Ethylene / alpha-olefin interpolymer-based compositions containing partially hydrogenated rosin esters

Abstract

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

Description

Background Technology

[0001] Hot melt adhesives are typically formulations based on blends of polymers and tackifying resins. Careful selection of polymers and tackifying resins is crucial for creating high-performance hot melt adhesives (HMAs). Adhesive compositions containing tackifiers derived from natural, renewable resources are needed for improved adhesion properties in hygienic applications.

[0002] International publication WO2019 / 037039 discloses a composition comprising: (A) an ethylene-based interpolymer having (i) a density of 0.860 g / cc to 0.900 g / cc; and (ii) a melt viscosity of less than or equal to 50,000 mPa·s at 177 °C; and (B) a rosin ester containing: (i) greater than or equal to 75 mol% aliphatic carbon based on the total moles of carbon in the rosin ester; and (ii) less than or equal to 3.0 mol% ester-based carbon based on the total moles of carbon in the rosin ester (see abstract). The rosin ester is described on pages 8-13.

[0003] U.S. Patent 7,199,180 discloses an adhesive composition comprising at least one homogeneous ethylene / α-olefin interpolymer and a tackifier. The reference discloses throughout several types of tackifiers, including rosin and rosin esters (see column 15, lines 43–49; column 46, lines 14–18 (hydrogenated rosin esters)). Specifically, the reference discloses the following rosin esters: FLORAL 105, a 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, a rosin ester (see column 38, Table 8A; column 53, Table 18C).

[0004] U.S. Patent 6,582,829 discloses a hot-melt adhesive composition comprising: a) about 5% to about 50% by weight of at least one homogeneous linear or substantially linear ethylene / α-olefin interpolymer, characterized by a density of 0.850 g / cm³ to 0.965 g / cm³; b) about 1% to about 40% by weight of at least one block copolymer; and c) about 10% to about 75% by weight of at least one tackifying resin (see abstract). The reference discloses throughout several types of tackifiers, including rosin and rosin esters (see column 7, line 64 through column 8, line 2).

[0005] U.S. Patent 9,115,299 discloses a hot-melt adhesive with a low application temperature comprising an olefin copolymer with an average melt index at 190°C greater than 5 g / 10 min but less than about 35 g / 10 min (see abstract). This adhesive is disclosed for use in the construction of nonwoven articles (see abstract). The reference discloses throughout several types of tackifiers, including hydrogenated and non-hydrogenated rosin and rosin esters (see column 6, lines 26–35 and 56–67). Specifically, the reference discloses SYLVALITE RE 100 XL, a pentaerythritol rosin ester (see column 11, lines 44–46; column 13, Table 3A; column 14, lines 26–34).

[0006] International publication WO2015 / 013472 discloses a composition comprising: A) an anhydride and / or carboxylic acid-functionalized ethylene / α-olefin interpolymer having the following properties: i) a melt viscosity (177°C) less than or equal to 50,000 cP; and ii) a density of 0.855 g / cc to 0.895 g / cc; B) a rosin-based tackifier; and wherein the tackifier is selected from: i) partially hydrogenated glycerol esters; ii) fully hydrogenated pentaerythritol esters; iii) fully hydrogenated glycerol esters; iv) non-hydrogenated esters with a Tg of 30°C to 50°C; or v) combinations thereof (see abstract and claim 1). Specific rosin tackifiers are listed in Table 2 (see page 27).

[0007] Other adhesive compositions are disclosed in the following references: U.S. Patent 6,319,979; U.S. Publication 2014 / 0037876; International Publication WO2018 / 176250.

[0008] However, as discussed above, there remains a need for adhesive compositions that offer improved adhesion properties in hygienic applications and contain tackifiers derived from natural, renewable resources. The invention described below addresses this need. Summary of the Invention

[0009] A composition comprising at least the following components:

[0010] a) An ethylene / α-olefin interpolymer, wherein the ethylene / α-olefin interpolymer has the following properties:

[0011] i) Melt index (I2) ≤ 10 dg / min.

[0012] ii) Density ranging from 0.855 g / cc to 0.895 g / cc;

[0013] b) Partially hydrogenated rosin ester tackifier. Detailed Implementation

[0014] Compositions with good adhesion and well-suited for adhering components of hygiene products, such as, for example, diaper assemblies, have been discovered. Furthermore, these compositions 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 / α-olefin interpolymers.

[0015] As discussed above, a composition is provided that comprises at least the following components:

[0016] a) An ethylene / α-olefin interpolymer, wherein the ethylene / α-olefin interpolymer has the following properties:

[0017] i) Melt index (I2) ≤ 10 dg / min.

[0018] ii) Density ranging from 0.855 g / cc to 0.895 g / cc;

[0019] b) Partially hydrogenated rosin ester tackifier.

[0020] The above compositions 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.

[0021] In one embodiment or a combination of two or more embodiments described herein, the composition comprises, based on weight, a total of component a and component b ≥ 50.0 wt%, ≥ 55.0 wt%, or ≥ 60.0 wt%, or ≥ 62.0 wt%, or ≥ 65.0 wt%, or ≥ 67.0 wt%, or ≥ 70.0 wt%, or ≥ 75.0 wt%. In one embodiment or a combination of two or more embodiments described herein, the composition comprises, based on weight, a total of component a and component b ≤ 100.0 wt%, or ≤ 95.0 wt%, or ≤ 90.0 wt%, or ≤ 85.0 wt%, or ≤ 80.0 wt%.

[0022] In one or a combination of two or more embodiments described herein, the melt index (I2) of the ethylene / α-olefin interpolymer (component a) is ≥0.2 dg / min, or ≥0.4 dg / min, or ≥0.6 dg / min, or ≥0.8 dg / min, or ≥0.9 dg / min, or ≥1.0 dg / min. In one or a combination of two or more embodiments described herein, the melt index (I2) of the ethylene / α-olefin interpolymer (component a) is ≤9.0 dg / min, or ≤8.0 dg / min, or ≤7.0 dg / min, or ≤6.0 dg / min, or ≤5.0 dg / min, or ≤4.0 dg / min, or ≤3.0 dg / min, or ≤2.0 dg / min.

[0023] In one or a combination of two or more embodiments described herein, the partially hydrogenated rosin ester tackifier (component b) is partially derived from an alcohol selected from glycerol, pentaerythritol, triethylene glycol, and further selected from glycerol or pentaerythritol, and further selected from glycerol.

[0024] In one embodiment or a combination of two or more embodiments described herein, component b comprises, based on the total molar number of carbons in the rosin ester and determined by 13C NMR, ≥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-based carbons. In one embodiment or a combination of two or more embodiments described herein, component b comprises, based on the total molar number of carbons in the rosin ester and determined by 13C NMR, ≤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-based carbons.

