JP4745670B2 - 二液主剤型アクリル系接着剤用b剤 - Google Patents
二液主剤型アクリル系接着剤用b剤 Download PDFInfo
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- JP4745670B2 JP4745670B2 JP2005002561A JP2005002561A JP4745670B2 JP 4745670 B2 JP4745670 B2 JP 4745670B2 JP 2005002561 A JP2005002561 A JP 2005002561A JP 2005002561 A JP2005002561 A JP 2005002561A JP 4745670 B2 JP4745670 B2 JP 4745670B2
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- 239000003795 chemical substances by application Substances 0.000 title claims description 71
- 239000003522 acrylic cement Substances 0.000 title claims description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 21
- 239000000178 monomer Substances 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- UBUCNCOMADRQHX-UHFFFAOYSA-N N-Nitrosodiphenylamine Chemical compound C=1C=CC=CC=1N(N=O)C1=CC=CC=C1 UBUCNCOMADRQHX-UHFFFAOYSA-N 0.000 claims description 11
- 150000003682 vanadium compounds Chemical class 0.000 claims description 11
- IPCRBOOJBPETMF-UHFFFAOYSA-N N-acetylthiourea Chemical compound CC(=O)NC(N)=S IPCRBOOJBPETMF-UHFFFAOYSA-N 0.000 claims description 8
- DQMWMUMCNOJLSI-UHFFFAOYSA-N n-carbamothioylbenzamide Chemical compound NC(=S)NC(=O)C1=CC=CC=C1 DQMWMUMCNOJLSI-UHFFFAOYSA-N 0.000 claims description 8
- PDQAZBWRQCGBEV-UHFFFAOYSA-N Ethylenethiourea Chemical compound S=C1NCCN1 PDQAZBWRQCGBEV-UHFFFAOYSA-N 0.000 claims description 7
- 150000002432 hydroperoxides Chemical class 0.000 claims description 4
- 150000003585 thioureas Chemical class 0.000 claims description 4
- 238000003860 storage Methods 0.000 description 21
- -1 acryl Chemical group 0.000 description 17
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 14
- 239000007788 liquid Substances 0.000 description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 8
- 150000001451 organic peroxides Chemical class 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 238000001879 gelation Methods 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 239000003381 stabilizer Substances 0.000 description 5
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 4
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 4
- 239000005062 Polybutadiene Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920002857 polybutadiene Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- FSJSYDFBTIVUFD-SUKNRPLKSA-N (z)-4-hydroxypent-3-en-2-one;oxovanadium Chemical compound [V]=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O FSJSYDFBTIVUFD-SUKNRPLKSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 3
- 239000010960 cold rolled steel Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- 229940005561 1,4-benzoquinone Drugs 0.000 description 2
- LAQYHRQFABOIFD-UHFFFAOYSA-N 2-methoxyhydroquinone Chemical compound COC1=CC(O)=CC=C1O LAQYHRQFABOIFD-UHFFFAOYSA-N 0.000 description 2
