JPWO2018043624A1 - 水分散液型アクリル系粘着剤組成物 - Google Patents
水分散液型アクリル系粘着剤組成物 Download PDFInfo
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- JPWO2018043624A1 JPWO2018043624A1 JP2018537380A JP2018537380A JPWO2018043624A1 JP WO2018043624 A1 JPWO2018043624 A1 JP WO2018043624A1 JP 2018537380 A JP2018537380 A JP 2018537380A JP 2018537380 A JP2018537380 A JP 2018537380A JP WO2018043624 A1 JPWO2018043624 A1 JP WO2018043624A1
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- Prior art keywords
- sensitive adhesive
- acrylic
- pressure
- adhesive composition
- acrylic polymer
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 75
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- 239000003522 acrylic cement Substances 0.000 title claims abstract description 9
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 153
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 73
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- 229940048053 acrylate Drugs 0.000 description 55
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- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
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- 125000000217 alkyl group Chemical group 0.000 description 3
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- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000013065 commercial product Substances 0.000 description 3
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
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- LNMQRPPRQDGUDR-UHFFFAOYSA-N hexyl prop-2-enoate Chemical compound CCCCCCOC(=O)C=C LNMQRPPRQDGUDR-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 description 2
- ATVJXMYDOSMEPO-UHFFFAOYSA-N 3-prop-2-enoxyprop-1-ene Chemical group C=CCOCC=C ATVJXMYDOSMEPO-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
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- 239000003513 alkali Substances 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- BTBJBAZGXNKLQC-UHFFFAOYSA-N ammonium lauryl sulfate Chemical compound [NH4+].CCCCCCCCCCCCOS([O-])(=O)=O BTBJBAZGXNKLQC-UHFFFAOYSA-N 0.000 description 1
- 229940063953 ammonium lauryl sulfate Drugs 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- LBSPZZSGTIBOFG-UHFFFAOYSA-N bis[2-(4,5-dihydro-1h-imidazol-2-yl)propan-2-yl]diazene;dihydrochloride Chemical compound Cl.Cl.N=1CCNC=1C(C)(C)N=NC(C)(C)C1=NCCN1 LBSPZZSGTIBOFG-UHFFFAOYSA-N 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical class C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- YHAIUSTWZPMYGG-UHFFFAOYSA-L disodium;2,2-dioctyl-3-sulfobutanedioate Chemical compound [Na+].