[0025] In one embodiment or a combination of two or more embodiments described herein, component b, based on the total molar number of carbons in the rosin ester and determined by 13C NMR, comprises ≥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 carbons. In one embodiment or a combination of two or more embodiments described herein, component b, based on the total molar number of carbons in the rosin ester and determined by 13C NMR, comprises ≤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 carbons.

[0026] In one or a combination of two or more embodiments described herein, component b is a partially hydrogenated rosin ester tackifier.

[0027] In one or a combination of two or more embodiments described herein, the ethylene / α-olefin interpolymer (component a) is an ethylene / α-olefin copolymer.

[0028] In one embodiment or a combination of two or more embodiments described herein, the composition comprises, based on weight, ≥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 described herein, the composition comprises, based on weight, ≤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.

[0029] In one or more embodiments described herein, the weight ratio of component b to component a is ≥2.00, ≥2.50, ≥3.00, ≥3.20, ≥3.40, ≥3.60, ≥3.80, ≥4.00, ≥4.10, ≥4.20, or ≥4.30.

[0030] F2. In one or a combination of two or more embodiments 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.

[0031] In one embodiment or a combination of two or more embodiments described herein, the composition further comprises oil (component c).

[0032] In one or more embodiments described herein, the weight ratio of component b to component c is ≥1.20, ≥1.40, ≥1.60, ≥1.80, ≥2.00, ≥2.20, ≥2.40, ≥2.60, ≥2.80, ≥2.90, or ≥2.95. In one or more embodiments described herein, the weight ratio of component b to component c is ≤5.00, ≤4.50, ≤4.00, ≤3.80, ≤3.60, ≤3.50, ≤3.40, or ≤3.30.

[0033] In one embodiment or a combination of two or more embodiments described herein, the composition further comprises a second ethylene / α-olefin interpolymer (component d), and wherein the I2 of component d is greater than the I2 of component a.

[0034] In one or a combination of two or more embodiments described herein, the melt index (I2) of the second ethylene / α-olefin interpolymer (component d) is ≤2000 dg / min, or ≤1800 dg / min, or ≤1600 dg / min, or ≤1400 dg / min, or ≤1200 dg / min, or ≤1100 dg / min, or ≤1000 dg / min. In one or a combination of two or more embodiments described herein, the melt index (I2) of the second ethylene / α-olefin interpolymer (component d) is ≥200 dg / min, or ≥250 dg / min, or ≥300 dg / min, or ≥350 dg / min, or ≥400 dg / min, or ≥420 dg / min, or ≥440 dg / min, or ≥460 dg / min, or ≥480 dg / min, or ≥500 dg / min.

[0035] In one or a combination of two or more embodiments described herein, the density of the second ethylene / α-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 In one or a combination of two or more embodiments described herein, the density of the second ethylene / α-olefin interpolymer (component d) is ≤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.

[0036] In one or a combination of two or more embodiments described herein, the second ethylene / α-olefin interpolymer (component d) is an ethylene / α-olefin copolymer.

[0037] In one or more embodiments described herein, the weight ratio of component b to component d is ≥1.00, ≥1.50, ≥2.00, ≥2.50, ≥3.00, ≥3.20, ≥3.40, ≥3.60, ≥3.80, ≥4.00, ≥4.20, ≥4.40, or ≥4.60. In one or more embodiments described herein, the weight ratio of component b to component d is ≤7.00, ≤6.50, ≤6.00, ≤5.80, ≤5.50, ≤5.20, or ≤5.00.

[0038] In one or more embodiments described herein, the melt viscosity (150°C) of the composition is ≥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. •s, or ≥4,500 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 or more embodiments described herein, the melt viscosity (150°C) of 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, or ≤18,000 mPa·s, or ≤16,000 mPa·s. Pa·s, or ≤14,000 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.

[0039] In one embodiment or a combination of two or more embodiments described herein, the composition has an average peel strength at 5 gsm ≥ 1.50 N / 25 mm, or ≥ 1.60 N / 25 mm, or ≥ 1.80 N / 25 mm, or ≥ 2.00 N / 25 mm, or ≥ 2.20 N / 25 mm, or ≥ 2.40 N / 25 mm, or ≥ 2.50 N / 25 mm. In one embodiment or a combination of two or more embodiments described herein, the composition has an average peel strength at 5 gsm ≤ 8.0 N / 25 mm, or ≤ 7.0 N / 25 mm, or ≤ 6.0 N / 25 mm, or ≤ 5.0 N / 25 mm.

[0040] In one embodiment or a combination of two or more embodiments described herein, the composition is an adhesive, and more particularly a hot melt adhesive or a pressure-sensitive adhesive, and more particularly a hot melt adhesive.

[0041] The present invention also provides an article comprising at least one component formed of a composition of any one or a combination of two or more embodiments described herein. In any one or a combination of two or more embodiments described herein, the article is a hygiene article, and further comprises a diaper, incontinence pad, or medical clothing.

[0042] Ethylene / alpha-olefin interpolymers

[0043] Ethylene / α-olefin interpolymers include ethylene and α-olefins in polymeric form. α-olefins include, but are not limited to, C3-C20 α-olefins, other C3-C10 α-olefins, and other C3-C8 α-olefins, such as propylene, 1-butene, 1-hexene, and 1-octene.

[0044] Such interpolymers also include ethylene / α-olefin / non-conjugated polyene interpolymers, which comprise ethylene, α-olefins, and non-conjugated polyenes in polymerized form. α-olefins include, but are not limited to, C3-C20 α-olefins, additional C3-C10 α-olefins, and additional C3-C8 α-olefins. In one embodiment, the interpolymer is an ethylene / propylene / non-conjugated polyene interpolymer, further a terpolymer, and further EPDM. Suitable examples of non-conjugated polyenes include C4-C40 non-conjugated dienes. 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 are further selected from ENB, VNB, dicyclopentadiene, or 1,4-hexadiene, and are further selected from ENB or VNB, and are further ENB.

[0045] Partially hydrogenated rosin ester tackifiers

[0046] Tackifiers are known in the art and can be solid, semi-solid, or liquid at room temperature. The term "hydrogenated rosin ester tackifier" and similar terms refer to rosin resins that have been esterified and fully hydrogenated (e.g., rosin gum, rosin wood, tall oil rosin, etc., and combinations thereof). The term "partially hydrogenated rosin ester tackifier" and similar terms refer to rosin resins that have been esterified and partially hydrogenated (e.g., rosin gum, rosin wood, tall oil rosin, etc., and combinations thereof). Typically, rosin is esterified and then hydrogenated.

