JP6735598B2 - Fast-curing urethane waterproof material composition and construction method - Google Patents
Fast-curing urethane waterproof material composition and construction method Download PDFInfo
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- JP6735598B2 JP6735598B2 JP2016092751A JP2016092751A JP6735598B2 JP 6735598 B2 JP6735598 B2 JP 6735598B2 JP 2016092751 A JP2016092751 A JP 2016092751A JP 2016092751 A JP2016092751 A JP 2016092751A JP 6735598 B2 JP6735598 B2 JP 6735598B2
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- JP
- Japan
- Prior art keywords
- waterproof material
- component
- curing agent
- material composition
- acid anhydride
- Prior art date
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- 239000000463 material Substances 0.000 title claims description 98
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 title claims description 70
- 239000000203 mixture Substances 0.000 title claims description 53
- 238000010276 construction Methods 0.000 title claims description 37
- 239000003795 chemical substances by application Substances 0.000 claims description 112
- 150000008065 acid anhydrides Chemical class 0.000 claims description 72
- 229920005862 polyol Polymers 0.000 claims description 46
- 150000003077 polyols Chemical class 0.000 claims description 44
- 125000003118 aryl group Chemical group 0.000 claims description 41
- 229920000768 polyamine Polymers 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 26
- 239000004014 plasticizer Substances 0.000 claims description 25
- PISLZQACAJMAIO-UHFFFAOYSA-N 2,4-diethyl-6-methylbenzene-1,3-diamine Chemical compound CCC1=CC(C)=C(N)C(CC)=C1N PISLZQACAJMAIO-UHFFFAOYSA-N 0.000 claims description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 21
- 239000001257 hydrogen Substances 0.000 claims description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims description 21
- 239000011256 inorganic filler Substances 0.000 claims description 16
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 16
- 238000004078 waterproofing Methods 0.000 claims description 16
- 239000012948 isocyanate Substances 0.000 claims description 12
- 150000002513 isocyanates Chemical group 0.000 claims description 12
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 8
- YZZTZUHVGICSCS-UHFFFAOYSA-N n-butan-2-yl-4-[[4-(butan-2-ylamino)phenyl]methyl]aniline Chemical compound C1=CC(NC(C)CC)=CC=C1CC1=CC=C(NC(C)CC)C=C1 YZZTZUHVGICSCS-UHFFFAOYSA-N 0.000 claims description 7
- 230000000052 comparative effect Effects 0.000 description 37
- HGXVKAPCSIXGAK-UHFFFAOYSA-N 2,4-diethyl-6-methylbenzene-1,3-diamine;4,6-diethyl-2-methylbenzene-1,3-diamine Chemical compound CCC1=CC(CC)=C(N)C(C)=C1N.CCC1=CC(C)=C(N)C(CC)=C1N HGXVKAPCSIXGAK-UHFFFAOYSA-N 0.000 description 35
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 32
- -1 comb spatula Substances 0.000 description 30
- 239000011248 coating agent Substances 0.000 description 26
- 238000000576 coating method Methods 0.000 description 26
- 238000002156 mixing Methods 0.000 description 20
- 230000000704 physical effect Effects 0.000 description 18
- 229920001451 polypropylene glycol Polymers 0.000 description 17
- 235000010216 calcium carbonate Nutrition 0.000 description 16
- 239000000126 substance Substances 0.000 description 16
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 description 15
- 229910000019 calcium carbonate Inorganic materials 0.000 description 15
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical compound C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 description 13
- 241001112258 Moca Species 0.000 description 12
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 description 11
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 11
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 150000002009 diols Chemical class 0.000 description 9
- LAIUFBWHERIJIH-UHFFFAOYSA-N 3-Methylheptane Chemical compound CCCCC(C)CC LAIUFBWHERIJIH-UHFFFAOYSA-N 0.000 description 8
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 8
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000009257 reactivity Effects 0.000 description 8
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- 125000003277 amino group Chemical group 0.000 description 7
- 238000004132 cross linking Methods 0.000 description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 7
- 239000005056 polyisocyanate Substances 0.000 description 7
- 229920001228 polyisocyanate Polymers 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 229940014800 succinic anhydride Drugs 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- FKBMTBAXDISZGN-UHFFFAOYSA-N 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1C(C)CCC2C(=O)OC(=O)C12 FKBMTBAXDISZGN-UHFFFAOYSA-N 0.000 description 6
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 150000003512 tertiary amines Chemical class 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 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 4
- OEMSKMUAMXLNKL-UHFFFAOYSA-N 5-methyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C(C)=CCC2C(=O)OC(=O)C12 OEMSKMUAMXLNKL-UHFFFAOYSA-N 0.000 description 4
- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 description 4
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 208000019651 NDE1-related microhydranencephaly Diseases 0.000 description 4
- XQBCVRSTVUHIGH-UHFFFAOYSA-L [dodecanoyloxy(dioctyl)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCCCCCC)(CCCCCCCC)OC(=O)CCCCCCCCCCC XQBCVRSTVUHIGH-UHFFFAOYSA-L 0.000 description 4
- 238000007259 addition reaction Methods 0.000 description 4
- 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 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- SVNWKKJQEFIURY-UHFFFAOYSA-N 2-methyl-1-(2-methylpropyl)imidazole Chemical compound CC(C)CN1C=CN=C1C SVNWKKJQEFIURY-UHFFFAOYSA-N 0.000 description 3
