JP2021095448A - アルカリ分散型ホットメルト粘着剤 - Google Patents
アルカリ分散型ホットメルト粘着剤 Download PDFInfo
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- JP2021095448A JP2021095448A JP2019225596A JP2019225596A JP2021095448A JP 2021095448 A JP2021095448 A JP 2021095448A JP 2019225596 A JP2019225596 A JP 2019225596A JP 2019225596 A JP2019225596 A JP 2019225596A JP 2021095448 A JP2021095448 A JP 2021095448A
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- JP
- Japan
- Prior art keywords
- melt adhesive
- mass
- trade name
- styrene
- hot melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004831 Hot glue Substances 0.000 title claims abstract description 134
- 239000006185 dispersion Substances 0.000 title claims abstract description 10
- 239000003513 alkali Substances 0.000 title abstract description 28
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 128
- 229920005989 resin Polymers 0.000 claims abstract description 51
- 239000011347 resin Substances 0.000 claims abstract description 51
- 229920001400 block copolymer Polymers 0.000 claims abstract description 50
- -1 diene compound Chemical class 0.000 claims abstract description 39
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 29
- 239000000194 fatty acid Substances 0.000 claims abstract description 29
- 229930195729 fatty acid Natural products 0.000 claims abstract description 29
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 25
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 22
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 22
- 229920001577 copolymer Polymers 0.000 claims abstract description 11
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 9
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 9
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 abstract description 18
- 230000001070 adhesive effect Effects 0.000 abstract description 18
- 229920006132 styrene block copolymer Polymers 0.000 abstract description 3
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- 238000002844 melting Methods 0.000 description 37
- 230000008018 melting Effects 0.000 description 37
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- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 16
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 16
- 239000000126 substance Substances 0.000 description 16
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- 239000002253 acid Substances 0.000 description 15
- 238000012360 testing method Methods 0.000 description 15
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- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 14
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- 125000004432 carbon atom Chemical group C* 0.000 description 8