[0047] Hydrogenation is a reducing reaction that results in the addition of hydrogen to molecules, polymers, etc., and generally refers to the addition of hydrogen atoms to alkene and / or alkyne groups present in the molecules, polymers, etc. Hydrogenation is typically carried out under catalytic conditions, such as in the presence of nickel, palladium, or platinum, for example. Hydrogenation can result in complete or total hydrogenation, in which all unsaturated bonds (e.g., in alkenes and / or alkynes) are saturated upon hydrogen addition; or it can result in partial hydrogenation, in which some of the unsaturated bonds are retained after hydrogenation.

[0048] "Rosin ester" refers to an ester typically prepared via a reaction between rosin acid and an alcohol. The resulting rosin ester is hydrogenated to form a hydrogenated or partially hydrogenated rosin ester tackifier. It should be understood that, as an ester, a rosin ester contains at least one ester group having an oxygen atom. Rosin esters do not include tackifiers consisting only of hydrogen and carbon atoms. "Polyol" is an alcohol containing at least two hydroxyl groups (-OH). Polyols include, but are not limited to, glycerol, pentaerythritol, or triethylene glycol.

[0049] "Rosin acid" is a mixture of resin acids, which are carboxylic acids. As shown above, non-limiting examples of suitable rosins include resin rosin, wood rosin, tall oil rosin, and combinations thereof. Non-limiting examples of suitable resin acids include abietic acid, neoabietic acid, dehydroabietic acid, longleaf abietic acid, L-piperidine, piratic acid, isopiratic acid, and combinations thereof. Some of these acids exist in two or more isomers.

[0050] Suitable partially hydrogenated rosin ester tackifiers include, but are not limited to, STAYBELITE ESTER 5-E RESIN (Synthomer). Regarding 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 those carbon atoms in the final rosin ester (i.e., polymerized, esterified, and hydrogenated polymeric structures) that are saturated and bonded to hydrogen or another carbon via single bonds. Aliphatic carbon excludes carbons bonded to heteroatoms (e.g., oxygen). The term "ester group carbon" refers to the carbon atom of the ester group. An "ester group" is a part having the following structure (I):

[0051] Structure (I). “Ester carbon” is the carbon in the ester group of structure (I), in which the carbon atom is bonded to one oxygen atom by a double bond and to a second oxygen atom by a single bond.

[0052] Oils and other additives

[0053] Non-limiting examples of oils include olefin oligomers, low molecular weight polyolefins (such as liquid polybutene), phthalates, mineral oils (such as naphthenic oils, paraffinic oils, and hydrotreated 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, hydrotreated oils, or petroleum-derived oils. In one embodiment or a combination of two or more embodiments described herein, the oil is selected from hydrotreated paraffinic process oils.

[0054] The compositions of the present invention may contain one or more additives. In one embodiment, the composition contains at least one antioxidant. The antioxidant prevents the composition from being degraded by reactions with oxygen initiated by substances such as heat, light, or residual catalysts present in commercial materials. Suitable antioxidants include, for example, those commercially available from BASF, such as IRGANOX 1010, IRGANOX B225, IRGANOX 1076, and IRGANOX 1726. These antioxidants, which act as free radical scavengers, can be used alone or in combination with other antioxidants such as phosphite antioxidants (e.g., IRGAFOS 168, also available from BASF). In one embodiment, the composition contains 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 At least one antioxidant in the amount of 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. Weight percentages are based on the total weight of the composition.

[0055] Definitions

[0056] Unless stated to the contrary, implied by the context or customary in the art, all parts and percentages are by weight, and all test methods are current methods as of the date of this disclosure.

[0057] As used herein, the term "composition" includes a mixture of materials comprising the composition as well as reaction and decomposition products formed from the composition materials. Any reaction or decomposition products are typically present in trace or residual amounts.

[0058] As used herein, the term "polymer" refers to a polymer compound prepared by polymerizing monomers of the same or different types. Therefore, the general term polymer includes the terms homopolymer (used to refer to polymers prepared from only one type of monomer; it should be understood that trace impurities may be incorporated into the polymer structure) and interpolymer, as defined below. Trace impurities (such as catalyst residues) may be incorporated into and / or within the polymer. Typically, polymers are stabilized with very low amounts ("ppm") of one or more stabilizers, such as one or more antioxidants.

[0059] As used herein, the term "interpolymer" refers to a polymer obtained by polymerizing at least two different types of monomers. The term interpolymer therefore includes the term copolymer (used to refer to polymers prepared from two different types of monomers) and polymers prepared from more than two different types of monomers.

[0060] As used herein, the term "olefin-based polymer" refers to a polymer that contains 50% by weight or most of a weight of an olefin (such as ethylene or propylene) in polymeric form (based on the weight of the polymer) and optionally may contain one or more comonomers.

[0061] As used herein, the term "propylene-based polymer" refers to a polymer that contains a majority weight percentage of propylene (based on the weight of the polymer) in polymeric form and may optionally contain one or more comonomers.

[0062] As used herein, the term "ethylene-based polymer" means a polymer that contains 50% by weight or most of the weight of ethylene (based on the weight of the polymer) in polymeric form and optionally may contain one or more comonomers.

[0063] As used herein, the term "ethylene / α-olefin interpolymer" refers to a random interpolymer containing 50% by weight or most of the weight of ethylene (based on the weight of the interpolymer) and α-olefin in polymeric form.

[0064] As used herein, the term "ethylene / α-olefin copolymer" refers to a random copolymer comprising 50% by weight or the majority of ethylene monomer (based on the weight of the copolymer) and α-olefin as the only two monomer types.

[0065] As used in this article with respect to polymers (or interpolymers or terpolymers or copolymers), the phrase "major weight percentage" refers to the amount of monomer present in the polymer in the largest quantity.

[0066] The terms “comprising,” “including,” “having,” and their derivatives are not intended to exclude the presence of any additional components, steps, or procedures, whether or not specifically disclosed. For the avoidance of any doubt, unless otherwise stated, all compositions claimed using the term “comprising” may include any additional additives, auxiliaries, or compounds, whether in polymeric or other forms. In contrast, the term “consistently comprising” excludes any other components, steps, or procedures from any subsequently listed scope, except those that are not essential for operability. The term “consisting of” excludes any components, steps, or procedures not specifically described or listed.

[0067] List of some composition characteristics

[0068] A] A composition comprising at least the following components:

[0069] a) An ethylene / α-olefin interpolymer, wherein the ethylene / α-olefin interpolymer has the following properties:

[0070] i) Melt index (I2) ≤ 10 dg / min.

[0071] ii) Density ranging from 0.855 g / cc to 0.895 g / cc;

[0072] b) Partially hydrogenated rosin ester tackifier.

[0073] B] According to the composition described in A] above, the melt index (I2) of the ethylene / α-olefin interpolymer (component a) is ≥0.2 dg / min, or ≥0.4 dg / min, or ≥0.6 dg / min, or ≥0.8 dg / min, or ≥0.9 dg / min, or ≥1.0 dg / min.

