, or ≦65.0 wt%, or ≦64.0 wt%, or ≦63.0 wt%, or ≦62.0 wt%, or ≦61.0 wt%, or ≦60.0 wt% of component b.

[0021] In one embodiment or a combination of two or more embodiments each described herein, the weight ratio of component b to component a is ≧2.00, or ≧2.50, or ≧3.00, or ≧3.20, or ≧3.40, or ≧3.60, or ≧3.80, or ≧4.00, or ≧4.10, or ≧4.20, or ≧4.30.

[0022] F2. In one embodiment or a combination of two or more embodiments each described herein, the weight ratio of component b to component a is ≦10.0, or ≦9.5, or ≦9.0, or ≦8.8, or ≦8.6, or ≦8.4, or ≦8.2, or ≦8.0.

[0023] In one embodiment or a combination of two or more embodiments each described herein, the composition further comprises an oil (component c).

[0024] In one embodiment or a combination of two or more embodiments described herein, the weight ratio of component b to component c is ≥1.20, or ≥1.40, or ≥1.60, or ≥1.80, or ≥2.00, or ≥2.20, or ≥2.40, or ≥2.60, or ≥2.80, or ≥2.90, or ≥2.95. In one embodiment or a combination of two or more embodiments described herein, the weight ratio of component b to component c is ≤5.00, or ≤4.50, or ≤4.00, or ≤3.80, or ≤3.60, or ≤3.50, or ≤3.40, or ≤3.30.

[0025] In one embodiment or a combination of two or more embodiments described herein, the composition further comprises a second ethylene / alpha-olefin interpolymer (component d), wherein the I2 of component d is higher than the I2 of component a.

[0026] In one embodiment or a combination of two or more embodiments described herein, the second ethylene / alpha-olefin interpolymer (component d) has a melt index (I2) of ≤2000, or ≤1800, or ≤1600, or ≤1400, or ≤1200, or ≤1100, or ≤1000 dg / min. In one embodiment or a combination of two or more embodiments described herein, the second ethylene / alpha-olefin interpolymer (component d) has a melt index (I2) of ≥200, or ≥250, or ≥300, or ≥350, or ≥400, or ≥420, or ≥440, or ≥460, or ≥480, or ≥500 dg / min.

[0027] In one embodiment or a combination of two or more embodiments described herein, the second ethylene / alpha-olefin interpolymer (component d) is ≥0.856 g / cc, or ≥0.858 g / cc, or ≥0.860 g / cc, or ≥0.862 g / cc, or ≥0.864 g / cc, or ≥0.866 g / cc, or ≥0.868 g / cc, or ≥0.869 g / cc (1 cc = 1 cm³) 3) has a density of ≤0.894 g / cc, or ≤0.892 g / cc, or ≤0.890 g / cc, or ≤0.888 g / cc, or ≤0.886 g / cc, or ≤0.884 g / cc, or ≤0.882 g / cc, or ≤0.880 g / cc, or ≤0.878 g / cc, or ≤0.876 g / cc, or ≤0.875 g / cc, or ≤0.874 g / cc.

[0028] In one embodiment or a combination of two or more embodiments described herein, the second ethylene / alpha-olefin interpolymer (component d) is an ethylene / alpha-olefin copolymer.

[0029] In one embodiment or a combination of two or more embodiments described herein, the weight ratio of component b to component d is ≥1.00, or ≥1.50, or ≥2.00, or ≥2.50, or ≥3.00, or ≥3.20, or ≥3.40, or ≥3.60, or ≥3.80, or ≥4.00, or ≥4.20, or ≥4.40, or ≥4.60. In one embodiment or a combination of two or more embodiments described herein, the weight ratio of component b to component d is ≤7.00, or ≤6.50, or ≤6.00, or ≤5.80, or ≥5.50, or ≤5.20, or ≤5.00.

[0030] In one embodiment or a combination of two or more embodiments described herein, the composition has a pressure of ≥1,000 mPa·s, or ≥1,500 mPa·s, or ≥2,000 mPa·s, or ≥2,500 mPa·s, or ≥3,000 mPa·s, or ≥3,500 mPa·s, or ≥4,000 mPa·s, or ≥4,200 mPa·s, or ≥4,5 It has a melt viscosity (at 150°C) of 00 mPa·s, or ≥4,700 mPa·s, or ≥5,000 mPa·s, or ≥5,200 mPa·s, or 5,500 mPa·s, or ≥5,700 mPa·s, or ≥6,000 mPa·s, or ≥6,200 mPa·s, or ≥6,500 mPa·s, or ≥6,700 mPa·s, or ≥7,000 mPa·s. In one embodiment or a combination of two or more embodiments described herein, the composition is ≤30,000 mPa·s, or ≤28,000 mPa·s, or ≤26,000 mPa·s, or ≤24,000 mPa·s, or ≤22,000 mPa·s, or ≤20,000 mPa·s, ≤18,000 mPa·s, or ≤16,000 mPa·s, or ≤14 It has a melt viscosity (at 150°C) of 0,000 mPa·s, or ≤12,000 mPa·s, or ≤10,000 mPa·s, or ≤9,500 mPa·s, or ≤9,000 mPa·s, or ≤8,500 mPa·s, or ≤8,000 mPa·s, or ≤7,800 mPa·s, or ≤7,600 mPa·s, or ≤7,400 mPa·s, or ≤7,200 mPa·s.

[0031] In one embodiment or a combination of two or more embodiments described herein, the composition has an average peeling force at 5gsm of ≥1.50, or ≥1.60, or ≥1.80, or ≥2.00, or ≥2.20, or ≥2.40, or ≥2.50 N / 25mm. In one embodiment or a combination of two or more embodiments described herein, the composition has an average peeling force at 5gsm of ≤8.0, or ≤7.0, or ≤6.0, or ≤5.0 N / 25mm.

[0032] In one embodiment or a combination of two or more embodiments described herein, the composition is an adhesive, and moreover, a hot melt adhesive or a pressure-sensitive adhesive, and moreover, a hot melt adhesive.

[0033] Also provided are articles comprising at least one component formed from a composition of any one embodiment or a combination of two or more embodiments described herein. In one embodiment or a combination of two or more embodiments described herein, the article is a sanitary article, and furthermore, a diaper, an incontinence pad, or medical clothing.

[0034] Ethylene / alpha-olefin interpolymer Ethylene / alpha-olefin interpolymers are polymerized and contain ethylene and alpha-olefins. Examples of alpha-olefins include, but are not limited to, C3-C20 alpha-olefins, C3-C10 alpha-olefins, and C3-C8 alpha-olefins, such as propylene, 1-butene, 1-hexene, and 1-octene.

[0035] Furthermore, examples of such interpolymers include ethylene / alpha-olefin / non-conjugated polyene interpolymers, which, in their polymerization form, contain ethylene, alpha-olefins, and non-conjugated polyenes. Examples of alpha-olefins include, but are not limited to, C3-C20 alpha-olefins, C3-C10 alpha-olefins, and C3-C8 alpha-olefins. In one embodiment, the interpolymer is an ethylene / polyethylene / non-conjugated polyene interpolymer, a terpolymer, and EPDM. A preferred example of a non-conjugated polyene is a C4-C40 non-conjugated diene. Examples of non-conjugated dienes include, but are not limited to, 5-ethylidene-2-norbornene (ENB), 5-vinyl-2-norbornene (VNB), dicyclopentadiene, 1,4-hexadiene or 7-methyl-1,6-octadiene, and further derived from ENB, VNB, dicyclopentadiene or 1,4-hexadiene, and further derived from ENB or VNB, and further derived from ENB.