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- 239000003381 stabilizer Substances 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 7
- 239000000654 additive Substances 0.000 description 7
- 238000005984 hydrogenation reaction Methods 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 7
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 6
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- 229910052782 aluminium Inorganic materials 0.000 description 5
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- 150000001875 compounds Chemical class 0.000 description 5
- JSKZWIGBDHYSGI-UCSXVCBISA-L disodium;(6r,7r)-7-[[(2e)-2-(2-amino-1,3-thiazol-4-yl)-2-[1-[2-(3,4-dihydroxybenzoyl)hydrazinyl]-2-methyl-1-oxopropan-2-yl]oxyiminoacetyl]amino]-3-[(2-carboxylato-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2. Chemical compound [Na+].[Na+].N([C@H]1[C@@H]2N(C1=O)C(=C(CS2)CSC1=CC(=NC2=NC(=NN21)C([O-])=O)C)C([O-])=O)C(=O)C(\C=1N=C(N)SC=1)=N\OC(C)(C)C(=O)NNC(=O)C1=CC=C(O)C(O)=C1 JSKZWIGBDHYSGI-UCSXVCBISA-L 0.000 description 5
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- 229920002633 Kraton (polymer) Polymers 0.000 description 4
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- 230000000996 additive effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000008173 hydrogenated soybean oil Substances 0.000 description 4
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- 238000012545 processing Methods 0.000 description 4
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- 229940114072 12-hydroxystearic acid Drugs 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000013032 Hydrocarbon resin Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 125000002723 alicyclic group Chemical group 0.000 description 3
- 229940053200 antiepileptics fatty acid derivative Drugs 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 3
- 239000003240 coconut oil Substances 0.000 description 3
- 235000019864 coconut oil Nutrition 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
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- 235000012045 salad Nutrition 0.000 description 3
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 3
- HBKBEZURJSNABK-MWJPAGEPSA-N 2,3-dihydroxypropyl (1r,4ar,4br,10ar)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylate Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(=O)OCC(O)CO HBKBEZURJSNABK-MWJPAGEPSA-N 0.000 description 2
- SDJHPPZKZZWAKF-UHFFFAOYSA-N 2,3-dimethylbuta-1,3-diene Chemical compound CC(=C)C(C)=C SDJHPPZKZZWAKF-UHFFFAOYSA-N 0.000 description 2
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- 240000002791 Brassica napus Species 0.000 description 2
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- 239000004698 Polyethylene Substances 0.000 description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 2
