JP5227495B2 - 粘着シート - Google Patents
粘着シート Download PDFInfo
- Publication number
- JP5227495B2 JP5227495B2 JP2005282369A JP2005282369A JP5227495B2 JP 5227495 B2 JP5227495 B2 JP 5227495B2 JP 2005282369 A JP2005282369 A JP 2005282369A JP 2005282369 A JP2005282369 A JP 2005282369A JP 5227495 B2 JP5227495 B2 JP 5227495B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- sensitive adhesive
- adhesive layer
- adherend
- adhesive sheet
- 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.)
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- 239000000853 adhesive Substances 0.000 title claims description 65
- 230000001070 adhesive effect Effects 0.000 title claims description 65
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 133
- 239000010410 layer Substances 0.000 claims description 77
- 229920000103 Expandable microsphere Polymers 0.000 claims description 45
- 239000003431 cross linking reagent Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 23
- 229920005989 resin Polymers 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 15
- 239000003522 acrylic cement Substances 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 description 24
- 239000002245 particle Substances 0.000 description 22
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 21
- -1 polyethylene terephthalate Polymers 0.000 description 19
- 238000012545 processing Methods 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- 239000000178 monomer Substances 0.000 description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 12
- 125000000524 functional group Chemical group 0.000 description 12
- 239000000243 solution Substances 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000004593 Epoxy Substances 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000004005 microsphere Substances 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 230000009477 glass transition Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- KQSMCAVKSJWMSI-UHFFFAOYSA-N 2,4-dimethyl-1-n,1-n,3-n,3-n-tetrakis(oxiran-2-ylmethyl)benzene-1,3-diamine Chemical compound CC1=C(N(CC2OC2)CC2OC2)C(C)=CC=C1N(CC1OC1)CC1CO1 KQSMCAVKSJWMSI-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
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- 238000011109 contamination Methods 0.000 description 5
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- 238000004132 cross linking Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229920002799 BoPET Polymers 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 150000003505 terpenes Chemical class 0.000 description 4
- 235000007586 terpenes Nutrition 0.000 description 4
- 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 3
- 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 3
- 239000003985 ceramic capacitor Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 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 3
- GRWFGVWFFZKLTI-IUCAKERBSA-N (-)-α-pinene Chemical compound CC1=CC[C@@H]2C(C)(C)[C@H]1C2 GRWFGVWFFZKLTI-IUCAKERBSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- XMGQYMWWDOXHJM-UHFFFAOYSA-N limonene Chemical compound CC(=C)C1CCC(C)=CC1 XMGQYMWWDOXHJM-UHFFFAOYSA-N 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- WTARULDDTDQWMU-RKDXNWHRSA-N (+)-β-pinene Chemical compound C1[C@H]2C(C)(C)[C@@H]1CCC2=C WTARULDDTDQWMU-RKDXNWHRSA-N 0.000 description 1
- WTARULDDTDQWMU-IUCAKERBSA-N (-)-Nopinene Natural products C1[C@@H]2C(C)(C)[C@H]1CCC2=C WTARULDDTDQWMU-IUCAKERBSA-N 0.000 description 1
- 229920002818 (Hydroxyethyl)methacrylate Polymers 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
- KPAPHODVWOVUJL-UHFFFAOYSA-N 1-benzofuran;1h-indene Chemical compound C1=CC=C2CC=CC2=C1.C1=CC=C2OC=CC2=C1 KPAPHODVWOVUJL-UHFFFAOYSA-N 0.000 description 1