[0036] Partially hydrogenated rosin ester tackifier Tackifiers are known in the art and may be solid, semi-solid, or liquid at room temperature. The term "hydrogenated rosin ester tackifier" and similar terms refer to esterified and fully hydrogenated rosin resins (e.g., gum rosin, wood rosin, tall oil rosin, etc., and combinations thereof). The term "partially hydrogenated rosin ester tackifier" and similar terms refer to esterified and partially hydrogenated rosin resins (e.g., gum rosin, wood rosin, tall oil rosin, etc., and combinations thereof). Typically, rosin is esterified and then hydrogenated.

[0037] Hydrogenation is a reduction reaction that adds hydrogen to molecules, polymers, etc. Typically, it refers to the addition of a pair of hydrogen atoms to alkene and / or alkyne groups present in molecules, polymers, etc. Hydrogenation typically occurs under catalytic conditions, such as in the presence of nickel, palladium, or platinum. As a result of hydrogenation, complete or total hydrogenation may occur, in which all unsaturated bonds (e.g., alkene and / or alkyne) are saturated at the time of hydrogen addition, or partial hydrogenation may occur, in which some unsaturated bonds remain after hydrogenation.

[0038] "Rosin esters" typically refer to esters prepared via a reaction between rosin acid and an alcohol. The resulting rosin esters are hydrogenated to form hydrogenated or partially hydrogenated rosin ester tackifiers. As esters, rosin esters are understood to contain at least one ester group having an oxygen atom. Rosin esters exclude tackifiers composed only of hydrogen and carbon atoms. "Polyols" are alcohols containing at least two hydroxyl groups (-OH). Examples of polyols include, but are not limited to, glycerol, pentaerythritol, or triethylene glycol.

[0039] "Rosin acid" is a mixture of resin acids, which are carboxylic acids. As shown above, non-limiting examples of suitable rosins include gum rosin, wood rosin, tall oil rosin, and combinations thereof. Non-limiting examples of suitable resin acids include abietic acid, neoabietic acid, dehydroabietic acid, pulsed phosphoric acid, levopimaric acid, pimaric acid, isopimaric acid, and combinations thereof. Some of these acids exist in two or more isomers.

[0040] Suitable partially hydrogenated rosin ester tackifiers include, but are not limited to, STAYBELITE ESTER 5-E RESIN (Synthomer). With respect to these rosin esters, the term "aliphatic carbon" refers to a carbon atom covalently bonded to hydrogen or another carbon via a single bond. The aliphatic carbon level refers to the carbon atoms in the final rosin ester (i.e., the polymerized, esterified, and hydrogenated polymer structure) that are saturated and bonded to hydrogen or another carbon via a single bond. Aliphatic carbon excludes carbons bonded to heteroatoms such as oxygen. The term "ester group carbon" refers to the carbon atoms of the ester group. The "ester group" has the following structure (I):

[0041] [ka] This is the part that has the following characteristics. The "ester group carbon" is the carbon of the ester group in structure (I), in which a carbon atom is bonded to one oxygen atom by a double bond and to a second oxygen atom by a single bond.

[0042] Oils and other additives Non-limiting examples of oils include olefin oligomers, low molecular weight polyolefins, e.g., liquid polybutenes, phthalates, mineral oils, e.g., naphthenic, paraffinic, and hydrogenated paraffinic process oils (e.g., CATENEX T 145 oil), or hydrogenated (white) oils (e.g., KAYDOL oil), vegetable oils and animal oils and their derivatives, petroleum-derived oils, and combinations thereof. In one embodiment or a combination of two or more embodiments described herein, the oil is selected from mineral oils, hydrogenated oils, hydrogenated oils, or petroleum-derived oils. In one embodiment or a combination of two or more embodiments described herein, the oil is selected from hydrogenated paraffinic process oils.

[0043] The compositions of the present invention may contain one or more additives. In embodiments, the composition contains at least one antioxidant. The antioxidant protects the composition from degradation caused by reactions with oxygen induced by heat, light, or residual catalysts present in commercially available materials. Suitable antioxidants include, for example, those commercially available from BASF such as IRGANOX 1010, IRGANOX B225, IRGANOX 1076, and IRGANOX 1726. These antioxidants, acting as radical scavengers, can be used alone or in combination with other antioxidants, such as phosphite antioxidants like IRGAFOS 168, also available from BASF. In embodiments, the composition contains at least one antioxidant in amounts ranging from 0.01% by weight, or 0.02% by weight, or 0.04% by weight, or 0.06% by weight, or 0.08% by weight, or 0.10% by weight, or 0.20% by weight, to 0.30% by weight, or 0.40% by weight, or 0.50% by weight, or 0.60% by weight, or 0.80% by weight, or 1.00% by weight. The weight percentages are based on the total weight of the composition.

[0044] definition Unless otherwise stated, implied in the context, or customary in the art, all parts and percentages are based on weight, and all test methods are current as of the filing date of this disclosure.

[0045] As used herein, the term “composition” includes mixtures of materials comprising the composition, as well as reaction and decomposition products formed from the materials of the composition. Any reaction or decomposition products are typically present in trace or residual amounts.

[0046] As used herein, the term “polymer” refers to a polymer compound prepared by polymerizing multiple monomers, whether of the same or different types. Thus, the general term polymer includes the terms homopolymer (used to refer to a polymer prepared from only one monomer, with the understanding that trace amounts of impurities may be incorporated into the polymer structure) and interpolymer, as defined below. Trace amounts of impurities, such as catalyst residues, may be incorporated into and / or within the polymer. Typically, polymers are stabilized with one or more stabilizers, such as antioxidants, in very small amounts ("ppm") of each.

[0047] As used herein, the term “interpolymer” refers to a polymer prepared by the polymerization of at least two different types of monomers. Thus, the term interpolymer includes the term copolymer (used to refer to a polymer prepared from two different types of monomers) and polymers prepared from three or more different types of monomers.

[0048] As used herein, the term “olefinic polymer” means a polymer that, in its polymeric form, contains 50% by weight or more than half by weight percent of an olefin such as ethylene or propylene (based on the weight of the polymer), and may optionally contain one or more comonomers.

[0049] As used herein, the term “propylene polymer” means a polymer that, in its polymerized form, contains a majority by weight percent of propylene (based on the weight of the polymer) and may optionally contain one or more comonomers.

[0050] As used herein, the term “ethylene-based polymer” means a polymer in its polymerized form that contains 50% by weight or more than half by weight of ethylene (based on the weight of the polymer) and may optionally contain one or more comonomers.

[0051] As used herein, the term "ethylene / alpha-olefin interpolymer" refers to a random interpolymer comprising, in its polymerized form, 50% by weight or more than half by weight of ethylene and an alpha-olefin (based on the weight of the interpolymer).