[0074] C] According to the composition described in A] or B] above, the melt index (I2) of the ethylene / α-olefin interpolymer (component a) is ≤9.0 dg / min, or ≤8.0 dg / min, or ≤7.0 dg / min, or ≤6.0 dg / min, or ≤5.0 dg / min, or ≤4.0 dg / min, or ≤3.0 dg / min, or ≤2.0 dg / min.

[0075] D] The composition according to any one of A]-C] (A] to C] above, wherein the density of the ethylene / α-olefin interpolymer (component a) 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 ).

[0076] E] The composition according to any one of A]-D] above, wherein the density of the ethylene / α-olefin interpolymer (component a) is ≤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.

[0077] F] The composition according to any one of A]-E] above, wherein the peak melting temperature (Tm) of the ethylene / α-olefin interpolymer (component a) is ≥40.0°C, or ≥45.0°C, or ≥50.0°C, or ≥52.0°C, or ≥54.0°C, or ≥56.0°C, or ≥58.0°C as determined by DSC.

[0078] G] The composition according to any one of A]-F] above, wherein, as determined by DSC, the peak melting temperature of the ethylene / α-olefin interpolymer (component a) is ≤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.

[0079] H] The composition according to any one of A]-G] above, wherein the glass transition temperature (Tg) of the ethylene / α-olefin interpolymer (component a) is ≥-70.0℃, or ≥-65.0℃, or ≥-60.0℃, or ≥-55.0℃ as determined by DSC.

[0080] I] The composition according to any one of A]-H] above, wherein the glass transition temperature (Tg) of the ethylene / α-olefin interpolymer (component a) is ≤-30.0℃, or ≤-35.0℃, or ≤-40.0℃, or ≤-45.0℃, or ≤-50.0℃ as determined by DSC.

[0081] J] The composition according to any one of A]-I] above, wherein the crystallization temperature (Tc) of the ethylene / α-olefin interpolymer (component a) is ≥20.0℃, or ≥25.0℃, or ≥30.0℃, or ≥35.0℃, or ≥40.0℃, or ≥42.0℃ as determined by DSC.

[0082] K] The composition according to any one of A]-J] above, wherein the crystallization temperature (Tc) of the ethylene / α-olefin interpolymer (component a) is ≤60.0°C, or ≤55.0°C, or ≤50.0°C, or ≤48.0°C, or ≤46.0°C as determined by DSC.

[0083] L] The composition according to any one of A]-K] above, wherein the Mooney viscosity (ML 1+4, 121°C) of the ethylene / α-olefin interpolymer (component a) is ≥2.0, or ≥4.0, or ≥5.0, or ≥6.0, or ≥7.0, or ≥7.5, or ≥8.0.

[0084] M] The composition according to any one of A]-L] above, wherein the Mooney viscosity (ML 1+4, 121°C) of the ethylene / α-olefin interpolymer (component a) is ≤40, or ≤35, or ≤30, or ≤25.

[0085] N] The composition according to any one of A]-M] above, wherein the α-olefin of the ethylene / α-olefin interpolymer (component a) is a C3-C20 α-olefin, and further a C3-C10 α-olefin, and further a C3-C8 α-olefin.

[0086] O] The composition according to any one of A]-N] above, wherein the α-olefin of the ethylene / α-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.

[0087] P] The composition according to any one of A]-O] above, wherein the ethylene / α-olefin interpolymer (component a) is an ethylene / α-olefin copolymer.

[0088] Q] The composition according to any one of A]-P] above, wherein the ethylene / α-olefin interpolymer (component a) is selected from the following: ethylene / propylene copolymer, ethylene / butene copolymer, or ethylene / octene copolymer, and further selected from ethylene / butene copolymer, or ethylene / octene copolymer, and further selected from ethylene / octene copolymer.

[0089] R] The composition according to any one of A]-Q] above, wherein the partially hydrogenated rosin ester tackifier (component b) is partially derived from an alcohol selected from glycerol, pentaerythritol or triethylene glycol, and further selected from glycerol or pentaerythritol, and further selected from glycerol.

[0090] S] The composition according to any one of A]-R] above, wherein component b contains ≥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-based carbon based on the total moles of carbon in the rosin ester and as determined by 13C NMR.

[0091] T] The composition according to any one of A]-S] above, wherein component 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% of ester-based carbon based on the total molar number of carbons in the rosin ester and as determined by 13C NMR.

[0092] U] The composition according to any one of A]-T] above, wherein component b contains ≥60.0 mol%, or ≥62.0 mol%, or ≥65.0 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% aliphatic carbon based on the total moles of carbon in the rosin ester and as determined by 13C NMR.

[0093] V] The composition according to any one of A]-U] above, wherein component b contains ≤90.0 mol%, or ≤88.0 mol%, or ≤86.0 mol%, or ≤84.0 mol%, or ≤82.0 mol%, or ≤80.0 mol% aliphatic carbon based on the total moles of carbon in the rosin ester and as determined by 13C NMR.

[0094] W] The composition according to any one of A]-V] above, wherein, as determined by DSC, the initial melting temperature of component b is ≥50°C, or ≥60°C, or ≥70°C, or ≥80°C, or ≥85°C.

[0095] X] The composition according to any one of A]-W] above, wherein, as determined by DSC, the final melting temperature of component b is ≤100°C, or ≤97°C, or ≤95°C, or ≤92°C, or ≤90°C.

[0096] Y] The composition according to any one of A]-X] above, wherein, based on the weight of the composition, the total of component a and component b contained in the composition is ≥50.0 wt%, ≥55.0 wt%, or ≥60.0 wt%, or ≥62.0 wt%, or ≥65.0 wt%, or ≥67.0 wt%, or ≥70.0 wt%, or ≥75.0 wt%.

[0097] Z] The composition according to any one of A]-Y] above, wherein, based on the weight of the composition, the total of component a and component b contained in the composition is ≤100.0% by weight, or ≤95.0% by weight, or ≤85.0% by weight, or ≤80.0% by weight.

[0098] A2] The composition according to any one of A]-Z] above, wherein, based on the weight of the composition, the composition comprises ≥2.0 wt%, or ≥3.0 wt%, or ≥4.0 wt%, or ≥5.0 wt%, or ≥5.5 wt%, or ≥6.0 wt%, or ≥6.5 wt%, or ≥7.0 wt%, or ≥7.5 wt% of component a.

[0099] B2] The composition according to any one of A]-A2] above, wherein, based on the weight of the composition, the composition comprises 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 of component a.

[0100] C2] The composition according to any one of A]-B2] above, wherein, based on the weight of the composition, the composition comprises ≥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.

[0101] D2] The composition according to any one of A]-C2] above, wherein, based on the weight of the composition, the composition comprises ≤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 of component b.