- XPEKVUUBSDFMDR-UHFFFAOYSA-N 4-methyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound CC1C=CCC2C(=O)OC(=O)C12 XPEKVUUBSDFMDR-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 229920006311 Urethane elastomer Polymers 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 3
- SHZIWNPUGXLXDT-UHFFFAOYSA-N caproic acid ethyl ester Natural products CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- FLISWPFVWWWNNP-BQYQJAHWSA-N dihydro-3-(1-octenyl)-2,5-furandione Chemical compound CCCCCC\C=C\C1CC(=O)OC1=O FLISWPFVWWWNNP-BQYQJAHWSA-N 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920005906 polyester polyol Polymers 0.000 description 3
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 3
- IFNXAMCERSVZCV-UHFFFAOYSA-L zinc;2-ethylhexanoate Chemical compound [Zn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O IFNXAMCERSVZCV-UHFFFAOYSA-L 0.000 description 3
- KMOUUZVZFBCRAM-UHFFFAOYSA-N 1,2,3,6-tetrahydrophthalic anhydride Chemical compound C1C=CCC2C(=O)OC(=O)C21 KMOUUZVZFBCRAM-UHFFFAOYSA-N 0.000 description 2
- NNOZGCICXAYKLW-UHFFFAOYSA-N 1,2-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=CC=C1C(C)(C)N=C=O NNOZGCICXAYKLW-UHFFFAOYSA-N 0.000 description 2
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical class O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 2
- OVBFMEVBMNZIBR-UHFFFAOYSA-N 2-methylvaleric acid Chemical compound CCCC(C)C(O)=O OVBFMEVBMNZIBR-UHFFFAOYSA-N 0.000 description 2
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- AOFIWCXMXPVSAZ-UHFFFAOYSA-N 4-methyl-2,6-bis(methylsulfanyl)benzene-1,3-diamine Chemical compound CSC1=CC(C)=C(N)C(SC)=C1N AOFIWCXMXPVSAZ-UHFFFAOYSA-N 0.000 description 2
- QXBYUPMEYVDXIQ-UHFFFAOYSA-N 4-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound CC1CCCC2C(=O)OC(=O)C12 QXBYUPMEYVDXIQ-UHFFFAOYSA-N 0.000 description 2
- LQOPXMZSGSTGMF-UHFFFAOYSA-N 6004-79-1 Chemical compound C1CC2C3C(=O)OC(=O)C3C1C2 LQOPXMZSGSTGMF-UHFFFAOYSA-N 0.000 description 2
- 206010007269 Carcinogenicity Diseases 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000007942 carboxylates Chemical class 0.000 description 2
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 230000007670 carcinogenicity Effects 0.000 description 2
- 231100000260 carcinogenicity Toxicity 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- OZEHOHQZIRILDX-UHFFFAOYSA-N ctk1b7797 Chemical compound O=C1OC(=O)C2C1C1(C)CC2CC1 OZEHOHQZIRILDX-UHFFFAOYSA-N 0.000 description 2
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 2
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
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- 238000009472 formulation Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 2
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- 230000001771 impaired effect Effects 0.000 description 2
- 150000007529 inorganic bases Chemical class 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-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
- 239000002075 main ingredient Substances 0.000 description 2
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- 238000002360 preparation method Methods 0.000 description 2
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- WYVAMUWZEOHJOQ-UHFFFAOYSA-N propionic anhydride Chemical compound CCC(=O)OC(=O)CC WYVAMUWZEOHJOQ-UHFFFAOYSA-N 0.000 description 2
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- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 2
- OLQWMCSSZKNOLQ-ZXZARUISSA-N (3s)-3-[(3r)-2,5-dioxooxolan-3-yl]oxolane-2,5-dione Chemical compound O=C1OC(=O)C[C@H]1[C@@H]1C(=O)OC(=O)C1 OLQWMCSSZKNOLQ-ZXZARUISSA-N 0.000 description 1
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- GIWQSPITLQVMSG-UHFFFAOYSA-N 1,2-dimethylimidazole Chemical compound CC1=NC=CN1C GIWQSPITLQVMSG-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- FBHPRUXJQNWTEW-UHFFFAOYSA-N 1-benzyl-2-methylimidazole Chemical compound CC1=NC=CN1CC1=CC=CC=C1 FBHPRUXJQNWTEW-UHFFFAOYSA-N 0.000 description 1
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 description 1
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- SXFJDZNJHVPHPH-UHFFFAOYSA-N 3-methylpentane-1,5-diol Chemical compound OCCC(C)CCO SXFJDZNJHVPHPH-UHFFFAOYSA-N 0.000 description 1
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- KZTROCYBPMKGAW-UHFFFAOYSA-N 4-[[4-amino-3,5-di(propan-2-yl)phenyl]methyl]-2,6-di(propan-2-yl)aniline Chemical compound CC(C)C1=C(N)C(C(C)C)=CC(CC=2C=C(C(N)=C(C(C)C)C=2)C(C)C)=C1 KZTROCYBPMKGAW-UHFFFAOYSA-N 0.000 description 1
- ALYNCZNDIQEVRV-UHFFFAOYSA-M 4-aminobenzoate Chemical compound NC1=CC=C(C([O-])=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-M 0.000 description 1
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Landscapes
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Polyurethanes Or Polyureas (AREA)
- Paints Or Removers (AREA)
- Sealing Material Composition (AREA)
Description
本発明は、速硬化性2液型ウレタン防水材組成物、ウレタン防水材組成物キットおよび2液型ウレタン防水材組成物の施工方法に関する。 The present invention relates to a quick-curing two-component urethane waterproof material composition, a urethane waterproof material composition kit, and a method for applying a two-component urethane waterproof material composition.
2液型ウレタン防水材は、不定形状および狭小部分の施工に適し経済性にも優れているためベランダ、庇の防水をはじめコンクリート系建築物の屋上防水にも幅広く採用されており、我が国独自の発展を遂げてきた。
2液型ウレタン防水材は、施工現場で主剤、硬化剤の2液を攪拌機で数分間混合した後、金コテ、くしベラ、ゴムベラ、ローラー、刷毛などで塗布し施工されるが、2液の混合開始と同時に硬化反応は始まり、徐々に粘度が上昇しある程度の時間施工しやすい低粘度状態(以下、可使時間と称す)を経た後、施工が困難なほどの高粘度となり硬化していく。可使時間は通常23℃での粘度が60,000mPa・sになるまでの時間を指標として用い、少なくとも30分程度以上が好ましいとされている。
The two-component urethane waterproof material is suitable for construction of irregular shapes and narrow areas and has excellent economical efficiency, so it is widely used not only for the waterproofing of balconies and eaves but also for the rooftop waterproofing of concrete-based buildings. Has made progress.
