JP4220158B2 - Curable composition - Google Patents
Curable composition Download PDFInfo
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- JP4220158B2 JP4220158B2 JP2002009963A JP2002009963A JP4220158B2 JP 4220158 B2 JP4220158 B2 JP 4220158B2 JP 2002009963 A JP2002009963 A JP 2002009963A JP 2002009963 A JP2002009963 A JP 2002009963A JP 4220158 B2 JP4220158 B2 JP 4220158B2
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- JP
- Japan
- Prior art keywords
- weight
- parts
- group
- acid
- salt
- 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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- 239000000203 mixture Substances 0.000 title claims description 30
- -1 Ketimine compound Chemical class 0.000 claims description 45
- 229920000642 polymer Polymers 0.000 claims description 39
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 30
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 27
- 239000003054 catalyst Substances 0.000 claims description 24
- 150000003839 salts Chemical class 0.000 claims description 23
- 239000003822 epoxy resin Substances 0.000 claims description 22
- 229920000647 polyepoxide Polymers 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 15
- 125000004432 carbon atom Chemical group C* 0.000 claims description 15
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 11
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 11
- 239000000194 fatty acid Substances 0.000 claims description 11
- 229930195729 fatty acid Natural products 0.000 claims description 11
- 150000004665 fatty acids Chemical class 0.000 claims description 11
- 239000003921 oil Substances 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 10
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 10
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 claims description 10
- 125000003118 aryl group Chemical group 0.000 claims description 8
- 229920001451 polypropylene glycol Polymers 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 239000003566 sealing material Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 239000003981 vehicle Substances 0.000 description 10
- 239000004593 Epoxy Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000004014 plasticizer Substances 0.000 description 9
- 150000004756 silanes Chemical class 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- 235000019198 oils Nutrition 0.000 description 8
- 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 7
- 229920000768 polyamine Polymers 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 239000006087 Silane Coupling Agent Substances 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 150000002430 hydrocarbons Chemical group 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 5
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000007795 chemical reaction product Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 5
- 239000012948 isocyanate Substances 0.000 description 5
- 239000013008 thixotropic agent Substances 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 125000003277 amino group Chemical group 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 125000002723 alicyclic group Chemical group 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 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 3
- 239000003999 initiator Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 2
- HXVNBWAKAOHACI-UHFFFAOYSA-N 2,4-dimethyl-3-pentanone Chemical compound CC(C)C(=O)C(C)C HXVNBWAKAOHACI-UHFFFAOYSA-N 0.000 description 2
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 2
- SYBYTAAJFKOIEJ-UHFFFAOYSA-N 3-Methylbutan-2-one Chemical compound CC(C)C(C)=O SYBYTAAJFKOIEJ-UHFFFAOYSA-N 0.000 description 2
- ZYAASQNKCWTPKI-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propan-1-amine Chemical compound CO[Si](C)(OC)CCCN ZYAASQNKCWTPKI-UHFFFAOYSA-N 0.000 description 2
- ZOTKGMAKADCEDH-UHFFFAOYSA-N 5-triethoxysilylpentane-1,3-diamine Chemical compound CCO[Si](OCC)(OCC)CCC(N)CCN ZOTKGMAKADCEDH-UHFFFAOYSA-N 0.000 description 2
- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-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
- 229910002621 H2PtCl6 Inorganic materials 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229920001944 Plastisol Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 230000001588 bifunctional effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 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
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- JGFBRKRYDCGYKD-UHFFFAOYSA-N dibutyl(oxo)tin Chemical compound CCCC[Sn](=O)CCCC JGFBRKRYDCGYKD-UHFFFAOYSA-N 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- ZQPPMHVWECSIRJ-MDZDMXLPSA-N elaidic acid Chemical compound CCCCCCCC\C=C\CCCCCCCC(O)=O ZQPPMHVWECSIRJ-MDZDMXLPSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 125000000962 organic group Chemical group 0.000 description 2
- 125000005702 oxyalkylene group Chemical group 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 150000003014 phosphoric acid esters Chemical class 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 239000004999 plastisol Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 150000007519 polyprotic acids Polymers 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 235000003441 saturated fatty acids Nutrition 0.000 description 2
- 239000012945 sealing adhesive Substances 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 125000003396 thiol group Chemical group [H]S* 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- NIDNOXCRFUCAKQ-UMRXKNAASA-N (1s,2r,3s,4r)-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1[C@H]2C=C[C@@H]1[C@H](C(=O)O)[C@@H]2C(O)=O NIDNOXCRFUCAKQ-UMRXKNAASA-N 0.000 description 1
- LTVUCOSIZFEASK-MPXCPUAZSA-N (3ar,4s,7r,7as)-3a-methyl-3a,4,7,7a-tetrahydro-4,7-methano-2-benzofuran-1,3-dione Chemical compound C([C@H]1C=C2)[C@H]2[C@H]2[C@]1(C)C(=O)OC2=O LTVUCOSIZFEASK-MPXCPUAZSA-N 0.000 description 1
- MUTGBJKUEZFXGO-OLQVQODUSA-N (3as,7ar)-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1CCC[C@@H]2C(=O)OC(=O)[C@@H]21 MUTGBJKUEZFXGO-OLQVQODUSA-N 0.000 description 1
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 description 1