[0102] E2] The composition according to any one of A]-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.

[0103] F2] The composition according to any one of A]-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.

[0104] G2] The composition according to any one of A]-F2] above, wherein the composition further comprises an oil (component c). Furthermore, the oil is selected from mineral oils, hydrogenated oils, hydrotreated oils, or petroleum-derived oils, and is further selected from hydrotreated oils, and further selected from hydrotreated paraffinic process oils.

[0105] [H2] The composition according to G2] above, wherein, based on the weight of the composition, the composition contains ≥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 the oil (component c).

[0106] I2] The composition according to G2] or H2] above, wherein, based on the weight of the composition, the composition contains ≤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 the oil.

[0107] J2] The composition according to any one of G2]-I2] above, wherein 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.

[0108] K2] The composition according to any one of G2]-J2] above, 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.

[0109] L2] The composition according to any one of G2]-K2] above, 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.

[0110] M2] The composition according to any one of G2]-L2] above, 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.

[0111] N2] The composition according to any one of G2]-M2] above, wherein, based on the weight of the composition, the total of components a, b and c contained in the composition is ≥70.0 wt%, ≥75.0 wt%, or ≥80.0 wt%, or ≥82.0 wt%, or ≥84.0 wt%, or ≥86.0 wt%, or ≥87.0 wt%.

[0112] O2] The composition according to any one of G2]-N2] above, wherein, based on the weight of the composition, the total of components a, b and c contained in the composition is ≤100.0% by weight, or ≤99.8% by weight, ≤99.6% by weight, or ≤99.5% by weight.

[0113] P2] The composition according to any one of A]-O2] above, wherein the composition further comprises a second ethylene / α-olefin interpolymer (component d), and wherein the I2 of component d is greater than the I2 of component a.

[0114] Q2] According to the composition described in P2 above, the melt index (I2) of the second ethylene / α-olefin interpolymer (component d) is ≤2000dg / min, or ≤1800dg / min, or ≤1600dg / min, or ≤1400dg / min, or ≤1200dg / min, or ≤1100dg / min, or ≤1000dg / min.

[0115] R2] According to the composition described in P2] or Q2] above, the melt index (I2) of the second ethylene / α-olefin interpolymer (component d) is ≥200 dg / min, or ≥250 dg / min, or ≥300 dg / min, or ≥350 dg / min, or ≥400 dg / min, or ≥420 dg / min, or ≥440 dg / min, or ≥460 dg / min, or ≥480 dg / min, or ≥500 dg / min.

[0116] S2] The composition according to any one of P2]-R2] above, wherein the density of the second ethylene / α-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 ).

[0117] [T2] ​​The composition according to any one of [P2]-S2] above, wherein the density of the second ethylene / α-olefin interpolymer (component d) is ≤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.

[0118] U2] According to any one of P2]-T2] above, the melt viscosity (177°C) of the second ethylene / α-olefin interpolymer (component d) is ≥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.

[0119] V2] In any one of the compositions according to P2]-U2] above, the viscosity (177°C) of the second ethylene / α-olefin interpolymer (component d) is ≤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.

[0120] W2] The composition according to any one of P2]-V2] above, wherein, as determined by DSC, the peak melting point (Tm) of the second ethylene / α-olefin interpolymer (component d) is ≥50.0°C, or ≥55.0°C, or ≥60.0°C, or ≥62.0°C, or ≥64.0°C, or ≥66.0°C, or ≥67.0°C.

[0121] X2] The composition according to any one of P2]-W2] above, wherein, as determined by DSC, the peak melting point (Tm) of the second ethylene / α-olefin interpolymer (component d) is ≤90.0℃, or ≤85.0℃, or ≤80.0℃, or ≤78.0℃, or ≤76.0℃, or ≤74.0℃, or ≤72.0℃, or ≤71.0℃.

[0122] Y2] The composition according to any one of P2]-X2] above, wherein, as determined by DSC, the glass transition temperature (Tg) of the second ethylene / α-olefin interpolymer (component d) is ≤-40.0℃, or ≤45.0℃, or ≤-50.0℃, or ≤-51.0℃, or ≤-52.0℃, or ≤-53.0℃, or ≤-54.0℃.

[0123] Z2] The composition according to any one of P2]-Y2] above, wherein, as determined by DSC, the glass transition temperature (Tg) of the second ethylene / α-olefin interpolymer (component d) is ≥-80.0℃, or ≥75.0℃, or ≥-70.0℃, or ≥-68.0℃, or ≥-66.0℃, or ≥-64.0℃, or ≥-62.0℃, or ≥-61.0℃, or ≥-60.0℃, or ≥-59.0℃.

[0124] A3] The composition according to any one of P2]-Z2] above, wherein the α-olefin of the second ethylene / α-olefin interpolymer (component d) is a C3-C20 α-olefin, and further a C3-C10 α-olefin, and further a C3-C8 α-olefin.

[0125] B3] The composition according to any one of P2]-A3] above, wherein the α-olefin of the second ethylene / α-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.

[0126] C3] The composition according to any one of P2]-B3] above, wherein the second ethylene / α-olefin interpolymer (component d) is an ethylene / α-olefin copolymer.

[0127] D3] The composition according to any one of P2]-C3] above, wherein the second ethylene / α-olefin interpolymer (component d) is selected from the following: ethylene / propylene copolymer, ethylene / butene copolymer, or ethylene / octene copolymer, and further selected from ethylene / butene copolymer, or ethylene / octene copolymer, and further selected from ethylene / octene copolymer.

[0128] E3] The composition according to any one of P2]-D3] above, wherein, based on the weight of the composition, the composition contains ≥5.0 wt%, or ≥6.0 wt%, or ≥7.0 wt%, or ≥8.0 wt%, or ≥9.0 wt%, or ≥10.0 wt% of the second ethylene / α-olefin interpolymer (component d).

[0129] F3] The composition according to any one of P2]-E3] above, wherein, based on the weight of the composition, the composition comprises ≤60.0 wt%, or ≤50.0 wt%, ≤40.0 wt%, or ≤35.0 wt%, or ≤30.0 wt%, or ≤25.0 wt%, or ≤20.0 wt%, or ≤18.0 wt%, or ≤16.0 wt%, or ≤14.0 wt% of the second ethylene / α-olefin interpolymer (component d).

[0130] G3] The composition according to any one of P2]-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.

[0131] H3] The composition according to any one of P2]-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.

[0132] I3] The composition according to any one of P2]-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.

[0133] J3] The composition according to any one of P2]-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.

[0134] K3] The composition according to any one of P2]-J3] above, wherein, based on the weight of the composition, the total of components a, b and d contained in the composition is ≥60.0 wt%, ≥65.0 wt%, or ≥70.0 wt%, or ≥72.0 wt%, or ≥74.0 wt%, or ≥76.0 wt%, or ≥78.0 wt%.