[0052] As used herein, the term "ethylene / alpha-olefin copolymer" refers to a random copolymer comprising, in its polymerization form, 50% by weight or a majority of ethylene monomer and alpha-olefin as only two monomer types (based on the weight of the copolymer).

[0053] As used herein, the phrase “majority by weight percent” refers to the amount of the monomer present in the polymer (or interpolymer, terpolymer, or copolymer).

[0054] The terms “comprising,” “including,” and “having,” and their derivatives, are not intended to exclude the existence of any additional components, processes, or procedures, whether or not they are specifically disclosed. To avoid any doubt, all compositions claimed through the use of the term “comprising” may, unless otherwise stated, include any additional additives, adjuvants, or compounds, whether polymeric or not. In contrast, the term “consisting essentially of” excludes any other components, processes, or procedures from the scope of any subsequent description, except those not essential to operability. The term “consisting of” excludes any components, processes, or procedures not specifically described or listed.

[0055] List of characteristics of several compositions A] At least the following components, namely, a) Ethylene / alpha-olefin interpolymer having the following properties: i) Melt index (I2) ≤ 10 dg / min, ii) Density of 0.855 to 0.895 g / cc, b) Partially hydrogenated rosin ester tackifier, A composition containing the following: B] The composition according to A] above, wherein the ethylene / alpha-olefin interpolymer (component a) has a melt index (I2) of ≥0.2, or ≥0.4, or ≥0.6, or ≥0.8, or ≥0.9, or ≥1.0 dg / min. The composition according to A] or B] above, wherein the ethylene / alpha-olefin interpolymer (component a) has a melt index (I2) of ≤9.0, or ≤8.0, or ≤7.0, or ≤6.0, or ≤5.0, or ≤4.0, or ≤3.0, or ≤2.0 dg / min. D] Ethylene / alpha-olefin interpolymer (component a) is present in concentrations of ≥0.856 g / cc, ≥0.858 g / cc, or ≥0.860 g / cc, or ≥0.862 g / cc, or ≥0.864 g / cc, or ≥0.866 g / cc, or ≥0.868 g / cc, or ≥0.869 g / cc (1 cc = 1 cm³) 3 A composition according to any one of the above A] to C](A] to C]) having a density of ). E) The composition according to any one of A] to D] above, wherein the ethylene / alpha-olefin interpolymer (component a) has a density of ≤0.894 g / cc, or ≤0.892 g / cc, or ≤0.890 g / cc, or ≤0.888 g / cc, or ≤0.886 g / cc, or ≤0.884 g / cc, or ≤0.882 g / cc, or ≤0.880 g / cc, or ≤0.878 g / cc, or ≤0.876 g / cc, or ≤0.874 g / cc, or ≤0.872 g / cc, or ≤0.871 g / cc. The composition according to any one of A] to E] above, wherein the ethylene / alpha-olefin interpolymer (component a) has a peak melting temperature (Tm) of ≥40.0°C, ≥45.0°C, ≥50.0°C, ≥52.0°C, ≥54.0°C, ≥56.0°C, or ≥58.0°C when determined by DSC. The composition according to any one of A] to F] above, wherein the ethylene / alpha-olefin interpolymer (component a) has a peak melting temperature of ≤80.0°C, or ≤75.0°C, or ≤70.0°C, or ≤68.0°C, or ≤66.0°C, or ≤64.0°C, or ≤62.0°C, or ≤61.0°C, or ≤60.0°C, as determined by DSC. The composition according to any one of A] to G] above, wherein the H]ethylene / alpha-olefin interpolymer (component a) has a glass transition temperature (Tg) of ≥-70.0°C, ≥-65.0°C, ≥-60.0°C, or ≥-55.0°C as determined by DSC. I) The composition according to any one of A] to H] above, wherein the ethylene / alpha-olefin interpolymer (component a) has a glass transition temperature (Tg) of ≤-30.0°C, ≤-35.0°C, ≤-40.0°C, ≤-45.0°C, or ≤-50.0°C as determined by DSC. The composition according to any one of A] to I] above, wherein the ethylene / alpha-olefin interpolymer (component a) has a crystallization temperature (Tc) of ≥20.0°C, ≥25.0°C, ≥30.0°C, ≥35.0°C, ≥40.0°C, or ≥42.0°C as determined by DSC. The composition according to any one of A] to J] above, wherein the K]ethylene / alpha-olefin interpolymer (component a) has a crystallization temperature (Tc) of ≤60.0°C, ≤55.0°C, ≤50.0°C, ≤48.0°C, or ≤46.0°C as determined by DSC. The composition according to any one of A] to K] above, wherein the L]ethylene / alpha-olefin interpolymer (component a) has a Mooney viscosity (ML1+4, 121℃) of ≥2.0, or ≥4.0, or ≥5.0, or ≥6.0, or ≥7.0, or ≥7.5, or ≥8.0. The composition according to any one of A] to L] above, wherein the ethylene / alpha-olefin interpolymer (component a) has a Mooney viscosity (ML1+4, 121℃) of ≤40, or ≤35, or ≤30, or ≤25. The composition according to any one of A] to M] above, wherein the alpha-olefin of the N]ethylene / alpha-olefin interpolymer (component a) is a C3-C20 alpha-olefin, further a C3-C10 alpha-olefin, and further a C3-C8 alpha-olefin. The composition according to any one of A] to N] above, wherein the alpha-olefin of the ethylene / alpha-olefin interpolymer (component a) is selected from propylene, 1-butene, 1-pentene, 1-hexene, or 1-octene, and further selected from propylene, 1-butene, or 1-octene, and further selected from 1-butene or 1-octene, and further selected from 1-octene. The composition according to any one of A] to O] above, wherein P]ethylene / alpha-olefin interpolymer (component a) is ethylene / alpha-olefin copolymer. Q) The composition according to any one of A] to P] above, wherein the ethylene / alpha-olefin interpolymer (component a) is selected from ethylene / propylene copolymer, ethylene / butene copolymer, or ethylene / octen copolymer, and further selected from ethylene / butene copolymer or ethylene / octen copolymer, and further selected from ethylene / octen copolymer. The composition according to any one of A] to Q] above, wherein the R] partially hydrogenated rosin ester tackifier (component b) is selected from glycerol, pentaerythritol, or triethylene glycol, and is further partially derived from an alcohol selected from glycerol or pentaerythritol, and further from an alcohol selected from glycerol. The composition according to any one of A] to R] above, wherein component b [S] contains ≥3.0 mol%, ≥3.5 mol%, ≥3.8 mol%, ≥4.0 mol%, ≥4.2 mol%, or ≥4.4 mol% of ester group carbons, as determined by 13C NMR, based on the total number of moles of carbon in the rosin ester. The composition according to any one of A] to S] above, wherein component T] b contains ≤20.0 mol%, or ≤15.0 mol%, or ≤10.0 mol%, or ≤8.0 mol%, or ≤7.0 mol%, or ≤6.5 mol%, or ≤6.0 mol%, or ≤5.5 mol%, or ≤5.0 mol%, based on the total number of moles of carbon in the rosin ester, as determined by 13C NMR. The composition according to any one of A] to T] above, wherein component b [U] contains ≥60.0 mol%, ≥62.0 mol%, ≥65.0 mol%, ≥68.0 mol%, ≥70.0 mol%, ≥72.0 mol%, ≥74.0 mol%, ≥75.0 mol%, ≥76.0 mol%, ≥77.0 mol%, or ≥78.0 mol% based on the total number of moles of carbon in the rosin ester, as determined by 13C NMR. The composition according to any one of A] to U] above, wherein component b [V] contains ≤90.0 mol%, or ≤88.0 mol%, or ≤86.0 mol%, or ≤84.0 mol%, or ≤82.0 mol%, or ≤80.0 mol%, based on the total number of moles of carbon in the rosin ester, as determined by 13C NMR. The composition according to any one of A] to V] above, wherein component b [W] has an initial melting temperature (Tm) of ≥50°C, ≥60°C, ≥70°C, ≥80°C, or ≥85°C when determined by DSC. The composition according to any one of A] to W] above, wherein component X] b has a final melting temperature (Tm) of ≤100°C, ≤97°C, ≤95°C, ≤92°C, or ≤90°C as determined by DSC. The composition according to any one of A] to X] above, wherein the total of components a and