The two-component urethane waterproof material is applied by mixing two liquids of the main agent and curing agent at the construction site with an agitator for a few minutes and then applying it with a metal iron, comb spatula, rubber spatula, roller, brush, etc. The curing reaction starts at the same time as the mixing starts, the viscosity gradually rises, and after a low viscosity state (hereinafter referred to as the pot life) in which it is easy to apply for some time, it becomes a high viscosity that makes it difficult to apply and hardens. .. It is generally said that the pot life is preferably at least about 30 minutes or more, using the time until the viscosity at 23° C. reaches 60,000 mPa·s as an index.
塗布作業において可使時間は長いほど好ましいが、一般的には可使時間を長くしようとすると硬化性が悪くなり、次工程を実施するために塗膜上に作業員が乗れるまでの時間(以下、施工可能時間と称す)も長くなってしまう。通常の作業では、ウレタン防水材を夕方に塗布し終わり、翌日朝には施工可能状態となることが望まれており、施工可能時間は年間を通して17時間程度以内に調整できることが好ましいとされている。
夏季の施工においては材料の温度は35℃程度まで上昇し反応性が高まるため、30分の可使時間を確保するには相応の配合技術が必要とされ、一方冬季においては、材料温度は5℃程度まで下がり反応性が低下するため、可使時間の確保は比較的容易となるが、翌朝までに施工可能とするにはやはり相応の配合技術が必要となる。従って、2液型ウレタン防水材は、夏用と冬用の少なくとも二種類の配合を用意し、各季節に応じた可使時間と硬化時間を確保するのが一般的である。
The longer the pot life is, the more preferable it is in the coating work, but in general, when the pot life is made longer, the curability deteriorates, and the time until the worker can ride on the coating film to carry out the next step (below , Which is also called the workable time) becomes longer. In normal work, it is desired that the urethane waterproof material be applied in the evening and be ready for work the next morning, and it is preferable that the workable time can be adjusted within about 17 hours throughout the year. ..
In summer construction, the temperature of the material rises to around 35°C and the reactivity increases, so a suitable blending technique is required to secure a pot life of 30 minutes, while in winter the material temperature is 5 Since the temperature drops to around ℃ and the reactivity decreases, it is relatively easy to secure the pot life, but a suitable blending technique is still necessary to be able to work by the next morning. Therefore, it is general to prepare at least two kinds of two-pack type urethane waterproof materials for summer and winter so as to secure a pot life and a curing time according to each season.
現在汎用化されている2液型ウレタン防水材は、トリレンジイソシアナート(以下、TDIと称す)とポリオキシプロピレンポリオールからなるイソシアナート基末端プレポリマーを主剤とし、一方の硬化剤中に、活性水素成分として比較的反応が穏やかな芳香族ポリアミンである、3,3′−ジクロロ−4,4′−ジアミノジフェニルメタン(以下MOCAと称す)を主成分として用い、低反応性の2級ポリオールであるポリオキシプロピレンポリオールを併用している。その際、硬化剤中には促進剤として、水分よりもポリオールとの反応を選択的に促進することで発泡防止効果があるとされるカルボン酸鉛を用いるのが一般的であり、このような防水材はMOCA架橋型防水材と称されている。 The two-component urethane waterproofing material that is currently in widespread use is mainly composed of an isocyanate group-terminated prepolymer composed of tolylene diisocyanate (hereinafter referred to as TDI) and polyoxypropylene polyol. It is a low-reactivity secondary polyol using 3,3′-dichloro-4,4′-diaminodiphenylmethane (hereinafter referred to as MOCA), which is an aromatic polyamine having a relatively mild reaction as a hydrogen component, as a main component. It also uses polyoxypropylene polyol. At that time, it is common to use lead carboxylate as a promoter in the curing agent, which is said to have a foaming-preventing effect by selectively promoting the reaction with the polyol rather than moisture. The waterproof material is called a MOCA cross-linked waterproof material.
MOCA架橋型防水材は反応性が穏やかであるため、特に可使時間が必要とされる夏季の施工性に優れており、また比較的機械的強度も良好であるため、今でも汎用防水材として用いられている。一方、MOCA架橋型防水材は低温時の硬化性が悪いため、促進剤の鉛化合物を多目に配合するのが一般的であるが、低温硬化性の改善には限界があり、さらに鉛化合物を多く配合することで耐熱劣化が促進されるという問題点も発現する。
また、2−エチルヘキサン酸のようなカルボン酸を促進剤として用いれば、MOCAとイソシアナートとの反応を促進するが、併用するポリオールとの反応は促進しないため、低温硬化性を改善するには限界がある。
Since the MOCA cross-linking type waterproof material has a mild reactivity, it has excellent workability especially in summer when pot life is required, and also has relatively good mechanical strength. It is used. On the other hand, since the MOCA crosslinkable waterproof material has poor curability at low temperatures, it is common to add a lead compound as an accelerator in a large amount. The problem that the heat deterioration is promoted by adding a large amount of the compound also occurs.
Further, when a carboxylic acid such as 2-ethylhexanoic acid is used as an accelerator, the reaction between MOCA and isocyanate is promoted, but the reaction with the polyol used in combination is not promoted, so that the low temperature curability is improved. There is a limit.