- SEILKFZTLVMHRR-UHFFFAOYSA-N 2-phosphonooxyethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOP(O)(O)=O SEILKFZTLVMHRR-UHFFFAOYSA-N 0.000 description 2
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 229920009204 Methacrylate-butadiene-styrene Polymers 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 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 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 229920003049 isoprene rubber Polymers 0.000 description 2
- 239000002075 main ingredient Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 238000007717 redox polymerization reaction Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000013008 thixotropic agent Substances 0.000 description 2
- CNHDIAIOKMXOLK-UHFFFAOYSA-N toluquinol Chemical compound CC1=CC(O)=CC=C1O CNHDIAIOKMXOLK-UHFFFAOYSA-N 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 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 1
- FMZUHGYZWYNSOA-VVBFYGJXSA-N (1r)-1-[(4r,4ar,8as)-2,6-diphenyl-4,4a,8,8a-tetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol Chemical compound C([C@@H]1OC(O[C@@H]([C@@H]1O1)[C@H](O)CO)C=2C=CC=CC=2)OC1C1=CC=CC=C1 FMZUHGYZWYNSOA-VVBFYGJXSA-N 0.000 description 1
- MFWFDRBPQDXFRC-LNTINUHCSA-N (z)-4-hydroxypent-3-en-2-one;vanadium Chemical compound [V].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O MFWFDRBPQDXFRC-LNTINUHCSA-N 0.000 description 1
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 1
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 description 1
- YXAOOTNFFAQIPZ-UHFFFAOYSA-N 1-nitrosonaphthalen-2-ol Chemical compound C1=CC=CC2=C(N=O)C(O)=CC=C21 YXAOOTNFFAQIPZ-UHFFFAOYSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- GBHCABUWWQUMAJ-UHFFFAOYSA-N 2-hydrazinoethanol Chemical compound NNCCO GBHCABUWWQUMAJ-UHFFFAOYSA-N 0.000 description 1
- CEXQWAAGPPNOQF-UHFFFAOYSA-N 2-phenoxyethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOC1=CC=CC=C1 CEXQWAAGPPNOQF-UHFFFAOYSA-N 0.000 description 1
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-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
- FXJVNINSOKCNJP-UHFFFAOYSA-M 4-methylbenzenesulfinate Chemical compound CC1=CC=C(S([O-])=O)C=C1 FXJVNINSOKCNJP-UHFFFAOYSA-M 0.000 description 1
- JSTCPNFNKICNNO-UHFFFAOYSA-N 4-nitrosophenol Chemical compound OC1=CC=C(N=O)C=C1 JSTCPNFNKICNNO-UHFFFAOYSA-N 0.000 description 1
- AFHIIJICYLMCSH-VOTSOKGWSA-N 5-amino-2-[(e)-2-(4-benzamido-2-sulfophenyl)ethenyl]benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC(N)=CC=C1\C=C\C(C(=C1)S(O)(=O)=O)=CC=C1NC(=O)C1=CC=CC=C1 AFHIIJICYLMCSH-VOTSOKGWSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000002211 L-ascorbic acid Substances 0.000 description 1
- 235000000069 L-ascorbic acid Nutrition 0.000 description 1
- VLCDUOXHFNUCKK-UHFFFAOYSA-N N,N'-Dimethylthiourea Chemical compound CNC(=S)NC VLCDUOXHFNUCKK-UHFFFAOYSA-N 0.000 description 1