- CFQZKFWQLAHGSL-FNTYJUCDSA-N (3e,5e,7e,9e,11e,13e,15e,17e)-18-[(3e,5e,7e,9e,11e,13e,15e,17e)-18-[(3e,5e,7e,9e,11e,13e,15e)-octadeca-3,5,7,9,11,13,15,17-octaenoyl]oxyoctadeca-3,5,7,9,11,13,15,17-octaenoyl]oxyoctadeca-3,5,7,9,11,13,15,17-octaenoic acid Chemical compound OC(=O)C\C=C\C=C\C=C\C=C\C=C\C=C\C=C\C=C\OC(=O)C\C=C\C=C\C=C\C=C\C=C\C=C\C=C\C=C\OC(=O)C\C=C\C=C\C=C\C=C\C=C\C=C\C=C\C=C CFQZKFWQLAHGSL-FNTYJUCDSA-N 0.000 description 1
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
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- 229910052759 nickel Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
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- 229910052763 palladium Inorganic materials 0.000 description 1
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 1
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- HKJYVRJHDIPMQB-UHFFFAOYSA-N propan-1-olate;titanium(4+) Chemical compound CCCO[Ti](OCCC)(OCCC)OCCC HKJYVRJHDIPMQB-UHFFFAOYSA-N 0.000 description 1
- BPJZKLBPJBMLQG-KWRJMZDGSA-N propanoyl (z,12r)-12-hydroxyoctadec-9-enoate Chemical compound CCCCCC[C@@H](O)C\C=C/CCCCCCCC(=O)OC(=O)CC BPJZKLBPJBMLQG-KWRJMZDGSA-N 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
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- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
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- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical class [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
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- ACECBHHKGNTVPB-UHFFFAOYSA-N silylformic acid Chemical class OC([SiH3])=O ACECBHHKGNTVPB-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
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- 239000003381 stabilizer Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 description 1
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- 230000009974 thixotropic effect Effects 0.000 description 1
- 239000012974 tin catalyst Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- FRGPKMWIYVTFIQ-UHFFFAOYSA-N triethoxy(3-isocyanatopropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCCN=C=O FRGPKMWIYVTFIQ-UHFFFAOYSA-N 0.000 description 1
- UDUKMRHNZZLJRB-UHFFFAOYSA-N triethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical group C1C(CC[Si](OCC)(OCC)OCC)CCC2OC21 UDUKMRHNZZLJRB-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-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
- PZJJKWKADRNWSW-UHFFFAOYSA-N trimethoxysilicon Chemical group CO[Si](OC)OC PZJJKWKADRNWSW-UHFFFAOYSA-N 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 235000020234 walnut Nutrition 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- UMVAHUBFIVIZAX-UHFFFAOYSA-N zinc cobalt(2+) 1,2-dimethoxyethane tetracyanide Chemical compound C(OC)COC.[C-]#N.[Zn+2].[Co+2].[C-]#N.[C-]#N.[C-]#N UMVAHUBFIVIZAX-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Epoxy Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Sealing Material Composition (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は、塩化ビニル樹脂を含むことなく、作業性が良好であり、かつ油面鋼板および電着鋼板への接着性に優れた車両用途に好適な硬化性組成物に関する。
【0002】
【従来の技術】
塩化ビニル系プラスチゾル組成物は、建築用の壁紙や床材、および車両用のアンダーボディーコーティング材やシーリング材等に幅広く使用されている。しかし、近年、環境問題やリサイクル問題等により、燃焼時に有害物質の発生がより少ない代替品が望まれるようになっている。こうしたことに鑑み、特開平4−154876号公報、特開平5−32934号公報、特開平5−86325号公報、または特開2001−11383号公報においては、反応性ケイ素基含有オキシアルキレン系重合体を使用した組成物による塩化ビニル系プラスチゾル組成物の代替が提案されており、該重合体を車両用に使用した場合には、常温硬化性でかつ防錆性、防振性が得られることが開示されている。
【0003】
しかしながら、特開平3−140321号公報や特開平5−70651号公報等に記載されるように、車両用途では電着鋼板への接着性以外に防錆油の付着した油面鋼板への接着性が要求されることがあるが、上記反応性ケイ素基含有オキシアルキレン系重合体を使用した組成物では、特に後者に対して接着性が不十分であるという問題があった。
【0004】
【発明が解決しようとする課題】
本発明は、特に車両用途に好適であり、塩化ビニル樹脂を使用することなく、作業性および電着鋼板への接着性、防錆油の付着した油面鋼板への接着性に優れた硬化性組成物を提供することを目的とする。
【0005】
【課題を解決するための手段】
上記課題を解決する為、本発明者らが鋭意検討を行ったところ、ある特定量の反応性ケイ素基含有ポリオキシアルキレン系重合体、エポキシ樹脂、シラノール縮合触媒、ケチミン化合物、および、脂肪酸若しくはその塩又は樹脂酸若しくはその塩で処理された重質炭酸カルシウムを含有する硬化性組成物を用いることが有効であることを見出し、本発明を完成させるに至った。
【0006】
すなわち本発明の第1は、(A)反応性ケイ素基含有ポリオキシアルキレン系重合体100重量部、(B)エポキシ樹脂1〜80重量部、(C)シラノール縮合触媒1〜15重量部、(D)ケチミン化合物1〜70重量部、および(E)脂肪酸若しくはその塩、又は樹脂酸若しくはその塩で処理された重質炭酸カルシウム100〜900重量部を含有することを特徴とする硬化性組成物に関する。
【0007】
好ましい実施態様としては、(A)成分であるポリオキシアルキレン系重合体における反応性ケイ素基が、一般式(1):
−(Si(R1 2-b)(Xb)O)mSi(R2 3-a)Xa・・・(1)
(式中R1およびR2は、同一または異なり、炭素数1から20のアルキル基、炭素数6から20のアリール基、炭素数7から20のアラルキル基、または(R’)3SiO−で示されるトリオルガノシロキシ基を示し、R1またはR2が2個以上存在する場合は、それらは同一であっても異なっていてもよい。ここでR’は炭素数が1から20の1価の炭化水素基であり、3個のR’は同一であっても異なっていてもよい。Xは水酸基または加水分解性基を示し、Xが2個以上存在する時、それらは同一であっても異なっていてもよい。aは0、1、2または3を、bは0、1または2をそれぞれ示し、a+Σb≧2を満足するものとする。またm個の−Si(R1 2-b)(Xb)O−基におけるbについて、それらは同一であっても異なっていてもよい。mは0から19の整数を示す。)で表されることを特徴とする前記の硬化性組成物に関する。
【0008】
更に好ましい実施態様としては、(A)成分であるポリオキシアルキレン系重合体の主鎖骨格が、ポリオキシプロピレンからなることを特徴とする前記いずれかに記載の硬化性組成物に関する。
【0009】
本発明の第2は、(A)反応性ケイ素基含有ポリオキシアルキレン系重合体100重量部、(B)エポキシ樹脂1〜80重量部、(C)シラノール縮合触媒1〜15重量部、(D)ケチミン化合物1〜70重量部、および(E)脂肪酸若しくはその塩、又は樹脂酸若しくはその塩で処理された重質炭酸カルシウム100〜900重量部を含有し、粘度が300Pa・s以下であることを特徴とする、車両用シーリング材に関する。
【0010】
本発明の第3は、(A)反応性ケイ素基含有ポリオキシアルキレン系重合体100重量部、(B)エポキシ樹脂1〜80重量部、(C)シラノール縮合触媒1〜15重量部、(D)ケチミン化合物1〜70重量部、および(E)脂肪酸若しくはその塩、又は樹脂酸若しくはその塩で処理された重質炭酸カルシウム100〜900重量部を含有し、粘度が300Pa・s以下であることを特徴とする、車両用接着剤に関する。
【0011】
【発明の実施の形態】
以下、本発明を詳細に説明する。
【0012】
本発明に使用される(A)成分の反応性ケイ素基含有ポリオキシアルキレン系重合体の反応性ケイ素基としては、特に限定されるものではないが、代表的なものを示すと、例えば一般式(1):
−(Si(R1 2-b)(Xb)O)mSi(R2 3-a)Xa (1)
(式中R1およびR2は、同一または異なり、炭素数1から20のアルキル基、炭素数6から20のアリール基、炭素数7から20のアラルキル基、または(R’)3SiO−で示されるトリオルガノシロキシ基を示し、R1またはR2が2個以上存在する場合は、それらは同一であっても異なっていてもよい。ここでR’は炭素数1から20の1価の炭化水素基であり、3個のR’は同一であっても異なっていてもよい。Xは水酸基または加水分解性基を示し、Xが2個以上存在する時、それらは同一であっても異なっていてもよい。aは0、1、2または3を、bは0、1または2をそれぞれ示し、a+Σb≧2を満足するものとする。またm個の−Si(R1 2-b)(Xb)O−基におけるbについて、それらは同一であっても異なっていてもよい。mは0から19の整数を示す。)で表わされる基が挙げられる。
【0013】
上記Xのうちの加水分解性基は特に限定されず、従来公知の加水分解性基であれば良い。具体的には、例えば、水素原子、ハロゲン原子、アルコキシ基、アシルオキシ基、ケトキシメート基、アミノ基、アミド基、酸アミド基、アミノオキシ基、メルカプト基、アルケニルオキシ基等が挙げられる。これらの内では、加水分解性が穏やかで取扱いやすいという点でメトキシ基、エトキシ基、プロポキシ基、イソプロポキシ基等のアルコキシ基が特に好ましい。
【0014】
前記の水酸基または加水分解性基は、1個のケイ素原子に1〜3個結合することができ、(a+Σb)は2〜5の範囲であるのが好ましい。水酸基や加水分解性基が反応性ケイ素基中に2個以上存在する場合には、それらは同一であっても異なっていてもよい。
【0015】
反応性ケイ素基中のケイ素原子の数は1個でもよく2個以上でもよいが、シロキサン結合等によりケイ素原子の連結された反応性ケイ素基である場合には20個程度でもよい。
【0016】
特に、下記一般式(2):
−Si(R2 3-c)Xc (2)
(式中R2、Xは前記に同じ。cは2または3を示す。)で表される反応性ケイ素基が入手が容易であるため好ましい。
【0017】