なお、MOCA架橋型防水材には環境面での大きな問題もある。硬化剤に用いられているMOCAは労働安全衛生法で特定化学物質第2類物質に指定されており、硬化剤には上限値の1%を超えて使用されているため、特定化学物質等障害予防規則(以下、特化則と称す)該当品となってしまう。またMOCAは、IARC(国際がん研究機関)による発がん性評価でグループ1(ヒトに対して発がん性を示す)に分類されている。
また、主剤に用いられているTDIも特定化学物質に指定されており、汎用品の主剤には遊離TDIが上限値の1%を超えて存在するため、主剤も特化則該当品となってしまい、製造時および施工時に種々の制約を受けることとなる。さらに、促進剤として用いるカルボン酸鉛化合物は、世界的に使用が厳しく制限されている材料であり、化学物質排出把握管理法(通称化管法)の特定第1種指定化学物質に指定されており、環境面からは使用を避けたい材料である。
In addition, the MOCA cross-linking waterproof material has a big environmental problem. The MOCA used as a curing agent is designated as a specified chemical substance class 2 substance by the Industrial Safety and Health Act, and since it is used in excess of 1% of the upper limit value as a curing agent, it may cause damage to specified chemical substances. Preventive rules (hereinafter referred to as special rules) are applicable products. Further, MOCA is classified into group 1 (which shows carcinogenicity to humans) by carcinogenicity evaluation by IARC (International Cancer Research Institute).
In addition, the TDI used in the main agent is also specified as a specific chemical substance, and free TDI is present in the general-purpose agent in excess of 1% of the upper limit value, so the main agent also complies with the special rules. Therefore, various restrictions are imposed during manufacturing and construction. Furthermore, the lead carboxylate compound used as a promoter is a material whose use is severely restricted worldwide, and is designated as a specified Class 1 designated chemical substance under the Chemical Substance Emission Control Law (commonly known as the tube transfer method). Therefore, it is a material that should be avoided from the environmental aspect.
2液型ウレタン防水材において、TDIプレポリマーに対し、MOCAより反応性が高く、環境面でも安全性が高いジエチルトルエンジアミン(以下DETDAと称す)を用いるDETDA架橋型防水材と称されるタイプも商品化されている。DETDA架橋型防水材は低温時にも硬化性が良いという特徴を持っているが、夏季の可使時間を確保するためには可塑剤を多く配合する必要がある。但し、可塑剤を多く使用し過ぎるとトップコートとの接着性低下や可塑剤の移行性増大といった問題が発生するため、使用量には限界がある。特殊なTDIを使用することにより可使時間を確保する方法(特許文献1)も提案されているが、まだ汎用化されるには至っていない。なお、DETDAは水分よりもかなり反応性が高いため、DETDAを主反応成分とする塗膜は、カルボン酸鉛なしでも発泡現象を抑制する効果がMOCA架橋型防水材より高いという長所がある。 In the two-component urethane waterproof material, a type called DETDA cross-linking waterproof material that uses diethyltoluenediamine (hereinafter referred to as DETDA), which has higher reactivity with TDI prepolymer than MOCA and is more environmentally safe, is also available. It has been commercialized. The DETDA cross-linking waterproof material is characterized by good curability even at low temperatures, but it is necessary to add a large amount of a plasticizer in order to secure a pot life in summer. However, if too much plasticizer is used, there will be problems such as reduced adhesion to the top coat and increased migration of plasticizer, so the amount used is limited. A method (Patent Document 1) of securing a working time by using a special TDI has also been proposed, but it has not yet been generalized. Since DETDA is much more reactive than water, a coating film containing DETDA as a main reaction component has an advantage that the effect of suppressing the foaming phenomenon is higher than that of the MOCA cross-linking waterproof material even without lead carboxylate.
また、DETDA架橋型防水材はMOCA架橋型防水材とは異なり、冬季に硬化促進剤を用いることにより硬化性をさらに良くすることはできるが、可使時間はやはり短くなるため施工性は悪くなってしまう。そのため、通常は硬化促進剤を用いないが、2−エチルヘキサン酸鉛のようなカルボン酸鉛化合物や2−エチルヘキサン酸のような低分子カルボン酸により硬化を速くすることはできる。尚、硬化促進剤は貯蔵安定性に問題が起こらないことより硬化剤側に配合するのが一般的であるが、第3成分として施工現場で添加することも行われている。施工現場で添加する場合は、施工時の気温に合わせて添加量を調整することができるという利便性はあるが、添加量が少量であるため配合ミスが発生しやすいという問題や保管・管理が難しいという問題もある。 Further, unlike the MOCA crosslinkable waterproof material, the DETDA crosslinkable waterproof material can be further improved in curability by using a curing accelerator in winter, but the workability is deteriorated because the pot life is also shortened. Will end up. Therefore, a curing accelerator is usually not used, but the curing can be accelerated by a lead carboxylate compound such as lead 2-ethylhexanoate or a low molecular weight carboxylic acid such as 2-ethylhexanoic acid. The curing accelerator is generally added to the curing agent side because it does not cause a problem in storage stability, but it is also added as a third component at the construction site. When adding at the construction site, it is convenient to be able to adjust the addition amount according to the temperature at the time of construction, but since the addition amount is small, there is a problem that mixing mistakes easily occur and storage and management. There is also the problem of difficulty.
尚、ウレタン防水材の塗膜性能は、JIS−A−6021において機械的強度のみならず、耐候性、耐熱性、耐酸性、耐アルカリ性などについても詳細が規定されており、このJIS規格を満たしたものでないと、官公庁などには採用されないのは勿論、商品として認められないのが現状である。 In addition, the coating film performance of the urethane waterproof material is specified in JIS-A-6021 in terms of not only mechanical strength but also weather resistance, heat resistance, acid resistance, alkali resistance, etc. If it is not used, it is not accepted as a product as a matter of course, not accepted by government agencies.
