JP4481020B2 - Optical member adhesive composition, optical member adhesive layer, optical member adhesive sheet, and optical member - Google Patents
Optical member adhesive composition, optical member adhesive layer, optical member adhesive sheet, and optical member Download PDFInfo
- Publication number
- JP4481020B2 JP4481020B2 JP2004014436A JP2004014436A JP4481020B2 JP 4481020 B2 JP4481020 B2 JP 4481020B2 JP 2004014436 A JP2004014436 A JP 2004014436A JP 2004014436 A JP2004014436 A JP 2004014436A JP 4481020 B2 JP4481020 B2 JP 4481020B2
- Authority
- JP
- Japan
- Prior art keywords
- optical member
- weight
- optical
- meth
- sensitive adhesive
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title claims description 163
- 239000000853 adhesive Substances 0.000 title claims description 57
- 230000001070 adhesive effect Effects 0.000 title claims description 57
- 239000000203 mixture Substances 0.000 title claims description 56
- 239000012790 adhesive layer Substances 0.000 title claims description 17
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 54
- 239000000178 monomer Substances 0.000 claims description 42
- 239000000839 emulsion Substances 0.000 claims description 40
- 229920000058 polyacrylate Polymers 0.000 claims description 31
- 239000003995 emulsifying agent Substances 0.000 claims description 23
- 239000011521 glass Substances 0.000 claims description 18
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 15
- 238000007720 emulsion polymerization reaction Methods 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 13
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 11
- 239000003505 polymerization initiator Substances 0.000 claims description 11
- 125000000524 functional group Chemical group 0.000 claims description 8
- 239000010408 film Substances 0.000 description 45
- -1 isooctyl group Chemical group 0.000 description 28
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 25
- 239000010410 layer Substances 0.000 description 25
- 229920000642 polymer Polymers 0.000 description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 206010040844 Skin exfoliation Diseases 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 239000004973 liquid crystal related substance Substances 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 13
- 238000011282 treatment Methods 0.000 description 12
- 239000003431 cross linking reagent Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 10
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 9
- 229910000077 silane Inorganic materials 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 229920000106 Liquid crystal polymer Polymers 0.000 description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 description 6
- 239000012298 atmosphere Substances 0.000 description 6
- 210000002858 crystal cell Anatomy 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000003999 initiator Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000012788 optical film Substances 0.000 description 5
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical group C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 3
- 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
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000012986 chain transfer agent Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- BVYRHLPUAHNHKR-UHFFFAOYSA-N 3-[[1-amino-2-[[1-amino-1-(2-carboxyethylimino)-2-methylpropan-2-yl]diazenyl]-2-methylpropylidene]amino]propanoic acid;hydrate Chemical compound O.OC(=O)CCNC(=N)C(C)(C)N=NC(C)(C)C(=N)NCCC(O)=O BVYRHLPUAHNHKR-UHFFFAOYSA-N 0.000 description 2
- 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 2
- XDQWJFXZTAWJST-UHFFFAOYSA-N 3-triethoxysilylpropyl prop-2-enoate Chemical compound CCO[Si](OCC)(OCC)CCCOC(=O)C=C XDQWJFXZTAWJST-UHFFFAOYSA-N 0.000 description 2
- KBQVDAIIQCXKPI-UHFFFAOYSA-N 3-trimethoxysilylpropyl prop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C=C KBQVDAIIQCXKPI-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 229920002284 Cellulose triacetate Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical class CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide 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
- 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 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 125000002704 decyl 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])* 0.000 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 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 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 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- 125000002958 pentadecyl 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])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 2
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 2
- XLPJNCYCZORXHG-UHFFFAOYSA-N 1-morpholin-4-ylprop-2-en-1-one Chemical compound C=CC(=O)N1CCOCC1 XLPJNCYCZORXHG-UHFFFAOYSA-N 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N 1-propanol Substances CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- VIUDSFQSAFAVGV-UHFFFAOYSA-N 10-triethoxysilyldecyl 2-methylprop-2-enoate Chemical compound CCO[Si](OCC)(OCC)CCCCCCCCCCOC(=O)C(C)=C VIUDSFQSAFAVGV-UHFFFAOYSA-N 0.000 description 1
- BXBOUPUNKULVKB-UHFFFAOYSA-N 10-trimethoxysilyldecyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCCCCCCCCOC(=O)C(C)=C BXBOUPUNKULVKB-UHFFFAOYSA-N 0.000 description 1
- CCQJKEYNLSZZNO-UHFFFAOYSA-N 10-trimethoxysilyldecyl prop-2-enoate Chemical compound CO[Si](OC)(OC)CCCCCCCCCCOC(=O)C=C CCQJKEYNLSZZNO-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
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- OWHSTLLOZWTNTQ-UHFFFAOYSA-N 2-ethylhexyl 2-sulfanylacetate Chemical compound CCCCC(CC)COC(=O)CS OWHSTLLOZWTNTQ-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- GWZMWHWAWHPNHN-UHFFFAOYSA-N 2-hydroxypropyl prop-2-enoate Chemical group CC(O)COC(=O)C=C GWZMWHWAWHPNHN-UHFFFAOYSA-N 0.000 description 1
- XPVKTZNEWSRWDI-UHFFFAOYSA-N 3-[(1-amino-2-methylpropylidene)amino]propanoic acid;hydrate Chemical compound O.CC(C)C(N)=NCCC(O)=O XPVKTZNEWSRWDI-UHFFFAOYSA-N 0.000 description 1
- DOYKFSOCSXVQAN-UHFFFAOYSA-N 3-[diethoxy(methyl)silyl]propyl 2-methylprop-2-enoate Chemical compound CCO[Si](C)(OCC)CCCOC(=O)C(C)=C DOYKFSOCSXVQAN-UHFFFAOYSA-N 0.000 description 1
- MCDBEBOBROAQSH-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propyl prop-2-enoate Chemical compound CO[Si](C)(OC)CCCOC(=O)C=C MCDBEBOBROAQSH-UHFFFAOYSA-N 0.000 description 1
- ATVJXMYDOSMEPO-UHFFFAOYSA-N 3-prop-2-enoxyprop-1-ene Chemical group C=CCOCC=C ATVJXMYDOSMEPO-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
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 1
- DFGKGUXTPFWHIX-UHFFFAOYSA-N 6-[2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]acetyl]-3H-1,3-benzoxazol-2-one Chemical group C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)C1=CC2=C(NC(O2)=O)C=C1 DFGKGUXTPFWHIX-UHFFFAOYSA-N 0.000 description 1
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- RHKLLOOSQWLQLC-UHFFFAOYSA-N C(C=C)(=O)OC(C)O[Si](OCC)(OCC)CCCCCCCCCC Chemical compound C(C=C)(=O)OC(C)O[Si](OCC)(OCC)CCCCCCCCCC RHKLLOOSQWLQLC-UHFFFAOYSA-N 0.000 description 1
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- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
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- 239000006096 absorbing agent Substances 0.000 description 1
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- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 1
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- 125000003368 amide group Chemical group 0.000 description 1
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- 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
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- 125000004432 carbon atom Chemical group C* 0.000 description 1
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- MQWFLKHKWJMCEN-UHFFFAOYSA-N n'-[3-[dimethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CO[Si](C)(OC)CCCNCCN MQWFLKHKWJMCEN-UHFFFAOYSA-N 0.000 description 1
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- 230000003472 neutralizing effect Effects 0.000 description 1
- 125000001400 nonyl 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])[H] 0.000 description 1
- 125000003518 norbornenyl group Chemical group C12(C=CC(CC1)C2)* 0.000 description 1
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- 125000002347 octyl 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])[H] 0.000 description 1
- ANISOHQJBAQUQP-UHFFFAOYSA-N octyl prop-2-enoate Chemical compound CCCCCCCCOC(=O)C=C ANISOHQJBAQUQP-UHFFFAOYSA-N 0.000 description 1
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- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
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- 229920002223 polystyrene Polymers 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
- 239000001294 propane Substances 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 239000007870 radical polymerization initiator Substances 0.000 description 1
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- 239000000344 soap Substances 0.000 description 1
- 235000010378 sodium ascorbate Nutrition 0.000 description 1
- PPASLZSBLFJQEF-RKJRWTFHSA-M sodium ascorbate Substances [Na+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RKJRWTFHSA-M 0.000 description 1
- 229960005055 sodium ascorbate Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 description 1
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- 125000004079 stearyl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- 229920006027 ternary co-polymer Polymers 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- XZHNPVKXBNDGJD-UHFFFAOYSA-N tetradecyl prop-2-enoate Chemical compound CCCCCCCCCCCCCCOC(=O)C=C XZHNPVKXBNDGJD-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
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- FRGPKMWIYVTFIQ-UHFFFAOYSA-N triethoxy(3-isocyanatopropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCN=C=O FRGPKMWIYVTFIQ-UHFFFAOYSA-N 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- 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
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
Description
本発明は、光学部材用粘着組成物、光学部材用粘着層、光学部材用粘着シートおよび光学部材に関し、詳しくは、偏光板、位相差板、楕円偏光板などの光学部品を貼着するための光学部材用粘着組成物、光学部材用粘着層および光学部材用粘着シート、さらには、その光学部材用粘着層が光学部品に設けられている光学部材に関する。 The present invention relates to a pressure-sensitive adhesive composition for an optical member, a pressure-sensitive adhesive layer for an optical member, a pressure-sensitive adhesive sheet for an optical member, and an optical member, and more specifically, for attaching optical components such as a polarizing plate, a retardation plate, and an elliptically polarizing plate. The present invention relates to a pressure-sensitive adhesive composition for optical members, a pressure-sensitive adhesive layer for optical members, a pressure-sensitive adhesive sheet for optical members, and an optical member in which the pressure-sensitive adhesive layer for optical members is provided in an optical component.
フラットディスプレイパネルなどの液晶表示装置に用いる光学部品、例えば、偏光板や位相差板などは、液晶セルに、粘着剤を用いて貼着されている。このような用途に用いられる粘着剤は、通常、温湿度環境の変化によって伸縮し、それに伴なって、光学部品の液晶セルに対する浮きや剥がれが生じやすくなるため、これに対応できる耐久性が要求される。 Optical components used in a liquid crystal display device such as a flat display panel, such as a polarizing plate and a retardation plate, are attached to a liquid crystal cell using an adhesive. Adhesives used in such applications usually expand and contract due to changes in the temperature and humidity environment, and as a result, the optical components tend to float and peel off from the liquid crystal cell. Is done.
また、貼着時において、ゴミが夾雑したり、位置ずれが生じた場合には、光学部品を液晶セルから剥離して、液晶セルを再利用するが、粘着剤には、この剥離時において、液晶セルのギャップを変化させたり、破断させることなく、容易に剥離できることが要求される。そのため、このような用途に用いられる粘着剤には、接着力を高めて耐久性を向上させながら、しかも、剥離時の再剥離性をも向上させることが要求される。 In addition, when dust is mixed or misalignment occurs at the time of sticking, the optical component is peeled off from the liquid crystal cell and the liquid crystal cell is reused. It is required that the liquid crystal cell can be easily peeled without changing or breaking the gap. Therefore, the pressure-sensitive adhesive used for such applications is required to improve the re-peelability at the time of peeling while increasing the adhesive force and improving the durability.
さらに、光学部品には、温湿度環境の変化によって寸法変化が生じ、それに起因して内部応力が発生するので、粘着剤には、そのような内部応力を均一に緩和して、光学部品に残留応力を残存させないようにし、そのような残留応力に起因する色ムラや白ヌケを防止することも要求される。 Furthermore, dimensional changes occur in optical components due to changes in the temperature and humidity environment, and as a result, internal stresses are generated. Therefore, such internal stresses are uniformly relieved in the adhesive and remain in the optical components. It is also required to prevent stress from remaining and to prevent color unevenness and white spots caused by such residual stress.