[Na+].CCCCCCCCC(C([O-])=O)(C(C([O-])=O)S(O)(=O)=O)CCCCCCCC YHAIUSTWZPMYGG-UHFFFAOYSA-L 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-M dodecanoate Chemical compound CCCCCCCCCCCC([O-])=O POULHZVOKOAJMA-UHFFFAOYSA-M 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 230000005183 environmental health Effects 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- DECIPOUIJURFOJ-UHFFFAOYSA-N ethoxyquin Chemical compound N1C(C)(C)C=C(C)C2=CC(OCC)=CC=C21 DECIPOUIJURFOJ-UHFFFAOYSA-N 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229940017705 formaldehyde sulfoxylate Drugs 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- SCFQUKBBGYTJNC-UHFFFAOYSA-N heptyl prop-2-enoate Chemical compound CCCCCCCOC(=O)C=C SCFQUKBBGYTJNC-UHFFFAOYSA-N 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- SBGKURINHGJRFN-UHFFFAOYSA-N hydroxymethanesulfinic acid Chemical compound OCS(O)=O SBGKURINHGJRFN-UHFFFAOYSA-N 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- TYQCGQRIZGCHNB-JLAZNSOCSA-N l-ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(O)=C(O)C1=O TYQCGQRIZGCHNB-JLAZNSOCSA-N 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 229940070765 laurate Drugs 0.000 description 1
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- QYZFTMMPKCOTAN-UHFFFAOYSA-N n-[2-(2-hydroxyethylamino)ethyl]-2-[[1-[2-(2-hydroxyethylamino)ethylamino]-2-methyl-1-oxopropan-2-yl]diazenyl]-2-methylpropanamide Chemical compound OCCNCCNC(=O)C(C)(C)N=NC(C)(C)C(=O)NCCNCCO QYZFTMMPKCOTAN-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- CKQVRZJOMJRTOY-UHFFFAOYSA-N octadecanoic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.CCCCCCCCCCCCCCCCCC(O)=O CKQVRZJOMJRTOY-UHFFFAOYSA-N 0.000 description 1
- 229920002114 octoxynol-9 Polymers 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-M oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC([O-])=O ZQPPMHVWECSIRJ-KTKRTIGZSA-M 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001485 poly(butyl acrylate) polymer Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 1
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- VEYCPJGKKJULEP-UHFFFAOYSA-N prop-2-enoic acid sulfuric acid Chemical compound OC(=O)C=C.OS(O)(=O)=O VEYCPJGKKJULEP-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000012966 redox initiator Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- OGRPJZFGZFQRHZ-UHFFFAOYSA-M sodium;4-octoxy-4-oxo-3-sulfobutanoate Chemical compound [Na+].CCCCCCCCOC(=O)C(S(O)(=O)=O)CC([O-])=O OGRPJZFGZFQRHZ-UHFFFAOYSA-M 0.000 description 1