また、一般的なウレタン防水工法では、コンクリートなどの無機質系下地に対し、接着性を確保するためのプライマーを施し、プライマーが硬化した後にウレタン防水層の施工を行い、その後耐候性を確保するためにトップコートを塗布するのが一般的である。
また、比較的大面積の無機質系下地に対しては、各種通気緩衝シートを施工し、その上にウレタン防水材を塗布し、その後トップコートを塗布するという通気緩衝工法が普及している。
いずれの工法においても、ウレタン防水層は塗膜の欠陥を補い均一性を確保するために2回に分けて塗布し、最終的に2mm〜3mmの膜厚にするのが一般的であるが、ウレタン防水層を1回で1〜2mm施工した後にトップコートを塗布するという簡易工法もベランダ、庇、幅木といった施工部位に対してある程度普及している。
現状ではウレタン防水材を1層塗布すると、当日中には硬化しないため、翌日に2層目のウレタン防水材の塗布あるいはトップコートの塗布を行うのが通例であり、完成までの工期が長くなってしまうのがウレタン防水材の欠点とされている。さらに近年、気候の変動が激しくなる傾向があり、ウレタン防水材塗布後数時間で降雨に見舞われ未硬化のウレタン防水層が損傷を受けるという問題も多発している。
In addition, in the general urethane waterproofing method, a primer for securing adhesiveness is applied to an inorganic base such as concrete, a urethane waterproof layer is applied after the primer hardens, and then weather resistance is secured. It is common to apply a top coat on.
Further, for a relatively large area inorganic base material, various ventilation cushioning sheets are applied, a urethane waterproofing material is applied thereon, and then a top coat is applied.
In either method, it is general that the urethane waterproof layer is applied twice in order to compensate for defects in the coating film and ensure uniformity, and finally has a film thickness of 2 mm to 3 mm. A simple construction method in which a urethane waterproof layer is applied 1-2 mm at a time and then a top coat is applied is also widely used to some extent on the construction site such as a veranda, eaves, and skirting boards.
Currently, if one layer of urethane waterproof material is applied, it will not cure during the day, so it is customary to apply the second layer of urethane waterproof material or top coat the next day, which increases the construction period. It is said that the urethane waterproofing material has a drawback. Furthermore, in recent years, climate change tends to become severe, and there is a frequent problem that the uncured urethane waterproof layer is damaged due to rainfall within a few hours after application of the urethane waterproof material.
最近、建設労働者の不足が顕著となってきており、防水業界においてもより効率的で省力化のできる防水工法および防水材料が望まれている。特に、ウレタン防水材においては、小面積の施工でさえ3〜5日の工期が必要となり、天候が不順であればさらに大幅に工期が延長されてしまうという大きな課題が残されている。
さらに、夜間に降雨が予想される場合は日中が好天であってもウレタン防水材を塗布することができず、また無理して降雨前に施工したため降雨により塗膜が損傷してしまい、補修に多大な時間と労力を費やしてしまうという問題もある。
In recent years, the shortage of construction workers has become remarkable, and in the waterproofing industry, more efficient and labor-saving waterproofing methods and materials are desired. In particular, the urethane waterproof material requires a construction period of 3 to 5 days even for the construction of a small area, and if the weather is unfavorable, the construction period is further extended, which remains a big problem.
Furthermore, if rain is expected at night, it is not possible to apply urethane waterproofing material even in good weather during the day, and since it was forcibly applied before rain, the coating film was damaged by rain, There is also the problem of spending a great deal of time and effort on repairs.
施工後5時間程度で硬化し(施工可能)、当日中に次工程に移ることのできる防水材についても検討はされてきたが、硬化時間を短くすると可使時間も同時に短くしてしまい施工が難しくなるため、極小面積用あるいは補修用といった特殊な用途に限定されてしまい、汎用化するには至っていない。
特に、ウレタン防水材は23℃以下の低温時に硬化性が悪くなる傾向があり、常温から低温において当日中に硬化させることができ、しかも汎用防水材とほぼ同等の可使時間を有した施工性の良好なウレタン防水材が望まれている。
Although a waterproof material that hardens (applicable) in about 5 hours after construction and can be moved to the next process within the day has been examined, shortening the curing time shortens the working time at the same time Since it becomes difficult, it is limited to special applications such as extremely small areas or repairs, and it has not been generalized.
In particular, urethane waterproofing materials tend to have poor curability at low temperatures of 23°C or less, can be cured during the day at room temperature to low temperatures, and have workability equivalent to that of general-purpose waterproofing materials. A good urethane waterproof material is desired.
本発明は、TDIプレポリマーを主剤とするDETDA架橋型防水材において、潜在性を有する硬化促進剤を用いることで、常温時はもとより低温時においても、汎用の2液型ウレタン防水材と同等レベルの可使時間を有した上で、当日中に硬化させることができ次工程の施工をも可能にする、汎用性のある速硬化性防水材を提供できる。 INDUSTRIAL APPLICABILITY The present invention uses a latent curing accelerator in a DETDA cross-linking waterproof material containing a TDI prepolymer as a main component, so that it is at the same level as a general-purpose two-component urethane waterproof material not only at room temperature but also at low temperature. It is possible to provide a versatile quick-curing waterproof material that can be cured during the day while also having a pot life, and that enables the construction of the next step.
本件第1発明は、トリレンジイソシアナートとポリオールからなるイソシアナート基末端プレポリマーおよび硬化促進剤として酸無水物を含む主剤と、芳香族ポリアミン、可塑剤および無機充填剤を含む硬化剤とからなる2液型ウレタン防水材組成物であって、芳香族ポリアミンがジエチルトルエンジアミンを含むことを特徴とする。
本件第2発明は、トリレンジイソシアナートとポリオールからなるイソシアナート基末端プレポリマーを含む主剤パーツと、ジエチルトルエンジアミンを含む芳香族ポリアミン、可塑剤および無機充填剤を含む硬化剤パーツと、酸無水物を含む硬化促進剤パーツとからなるウレタン防水材組成物キット。
本件第3発明は、トリレンジイソシアナートとポリオールからなるイソシアナート基末端プレポリマーを含む主剤と、芳香族ポリアミン、可塑剤および無機充填剤を含む硬化剤とからなる2液型ウレタン防水材の施工方法であって、芳香族ポリアミンがジエチルトルエンジアミンを含み、硬化促進剤として酸無水物を含む第3成分を主剤にまたは主剤と硬化剤を混合するときに添加することを特徴とする。
The first aspect of the present invention comprises an isocyanate group-terminated prepolymer composed of tolylene diisocyanate and a polyol, a main agent containing an acid anhydride as a curing accelerator, and a curing agent containing an aromatic polyamine, a plasticizer and an inorganic filler. A two-pack urethane waterproofing material composition, wherein the aromatic polyamine contains diethyltoluenediamine.