b is ≥ 50.0% by weight, ≥ 55.0% by weight, or ≥ 60.0% by weight, or ≥ 62.0% by weight, or ≥ 65.0% by weight, or ≥ 67.0% by weight, or ≥ 70.0% by weight, or ≥ 75.0% by weight. The composition according to any one of A] to Y] above, wherein the total of components a and b is ≤100.0% by weight, or ≤95.0% by weight, or ≤90.0% by weight, or ≤85.0% by weight, or ≤80.0% by weight. A2) A composition according to any one of A] to Z] above, comprising component a in an amount of ≥2.0% by weight, or ≥3.0% by weight, or ≥4.0% by weight, or ≥5.0% by weight, or ≥5.5% by weight, or ≥6.0% by weight, or ≥6.5% by weight, or ≥7.0% by weight, or ≥7.5% by weight, based on the weight of the composition. B2] A composition according to any one of A] to A2] above, comprising component a in an amount of ≤50.0% by weight, or ≤45.0% by weight, or ≤40.0% by weight, or ≤35.0% by weight, or ≤30.0% by weight, or ≤25.0% by weight, or ≤22.0% by weight, or ≤20.0% by weight, or ≤18.0% by weight, or ≤16.0% by weight, based on the weight of the composition. C2] A composition according to any one of A] to B2] above, comprising component b in an amount of ≥10.0% by weight, or ≥15.0% by weight, or ≥20.0% by weight, or ≥25.0% by weight, or ≥30.0% by weight, or ≥35.0% by weight, or ≥40.0% by weight, or ≥45.0% by weight, or ≥50.0% by weight, or ≥52.0% by weight, or ≥54.0% by weight, or ≥56.0% by weight, or ≥58.0% by weight. D2] A composition according to any one of A] to C2] above, comprising component b in an amount of ≤70.0% by weight, or ≤69.0% by weight, or ≤68.0% by weight, or ≤67.0% by weight, or ≤66.0% by weight, or ≤65.0% by weight, or ≤64.0% by weight, or ≤63.0% by weight, or ≤62.0% by weight, or ≤61.0% by weight, or ≤60.0% by weight. The composition according to any one of A] to D2] above, wherein the weight ratio of component b to component a is ≥2.00, or ≥2.50, or ≥3.00, or ≥3.20, or ≥3.40, or ≥3.60, or ≥3.80, or ≥4.00, or ≥4.10, or ≥4.20, or ≥4.30. The composition according to any one of A] to E2] above, wherein the weight ratio of component b to component a is ≤10.0, or ≤9.5, or ≤9.0, or ≤8.8, or ≤8.6, or ≤8.4, or ≤8.2, or ≤8.0. A composition according to any one of A) to F2) above, further comprising oil (component c) G2). The oil is further selected from mineral oil, hydrogenated oil, hydrogenated oil, or from petroleum-derived oil, further selected from hydrogenated oil, and further selected from hydrogenated paraffinic process oil. The composition according to G2] above, comprising ≥2.0% by weight, or ≥5.0% by weight, or ≥10.0% by weight, or ≥12.0% by weight, or ≥14.0% by weight, or ≥16.0% by weight, or ≥18.0% by weight of oil (component c) based on the weight of the composition H2]. I2] The composition according to G2] or H2] above, comprising, based on the weight of the composition, ≤40.0% by weight, or ≤35.0% by weight, or ≤30.0% by weight, or ≤28.0% by weight, or ≤26.0% by weight, or ≤24.0% by weight, or ≤22.0% by weight, or ≤20.0% by weight of oil. The composition according to any one of the above G2] to I2], wherein the weight ratio of component b to component c is ≥1.20, ≥1.40, or ≥1.60, or ≥1.80, or ≥2.00, or ≥2.20, or ≥2.40, or ≥2.60, or ≥2.80, or ≥2.90, or ≥2.95. The composition according to any one of the above G2] to J2], wherein the weight ratio of component b to component c is ≤5.00, or ≤4.50, or ≤4.00, or ≤3.80, or ≤3.60, or ≤3.50, or ≤3.40, or ≤3.30. The composition according to any one of the above G2] to K2], wherein the weight ratio of component c to component a is ≥1.00, or ≥1.05, or ≥1.10, or ≥1.15, or ≥1.20, or ≥1.25, or ≥1.30. The composition according to any one of the above G2] to L2], wherein the weight ratio of component c to component a is ≤4.00, or ≤3.80, or ≤3.60, or ≤3.40, or ≤3.20, or ≤3.00, or ≤2.90, or ≤2.80, or ≤2.70. The composition according to any one of the above G2] to M2], wherein the total of components a, b, and c is ≥70.0% by weight, ≥75.0% by weight, or ≥80.0% by weight, or ≥82.0% by weight, or ≥84.0% by weight, or ≥86.0% by weight, or ≥87.0% by weight. The composition according to any one of the above G2] to N2], wherein the total of components a, b, and c is ≤100.0% by weight, or ≤99.8% by weight, ≤99.6% by weight, or ≤99.5% by weight. The composition according to any one of A] to O2] above, further comprising a second ethylene / alpha-olefin interpolymer (component d), wherein the I2 of component d is higher than the I2 of component a. Q2] The composition according to P2] above, wherein the second ethylene / alpha-olefin interpolymer (component d) has a melt index (I2) of ≤2000, or ≤1800, or ≤1600, or ≤1400, or ≤1200, or ≤1100, or ≤1000 dg / min. The composition according to P2] or Q2] above, wherein the second ethylene / alpha-olefin interpolymer (component d) has a melt index (I2) of ≥200, or ≥250, or ≥300, or ≥350, or ≥400, or ≥420, or ≥440, or ≥460, or ≥480, or ≥500 dg / min. S2] The second ethylene / alpha-olefin interpolymer (component d) is ≥0.856 g / cc, or ≥0.858 g / cc, or ≥0.860 g / cc, or ≥0.862 g / cc, or ≥0.864 g / cc, or ≥0.866 g / cc, or ≥0.868 g / cc, or ≥0.869 g / cc (1 cc = 1 cm³) 3 A composition according to any one of the above P2] to R2], having a density of ). The composition according to any one of P2] to S2] above, wherein the second ethylene / alpha-olefin interpolymer (component d) has a density of ≤0.894 g / cc, or ≤0.892 g / cc, or ≤0.890 g / cc, or ≤0.888 g / cc, or ≤0.886 g / cc, or ≤0.884 g / cc, or ≤0.882 g / cc, or ≤0.880 g / cc, or ≤0.878 g / cc, or ≤0.876 g / cc, or ≤0.875 g / cc, or ≤0.874 g / cc. The composition according to any one of P2] to T2] above, wherein the second ethylene / alpha-olefin interpolymer (component d) has a melt viscosity (177℃) of ≥4,000 mPa·s, or ≥4,500 mPa·s, or ≥5,000 mPa·s, or ≥5,500 mPa·s, or ≥6,000 mPa·s, or ≥6,500 mPa·s, or ≥7,000 mPa·s, or ≥7,200 mPa·s, or ≥7,400 mPa·s, or ≥7,600 mPa·s, or ≥7,800 mPa·s, or ≥8,000 mPa·s, or 8,100 mPa·s, or ≥8,150 mPa·s. The composition according to any one of P2] to U2] above, wherein the second ethylene / alpha-olefin interpolymer (component d) has a viscosity (177°C) of ≤50,000 mPa·s, or ≤45,000 mPa·s, or ≤40,000 mPa·s, or ≤35,000 mPa·s, or ≤30,000 mPa·s, or ≤28,000 mPa·s, or ≤26,000 mPa·s, or ≤24,000 mPa·s, or ≤22,000 mPa·s, or ≤20,000 mPa·s, or ≤19,000 mPa·s, or ≤18,500 mPa·s, or ≤18,000 mPa·s, or ≤17,500 mPa·s. The composition according to any one of P2] to V2] above, wherein the second ethylene / alpha-olefin interpolymer (component d) has a peak melting point (Tm) of ≥50.0°C, ≥55.0°C, ≥60.0°C, ≥62.0°C, ≥64.0°C, ≥66.0°C, or ≥67.0°C as determined by DSC. X2] The composition according to any one of P2] to W2] above, wherein the second ethylene / alpha-olefin interpolymer (component d) has a peak melting point (Tm) of ≤90.0°C, ≤85.0°C, ≤80.0°C, ≤78.0°C, ≤76.0°C, ≤74.0°C, ≤72.0°C, or ≤71.0°C when determined by DSC. The composition according to any one of P2] to X2] above, wherein the second ethylene / alpha-olefin interpolymer (component d) has a glass transition temperature (Tg) of ≤-40.0°C, ≤-45.0°C, ≤-50.0°C, ≤-51.0°C, ≤-52.0°C, ≤-53.0°C, or ≤-54.0°C as determined by DSC. The composition according to any one of P2] to Y2] above, wherein the second ethylene / alpha-olefin interpolymer (component d) has a glass transition temperature (Tg) of ≥-80.0°C, ≥-75.0°C, ≥-70.0°C, ≥-68.0°C, ≥-66.0°C, ≥-64.0°C, ≥-62.0°C, ≥-61.0°C, ≥-60.0°C, or ≥-59.0°C as determined by DSC. A3] The composition according to any one of P2] to Z2] above, wherein the alpha-olefin of the second ethylene / alpha-olefin