従来より、このような用途には、有機溶剤タイプのアクリル系粘着剤が用いられてきている。しかし、このような有機溶剤タイプのアクリル系粘着剤は、塗工時において、有機溶剤が気散するので、環境にとって好ましいものではなく、そのため、近年、水性タイプのアクリル系粘着剤への転換が図られている。 Conventionally, organic solvent type acrylic pressure-sensitive adhesives have been used for such applications. However, such an organic solvent type acrylic pressure-sensitive adhesive is not preferable for the environment because the organic solvent is diffused at the time of coating. Therefore, in recent years, conversion to an aqueous type acrylic pressure-sensitive adhesive has been made. It is illustrated.
例えば、（メタ）アクリル酸アルキルエステルを主成分とする単量体混合物とシラン系単量体をエマルション重合して得られる水分散物からなる水分散型粘着剤を粘着剤層として支持体上の少なくとも片面に設けた粘着シートであって、単量体混合物１００重量部に対してシラン系単量体０．００５〜１重量部を含み、ガラス板被着体に貼着後、７０℃、２０％ＲＨ、７日間保存後の接着力が初期値の１．３倍以上であるガラス板用粘着シートにおいて、支持体として光学フィルムを用いて、液晶パネルのガラス基板貼着用の粘着型光学フィルムを作製することが提案されている（例えば、特許文献１参照。）。 For example, a water-dispersed adhesive comprising an aqueous dispersion obtained by emulsion polymerization of a monomer mixture mainly composed of (meth) acrylic acid alkyl ester and a silane monomer is used as an adhesive layer on the support. A pressure-sensitive adhesive sheet provided on at least one side, containing 0.005 to 1 part by weight of a silane-based monomer with respect to 100 parts by weight of the monomer mixture, and after being attached to a glass plate adherend, 70 ° C., 20 % RH, an adhesive sheet for glass plates whose adhesive strength after storage for 7 days is 1.3 times or more of the initial value, using an optical film as a support, an adhesive optical film for attaching a glass substrate to a liquid crystal panel Producing is proposed (for example, refer to Patent Document 1).
しかし、特許文献１に記載されるガラス板用粘着シートにおいても、このような用途において要求される、耐久性や再剥離性など、上記したすべての物性を十分に満足することは困難である。
However, even the pressure-sensitive adhesive sheet for glass plate described in
本発明の目的は、光学部品の貼着に必要な物性、すなわち、温湿度環境の変化による浮きや剥がれを防止でき、耐熱性や耐湿性などの耐久性に優れ、光学部品の貼着後、長時間経過後や高温高湿雰囲気下で保存しても、容易に剥離することができる光学部材用粘着層、その光学部材用粘着層を備えている光学部材用粘着シート、その光学部材用粘着層を得るための光学部材用粘着組成物、さらには、その光学部材用粘着層が光学部品に設けられている光学部材を提供することにある。 The purpose of the present invention is to prevent the physical properties necessary for sticking of optical parts, i.e., floating and peeling due to changes in temperature and humidity environment, excellent durability such as heat resistance and moisture resistance, after sticking of optical parts, An adhesive layer for an optical member that can be easily peeled after being stored for a long time or under a high-temperature and high-humidity atmosphere, an adhesive sheet for an optical member provided with the adhesive layer for an optical member, and the adhesive for an optical member Another object is to provide an optical member pressure-sensitive adhesive composition for obtaining a layer, and an optical member in which the optical member pressure-sensitive adhesive layer is provided on an optical component.
上記の目的を達成するため、本発明の光学部材用粘着組成物は、（メタ）アクリル酸エステルを８０重量％以上含有するモノマー混合物、ラジカル重合性官能基を含む反応性乳化剤および重合開始剤を含むエマルションを乳化重合させることにより得られるアクリル系ポリマーエマルションと、前記アクリル系ポリマーエマルションの固形分１００重量部に対して、シランカップリング剤０．０１〜１重量部とを含有することを特徴としている。 In order to achieve the above object, the pressure-sensitive adhesive composition for optical members of the present invention comprises a monomer mixture containing 80% by weight or more of a (meth) acrylic acid ester, a reactive emulsifier and a polymerization initiator containing a radical polymerizable functional group. Acrylic polymer emulsion obtained by emulsion polymerization of an emulsion containing the silane coupling agent, 0.01 to 1 part by weight with respect to 100 parts by weight of the solid content of the acrylic polymer emulsion Yes.
また、本発明は、上記した光学部材用粘着組成物からなる光学部材用粘着層を含んでいる。 Moreover, this invention contains the adhesion layer for optical members which consists of an above-described adhesive composition for optical members.
また、本発明は、上記した光学部材用粘着層を備えている光学部材用粘着シートを含んでいる。 Moreover, this invention contains the adhesive sheet for optical members provided with the above-mentioned adhesive layer for optical members.
また、上記した光学部材用粘着シートは、ガラスに貼着し、６０℃にて１７時間経過後の前記ガラスに対する接着力が、１０Ｎ／２５ｍｍ以下であることが好適である。 Moreover, it is suitable for the above-mentioned adhesive sheet for optical members to adhere to glass, and the adhesive force with respect to the said glass after 17-hour progress at 60 degreeC is 10 N / 25mm or less.
また、本発明は、上記した光学部材用粘着層が、光学部品の片面または両面に設けられている光学部材を含んでいる。 Moreover, this invention contains the optical member in which the above-mentioned adhesive layer for optical members was provided in the single side | surface or both surfaces of the optical component.
また、上記した前記光学部品が、偏光板、位相差板、楕円偏光板のいずれかであることが好適である。 Moreover, it is preferable that the optical component described above is any one of a polarizing plate, a retardation plate, and an elliptically polarizing plate.
本発明の光学部材用粘着組成物からなる、本発明の光学部材用粘着層、および、本発明の光学部材用粘着シートは、高温高湿環境下においても、浮きや剥がれを防止することができ、また、光学部品の貼着後、長時間経過後や高温高湿雰囲気下で保存しても、その後、容易に剥離することができる。そのため、本発明の光学部材用粘着層が設けられている光学部品は、例えば、液晶表示装置に用いる光学部材として好適に用いることができる。 The pressure-sensitive adhesive layer for the optical member of the present invention and the pressure-sensitive adhesive sheet for the optical member of the present invention comprising the pressure-sensitive adhesive composition for the optical member of the present invention can prevent floating and peeling even in a high temperature and high humidity environment. In addition, even after the optical component is attached, it can be easily peeled off after a long period of time or stored in a high temperature and high humidity atmosphere. Therefore, the optical component provided with the adhesive layer for an optical member of the present invention can be suitably used as an optical member used for a liquid crystal display device, for example.
本発明の光学部材用粘着組成物は、アクリル系ポリマーエマルションと、シランカップリング剤とを含有している。 The pressure-sensitive adhesive composition for optical members of the present invention contains an acrylic polymer emulsion and a silane coupling agent.
アクリル系ポリマーエマルションは、モノマー混合物と、反応性乳化剤と、重合開始剤とを含むエマルションを、乳化重合させることによって得ることができる。 The acrylic polymer emulsion can be obtained by emulsion polymerization of an emulsion containing a monomer mixture, a reactive emulsifier, and a polymerization initiator.
本発明において、モノマー混合物は、（メタ）アクリル酸エステルを８０重量％以上含有している。 In the present invention, the monomer mixture contains 80% by weight or more of (meth) acrylic acid ester.
（メタ）アクリル酸エステルは、メタクリル酸エステルおよび／またはアクリル酸エステルであって、例えば、下記一般式（１）で表される化合物が挙げられる。 The (meth) acrylic acid ester is a methacrylic acid ester and / or an acrylic acid ester, and examples thereof include a compound represented by the following general formula (1).
ＣＨ２＝ＣＲ１ＣＯＯＲ２ （１）
（式中、Ｒ１は水素またはメチル基を、Ｒ２は炭素数１〜１８の直鎖または分岐のアルキル基を示す。）
Ｒ２としては、例えば、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、イソブチル基、ｓｅｃ−ブチル基、ｔ−ブチル基、ペンチル基、ネオペンチル基、イソアミル基、ヘキシル基、へプチル基、オクチル基、イソオクチル基、２−エチルへキシル基、イソノニル基、デシル基、イソデシル基、ラウリル基、ボルニル基、イソボルニル基、ミリスチル基、ペンタデシル基、ステアリル基などが挙げられる。
CH 2 = CR1COOR2 (1)
(In the formula,
As R2, for example, methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, sec-butyl group, t-butyl group, pentyl group, neopentyl group, isoamyl group, hexyl group, heptyl group, Examples include octyl group, isooctyl group, 2-ethylhexyl group, isononyl group, decyl group, isodecyl group, lauryl group, bornyl group, isobornyl group, myristyl group, pentadecyl group and stearyl group.
より具体的には、例えば、（メタ）アクリル酸メチル、（メタ）アクリル酸エチル、（メタ）アクリル酸プロピル、（メタ）アクリル酸イソプロピル、（メタ）アクリル酸ブチル、（メタ）アクリル酸イソブチル、（メタ）アクリル酸ｓｅｃ−ブチル、（メタ）アクリル酸ｔ−ブチル、（メタ）アクリル酸ペンチル、（メタ）アクリル酸ネオペンチル、（メタ）アクリル酸ヘキシル、（メタ）アクリル酸へプチル、（メタ）アクリル酸オクチル、（メタ）アクリル酸イソオクチル、（メタ）アクリル酸２−エチルへキシル、（メタ）アクリル酸ノニル、（メタ）アクリル酸イソノニル、（メタ）アクリル酸デシル、（メタ）アクリル酸イソデシル、（メタ）アクリル酸ラウリル、（メタ）アクリル酸ボルニル、（メタ）アクリル酸イソボルニル、（メタ）アクリル酸ミリスチル、（メタ）アクリル酸ペンタデシル、（メタ）アクリル酸ステアリルなどが挙げられる。 More specifically, for example, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, isopropyl (meth) acrylate, butyl (meth) acrylate, isobutyl (meth) acrylate, Sec-butyl (meth) acrylate, t-butyl (meth) acrylate, pentyl (meth) acrylate, neopentyl (meth) acrylate, hexyl (meth) acrylate, heptyl (meth) acrylate, (meth) Octyl acrylate, isooctyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, nonyl (meth) acrylate, isononyl (meth) acrylate, decyl (meth) acrylate, isodecyl (meth) acrylate, Lauryl (meth) acrylate, bornyl (meth) acrylate, isoborni (meth) acrylate , (Meth) myristyl acrylate, (meth) acrylate, pentadecyl, and the like (meth) stearyl acrylate.
これら（メタ）アクリル酸エステルは、適宜、単独または併用して用いられる。また、これら（メタ）アクリル酸エステルは、モノマー混合物に対して、８０重量％以上、好ましくは、８５〜９９．５重量％含有する。（メタ）アクリル酸エステルの含有量が、８０重量％未満であると、ガラスに対する接着力が大きくなり過ぎる場合がある。 These (meth) acrylic acid esters are appropriately used alone or in combination. These (meth) acrylic acid esters are contained in an amount of 80% by weight or more, preferably 85 to 99.5% by weight, based on the monomer mixture. If the content of the (meth) acrylic acid ester is less than 80% by weight, the adhesive force to the glass may become too large.
また、モノマー混合物には、（メタ）アクリル酸エステル以外に、（メタ）アクリル酸エステルと共重合可能なモノマーを含有させることができる。 In addition to the (meth) acrylic acid ester, the monomer mixture can contain a monomer copolymerizable with the (meth) acrylic acid ester.
そのような共重合可能なモノマーとして、例えば、官能基を含有する官能基含有モノマー、ケイ素原子を含有するシラン系モノマーなどが挙げられる。 Examples of such a copolymerizable monomer include a functional group-containing monomer containing a functional group, a silane monomer containing a silicon atom, and the like.