The second aspect of the present invention is a main agent part containing an isocyanate group-terminated prepolymer composed of tolylene diisocyanate and a polyol, a curing agent part containing an aromatic polyamine containing diethyltoluenediamine, a plasticizer and an inorganic filler, and an acid anhydride. A urethane waterproof material composition kit comprising a curing accelerator part containing a product.
The third aspect of the present invention is the construction of a two-component urethane waterproof material comprising a main agent containing an isocyanate group-terminated prepolymer composed of tolylene diisocyanate and a polyol, and a curing agent containing an aromatic polyamine, a plasticizer and an inorganic filler. The method is characterized in that the aromatic polyamine contains diethyltoluenediamine and a third component containing an acid anhydride as a curing accelerator is added to the main component or when the main component and the curing agent are mixed.
本発明は、次の態様を含む。
[1]トリレンジイソシアナートとポリオールからなるイソシアナート基末端プレポリマーおよび硬化促進剤として酸無水物を含む主剤と、芳香族ポリアミン、可塑剤および無機充填剤を含む硬化剤とからなる2液型ウレタン防水材組成物であって、芳香族ポリアミンがジエチルトルエンジアミンを含むことを特徴とする、2液型ウレタン防水材組成物。
[2]硬化剤中の活性水素成分の80当量%以上が芳香族ポリアミンである、[1]に記載の2液型ウレタン防水材組成物。
[3]硬化剤中の活性水素成分の30当量%超がジエチルトルエンジアミンである、[1]または[2]に記載の2液型ウレタン防水材組成物。
[4]硬化剤中の活性水素成分がジエチルトルエンジアミンと4,4′−メチレンビス(N−sec−ブチルアニリン)を含む、[1]〜[3]のいずれか1つに記載の2液型ウレタン防水材組成物。
[5]酸無水物が常温で液状である、[1]〜[4]のいずれか1つに記載の2液型ウレタン防水材組成物。
[6]トリレンジイソシアナートとポリオールからなるイソシアナート基末端プレポリマーを含む主剤パーツと、ジエチルトルエンジアミンを含む芳香族ポリアミン、可塑剤および無機充填剤を含む硬化剤パーツと、酸無水物を含む硬化促進剤パーツとからなるウレタン防水材組成物キット。
[7]硬化剤中の活性水素成分の80当量%以上が芳香族ポリアミンである、[6]に記載のウレタン防水材組成物キット。
[8]硬化剤中の活性水素成分の30当量%超がジエチルトルエンジアミンである、[6]または[7]に記載のウレタン防水材組成物キット。
[9]硬化剤中の活性水素成分がジエチルトルエンジアミンと4,4′−メチレンビス(N−sec−ブチルアニリン)を含む、[6]〜[8]のいずれか1つに記載のウレタン防水材組成物キット。
[10]酸無水物が常温で液状である、[6]〜[9]のいずれか1つに記載のウレタン防水材組成物キット。
[11]トリレンジイソシアナートとポリオールからなるイソシアナート基末端プレポリマーを含む主剤と、芳香族ポリアミン、可塑剤および無機充填剤を含む硬化剤とからなる2液型ウレタン防水材組成物の施工方法であって、芳香族ポリアミンがジエチルトルエンジアミンを含み、硬化促進剤として酸無水物を含む第3成分を主剤にまたは主剤と硬化剤を混合するときに添加することを特徴とする、2液型ウレタン防水材組成物の施工方法。
[12]硬化剤中の活性水素成分の80当量%以上が芳香族ポリアミンである、[11]に記載の2液型ウレタン防水材組成物の施工方法。
[13]硬化剤中の活性水素成分の30当量%超がジエチルトルエンジアミンである、[11]または[12]に記載の2液型ウレタン防水材組成物の施工方法。
[14]硬化剤中の活性水素成分がジエチルトルエンジアミンと4,4′−メチレンビス(N−sec−ブチルアニリン)を含む、[11]〜[13]のいずれか1つに記載の2液型ウレタン防水材組成物の施工方法。
[15]酸無水物が常温で液状である、[11]〜[14]のいずれか1つに記載の2液型ウレタン防水材組成物の施工方法。
The present invention includes the following aspects.
[1] Two-pack type comprising an isocyanate group-terminated prepolymer composed of tolylene diisocyanate and a polyol, a main agent containing an acid anhydride as a curing accelerator, and a curing agent containing an aromatic polyamine, a plasticizer and an inorganic filler A two-component urethane waterproof material composition, wherein the aromatic polyamine contains diethyltoluenediamine.
[2] The two-component urethane waterproof material composition according to [1], wherein 80% by weight or more of the active hydrogen component in the curing agent is an aromatic polyamine.
[3] The two-pack type urethane waterproof material composition according to [1] or [2], in which more than 30 equivalent% of the active hydrogen component in the curing agent is diethyltoluenediamine.
[4] The two-pack type according to any one of [1] to [3], in which the active hydrogen component in the curing agent contains diethyltoluenediamine and 4,4′-methylenebis(N-sec-butylaniline). Urethane waterproof material composition.
[5] The two-pack type urethane waterproof material composition according to any one of [1] to [4], wherein the acid anhydride is liquid at room temperature.
[6] A main agent part containing an isocyanate group-terminated prepolymer composed of tolylene diisocyanate and a polyol, a curing agent part containing an aromatic polyamine containing diethyltoluenediamine, a plasticizer and an inorganic filler, and an acid anhydride A urethane waterproof material composition kit comprising a curing accelerator part.
[7] The urethane waterproof material composition kit according to [6], wherein 80% by weight or more of the active hydrogen component in the curing agent is an aromatic polyamine.
[8] The urethane waterproof material composition kit according to [6] or [7], wherein more than 30 equivalent% of the active hydrogen component in the curing agent is diethyltoluenediamine.