- ZUQABTLQDXJZFK-UHFFFAOYSA-N 10-hydroxydecyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCCCCCCCO ZUQABTLQDXJZFK-UHFFFAOYSA-N 0.000 description 1
- IQEWHTMQTSAPLG-UHFFFAOYSA-N 10-hydroxydecyl prop-2-enoate Chemical compound OCCCCCCCCCCOC(=O)C=C IQEWHTMQTSAPLG-UHFFFAOYSA-N 0.000 description 1
- AEZJNQZYZFLLIY-UHFFFAOYSA-N 12-hydroxydodecyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCCCCCCCCCO AEZJNQZYZFLLIY-UHFFFAOYSA-N 0.000 description 1
- NKYRAXWYDRHWOG-UHFFFAOYSA-N 12-hydroxydodecyl prop-2-enoate Chemical compound OCCCCCCCCCCCCOC(=O)C=C NKYRAXWYDRHWOG-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-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
- NPSJHQMIVNJLNN-UHFFFAOYSA-N 2-ethylhexyl 4-nitrobenzoate Chemical compound CCCCC(CC)COC(=O)C1=CC=C([N+]([O-])=O)C=C1 NPSJHQMIVNJLNN-UHFFFAOYSA-N 0.000 description 1
- 239000004808 2-ethylhexylester Substances 0.000 description 1
- IEVADDDOVGMCSI-UHFFFAOYSA-N 2-hydroxybutyl 2-methylprop-2-enoate Chemical compound CCC(O)COC(=O)C(C)=C IEVADDDOVGMCSI-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
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 description 1
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-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
- CYUZOYPRAQASLN-UHFFFAOYSA-N 3-prop-2-enoyloxypropanoic acid Chemical compound OC(=O)CCOC(=O)C=C CYUZOYPRAQASLN-UHFFFAOYSA-N 0.000 description 1
- NDWUBGAGUCISDV-UHFFFAOYSA-N 4-hydroxybutyl prop-2-enoate Chemical compound OCCCCOC(=O)C=C NDWUBGAGUCISDV-UHFFFAOYSA-N 0.000 description 1
- ORTNTAAZJSNACP-UHFFFAOYSA-N 6-(oxiran-2-ylmethoxy)hexan-1-ol Chemical compound OCCCCCCOCC1CO1 ORTNTAAZJSNACP-UHFFFAOYSA-N 0.000 description 1
- XFOFBPRPOAWWPA-UHFFFAOYSA-N 6-hydroxyhexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCCCO XFOFBPRPOAWWPA-UHFFFAOYSA-N 0.000 description 1
- OCIFJWVZZUDMRL-UHFFFAOYSA-N 6-hydroxyhexyl prop-2-enoate Chemical compound OCCCCCCOC(=O)C=C OCIFJWVZZUDMRL-UHFFFAOYSA-N 0.000 description 1
- JSZCJJRQCFZXCI-UHFFFAOYSA-N 6-prop-2-enoyloxyhexanoic acid Chemical compound OC(=O)CCCCCOC(=O)C=C JSZCJJRQCFZXCI-UHFFFAOYSA-N 0.000 description 1
- YPMOAQISONSSNL-UHFFFAOYSA-N 8-hydroxyoctyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCCCCCO YPMOAQISONSSNL-UHFFFAOYSA-N 0.000 description 1
- JSCDRVVVGGYHSN-UHFFFAOYSA-N 8-hydroxyoctyl prop-2-enoate Chemical compound OCCCCCCCCOC(=O)C=C JSCDRVVVGGYHSN-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
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- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
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- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- QOSMNYMQXIVWKY-UHFFFAOYSA-N Propyl levulinate Chemical compound CCCOC(=O)CCC(C)=O QOSMNYMQXIVWKY-UHFFFAOYSA-N 0.000 description 1
- WTARULDDTDQWMU-UHFFFAOYSA-N Pseudopinene Natural products C1C2C(C)(C)C1CCC2=C WTARULDDTDQWMU-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 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 1
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- 150000007513 acids Chemical class 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- XCPQUQHBVVXMRQ-UHFFFAOYSA-N alpha-Fenchene Natural products C1CC2C(=C)CC1C2(C)C XCPQUQHBVVXMRQ-UHFFFAOYSA-N 0.000 description 1
- MVNCAPSFBDBCGF-UHFFFAOYSA-N alpha-pinene Natural products CC1=CCC23C1CC2C3(C)C MVNCAPSFBDBCGF-UHFFFAOYSA-N 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229930006722 beta-pinene Natural products 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 238000001816 cooling Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- 238000010894 electron beam technology Methods 0.000 description 1
