JP2011511853A - 粘着剤組成物、これを含む保護フィルム及び偏光板並びに液晶表示装置 - Google Patents
粘着剤組成物、これを含む保護フィルム及び偏光板並びに液晶表示装置 Download PDFInfo
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- JP2011511853A JP2011511853A JP2010542181A JP2010542181A JP2011511853A JP 2011511853 A JP2011511853 A JP 2011511853A JP 2010542181 A JP2010542181 A JP 2010542181A JP 2010542181 A JP2010542181 A JP 2010542181A JP 2011511853 A JP2011511853 A JP 2011511853A
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- Prior art keywords
- meth
- acrylate
- adhesive composition
- sensitive adhesive
- pressure
- Prior art date
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- Granted
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- 239000000203 mixture Substances 0.000 title claims abstract description 53
- 230000001681 protective effect Effects 0.000 title claims abstract description 24
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 18
- 239000000853 adhesive Substances 0.000 title claims description 19
- 230000001070 adhesive effect Effects 0.000 title claims description 19
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 57
- 239000000178 monomer Substances 0.000 claims abstract description 56
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- 229920006243 acrylic copolymer Polymers 0.000 claims abstract description 34
- 150000003839 salts Chemical class 0.000 claims abstract description 29
- 125000000524 functional group Chemical group 0.000 claims abstract description 19
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 42
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 29
- -1 n-octyl Chemical group 0.000 claims description 27
- 125000000217 alkyl group Chemical group 0.000 claims description 21
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical group CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 17
- 125000004432 carbon atom Chemical group C* 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 15
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 14
- 239000012790 adhesive layer Substances 0.000 claims description 12
- 239000003431 cross linking reagent Substances 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 8
- 210000002858 crystal cell Anatomy 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 4
- 239000013522 chelant Substances 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 125000002947 alkylene group Chemical group 0.000 claims description 3
- 150000001450 anions Chemical class 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 150000001768 cations Chemical class 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical group C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 229910020366 ClO 4 Inorganic materials 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052792 caesium Inorganic materials 0.000 claims description 2
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 125000003438 dodecyl group Chemical group [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])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 claims description 2