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- MBMBGCFOFBJSGT-KUBAVDMBSA-N all-cis-docosa-4,7,10,13,16,19-hexaenoic acid Chemical compound CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCC(O)=O MBMBGCFOFBJSGT-KUBAVDMBSA-N 0.000 description 2
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- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
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- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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- 229910052623 talc Inorganic materials 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
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- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/16—Homopolymers or copolymers of alkyl-substituted styrenes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
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- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2203/00—Decoration means, markings, information elements, contents indicators
- B65D2203/02—Labels
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
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- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
(B)粘着付与樹脂、ならびに、
(C)脂肪酸およびその誘導体からなる群から選ばれる少なくとも一種
を含み、
(A)熱可塑性ブロック共重合体が(A1)スチレン含有率40質量%未満のスチレン系ブロック共重合体を含み、
(B)粘着付与樹脂がα−メチルスチレン系樹脂を含む、アルカリ分散型ホットメルト粘着剤。
本発明において「(A)熱可塑性ブロック共重合体」とは、ビニル系芳香族炭化水素と共役ジエン化合物とがブロック共重合した共重合体であって、通常、ビニル系芳香族炭化水素ブロックと共役ジエン化合物ブロックを有する樹脂組成物である。
旭化成ケミカルズ社(株)製のタフプレンT420(商品名)、タフテックP3000(商品名)、タフテックH1053(商品名);
日本ゼオン社製のQuintac3460(商品名)、Quintac3433N(商品名)、Quintac3520(商品名)、Quintac3270(商品名);
クレイトン社製のD1160(商品名)、Kraton G1650(商品名)、Kraton G1652(商品名)、Kraton G1657(商品名)を例示できる。
(式(1)中、Sはスチレンブロック、Eは共役ジエン化合物ブロックである。)
S−E−S (2)
(式(2)中、Sはスチレンブロック、Eは共役ジエン化合物ブロックである。)
旭化成ケミカルズ社製のアサプレンT439(商品名)、タフプレン125(商品名)、タフプレンA(商品名)、タフテックP2000(商品名)、タフテックH1043(商品名)、タフテックH1051(商品名);
JSR社製のTR2000(商品名)、TR2250(商品名);
Enichem社製のSOlT6414(商品名)が挙げられる。これらの市販品は、各々単独で又は組み合わせて使用することができる。
本発明のホットメルト粘着剤は、(B)粘着付与樹脂(成分(B))を含むことにより、容器に対するラベルの保持力を向上することができる。「粘着付与樹脂」は、ホットメルト粘着剤に通常使用されるものであって、本発明が目的とするホットメルト粘着剤を得ることができるものであれば、特に限定されることはない。なお、本明細書において、成分(B)は、上記成分(A)として説明した化合物は含まないものとする。
本発明のホットメルト粘着剤は、(C)脂肪酸およびその誘導体からなる群から選ばれる少なくとも一種(成分(C))を含む。ホットメルト粘着剤が、成分(C)を含むことにより、本発明のホットメルト粘着剤は、アルカリ分散性に優れたものとなる。成分(C)は一種の化合物を単独で含んでもよいし、二種以上を含んでもよい。
昭和産業社製のFSオイル(商品名)、プライムテイスト(商品名);
ボーソー油脂社製の米油(商品名)、こめサラダ油(商品名);
岡村油脂社製の綿実油(商品名);
理研ビタミン社製のリケマール(商品名);
日油社製のノニオン(商品名);等が挙げられる。
(A1)スチレン含有率が40質量%未満のスチレン系ブロック共重合体
(A1−1)スチレン−エチレン/ブチレン−スチレントリブロック共重合体(クレイトン社製のクレイトンG−1652(商品名)、スチレン含有率30質量%、ジブロック含有率0質量%、重量平均分子量72,000)
(A1−2)スチレン−エチレン/ブチレン−スチレントリブロック共重合体(クレイトン社製のクレイトンG−1650(商品名)、スチレン含有率30質量%、ジブロック含有率0質量%、重量平均分子量92,000)
(A1−3)スチレン−エチレン/ブチレン−スチレンブロック共重合体(クレイトン社製のクレイトンG−1726(商品名)、スチレン含有率31質量%、ジブロック含有率73質量%、重量平均分子量43,000)