- OKIZCWYLBDKLSU-UHFFFAOYSA-M N,N,N-Trimethylmethanaminium chloride Chemical compound [Cl-].C[N+](C)(C)C OKIZCWYLBDKLSU-UHFFFAOYSA-M 0.000 description 1
- 229930192627 Naphthoquinone Natural products 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- MNOILHPDHOHILI-UHFFFAOYSA-N Tetramethylthiourea Chemical compound CN(C)C(=S)N(C)C MNOILHPDHOHILI-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
- 229920000800 acrylic rubber Polymers 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920001893 acrylonitrile styrene Polymers 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- GXCSNALCLRPEAS-CFYXSCKTSA-N azane (Z)-hydroxyimino-oxido-phenylazanium Chemical compound N.O\N=[N+](/[O-])c1ccccc1 GXCSNALCLRPEAS-CFYXSCKTSA-N 0.000 description 1
- 235000013871 bee wax Nutrition 0.000 description 1
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- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- WARCRYXKINZHGQ-UHFFFAOYSA-N benzohydrazide Chemical compound NNC(=O)C1=CC=CC=C1 WARCRYXKINZHGQ-UHFFFAOYSA-N 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- KXHPPCXNWTUNSB-UHFFFAOYSA-M benzyl(trimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CC1=CC=CC=C1 KXHPPCXNWTUNSB-UHFFFAOYSA-M 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical class C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 229920005558 epichlorohydrin rubber Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000005448 ethoxyethyl group Chemical group [H]C([H])([H])C([H])([H])OC([H])([H])C([H])([H])* 0.000 description 1
- 229920006229 ethylene acrylic elastomer Polymers 0.000 description 1
- WHRIKZCFRVTHJH-UHFFFAOYSA-N ethylhydrazine Chemical compound CCNN WHRIKZCFRVTHJH-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002429 hydrazines Chemical group 0.000 description 1
- NWVVVBRKAWDGAB-UHFFFAOYSA-N hydroquinone methyl ether Natural products COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- MAXCWSIJKVASQC-UHFFFAOYSA-N n-methyl-n-phenylnitrous amide Chemical compound O=NN(C)C1=CC=CC=C1 MAXCWSIJKVASQC-UHFFFAOYSA-N 0.000 description 1
- 150000002791 naphthoquinones Chemical class 0.000 description 1
- 150000002832 nitroso derivatives Chemical class 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- DOIRQSBPFJWKBE-UHFFFAOYSA-N phthalic acid di-n-butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
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- NJRXVEJTAYWCQJ-UHFFFAOYSA-N thiomalic acid Chemical group OC(=O)CC(S)C(O)=O NJRXVEJTAYWCQJ-UHFFFAOYSA-N 0.000 description 1
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- 229940103494 thiosalicylic acid Drugs 0.000 description 1
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Description
原賀et al、日本接着協会誌 vol24 No.12
即ち,本発明は、