上記一般式(1)または(2)におけるR1、R2の具体例としては、例えばメチル基、エチル基等のアルキル基、シクロヘキシル基等のシクロアルキル基、フェニル基等のアリール基、ベンジル基等のアラルキル基、R’がメチル基やフェニル基等である(R’)3SiO−で示されるトリオルガノシロキシ基等が挙げられる。中でも、適度な反応性を確保できる点より、R1、R2,R’としてはメチル基が特に好ましい。
【0018】
本発明に使用される(A)成分のポリオキシアルキレン系重合体の主鎖構造としては、−R−O−で示される構造を繰り返し単位とする重合体であればよく、このとき、Rは炭素数1から20の2価の有機基であればよい。また、繰り返し単位の全てが同一である単独重合体であっても良く、2つ以上の種類の繰り返し単位を含む共重合体であっても良い。さらに、主鎖中に分岐構造を有していても良い。
【0019】
Rの具体例としては、−CH2CH2−、−CH(CH3)CH2−、−CH(C2H5)CH2−、−C(CH3)2CH2−、−CH2CH2CH2CH2−等が挙げられる。Rとしては、重合体を適度に低粘度化できる点や硬化物に適度な柔軟性を付与できる点から、特に−CH(CH3)CH2−が好ましい。
【0020】
(A)成分のポリオキシアルキレン系重合体の主鎖骨格は、例えば開始剤と触媒の存在下、モノエポキシドを開環重合することによって得られる。
【0021】
開始剤の具体例としては、アリルアルコール、メタリルアルコール、エチレングリコール、プロピレングリコール、ブタンジオール、ヘキサメチレングリコール、ビスフェノールA、水素化ビスフェノールA、ネオペンチルグリコール、ポリブタジエンジオール、ジエチレングリコール、トリエチレングリコール、ポリエチレングリコール、ポリプロピレングリコール、ポリプロピレントリオール、ポリプロピレンテトラオール、ジプロピレングリコール、グリセリン、トリメチロールメタン、トリメチロールプロパン、ペンタエリスリトール等の1価アルコールや2価アルコール、多価アルコール、水酸基を有する各種のオリゴマー等が挙げられる。
【0022】
モノエポキシドの具体例としては、エチレンオキサイド、プロピレンオキサイド、α-ブチレンオキサイド、β-ブチレンオキサイド、ヘキセンオキサイド、シクロヘキセンオキサイド、スチレンオキサイド、α−メチルスチレンオキサイド等のアルキレンオキサイド類や、メチルグリシジルエーテル、エチルグリシジルエーテル、イソプロピルグリシジルエーテル、ブチルグリシジルエーテル等のアルキルグリシジルエーテル類、アリルグリシジルエーテル類、アリールグリシジルエーテル類等が挙げられる。
【0023】
触媒としてはKOH、NaOH等のアルカリ触媒、トリフルオロボラン−エーテラート等の酸性触媒、アルミノポルフィリン金属錯体やシアン化コバルト亜鉛−グライム錯体触媒等の複合金属シアン化物錯体触媒等の既に公知のものが用いられる。特に副反応が少ない点から、複合金属シアン化物錯体触媒の使用が好ましいが、それ以外のものであってもよい。
【0024】
この他、ポリオキシアルキレン系重合体の主鎖骨格は、水酸基末端ポリオキシアルキレン系重合体を塩基性化合物、例えばKOH、NaOH、KOCH3、NaOCH3等の存在下、2官能以上のハロゲン化アルキル、例えばCH2Cl2、CH2Br2等による鎖延長等によっても得ることができる。また、2官能や3官能のイソシアネート化合物によって水酸基末端ポリオキシアルキレン系重合体を鎖延長する方法等も挙げられる。
【0025】
反応性ケイ素基をポリオキシアルキレン系重合体中に導入する方法としては、特に限定されず、種々の方法を用いることができる。特に、1分子中に一般式(3):
CH2=CH−R3−O− (3)
または一般式(4):
CH2=C(R4)−R3−O− (4)
(式中R3は炭素数1から20の2価の有機基、R4は炭素数10以下の炭化水素基)で示される不飽和基を末端に有するポリオキシアルキレン系重合体と、
一般式(5):
H−(Si(R1 2-b)(Xb)O)mSi(R2 3-a)Xa (5)
(式中R1,R2,X,a,b,mは前記に同じ。)で示される反応性ケイ素基含有化合物とを、8族遷移金属触媒の存在下で反応させる方法が好ましい。
【0026】
これ以外にも、水酸基末端ポリオキシアルキレン系重合体への反応性ケイ素基含有イソシアネート化合物の添加や、イソシアネート基末端ポリオキシアルキレン系重合体と反応性ケイ素基含有アミン化合物との反応、イソシアネート基末端ポリオキシアルキレン系重合体と反応性ケイ素基含有メルカプタン化合物との反応等によっても得ることができる。
【0027】
末端に一般式(3)または(4)で示される不飽和基を有するポリオキシアルキレン系重合体の製造法としては、従来公知の方法を用いればよく、例えば水酸基末端ポリオキシアルキレン系重合体に不飽和結合を有する化合物を反応させて、エーテル結合、エステル結合、ウレタン結合、カーボネート結合等により結合させる方法等が挙げられる。例えばエーテル結合により不飽和基を導入する場合は、ポリオキシアルキレン系重合体の水酸基末端のメタルオキシ化により−OM(MはNaまたはK等が好ましい)を生成した後、一般式(6):
CH2=CH−R3−X2 (6)
または一般式(7):
CH2=C(R4)−R3−X2 (7)
(式中R3,R4は前記に同じ。X2はハロゲン原子)で示される不飽和基含有化合物を反応させる方法が挙げられる。
【0028】
一般式(6)または(7)で示される不飽和基含有化合物の具体例としては、CH2=CH−CH2−Cl、CH2=CH−CH2−Br、CH2=CH−C2H4−Cl、CH2=CH−C2H4−Br、CH2=CH−C3H6−Cl、CH2=CH−C3H6−Br、CH2=C(CH3)−CH2−Cl、CH2=C(CH3)−CH2−Br、CH2=C(CH2CH3)−CH2−Cl、CH2=C(CH2CH3)−CH2−Br、CH2=C(CH2CH(CH3)2)−CH2−Cl、CH2=C(CH2CH(CH3)2)−CH2−Br、等が挙げられ、特に反応性の点から、CH2=CH−CH2−Cl、CH2=C(CH3)−CH2−Clが好ましい。
【0029】
不飽和基の導入方法としては、これ以外にCH2=CH−CH2−基やCH2=C(CH3)−CH2−基等を有するイソシアネート化合物、カルボン酸、エポキシ化合物を用いることもできる。
【0030】
8族遷移金属触媒としては、白金、ロジウム、コバルト、パラジウム及びニッケル等の8族遷移金属元素から選ばれた金属錯体触媒等が有効に使用される。例えば、H2PtCl6・6H2O、白金−ビニルシロキサン錯体、白金−オレフィン錯体、Ptメタル、RhCl(PPh3)3、RhCl3、Rh/Al2O3、RuCl3、IrCl3、FeCl3、PdCl2・2H2O、NiCl2等のような化合物が使用できるが、ヒドロシリル化の反応性の点から、H2PtCl6・6H2O、白金−ビニルシロキサン錯体、白金−オレフィン錯体のいずれかであることが特に好ましい。
【0031】
この様な製造法は、例えば、特許第1396791号、特許第1727750号、特許第2135751号、特開平3−72527号の各公報に記載されている。
【0032】
ポリオキシアルキレン系重合体の分子量には特に制限はないが、GPC(東ソー株式会社製HLC−8120GPC、THF溶媒)におけるポリスチレン換算での数平均分子量が500〜100,000であることが好ましい。更には取り扱いの容易さ等の点から1,000〜70,000であることが好ましい。数平均分子量が500未満であると硬化物が脆くなるため好ましくなく、100,000を越えると重合体の粘度が高くなりすぎるため好ましくない。
【0033】
本発明の(B)成分であるエポキシ樹脂としては、通常用いられる分子内に平均一個以上のエポキシ基を含有する化合物であればよく、特に、接着性の点から、分子内に平均一個以上のグリシジルエーテル基、グリシジルエステル基、グリシジルアミノ基等のグリシジル基を有するものが好ましい。
【0034】
上記グリシジルエーテル基を有するエポキシ樹脂は、フェノールまたはアルコール性水酸基を周知の方法でグリシジルエーテル化して得られるものであり、例えば、レゾルシノール、ヒドロキノン、ピロカテコール、フロログリシノール、ジヒドロキシナフタレン、ビフェノール、メチレンビスフェノール(ビスフェノールF)、メチレンビス(オルソクレゾール)、エチリデンビスフェノール、イソプロピリデンビスフェノール(ビスフェノールA)、イソプロピリデンビス(オルソクレゾール)、テトラブロモビスフェノールA、ビス(ヒドロキシフェニル)フェニルメタン、ビス(ヒドロキシフェニル)シクロヘキシルメタン、シクロヘキシリデンビスフェノール、チオビスフェノール、スルホビスフェノール(ビスフェノールS)、オキシビスフェノール、フェノール−ホルムアルデヒド縮合物等の単核または多核多価フェノール類のポリグリシジルエーテル、およびエチレングリコール、プロピレングリコール、ブチレングリコール、ヘキサンジオール、ポリグリコール、チオジグリコール、グリセリン、トリメチロールプロパン、ペンタエリスリトール、ソルビトール、ビスフェノールA−エチレンオキシド付加物、ビスフェノールA−プロピレンオキシド付加物等の多価アルコール類のグリシジルエーテルが挙げられる。
【0035】
上記グリシジルエステル基を有するエポキシ樹脂としては、例えば、マレイン酸、フマル酸、イタコン酸、コハク酸、グルタル酸、アジピン酸、スベリン酸、アゼライン酸、セバシン酸、ダイマー酸、トリマー酸、フタル酸、イソフタル酸、テレフタル酸、トリメリット酸、トリメシン酸、ピロメリット酸、テトラヒドロフタル酸、ヘキサヒドロフタル酸、エンドメチレンテトラヒドロフタル酸等の脂肪族、芳香族または脂環族多塩基酸のグリシジルエステル類、およびグリシジルメタクリレートの単独重合体または共重合体等が挙げられる。
【0036】
上記グリシジルアミノ基を有するエポキシ樹脂としては、例えば、N,N−ジグリシジルアニリン、テトラグリシジルジアミノジフェニルメタン等が挙げられる。
【0037】
これらエポキシ樹脂は、単独で使用してもよく2種類以上を併用してもよい。また、エポキシ樹脂の中では、作業性や硬化性、油面接着性、接着強度等のバランスの点から、ビスフェノールA型エポキシ樹脂が好ましい。
【0038】
斯かるエポキシ樹脂は、(A)成分100重量部に対し、通常1〜80重量部の範囲、好ましくは2〜70重量部の範囲で使用されるのが良い。エポキシ樹脂の使用量が1重量部未満では十分な油面接着性が得られず、80重量部を超えると相溶性の低下等が起こり接着性が低下するため好ましくない。
【0039】
本発明の(C)成分であるシラノール縮合触媒としては、従来公知のものを広く使用でき、例えばテトラブチルチタネート、テトラプロピルチタネート等のチタン酸エステル類;ジブチルスズジラウレート、ビス(ジブチルスズラウレート)オキシド、ジブチルスズマレート、ジブチルスズジアセテート、オクチル酸スズ、ナフテン酸スズ、ジブチルスズオキシドとフタル酸エステルとの反応物、ジブチルスズオキシドとマレイン酸エステルとの反応物、ジブチルスズビスアセチルアセトナート等の有機スズ化合物類;アルミニウムトリスアセチルアセトナート、アルミニウムトリスエチルアセトアセテート、ジイソプロポキシアルミニウムエチルアセトアセテート等の有機アルミニウム化合物類;ジルコニウムテトラアセチルアセトナート、チタンテトラアセチルアセトナート等のキレート化合物類;オクチル酸鉛;オクチルアミン、ラウリルアミン、モノエタノールアミン、シクロヘキシルアミン等のアミン化合物、あるいはこれらアミン化合物のカルボン酸等との塩;酸性リン酸エステル;酸性リン酸エステルとアミンの反応物;飽和若しくは不飽和の多価カルボン酸又はその酸無水物;過剰のポリアミンと多塩基酸とから得られる低分子量ポリアミド樹脂;過剰のポリアミンとエポキシ化合物との反応生成物、更には他の酸性触媒、塩基性触媒等の公知のシラノール縮合触媒等が挙げられる。これらの触媒は単独で使用してもよく、2種類以上併用してもよい。
【0040】
斯かるシラノール縮合触媒は、(A)成分100重量部に対し、通常1〜15重量部の範囲、好ましくは2〜10重量部の範囲で使用されるのが良い。1重量部未満では組成物の硬化性が低下し、15重量部を超えると貯蔵安定性や接着性の低下等が起こるため好ましくない。特に硬化速度や貯蔵安定性の点より、4価の有機スズ系化合物が好ましい。
【0041】
本発明の(D)成分であるケチミン化合物としては、特に限定されるものではないが、代表的なものを示すと、例えば一般式(8):
−N=CR5R6 (8)
(式中R5、R6は、同一または異なり、アルキル基、シクロアルキル基、アリール基)で示される基を少なくとも1分子内に1個以上有する化合物類が挙げられる。
【0042】
上記化合物を製造する為に用いられるアミン化合物としては、脂肪族系、脂環族系、芳香族系、ポリエーテル系、ポリアミド系、反応性ケイ素基含有系のいずれであってもよい。具体的には、エチレンジアミン、プロピレンジアミン、ヘキサメチレンジアミン、ジエチレントリアミン、トリエチレンテトラミン、テトラエチレンペンタミン等の脂肪族ポリアミン類、1,3−ジアミノシクロヘキサン、1,4−ジアミノシクロヘキサン、ビス(4−アミノシクロヘキシル)メタン、ビス(4−アミノ−3−メチルシクロヘキシル)メタン、イソホロンジアミン、ノルボルナンジアミン等の脂環族ポリアミン類、ジアミノジフェニルメタン、m−フェニレンジアミン、m−キシリレンジアミン等の芳香族ポリアミン類、ポリオキシプロピレンジアミン、ポリオキシプロピレントリアミン等のポリエーテルアミン類、ポリアミドの分子末端にアミノ基を有するポリアミドアミン類、γ−アミノプロピルトリメトキシシラン、γ−アミノプロピルトリエトキシシラン、γ−アミノプロピルメチルジメトキシシラン、γ−(2−アミノエチル)アミノプロピルトリエトキシシラン等の反応性ケイ素基含有アミン類が挙げられる。
【0043】