interpolymer (component d) is a C3-C20 alpha-olefin, further a C3-C10 alpha-olefin, and further a C3-C8 alpha-olefin. B3] The composition according to any one of P2] to A3] above, wherein the alpha-olefin of the second ethylene / alpha-olefin interpolymer (component d) is selected from propylene, 1-butene, 1-pentene, 1-hexene, or 1-octene, and further selected from propylene, 1-butene, or 1-octene, and further selected from 1-butene or 1-octene, and further selected from 1-octene. C3) The composition according to any one of P2] to B3] above, wherein the second ethylene / alpha-olefin interpolymer (component d) is an ethylene / alpha-olefin copolymer. D3) The composition according to any one of P2] to C3] above, wherein the second ethylene / alpha-olefin interpolymer (component d) is selected from ethylene / propylene copolymer, ethylene / butene copolymer, or ethylene / octen copolymer, and further selected from ethylene / butene copolymer or ethylene / octen copolymer, and further selected from ethylene / octen copolymer. The composition according to any one of P2] to D3] above, comprising ≥5.0% by weight, or ≥6.0% by weight, or ≥7.0% by weight, or ≥8.0% by weight, or ≥9.0% by weight, or ≥10.0% by weight of a second ethylene / alpha-olefin interpolymer (component d) based on the weight of the composition. The composition according to any one of P2 to E3 above, comprising ≤60.0% by weight, or ≤50.0% by weight, ≤40.0% by weight, or ≤35.0% by weight, or ≤30.0% by weight, or ≤25.0% by weight, or ≤20.0% by weight, or ≤18.0% by weight, or ≤16.0% by weight, or ≤14.0% by weight of the composition F3]. The composition according to any one of P2] to F3] above, wherein the weight ratio of component b to component d is ≥1.00, or ≥1.50, or ≥2.00, or ≥2.50, or ≥3.00, or ≥3.20, or ≥3.40, or ≥3.60, or ≥3.80, or ≥4.00, or ≥4.20, or ≥4.40, or ≥4.60. The composition according to any one of P2] to G3] above, wherein the weight ratio of component b to component d is ≤7.00, or ≤6.50, or ≤6.00, or ≤5.80, or ≤5.50, or ≤5.20, or ≤5.00. The composition according to any one of P2] to H3] above, wherein the weight ratio of component d to component a is ≥1.00, or ≥1.05, or ≥1.10, or ≥1.15, or ≥1.20, or ≥1.25, or ≥1.30. The composition according to any one of P2] to I3] above, wherein the weight ratio of component d to component a is ≤3.00, or ≤2.80, or ≤2.60, or ≤2.40, or ≤2.20, or ≤2.00, or ≤1.90, or ≤1.80, or ≤1.70. The composition according to any one of P2] to J3] above, comprising the total of components a, b, and d in an amount of ≥60.0% by weight, ≥65.0% by weight, or ≥70.0% by weight, or ≥72.0% by weight, or ≥74.0% by weight, or ≥76.0% by weight, or ≥78.0% by weight. The composition according to any one of P2 to K3 above, wherein the total of components a, b, and d is ≤95.0% by weight, or ≤90.0% by weight, ≤85.0% by weight, or ≤80.0% by weight. The composition according to any one of P2] to L3] above, wherein the total of components a, b, c, and d is ≥80.0% by weight, ≥85.0% by weight, or ≥90.0% by weight, or ≥92.0% by weight, or ≥94.0% by weight, or ≥96.0% by weight, or ≥98.0% by weight. The composition according to any one of P2 to M3 above, comprising the total of components a, b, c, and d in an amount of ≤100.0% by weight, or ≤99.9% by weight, or ≤99.8% by weight, or ≤99.6% by weight, or ≤99.4% by weight, or ≤99.2% by weight, or ≤99.0% by weight. The composition according to any one of A] to N3] above, further comprising a thermoplastic polymer that is different from ethylene / alpha-olefin interpolymer (component a) in one or more characteristics such as the type of monomer, the distribution of monomers, and / or the amount of monomers, density, melt index (I2), Mn, Mw, Mz, MWD, Mooney viscosity (ML1+4, 121℃), V0.1, V100, RR, or any combination thereof, further comprising the thermoplastic polymer according to any one of A] to N3] above, in one or more characteristics such as the type of monomer, the distribution of monomers, and / or the amount of monomers, density, melt index (I2), Mn, Mw, MWD, or any combination thereof. In further embodiments, the thermoplastic polymer also differs from the second ethylene / alpha-olefin interpolymer (component d) in one or more characteristics such as monomer type, monomer distribution, and / or monomer amount, density, melt index (I2), Mn, Mw, Mz, MWD, melt viscosity (177°C), V0.1, V100, RR, or any combination thereof. P3] ≥ 1,000 mPa·s, or ≥ 1,500 mPa·s, or ≥ 2,000 mPa·s, or ≥ 2,500 mPa·s, or ≥ 3,000 mPa·s, or ≥ 3,500 mPa·s, or ≥ 4,000 mPa·s, or ≥ 4,200 mPa·s, or ≥ 4,500 mPa·s, or ≥ 4,700 mPa·s, or ≥ 5,000 mPa·s A composition according to any one of A] to O3] above, having a melt viscosity (at 150°C) of s, or ≥ 5,200 mPa·s, or 5,500 mPa·s, or ≥ 5,700 mPa·s, or ≥ 6,000 mPa·s, or ≥ 6,200 mPa·s, or ≥ 6,500 mPa·s, or ≥ 6,700 mPa·s, or ≥ 7,000 mPa·s. Q3] ≤30,000 mPa·s, or ≤28,000 mPa·s, or ≤26,000 mPa·s, or ≤24,000 mPa·s, or ≤22,000 mPa·s, or ≤20,000 mPa·s, or ≤18,000 mPa·s, or ≤16,000 mPa·s, or ≤14,000 mPa·s, or ≤12,000 mPa·s, or The composition according to any one of A] to P3] above, wherein the composition has a melt viscosity (at 150°C) of ≤10,000 mPa·s, or ≤9,500 mPa·s, or ≤9,000 mPa·s, or ≤8,500 mPa·s, or ≤8,000 mPa·s, or ≤7,800 mPa·s, or ≤7,600 mPa·s, or ≤7,400 mPa·s. The composition according to any one of A] to Q3] above, having an average peeling force at 2gsm of R3] ≥ 1.50, or ≥ 1.60, or ≥ 1.70, or ≥ 1.80, or ≥ 1.90 N / 25 mm. The composition according to any one of A] to R3] above, having an average peeling force at 2gsm of S3] ≤ 8.0, or ≤ 7.0, or ≤ 6.0, or ≤ 5.0 N / 25 mm. The composition according to any one of A] to S3] above, having an average peeling force at 3gsm of T3] ≥ 1.50, or ≥ 1.60, or ≥ 1.80, or ≥ 1.90, or ≥ 2.00, or ≥ 2.10 N / 25 mm. The composition according to any one of A] to T3] above, having an average peeling force at 3gsm of U3] ≤ 8.0, or ≤ 7.0, or ≤ 6.0, or ≤ 5.0 N / 25 mm. The composition according to any one of A] to U3] above, having an average peeling force at 5gsm of V3] ≥ 1.50, or ≥ 1.60, or ≥ 1.80, or ≥ 2.00, or ≥ 2.20, or ≥ 2.40, or ≥ 2.50 N / 25 mm. The composition according to any one of A] to V3] above, having an average peeling force at 5gsm of W3] ≤ 8.0, or ≤ 7.0, or ≤ 6.0, or ≤ 5.0 N / 25 mm. X3] The composition according to any one of A] to W3] above, wherein the ethylene / alpha-olefin interpolymer (component a) has a molecular weight distribution (MWD) of ≥1.2, or ≥1.4, or ≥1.6, or ≥1.8, or ≥2.0 and / or ≤5.0, or ≤4.0, or ≤3.5, or ≤3.0, or ≤2.8, or ≤2.6, or ≤2.4, or ≤2.2. Y3] The composition according to any one of P2] to X3] above, wherein the second ethylene / alpha-olefin interpolymer (component d) has a molecular weight distribution (MWD) of ≥1.2, or ≥1.4, or ≥1.6, or ≥1.8, or ≥2.0 and / or ≤5.0, or ≤4.0, or ≤3.5, or ≤3.0, or ≤2.8, or ≤2.6, or ≤2.4, or ≤2.2. A composition according to any one of A] to Y3] above, which is an adhesive, and further is a hot melt adhesive or a pressure-sensitive adhesive, and further is a hot melt adhesive. A4) An article comprising at least one component formed from any one of the compositions described in A) to Z3) above. B4] Sanitary items, and furthermore, diapers, incontinence pads, or medical clothing, as described in A4 above. C4) A method for forming an adhesive, comprising mixing the compositions described in any one of A) to Y3) above. D4] The method according to C4] above, wherein the adhesive is a hot melt adhesive or a pressure-sensitive adhesive, and moreover, is a hot melt adhesive.