(メタ)アクリル系モノマーと、有機ハイドロパ−オキサイドを必須成分とするA剤とともに用いられる2液主剤型アクリル系接着剤のB剤であって、(メタ)アクリル系モノマー100重量部、バナジウム化合物0.01〜10重量部、アセチルチオ尿素、エチレンチオ尿素、ベンゾイルチオ尿素から選ばれる1種以上のチオ尿素系化合物0.05〜5重量部、及びN−ニトロソジフェニルアミン0.01〜2重量部を必須成分とすることを特徴とする二液主剤型アクリル系接着剤用B剤に関するものである。
本発明の二液主剤型アクリル系接着剤用B剤(以下単に、B剤と称することがある。)は、(メタ)アクリル系モノマーと、有機ハイドロパ−オキサイドを必須成分とするA剤とともに用いられる。そして本発明のB剤は、(メタ)アクリル系モノマー100重量部、バナジウム化合物0.01〜10重量部、チオ尿素又はその誘導体の1種以上0.05〜5重量部、及びN−ニトロソジフェニルアミン0.01〜2重量部を必須成分とする。
本発明においてB剤に用いられる(メタ)アクリル系モノマーとしては、(メタ)アクリル酸、(メタ)アクリル酸アルキルエステル、フェノキシエチル(メタ)アクリレート、メトキシエチル(メタ)アクリレート、エトキシエチル(メタ)アクリレート、シクロヘキシル(メタ)アクリレート、テトラヒドロフルフリル(メタ)アクリレート、イソボルニル(メタ)アクリレート、ベンジル(メタ)アクリレート、(メタ)アクリル酸ヒドロキシアルキルエステル、多価アルコールのポリ(メタ)アクリレート、エポキシ樹脂に(メタ)アクリル酸を付加反応させて得られるエポキシ(メタ)アクリレート、ウレタン(メタ)アクリレート、ポリエステル(メタ)アクリレート、ビスフェノールAのアルキレンオキサイド付加物のジ(メタ)アクリレート等が挙げられ、これらのなかで、(メタ)アクリル酸のようにカルボキシル基を有する(メタ)アクリル系モノマーや、(メタ)アクリル酸ヒドロキシアルキルエステル等の水酸基を有する(メタ)アクリル系モノマーを適宜併用すると、硬化物に良好な機械的強度と接着性を付与でき好ましい。これらは単独或いは2種以上組み合わされて用いられる。
また、以下の実施例、比較例において保存安定性、ゲル化時間、セットタイム及び接着強度(引張剪断強度、剥離強度)は以下の条件で測定を行った。
<保存安定性>
B剤を内径16mm、全長180mmのガラス試験管に30g入れ、80℃に保たれた乾燥機中に保管し、ゲルを生じるまでの時間を測定する。ゲル生成時間が30時間以上であれば23℃以下の室温下では半年以上安定である。
<ゲル化時間>
23℃でA剤、B剤を0.5gづつ混合し、反応の進行に伴ってゲルが生成する時間を測定する。
<セットタイム>
23℃及び5℃で、1.6×25×100mmの形状の冷間圧延鋼板を12mmのラップでA剤、B剤を等量混合して接着し、5Kgfの荷重をかけても剥がれなくなるまでの時間を測定する。
<接着強度>
23℃で、一方の被着体にA剤、B剤の等量を塗布し、その後、もう一方の被着体を擦り合わせるようにして貼り合わせて固定し、24時間後に同条件下で次に示す諸強度を測定する。
〔引張剪断強度〕
1.6×25×100mmの形状の冷間圧延鋼板を12mmのラップで接着し、ASTM D 1002−64に準拠して測定。
〔剥離強度〕
0.6×25×200mmの形状の冷間圧延鋼板を接着し、ASTM D 1876−72に準拠して測定。
ヒドロキシプロピルメタクリレ−ト40部、フェノキシエチルメタクリレ−ト45部、2,2−ビス〔4−(メタクリロキシ・ジエトキシ)フェニル〕プロパン(新中村化学工業(株)製 NKエステルBPE100)15部及びMBS樹脂(呉羽化学工業(株)製クレハBTA751)40部を均一に分散して得られたベース液140部にクメンハイドロパーオキサイド5部、モノメタクリロイルオキシエチルホスフェート(共栄社化学(株)製ライトエステルPM)0.1部及び1,4−ベンゾキノン0.15部を加えてA剤を調製した。
A剤と同じベース液140部に表1に示す還元剤、安定剤等の添加剤を所定量加えたB剤8種類(B−1〜B−8)を調製し、保存安定性とA剤と組み合わせてゲル化時間を測定した。その結果を表1に示す。バナジウム化合物のバナジルアセチルアセトネート(VOAA2)と併用したチオ尿素系化合物としてベンゾイルチオ尿素(BTU)を用いた組成で比較するとN−ニトロソジフェニルアミン(NDA)を配合した実施例1(B−1)は安定剤を加えない比較例1(B−4)、及び従来から公知の安定剤を加えた比較例2(B−5)と比較例3(B−6)に比べて安定性が著しく向上している。また、アセチルチオ尿素(ATU)を用いた実施例2(B−2)、及びエチレンチオ尿素(ETU)を用いた実施例3(B−3)も安定性が良好である。さらに、還元剤としてバナジルアセチルアセトネート(VOAA2)のみを用いた比較例4(B−7)、及びベンゾイルチオ尿素のみを用いた比較例5(B−8)も保存安定性は良好である。一方、ゲル化時間については実施例1〜3(B−1〜B−3)は比較例4、5(B−7、B−8)に比べて著しく短縮されている。また、実施例1(B−1)は安定剤を加えていない比較例1(B−4)と同じで、比較例2、3(B−5、B−6)に比べてより速い。
1)バナジルアセチルアセトネート
2)ベンゾイルチオ尿素
3)アセチルチオ尿素
4)エチレンチオ尿素
5)共栄社化学(株)製モノメタクリロイルオキシエチルホスフェート
6)N−ニトロソジフェニルアミン
7)ハイドロキノン
8)1.4−ベンゾキノン
実施例1で用いたN−ニトロソジフェニルアミン(NDA)の代わりに他のニトロソ化合物を安定剤として用いたB剤4種類(B−9〜B−12)を調製し、保存安定性とA剤と組み合わせてゲル化時間を測定した。その結果を表2に示す。ゲル化時間は比較例6〜8は実施例1と同等であるが、保存安定性はいずれも実施例1よりも劣っている。
Claims (1)
- (メタ)アクリル系モノマーと、有機ハイドロパ−オキサイドを必須成分とするA剤とともに用いられる2液主剤型アクリル系接着剤のB剤であって、(メタ)アクリル系モノマー100重量部、バナジウム化合物0.01〜10重量部、アセチルチオ尿素、エチレンチオ尿素、ベンゾイルチオ尿素から選ばれる1種以上のチオ尿素系化合物0.05〜5重量部、及びN−ニトロソジフェニルアミン0.01〜2重量部を必須成分とすることを特徴とする二液主剤型アクリル系接着剤用B剤。
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