- 229940035044 sorbitan monolaurate Drugs 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 235000019337 sorbitan trioleate Nutrition 0.000 description 1
- 229960000391 sorbitan trioleate Drugs 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- KRLHYNPADOCLAJ-UHFFFAOYSA-N undecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCOC(=O)C(C)=C KRLHYNPADOCLAJ-UHFFFAOYSA-N 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000007883 water-soluble azo polymerization initiator Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
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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
- C09J133/00—Adhesives based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
-
- 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
- C09J133/00—Adhesives based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/10—Homopolymers or copolymers of methacrylic acid esters
- C09J133/12—Homopolymers or copolymers of methyl methacrylate
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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
- C09J133/00—Adhesives based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
-
- 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
- C09J7/00—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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/12—Esters of monohydric alcohols or phenols
- C08F20/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F20/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2500/00—Characteristics or properties of obtained polyolefins; Use thereof
- C08F2500/24—Polymer with special particle form or size
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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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
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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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
- Laminated Bodies (AREA)
Abstract
Description
前記アクリル系重合体(B)のガラス転移温度が30℃以上であり、且つ、前記アクリル系重合体(A)のガラス転移温度が、前記アクリル系重合体(B)のガラス転移温度よりも低いことを特徴とする水分散液型アクリル系粘着剤組成物。
[2] 前記アクリル系重合体(A)のガラス転移温度が0℃未満であることを特徴とする上記[1]に記載の水分散液型アクリル系粘着剤組成物。
[3] 前記アクリル系重合体(B)のガラス転移温度が35℃以上である、上記[1]または[2]に記載の水分散液型アクリル系粘着剤組成物。
[4] 前記アクリル系重合体(A)のガラス転移温度が−55℃以下である、上記[1]〜[3]のいずれか1つに記載の水分散液型アクリル系粘着剤組成物。
[5] 前記コアシェル構造アクリル系共重合体粒子におけるアクリル系重合体(A)とアクリル系重合体(B)の含有量比((A)/(B))が50/50〜90/10(重量比)の範囲内である、上記[1]〜[4]のいずれか1つに記載の水分散液型アクリル系粘着剤組成物。