上記ポリアミン化合物をケチミン化する為に使用するケトン類としては、特に限定されるものではなく、例えばアセトン、メチルエチルケトン、ジエチルケトン、メチルイソプロピルケトン、ジイソプロピルケトン、メチルイソブチルケトン、メチルt−ブチルケトン、ジイソブチルケトン、シクロヘキサノン、シクロペンタノン、ベンゾフェノン等を挙げることができる。
【0044】
多価脂肪族ポリアミンを用いた場合、ケチミン化反応の後に残るイミノ基に対し各種エポキシ化合物を反応させることにより、その活性を低下せしめることができる。エポキシ化合物の具体例としては、ブチルグリシジルエーテル、ドデシルグリシジルエーテル、フェニルグリシジルエーテル、クレジルグリシジルエーテル等を挙げることができる。
【0045】
斯かるケチミン化合物は、(A)成分100重量部に対し、通常1〜70重量部の範囲、好ましくは2〜60重量部の範囲で使用されるのが良い。1重量部未満では組成物の硬化が不十分となって油面接着性が低下し、70重量部を超えると貯蔵安定性の低下等が起こるため好ましくない。
【0046】
本発明の(E)成分である脂肪酸若しくはその塩、又は樹脂酸若しくはその塩で処理された重質炭酸カルシウムとしては、カルサイト型の結晶質の石灰石を乾式粉砕した後分級したものや湿式粉砕後に分級したもの、湿式粉砕後に分級し乾燥したものに対し、脂肪酸若しくはその塩、又は樹脂酸若しくはその塩を接触させたものを使用することができる。
【0047】
上記脂肪酸若しくはその塩、又は樹脂酸若しくはその塩としては、例えばカプリン酸、ラウリン酸、ミリスチン酸、パルミチン酸、ステアリン酸、アラギジン酸、ベヘニン酸等の飽和脂肪酸、オレイン酸、エライジン酸、リノール酸、リシノール酸等の不飽和脂肪酸、ナフテン酸等の環状飽和脂肪酸、アビエチン酸、ネオアビエチン酸、d−ピマル酸、安息香酸、ケイ皮酸、p−オキシケイ皮酸等の樹脂酸、及びこれらのナトリウム、カリウム、アンモニウム塩等が挙げられる。
【0048】
上記の表面処理された重質炭酸カルシウムは、膠質炭酸カルシウムに比べて脱水が容易であることから、組成物の貯蔵安定性を高めることができ、また、粒子径が大きいことから組成物の低粘度化が容易となり、ガンからの突出速度を高めることができる。表面処理された重質炭酸カルシウムの代わりに表面処理されていない重質炭酸カルシウムを用いた場合、貯蔵中に組成物の変質等が起こり、油面接着性が低下するので好ましくない。
【0049】
斯かる表面処理を施された重質炭酸カルシウムは、(A)成分100重量部に対し、通常100〜900重量部の範囲、好ましくは150〜800重量部の範囲で使用されるのが良い。100重量部未満では十分な強度、揺変性が得られないことがあり、900重量部を超えると粘度の上昇や接着性低下が起こるため好ましくない。
【0050】
本発明の硬化性組成物は、必要に応じてシランカップリング剤、熱活性型エポキシ樹脂用硬化剤、充填材、揺変剤、可塑剤、希釈剤、安定剤、または着色剤等を添加することができる。
【0051】
シランカップリング剤の具体例としては、例えば、γ−アミノプロピルトリメトキシシラン、γ−アミノプロピルトリエトキシシラン、γ−アミノプロピルメチルジメトキシシラン、γ−アミノプロピルメチルジエトキシシラン、γ−(2−アミノエチル)アミノプロピルトリメトキシシラン、γ−(2−アミノエチル)アミノプロピルメチルジメトキシシラン、γ−(2−アミノエチル)アミノプロピルトリエトキシシラン、γ−(2−アミノエチル)アミノプロピルメチルジエトキシシラン、γ−ウレイドプロピルトリメトキシシラン、N−フェニル−γ−アミノプロピルトリメトキシシラン、N−ベンジル−γ−アミノプロピルトリメトキシシラン、N−ビニルベンジル−γ−アミノプロピルトリエトキシシラン等のアミノ基含有シラン類;γ−メルカプトプロピルトリメトキシシラン、γ−メルカプトプロピルトリエトキシシラン、γ−メルカプトプロピルメチルジメトキシシラン、γ−メルカプトプロピルメチルジエトキシシラン等のメルカプト基含有シラン類;γ−グリシドキシプロピルトリメトキシシラン、γ−グリシドキシプロピルトリエトキシシラン、γ−グリシドキシプロピルメチルジメトキシシラン、β−(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、β−(3,4−エポキシシクロヘキシル)エチルトリエトキシシラン等のエポキシ基含有シラン類;β−カルボキシエチルトリエトキシシラン、β−カルボキシエチルフェニルビス(2−メトキシエトキシ)シラン、N−β−(カルボキシメチル)アミノエチル−γ−アミノプロピルトリメトキシシラン等のカルボキシシラン類;ビニルトリメトキシシラン、ビニルトリエトキシシラン、γ−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、γ−アクリロイルオキシプロピルトリメトキシシラン、γ−アクリロイルオキシプロピルトリエトキシシラン等のビニル型不飽和基含有シラン類;γ−クロロプロピルトリメトキシシラン等のハロゲン含有シラン類;トリス(トリメトキシシリル)イソシアヌレート等のイソシアヌレートシラン類;γ−イソシアネートプロピルトリメトキシシラン、γ−イソシアネートプロピルトリエトキシシラン、γ−イソシアネートプロピルメチルジエトキシシラン、γ−イソシアネートプロピルメチルジメトキシシラン等のイソシアネート基含有シラン類;(B)成分であるエポキシ樹脂とアミノ基含有シラン類の反応物、エポキシ基含有シラン類とアミノ基含有シラン類の反応物等を挙げることができる。また、これらを変性した誘導体である、アミノ変性シリルポリマー、シリル化アミノポリマー、不飽和アミノシラン錯体、ブロックイソシアネートシラン、フェニルアミノ長鎖アルキルシラン、アミノシリル化シリコーン、シリル化ポリエステル等もシランカップリング剤として用いることができる。これらシランカップリング剤は、単独で使用してもよく2種類以上を併用してもよい。
【0052】
斯かるシランカップリング剤は、(A)成分100重量部に対し、通常0.5〜20重量部の範囲、好ましくは1〜15重量部の範囲で使用されるのが良い。シランカップリング剤が0.5重量部未満では接着性が低下し、20重量部を超えると組成物の反応性が低下する場合があるため好ましくない。特に、貯蔵安定性と接着性の点より、エポキシシラン類が好ましい。
【0053】
熱活性型エポキシ樹脂用硬化剤の具体例としては、例えば、テトラヒドロ無水フタル酸、メチルテトラヒドロ無水フタル酸、無水メチルナジック酸、ヘキサヒドロ無水フタル酸、ドデシル無水コハク酸等の酸無水物類;2−メチルイミダゾール、2−エチル−4−メチルイミダゾール、2−ウンデシルイミダゾール、2−ヘプタデシルイミダゾール、2−フェニルイミダゾール等のイミダゾール類;ジシアンジアミド等を挙げることができる。
【0054】
斯かる熱活性型エポキシ樹脂用硬化剤は必ずしも添加する必要はないが、添加する場合には(B)成分100重量部に対し、通常1〜70重量部の範囲、好ましくは2〜60重量部の範囲で使用されるのが良い。熱活性型エポキシ樹脂用硬化剤の使用量が1重量部未満では加熱時のエポキシ樹脂の硬化が不十分となることがあり、70重量部を超えると界面へのブリード等により接着性が低下する場合があるため好ましくない。
【0055】
充填材の具体例としては、例えば、膠質炭酸カルシウム、重質炭酸カルシウム(ただし、表面が処理されていないタイプ、又は、脂肪酸若しくはその塩又は樹脂酸若しくはその塩以外の処理剤で処理されたタイプ)、炭酸マグネシウム、酸化チタン、カーボンブラック、溶融シリカ、沈降性シリカ、けいそう土、白土、カオリン、クレー、タルク、木粉、クルミ殻粉、もみ殻粉、無水ケイ酸、石英粉末、アルミニウム粉末、亜鉛粉末、アスベスト、ガラス繊維、炭素繊維、ガラスビーズ、アルミナ、ガラスバルーン、シラスバルーン、シリカバルーン、酸化ケイ素等の無機充填材や、パルプ、木綿チップ等の木質充填材、アクリル樹脂粉末、ウレタン樹脂粉末、粉末ゴム、再生ゴム、ポリエチレン等の中空体等が有機充填材として挙げられる。これら充填材は単独で使用してもよく、2種類以上を併用してもよい。
【0056】
斯かる充填材は必ずしも添加する必要はないが、添加する場合には(A)成分100重量部に対し、通常10〜500重量部の範囲、好ましくは20〜400重量部の範囲で使用されるのが良い。充填剤の使用量が10重量部未満では組成物の揺変性が不十分となる場合があり、また500重量部を超えると粘度が上がり組成物の突出性が低下するため好ましくない。
【0057】
揺変剤の具体例としては、例えば、水添ヒマシ油、有機アミドワックス、有機ベントナイト、ステアリン酸カルシウム等が挙げられる。これらの揺変剤は、単独で使用してもよく、2種類以上併用してもよい。
【0058】
斯かる揺変剤は、(A)成分100重量部に対して0.1〜50重量部の範囲、好ましくは1〜30重量部の範囲で使用されるのが良い。揺変剤の使用量が0.1重量部未満の場合は十分な揺変が得られない場合があり、また50重量部を越える場合はコストが上昇するなどの点で好ましくない。
【0059】
可塑剤の具体例としては、例えば、ジオクチルフタレート、ジブチルフタレート、ブチルベンジルフタレート等のフタル酸エステル類;アジピン酸ジオクチル、コハク酸イソデシル、セバシン酸ジブチル等の脂肪族二塩基酸エステル類;ジエチレングリコールジベンゾエート、ペンタエリスリトールエステル等のグリコールエステル類;オレイン酸ブチル、アセチルリシノール酸メチル等の脂肪族エステル類;リン酸トリクレジル、リン酸トリオクチル、リン酸オクチルジフェニル等のリン酸エステル類、エポキシ化大豆油、エポキシ化アマニ油、エポキシステアリン酸ベンジル等のエポキシ系可塑剤類;2塩基酸と2価アルコールとのポリエステル類等のポリエステル系可塑剤類;ポリプロピレングリコールやその誘導体等のポリエーテル類;パラフィン系炭化水素、ナフテン系炭化水素、パラフィン−ナフテン系混合炭化水素等の炭化水素系可塑剤類;塩素化パラフィン類等が挙げられる。これらの可塑剤は単独で使用してもよく、2種類以上併用してもよい。
【0060】
斯かる可塑剤は、(A)成分100重量部に対し、通常10〜300重量部の範囲、好ましくは20〜250重量部の範囲で使用されるのが良い。可塑剤の使用量が10重量部未満の場合には組成物の粘度が高くなりすぎる場合があり、また300重量部を越える場合は硬化物からの可塑剤の染み出しなどが生じる場合があるため好ましくない。
【0061】
車両用途で使用されるシーリング材、接着剤は、通常ガンを用いて手動または自動で塗布されるが、粘度が高すぎるとガンからの突出性が低下するため作業速度が低下する場合があり、好ましくない。従って、硬化性組成物の粘度は300Pa・s以下であることが好ましい。なお、本発明でいう粘度とは、BH形粘度計を用いて、10rpm、7号ローター、23℃の条件にて測定した値である。
【0062】
本発明の硬化性組成物は、適度な作業性、硬化性、電着鋼板への接着性、および油面鋼板への接着性を有することから、例えば、車両用シーリング材、接着剤等として広範囲に使用することができる。
【0063】
【実施例】
本発明をより一層明らかにする為に、以下に具体的な実施例をあげて説明するが、本発明はこれらに限定されるものではない。
(合成例1)
数平均分子量が各々3,000のポリプロピレングリコール80重量部とポリプロピレントリオール20重量部を開始剤とし、ナトリウムメトキシド(28%メタノール溶液)13重量部を添加してメタノールを留去した。次いで、ジクロロメタン2.2重量部を添加した後、再びナトリウムメトキシド(28%メタノール溶液)4.4重量部を添加してメタノールを留去した後、3−クロロ−1−プロペン2.7重量部を添加して末端にアリル基を有する重合体を得た。この重合体100重量部に対し、塩化白金酸六水和物(5重量%イソプロパノール溶液)6×10-3重量部を加えた後、メチルジメトキシシラン2.1重量部を添加し90℃で2時間反応させた。得られた重合体の数平均分子量は、GPCを測定した結果、18,000であった(ポリマーA)。
(合成例2)
数平均分子量約5,200のポリオキシプロピレングリコール100重量部とイソホロンジイソシアネート6.28重量部を混合した後、錫触媒(ジブチル錫ジラウレートの10%ジオクチルフタレート溶液)0.1重量部を添加し、80℃で4時間反応させた。イソシアネート基の滴定を行ったところ、0.579%であった。これより求めた分子量は約15,000であった。60℃まで冷却した後、イソシアネート基に対しγ−アミノプロピルトリメトキシシラン1.0当量を加え、約30分間攪拌した。IRを測定した結果、イソシアネート基が消失したことを確認した。(ポリマーB)。
(硬化性組成物の調製)
表1に示す配合組成にて各種配合材を、5L万能混合撹拌機(ダルトン社製5DMV−r型)により混練し、実施例1〜9および比較例1〜9の1液型硬化性組成物を作製した。
(物性評価)
評価は以下に示す項目について実施した。
作業性
BH形粘度計にてローターNo.7を使用し、23℃雰囲気下回転数10rpmの条件で測定を実施した。粘度が300Pa・s以下である場合を○、300Pa・sを超える場合を×とした。
接着性
防錆油を塗布した冷間圧延鋼板(JISG3141記載のダル仕上げタイプ)およびカチオン電着鋼板へ硬化性組成物をビード状に塗布した後、23℃雰囲気下7日間養生し、硬化物を引き剥がして接着状態を観察した。鋼板側へ硬化物が残った場合を○、残らなかった場合を×とした。
【0064】
評価結果を表1に示す。
【0065】
【表1】
実施例の硬化性組成物は、低粘度で作業性が良好であり、かつ油面鋼板および電着鋼板へ良好な接着性を示した。一方、比較例では作業性と接着性の両方のバランスに優れた系は見られなかった。
【0066】
【発明の効果】