(A1−4)スチレン−エチレン/ブチレン−スチレンブロック共重合体(クレイトン社製のクレイトンG−1657(商品名)、スチレン含有率15質量%、ジブロック含有率33質量%、重量平均分子量106,000)
(A2−1)スチレン−エチレン/ブチレン−スチレントリブロック共重合体(旭化成ケミカルズ社製のタフテックH1043(商品名)、スチレン含有率68質量%、ジブロック含有率0質量%、重量平均分子量53,000)
(A2−2)スチレン―ブタジエン/ブチレン−スチレントリブロック共重合体(旭化成ケミカルズ社製のタフテックP2000(商品名)、スチレン含有率68質量%、ジブロック含有率0質量%、重量平均分子量54,000)
(A2−3)スチレン−ブタジエン−スチレントリブロック共重合体(JSR社製のTR2250(商品名)、スチレン含有率52質量%、ジブロック含有率0質量%、重量平均分子量109,000)
(A2−4)スチレン−ブタジエン−スチレントリブロック共重合体(旭化成ケミカルズ社製のタフプレンA(商品名)、スチレン含有率41質量%、ジブロック含有率0質量%、重量平均分子量105,000)
(A2−5)スチレン−ブタジエン−スチレンブロック共重合体(旭化成ケミカルズ社製のアサプレンT−439(商品名)、スチレン含有率46質量%、ジブロック含有率69質量%、重量平均分子量63,000)
(A2−6)スチレン−イソプレン−スチレントリブロック共重合体(クレイトン社製のクレイトンD−1162(商品名)、スチレン含有率41質量%、ジブロック含有率0質量%、重量平均分子量82,000)
(B1)水添脂環族/芳香族共重合系炭化水素樹脂(JXTGエネルギー社製のT−REZ HC103(商品名)、軟化点103℃)
(B2)水添脂環族系炭化水素樹脂(JXTGエネルギー社製のT−REZ HA103(商品名)、軟化点103℃)
(B3)水添脂環族系炭化水素樹脂(JXTGエネルギー社製のT−REZ HA125(商品名)、軟化点125℃)
(B4)水素添加ロジンエステル(GUANGDONG KOMO社製のKOMOTAC KHR75(商品名)、酸価170mgKOH/g 軟化点80℃)
(B5)水素添加ロジンエステル(イーストマンケミカル社製のForalAX−E(商品名)、酸価160mgKOH/g 軟化点80℃)
(B6)ロジンエステル(GUANGDONG KOMO社製のKOMOTAC K107(商品名)、酸価155mgKOH/g 軟化点80℃)
(B7))α−メチルスチレン系樹脂(イーストマンケミカル社製のクリスタレックス3070(商品名)、軟化点70℃)
(B8))α−メチルスチレン系樹脂(イーストマンケミカル社製のクリスタレックス3085(商品名)、軟化点85℃)
(B9)α−メチルスチレン系樹脂(イーストマンケミカル社製のクリスタレックス3100(商品名)、軟化点100℃)
(B10)α−メチルスチレン系樹脂(イーストマンケミカル社製のクリスタレックス5140(商品名)、軟化点140℃)
(B11)水添ロジンエステル(イーストマンケミカル社製のForal 85E(商品名)、酸価9mgKOH/g 軟化点85℃)
(B12)ロジンエステルGUANGDONG KOMO社製のKOMOTAC KB90H(商品名)、酸価15mgKOH/g 軟化点90℃)
(C1)融点40℃以上の脂肪酸誘導体
(C1−1)ヒマシ硬化油(伊藤製油社製のヒマシ硬化油A(商品名)、融点85.5℃)
(C1−2)モノヒドロキシステアリン酸硬化ヒマシ油(横関油脂社製のテクノールMH(商品名)、融点58.0℃)
(C1−3)ラウリン酸水添ヒマシ油(横関油脂社製のテクノールML98(商品名)、融点51.0℃)
(C1−4)ヒマシ硬化脂肪酸(日油社製の12−ヒドロキシステアリン酸(商品名)、融点69.0℃)
(C1−5)牛脂硬化油(日油社製の牛脂51°硬化油HO(商品名)、融点51.0℃)
(C1−6)大豆極度硬化油(山桂産業社製の水添大豆油(商品名)、融点68.2℃)
(C1−7)菜種極度硬化油(山桂産業社製の水添菜種種子油(商品名)、融点68.4℃)
(C1−8)パーム極度硬化油(山桂産業社製の水添パーム油(商品名)、融点58.6℃)
(C1−9)ライスワックス菜種極度硬化油(ボーソー油脂社製のライスワックスSS−1(商品名)、融点79.0℃)
(C2−1)ヒマシ油(豊国製油社製の工業用1号ヒマシ油(商品名)、融点なし(凝固点−22℃)
(C2−2)米油(ボーソー油脂製のこめサラダ油(商品名)、融点なし(凝固点−10〜−5℃))
(C2−3)ひまわり油(山桂産業社製のハイオレイックヒマワリ油(商品名)、融点なし(凝固点−18〜−16℃))
(C2−4)ヤシ油(山桂産業社製のヤシ油(商品名)、融点24.6℃)
(C2−5)ジグリセリン脂肪酸エステル(理研ビタミン社製のリケマール L−71−D(商品名)、融点34℃)
(D1)フィッシャートロプシュワックス(サゾール社製のサゾールC80(商品名)、融点80℃、針入度7)
(D2)フィッシャートロプシュワックス(サゾール社製のサゾールH1(商品名)、融点108℃、針入度2)
(D3)エチレン酢酸ビニル共重合体ワックス(Honeywell社製のAC400(商品名)、融点92℃)
(D4)ポリエチレンワックス(三井化学社製のハイワックス320P(商品名)、融点109℃、針入度7)
(D5)ポリプロピレンワックス三井化学社製のハイワックスNP105(商品名)、融点140/148℃、針入度1)
(D6)パラフィンワックス(日本精蝋社製のHNP−9(商品名)、融点75℃、針入度6)
(E1)パラフィンオイル(出光興産社製のダフニーオイル KP−68(商品名))
(E2)パラフィンオイル(出光興産社製のダイアナプロセスオイル PW90(商品名))
(E3)ポリブテン(日本石油社製の日石ポリブテンHV−300(商品名))
(E4)ナフテンオイル(ペトロチャイナ社製のDN4010(商品名))
(F1)ヒンダードフェノール系酸化防止剤(アデカ社製のアデカスタブ AO−60(商品名))
(F2)チオエーテル系酸化防止剤(アデカ社製のアデカスタブ AO−412S(商品名))
各実施例及び比較例のホットメルト粘着剤をOPPフィルム上に20〜25μmの厚みになるように塗工し、ホットメルト粘着剤付きOPPフィルムのラベル(25mm×50mm)を作製した。このラベルを空のペットボトルに100℃で5秒間押し付けることで貼りあわせ、試験サンプルを作製した。