[6] 前記コアシェル構造アクリル系共重合体粒子におけるアクリル系重合体(A)とアクリル系重合体(B)の含有比((A)/(B))が60/40〜80/20(重量比)の範囲内である、上記[1]〜[4]のいずれか1つに記載の水分散液型アクリル系粘着剤組成物。
[7] 前記コアシェル構造アクリル系重合体粒子の個数平均粒子径が100〜400nmであり、且つ、粒子径分布が単峰性である、上記[1]〜[6]のいずれか1つに記載の水分散液型アクリル系粘着剤組成物。
[8] 前記アクリル系重合体(B)がモノマーユニットとしてメタクリル酸メチルを含有する、上記[1]〜[7]のいずれか一つに記載の水分散液型アクリル系粘着剤組成物。
[9] 前記アクリル系重合体(B)がモノマーユニットとしてカルボキシ基含有モノマーを含有する、上記[8]記載の水分散液型アクリル系粘着剤組成物。
[10] 前記アクリル系重合体(A)がモノマーユニットとしてアクリル酸C1−10アルキルエステルを含有する、上記[1]〜[9]のいずれか一つに記載の水分散液型アクリル系粘着剤組成物。
[11] 当該水分散液型アクリル系粘着剤組成物が、反応性界面活性剤を使用した乳化重合によって得られたコアシェル構造アクリル系共重合体粒子が該乳化重合における水系媒体に分散した分散液である、上記[1]〜[10]のいずれか一つに記載の水分散液型アクリル系粘着剤組成物。
[12] 上記[1]〜[11]のいずれか1つに記載の水分散液型アクリル系粘着剤組成物により形成された粘着剤層を有する粘着シート。
なお、本明細書において記号「〜」を用いて規定された数値範囲は「〜」の両端(上限および下限)の数値を含むものとする。例えば「0.01〜5」は0.01以上5以下を表す。また、本明細書中、「(メタ)アクリル」は「アクリル」と「メタクリル」の両方を意味し、「(メタ)アクリレート」は「アクリレート」と「メタクリレート」の両方を意味する。また、「水分散液」とは、分散媒が水系媒体の分散液を意味する。また、「Cx−y」は炭素数の範囲を表し、炭素数がx個以上、y個以下を意味する。また、「(メタ)アクリル酸Cx−yアルキルエステル」は「アルキル基の炭素原子数がx〜yの(メタ)アクリル酸アルキルエステル」を意味する。
本発明の水分散液型アクリル系粘着剤組成物(以下、単に「粘着剤組成物」ということがある。)は、コア層(A)がアクリル系重合体(A)を含み、シェル層(B)がアクリル系重合体(B)を含む、コアシェル構造アクリル系共重合体粒子が水系媒体に分散した水分散液型アクリル系粘着剤組成物であり、アクリル系重合体(B)のガラス転移温度が30℃以上であり、且つ、アクリル系重合体(A)のガラス転移温度が、アクリル系重合体(B)のガラス転移温度よりも低いことが主たる特徴である。
(Tg:重合体のガラス転移温度(K)、Tg1、Tg2、・・・、Tgn:各モノマーのホモポリマーのガラス転移温度(K)、W1、W2、・・・、Wn:各モノマーの重量分率)
本発明は、上記の水分散液型アクリル系粘着剤組成物から形成された粘着剤層を有する粘着シートも提供する。粘着剤層を支持体の片面または両面に有する形態の基材付き粘着シートであってもよく、粘着剤層が剥離ライナーに保持された形態等の基材レスの粘着シートであってもよい。ここでいう粘着シートの概念には、粘着テープ、粘着ラベル、粘着フィルム等と称されるものが包含され得る。なお、上記粘着剤層は典型的には連続的に形成されるが、かかる形態に限定されるものではなく、例えば点状、ストライプ状等の規則的あるいはランダムなパターンに形成された粘着剤層であってもよい。また、本発明により提供される粘着シートは、ロール状であってもよく、枚葉状であってもよい。あるいは、さらに種々の形状に加工された形態の粘着シートであってもよい。
(モノマーエマルション(A)の調製)
容器に、原料として、2−エチルヘキシルアクリレート(2EHA)100重量部、アニオン系反応性界面活性剤であるアクアロンHS−1025(第一工業製薬(株)製)1.5重量部(固形分)、イオン交換水82重量部を入れ、ホモミキサー(特殊機化工業(株)製)を用いて、窒素雰囲気下で5分間、6000rpmで撹拌し、モノマーエマルション(A)を調製した。
容器に、原料として、メタクリル酸メチル(MMA)90重量部、アクリル酸(AA)5重量部、メタクリル酸(MAA)5重量部、アニオン系反応性界面活性剤であるアクアロンHS−1025(第一工業製薬(株)製)1.5重量部(固形分)、イオン交換水82重量部を入れ、ホモミキサー(特殊機化工業(株)製)を用いて、窒素雰囲気下で5分間、6000rpmで撹拌し、モノマーエマルション(B)を調製した。
冷却管、窒素導入管、温度計、滴下設備、及び撹拌羽根を備えた反応容器に、アニオン系反応性界面活性剤であるアクアロンHS−1025(第一工業製薬(株)製)0.5重量部(固形分)、イオン交換水76.8重量部を入れ、撹拌しながら十分に窒素置換した後、反応液を60℃まで昇温した。60℃で一定になったことを確認した後、水溶性アゾ重合開始剤であるVA−057(和光純薬工業(株)製、化合物名:2,2’−アゾビス[N−(2−カルボキシエチル)−2−メチルプロピオンアミジン]ハイドレート)0.05重量部を添加し、10分後にモノマーエマルション(A)150.6重量部を2時間半かけて滴下し、コア層(A)となる共重合体を得た。次いで、VA−057を0.05重量部更に添加し、10分後、モノマーエマルション(B)37.6重量部を45分かけて滴下し、シェル層(B)となる共重合体を形成して、コアシェル構造アクリル系共重合体粒子を製造した。得られたコアシェル構造共重合体粒子の個数平均粒子径は160nmであった。