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- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 235000021588 free fatty acids Nutrition 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- LCWMKIHBLJLORW-UHFFFAOYSA-N gamma-carene Natural products C1CC(=C)CC2C(C)(C)C21 LCWMKIHBLJLORW-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
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- 239000012943 hotmelt Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
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- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- 150000004702 methyl esters Chemical class 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
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- JAYXSROKFZAHRQ-UHFFFAOYSA-N n,n-bis(oxiran-2-ylmethyl)aniline Chemical compound C1OC1CN(C=1C=CC=CC=1)CC1CO1 JAYXSROKFZAHRQ-UHFFFAOYSA-N 0.000 description 1
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- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
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- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920006290 polyethylene naphthalate film Polymers 0.000 description 1
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- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- GRWFGVWFFZKLTI-UHFFFAOYSA-N rac-alpha-Pinene Natural products CC1=CCC2C(C)(C)C1C2 GRWFGVWFFZKLTI-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
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- 238000007873 sieving Methods 0.000 description 1
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- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
[剥離試験]:SUS304板をJIS K 0237に従って処理して得られた被着体の表面に、23℃、65%RHの条件下、20mm幅の粘着シートを貼付し、0.5時間放置した後、23℃、65%RHの条件下、180°剥離力を測定し、測定された180°剥離力の値を、25mm幅の粘着シートを用いた場合の値(N/25mm)に換算する。
A(酸価)=B×F×5.611/S (1)
(B:測定に用いた0.1mol/l水酸化カリウムのエタノール溶液の量(ml)、F:0.1mol/l水酸化カリウムのエタノール溶液のファクター、S:試料の質量(g)、5.611:水酸化カリウムの式量(56.11×1/10))
○:基材と粘着剤層とが密着しており、被着体に粘着剤層の付着が認められない。
×:基材と粘着剤層との界面で剥離が認められる。
熱膨張性微小球(松本油脂製薬社製、商品名「マイクロスフェアF50D」、平均粒径:15μm)6質量部、アクリル系粘着剤(アクリル酸−アクリル酸ブチル共重合体、質量平均分子量:51万、ガラス転移温度:−32℃、酸価:46)27質量部、テルペンフェノール系粘着付与樹脂(軟化点:150℃)5質量部、エポキシ系架橋剤(N,N,N’,N’−テトラグリシジル−m−キシレンジアミン)0.15質量部、及びトルエン61.85質量部を均一に混合、溶解し、粘着剤層形成塗工液を調製した。この粘着剤層形成塗工液を、厚さ100μmのポリエチレンテレフタレートシート上にベーカー式アプリケーターにて塗布し、80℃にて十分乾燥することにより、厚さ50μmの粘着剤層を有する再剥離性の粘着シートを作製した。この粘着シートの物性値の測定結果、及び各種特性の評価結果を表1に示す。
熱膨張性微小球として、平均粒径8μmの熱膨張性微小球(松本油脂製薬社製、商品名「マイクロスフェアF80GSD」)2質量部と、前述の実施例1で使用した平均粒径15μmの熱膨張性微小球4質量部とを混合したものを用いたこと以外は、前述の実施例1と同様にして粘着シートを作製した。この粘着シートの物性値の測定結果、及び各種特性の評価結果を表1に示す。
熱膨張性微小球(松本油脂製薬社製、商品名「マイクロスフェアF50D」、平均粒径:15μm)5質量部、熱膨張性微小球(松本油脂製薬社製、商品名「マイクロスフェアF80GS」、平均粒径:8μm)2.5質量部、アクリル系粘着剤(アクリル酸ブチル−アクリル酸2−エチルヘキシル共重合体、質量平均分子量:48万、ガラス転移温度:−35℃、酸価:21)33質量部、テルペンフェノール系粘着付与樹脂(軟化点:125℃)10質量部、エポキシ系架橋剤(N,N,N’,N’−テトラグリシジル−m−キシレンジアミン)0.18質量部、及びトルエン49.32質量部を均一に混合、溶解し、粘着剤層形成塗工液を調製した。この粘着剤層形成塗工液を用いたこと以外は、前述の実施例1と同様にして粘着シートを作製した。この粘着シートの物性値の測定結果、及び各種特性の評価結果を表1に示す。
熱膨張性微小球(松本油脂製薬社製、商品名「マイクロスフェアF50D」、平均粒径:15μm)5質量部、熱膨張性微小球(松本油脂製薬社製、商品名「マイクロスフェアF80GS」、平均粒径:8μm)2.5質量部、アクリル系粘着剤(アクリル酸ブチル−アクリル酸2−エチルヘキシル共重合体、質量平均分子量:81万、ガラス転移温度:−64℃、酸価:23)25質量部、テルペンフェノール系粘着付与樹脂(軟化点:125℃)15質量部、エポキシ系架橋剤(N,N,N’,N’−テトラグリシジル−m−キシレンジアミン)0.11質量部、及びトルエン52.39質量部を均一に混合、溶解し、粘着剤層形成塗工液を調製した。この粘着剤層形成塗工液を用いたこと以外は、前述の実施例1と同様にして粘着シートを作製した。この粘着シートの物性値の測定結果、及び各種特性の評価結果を表1に示す。
Claims (2)
- フィルム状又はシート状の基材と、前記基材の少なくとも一方の面上に配設される、熱膨張性微小球を含有する粘着剤層と、を備えた粘着シートであって、
前記粘着剤層の20℃における弾性率が、1.0×104Pa以上、1.0×106Pa未満であり、
前記粘着剤層が、
前記熱膨張性微小球、酸価が30以上かつ重量平均分子量が20万〜100万のアクリル系粘着剤、前記アクリル系粘着剤と反応し得る架橋剤、及び軟化点が120℃以上の粘着付与樹脂を含有する粘着剤組成物が、前記基材の少なくとも一方の面上に層状に塗布されて形成されたものであり、
前記粘着剤組成物に含有される前記架橋剤の割合が、前記アクリル系粘着剤に対する割合で、0.001〜0.3当量である粘着シート。 - 下記剥離試験により測定される初期剥離力が、5N/25mm以上である請求項1に記載の粘着シート。
[剥離試験]:SUS304板をJIS K 0237に従って処理して得られた被着体の表面に、23℃、65%RHの条件下、20mm幅の粘着シートを貼付し、0.5時間放置した後、23℃、65%RHの条件下、180°剥離力を測定し、測定された180°剥離力の値を、25mm幅の粘着シートを用いた場合の値(N/25mm)に換算する。
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