官能基含有モノマーとしては、例えば、アクリル酸、メタクリル酸、イタコン酸、マレイン酸、クロトン酸、無水マレイン酸などのカルボキシル基含有モノマーまたはその酸無水物、例えば、（メタ）アクリル酸−２−ヒドロキシエチル、（メタ）アクリル酸−２−ヒドロキシプロピル、（メタ）アクリル酸−２−ヒドロキシブチルなどの水酸基含有モノマー、例えば、（メタ）アクリルアミド、Ｎ，Ｎ−ジメチル（メタ）アクリルアミド、Ｎ−メチロール（メタ）アクリルアミド、Ｎ−メトキシメチル（メタ）アクリルアミド、Ｎ−ブトキシメチル（メタ）アクリルアミドなどのアミド基含有モノマー、例えば、（メタ）アクリル酸ジメチルアミノエチル、（メタ）アクリル酸ｔ−ブチルアミノエチルなどのアミノ基含有モノマー、例えば、（メタ）アクリル酸グリシジルなどのグリシジル基含有モノマー、その他、（メタ）アクリロニトリル、Ｎ−（メタ）アクリロイルモルホリン、Ｎ−ビニル−２−ピロドリンなどが挙げられる。 Examples of the functional group-containing monomer include carboxyl group-containing monomers such as acrylic acid, methacrylic acid, itaconic acid, maleic acid, crotonic acid, and maleic anhydride, or acid anhydrides thereof such as (meth) acrylic acid-2-hydroxy Hydroxyl-containing monomers such as ethyl, (meth) acrylic acid-2-hydroxypropyl, (meth) acrylic acid-2-hydroxybutyl, such as (meth) acrylamide, N, N-dimethyl (meth) acrylamide, N-methylol ( Amide group-containing monomers such as (meth) acrylamide, N-methoxymethyl (meth) acrylamide, N-butoxymethyl (meth) acrylamide, such as dimethylaminoethyl (meth) acrylate, t-butylaminoethyl (meth) acrylate, etc. Amino group-containing monomers such as (Meth) glycidyl group-containing monomers such as glycidyl acrylate, other (meth) acrylonitrile, N- (meth) acryloyl morpholine, N- vinyl-2-Pirodorin the like.
これら官能基含有モノマーは、適宜、単独または併用して用いられる。また、これら官能基含有モノマーは、モノマー混合物に対して、２０重量％未満、好ましくは、０．４７〜１４．９重量％含有する。 These functional group-containing monomers are appropriately used alone or in combination. Further, these functional group-containing monomers are contained in an amount of less than 20% by weight, preferably 0.47 to 14.9% by weight, based on the monomer mixture.
また、シラン系モノマーとしては、例えば、（メタ）アクリル酸エステルに対する共重合性に優れている（メタ）アクリロイルオキシアルキルシラン誘導体などの（メタ）アクリロイル基を有するシラン系モノマーが挙げられる。このようなシラン系モノマーとしては、例えば、３−メタクリロイルオキシプロピルトリメトキシシラン、３−アクリロイルオキシプロピルトリメトキシシラン、３−メタクリロイルオキシプロピルトリエトキシシラン、３−アクリロイルオキシプロピルトリエトキシシラン、３−メタクリロイルオキシプロピルメチルジメトキシシラン、３−アクリロイルオキシプロピルメチルジメトキシシラン、３−メタクリロイルオキシプロピルメチルジエトキシシラン、ビニルトリメトキシシラン、ビニルトリエトキシシラン、４−ビニルブチルトリメトキシシラン、４−ビニルブチルトリエトキシシラン、８−ビニルオクチルトリメトキシシラン、８−ビニルオクチルトリエトキシシラン、１０−メタクリロイルオキシデシルトリメトキシシラン、１０−アクリロイルオキシデシルトリメトキシシラン、１０−メタクリロイルオキシデシルトリエトキシシラン、１０−アクリロイルオキシデシルトリエトキシシランなどが挙げられる。 Examples of the silane monomer include a silane monomer having a (meth) acryloyl group such as a (meth) acryloyloxyalkylsilane derivative having excellent copolymerizability with respect to a (meth) acrylic acid ester. Examples of such silane monomers include 3-methacryloyloxypropyltrimethoxysilane, 3-acryloyloxypropyltrimethoxysilane, 3-methacryloyloxypropyltriethoxysilane, 3-acryloyloxypropyltriethoxysilane, and 3-methacryloyl. Oxypropylmethyldimethoxysilane, 3-acryloyloxypropylmethyldimethoxysilane, 3-methacryloyloxypropylmethyldiethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, 4-vinylbutyltrimethoxysilane, 4-vinylbutyltriethoxysilane 8-vinyloctyltrimethoxysilane, 8-vinyloctyltriethoxysilane, 10-methacryloyloxydecyltrimethoxysilane, 0 acryloyloxydecyl trimethoxysilane, 10-methacryloyloxydecyl triethoxysilane, 10-acrylate etc. acryloyloxy decyl triethoxy silane.
これらシラン系モノマーは、適宜、単独または併用して用いられる。また、これらシラン系モノマーは、モノマー混合物に対して、例えば、０．００５〜１重量％、好ましくは、０．０１〜０．５重量％、さらに好ましくは、０．０３〜０．１重量％含有する。０．００５重量％未満では、ポリマー強度が不足して凝集力が低下する場合がある。また、０．１重量％を超えると、接着できない程度にまで粘着力が低下する場合がある。 These silane monomers are used alone or in combination as appropriate. Moreover, these silane type monomers are 0.005-1 weight% with respect to a monomer mixture, Preferably, it is 0.01-0.5 weight%, More preferably, it is 0.03-0.1 weight%. contains. If it is less than 0.005% by weight, the polymer strength may be insufficient and the cohesive force may be reduced. Moreover, when it exceeds 0.1 weight%, adhesive force may fall to such an extent that it cannot adhere | attach.
そして、本発明では、まず、上記した（メタ）アクリル酸エステルや、（メタ）アクリル酸エステルと共重合可能なモノマーを、モノマー混合物として適宜配合するとともに、これに、反応性乳化剤および水を配合し、乳化して、エマルションを調製し、次いで、このエマルションに、重合開始剤および必要により水を加えて、乳化重合する。 In the present invention, first, the above-mentioned (meth) acrylic acid ester or a monomer copolymerizable with (meth) acrylic acid ester is appropriately blended as a monomer mixture, and a reactive emulsifier and water are blended therein. The emulsion is then emulsified to prepare an emulsion, and then the emulsion is subjected to emulsion polymerization by adding a polymerization initiator and water as necessary.
反応性乳化剤としては、例えば、プロペニル基、アリルエーテル基などのラジカル重合性官能基が導入された乳化剤であって、より具体的には、アクアロンＨＳ−１０、ＨＳ−２０、ＫＨ−１０、ＢＣ−０５、ＢＣ−１０、ＢＣ−２０（第一工業製薬（株）製）、例えば、アデカリアソープＳＥ１０Ｎ（旭電化工業（株）製）などが挙げられる。 As the reactive emulsifier, for example, an emulsifier into which a radical polymerizable functional group such as propenyl group or allyl ether group is introduced, and more specifically, Aqualon HS-10, HS-20, KH-10, BC -05, BC-10, BC-20 (Daiichi Kogyo Seiyaku Co., Ltd.), for example, Adekari Soap SE10N (Asahi Denka Kogyo Co., Ltd.) and the like.
このような反応性乳化剤を用いることにより、耐熱性および耐湿性の向上を図ることができる。 By using such a reactive emulsifier, heat resistance and moisture resistance can be improved.
また、これら反応性乳化剤は、適宜、単独または併用して用いられる。また、これら反応性乳化剤の配合割合は、モノマー混合物１００重量部（後述するアクリル系ポリマーエマルションの固形分１００重量部に相当する。以下同様。）に対して、例えば、０．２〜１０重量部、好ましくは、０．５〜５重量部である。 These reactive emulsifiers are used alone or in combination as appropriate. Further, the mixing ratio of these reactive emulsifiers is, for example, 0.2 to 10 parts by weight with respect to 100 parts by weight of the monomer mixture (corresponding to 100 parts by weight of the solid content of the acrylic polymer emulsion to be described later). The amount is preferably 0.5 to 5 parts by weight.
そして、エマルションは、例えば、上記した（メタ）アクリル酸エステルや、（メタ）アクリル酸エステルと共重合可能なモノマーを、モノマー混合物として水中に添加し、これとともに、反応性乳化剤を水中に添加した後、撹拌混合することにより、調製することができる。 And the emulsion added the above-mentioned (meth) acrylic acid ester and the monomer copolymerizable with (meth) acrylic acid ester in water as a monomer mixture, for example, and the reactive emulsifier was added in water with this. Then, it can prepare by stirring and mixing.
その後、このエマルションに、重合開始剤および必要により水を加えて、乳化重合する。 Thereafter, a polymerization initiator and, if necessary, water are added to this emulsion to carry out emulsion polymerization.
重合開始剤は、乳化重合の重合開始剤として通常使用される公知のラジカル重合開始剤でよく、例えば、２，２’−アゾビスイソブチロニトリル、２，２’−アゾビス（２−メチルプロピオンアミジン）二硫酸塩、２，２’−アゾビス（２−アミジノプロパン）ジヒドロクロライド、２，２’−アゾビス［２−（５−メチル−２−イミダゾリン−２−イル）プロパン］ジヒドロクロライド、２，２’−アゾビス（Ｎ，Ｎ’−ジメチレンイソブチルアミジン）、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］ハイドレートなどのアゾ系開始剤、例えば、過硫酸カリウム、過硫酸アンモニウムなどの過硫酸塩系開始剤、例えば、ベンゾイルパーオキサイド、ｔ−ブチルハイドロパーオキサイド、過酸化水素などの過酸化物系開始剤、例えば、フェニル置換エタンなどの置換エタン系開始剤、例えば、芳香族カルボニル化合物などのカルボニル系開始剤、例えば、過硫酸塩と亜硫酸水素ナトリウムとの組み合わせ、過酸化物とアスコルビン酸ナトリウムとの組み合わせなどのレドックス系開始剤などが挙げられる。 The polymerization initiator may be a known radical polymerization initiator usually used as a polymerization initiator for emulsion polymerization. For example, 2,2′-azobisisobutyronitrile, 2,2′-azobis (2-methylpropion) Amidine) disulfate, 2,2′-azobis (2-amidinopropane) dihydrochloride, 2,2′-azobis [2- (5-methyl-2-imidazolin-2-yl) propane] dihydrochloride, 2, Azo initiators such as 2'-azobis (N, N'-dimethyleneisobutylamidine), 2,2'-azobis [N- (2-carboxyethyl) -2-methylpropionamidine] hydrate, Persulfate-based initiators such as potassium sulfate and ammonium persulfate, such as benzoyl peroxide, t-butyl hydroperoxide, water peroxide Peroxide initiators such as, for example, substituted ethane initiators such as phenyl substituted ethane, carbonyl initiators such as aromatic carbonyl compounds, for example, combinations of persulfate and sodium bisulfite, peroxidation Redox initiators such as a combination of a product and sodium ascorbate.
これら重合開始剤は、適宜、単独または併用して用いられる。また、これら重合開始剤の配合割合は、モノマー混合物１００重量部に対して、例えば、０．００５〜１重量部程度である。 These polymerization initiators are suitably used alone or in combination. Moreover, the mixture ratio of these polymerization initiators is about 0.005-1 weight part with respect to 100 weight part of monomer mixtures.
なお、水は、エマルションの調製時にのみ配合してもよく、あるいは、その後に、さらに配合してもよく、後述する重合方法に応じて適宜選択することができる。 In addition, water may be blended only at the time of preparing the emulsion, or may be further blended thereafter, and can be appropriately selected according to the polymerization method described later.
また、水の配合割合は、特に制限されないが、乳化重合後のアクリル系ポリマーの固形分濃度が、例えば、３０〜７５重量％、好ましくは、３５〜７０重量％となるように調整する。 The mixing ratio of water is not particularly limited, but is adjusted so that the solid content concentration of the acrylic polymer after emulsion polymerization is, for example, 30 to 75% by weight, preferably 35 to 70% by weight.