上記で得られた、コアシェル構造アクリル系共重合体粒子が乳化重合後の水系媒体に分散した分散液100重量部に対し、濃度10%のアンモニア水を0.18重量部添加してpH7.5にし、固形分濃度38%のコアシェル構造共重合体粒子を含有する水分散液型粘着剤組成物を得た。
上記水分散液型アクリル系粘着剤組成物を、乾燥後の厚みが20μmとなるように、PETフィルム(PET基材、商品名:ダイアホイルT−100、三菱樹脂(株)製)上にダイコーターにより塗布した後、100℃で3分間乾燥して粘着剤層を形成した後、離型フィルム(ポリエチレンテレフタレート基材、商品名:ダイアホルムMRF−38、三菱化学ポリエステル(株)製)を被せ、粘着シートを作製した。
モノマーエマルション(A)及びモノマーエマルション(B)におけるモノマーと反応性界面活性剤の配合量を表1に示す量に変更した以外は、実施例1と同様にして、コアシェル構造アクリル系共重合体粒子の製造、水分散液型アクリル系粘着剤組成物の調製、及び粘着シートの製造を行った。なお、実施例5〜7及び比較例2では、水分散液型アクリル系粘着剤組成物の調製時、コアシェル構造アクリル系共重合体粒子が乳化重合後の水系媒体(分散媒)に分散した分散液中のコアシェル構造アクリル系共重合体粒子(固形分)100重量部当たり重合ロジンエステル系粘着付与剤(荒川化学工業(株)製の「スーパーエステルE−865−NT」)を10重量部(固形分)添加した。
コアシェル構造共重合体粒子のコア層(A)、シェル層(B)を構成する共重合体のガラス転移温度は、下記に示す各モノマーのホモポリマーのガラス転移温度Tg(K)を用い、下記FOXの式により算出される理論ガラス転移温度(K)を、摂氏温度(℃)に換算した。
2EHA:2−エチルヘキシルアクリレート=203K
MMA:メタクリル酸メチル=378K
AA:アクリル酸=379K
MAA:メタクリル酸=403K
[式中、Tg:重合体のガラス転移温度(K)、Tg1、Tg2、・・・、Tgn:各モノマーのホモポリマーのガラス転移温度(K)、W1、W2、・・・、Wn:各モノマーの重量分率]
コアシェル構造共重合体粒子の個数平均粒子径は、水分散液型粘着剤組成物を蒸留水により固形分濃度が0.5重量%以下となるように希釈して下記装置にて測定した。また、測定された粒子径分布から山頂の数が1つ(単)か複数(多)かを判断した。
装置:レーザ回折・散乱法粒子径分布測定装置(ベックマンコールター(株)製LS13 320 PIDSモード)
分散質の屈折率:1.48(ポリ(アクリル酸n−ブチル)を使用)
分散媒の屈折率:1.33
各実施例及び比較例で得られた粘着テープを幅20mm、長さ150mmに切断し、剥離力測定用サンプルを作製した。該サンプルから、剥離フィルムを剥がし、23℃の雰囲気下で該サンプルの粘着剤層を各種被着体に2kgローラー1往復で圧着し、室温で30分間養生した後、剥離試験機を用いて23℃下、剥離角度180°、剥離速度300mm/minにてサンプルを剥離する際の剥離力を測定した。
図7はこの摩擦力の測定試験の概念図である。各実施例及び比較例で得られた粘着テープを幅30mm、長さ50mmに切断し、摩擦力測定用サンプル51を作製した。51aはPET基材、51bは粘着剤層である。PP板を幅40mm、長さ80mmに切断し、摩擦力測定用土台52を作製した。この測定用土台52に対し、両面粘着テープ(日東電工(株)製、No.5000NSリョウメンテープ)53を介して測定用サンプル51のPET面(PET基材51aの表面)を貼り付けた後、剥離フィルムを剥がした。次いで、測定用サンプル51の粘着剤層51b上に、導き56を付けた20mm×20mmの被着体54および30gの錘55を載せ、被着体54と錘55を一体で水平方向に300mm/minで引張り、その時にかかる応力を測定した。
10 基材
21、22 粘着剤層
31、32 剥離ライナー
51 摩擦力測定用サンプル
51a PET基材
51b 粘着剤層
52 摩擦力測定用土台
53 両面粘着テープ
54 被着体
55 錘
56 導き
Claims (6)
- コア層(A)がアクリル系重合体(A)を含み、シェル層(B)がアクリル系重合体(B)を含む、コアシェル構造アクリル系共重合体粒子が水系媒体に分散してなる水分散液型アクリル系粘着剤組成物であって、
前記アクリル系重合体(B)のガラス転移温度が30℃以上であり、且つ、前記アクリル系重合体(A)のガラス転移温度が、前記アクリル系重合体(B)のガラス転移温度よりも低いことを特徴とする水分散液型アクリル系粘着剤組成物。 - 前記アクリル系重合体(A)のガラス転移温度が0℃未満であることを特徴とする請求項1に記載の水分散液型アクリル系粘着剤組成物。
- 前記コアシェル構造アクリル系共重合体粒子におけるアクリル系重合体(A)とアクリル系重合体(B)の含有量比((A)/(B))が50/50〜90/10(重量比)の範囲内である、請求項1または2記載の水分散液型アクリル系粘着剤組成物。
- 前記コアシェル構造アクリル系重合体粒子の個数平均粒子径が100〜400nmであり、且つ、粒子径分布が単峰性である、請求項1〜3のいずれか1項に記載の水分散液型アクリル系粘着剤組成物。
- 前記アクリル系重合体(B)がモノマーユニットとしてメタクリル酸メチルを含有する、請求項1〜4のいずれか1項に記載の水分散液型アクリル系粘着剤組成物。
- 請求項1〜5のいずれか1項に記載の水分散液型アクリル系粘着剤組成物により形成された粘着剤層を有する粘着シート。
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JP2021188019A (ja) * | 2020-06-05 | 2021-12-13 | コニカミノルタ株式会社 | 粘着剤、粘着剤組成物及び粘着層付き基材 |
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