本発明により、塩化ビニル樹脂を含むことなく作業性が良好であり、かつ油面鋼板および電着鋼板への接着性に優れた車両用途に好適な硬化性組成物が得られる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a curable composition suitable for a vehicle application that does not contain a vinyl chloride resin, has good workability, and has excellent adhesion to oil-surfaced steel sheets and electrodeposited steel sheets.
[0002]
[Prior art]
Vinyl chloride-based plastisol compositions are widely used for wallpaper and flooring for buildings, underbody coating materials and sealing materials for vehicles, and the like. However, in recent years, due to environmental problems, recycling problems, and the like, alternatives that produce fewer harmful substances during combustion have been desired. In view of the above, in Japanese Patent Application Laid-Open No. 4-154476, Japanese Patent Application Laid-Open No. 5-32934, Japanese Patent Application Laid-Open No. 5-86325, or Japanese Patent Application Laid-Open No. 2001-11383, a reactive silicon group-containing oxyalkylene polymer is used. An alternative to a vinyl chloride plastisol composition has been proposed by using a composition that uses styrene, and when the polymer is used for a vehicle, it is room temperature curable, and rustproof and vibration proof properties can be obtained. It is disclosed.
[0003]
However, as described in JP-A-3-140321, JP-A-5-70651, and the like, in vehicles, adhesion to oil-surface steel plates to which rust preventive oil is attached in addition to adhesion to electrodeposited steel plates. However, the composition using the reactive silicon group-containing oxyalkylene polymer has a problem that the adhesiveness is particularly insufficient with respect to the latter.
[0004]
[Problems to be solved by the invention]
The present invention is particularly suitable for vehicle use, and without using a vinyl chloride resin, it has excellent workability, adhesion to an electrodeposited steel sheet, and excellent curability to an oil-coated steel sheet to which rust preventive oil is attached. An object is to provide a composition.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present inventors conducted extensive studies and found that a specific amount of a reactive silicon group-containing polyoxyalkylene polymer, an epoxy resin, a silanol condensation catalyst, a ketimine compound, and a fatty acid or its The present inventors have found that it is effective to use a curable composition containing heavy calcium carbonate treated with a salt or a resin acid or a salt thereof, and have completed the present invention.
[0006]
That is, the first of the present invention is (A) 100 parts by weight of a reactive silicon group-containing polyoxyalkylene polymer, (B) 1 to 80 parts by weight of an epoxy resin, (C) 1 to 15 parts by weight of a silanol condensation catalyst, ( D) 1 to 70 parts by weight of a ketimine compound, and (E) 100 to 900 parts by weight of heavy calcium carbonate treated with a fatty acid or a salt thereof, or a resin acid or a salt thereof, About.
[0007]
As a preferred embodiment, the reactive silicon group in the polyoxyalkylene polymer as the component (A) is represented by the general formula (1):
-(Si (R1 2-b) (XbO)mSi (R2 3-a) Xa... (1)
(Where R1And R2Are the same or different and each represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or (R ')ThreeR represents a triorganosiloxy group represented by SiO-1Or R2When two or more exist, they may be the same or different. Here, R ′ is a monovalent hydrocarbon group having 1 to 20 carbon atoms, and three R ′ may be the same or different. X represents a hydroxyl group or a hydrolyzable group, and when two or more X exist, they may be the same or different. a represents 0, 1, 2 or 3; b represents 0, 1 or 2; and a + Σb ≧ 2 is satisfied. In addition, m -Si (R1 2-b) (Xb) For b in the O- group, they may be the same or different. m represents an integer of 0 to 19. It is related with the said curable composition characterized by the above-mentioned.
[0008]
As a more preferred embodiment, the main chain skeleton of the polyoxyalkylene polymer as the component (A) is composed of polyoxypropylene, and the curable composition as described in any one of the above.
[0009]
The second of the present invention is (A) 100 parts by weight of a reactive silicon group-containing polyoxyalkylene polymer, (B) 1 to 80 parts by weight of an epoxy resin, (C) 1 to 15 parts by weight of a silanol condensation catalyst, (D 1) 70 to 70 parts by weight of a ketimine compound, and (E) 100 to 900 parts by weight of heavy calcium carbonate treated with a fatty acid or a salt thereof, or a resin acid or a salt thereof, and a viscosity of 300 Pa · s or less. It is related with the sealing material for vehicles characterized by these.
[0010]
The third of the present invention is (A) 100 parts by weight of a reactive silicon group-containing polyoxyalkylene polymer, (B) 1 to 80 parts by weight of an epoxy resin, (C) 1 to 15 parts by weight of a silanol condensation catalyst, (D 1) 70 to 70 parts by weight of a ketimine compound, and (E) 100 to 900 parts by weight of heavy calcium carbonate treated with a fatty acid or a salt thereof, or a resin acid or a salt thereof, and a viscosity of 300 Pa · s or less. It is related with the adhesive agent for vehicles characterized by these.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail.
[0012]
The reactive silicon group of the reactive silicon group-containing polyoxyalkylene polymer used as the component (A) in the present invention is not particularly limited. (1):
-(Si (R1 2-b) (XbO)mSi (R2 3-a) Xa (1)
(Where R1And R2Are the same or different and each represents an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or (R ')ThreeR represents a triorganosiloxy group represented by SiO-1Or R2When two or more exist, they may be the same or different. Here, R ′ is a monovalent hydrocarbon group having 1 to 20 carbon atoms, and three R ′ may be the same or different. X represents a hydroxyl group or a hydrolyzable group, and when two or more X exist, they may be the same or different. a represents 0, 1, 2 or 3; b represents 0, 1 or 2; and a + Σb ≧ 2 is satisfied. In addition, m -Si (R1 2-b) (Xb) For b in the O- group, they may be the same or different. m represents an integer of 0 to 19. ) Is represented.