また、このようなエマルションには、必要に応じて、連鎖移動剤や架橋剤などの添加剤を適宜配合することができる。 Moreover, additives, such as a chain transfer agent and a crosslinking agent, can be appropriately blended with such an emulsion as necessary.
連鎖移動剤としては、特に制限されないが、例えば、１−ドデカンチオール、メルカプト酢酸、２−メルカプトエタノール、チオグリコール酸２−エチルへキシル、２，３−ジメチルカプト−１−プロパノ−ルなどのメルカプタン類などが挙げられる。 The chain transfer agent is not particularly limited. For example, mercaptans such as 1-dodecanethiol, mercaptoacetic acid, 2-mercaptoethanol, 2-ethylhexyl thioglycolate, and 2,3-dimethylcapto-1-propanol And the like.
これら連鎖移動剤は、適宜、単独または併用して用いられる。また、連鎖移動剤の配合割合は、モノマー混合物１００重量部に対して、例えば、０．００１〜０．５重量部程度である。 These chain transfer agents are appropriately used alone or in combination. Moreover, the mixture ratio of a chain transfer agent is about 0.001-0.5 weight part with respect to 100 weight part of monomer mixtures, for example.
架橋剤は、特に制限されないが、例えば、イソシアネート系架橋剤、エポキシ系架橋剤、オキサゾリン系架橋剤、アジリジン系架橋剤、金属キレート系架橋剤などが挙げられる。また、上記したシラン系モノマーを、架橋剤として用いることもできる。 The crosslinking agent is not particularly limited, and examples thereof include an isocyanate crosslinking agent, an epoxy crosslinking agent, an oxazoline crosslinking agent, an aziridine crosslinking agent, and a metal chelate crosslinking agent. Moreover, the above-mentioned silane monomer can also be used as a crosslinking agent.
これら架橋剤は、適宜、単独または併用して用いられる。また、架橋剤の配合割合は、モノマー混合物１００重量部に対して、例えば、０．０１〜５重量部程度である。 These crosslinking agents are suitably used alone or in combination. Moreover, the mixture ratio of a crosslinking agent is about 0.01-5 weight part with respect to 100 weight part of monomer mixtures, for example.
また、その他の添加剤として、例えば、ｐＨ緩衝剤、中和剤、発泡防止剤、安定剤など、乳化重合の添加剤として通常使用される公知のものが挙げられる。 Moreover, as other additives, for example, pH buffering agents, neutralizing agents, antifoaming agents, stabilizers and the like, which are commonly used as additives for emulsion polymerization, can be mentioned.
そして、乳化重合の方法は、特に制限されず、一括重合法、全量滴下法、これらを組み合わせた二段重合法などから、適宜選択することができる。 The method of emulsion polymerization is not particularly limited, and can be appropriately selected from a batch polymerization method, a total amount dropping method, a two-stage polymerization method combining these methods, and the like.
例えば、一括重合法では、反応容器に、モノマー混合物、反応性乳化剤および水を仕込み、撹拌混合により乳化させてエマルションを調製した後、さらに、この反応容器に、重合開始剤および必要により水を加えて、乳化重合する。 For example, in the batch polymerization method, a monomer mixture, a reactive emulsifier and water are charged into a reaction vessel and emulsified by stirring and mixing to prepare an emulsion, and then a polymerization initiator and water as necessary are added to the reaction vessel. And emulsion polymerization.
また、例えば、全量滴下法では、まず、モノマー混合物、反応性乳化剤および水を加えて、撹拌混合により乳化させて滴下液を調製するとともに、反応容器に、重合開始剤および水を仕込んでおき、次いで、滴下液を反応容器内に滴下して、乳化重合する。 Further, for example, in the total amount dropping method, first, a monomer mixture, a reactive emulsifier and water are added, and emulsified by stirring and mixing to prepare a dropping solution, and a polymerization initiator and water are charged into a reaction vessel, Next, the dropping solution is dropped into the reaction vessel to carry out emulsion polymerization.
このような乳化重合によって、モノマー混合物が重合してアクリル系ポリマーが合成され、そのアクリル系ポリマーが水中で乳化している、アクリル系ポリマーエマルションを得ることができる。 By such emulsion polymerization, the monomer mixture is polymerized to synthesize an acrylic polymer, and an acrylic polymer emulsion in which the acrylic polymer is emulsified in water can be obtained.
そして、このようにして得られたアクリル系ポリマーエマルションに、シランカップリング剤を配合することにより、本発明の光学部材用粘着組成物を調製する。 And the adhesive composition for optical members of this invention is prepared by mix | blending a silane coupling agent with the acrylic polymer emulsion obtained in this way.
シランカップリング剤としては、例えば、３−グリシドキシプロピルトリメトキシシラン、３−グリシドキシプロピルメチルジエトキシシラン、２−（３，４−エポキシシクロヘキシル）エチルトリメトキシシランなどのエポキシ基含有シランカップリング剤、例えば、３−アミノプロピルトリメトキシシラン、Ｎ−２（アミノエチル）３−アミノプロピルメチルジメトキシシラン、３−トリエトキシシリル−Ｎ−（１，３−ジメチル−ブチリデン）プロピルアミンなどのアミノ基含有シランカップリング剤、例えば、３−アクリロキシプロピルトリメトキシシラン、３−メタクリロキシプロピルトリエトキシシランなどの（メタ）アクリル基含有シランカップリング剤、例えば、３−イソシアネートプロピルトリエトキシシランなどのイソシアネート基含有シランカップリング剤などが挙げられる。 Examples of the silane coupling agent include epoxy group-containing silanes such as 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropylmethyldiethoxysilane, and 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane. Coupling agents such as 3-aminopropyltrimethoxysilane, N-2 (aminoethyl) 3-aminopropylmethyldimethoxysilane, 3-triethoxysilyl-N- (1,3-dimethyl-butylidene) propylamine Amino group-containing silane coupling agents, for example, (meth) acryl group-containing silane coupling agents such as 3-acryloxypropyltrimethoxysilane, 3-methacryloxypropyltriethoxysilane, such as 3-isocyanatopropyltriethoxysilane Iso Aneto group-containing silane coupling agent and the like.
このようなシランカップリング剤を用いることにより、耐久性の向上を図ることができる。 By using such a silane coupling agent, durability can be improved.
これらシランカップリング剤は、適宜、単独または併用して用いられる。また、シランカップリング剤の配合割合は、モノマー混合物１００重量部、すなわち、アクリル系ポリマーエマルションの固形分１００重量部に対して、０．０１〜１重量部、好ましくは、０．０３〜０．５重量部である。０．０１重量部未満であると、耐久性の向上を図ることができず、１重量部を超えると、再剥離性の向上を図ることができない。 These silane coupling agents are used alone or in combination as appropriate. Moreover, the compounding ratio of a silane coupling agent is 0.01-1 weight part with respect to 100 weight part of monomer mixtures, ie, 100 weight part of solid content of an acrylic polymer emulsion, Preferably, it is 0.03-0. 5 parts by weight. If it is less than 0.01 part by weight, the durability cannot be improved, and if it exceeds 1 part by weight, the removability cannot be improved.
また、本発明の光学部材用粘着組成物には、さらに、必要に応じて、例えば、紫外線吸収剤、老化防止剤、軟化剤、染料、顔料、充填剤などの公知の添加剤を配合することもできる。 The pressure-sensitive adhesive composition for optical members of the present invention may further contain known additives such as ultraviolet absorbers, anti-aging agents, softeners, dyes, pigments, fillers, and the like, if necessary. You can also.
そして、このようにして得られる本発明の光学部材用粘着組成物は、耐熱性や耐湿性などの耐久性に優れ、かつ、長時間経過後や高温高湿雰囲気下で保存しても、容易に剥離することができる、優れた再剥離性を発現するため、液晶表示装置に用いる光学部品を貼着するための光学部材用粘着層として、好適に用いることができる。 The thus obtained pressure-sensitive adhesive composition for optical members of the present invention is excellent in durability such as heat resistance and moisture resistance, and can be easily stored after a long period of time or in a high temperature and high humidity atmosphere. Therefore, it can be suitably used as an adhesive layer for an optical member for attaching an optical component used in a liquid crystal display device.
すなわち、本発明の光学部材用粘着層は、例えば、本発明の光学部材用粘着組成物を、その表面が剥離処理された基材上に塗工した後、乾燥することによって、光学部材用粘着シートとして形成することができ、これを光学部品に転写することによって、本発明の光学部材を作製することができる。 That is, the pressure-sensitive adhesive layer for optical members of the present invention is, for example, coated with the pressure-sensitive adhesive composition for optical members of the present invention on a substrate whose surface has been subjected to a release treatment, and then dried, whereby the pressure-sensitive adhesive layer for optical members. It can be formed as a sheet, and the optical member of the present invention can be produced by transferring it to an optical component.
基材としては、特に制限されず、例えば、ポリプロピレンフィルム、エチレン−プロピレン共重合体フィルム、ポリエステルフィルム、ポリ塩化ビニルなどのプラスチックフィルム類、例えば、クラフト紙などの紙類、例えば、綿布、スフ布などの布類、例えば、ポリエステル不織布、ビニロン不織布などの不織布類、例えば、金属箔などが挙げられる。 The substrate is not particularly limited, for example, polypropylene film, ethylene-propylene copolymer film, polyester film, plastic film such as polyvinyl chloride, paper such as kraft paper, for example, cotton cloth, soft cloth, etc. And non-woven fabrics such as polyester non-woven fabric and vinylon non-woven fabric, for example, metal foil.
また、基材の厚みは、その目的および用途などに応じて適宜選択されるが、例えば、２０〜１００μｍ程度である。 Moreover, although the thickness of a base material is suitably selected according to the objective, a use, etc., it is about 20-100 micrometers, for example.
また、基材の表面の剥離処理は、特に制限されないが、例えば、シリコーン剥離処理、長鎖アルキル剥離処理、フッ素剥離処理などが用いられる。 Further, the peeling treatment on the surface of the substrate is not particularly limited, and for example, a silicone peeling treatment, a long-chain alkyl peeling treatment, a fluorine peeling treatment or the like is used.
そして、本発明の光学部材用粘着組成物を基材上に塗工するには、例えば、グラビヤロールコーター、リバースロールコーター、キスロールコーター、ディップロールコーター、バーコーター、ナイフコーター、スプレーコーター、カーテンコーター、ダイコーターなどの粘着剤層の積層に通常使用されるコーターが用いられる。 In order to apply the pressure-sensitive adhesive composition for optical members of the present invention onto a substrate, for example, a gravure roll coater, reverse roll coater, kiss roll coater, dip roll coater, bar coater, knife coater, spray coater, curtain A coater usually used for laminating an adhesive layer such as a coater or a die coater is used.
なお、このような塗工において、光学部材用粘着組成物は、その乾燥後の厚みが、例えば、２〜５００μｍ、好ましくは、５〜１００μｍとなるように塗工される。 In such coating, the pressure-sensitive adhesive composition for optical members is coated such that the thickness after drying is, for example, 2 to 500 μm, preferably 5 to 100 μm.
また、その後の乾燥は、公知の方法によって、例えば、５０〜２００℃、好ましくは、８０〜１６０℃程度に加熱する。 Further, the subsequent drying is performed by a known method, for example, 50 to 200 ° C., preferably about 80 to 160 ° C.
このようにして得られた光学部材用粘着層は、そのゲル分（溶剤不溶分）が３０〜９５重量％、好ましくは、３５〜９０重量％である。３０重量％未満であると、ガラスに対する接着力が高くなり過ぎたり、高温高湿度下で発泡が起こる場合があり、９５重量％を超えると、高温高湿下で浮きや剥がれが生じる場合がある。 The thus obtained pressure-sensitive adhesive layer for an optical member has a gel content (solvent insoluble content) of 30 to 95% by weight, preferably 35 to 90% by weight. If it is less than 30% by weight, the adhesion to glass may become too high, or foaming may occur under high temperature and high humidity. If it exceeds 95% by weight, it may float or peel off under high temperature and high humidity. .