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 2
- 125000002889 tridecyl 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])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 11
- 239000000654 additive Substances 0.000 abstract description 7
- 230000005012 migration Effects 0.000 abstract description 3
- 238000013508 migration Methods 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 59
- 238000000034 method Methods 0.000 description 17
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 230000003068 static effect Effects 0.000 description 11
- 230000005611 electricity Effects 0.000 description 9
- 239000010410 layer Substances 0.000 description 9
- 229920001577 copolymer Polymers 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 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 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 4
- 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 4
- 239000006087 Silane Coupling Agent Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 125000003545 alkoxy group Chemical group 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 4
- 229920002284 Cellulose triacetate Polymers 0.000 description 3
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 3
- 239000002738 chelating agent Substances 0.000 description 3
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 3
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- AVTLBBWTUPQRAY-UHFFFAOYSA-N 2-(2-cyanobutan-2-yldiazenyl)-2-methylbutanenitrile Chemical compound CCC(C)(C#N)N=NC(C)(CC)C#N AVTLBBWTUPQRAY-UHFFFAOYSA-N 0.000 description 2
- 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 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 235000010724 Wisteria floribunda Nutrition 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- FFBZKUHRIXKOSY-UHFFFAOYSA-N aziridine-1-carboxamide Chemical compound NC(=O)N1CC1 FFBZKUHRIXKOSY-UHFFFAOYSA-N 0.000 description 2
- 125000004106 butoxy group Chemical group [*]OC([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 2
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- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- ZXHZWRZAWJVPIC-UHFFFAOYSA-N 1,2-diisocyanatonaphthalene Chemical compound C1=CC=CC2=C(N=C=O)C(N=C=O)=CC=C21 ZXHZWRZAWJVPIC-UHFFFAOYSA-N 0.000 description 1
- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 description 1
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- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- JYSWMLAADBQAQX-UHFFFAOYSA-N 2-prop-2-enoyloxyacetic acid Chemical compound OC(=O)COC(=O)C=C JYSWMLAADBQAQX-UHFFFAOYSA-N 0.000 description 1
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- CUTWSDAQYCQTGD-UHFFFAOYSA-N 2-prop-2-enoyloxypropanoic acid Chemical compound OC(=O)C(C)OC(=O)C=C CUTWSDAQYCQTGD-UHFFFAOYSA-N 0.000 description 1
- MECNWXGGNCJFQJ-UHFFFAOYSA-N 3-piperidin-1-ylpropane-1,2-diol Chemical compound OCC(O)CN1CCCCC1 MECNWXGGNCJFQJ-UHFFFAOYSA-N 0.000 description 1