[0013]
The hydrolyzable group in X is not particularly limited as long as it is a conventionally known hydrolyzable group. Specific examples include a hydrogen atom, a halogen atom, an alkoxy group, an acyloxy group, a ketoximate group, an amino group, an amide group, an acid amide group, an aminooxy group, a mercapto group, and an alkenyloxy group. Among these, alkoxy groups such as a methoxy group, an ethoxy group, a propoxy group, and an isopropoxy group are particularly preferable because they are mildly hydrolyzable and easy to handle.
[0014]
The hydroxyl group or hydrolyzable group can be bonded to 1 to 3 silicon atoms, and (a + Σb) is preferably in the range of 2 to 5. When two or more hydroxyl groups or hydrolyzable groups are present in the reactive silicon group, they may be the same or different.
[0015]
The number of silicon atoms in the reactive silicon group may be one or two or more, but may be about 20 in the case of a reactive silicon group in which silicon atoms are linked by a siloxane bond or the like.
[0016]
In particular, the following general formula (2):
-Si (R2 3-c) Xc (2)
(Where R2, X is the same as above. c represents 2 or 3. The reactive silicon group represented by) is preferable because it is easily available.
[0017]
R in the general formula (1) or (2)1, R2Specific examples of these include, for example, an alkyl group such as a methyl group and an ethyl group, a cycloalkyl group such as a cyclohexyl group, an aryl group such as a phenyl group, an aralkyl group such as a benzyl group, and R ′ is a methyl group or a phenyl group. (R ')ThreeA triorganosiloxy group represented by SiO- is exemplified. Above all, R can be ensured from the viewpoint of adequate reactivity.1, R2, R ′ is particularly preferably a methyl group.
[0018]
The main chain structure of the polyoxyalkylene polymer of the component (A) used in the present invention may be a polymer having a structure represented by -RO- as a repeating unit, and at this time, R is Any divalent organic group having 1 to 20 carbon atoms may be used. Moreover, the homopolymer in which all the repeating units are the same may be sufficient, and the copolymer containing a 2 or more types of repeating unit may be sufficient. Furthermore, the main chain may have a branched structure.
[0019]
As a specific example of R, —CH2CH2-, -CH (CHThree) CH2-, -CH (C2HFive) CH2-, -C (CHThree)2CH2-, -CH2CH2CH2CH2-Etc. are mentioned. R is particularly —CH (CH, from the viewpoint that the viscosity of the polymer can be appropriately lowered and that a moderate flexibility can be imparted to the cured product.Three) CH2-Is preferred.
[0020]
The main chain skeleton of the polyoxyalkylene polymer (A) can be obtained, for example, by ring-opening polymerization of a monoepoxide in the presence of an initiator and a catalyst.
[0021]
Specific examples of the initiator include allyl alcohol, methallyl alcohol, ethylene glycol, propylene glycol, butanediol, hexamethylene glycol, bisphenol A, hydrogenated bisphenol A, neopentyl glycol, polybutadiene diol, diethylene glycol, triethylene glycol, polyethylene Monohydric alcohols such as glycol, polypropylene glycol, polypropylene triol, polypropylene tetraol, dipropylene glycol, glycerin, trimethylol methane, trimethylol propane and pentaerythritol, dihydric alcohols, polyhydric alcohols, various oligomers having hydroxyl groups, etc. Can be mentioned.
[0022]
Specific examples of the monoepoxide include ethylene oxide, propylene oxide, α-butylene oxide, β-butylene oxide, hexene oxide, cyclohexene oxide, styrene oxide, α-methylstyrene oxide and other alkylene oxides, methyl glycidyl ether, ethyl Examples thereof include alkyl glycidyl ethers such as glycidyl ether, isopropyl glycidyl ether, and butyl glycidyl ether, allyl glycidyl ethers, and aryl glycidyl ethers.
[0023]
Alkali catalysts such as KOH and NaOH, acidic catalysts such as trifluoroborane-etherate, etc., as well as known catalysts such as double metal cyanide complex catalysts such as aluminoporphyrin metal complexes and cobalt zinc cyanide-glyme complex catalysts are used as catalysts. It is done. In particular, the use of a double metal cyanide complex catalyst is preferable from the viewpoint of few side reactions, but other materials may be used.
[0024]
In addition, the main chain skeleton of the polyoxyalkylene polymer is a hydroxyl group-terminated polyoxyalkylene polymer that is a basic compound such as KOH, NaOH, KOCH.Three, NaOCHThreeIn the presence of bifunctional or higher functional alkyl halides such as CH2Cl2, CH2Br2It can also be obtained by chain extension or the like. Moreover, the method etc. which chain-extend a hydroxyl-terminated polyoxyalkylene polymer with a bifunctional or trifunctional isocyanate compound are also mentioned.
[0025]
The method for introducing the reactive silicon group into the polyoxyalkylene polymer is not particularly limited, and various methods can be used. In particular, the general formula (3) per molecule:
CH2= CH-RThree-O- (3)
Or general formula (4):
CH2= C (RFour-RThree-O- (4)
(Where RThreeIs a divalent organic group having 1 to 20 carbon atoms, RFourIs a polyoxyalkylene-based polymer having an unsaturated group at the end represented by a hydrocarbon group having 10 or less carbon atoms,
General formula (5):
H- (Si (R1 2-b) (XbO)mSi (R2 3-a) Xa (5)
(Where R1, R2, X, a, b, m are the same as above. The method in which the reactive silicon group-containing compound represented by (1) is reacted in the presence of a group 8 transition metal catalyst is preferred.
[0026]
In addition to this, addition of a reactive silicon group-containing isocyanate compound to a hydroxyl group-terminated polyoxyalkylene polymer, reaction of an isocyanate group-terminated polyoxyalkylene polymer with a reactive silicon group-containing amine compound, isocyanate group terminal It can also be obtained by a reaction between a polyoxyalkylene polymer and a reactive silicon group-containing mercaptan compound.
[0027]
As a method for producing a polyoxyalkylene polymer having an unsaturated group represented by the general formula (3) or (4) at the terminal, a conventionally known method may be used. For example, for a hydroxyl-terminated polyoxyalkylene polymer, Examples thereof include a method in which a compound having an unsaturated bond is reacted and bonded by an ether bond, an ester bond, a urethane bond, a carbonate bond, or the like. For example, when an unsaturated group is introduced by an ether bond, -OM (M is preferably Na or K) is generated by metal-oxygenation at the hydroxyl terminal of the polyoxyalkylene polymer, and then the general formula (6):
CH2= CH-RThree-X2 (6)
Or general formula (7):
CH2= C (RFour-RThree-X2 (7)
(Where RThree, RFourIs the same as above. X2Is a method of reacting an unsaturated group-containing compound represented by (halogen atom).
[0028]
Specific examples of the unsaturated group-containing compound represented by the general formula (6) or (7) include CH2= CH-CH2-Cl, CH2= CH-CH2-Br, CH2= CH-C2HFour-Cl, CH2= CH-C2HFour-Br, CH2= CH-CThreeH6-Cl, CH2= CH-CThreeH6-Br, CH2= C (CHThree) -CH2-Cl, CH2= C (CHThree) -CH2-Br, CH2= C (CH2CHThree) -CH2-Cl, CH2= C (CH2CHThree) -CH2-Br, CH2= C (CH2CH (CHThree)2) -CH2-Cl, CH2= C (CH2CH (CHThree)2) -CH2-Br, etc., especially from the point of reactivity, CH2= CH-CH2-Cl, CH2= C (CHThree) -CH2-Cl is preferred.
[0029]
As other methods for introducing unsaturated groups, CH2= CH-CH2-Group or CH2= C (CHThree) -CH2An isocyanate compound having a group or the like, a carboxylic acid, or an epoxy compound can also be used.
[0030]
As the group 8 transition metal catalyst, a metal complex catalyst selected from group 8 transition metal elements such as platinum, rhodium, cobalt, palladium and nickel is effectively used. For example, H2PtCl6・ 6H2O, platinum-vinylsiloxane complex, platinum-olefin complex, Pt metal, RhCl (PPhThree)Three, RhClThree, Rh / Al2OThree, RuClThree, IrClThree, FeClThree, PdCl2・ 2H2O, NiCl2Can be used, but from the viewpoint of hydrosilylation reactivity, H2PtCl6・ 6H2O, platinum-vinylsiloxane complex, or platinum-olefin complex is particularly preferable.
[0031]
Such a production method is described in, for example, Japanese Patent No. 1396791, Japanese Patent No. 1727750, Japanese Patent No. 21355751, and JP-A-3-72527.
[0032]
Although there is no restriction | limiting in particular in the molecular weight of a polyoxyalkylene type polymer, It is preferable that the number average molecular weights in polystyrene conversion in GPC (Tosoh Corporation HLC-8120GPC, THF solvent) are 500-100,000. Furthermore, it is preferable that it is 1,000-70,000 from points, such as the ease of handling. When the number average molecular weight is less than 500, the cured product becomes brittle, and when the number average molecular weight exceeds 100,000, the viscosity of the polymer becomes too high.
[0033]
The epoxy resin which is the component (B) of the present invention may be a compound containing an average of one or more epoxy groups in the molecule that is usually used, and in particular, an average of one or more in the molecule from the viewpoint of adhesiveness. Those having a glycidyl group such as a glycidyl ether group, a glycidyl ester group and a glycidylamino group are preferred.
[0034]
The epoxy resin having a glycidyl ether group is obtained by converting a phenol or alcoholic hydroxyl group into a glycidyl ether by a known method. For example, resorcinol, hydroquinone, pyrocatechol, phloroglicinol, dihydroxynaphthalene, biphenol, methylene bisphenol. (Bisphenol F), methylene bis (orthocresol), ethylidene bisphenol, isopropylidene bisphenol (bisphenol A), isopropylidene bis (orthocresol), tetrabromobisphenol A, bis (hydroxyphenyl) phenylmethane, bis (hydroxyphenyl) cyclohexylmethane Cyclohexylidene bisphenol, thiobisphenol, sulfobisphenol (bisphenol S), Polyglycidyl ethers of mononuclear or polynuclear polyphenols such as xylbisphenol and phenol-formaldehyde condensates, and ethylene glycol, propylene glycol, butylene glycol, hexanediol, polyglycol, thiodiglycol, glycerin, trimethylolpropane, penta Examples include glycidyl ethers of polyhydric alcohols such as erythritol, sorbitol, bisphenol A-ethylene oxide adduct, and bisphenol A-propylene oxide adduct.