[9] The urethane waterproof material according to any one of [6] to [8], wherein the active hydrogen component in the curing agent contains diethyltoluenediamine and 4,4′-methylenebis(N-sec-butylaniline). Composition kit.
[10] The urethane waterproof material composition kit according to any one of [6] to [9], wherein the acid anhydride is liquid at room temperature.
[11] A method for constructing a two-pack type urethane waterproof material composition comprising a main agent containing an isocyanate group-terminated prepolymer composed of tolylene diisocyanate and a polyol, and a curing agent containing an aromatic polyamine, a plasticizer and an inorganic filler. Wherein the aromatic polyamine contains diethyltoluenediamine and a third component containing an acid anhydride as a curing accelerator is added to the main component or when mixing the main component and the curing agent. Construction method of urethane waterproof material composition.
[12] The method for applying the two-component urethane waterproof material composition according to [11], wherein 80% by weight or more of the active hydrogen component in the curing agent is an aromatic polyamine.
[13] The method for applying the two-pack type urethane waterproof material composition according to [11] or [12], wherein more than 30 equivalent% of the active hydrogen component in the curing agent is diethyltoluenediamine.
[14] The two-pack type according to any one of [11] to [13], in which the active hydrogen component in the curing agent contains diethyltoluenediamine and 4,4′-methylenebis(N-sec-butylaniline). Construction method of urethane waterproof material composition.
[15] The method for applying the two-component urethane waterproof material composition according to any one of [11] to [14], wherein the acid anhydride is liquid at room temperature.
本発明の速硬化性ウレタン防水材組成物は、潜在性硬化促進剤の効果により常温のみならず低温においても速硬化性を有しているため、工期短縮および施工の効率化を可能とする。また、汎用2液型ウレタン防水材組成物と同等程度の可使時間を有するため施工性が良好であり、汎用性を有する速硬化性ウレタン防水材組成物となりうる。 The quick-curing urethane waterproofing material composition of the present invention has a fast-curing property not only at room temperature but also at low temperature due to the effect of the latent curing accelerator, so that it can shorten the construction period and increase the efficiency of construction. Further, since it has a pot life equivalent to that of a general-purpose two-pack type urethane waterproof material composition, it has good workability and can be a versatile quick-curing urethane waterproof material composition.
従来の2液型ウレタン防水材の技術では、速硬化性を意図すると、同時に可使時間を短縮させてしまい作業性を悪くしてしまうため、実用性の乏しい防水材となってしまう。そのため、永年にわたり、ウレタン防水材の工期短縮は成されないまま現在に至ってしまった。しかし、各種の可能性を追求した結果、酸無水物を硬化促進剤として用いると、可使時間をあまり短縮せずに硬化性を促進する潜在性硬化促進剤の役割を果たすことを見出した。そこで、汎用防水材と同等程度の可使時間を有し、しかも施工当日中に硬化することのできる防水材の可能性について、鋭意研究を行った。 In the conventional two-component urethane waterproof material technology, if quick curing is intended, at the same time the pot life is shortened and the workability is deteriorated, resulting in a poor practical waterproof material. Therefore, over the years, the construction period of urethane waterproof material has not been shortened, and it has reached the present. However, as a result of pursuing various possibilities, it was found that when an acid anhydride is used as a curing accelerator, it plays a role of a latent curing accelerator that promotes curability without shortening the pot life. Therefore, we have earnestly studied the possibility of a waterproof material that has a pot life equivalent to that of a general-purpose waterproof material and that can be cured during the construction day.
その結果、主剤としてTDIプレポリマーを用い、硬化剤としてDETDAを用いるDETDA架橋型防水材に適用することにより、常温から低温においても3〜8時間程度で硬化させることができ、しかも汎用防水材と同等程度の可使時間を確保できることが分かった。
このことにより、低温においても汎用防水材と同等程度の施工性で一日の間に、2回のウレタン防水材を塗布することやウレタン防水材塗布後トップコートを塗布することができ、大幅な工期短縮が達成できる。また、従来であれば夕方以降に降雨が予想される場合にはウレタン防水材の施工は日中が好天であっても見合わせざるを得なかったが、本願の防水材を用いれば午前中の防水材施工はもとより、場合によっては当日中にトップコートの施工まで完了することもでき、大幅な施工の効率化が達成できる。
本願のウレタン防水材は、主剤としてTDIとポリオールのプレポリマーを含み、一方の硬化剤にはDETDAを含み、そのうえで硬化促進剤としての酸無水物を含むものであり、従来のMOCA架橋型防水材で達成することはできない。
As a result, when applied to a DETDA cross-linking waterproof material that uses TDI prepolymer as the main agent and DETDA as the curing agent, it can be cured in 3 to 8 hours at room temperature to low temperature, and it can be used as a general-purpose waterproof material. It was found that the same pot life could be secured.
This makes it possible to apply the urethane waterproof material twice a day or to apply the topcoat after applying the urethane waterproof material, with the same workability as general-purpose waterproof materials even at low temperatures. The construction period can be shortened. Further, if it is conventional that rainwater is expected to be seen in the evening or later, the construction of the urethane waterproof material had to be canceled even in the daytime, but if the waterproof material of the present application is used, Not only the waterproof material construction but also the construction of the top coat can be completed during the day depending on the case, and a great efficiency of construction can be achieved.
The urethane waterproof material of the present application contains a prepolymer of TDI and a polyol as a main component, contains DETDA as one curing agent, and further contains an acid anhydride as a curing accelerator, and is a conventional MOCA cross-linked waterproof material. Can not be achieved with.