これによって、例えば、図１に示すように、基材１上に光学部材用粘着層２が積層された光学部材用粘着シート３を得ることができる。
Thereby, for example, as shown in FIG. 1, an optical member pressure-
そして、この光学部材用粘着シートの基材から、光学部材用粘着層を光学部品に転写することによって、光学部材を得ることができる。 Then, the optical member can be obtained by transferring the optical member pressure-sensitive adhesive layer to the optical component from the base material of the optical member pressure-sensitive adhesive sheet.
光学部品は、特に制限されないが、例えば、液晶表示装置などに用いられる、例えば、偏光フィルム（偏光板）、位相差フィルム（位相差板）、楕円偏光フィルム（楕円偏光板）などの光学フィルムが挙げられる。 The optical component is not particularly limited. For example, an optical film such as a polarizing film (polarizing plate), a retardation film (retarding plate), or an elliptical polarizing film (elliptic polarizing plate) used in a liquid crystal display device or the like is used. Can be mentioned.
偏光フィルムを構成する偏光子としては、特に制限されず、各種のものを使用できる。偏光子としては、例えば、ポリビニルアルコール系フィルムや、部分ホルマール化ポリビニルアルコール系フィルム、エチレン・酢酸ビニル共重合体系部分ケン化フィルムなどの親水性高分子フィルムに、ヨウ素や二色性染料などの二色性物質を吸着させて延伸した延伸フィルム、さらには、この延伸フィルムに、トリアセチルセルロースフィルム、ポリカーボネートフィルムなどの保護フィルムを積層したフィルム、さらには、延伸フィルムや保護フィルムに、微細凹凸を施したもの、蒸着処理したもの、保護粘着フィルムを積層したもの、各種表面処理したものなどが挙げられる。また、例えば、ポリビニルアルコールの脱水処理物やポリ塩化ビニルの脱塩酸処理物などのポリエン系配向フィルムなども挙げられる。偏光子の厚さは、特に制限されず、５〜８０μｍ程度が一般的である。 It does not restrict | limit especially as a polarizer which comprises a polarizing film, Various things can be used. Examples of the polarizer include hydrophilic polymer films such as polyvinyl alcohol-based films, partially formalized polyvinyl alcohol-based films, and ethylene / vinyl acetate copolymer partially saponified films, and iodine and dichroic dyes. A stretched film that has been stretched by adsorbing a chromatic substance, a film in which a protective film such as a triacetyl cellulose film or a polycarbonate film is laminated on the stretched film, and fine stretches are applied to the stretched film or the protective film. , Those subjected to vapor deposition treatment, those obtained by laminating a protective adhesive film, those subjected to various surface treatments, and the like. Moreover, for example, polyene-based oriented films such as dehydrated polyvinyl alcohol and dehydrochlorinated polyvinyl chloride are also included. The thickness of the polarizer is not particularly limited and is generally about 5 to 80 μm.
また、偏光子の片面または両面には、透明保護層を、耐水性などの目的で、ポリマーによる塗布層として、または、フィルムのラミネート層などとして設けることができる。透明保護層を形成する透明ポリマーまたはフィルム材料としては、適宜、透明材料を用い得るが、透明性、機械的強度、熱安定性および水分遮断性などに優れるものが好ましく用いられる。透明保護層の厚さは、特に制限されず、１０〜３００μｍ程度が一般的である。 In addition, a transparent protective layer can be provided on one or both sides of the polarizer as a polymer coating layer or a film laminate layer for the purpose of water resistance. As the transparent polymer or film material forming the transparent protective layer, a transparent material can be used as appropriate, but a material excellent in transparency, mechanical strength, thermal stability, moisture barrier property and the like is preferably used. The thickness in particular of a transparent protective layer is not restrict | limited, About 10-300 micrometers is common.
このような透明保護層を形成する材料としては、例えば、ポリエチレンテレフタレート、ポリエチレンナフタレートなどのポリエステル系ポリマー、例えば、二酢酸セルロース、三酢酸セルロースなどのセルロース系ポリマー、例えば、ポリメチルメタクリレートなどのアクリル系ポリマー、例えば、ポリスチレン、アクリロニトリル・スチレン共重合体（ＡＳ樹脂）などのスチレン系ポリマー、例えば、ポリカーボネート系ポリマーなどが挙げられる。また、例えば、ポリエチレン、ポリプロピレン、シクロ系およびノルボルネン構造を有するポリオレフィン、エチレン・プロピレン共重合体などのポリオレフィン系ポリマー、塩化ビニル系ポリマー、ナイロンや芳香族ポリアミドなどのアミド系ポリマー、イミド系ポリマー、スルホン系ポリマー、ポリエーテルスルホン系ポリマー、ポリエーテルエーテルケトン系ポリマー、ポリフェニレンスルフィド系ポリマー、ビニルアルコール系ポリマー、塩化ビニリデン系ポリマー、ビニルブチラール系ポリマー、アリレート系ポリマー、ポリオキシメチレン系ポリマー、エポキシ系ポリマー、あるいは、上記したポリマーのブレンドポリマーなども挙げられる。 Examples of the material for forming such a transparent protective layer include polyester polymers such as polyethylene terephthalate and polyethylene naphthalate, cellulose polymers such as cellulose diacetate and cellulose triacetate, and acrylic polymers such as polymethyl methacrylate. Examples thereof include styrenic polymers such as polystyrene and acrylonitrile / styrene copolymer (AS resin) such as polycarbonate polymer. Also, for example, polyethylene, polypropylene, polyolefins having cyclo and norbornene structures, polyolefin polymers such as ethylene / propylene copolymers, vinyl chloride polymers, amide polymers such as nylon and aromatic polyamide, imide polymers, sulfones Polymer, polyether sulfone polymer, polyether ether ketone polymer, polyphenylene sulfide polymer, vinyl alcohol polymer, vinylidene chloride polymer, vinyl butyral polymer, arylate polymer, polyoxymethylene polymer, epoxy polymer, Or the blend polymer of the above-mentioned polymer etc. are mentioned.
位相差フィルムとしては、高分子素材を一軸延伸処理または二軸延伸処理してなる複屈折性フィルムや、液晶ポリマーフィルムなどが挙げられる。位相差フィルムの厚さは、特に制限されず、２０〜１５０μｍ程度が一般的である。位相差フィルムは、二層以上の延伸フィルムの重畳体などとして形成して、位相差などの光学特性を制御したものとして形成することもできる。 Examples of the retardation film include a birefringent film obtained by uniaxially stretching or biaxially stretching a polymer material, and a liquid crystal polymer film. The thickness of the retardation film is not particularly limited, and is generally about 20 to 150 μm. The retardation film can be formed as a superposed body of stretched films of two or more layers, and the optical properties such as retardation are controlled.
高分子素材としては、例えば、ポリビニルアルコール、ポリビニルブチラール、ポリメチルビニルエーテル、ポリヒドロキシエチルアクリレート、ヒドロキシエチルセルロース、ヒドロキシプロピルセルロース、メチルセルロース、ポリカーボネート、ポリメチルメタクリレート、ポリオレフィン、ポリアリレート、ポリスルホン、ポリエチレンテレフタレート、ポリエチレンナフタレート、ポリエーテルスルホン、ポリフェニレンスルファイド、ポリフェニレンオキサイド、ポリアリルスルホン、ポリビニルアルコール、ポリアミド、ポリイミド、ポリオレフィン、ポリ塩化ビニル、セルロース系重合体、または、これらの二元系、三元系共重合体、グラフト共重合体、ブレンドポリマーなどが挙げられる。これら高分子素材は、延伸などにより配向物（延伸フィルム）となる。 Examples of the polymer material include polyvinyl alcohol, polyvinyl butyral, polymethyl vinyl ether, polyhydroxyethyl acrylate, hydroxyethyl cellulose, hydroxypropyl cellulose, methyl cellulose, polycarbonate, polymethyl methacrylate, polyolefin, polyarylate, polysulfone, polyethylene terephthalate, polyethylene naphthalate. Phthalate, polyethersulfone, polyphenylene sulfide, polyphenylene oxide, polyallylsulfone, polyvinyl alcohol, polyamide, polyimide, polyolefin, polyvinyl chloride, cellulose polymer, or a binary or ternary copolymer thereof. A graft copolymer, a blend polymer, etc. are mentioned. These polymer materials become an oriented product (stretched film) by stretching or the like.
液晶性ポリマーとしては、例えば、液晶配向性を付与する共役性の直線状原子団（メソゲン）が、ポリマーの主鎖や側鎖に導入された主鎖型や側鎖型の各種のものなどが挙げられる。 Examples of the liquid crystalline polymer include various main chain types and side chain types in which a conjugated linear atomic group (mesogen) imparting liquid crystal alignment is introduced into the main chain or side chain of the polymer. Can be mentioned.
主鎖型の液晶性ポリマーの具体例としては、屈曲性を付与するスペーサ部でメソゲン基を結合した構造の、例えば、ネマチック配向性のポリエステル系液晶性ポリマーなどが挙げられる。 Specific examples of the main chain type liquid crystalline polymer include, for example, a nematic orientation polyester-based liquid crystalline polymer having a structure in which a mesogenic group is bonded at a spacer portion imparting flexibility.
側鎖型の液晶性ポリマーの具体例としては、ポリシロキサン、ポリアクリレート、ポリメタクリレートまたはポリマロネートを主鎖骨格とし、側鎖として共役性の原子団からなるスペーサ部を介してネマチック配向付与性のパラ置換環状化合物単位からなるメソゲン部を有するものなどが挙げられる。これら液晶性ポリマーは、例えば、ガラス板上に形成したポリイミドやポリビニルアルコールなどの薄膜の表面をラビング処理したものや、酸化珪素を斜方蒸着したものなどの配向処理面上に液晶性ポリマーの溶液を展開して熱処理したものとして、得ることができる。 Specific examples of the side chain type liquid crystalline polymer include polysiloxane, polyacrylate, polymethacrylate, or polymalonate as a main chain skeleton, and a nematic alignment imparting paraffin through a spacer portion composed of a conjugated atomic group as a side chain. Examples thereof include those having a mesogen moiety composed of a substituted cyclic compound unit. These liquid crystalline polymers are, for example, solutions of liquid crystalline polymers on alignment treatment surfaces such as those obtained by rubbing the surface of a thin film such as polyimide or polyvinyl alcohol formed on a glass plate or those obtained by obliquely depositing silicon oxide. Can be obtained as a heat-treated product.
楕円偏光フィルムは、着色防止や視角範囲の拡大などを目的として、液晶セルの位相差を補償するためなどに用いられ、例えば、偏光フィルムと位相差フィルムとを積層することにより得ることができる。 The elliptically polarizing film is used for compensating the retardation of the liquid crystal cell for the purpose of preventing coloring or expanding the viewing angle range, and can be obtained, for example, by laminating a polarizing film and a retardation film.
また、偏光フィルム、位相差フィルムは、積層して用いることもでき、反射型偏光フィルム、半透過層型偏光フィルム、偏光分離偏光フィルムなどとして使用することができる。 In addition, the polarizing film and the retardation film can be used by being laminated, and can be used as a reflective polarizing film, a semi-transmissive layer polarizing film, a polarizing separation polarizing film, and the like.
また、上記した光学フィルムは、光学補償フィルム、その他の各種の視野角拡大フィルムとして使用することもでき、さらには、輝度向上フィルムとして使用することもできる。また、偏光フィルムは、その表面に微細凹凸構造の反射層を設けて、防眩シートとして使用することもできる。 The optical film described above can also be used as an optical compensation film, other various viewing angle widening films, and can also be used as a brightness enhancement film. Moreover, a polarizing film can also be used as an anti-glare sheet | seat by providing the reflective layer of a fine uneven structure on the surface.