[0056] Test method 13C NMR experimental procedure for rosin esters Using 13C NMR, the aliphatic carbon content, oxygenated carbon content, aromatic carbon content, unsaturated carbon content, ester group content, aldehyde group content, and ketone group content can be measured as follows.

[0057] Sample Preparation (Rosin Ester): Each sample was prepared in tetrachloroethane-d2 by adding approximately 2.7 g of 0.025 M Cr(AcAc)3-containing tetrachloroethane-d2 to 0.20-0.30 g of the sample in a NORELL 1001-7 (10 mm) NMR tube. The sample was dissolved and homogenized by heating the tube and its contents to 150°C using a heating block and heat gun. Homogeneity was ensured by visual inspection of each sample.

[0058] Data acquisition parameters (rosin ester) - Data was acquired using a Bruker 400MHz spectrometer equipped with a Bruker Dual DUL high-temperature CryoProbe. Data was acquired at a sample temperature of 120°C, using 160 scans per data file, a 6-second pulse repetition delay, a 90-degree flip angle, and reverse gate decoupling. Acquisition was performed using a spectral width of 25,000 Hz and a file size of 32K data points. The integration ranges used for the quantification of aliphatic carbon content, oxygenated carbon content, aromatic carbon content, unsaturated carbon content, ester group content, aldehyde group content, and ketone group content are listed in Table A below. The molar percentage of each carbon group can be determined from the peak of interest.

[0059] [Table 1]

[0060] Polymer viscosity The melt viscosity of each polymer (8-10 grams) is measured according to ASTM D3236 using a Brookfield viscometer, Model LVDV-1 Prime, with a Thermosel. Viscosity is measured at 177°C using a spindle SC4-31.

[0061] Melt Index The melt index MI (or I2) of ethylene polymers is measured according to ASTM D-1238 under the conditions of 190°C / 2.16 kg.