[0035]
Examples of the epoxy resin having a glycidyl ester group include maleic acid, fumaric acid, itaconic acid, succinic acid, glutaric acid, adipic acid, suberic acid, azelaic acid, sebacic acid, dimer acid, trimer acid, phthalic acid, and isophthalic acid. Glycidyl esters of aliphatic, aromatic or alicyclic polybasic acids such as acids, terephthalic acid, trimellitic acid, trimesic acid, pyromellitic acid, tetrahydrophthalic acid, hexahydrophthalic acid, endomethylenetetrahydrophthalic acid, and the like, and A homopolymer or copolymer of glycidyl methacrylate can be used.
[0036]
Examples of the epoxy resin having a glycidylamino group include N, N-diglycidylaniline, tetraglycidyldiaminodiphenylmethane, and the like.
[0037]
These epoxy resins may be used alone or in combination of two or more. Among epoxy resins, bisphenol A type epoxy resins are preferred from the viewpoint of balance between workability, curability, oil surface adhesion, adhesive strength, and the like.
[0038]
Such an epoxy resin is usually used in an amount of 1 to 80 parts by weight, preferably 2 to 70 parts by weight, per 100 parts by weight of component (A). If the amount of the epoxy resin used is less than 1 part by weight, sufficient oil level adhesion cannot be obtained, and if it exceeds 80 parts by weight, the compatibility is lowered and the adhesiveness is lowered.
[0039]
As the silanol condensation catalyst as the component (C) of the present invention, conventionally known ones can be widely used. For example, titanates such as tetrabutyl titanate and tetrapropyl titanate; dibutyltin dilaurate, bis (dibutyltin laurate) oxide, Organotin compounds such as dibutyltin malate, dibutyltin diacetate, tin octylate, tin naphthenate, reaction product of dibutyltin oxide and phthalate, reaction product of dibutyltin oxide and maleate, dibutyltin bisacetylacetonate; Organoaluminum compounds such as aluminum trisacetylacetonate, aluminum trisethylacetoacetate, diisopropoxyaluminum ethylacetoacetate; zirconium tetraacetylacetonate Chelate compounds such as titanium tetraacetylacetonate; lead octylate; amine compounds such as octylamine, laurylamine, monoethanolamine, cyclohexylamine, or salts of these amine compounds with carboxylic acids, etc .; acidic phosphate esters; acidic Reaction product of phosphate ester and amine; saturated or unsaturated polyvalent carboxylic acid or anhydride thereof; low molecular weight polyamide resin obtained from excess polyamine and polybasic acid; reaction product of excess polyamine and epoxy compound And known silanol condensation catalysts such as other acidic catalysts and basic catalysts. These catalysts may be used alone or in combination of two or more.
[0040]
Such a silanol condensation catalyst is usually used in an amount of 1 to 15 parts by weight, preferably 2 to 10 parts by weight, per 100 parts by weight of component (A). If it is less than 1 part by weight, the curability of the composition is lowered, and if it exceeds 15 parts by weight, storage stability and adhesiveness are lowered, which is not preferable. In particular, tetravalent organotin compounds are preferred from the viewpoint of curing speed and storage stability.
[0041]
Although it does not specifically limit as a ketimine compound which is (D) component of this invention, when a typical thing is shown, for example, General formula (8):
-N = CRFiveR6 (8)
(Where RFive, R6Are the same or different and include compounds having at least one group represented by an alkyl group, a cycloalkyl group, or an aryl group in one molecule.
[0042]
The amine compound used for producing the above compound may be any of aliphatic, alicyclic, aromatic, polyether, polyamide, and reactive silicon group-containing systems. Specifically, aliphatic polyamines such as ethylenediamine, propylenediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, 1,3-diaminocyclohexane, 1,4-diaminocyclohexane, bis (4-amino Cyclohexyl) methane, bis (4-amino-3-methylcyclohexyl) methane, isophoronediamine, norbornanediamine and other alicyclic polyamines, diaminodiphenylmethane, m-phenylenediamine, m-xylylenediamine and other aromatic polyamines, Polyether amines such as polyoxypropylene diamine and polyoxypropylene triamine, polyamide amines having an amino group at the molecular end of polyamide, γ-aminopropyltrimethoxysilane, γ Examples include reactive silicon group-containing amines such as aminopropyltriethoxysilane, γ-aminopropylmethyldimethoxysilane, and γ- (2-aminoethyl) aminopropyltriethoxysilane.
[0043]
The ketones used to ketiminate the polyamine compound are not particularly limited. For example, acetone, methyl ethyl ketone, diethyl ketone, methyl isopropyl ketone, diisopropyl ketone, methyl isobutyl ketone, methyl t-butyl ketone, diisobutyl ketone. , Cyclohexanone, cyclopentanone, benzophenone, and the like.
[0044]
When a polyvalent aliphatic polyamine is used, the activity can be lowered by reacting various epoxy compounds with the imino group remaining after the ketimination reaction. Specific examples of the epoxy compound include butyl glycidyl ether, dodecyl glycidyl ether, phenyl glycidyl ether, and cresyl glycidyl ether.
[0045]
Such a ketimine compound is usually used in an amount of 1 to 70 parts by weight, preferably 2 to 60 parts by weight per 100 parts by weight of component (A). If it is less than 1 part by weight, the composition will be insufficiently cured and the oil surface adhesion will be reduced, and if it exceeds 70 parts by weight, storage stability will be lowered.
[0046]
The heavy calcium carbonate treated with the fatty acid or salt thereof, or the resin acid or salt thereof, which is the component (E) of the present invention, is obtained by subjecting calcite type crystalline limestone to dry pulverization and classification or wet pulverization. What was contacted with fatty acid or its salt, or resin acid or its salt with respect to what was classified after that, what was classified after wet-grinding and dried can be used.
[0047]
Examples of the fatty acids or salts thereof, or resin acids or salts thereof include, for example, saturated fatty acids such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, alginic acid, and behenic acid, oleic acid, elaidic acid, linoleic acid, Unsaturated fatty acids such as ricinoleic acid, cyclic saturated fatty acids such as naphthenic acid, abietic acid, neoabietic acid, d-pimalic acid, benzoic acid, cinnamic acid, p-oxycinnamic acid and other resin acids, and their sodium, Examples thereof include potassium and ammonium salts.
[0048]
The above surface-treated heavy calcium carbonate can be dehydrated more easily than colloidal calcium carbonate, so that the storage stability of the composition can be improved, and since the particle size is large, the composition is low. Viscosity becomes easy and the protruding speed from the gun can be increased. When heavy calcium carbonate that has not been surface-treated is used instead of heavy calcium carbonate that has been surface-treated, the composition is altered during storage and the oil surface adhesion is lowered, which is not preferable.
[0049]
The heavy calcium carbonate subjected to such surface treatment is usually used in the range of 100 to 900 parts by weight, preferably in the range of 150 to 800 parts by weight with respect to 100 parts by weight of the component (A). If the amount is less than 100 parts by weight, sufficient strength and thixotropic properties may not be obtained. If the amount exceeds 900 parts by weight, the viscosity is increased and the adhesiveness is lowered.
[0050]
The curable composition of the present invention is added with a silane coupling agent, a thermally active epoxy resin curing agent, a filler, a thixotropic agent, a plasticizer, a diluent, a stabilizer, a colorant, or the like as necessary. be able to.
[0051]
Specific examples of the silane coupling agent include, for example, γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxysilane, γ-aminopropylmethyldimethoxysilane, γ-aminopropylmethyldiethoxysilane, γ- (2- Aminoethyl) aminopropyltrimethoxysilane, γ- (2-aminoethyl) aminopropylmethyldimethoxysilane, γ- (2-aminoethyl) aminopropyltriethoxysilane, γ- (2-aminoethyl) aminopropylmethyldiethoxy Amino groups such as silane, γ-ureidopropyltrimethoxysilane, N-phenyl-γ-aminopropyltrimethoxysilane, N-benzyl-γ-aminopropyltrimethoxysilane, N-vinylbenzyl-γ-aminopropyltriethoxysilane Containing silanes; γ Mercapto group-containing silanes such as mercaptopropyltrimethoxysilane, γ-mercaptopropyltriethoxysilane, γ-mercaptopropylmethyldimethoxysilane, γ-mercaptopropylmethyldiethoxysilane; γ-glycidoxypropyltrimethoxysilane, γ- Epoxy such as glycidoxypropyltriethoxysilane, γ-glycidoxypropylmethyldimethoxysilane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, β- (3,4-epoxycyclohexyl) ethyltriethoxysilane Group-containing silanes; β-carboxyethyltriethoxysilane, β-carboxyethylphenylbis (2-methoxyethoxy) silane, N-β- (carboxymethyl) aminoethyl-γ-aminopropyltrimethoxysilane, etc. Carboxysilanes: vinyl trimethoxysilane, vinyltriethoxysilane, γ-methacryloyloxypropylmethyldimethoxysilane, γ-acryloyloxypropyltrimethoxysilane, γ-acryloyloxypropyltriethoxysilane-containing silane Halogen-containing silanes such as γ-chloropropyltrimethoxysilane; isocyanurate silanes such as tris (trimethoxysilyl) isocyanurate; γ-isocyanatopropyltrimethoxysilane, γ-isocyanatopropyltriethoxysilane, γ-isocyanate Isocyanate group-containing silanes such as propylmethyldiethoxysilane and γ-isocyanatopropylmethyldimethoxysilane; (B) component epoxy resin and amino group-containing silanes And the reaction product of epoxy group-containing silanes and amino group-containing silanes. In addition, amino-modified silyl polymers, silylated amino polymers, unsaturated aminosilane complexes, blocked isocyanate silanes, phenylamino long-chain alkylsilanes, aminosilylated silicones, silylated polyesters, etc., which are derivatives of these, are also used as silane coupling agents. Can be used. These silane coupling agents may be used alone or in combination of two or more.