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- URDOJQUSEUXVRP-UHFFFAOYSA-N 3-triethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CCO[Si](OCC)(OCC)CCCOC(=O)C(C)=C URDOJQUSEUXVRP-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
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- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
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- NVGBPTNZLWRQSY-UWVGGRQHSA-N Lys-Lys Chemical class NCCCC[C@H](N)C(=O)N[C@H](C(O)=O)CCCCN NVGBPTNZLWRQSY-UWVGGRQHSA-N 0.000 description 1
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- FYAMXEPQQLNQDM-UHFFFAOYSA-N Tris(1-aziridinyl)phosphine oxide Chemical compound C1CN1P(N1CC1)(=O)N1CC1 FYAMXEPQQLNQDM-UHFFFAOYSA-N 0.000 description 1
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- KYIKRXIYLAGAKQ-UHFFFAOYSA-N abcn Chemical compound C1CCCCC1(C#N)N=NC1(C#N)CCCCC1 KYIKRXIYLAGAKQ-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
(a)金属塩をキレート化することができる官能基を有する単量体と、疎水性単量体とを含有するアクリル系共重合体、および
(b)金属塩を含む。
基材と、
上記基材の一面または両面に形成され、本発明による粘着剤組成物の硬化物を含有する粘着層とを含む。
偏光フィルムまたは偏光素子と、
上記偏光フィルムまたは偏光素子の一面または両面に形成され、本発明による粘着剤組成物の硬化物を含有する粘着層とを含む。
(a)アクリル系共重合体
本発明に使用するアクリル系共重合体は、この技術分野において通常粘着剤として使用されるものであれば特に限定されず、例えば、
(i)アルキレンオキシド基を有する(メタ)アクリル酸エステル系単量体0.8乃至5重量部と、
(ii)疎水性単量体3乃至18重量部と
を含むものを使用することができる。
(iv)架橋性官能基含有単量体0.1重量部乃至10重量部と、をさらに含むことができる。
本発明において使用される金属塩には、アクリル系共重合体に含まれる単量体によってキレート化され得る金属陽イオン及び/または陰イオンが含まれる。上記金属塩は、溶媒またはキレート化可能な官能基を含む共重合体と混合すると、金属イオンが塩化ら解離されやすい化合物であることが好ましく、また、上記金属イオンは、イオン半径が小さく、解離エネルギーが小さいことが好ましい。
上記のような成分よりなる本発明のアクリル系粘着剤組成物は、必要に応じて多官能性架橋剤をさらに含むことができる。多官能性架橋剤は、アクリル系共重合体に含まれる架橋性官能基と反応することによって、粘着剤の凝集力を高める作用をする。
上記のような成分よりなる本発明の粘着剤組成物は、必要に応じてシラン系カップリング剤および/または粘着性付与樹脂をさらに含むことができる。
ゲル含量(%)=B/A×100
偏光フィルムまたは偏光素子と、
上記偏光フィルムまたは偏光素子の一面または両面に形成され、本発明による粘着剤組成物の硬化物を含有する粘着層と、を含む偏光板を提供する。
窒素ガスを流し、温度調節が容易になるように冷却装置を設置した1Lの反応器に2−エチルヘキシルアクリレート(EHA)90重量部、ラウリルアクリレート5重量部、メトキシトリエチレングリコールアクリレート2重量部及び2−ヒドロキシエチルアクリレート(HEA)3重量部を含む単量体混合物及び溶剤として酢酸エチル(EAc)100重量部を投入した。次に、酸素除去のために、窒素ガスを60分間パージ(purging)した後、温度を70℃に維持した。その後、混合物を均一にした後、反応開始剤として2、2’−アゾビス(2−メチルブチロニトリル)(Wako、V−59)0.1重量部を投入し、6時間反応させた。反応の後、得られた生成物を酢酸エチルで希釈することによって、固形分含量が44%であり、重量平均分子量が58万であり、分子量分布が7.0のアクリル系共重合体を製造した。
共重合体の成分及び組成を下記表1に示したように変更したことを除いて、上記製造例1と同じ方法でアクリル系共重合体を製造した。
製造例1で製造したアクリル系共重合体100重量部に対して、架橋剤としてヘキサメチレンジイソシアネートのプレポリマー(HDI)5.0重量部及び金属塩としてリチウムトリフルオロメタンスルホンイミド(LiN(CF3SO2)2)0.1重量部を投入し、適正の濃度に希釈して均一に混合した後、厚さ38μmの2軸延伸ポリエチレンテレフタレートフィルムの一面にコーティングし、乾燥させて、厚さ20μmの均一な粘着層を製造した。次に、こうして得られたポリエチレンテレフタレートフィルムの一面にコーティングした粘着層に、離型フィルムをラミネートし、十分な熟成のために23℃の温度および55%の湿度の条件で4日間保管した。その後、上記のように製造された保護フィルムを適当なサイズに切断し、偏光板のトリアセチルセルロース(TACフィルム、日本国富士フィルム社)面及び眩しさ防止フィルム(AG TAC、日本国DNP社)面に各々付着し、評価に使用した。
粘着剤組成物の組成を下記表2に示したように変更したことを除いて、実施例1と同じ方法でサンプルを製造した。
実施例1乃至5及び比較例1及び2で製造した粘着層をトリアセチルセルロース(TAC、富士フィルム社製造)面及び眩しさ防止層(AG、日本国DNP社製造)面にJIS Z 0.27に基づいて2kgのローラーで付着させた後、23℃の温度および65%の相対湿度の条件で24時間保管した。次に、180゜の剥離角度、0.3m/min(低速)及び30m/min(高速)の剥離速度で剥離力を測定した。