◎:アルカリ分散率が90%より高い
○:アルカリ分散率が60%以上、90%以下
×:アルカリ分散率が60%未満、または、フィルムが接着せず試験サンプルが作成できないため測定不可
ホットメルト粘着剤をOPPフィルム上に20〜25μmの厚みになるように塗工し、ホットメルト粘着剤付きOPPラベル(25mm×50mm)を作製した。そのラベルを空のペットボトルに100℃で5秒間押し付けることで貼りあわせ、試験サンプルを作製した。
◎:ラベルの浮きなし、ラベルのずれ幅が2mm未満
〇:ラベルの浮きなし、ラベルのずれ幅が2mm以上、4mm未満
△:ラべルの浮きなし、ラベルのずれ幅が4mm以上、7mm未満
×:ラベルの浮きあり、またはラベルのずれ幅が7mm以上
ホットメルト粘着剤をOPPフィルム上に20〜25μmの厚みになるように塗工し、ホットメルト粘着剤付きOPPラベル(25mm×50mm)を作製した。そのラベルを空のペットボトルに100℃で5秒間押し付けることで貼りあわせ、試験サンプルを作製した。試験サンプルを23℃、湿度55%雰囲気下で3日間保管後、ラベルをペットボトルから手で剥離し、ペットボトルへのホットメルト粘着剤の付着状態を目視で確認した。
◎:界面剥離しており、ホットメルト粘着剤の付着なし。
〇:わずかにホットメルト粘着剤の付着あり。
×:凝集破壊、ホットメルト粘着剤の殆どがペットボトルに残っている。
ホットメルトガンの先端から20cm離れた被着体に対し、ホットメルト粘着剤を垂直に間欠塗布した。ホットメルトガンと被着体との間の落下物の状態を目視にて観察し、糸曳き性を評価した。尚、測定条件は以下のとおりである。
ノズル径:14/1000インチ
ノズル:シングルノズル
塗出圧力:0.3MPa
塗出ショット数:90ショット/30秒
〇:落下物がノズルから離れて落下する(糸曳きなし)。
×:落下物がノズル周りに付着する(糸曳きあり)。
Claims (5)
- (A)ビニル系芳香族炭化水素と共役ジエン化合物との共重合体である熱可塑性ブロック共重合体、
(B)粘着付与樹脂、ならびに、
(C)脂肪酸およびその誘導体からなる群から選ばれる少なくとも一種
を含み、
(A)熱可塑性ブロック共重合体が(A1)スチレン含有率40質量%未満のスチレン系ブロック共重合体を含み、
(B)粘着付与樹脂がα−メチルスチレン系樹脂を含む、アルカリ分散型ホットメルト粘着剤。 - 成分(A)〜(C)の総質量100質量部に対し、α−メチルスチレン系樹脂が1〜20質量部含まれる、請求項1に記載のアルカリ分散型ホットメルト粘着剤。
- さらに、フィッシャートロプシュワックスを含む、請求項1または2に記載のアルカリ分散型ホットメルト粘着剤。
- 請求項1〜3のいずれかに記載のアルカリ分散型ホットメルト粘着剤が塗布されたラベル。
- 請求項4に記載のラベルが貼り付けられた容器。
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JP2019225596A JP7438742B2 (ja) | 2019-12-13 | 2019-12-13 | アルカリ分散型ホットメルト粘着剤 |
PCT/JP2020/046222 WO2021117853A1 (en) | 2019-12-13 | 2020-12-11 | Alkali-dispersible hot melt pressure-sensitive adhesive |
KR1020227019379A KR20220113945A (ko) | 2019-12-13 | 2020-12-11 | 알칼리 분산성 핫멜트 감압 접착제 |
EP20899838.5A EP4073192A4 (en) | 2019-12-13 | 2020-12-11 | ALKALINE DISPERSIBLE HOT HOT ADHESIVE |
MX2022006321A MX2022006321A (es) | 2019-12-13 | 2020-12-11 | Adhesivo sensible a la presion de fusion en caliente dispersable en alcali. |
CN202080085949.XA CN114787313B (zh) | 2019-12-13 | 2020-12-11 | 碱分散性热熔压敏粘合剂 |
US17/806,313 US20220372343A1 (en) | 2019-12-13 | 2022-06-10 | Alkali-dispersible hot melt pressure-sensitive adhesive |
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JP7142822B1 (ja) | 2021-11-17 | 2022-09-28 | 東洋インキScホールディングス株式会社 | ホットメルト接着剤 |
JP7393843B1 (ja) | 2022-11-16 | 2023-12-07 | 東洋インキScホールディングス株式会社 | アルカリ剥離性ホットメルト粘着剤、および容器 |
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EP3783078B1 (en) * | 2018-04-18 | 2023-08-09 | Mitsui Chemicals, Inc. | Tackifier and hot melt adhesive composition |
JP7414505B2 (ja) * | 2019-12-13 | 2024-01-16 | ヘンケルジャパン株式会社 | アルカリ分散型ホットメルト粘着剤 |
JP2023077843A (ja) * | 2021-11-25 | 2023-06-06 | ヘンケルジャパン株式会社 | ホットメルト接着剤 |
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EP4073192A1 (en) | 2022-10-19 |
CN114787313B (zh) | 2024-07-09 |
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