光学部材用粘着層を光学部品に転写するには、例えば、光学部材用粘着シートの光学部材用粘着層を光学部品に接触させた状態で押圧し、その後、基材のみを光学部品から引き剥がすようにする。 In order to transfer the adhesive layer for optical members to the optical component, for example, the optical member adhesive layer of the optical member adhesive sheet is pressed in contact with the optical component, and then only the substrate is peeled off from the optical component. Like that.
これによって、例えば、図２に示すように、光学部品４の片面（または、仮想線で示すように両面）に、光学部材用粘着層２が積層された光学部材５を得ることができる。
Thereby, for example, as shown in FIG. 2, an
また、上記した方法以外に、本発明の光学部材用粘着組成物を、光学部品に、上記と同様の方法によって、直接塗工した後、乾燥することによって、光学部材用粘着層を光学部品に直接形成するとともに、その光学部材用粘着層が光学部品に積層された光学部材を作製することもできる。 In addition to the method described above, the pressure-sensitive adhesive composition for optical members of the present invention is directly applied to an optical component by the same method as described above, and then dried, whereby the pressure-sensitive adhesive layer for optical members is applied to the optical component. While forming directly, the optical member by which the adhesion layer for optical members was laminated | stacked on the optical component can also be produced.
また、上記した光学部材用粘着シートや光学部材において、露出する光学部材用粘着層２の表面には、実際の使用に供するまでの間、剥離ライナーなど、剥離処理されている保護フィルムを、適宜貼着しておいてもよい。なお、図１および図２において、剥離ライナーは、仮想線（符号６）で示されている。
Further, in the above-described optical member pressure-sensitive adhesive sheet or optical member, the exposed surface of the optical member pressure-
そして、このようにして得られる本発明の光学部材用粘着層および光学部材用粘着シートでは、光学部品の貼着に必要な物性、すなわち、高温高湿環境下においても、浮きや剥がれを防止することができ、耐熱性や耐湿性などの耐久性に優れ、光学部品の貼着後、長時間経過後や高温高湿雰囲気下で保存しても、その後、容易に剥離することができる。 The optical member pressure-sensitive adhesive layer and the optical member pressure-sensitive adhesive sheet of the present invention thus obtained prevent physical properties required for sticking optical components, that is, even in a high-temperature and high-humidity environment. It is excellent in durability such as heat resistance and moisture resistance, and can be easily peeled off after the optical component is pasted, even after being stored for a long time or in a high temperature and high humidity atmosphere.
とりわけ、本発明の光学部材用粘着シートは、ガラスに貼着し、６０℃にて１７時間経過後のガラスに対する接着力が、１０Ｎ／２５ｍｍ以下となり、良好な再剥離性を発現することができる。そのため、液晶表示装置に対する光学部品の剥離時において、液晶表示装置に損傷を与えることなく、光学部品を容易に剥離することができる。 In particular, the pressure-sensitive adhesive sheet for optical members of the present invention is adhered to glass, and the adhesive strength to glass after 17 hours at 60 ° C. is 10 N / 25 mm or less, and can exhibit good removability. . Therefore, when the optical component is peeled from the liquid crystal display device, the optical component can be easily peeled without damaging the liquid crystal display device.
以下に実施例および比較例を挙げて、本発明をより具体的に説明する。ただし、本発明は、以下の実施例および比較例に何ら限定されるものではない。 Hereinafter, the present invention will be described more specifically with reference to examples and comparative examples. However, the present invention is not limited to the following examples and comparative examples.
なお、各実施例および各比較例で得られた光学部材用粘着シートのゲル分は下記の計算式（１）を用いて、算出した。 In addition, the gel part of the adhesive sheet for optical members obtained by each Example and each comparative example was computed using the following formula (1).
ゲル分測定方法
粘着層Ｗ１〔ｇ〕を酢酸エチル中、２３℃で７日間浸漬し、その乾燥後の重量がＷ２〔ｇ〕であるとき
ゲル分（重量％）＝（Ｗ２／Ｗ１）×１００ （１）
実施例１
２−エチルヘキシルアクリレート７０重量部、ブチルアクリレート３０重量部、アクリル酸１重量部、および、３−アクリロキシプロピルトリエトキシシラン０．０７重量部を、アクアロンＨＳ−１０（反応性乳化剤、第一工業製薬（株）製）２重量部を添加した水２５重量部に加えて、ホモミキサーで乳化することによって乳化液を調製した。
Gel content measurement method When the adhesive layer W 1 [g] is immersed in ethyl acetate at 23 ° C. for 7 days and the weight after drying is W 2 [g] Gel content (wt%) = (W 2 / W 1 ) x 100 (1)
Example 1
70 parts by weight of 2-ethylhexyl acrylate, 30 parts by weight of butyl acrylate, 1 part by weight of acrylic acid, and 0.07 part by weight of 3-acryloxypropyltriethoxysilane were mixed with Aqualon HS-10 (reactive emulsifier, Daiichi Kogyo Seiyaku Co., Ltd.). In addition to 25 parts by weight of water to which 2 parts by weight were added, an emulsion was prepared by emulsifying with a homomixer.
次に、窒素導入管、冷却管および温度計を備えた４つ口フラスコを、１時間窒素置換した後、その４つ口フラスコに、水３０重量部および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（ＶＡ−０５７、和光純薬（株）製）０．１重量部を加えて、上記で得られた乳化液を、５９℃にて４．５時間かけて滴下し乳化重合した。重合終了後、アンモニアを加えてｐＨを８に調整し、アクリル系ポリマーエマルションＡ１を得た。 Next, a 4-necked flask equipped with a nitrogen introducing tube, a cooling tube and a thermometer was purged with nitrogen for 1 hour, and then 30 parts by weight of water and 2,2′-azobis [N- ( 2-Carboxyethyl) -2-methylpropionamidine] hydrate (VA-057, manufactured by Wako Pure Chemical Industries, Ltd.) (0.1 part by weight) was added, and the emulsion obtained above was added at 59 ° C. at 4 ° C. Dropped over 5 hours for emulsion polymerization. After completion of the polymerization, ammonia was added to adjust the pH to 8 to obtain an acrylic polymer emulsion A1.
次に、アクリル系ポリマーエマルションＡ１の固形分１００重量部に対して、３−グリシドキシプロピルトリエトキシシラン（ＫＢＥ−４０３、信越化学工業（株）製）０．２重量部を添加し、光学部材用粘着組成物を得た。 Next, 0.2 part by weight of 3-glycidoxypropyltriethoxysilane (KBE-403, manufactured by Shin-Etsu Chemical Co., Ltd.) is added to 100 parts by weight of the solid content of the acrylic polymer emulsion A1, and optical An adhesive composition for members was obtained.
この光学部材用粘着組成物を、シリコーン剥離処理した３８μｍのＰＥＴ（ポリエチレンテレフタレート）フィルムに、乾燥後の厚さが２０μｍとなるように塗工し、１２０℃で５分間乾燥することにより、光学部材用粘着組成物からなる光学部材用粘着層が積層される光学部材用粘着シートを得た。なお、ゲル分は７２重量％であった。 This optical member pressure-sensitive adhesive composition was coated on a 38 μm PET (polyethylene terephthalate) film subjected to silicone release treatment so that the thickness after drying would be 20 μm, and dried at 120 ° C. for 5 minutes to obtain an optical member. The adhesive sheet for optical members on which the adhesive layer for optical members which consists of adhesive compositions for optical films was laminated | stacked was obtained. The gel content was 72% by weight.
その後、この光学部材用粘着シートの光学部材用粘着層を、偏光フィルムに転写して、光学部材を作製した。 Thereafter, the optical member pressure-sensitive adhesive layer of the optical member pressure-sensitive adhesive sheet was transferred to a polarizing film to prepare an optical member.
実施例２
アクアロンＨＳ−１０（反応性乳化剤、第一工業製薬（株）製）をアクアロンＨＳ−２０（反応性乳化剤、第一工業製薬（株）製）に変更すること以外は、実施例１と同様の操作によって、アクリル系ポリマーエマルションＡ２を得た。
Example 2
Except for changing Aqualon HS-10 (reactive emulsifier, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) to Aqualon HS-20 (reactive emulsifier, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), the same as in Example 1 By the operation, an acrylic polymer emulsion A2 was obtained.
次に、アクリル系ポリマーエマルションＡ２の固形分１００重量部に対して、３−グリシドキシプロピルトリエトキシシラン（ＫＢＥ−４０３、信越化学工業（株）製）０．２重量部を添加し、光学部材用粘着組成物を得た。 Next, 0.2 part by weight of 3-glycidoxypropyltriethoxysilane (KBE-403, manufactured by Shin-Etsu Chemical Co., Ltd.) is added to 100 parts by weight of the solid content of the acrylic polymer emulsion A2, and optical An adhesive composition for members was obtained.
以下、実施例１と同様の操作により光学部材用粘着シートおよび光学部材を作製した。 Hereafter, the adhesive sheet for optical members and the optical member were produced by the same operation as Example 1.
なお、光学部材用粘着シートのゲル分は、７１重量％であった。 In addition, the gel part of the adhesive sheet for optical members was 71 weight%.
実施例３
２−エチルヘキシルアクリレート７０重量部、ブチルアクリレート３０重量部、アクリル酸１重量部を、アクアロンＨＳ−１０（反応性乳化剤、第一工業製薬（株）製）２重量部を添加した水１２０重量部に加えて、ホモミキサーにより乳化することによって乳化液を調製した。
Example 3
70 parts by weight of 2-ethylhexyl acrylate, 30 parts by weight of butyl acrylate and 1 part by weight of acrylic acid were added to 120 parts by weight of water to which 2 parts by weight of Aqualon HS-10 (Reactive emulsifier, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) was added. In addition, an emulsion was prepared by emulsifying with a homomixer.
次に、窒素導入管、冷却管および温度計を備えた４つ口フラスコを、１時間窒素置換した後、その４つ口フラスコに、上記で得られた乳化液、および、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（ＶＡ−０５７、和光純薬（株）製）０．０３重量部を加えて、５６℃にて３．５時間乳化重合した（一括部）。 Next, a four-necked flask equipped with a nitrogen introduction tube, a cooling tube, and a thermometer was purged with nitrogen for 1 hour, and then the emulsion obtained above and 2,2′- Add 0.03 parts by weight of azobis [N- (2-carboxyethyl) -2-methylpropionamidine] hydrate (VA-057, manufactured by Wako Pure Chemical Industries, Ltd.) and emulsify at 56 ° C. for 3.5 hours. Polymerized (collective part).
続いて、２−エチルヘキシルアクリレート７０重量部、ブチルアクリレート３０重量部、アクリル酸１重量部、アクアロンＨＳ−１０（反応性乳化剤、第一工業製薬（株）製）２重量部および水３０重量部からなる乳化液を調製し、これを５９℃にて２．５時間かけて滴下し乳化重合した（滴下部）。重合終了後、アンモニアを加えてｐＨを８に調整し、アクリル系ポリマーエマルションＡ３を得た。なお、一括部と滴下部との割合は、７０／３０であった。 Subsequently, from 70 parts by weight of 2-ethylhexyl acrylate, 30 parts by weight of butyl acrylate, 1 part by weight of acrylic acid, 2 parts by weight of Aqualon HS-10 (reactive emulsifier, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) and 30 parts by weight of water The resulting emulsion was prepared and added dropwise at 59 ° C. over 2.5 hours for emulsion polymerization (dropping part). After completion of the polymerization, ammonia was added to adjust the pH to 8 to obtain an acrylic polymer emulsion A3. In addition, the ratio of a collective part and a dripping part was 70/30.
次に、アクリル系ポリマーエマルションＡ３の固形分１００重量部に対して、３−グリシドキシプロピルトリエトキシシラン（ＫＢＥ−４０３、信越化学工業（株）製）０．２重量部を添加し、光学部材用粘着組成物を得た。 Next, 0.2 parts by weight of 3-glycidoxypropyltriethoxysilane (KBE-403, manufactured by Shin-Etsu Chemical Co., Ltd.) is added to 100 parts by weight of the solid content of the acrylic polymer emulsion A3. An adhesive composition for members was obtained.