[0062] density The density of the polymer is measured by preparing the polymer sample according to ASTM D1928, and then measuring the density according to ASTM D792, Method B, within one hour of pressing the sample.

[0063] Differential Scanning Calorimetry (DSC) Differential scanning calorimetry (DSC) is used to measure the Tm, Tc, Tg, and crystallinity of ethylene-based (PE) polymer samples. Each sample (0.5 g) is compressed and molded into a film at 190°C for 10-15 seconds at 25,000 psi. Approximately 5-8 mg of the film sample is weighed and placed in a DSC pan. The pan is sealed to ensure an airtight atmosphere. The sample pan is placed in the DSC cell and then heated at a rate of approximately 10°C / min to 180°C for PE. The sample is held at this temperature for 3 minutes. Next, in the case of PE, the sample is cooled at a rate of 10°C / min to -90°C and held isothermally at that temperature for 3 minutes. Then, the sample is heated at a rate of 10°C / min until completely melted (second heating). Unless otherwise specified, the melting point (Tm, peak) and glass transition temperature (Tg) of each polymer sample are determined from the second thermal curve, and the crystallization temperature (Tc) is determined from the first cooling curve. The Tg and the respective peak temperatures of Tm and Tc are recorded. The heat of fusion (Hf) determined from the second thermal curve can be divided by the theoretical heat of fusion of 292 J / g for PE, and the degree of crystallinity can be calculated by multiplying this amount by 100 (for example, degree of crystallinity % = (Hf / 292 J / g) × 100 (for PE)).

[0064] Gel permeation chromatography The chromatography system consists of a PolymerChar GPC-IR (Valencia, Spain) high-temperature GPC chromatograph equipped with a built-in IR5 infrared detector (IR5). The autosampler oven compartment is set to 160 degrees Celsius, and the column compartment to 150 degrees Celsius. The column is a mixed-bed column consisting of four AGILENT "Mixed A" 30 cm, 20 microns in series. The solvent for the chromatograph is 1,2,4-trichlorobenzene containing 200 ppm butylated hydroxytoluene (BHT). The solvent source is spurged with nitrogen. The injection volume is 200 microliters, and the flow rate is 1.0 ml / min.

[0065] Calibration of the GPC column set is performed using 21 polystyrene standards with narrow molecular weight distributions ranging from 580 to 8,400,000, arranged in six "cocktail" mixtures with at least a 10-fold gap between individual molecular weights. The standards are purchased from Agilent Technologies. Polystyrene standards are prepared at a concentration of 0.025 grams per 50 ml of solvent for molecular weights above 1,000,000, and 0.05 grams per 50 ml of solvent for molecular weights below 1,000,000. The polystyrene standards are dissolved at 80 degrees Celsius for 30 minutes with gentle stirring. The peak molecular weight of the polystyrene standards is calculated using Equation 1: M ポリエチレン =A × (M ポリスチレン ) B (EQ1) Convert to polyethylene molecular weight using the formula [wherein M is molecular weight, A has a value of 0.4315, and B is equal to 1.0] (as described in Williams and Ward, J. Polym. Sci., Polym. Let., 6, 621 (1968)).

[0066] A quintic polynomial is used to fit the respective polyethylene equivalent calibration points. A slight adjustment (approximately 0.375 to 0.445) is made to A to correct for column resolution and band expansion effects so that linear homopolymer polyethylene standards are obtained at 120,000 Mw.

[0067] The total plate count for the GPC column set is performed using decane (prepared with 0.04 g of TCB in 50 ml and dissolved for 20 minutes with gentle stirring). The plate count (equation 2) and symmetry (equation 3) are calculated using the following equations for a 200 microliter injection:

[0068]

number

[0069]

number

[0070] The samples are prepared semi-automatically using PolymerChar "Instrument Control" software, with the target sample concentration set to "2 mg / mL", and the solvent (containing 200 ppm of BHT) is added into the septum-capped vial pre-sparged with nitrogen via a PolymerChar high-temperature autosampler. The sample is dissolved at 160 degrees Celsius for 2 hours under "low-speed" shaking.

[0071] Mn (GPC) , Mw (GPC) , and Mz (GPC) are calculated based on GPC results using the internal IR5 detector (measurement channel) of a PolymerChar GPC-IR chromatograph according to Equations 4 to 6, using PolymerChar GPCOne™ software, the IR chromatograph with baseline subtracted at each equally spaced data collection point (i), and the polyethylene equivalent molecular weight obtained from the narrow standard calibration curve at point (i) from Equation 1. Equations 4 to 6 are as follows.

[0072] [Formula]

[0073] To monitor deviations over time, a flow rate marker (decane) is introduced into each sample via a micropump controlled by the PolymerChar GPC-IR system. This flow rate marker (FM) is used to linearly correct the pump flow rate (nominal flow rate) for each sample by matching the RV (RV(FM sample)) of each decane peak in the sample with the RV (RV(FM calibrated)) of the decane peak within a narrow standard calibration. Here, it is assumed that any change in the decane marker peak over time is related to a linear shift in the flow rate (effective flow rate) over the entire run. To facilitate the highest accuracy of RV measurement of the flow marker peaks, the least-squares fitting method is used to fit the peaks of the flow marker concentration chromatogram to a quadratic equation. The first derivative of the quadratic equation is then used to solve for the true peak location. After calibrating the system based on the flow marker peak, the effective flow rate (for narrow standard calibration) is calculated using Equation 7: Flow Rate (Effective) = Flow Rate (Apparent) × (RV (FM Calibrated) / RV (FM Sample)) (Equation 7). The flow marker peak processing is performed via PolymerChar GPCOne® software. For an acceptable flow rate correction, the effective flow rate must be within ±0.7% of the apparent flow rate. [Examples]

[0074] A list of commercially available reagents is provided in Table 1.

[0075] [Table 2] * Note: For AFFINITY grades 1900, 1950, and 1000R, Formula "MI=[3.6126(10 (log(η)-6.6928) / -1.1363) -9.3185] The melt index (2.16 kg, 190°C) can be calculated using the formula: MI = I² (where η(cP or mPa·s) = melt viscosity at 350°F (177°C)). **Staybelite Ester 5E contains 79.7 mol% aliphatic carbons and 5.1 mol% ester group carbons. Each mol% is determined by 13C NMR based on the total number of moles of carbon in the rosin ester. *** Residhere ES 100 S contains 69.1 mol% aliphatic carbons and 4.9 mol% ester group carbons. Each mol% is determined by 13C NMR based on the total number of moles of carbon in the rosin ester.

[0076] Preparation of compounded composition (hot melt adhesive) Each compound was prepared using a laboratory-type adhesive mixer (Model Z BladeMixer LUK) consisting of a motor-driven mixing blade, oil heating unit, temperature and rpm control unit, and a mixing chamber with a capacity of approximately 0.25 L. To prepare a "200 g batch" sample, each composition was first prepared by weighing the appropriate amount of each component. The components were added to a preheated (180°C) mixing chamber in the following order until melted: first, polymer, second, oil, and third, tackifier + IRGANOX 1010. To limit thermal or shear decomposition, these components were gently mixed at 180°C and 5 rpm. Next, two mixing stages were used: 3 minutes at 20 rpm, followed by 10 minutes at 66 rpm. The controller setting temperature was 180°C throughout all mixing steps. Each composition was visually inspected for viscosity, and once thoroughly mixed, it was poured onto a receiving substrate. The composition was covered with release paper. The formulations are shown in Tables 2A, 2B, and 2C.