[0135] L3] The composition according to any one of P2]-K3] above, wherein, based on the weight of the composition, the total of components a, b and d contained in the composition is ≤95.0% by weight, or ≤90.0% by weight, or ≤85.0% by weight, or ≤80.0% by weight.

[0136] M3] The composition according to any one of P2]-L3] above, wherein, based on the weight of the composition, the total of components a, b, c and d contained in the composition is ≥80.0 wt%, ≥85.0 wt%, or ≥90.0 wt%, or ≥92.0 wt%, or ≥94.0 wt%, or ≥96.0 wt%, or ≥98.0 wt%.

[0137] [N3] The composition according to any one of [P2]-M3] above, wherein, based on the weight of the composition, the total of components a, b, c and d contained in the composition is ≤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.

[0138] O3] The composition according to any one of A]-N3] above, wherein the composition further comprises a thermoplastic polymer that differs from the ethylene / α-olefin interpolymer (component a) in one or more characteristics such as monomer type, monomer distribution and / or monomer amount, density, melt index (I2), Mn, Mw, Mz, MWD, Mooney viscosity (ML 1+4, 121°C), V0.1, V100, RR or any combination thereof, and further differs from the ethylene / α-olefin interpolymer (component a) in one or more characteristics such as monomer type, monomer distribution and / or monomer amount, density, melt index (I2), Mn, Mw, MWD or any combination thereof. In another embodiment, the thermoplastic polymer is also different from the second ethylene / α-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, and further differs from the second ethylene / α-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, MWD, or any combination thereof.

[0139] [P3] The composition according to any one of A]-O3] above, wherein the melt viscosity (150°C) of the composition is ≥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. s, or ≥4,500 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.

[0140] Q3] The composition according to any one of A]-P3] above, wherein the melt viscosity (150°C) of 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, or ≤18,000 mPa·s, or ≤16 ,000 mPa·s, or ≤14,000 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.

[0141] R3] The composition according to any one of A]-Q3] above, wherein the composition has an average peel force at 2 gsm ≥1.50 N / 25 mm, or ≥1.60 N / 25 mm, or ≥1.70 N / 25 mm, or ≥1.80 N / 25 mm, or ≥1.90 N / 25 mm.

[0142] S3] The composition according to any one of A]-R3] above, wherein the average peel force of the composition at 2gsm is ≤8.0N / 25mm, or ≤7.0N / 25mm, or ≤6.0N / 25mm, or ≤5.0N / 25mm.

[0143] [T3] The composition according to any one of A]-S3] above, wherein the composition has an average peel force at 3 gsm ≥1.50 N / 25 mm, or ≥1.60 N / 25 mm, or ≥1.80 N / 25 mm, or ≥1.90 N / 25 mm, or ≥2.00 N / 25 mm, or ≥2.10 N / 25 mm.

[0144] U3] The composition according to any one of A]-T3] above, wherein the average peel force of the composition at 3gsm is ≤8.0N / 25mm, or ≤7.0N / 25mm, or ≤6.0N / 25mm, or ≤5.0N / 25mm.

[0145] V3] The composition according to any one of A]-U3] above, wherein the composition has an average peel force at 5 gsm ≥1.50 N / 25 mm, or ≥1.60 N / 25 mm, or ≥1.80 N / 25 mm, or ≥2.00 N / 25 mm, or ≥2.20 N / 25 mm, or ≥2.40 N / 25 mm, or ≥2.50 N / 25 mm.

[0146] W3] The composition according to any one of A]-V3] above, wherein the average peel force of the composition at 5 gsm is ≤8.0 N / 25 mm, or ≤7.0 N / 25 mm, or ≤6.0 N / 25 mm, or ≤5.0 N / 25 mm.

[0147] X3] The composition according to any one of A]-W3] above, wherein the molecular weight distribution (MWD) of the ethylene / α-olefin interpolymer (component a) is ≥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.

[0148] Y3] The composition according to any one of P2]-X3] above, wherein the molecular weight distribution (MWD) of the second ethylene / α-olefin interpolymer (component d) is ≥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.

[0149] Z3] The composition according to any one of A]-Y3] above, wherein the composition is an adhesive, and further is a hot melt adhesive or a pressure-sensitive adhesive, and further is a hot melt adhesive.

[0150] A4] An article comprising at least one component formed of a composition according to any one of A]-Z3 above.

[0151] B4] The article according to A4 above, wherein the article is a sanitary article, and further comprises diapers, incontinence pads or medical clothing.

[0152] C4] A method of forming an adhesive, the method comprising mixing a composition according to any one of A]-Y3 above.

[0153] D4] According to the method described in C4 above, the adhesive is a hot melt adhesive or a pressure-sensitive adhesive, and further, it is a hot melt adhesive.

[0154] Test methods

[0155] 13C NMR experimental procedure for rosin esters

[0156] 13C NMR can be used to measure aliphatic carbon content, oxygen-containing compound content, aromatic carbon content, unsaturated carbon content, ester group content, aldehyde group content, and ketone group content.

[0157] Sample Preparation (Rosin Ester) - Each sample was prepared in tetrachloroethane-d2 by adding approximately 2.7 g of tetrachloroethane-d2 containing 0.025 M Cr(AcAc)3 to 0.20 g - 0.30 g of 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 a heating gun. Each sample was visually inspected to ensure homogeneity.

[0158] Data Acquisition Parameters (Rosin Ester) - Data were collected using a Bruker 400MHz spectrometer equipped with a Bruker Dual DUL High-Temperature CryoProbe. Data were acquired using 160 scans per data file, a 6-second pulse repetition delay, a 90-degree flip angle, and inverse gating decoupling at a sample temperature of 120°C. Acquisition was performed using a spectral width of 25,000 Hz and a file size of 32K data points. Table A below lists the integral ranges used for quantifying aliphatic carbon content, oxygen-containing compound content, aromatic carbon content, unsaturated carbon content, ester group content, aldehyde group content, and ketone group content. The molar percentage of each carbon group can be determined by the peak of interest.

[0159] Table A

[0160]

[0161] Viscosity of polymers

[0162] According to ASTM D3236, the melt viscosity of each polymer (8 g to 10 g) was measured using a Brinell viscometer with Thermosel, model LVDV-1 Prime. Viscosity at 177°C was measured using a rotor SC4-31.

[0163] Melt index of polymers

[0164] The melt index MI (or I2) of ethylene-based polymers is measured according to ASTM D-1238 at 190°C / 2.16 kg.

[0165] Density

[0166] The density of the polymer was measured by preparing a polymer sample according to ASTM D 1928 and then measuring the density within one hour of sample pressing according to ASTM D792 Method B.