以下、実施例１と同様の操作により光学部材用粘着シートおよび光学部材を作製した。 Hereafter, the adhesive sheet for optical members and the optical member were produced by the same operation as Example 1.
なお、光学部材用粘着シートのゲル分は、８２重量％であった。 In addition, the gel part of the adhesive sheet for optical members was 82 weight%.
比較例１
アクアロンＨＳ−１０（反応性乳化剤、第一工業製薬（株）製）をハイテノールＮＦ８（非反応性乳化剤、第一工業製薬（株）製）に変更すること以外は、実施例１と同様の操作によって、アクリル系ポリマーエマルションＡ４を得た。
Comparative Example 1
Except for changing Aqualon HS-10 (reactive emulsifier, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) to Hytenol NF8 (non-reactive emulsifier, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), the same as in Example 1 By the operation, an acrylic polymer emulsion A4 was obtained.
次に、アクリル系ポリマーエマルションＡ４の固形分１００重量部に対して、３−グリシドキシプロピルトリエトキシシラン（ＫＢＥ−４０３、信越化学工業（株）製）０．２重量部を添加し、光学部材用粘着組成物を得た。 Next, 0.2 part by weight of 3-glycidoxypropyltriethoxysilane (KBE-403, manufactured by Shin-Etsu Chemical Co., Ltd.) is added to 100 parts by weight of the solid content of the acrylic polymer emulsion A4. An adhesive composition for members was obtained.
以下、実施例１と同様の操作により光学部材用粘着シートおよび光学部材を作製した。 Hereafter, the adhesive sheet for optical members and the optical member were produced by the same operation as Example 1.
なお、光学部材用粘着シートのゲル分は、５８重量％であった。 In addition, the gel part of the adhesive sheet for optical members was 58 weight%.
比較例２
アクアロンＨＳ−１０（反応性乳化剤、第一工業製薬（株）製）をラテムルＥ−１１８Ｂ（非反応性乳化剤、（株）花王製）に変更すること以外は、実施例１と同様の操作によって、アクリル系ポリマーエマルションＡ５を得た。
Comparative Example 2
Except for changing Aqualon HS-10 (reactive emulsifier, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) to Latemul E-118B (non-reactive emulsifier, manufactured by Kao Co., Ltd.), the same operation as in Example 1 was performed. An acrylic polymer emulsion A5 was obtained.
次に、アクリル系ポリマーエマルションＡ５固形分１００重量部に対して、３−グリシドキシプロピルトリエトキシシラン（ＫＢＥ−４０３、信越化学工業（株）製）０．２重量部を添加し光学部材用粘着組成物を得た。 Next, 0.2 parts by weight of 3-glycidoxypropyltriethoxysilane (KBE-403, manufactured by Shin-Etsu Chemical Co., Ltd.) is added to 100 parts by weight of the solid content of acrylic polymer emulsion A5 for optical members. An adhesive composition was obtained.
以下、実施例１と同様の操作により光学部材用粘着シートおよび光学部材を作製した。 Hereafter, the adhesive sheet for optical members and the optical member were produced by the same operation as Example 1.
なお、光学部材用粘着シートのゲル分は、７１重量％であった。 In addition, the gel part of the adhesive sheet for optical members was 71 weight%.
比較例３
アクアロンＨＳ−１０（反応性乳化剤、第一工業製薬（株）製）をハイテノールＮＦ８（非反応性乳化剤、第一工業製薬（株）製）に変更すること以外は、実施例３と同様の操作によって、アクリル系ポリマーエマルションＡ６を得た。
Comparative Example 3
Except for changing Aqualon HS-10 (reactive emulsifier, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) to Hytenol NF8 (non-reactive emulsifier, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), the same as in Example 3 By the operation, an acrylic polymer emulsion A6 was obtained.
次に、アクリル系ポリマーエマルションＡ６固形分１００重量部に対して、３−グリシドキシプロピルトリエトキシシラン（ＫＢＥ−４０３、信越化学工業（株）製）０．２重量部を添加し光学部材用粘着組成物を得た。 Next, 0.2 parts by weight of 3-glycidoxypropyltriethoxysilane (KBE-403, manufactured by Shin-Etsu Chemical Co., Ltd.) is added to 100 parts by weight of the acrylic polymer emulsion A6 solid content for optical members. An adhesive composition was obtained.
以下、実施例１と同様の操作により光学部材用粘着シートおよび光学部材を作製した。 Hereafter, the adhesive sheet for optical members and the optical member were produced by the same operation as Example 1.
なお、光学部材用粘着シートのゲル分は、８０重量％であった。 In addition, the gel part of the adhesive sheet for optical members was 80 weight%.
比較例４
実施例１で得られたアクリル系ポリマーエマルションＡ１に対して、３−グリシドキシプロピルトリエトキシシラン（ＫＢＥ−４０３、信越化学工業（株）製）を添加しなかった以外は、実施例１と同様の操作によって、光学部材用粘着粘着組成物を得た。
Comparative Example 4
Except that 3-glycidoxypropyltriethoxysilane (KBE-403, manufactured by Shin-Etsu Chemical Co., Ltd.) was not added to the acrylic polymer emulsion A1 obtained in Example 1, Example 1 and By the same operation, an adhesive pressure-sensitive adhesive composition for optical members was obtained.
以下、実施例１と同様の操作により光学部材用粘着シートおよび光学部材を作製した。 Hereafter, the adhesive sheet for optical members and the optical member were produced by the same operation as Example 1.
なお、光学部材用粘着シートのゲル分は、７２重量％であった。 In addition, the gel part of the adhesive sheet for optical members was 72 weight%.
比較例５
実施例１で得られたアクリル系ポリマーエマルションＡ１固形分１００重量部に対して、３−グリシドキシプロピルトリエトキシシラン（ＫＢＥ−４０３、信越化学工業（株）製）３重量部を添加し光学部材用粘着組成物を得た。
Comparative Example 5
3 parts by weight of 3-glycidoxypropyltriethoxysilane (KBE-403, manufactured by Shin-Etsu Chemical Co., Ltd.) is added to 100 parts by weight of the solid content of the acrylic polymer emulsion A1 obtained in Example 1, and optical. An adhesive composition for members was obtained.
以下、実施例１と同様の操作により光学部材用粘着シートおよび光学部材を作製した。 Hereafter, the adhesive sheet for optical members and the optical member were produced by the same operation as Example 1.
なお、光学部材用粘着シートのゲル分は、７２重量％であった。 In addition, the gel part of the adhesive sheet for optical members was 72 weight%.
比較例６
２−エチルヘキシルアクリレート７０重量部、ブチルアクリレート３０重量部、アクリル酸１重量部、２−ヒドロキシエチルアクリレート０．１５重量部、２，２−アゾビスイソブチロニトリル０．１重量部、および、酢酸エチル２００重量部を、窒素導入管、冷却管を備えた４つ口フラスコに投入し、十分窒素置換した後、窒素気流下で攪拌しながら５５℃にて６時間乳化重合し、アクリル系ポリマー溶液Ａ８を得た。
Comparative Example 6
70 parts by weight of 2-ethylhexyl acrylate, 30 parts by weight of butyl acrylate, 1 part by weight of acrylic acid, 0.15 part by weight of 2-hydroxyethyl acrylate, 0.1 part by weight of 2,2-azobisisobutyronitrile, and acetic acid 200 parts by weight of ethyl was put into a four-necked flask equipped with a nitrogen introduction tube and a cooling tube, sufficiently purged with nitrogen, and then emulsion-polymerized at 55 ° C. for 6 hours with stirring under a nitrogen stream to prepare an acrylic polymer solution A8 was obtained.
次に、アクリル系ポリマーー溶液Ａ８の固形分１００重量部に対して、３−グリシドキシプロピルトリエトキシシラン（ＫＢＥ−４０３、信越化学工業（株）製）０．２重量部、および、トリメチロールプロパンのトリレンジイソシアネート付加物からなるポリイソシアネート系架橋剤１．５重量部を、均一に混合して、光学部材用粘着組成物を得た。 Next, 0.2 part by weight of 3-glycidoxypropyltriethoxysilane (KBE-403, manufactured by Shin-Etsu Chemical Co., Ltd.) and trimethylol with respect to 100 parts by weight of the solid content of the acrylic polymer solution A8 1.5 parts by weight of a polyisocyanate-based crosslinking agent composed of a tolylene diisocyanate adduct of propane was uniformly mixed to obtain a pressure-sensitive adhesive composition for an optical member.
この光学部材用粘着組成物を、シリコーン剥離処理した３８μｍのＰＥＴ（ポリエチレンテレフタレート）フィルムに、乾燥後の厚さが２０μｍとなるように塗工し、１２０℃で５分乾燥および架橋することにより、光学部材用粘着組成物からなる光学部材用粘着層が積層される光学部材用粘着シートを得た。 By applying this pressure-sensitive adhesive composition for optical members to a 38 μm PET (polyethylene terephthalate) film subjected to silicone release treatment so that the thickness after drying is 20 μm, and drying and crosslinking at 120 ° C. for 5 minutes, An optical member pressure-sensitive adhesive sheet on which an optical member pressure-sensitive adhesive layer comprising the optical member pressure-sensitive adhesive composition was laminated was obtained.
なお、光学部材用粘着シートのゲル分は、６９重量％であった。 In addition, the gel part of the adhesive sheet for optical members was 69 weight%.
その後、この光学部材用粘着シートの光学部材用粘着層を、偏光フィルムに転写し、５０℃にて２４時間エージング処理することにより、光学部材を作製した。 Thereafter, the optical member pressure-sensitive adhesive layer of the optical member pressure-sensitive adhesive sheet was transferred to a polarizing film and subjected to an aging treatment at 50 ° C. for 24 hours to produce an optical member.
評価
１）接着力
各実施例および各比較例で得られた光学部材（幅２５ｍｍ）を、無アルカリガラス板に２ｋｇのロールを１往復させることで貼着し、５０℃、０．５ＭＰａのオートクレーブにて３０分間処理した後、剥離角度９０°、剥離速度３００ｍｍ／分で、剥離接着力（初期接着力）（Ｎ／２５ｍｍ）を測定した。その結果を表１に示す。
Evaluation 1) Adhesive force The optical member (25 mm in width) obtained in each example and each comparative example was attached to a non-alkali glass plate by reciprocating a 2 kg roll, and the autoclave at 50 ° C. and 0.5 MPa. Then, the peel adhesion force (initial adhesion force) (N / 25 mm) was measured at a peel angle of 90 ° and a peel speed of 300 mm / min. The results are shown in Table 1.
さらに、オートクレーブ処理後、６０℃にて１７時間放置後、剥離角度９０°、剥離速度３００ｍｍ／分で剥離接着力（耐久後接着力）（Ｎ／２５ｍｍ）を測定した。その結果を表１に示す。なお、耐久後接着力は、初期接着力とともに、接着力が増大しないことが望まれる。 Further, after the autoclave treatment, the film was allowed to stand at 60 ° C. for 17 hours, and the peel adhesive strength (adhesive strength after durability) (N / 25 mm) was measured at a peel angle of 90 ° and a peel speed of 300 mm / min. The results are shown in Table 1. The post-durability adhesive force is desired not to increase with the initial adhesive force.
２）耐熱性
各実施例および各比較例で得られた光学部材（１２インチサイズ）を、厚さ０．５ｍｍの無アルカリガラスに貼着し、５０℃、０．５ＭＰａのオートクレーブにて３０分間処理した後、９０℃の雰囲気下で３００時間放置し、光学部材のガラスからの浮きおよび剥がれを目視にて観察した。その結果を表１に示す。
2) Heat resistance The optical member (12-inch size) obtained in each Example and each Comparative Example was attached to a non-alkali glass having a thickness of 0.5 mm, and then 30 minutes in an autoclave at 50 ° C. and 0.5 MPa. After the treatment, the substrate was allowed to stand for 300 hours in an atmosphere at 90 ° C., and the floating and peeling of the optical member from the glass were visually observed. The results are shown in Table 1.