[0077] [Table 3] * Eastman's REGALITE R1090.

[0078] [Table 4] * Eastman's REGALITE R1090.

[0079] [Table 5] * Synthomer's REGALITE R1090.

[0080] Melt viscosity of compounding composition The melt viscosity of each of the above formulations was measured at 150°C according to ASTM D-3236 using a Brookfield RV-DV-II-Pro viscometer and spindle SC4-27. The heating device was set to this temperature (150°C), the spindle was placed inside the heating device, and equilibrated at this temperature. Next, the composition (9.5 g) was weighed in a suitable disposable sample chamber and introduced into the heating device for 5 minutes and / or until melted. The spindle was then placed inside the molten material for approximately 10 minutes. Once the composition and Brookfield component reached the desired temperature (150°C), the spindle speed was set to 20-50 rpm to produce torque values ​​in the range of 70%-90%. Viscosity values ​​were read at 3-minute intervals to monitor viscosity behavior during the experiment. After 30 minutes, the melt viscosity value was reported (viscosity had equilibrated). The results are shown in Tables 3A, 3B, and 3C below.

[0081] Fabrication of laminates for peel test research Each laminate was prepared using a Nordson / JHT lab Coater a Nordson True-Coat Slot Die. A hydrophobic polypropylene (PP) nonwoven fabric (12 gsm) from Fitesa was used together with a breathable backsheet (16 gsm) from ClopayMicroPro FPS K-16M. The compound composition (adhesive) was applied to the nonwoven fabric. The melting tank, transfer hose, and melting applicator were all set to 150°C. The add-on weights of the composition were 5, 3, and 2 gsm (grams / square meter). The line speed was set to 50 m / min, and the pump was set to 25, 15, and 10 RPM for coating weights of 5 gsm, 3 gsm, and 2 gsm, respectively.

[0082] A bonded sheet measuring 200 mm (l) x 150 mm (w) was prepared for each composition. A bonded region of 150 mm x 150 mm was created within each sheet. Each bonded sheet was cut along its length (l) to prepare five test specimens, each with dimensions of 200 mm (l) x 25 ± 0.5 mm (w) and a bonded region of 150 mm x 25 ± 0.5 mm. The bonded region extended across the entire width of each test specimen, from one end of the specimen along its length for a distance of 150 mm. As a result, the remaining length of the test specimen (50 mm) remained unbonded, or an unbonded region of 50 mm x 25 ± 0.5 mm remained. The unbonded nonwoven fabric sheet and backsheet were clamped with their respective pneumatic clamps for the following T-peel test.

[0083] T-Peel Test Research Each test was performed using a Zwick Z010 general-purpose testing machine. As described above, test samples were cut from laminates produced from the coating line. Each laminate sample (25 ± 0.5 mm wide) was fixed to the machine via pneumatic clamps. At the start of the test, the distance between the lower and upper clamps was fixed at 30 mm. The peel force of each sample was measured at a tensile speed of 300 mm / min according to ISO 11339. Data was recorded automatically. A minimum of five laminate test samples were measured per formulation, and the average peel force was reported. The results are shown in Tables 3A, 3B, and 3C below.

[0084] As can be seen from Tables 3A, 3B, and 3C, the compositions of the present invention had excellent peel strength values ​​and contained bio-based tackifiers. The compositions of the present invention are well-suited for use in sanitary articles such as diapers, pads, or medical clothing. Comparative compositions E, F, and J showed inferior peel performance, for example, less than "1.40 N / 25 mm" at a coating weight of 3 gsm. Comparative example B was visually unsuitable, brittle, and unsuitable for coating or further testing. Comparative compositions A, C, D, G, H, and I, like composition E, contained undesirable synthetic tackifiers. These comparative compositions are undesirable because they increase the amount of carbon dioxide released into the atmosphere during the synthesis of the tackifiers.

[0085] [Table 6] * In-comp. = Incompatible (phase separation), cannot be processed.

[0086] [Table 7]

[0087] [Table 8]

Claims

1. At least the following components, namely, a) Ethylene / alpha-olefin interpolymer having the following properties: i) Melt index (I2) ≤ 10 dg / min, ii) Density of 0.855 to 0.895 g / cc, b) Partially hydrogenated rosin ester tackifier, A composition containing the following:

2. The composition according to claim 1, comprising a total of 50.0% to about 100.0% by weight of component a and component b, based on the weight of the composition.

3. The composition according to claim 1 or 2, wherein the ethylene / alpha-olefin interpolymer (component a) has a melt index (I2) of ≥ 0.2 dg / min.

4. The composition according to any one of claims 1 to 3, wherein component b is partially derived from an alcohol selected from glycerin, pentaerythritol, or triethylene glycol.

5. The composition according to any one of claims 1 to 4, wherein component b contains 3.0 mol% to 20.0 mol% of ester group carbons based on the total number of moles of carbon in the rosin ester, as determined by 13C NMR.

6. The composition according to any one of claims 1 to 5, wherein component b contains 60.0 mol% to 90.0 mol% of aliphatic carbon based on the total number of moles of carbon in the rosin ester, as determined by 13C NMR.

7. The composition according to any one of claims 1 to 6, wherein the ethylene / alpha-olefin interpolymer (component a) is an ethylene / alpha-olefin copolymer.

8. The composition according to any one of claims 1 to 7, comprising 10.0% to about 70.0% by weight of component b, based on the weight of the composition.

9. The composition according to any one of claims 1 to 8, wherein the weight ratio of component b to component a is 2.00 to 10.

0.

10. The composition according to any one of claims 1 to 9, further comprising oil (component c).

11. The composition according to any one of claims 1 to 10, wherein the weight ratio of component b to component c is 1.20 to 5.

00.

12. The composition according to any one of claims 1 to 11, further comprising a second ethylene / alpha-olefin interpolymer (component d), wherein the I2 of component d is higher than the I2 of component a.

13. The composition according to claim 12, wherein the second ethylene / alpha-olefin interpolymer (component d) has a melt index (I2) of 200 to 2000 dg / min.

14. The composition according to claim 12 or claim 13, wherein the second ethylene / alpha-olefin interpolymer (component d) has a density of 0.856 g / cc to 0.894 g / cc.

15. The composition according to any one of claims 12 to 14, wherein the second ethylene / alpha-olefin interpolymer (component d) is an ethylene / alpha-olefin copolymer.

16. The composition according to any one of claims 12 to 15, wherein the weight ratio of component b to component d is 1.00 to 7.

00.

17. The composition according to any one of claims 1 to 16, having a melt viscosity (150°C) of 1,000 mPa·s to 30,000 mPa·s.

18. The composition according to any one of claims 1 to 17, having an average peeling force of 1.50 to 8.00 N / 25 mm at 5 gsm.

19. An adhesive composition according to any one of claims 1 to 18.

20. An article comprising at least one component formed from the composition described in any one of claims 1 to 19.

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