[0167] Differential scanning calorimetry (DSC)

[0168] Differential scanning calorimetry (DSC) was used to measure the Tm, Tc, Tg, and crystallinity of ethylene-based (PE) polymer samples. Each sample (0.5 g) was compressed and molded into a film at 25000 psi and 190 °C for 10–15 seconds. Approximately 5–8 mg of the film sample was weighed and placed in a DSC pan. The lid was screwed onto the pan to ensure a sealed atmosphere. The sample pan was placed in the DSC chamber, and the sample for PE was heated to 180 °C at a rate of approximately 10 °C / min. The sample was held at this temperature for three minutes. The sample was then cooled to -90 °C (for PE) at a rate of 10 °C / min and held isothermally at this temperature for three minutes. The sample was then heated again at a rate of 10 °C / min until completely melted (second heating). Unless otherwise stated, the melting point (Tm, peak) and glass transition temperature (Tg) of each polymer sample were determined by the second heating profile, and the crystallization temperature (Tc) was determined by the first cooling profile. Record the corresponding peak temperatures of Tg, Tm, and Tc. The percentage of crystallinity can be calculated by dividing the heat of fusion (Hf) determined by the second heating curve by the theoretical heat of fusion of PE, which is 292 J / g, and multiplying this amount by 100 (e.g., Crystallinity % = (Hf / 292 J / g) × 100 (for PE)).

[0169] Gel permeation chromatography

[0170] The chromatographic system consisted of a PolymerChar GPC-IR (Valencia, Spain) high-temperature GPC chromatograph equipped with an internal IR5 infrared detector (IR5). The autosampler oven compartment was set at 160°C and the column compartment at 150°C. The columns were four Agilent "Mixed A" 30cm 20µm linear mixed-bed columns. The chromatographic solvent was 1,2,4-trichlorobenzene containing 200 ppm of butylated hydroxytoluene (BHT). The solvent source was bubbled with nitrogen. The injection volume was 200 μL, and the flow rate was 1.0 mL / min.

[0171] The GPC column assembly was calibrated using 21 polystyrene standards with narrow molecular weight distributions, ranging from 580 to 8,400,000, arranged in a six-cocktail mixture with individual molecular weights spaced at least ten times apart. These standards were purchased from Agilent Technologies. For molecular weights equal to or greater than 1,000,000, 0.025 g of polystyrene standard was prepared in 50 mL of solvent, and for molecular weights less than 1,000,000, 0.05 g of polystyrene standard was prepared in 50 mL of solvent. The polystyrene standards were dissolved by gentle stirring at 80 °C for 30 minutes. The peak molecular weights of the polystyrene standards were converted to polyethylene molecular weights using Equation 1 (as described in Williams and Ward, J. Polym. Sci., Polym. Let., 6, 621 (1968)).

[0172] , where M is the molecular weight, A has a value of 0.4315, and B equals 1.0.

[0173] A fifth-order polynomial was used to fit the calibration point for the corresponding polyethylene equivalent. A small adjustment to A (approximately 0.375 to 0.445) was made to correct for column resolution and band broadening effects, resulting in linear homopolymer polyethylene standards at 120,000 Mw.

[0174] Total plate counts were performed on the GPC column assembly using decane (“prepared as 0.04 g in 50 mL TCB”, dissolved under slow stirring for 20 min). Plate counts and symmetry were measured by injection at 200 μL according to the following equations (Equation 2) and (Equation 3):

[0175] Where RV is the retention volume in milliliters, peak width is in milliliters, peak maximum is the peak maximum height, and ½ height is half the peak maximum height; and

[0176] Where RV is the retention volume in milliliters, and peak width is in milliliters, peak maximum is the position of the maximum peak, one-tenth height is 1 / 10 of the height of the peak maximum, and where "following peak" refers to the tail of the peak at a slightly later retention volume compared to the peak maximum, and where "forward peak" refers to the foreground of the peak at a slightly earlier retention volume compared to the peak maximum. The plate count of the chromatographic system should be greater than 18,000, and the symmetry should be between 0.98 and 1.22.

[0177] Samples were prepared semi-automatically using PolymerChar Instrument Control software, with a target sample weight set at 2 mg / ml. Solvent (containing 200 ppm BHT) was added to a pre-bubbled, diaphragm-capped vial via a PolymerChar high-temperature autosampler. The sample was then dissolved at 160°C for two hours under low-speed oscillation.

[0178] Based on the GPC results, using the internal IR5 detector (measurement channel) of the PolymerChar GPC-IR chromatograph, according to equations 4-6, the PolymerChar GPCOne was used. ™ The software performs baseline subtraction on the IR chromatograms at each equidistant data collection point (i) and analyzes the polyethylene equivalent molecular weight (Mn) obtained from the calibration curve of the narrow standard at point (i) according to Equation 1. (GPC) Mw (GPC) and Mz (GPC) The calculation is as follows: Equation 4-6 is as follows:

[0179] (Equation 4) (Equation 5) and (Equation 6).

[0180] To monitor deviations over time, a flow rate marker (decane) was introduced into each sample via a micropump controlled by a PolymerChar GPC-IR system. This flow rate marker (FM) was used to linearly correct the pump flow rate (nominal flow rate) for each sample by comparing the RV (RV(FM sample)) of the corresponding decane peak within the sample with the RV (RV(FM calibrated)) of the alkyl peak within the narrow standard calibration. It was then assumed that any variation in the decane marker peak time was linearly related to the flow rate (effective flow rate) over the entire run. To facilitate the highest accuracy in RV measurement of the flow marker peak, a least-squares fitting procedure was used to fit the peak values ​​of the flow marker concentration chromatogram to a quadratic equation. The first derivative of the quadratic equation was then used to solve for the true peak position. After calibrating the system based on the flow marker peak, the effective flow rate (relative to the narrow standard calibration) was calculated using Equation 7: The processing of the flow marker peaks was performed via PolymerChar GPCOne. ™ The software is complete. An acceptable flow rate correction should ensure that the effective flow rate is within + / - 0.7% of the nominal flow rate.

[0181] Experiments

[0182] Commercial reagents are listed in Table 1.

[0183] Table 1 : Commercial reagents

[0184]

[0185] *Note that the equation "MI = [3.6126(10 (log(ƞ)-6.6928) / -1.1363) - 9.3185], where the melt viscosity at ƞ (cP or mPa·s) = 350℉ (177℃) can be used to calculate the melt index (2.16 kg, 190℃) for AFFINITY grades 1900, 1950, and 1000R. MI = I2

[0186] **Staybelite Ester 5E contains 79.7 mol% aliphatic carbon and 5.1 mol% ester carbon. Each mol% is based on the total number of moles of carbon in the rosin ester and was determined by 13C NMR.

[0187] ***Residhere ES 100 S contains 69.1 mol% aliphatic carbon and 4.9 mol% ester carbon. Each mol% is based on the total number of moles of carbon in the rosin ester and was determined by 13C NMR.