なお耐熱性の判定基準は次の通りである。 The criteria for determining heat resistance are as follows.
○：浮きおよび剥がれなし
×：貼着面積に対して５０％未満の範囲で剥離あり
××：貼着面積に対して５０％以上の範囲で剥離あり
３）耐湿性
各実施例および各比較例で得られた光学部材（１２インチサイズ）を、厚さ０．５ｍｍの無アルカリガラスに貼着し、５０℃、０．５ＭＰａのオートクレーブにて３０分間処理した後、６０℃、９０％ＲＨの雰囲気下で３００時間放置して、光学部材のガラスからの浮きおよび剥がれを目視にて観察した。その結果を表１に示す。
○: No lifting or peeling ×: Peeling in a range of less than 50% with respect to the sticking area XX: Peeling in a range of 50% or more with respect to the sticking area 3) Moisture resistance Examples and comparative examples The optical member (12-inch size) obtained in (1) was attached to a non-alkali glass having a thickness of 0.5 mm, treated in an autoclave at 50 ° C. and 0.5 MPa for 30 minutes, and then at 60 ° C. and 90% RH. The substrate was left for 300 hours in an atmosphere, and the optical member was visually observed for lifting and peeling from the glass. The results are shown in Table 1.
なお耐湿性の判定基準は次の通りである。 The criteria for determining moisture resistance are as follows.
○：浮きおよび剥がれなし
×：貼着面積に対して５０％未満の範囲で剥離あり
××：貼着面積に対して５０％以上の範囲で剥離あり
○: No lifting or peeling ×: Peeling in a range of less than 50% with respect to the sticking area XX: Peeling in a range of 50% or more with respect to the sticking area
表１から、再剥離性、耐熱性および耐湿性のすべてにおいて、各実施例が良好な結果を示しているのに対し、各比較例は、少なくともいずれかにおいて、不良な結果となっていることがわかる。
From Table 1, each example shows a good result in all of removability, heat resistance and moisture resistance, whereas each comparative example has a bad result in at least one of them. I understand.
２ 光学部材用粘着層
３ 光学部材用粘着シート
４ 光学部品
５ 光学部材
2 Adhesive layer for
Claims (6)
前記アクリル系ポリマーエマルションの固形分１００重量部に対して、シランカップリング剤０．０１〜１重量部と
を含有することを特徴とする、光学部材用粘着組成物。 An acrylic polymer emulsion obtained by emulsion polymerization of a monomer mixture containing 80% by weight or more of a (meth) acrylic acid ester, a reactive emulsifier containing a radical polymerizable functional group, and an emulsion containing a polymerization initiator;
A pressure-sensitive adhesive composition for an optical member, comprising 0.01 to 1 part by weight of a silane coupling agent with respect to 100 parts by weight of a solid content of the acrylic polymer emulsion.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004014436A JP4481020B2 (en) | 2004-01-22 | 2004-01-22 | Optical member adhesive composition, optical member adhesive layer, optical member adhesive sheet, and optical member |
| KR1020050005460A KR101120295B1 (en) | 2004-01-22 | 2005-01-20 | Adhesive composition for optical members, adhesive layer for optical members, adhesive sheet for optical members, and optical members |
| TW094101763A TWI352728B (en) | 2004-01-22 | 2005-01-21 | Adhesive composition for optical members, adhesive |
| CNB2005100062066A CN100419037C (en) | 2004-01-22 | 2005-01-21 | Adhesive composition, adhesive layer and adhesive sheet for optical element and optical element |
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| JP2004014436A JP4481020B2 (en) | 2004-01-22 | 2004-01-22 | Optical member adhesive composition, optical member adhesive layer, optical member adhesive sheet, and optical member |
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| JP2005206689A JP2005206689A (en) | 2005-08-04 |
| JP4481020B2 true JP4481020B2 (en) | 2010-06-16 |
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| JP2004014436A Expired - Lifetime JP4481020B2 (en) | 2004-01-22 | 2004-01-22 | Optical member adhesive composition, optical member adhesive layer, optical member adhesive sheet, and optical member |
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| JP (1) | JP4481020B2 (en) |
| KR (1) | KR101120295B1 (en) |
| CN (1) | CN100419037C (en) |
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| TWI445785B (en) | 2005-01-26 | 2014-07-21 | Nitto Denko Corp | Adhesive optical film |
| JP5085028B2 (en) * | 2005-10-20 | 2012-11-28 | 日東電工株式会社 | Adhesive optical film and method for producing the same |
| JP4236273B2 (en) * | 2006-03-13 | 2009-03-11 | 日東電工株式会社 | Adhesive optical film and image display device |
| JP4988306B2 (en) * | 2006-11-01 | 2012-08-01 | 日東電工株式会社 | Medical adhesive and medical adhesive tape or sheet |
| JP5250292B2 (en) * | 2007-05-02 | 2013-07-31 | 日東電工株式会社 | Adhesive optical film |
| CN101586010B (en) * | 2008-05-23 | 2011-05-11 | 北京京都大成化工有限公司 | Preparation method of dry composite crylic acid resin aqueous adhesive |
| KR100967637B1 (en) * | 2008-12-03 | 2010-07-07 | (주)베바스토동희 홀딩스 | Variable deflector system assembly of sun-roof for vehicle |
| JP5336323B2 (en) * | 2009-10-23 | 2013-11-06 | 日東電工株式会社 | Adhesive layer for optical film, adhesive optical film, and image display device |
| CN102869739B (en) * | 2010-04-20 | 2014-08-06 | 日东电工株式会社 | Water-dispersible acrylic adhesive agent composition and adhesive sheet |
| JP5917834B2 (en) * | 2010-06-28 | 2016-05-18 | 日東電工株式会社 | Adhesive layer for optical film, adhesive optical film, and image display device |
| JP2012087290A (en) * | 2010-09-21 | 2012-05-10 | Nitto Denko Corp | Self-adhesive layer for optical film and method for producing the same, optical film with self-adhesive layer, and image display |
| JP5617587B2 (en) * | 2010-12-13 | 2014-11-05 | 東洋インキＳｃホールディングス株式会社 | Pressure-sensitive adhesive and laminate using the same |
| KR101240916B1 (en) * | 2011-02-01 | 2013-03-11 | 도레이첨단소재 주식회사 | Adhesive film for reflection sheet and reflection sheet using the same |
| JP5945387B2 (en) | 2011-04-26 | 2016-07-05 | 日東電工株式会社 | Method for producing optical laminate |
| CN104342073A (en) * | 2014-10-31 | 2015-02-11 | 中科院广州化学有限公司 | Organic silicon modified phenyl emulsion pressure-sensitive adhesive with high release force and low residue as well as preparation method thereof and application |
| JP6710560B2 (en) | 2016-03-28 | 2020-06-17 | 日東電工株式会社 | Polarizing film, polarizing film with adhesive layer, method of manufacturing polarizing film, and image display device |
| CN106381103B (en) * | 2016-10-20 | 2018-07-10 | 普为（上海）新材料科技有限公司 | Water polyacrylic acid adhesive and preparation method thereof |
| CN112251172A (en) * | 2020-09-30 | 2021-01-22 | 江苏斯迪克新材料科技股份有限公司 | Optical adhesive layer, method of preparing the same, optical adhesive and flexible display device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05163481A (en) * | 1991-12-16 | 1993-06-29 | Showa Highpolymer Co Ltd | Base emulsion for adhesive |
| JP2002121521A (en) * | 2000-10-13 | 2002-04-26 | Nippon Carbide Ind Co Inc | Pressure-sensitive adhesive composition for polarizing film and polarizing film |
| JP2002249735A (en) * | 2001-02-27 | 2002-09-06 | Kimoto & Co Ltd | Adhesive film |
| JP2003034781A (en) * | 2001-05-15 | 2003-02-07 | Soken Chem & Eng Co Ltd | Pressure sensitive adhesive for optical member and optical member provided with the adhesive |
| JP2003082307A (en) * | 2001-06-25 | 2003-03-19 | Nitto Denko Corp | Aqueous dispersion type acrylic adhesive sheet for repeeling and adhesive composition used for the sheet |
| JP2003335805A (en) * | 2002-05-17 | 2003-11-28 | Showa Highpolymer Co Ltd | Synthetic resin aqueous emulsion-type pressure-sensitive adhesive and process for producing it |
| JP2004263165A (en) * | 2003-02-12 | 2004-09-24 | Nitto Denko Corp | Adhesive composition for optical material, adhesive layer for optical material, adherent type optical material, and image display |
| JP2004323761A (en) * | 2003-04-28 | 2004-11-18 | Nitto Denko Corp | Adhesive agent composition for optical part of water-dispersion type, and optical part with adhesive agent layer |
| JP2005042061A (en) * | 2003-07-25 | 2005-02-17 | Nitto Denko Corp | Adhesive composition for optical member, adhesive layer for optical member, adhesion type optical member, method for producing the same and image-displaying device |
| JP2005043795A (en) * | 2003-07-25 | 2005-02-17 | Nitto Denko Corp | Adhesive composition for optical member, adhesive layer for optical member, adhesive optical member and method for manufacturing the same, and image display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107693C (en) * | 1998-01-13 | 2003-05-07 | 江苏日出(集团)公司 | Polyacrylic water-proof emulsion |
-
2004
- 2004-01-22 JP JP2004014436A patent/JP4481020B2/en not_active Expired - Lifetime
-
2005
- 2005-01-20 KR KR1020050005460A patent/KR101120295B1/en active IP Right Grant
- 2005-01-21 TW TW094101763A patent/TWI352728B/en active
- 2005-01-21 CN CNB2005100062066A patent/CN100419037C/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05163481A (en) * | 1991-12-16 | 1993-06-29 | Showa Highpolymer Co Ltd | Base emulsion for adhesive |
| JP2002121521A (en) * | 2000-10-13 | 2002-04-26 | Nippon Carbide Ind Co Inc | Pressure-sensitive adhesive composition for polarizing film and polarizing film |
| JP2002249735A (en) * | 2001-02-27 | 2002-09-06 | Kimoto & Co Ltd | Adhesive film |
| JP2003034781A (en) * | 2001-05-15 | 2003-02-07 | Soken Chem & Eng Co Ltd | Pressure sensitive adhesive for optical member and optical member provided with the adhesive |
| JP2003082307A (en) * | 2001-06-25 | 2003-03-19 | Nitto Denko Corp | Aqueous dispersion type acrylic adhesive sheet for repeeling and adhesive composition used for the sheet |
| JP2003335805A (en) * | 2002-05-17 | 2003-11-28 | Showa Highpolymer Co Ltd | Synthetic resin aqueous emulsion-type pressure-sensitive adhesive and process for producing it |
| JP2004263165A (en) * | 2003-02-12 | 2004-09-24 | Nitto Denko Corp | Adhesive composition for optical material, adhesive layer for optical material, adherent type optical material, and image display |
| JP2004323761A (en) * | 2003-04-28 | 2004-11-18 | Nitto Denko Corp | Adhesive agent composition for optical part of water-dispersion type, and optical part with adhesive agent layer |
| JP2005042061A (en) * | 2003-07-25 | 2005-02-17 | Nitto Denko Corp | Adhesive composition for optical member, adhesive layer for optical member, adhesion type optical member, method for producing the same and image-displaying device |
| JP2005043795A (en) * | 2003-07-25 | 2005-02-17 | Nitto Denko Corp | Adhesive composition for optical member, adhesive layer for optical member, adhesive optical member and method for manufacturing the same, and image display device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20050076819A (en) | 2005-07-28 |
| TWI352728B (en) | 2011-11-21 |
| JP2005206689A (en) | 2005-08-04 |
| CN100419037C (en) | 2008-09-17 |
| TW200524998A (en) | 2005-08-01 |
| CN1651540A (en) | 2005-08-10 |
| KR101120295B1 (en) | 2012-03-07 |
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