実施例1乃至5及び比較例1及び2で製造した保護フィルムを付着させた偏光板を各々25cm×22cm(横×縦)のサイズに切断して試料を準備し、これを23℃の温度および50%の相対湿度の条件で24時間保管した。その後、保護フィルムを40m/minの速度で剥離する際に、偏光板の表面から1cmの高さで静電圧測定器STATRION−M2を使用して、偏光板表面で発生する静電圧を測定した。
保護フィルムを付着させた偏光板を、50℃のオーブン内で10日間保管した後、23℃の温度および65%の相対湿度の条件で24時間保管した。次に、上記と同一の条件で低速、高速剥離力及び剥離帯電圧を測定し、耐久性評価を実施した。
Claims (18)
- (a)金属塩をキレート化することができる官能基を有する単量体と、疎水性単量体とを含有するアクリル系共重合体;および
(b)金属塩
を含む粘着剤組成物。 - 前記金属塩をキレート化することができる官能基を有する単量体が、アルキレンオキシド基を有する(メタ)アクリル酸エステル系単量体である、請求項1に記載の粘着剤組成物。
- 前記金属塩をキレート化することができる官能基を有する単量体が、アルコキシジアルキレングリコール(メタ)アクリル酸エステル、アルコキシトリアルキレングリコール(メタ)アクリル酸エステル、アルコキシポリアルキレングリコール(メタ)アクリル酸エステル、フェノキシジアルキレングリコール(メタ)アクリル酸エステル、フェノキシトリアルキレングリコール(メタ)アクリル酸エステル、及びフェノキシポリアルキレングリコール(メタ)アクリル酸エステルからなる群から選択される1つ以上である、請求項1に記載の粘着剤組成物。
- 前記金属塩をキレート化することができる官能基を有する単量体が、アクリル系共重合体100重量部に対して0.8重量部乃至5重量部の量で含まれる、請求項1に記載の粘着剤組成物。
- 前記疎水性単量体が、炭素数10以上のアルキル基を有する(メタ)アクリル酸エステル系単量体である、請求項1に記載の粘着剤組成物。
- 前記疎水性単量体が、イソボルニル(メタ)アクリレート、ラウリル(メタ)アクリレート、及びトリデシル(メタ)アクリレートからなる群から選択される1つ以上である、請求項1に記載の粘着剤組成物。
- 前記疎水性単量体が、アクリル系共重合体100重量部に対して1重量部乃至18重量部の量で含まれる、請求項1に記載の粘着剤組成物。
- 前記アクリル系共重合体が、アクリル系共重合体100重量部に対して、
炭素数1乃至9のアルキル基を有するアルキル(メタ)アクリレート80重量部乃至95重量部と、
架橋性官能基含有単量体0.1重量部乃至10重量部と
をさらに含む、請求項1に記載の粘着剤組成物。 - 前記炭素数1乃至9のアルキル基を有するアルキル(メタ)アクリレートが、メチル(メタ)アクリレート、エチル(メタ)アクリレート、n−プロピル(メタ)アクリレート、イソプロピル(メタ)アクリレート、n−ブチル(メタ)アクリレート、t−ブチル(メタ)アクリレート、sec−ブチル(メタ)アクリレート、ペンチル(メタ)アクリレート、n−オクチル(メタ)アクリレート、及び2−エチルヘキシル(メタ)アクリレートからなる群から選択される1つ以上である、請求項9に記載の粘着剤組成物。
- 前記架橋性官能基含有単量体が、ヒドロキシル基含有単量体、カルボキシル基含有単量体、または窒素含有単量体である、請求項9に記載の粘着剤組成物。
- 前記金属塩が、
リチウム、ナトリウム、カリウム、マグネシウム、カルシウム、バリウム、及びセシウムからなる群から選択される1つ以上の金属の陽イオンと、
Cl−、Br−、I−、BF4 −、PF6 −、AsF−、ClO4 −、NO2 −、CO3 −、N(CF3SO2)2 −、N(CF3CO)2 −、N(C2F5SO2)2 −、N(C2F5CO)2 −、N(C4F9SO2)2 −、C(CF3SO2)3 −、及びCF3SO3 −からなる群から選択される1つ以上の陰イオンと
を含む請求項1に記載の粘着剤組成物。 - 前記金属塩が、アクリル系共重合体100重量部に対して0.001重量部乃至10重量部の量で含まれる、請求項1に記載の粘着剤組成物。
- 前記アクリル系共重合体100重量部に対して、0.1重量部乃至10重量部の多官能性架橋剤がさらに含まれる、請求項1に記載の粘着剤組成物。
- 前記多官能性架橋剤が、イソシアネート系化合物、エポキシ系化合物、アジリジン系化合物、及び金属キレート系化合物からなる群から選択される1つ以上である請求項14に記載の粘着剤組成物。
- 基材と、
上記基材の一面または両面に形成され、請求項1乃至15のいずれかに記載の粘着剤組成物の硬化物を含有する粘着層と
を含む保護フィルム。 - 偏光フィルムまたは偏光素子と、
上記偏光フィルムまたは偏光素子の一面または両面に形成され、請求項1乃至15のいずれかに記載の粘着剤組成物の硬化物を含有する粘着層と
を含む偏光板。 - 請求項16に記載の保護フィルムを付着させた偏光板が液晶セルの一面または両面に接合された液晶パネルを含む、液晶表示装置。
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JP7131723B1 (ja) | 2022-01-26 | 2022-09-06 | 東洋インキScホールディングス株式会社 | 粘着剤組成物及び粘着シート |
JP2023108729A (ja) * | 2022-01-26 | 2023-08-07 | 東洋インキScホールディングス株式会社 | 粘着剤組成物及び粘着シート |
Also Published As
Publication number | Publication date |
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TWI379875B (en) | 2012-12-21 |
TW200948917A (en) | 2009-12-01 |
US20110187970A1 (en) | 2011-08-04 |
US10100234B2 (en) | 2018-10-16 |
JP5534457B2 (ja) | 2014-07-02 |
EP2231807A4 (en) | 2011-12-14 |
EP2231807B1 (en) | 2015-02-18 |
KR20090078204A (ko) | 2009-07-17 |
WO2009091171A2 (en) | 2009-07-23 |
EP2231807A2 (en) | 2010-09-29 |
CN101910346A (zh) | 2010-12-08 |
CN101910346B (zh) | 2013-10-02 |
WO2009091171A3 (en) | 2009-10-01 |
KR101082450B1 (ko) | 2011-11-11 |
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