[0188] Preparation of formulated compositions (hot melt adhesives)

[0189] Each formulation was prepared using a laboratory-type adhesive mixer (Model Z blade mixer LUK), which consists of a mixing blade powered by a motor, an oil heating unit, a temperature and rpm control unit, and a mixing chamber with a volume of approximately 0.25 L. Each composition was prepared by first weighing appropriate amounts of each component to obtain a sample in a “200 g batch.” The components were added to the preheated (at 180°C) mixing chamber until melted, and in the following order: first, one or more polymers; second, oil; and third, tackifier plus IRGANOX 1010. These components were gently mixed at 180°C and 5 rpm to limit thermal or shear degradation. Then, two mixing stages were performed: mixing at 20 rpm for three minutes, followed by mixing at 66 rpm for ten minutes. The regulator was set to 180°C throughout all mixing steps. The consistency of each composition was visually inspected, and when fully 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.

[0190] Table 2A: Composition (wt%)

[0191]

[0192] *REGALITE R1090 from Eastman.

[0193] Table 2B: Composition (wt%)

[0194]

[0195] *REGALITE R1090 from Eastman.

[0196] Table 2C: Composition (wt%)

[0197]

[0198] *REGALITE R1090 from Synthomer.

[0199] Melt viscosity of formulated compositions

[0200] According to ASTM D-3236, the melt viscosity of each of the above-described formulations was measured at 150°C using a Brookfield RV-DV-II-Pro viscometer and a SC4-27 rotor. The heating apparatus was set to this temperature (150°C), and the rotor was placed in the heating apparatus and equilibrated at this temperature. Next, the composition (9.5 g) was weighed in a sample chamber that could be handled in a suitable manner and introduced into the heating apparatus over a five-minute period and / or before melting. The rotor was then placed inside the melt for approximately ten minutes. Once the composition and Brookfield component reached the desired temperature (150°C), the rotor speed was set to 20-50 rpm to produce a torque value in the range of 70% to 90%. Viscosity values ​​were read at three-minute intervals to monitor viscosity behavior during the experiment. The melt viscosity value (viscosity equilibrium) was reported after 30 minutes. The results are shown in Tables 3A, 3B, and 3C.

[0201] Preparation of laminates for peel test study

[0202] Each layer was prepared using a Nordson / JHT laboratory coating machine with a Nordson True-Coat Slot Die. Hydrophobic polypropylene (PP) nonwoven fabric (12 gsm) from Fitesa and a breathable backing sheet (16 gsm) from a Clopay MicroPro FPSK-16M were used. The formulated composition (adhesive) was applied to the nonwoven fabric. The melting tank, transfer hose, and melt coater were all set at 150°C. The composition was added at weights of 5 gsm, 3 gsm, and 2 gsm (g / m²). The linear speed was set to 50 m / min, and the pump was set to 25 RPM, 15 RPM, and 10 RPM, with coating weights of 5 gsm, 3 gsm, and 2 gsm, respectively.

[0203] For each composition, a bonded sheet of “200mm (l) × 150mm (w)” is produced. Within each sheet, a bonded area of ​​“150mm × 150mm” is produced. Each bonded sheet is cut along its length (l) to produce five test samples, each with a size of “200mm (l) × '25±0.5mm' (w)” and a bonded area of ​​“150mm × '25±0.5mm'”. The bonded area extends across the entire width of each test sample and extends 150mm along the length of the test sample from one end. This leaves the remaining length (50mm) of the test sample unbonded, or retains a nonbonded area of ​​“50mm × '25±0.5mm'”. The unbonded nonwoven sheet and backing plate are each clamped in a corresponding pneumatic fixture for the T-peel test described below.

[0204] T-peel test study

[0205] Each test was performed on a Zwick Z010 universal testing machine. Test samples were cut from the laminate produced by the coating production line, as discussed above. Each laminate sample (25 ± 0.5 mm wide) was secured in 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 pull rate of 300 mm / min according to ISO 11339. Data was automatically recorded. At least five laminate test samples were measured for each formulation, and the average peel force was reported. The results are shown in Tables 3A, 3B, and 3C.

[0206] As seen in Tables 3A, 3B, and 3C, the compositions of the present invention exhibit excellent peel strength values ​​and contain bio-based tackifiers. The compositions of the present invention are well-suited for use in hygiene products such as diapers, pads, or medical garments. Comparative compositions E, F, and J show poor peel performance; for example, less than "1.40 N / 25 mm" at a 3 gsm coating weight. Comparative example B is visually incompatible and brittle, and unsuitable for coating or further testing. Comparative compositions A, C, D, G, H, and I each contain undesirable synthetic tackifiers, as does composition E. These comparative compositions are not preferred because the amount of carbon dioxide released into the atmosphere during the synthesis of the tackifier is increased.

[0207] Table 3A: Viscosity and adhesion results

[0208]

[0209] *In-comp. = Incompatible (phase separation) and cannot be processed.

[0210] Table 3B: Viscosity and adhesion results

[0211]

[0212] Table 3C: Viscosity and adhesion

[0213]

Claims

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

2. The composition of claim 1, wherein the composition comprises a total of 50.0 wt% to 100.0 wt% of component a and component b, based on the weight of the composition.

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

4. The composition of any one of claims 1 to 3, wherein component b is derived in part from an alcohol selected from the group consisting of glycerol, pentaerythritol, or triethylene glycol.

5. The composition of any one of claims 1 to 4, wherein component b comprises 3.0 mol% to 20.0 mol% of ester group carbons, based on the total moles of carbons in the rosin ester and as determined by13C NMR.

6. The composition of any one of claims 1 to 5, wherein component b comprises 60.0 mol% to 90.0 mol% of aliphatic carbons, based on the total moles of carbons in the rosin ester and as determined by13C NMR.

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

8. The composition of any one of claims 1 to 7, wherein the composition comprises 10.0 wt% to 70.0 wt% of component b, based on the weight of the composition.

9. The composition of 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 of any one of claims 1 to 9, wherein the composition further comprises an oil (component c).

11. The composition of 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 of any one of claims 1 to 11, wherein the composition further comprises a second ethylene / alpha-olefin interpolymer (component d), and wherein component d has an I2 that is > the I2 of component a.

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

14. The composition of 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 of 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 from 1.00 to 7.

00.

17. The composition according to any one of claims 1 to 16, wherein the melt viscosity (150°C) of the composition is from 1,000 mPa-s to 30,000 mPa-s.

18. The composition according to any one of claims 1 to 17, wherein the average peel force of the composition at 5 gsm is from 1.50 N / 25 mm to 8.00 N / 25 mm.

19. The composition according to any one of claims 1 to 18, wherein the composition is an adhesive.

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

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