[0052]
Such a silane coupling agent is usually used in the range of 0.5 to 20 parts by weight, preferably in the range of 1 to 15 parts by weight with respect to 100 parts by weight of component (A). If the silane coupling agent is less than 0.5 parts by weight, the adhesiveness is lowered, and if it exceeds 20 parts by weight, the reactivity of the composition may be lowered. In particular, epoxy silanes are preferable from the viewpoint of storage stability and adhesiveness.
[0053]
Specific examples of the thermally active epoxy resin curing agent include acid anhydrides such as tetrahydrophthalic anhydride, methyltetrahydrophthalic anhydride, methyl nadic anhydride, hexahydrophthalic anhydride, and dodecyl succinic anhydride; Examples include imidazoles such as methylimidazole, 2-ethyl-4-methylimidazole, 2-undecylimidazole, 2-heptadecylimidazole, and 2-phenylimidazole; dicyandiamide and the like.
[0054]
Such a thermally active epoxy resin curing agent is not necessarily added, but when added, it is usually in the range of 1 to 70 parts by weight, preferably 2 to 60 parts by weight per 100 parts by weight of component (B). It is good to be used in the range. If the amount of the heat-activatable epoxy resin curing agent used is less than 1 part by weight, the epoxy resin may be insufficiently cured during heating, and if it exceeds 70 parts by weight, the adhesiveness decreases due to bleeding to the interface. Since there are cases, it is not preferable.
[0055]
Specific examples of the filler include, for example, colloidal calcium carbonate, heavy calcium carbonate (where the surface is not treated, or treated with a treatment agent other than fatty acid or salt thereof, or resin acid or salt thereof) ), Magnesium carbonate, titanium oxide, carbon black, fused silica, precipitated silica, diatomaceous earth, white clay, kaolin, clay, talc, wood powder, walnut shell powder, rice husk powder, silicic anhydride, quartz powder, aluminum powder , Zinc powder, asbestos, glass fiber, carbon fiber, glass beads, alumina, glass balloon, shirasu balloon, silica balloon, silicon oxide and other inorganic fillers, pulp, cotton chips and other wooden fillers, acrylic resin powder, urethane Examples of organic fillers include hollow bodies such as resin powder, powder rubber, recycled rubber, and polyethylene.These fillers may be used alone or in combination of two or more.
[0056]
Such a filler does not necessarily need to be added, but when added, it is usually used in the range of 10 to 500 parts by weight, preferably in the range of 20 to 400 parts by weight per 100 parts by weight of component (A). Is good. If the amount of the filler used is less than 10 parts by weight, the thixotropy of the composition may be insufficient, and if it exceeds 500 parts by weight, the viscosity increases and the projectability of the composition decreases, which is not preferable.
[0057]
Specific examples of the thixotropic agent include hydrogenated castor oil, organic amide wax, organic bentonite, and calcium stearate. These thixotropic agents may be used alone or in combination of two or more.
[0058]
Such a thixotropic agent may be used in the range of 0.1 to 50 parts by weight, preferably 1 to 30 parts by weight per 100 parts by weight of component (A). If the amount of the thixotropic agent used is less than 0.1 parts by weight, sufficient thixotropy may not be obtained, and if it exceeds 50 parts by weight, it is not preferable from the viewpoint of cost increase.
[0059]
Specific examples of the plasticizer include phthalates such as dioctyl phthalate, dibutyl phthalate, and butyl benzyl phthalate; aliphatic dibasic esters such as dioctyl adipate, isodecyl succinate, and dibutyl sebacate; diethylene glycol dibenzoate Glycol esters such as pentaerythritol ester; aliphatic esters such as butyl oleate and methyl acetylricinoleate; phosphate esters such as tricresyl phosphate, trioctyl phosphate and octyl diphenyl phosphate, epoxidized soybean oil, epoxy Epoxy plasticizers such as modified linseed oil and epoxy benzyl stearate; polyester plasticizers such as polyesters of dibasic acids and dihydric alcohols; polyethers such as polypropylene glycol and its derivatives ; Paraffinic hydrocarbons, naphthenic hydrocarbons, paraffin - hydrocarbon-based plasticizer such as naphthenic mixed hydrocarbon; chlorinated paraffins and the like. These plasticizers may be used alone or in combination of two or more.
[0060]
Such a plasticizer is usually used in a range of 10 to 300 parts by weight, preferably 20 to 250 parts by weight, per 100 parts by weight of component (A). If the amount of plasticizer used is less than 10 parts by weight, the viscosity of the composition may be too high, and if it exceeds 300 parts by weight, the plasticizer may ooze out from the cured product. It is not preferable.
[0061]
Sealing materials and adhesives used in vehicle applications are usually applied manually or automatically using a gun, but if the viscosity is too high, the projecting ability from the gun will decrease, and the working speed may decrease. It is not preferable. Accordingly, the viscosity of the curable composition is preferably 300 Pa · s or less. In addition, the viscosity as used in the field of this invention is the value measured on condition of 10 rpm, No. 7 rotor, and 23 degreeC using the BH type viscometer.
[0062]
The curable composition of the present invention has moderate workability, curability, adhesiveness to electrodeposited steel sheets, and adhesiveness to oil-surfaced steel sheets, and thus has a wide range as, for example, vehicle sealing materials and adhesives. Can be used for
[0063]
【Example】
In order to further clarify the present invention, specific examples will be described below, but the present invention is not limited thereto.
(Synthesis Example 1)
80 parts by weight of polypropylene glycol each having a number average molecular weight of 3,000 and 20 parts by weight of polypropylene triol were used as initiators, 13 parts by weight of sodium methoxide (28% methanol solution) was added, and methanol was distilled off. Next, after adding 2.2 parts by weight of dichloromethane, 4.4 parts by weight of sodium methoxide (28% methanol solution) was added again to distill off the methanol, and then 2.7 weights of 3-chloro-1-propene. Part was added to obtain a polymer having an allyl group at the terminal. To 100 parts by weight of this polymer, chloroplatinic acid hexahydrate (5% by weight isopropanol solution) 6 × 10-3After adding parts by weight, 2.1 parts by weight of methyldimethoxysilane was added and reacted at 90 ° C. for 2 hours. The number average molecular weight of the obtained polymer was 18,000 as measured by GPC (Polymer A).
(Synthesis Example 2)
After mixing 100 parts by weight of polyoxypropylene glycol having a number average molecular weight of about 5,200 and 6.28 parts by weight of isophorone diisocyanate, 0.1 part by weight of a tin catalyst (10% dioctyl phthalate solution of dibutyltin dilaurate) is added, The reaction was carried out at 80 ° C. for 4 hours. When the titration of the isocyanate group was performed, it was 0.579%. The molecular weight determined from this was about 15,000. After cooling to 60 ° C., 1.0 equivalent of γ-aminopropyltrimethoxysilane was added to the isocyanate group and stirred for about 30 minutes. As a result of measuring IR, it was confirmed that the isocyanate group disappeared. (Polymer B).
(Preparation of curable composition)
Various compounding materials having the composition shown in Table 1 were kneaded with a 5 L universal mixer (5DMV-r type manufactured by Dalton Co.), and the one-component curable compositions of Examples 1-9 and Comparative Examples 1-9. Was made.
(Evaluation of the physical properties)
Evaluation was performed on the following items.
Workability
With the BH viscometer, rotor No. 7 was used, and the measurement was carried out under the condition of a rotation speed of 10 rpm in a 23 ° C. atmosphere. The case where the viscosity was 300 Pa · s or less was rated as ◯, and the case where the viscosity exceeded 300 Pa · s was rated as x.
Adhesiveness
A curable composition was applied in a bead shape to a cold-rolled steel sheet coated with rust-preventing oil (dull finish type described in JIS G3141) and a cationic electrodeposited steel sheet, and then cured for 7 days in an atmosphere at 23 ° C to peel off the cured product. The adhesion state was observed. The case where the cured product remained on the steel plate side was marked with ◯, and the case where the cured product did not remain was marked with ×.
[0064]
The evaluation results are shown in Table 1.
[0065]
[Table 1]
The curable compositions of the examples had low viscosity and good workability, and showed good adhesion to oil-surfaced steel sheets and electrodeposited steel sheets. On the other hand, in the comparative example, a system excellent in balance between workability and adhesiveness was not found.
[0066]
【The invention's effect】
According to the present invention, it is possible to obtain a curable composition suitable for use in a vehicle having good workability without containing a vinyl chloride resin and having excellent adhesion to oil-surfaced steel sheets and electrodeposited steel sheets.
Claims (5)
−(Si(R1 2−b )(Xb)O)mSi(R2 3−a )Xa (1)
(式中R1およびR2は、同一または異なり、炭素数1から20のアルキル基、炭素数6から20のアリール基、炭素数7から20のアラルキル基、または(R’)3SiO−で示されるトリオルガノシロキシ基を示し、R1またはR2が2個以上存在する場合は、それらは同一であっても異なっていてもよい。ここでR’は炭素数が1から20の1価の炭化水素基であり、3個のR’は同一であっても異なっていてもよい。Xは水酸基または加水分解性基を示し、Xが2個以上存在する時、それらは同一であっても異なっていてもよい。aは0、1、2または3を、bは0、1または2をそれぞれ示し、a+Σb≧2を満足するものとする。またm個の−Si(R1 2−b )(Xb)O−基におけるbについて、それらは同一であっても異なっていてもよい。mは0から19の整数を示す。)で表されることを特徴とする請求項1記載の油面鋼板接着用硬化性組成物。The reactive silicon group in the polyoxyalkylene polymer as the component (A) is represented by the general formula (1):
- (Si (R 1 2- b) (X b) O) m Si (R 2 3-a) X a (1)
(Wherein R 1 and R 2 are the same or different and are each an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or (R ′) 3 SiO— In the case where two or more R 1 or R 2 are present, they may be the same or different, where R ′ is a monovalent group having 1 to 20 carbon atoms. And three R's may be the same or different, and X represents a hydroxyl group or a hydrolyzable group, and when two or more Xs are present, they are the same. A is 0, 1, 2 or 3, b is 0, 1 or 2, and a + Σb ≧ 2 is satisfied, and m pieces of —Si (R 1 2− b ) in the (X b ) O— group, even though they are the same The curable composition for adhesion to oil level steel sheets according to claim 1, wherein m represents an integer of 0 to 19.
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