(主剤)
主剤としては、全末端イソシアナート基中の50当量%以上がTDIに属するイソシアナート基であることが好ましく、さらに70当量%以上であることがより好ましい。TDIよりも反応性の低いポリイソシアナートでは低温での速硬化性を達成することが難しくなり、TDIよりも反応性の高いポリイソシアナートでは可使時間の確保が難しくなる。
また、併用できるその他のポリイソシアナートとして、イソホロンジイソシアナート、ヘキサメチレンジイソシアナート、ノルボルネンジイソシアナート、水添化トリレンジイソシアナート、水添化キシリレンジイソシアナート、水添加ジフェニルメタンジイソシアナート、水添加テトラメチルキシリレンジイソシアナートなどの反応性の低いポリイソシアナート類や、キシリレンジイソシアナート、テトラメチルキシリレンジイソシアナート、ジフェニルメタンジイソシアナートなど比較的反応性の高いポリイソシアナートなどが挙げられる。
(Main agent)
As the main agent, 50 equivalent% or more of all the terminal isocyanate groups is preferably an isocyanate group belonging to TDI, and more preferably 70 equivalent% or more. A polyisocyanate having a reactivity lower than that of TDI makes it difficult to achieve rapid curing at a low temperature, and a polyisocyanate having a reactivity higher than that of TDI makes it difficult to secure a pot life.
Further, as other polyisocyanate that can be used in combination, isophorone diisocyanate, hexamethylene diisocyanate, norbornene diisocyanate, hydrogenated tolylene diisocyanate, hydrogenated xylylene diisocyanate, water-added diphenylmethane diisocyanate, Low reactive polyisocyanates such as water-added tetramethyl xylylene diisocyanate, and relatively highly reactive polyisocyanates such as xylylene diisocyanate, tetramethyl xylylene diisocyanate, and diphenylmethane diisocyanate. ..
TDIとしては、工業的に入手できる2,4−TDIと2,6−TDIの質量比が65/35であるT−65、80/20であるT−80、100/0であるT−100が使用でき、各々のブレンド品も使用することができる。なかでも、可使時間を確保するに有利な、T−80およびT−100を主成分とすることが好ましい。 As TDI, the industrially available mass ratio of 2,4-TDI and 2,6-TDI is T-65 which is 65/35, T-80 which is 80/20 and T-100 which is 100/0. Can be used, and each blended product can also be used. Above all, it is preferable to use T-80 and T-100 as the main components, which are advantageous for ensuring the pot life.
(主剤に用いるポリオール)
主剤に用いるポリオールとしては、通常ウレタン防水材の主剤に用いられるポリオールを用いることができるが、低粘度で施工性のよい主剤とするためには、分子量が300〜8000のポリオキシプロピレンポリオールやポリオキシエチレンポリオキシプロピレンポリオールといったポリエーテル系ポリオールを用いることが好ましい。また、ポリエステル系などその他の高分子量ポリオールも一部であれば使用することができる。
さらに、1,4−ブタンジオール、3−メチル−1,5−ペンタンジオール、1,6−ヘキサンジオール、プロピレングリコール、ジプロピレングリコールといった短鎖ポリオールも使用することができる。
(Polyol used as the main agent)
As the polyol used as the main agent, a polyol usually used as the main agent of the urethane waterproof material can be used, but in order to obtain a low viscosity and good workability, the polyoxypropylene polyol or the polyoxypropylene polyol having a molecular weight of 300 to 8000 is used. It is preferable to use a polyether polyol such as oxyethylene polyoxypropylene polyol. Further, other high molecular weight polyols such as polyester type can also be used as long as they are part.
Furthermore, short-chain polyols such as 1,4-butanediol, 3-methyl-1,5-pentanediol, 1,6-hexanediol, propylene glycol and dipropylene glycol can also be used.
また、ポリオールとしては、ジオールのみでは耐熱性や耐アルカリ性が不十分となる傾向があり、トリオール以上の官能基数のポリオールが80当量%以上となると可使時間や伸び率を確保することが難しくなるため、トリオール以上の官能基数のポリオールを3〜80当量%の範囲で用いることが好ましい。 Further, as a polyol, heat resistance and alkali resistance tend to be insufficient only with a diol, and when the polyol having a functional group number of triol or more is 80 equivalent% or more, it becomes difficult to secure a pot life and an elongation rate. Therefore, it is preferable to use a polyol having a functional group number of triol or more in the range of 3 to 80 equivalent %.
(主剤製造方法)
次に、主剤の製造方法であるが、NCO基とOH基との比率が1.5〜2.2の範囲となるようにポリイソシアナートとポリオールを配合することが好ましく、80〜110℃で3〜10時間程度加温することで製造することができる。また場合によっては、溶剤や可塑剤を一部配合することもできる。
最終的なNCO含有量は、1.8〜4.0質量%であることが好ましい。NCO含有量が1.8質量%未満ではウレタン防水材に必要な物性が得られにくく、4.0質量%超となると可使時間を確保することが難しくなる。
尚、主剤中のNCO含有量を2.0〜3.3質量%とし同時にNCO/OHを1.6〜2.05の範囲にすることで、遊離TDI含有量が1.0質量%以下の特化則非該当主剤が得やすくなるため、より好ましい。
(Main agent manufacturing method)
Next, regarding the method for producing the main agent, it is preferable to blend the polyisocyanate and the polyol so that the ratio of the NCO group and the OH group is in the range of 1.5 to 2.2. It can be manufactured by heating for about 3 to 10 hours. Further, depending on the case, a solvent or a plasticizer may be partly added.
The final NCO content is preferably 1.8 to 4.0 mass %. If the NCO content is less than 1.8% by mass, it is difficult to obtain the physical properties required for the urethane waterproof material, and if it exceeds 4.0% by mass, it becomes difficult to secure the pot life.
The free TDI content is 1.0 mass% or less by setting the NCO content in the main agent to 2.0 to 3.3 mass% and simultaneously setting the NCO/OH in the range of 1.6 to 2.05. It is more preferable because the main agent that does not meet the specialization rule can be easily obtained.
(硬化剤ポリアミン)
硬化剤は、DETDAを含み、速硬化性を達成するためには、DETDAの使用量は硬化剤中の活性水素成分中の30当量%超であることが好ましく、50当量%以上であることがより好ましい。DETDAには、3,5−ジエチル−2,4−トルエンジアミン、3,5−ジエチル−2,6−トルエンジアミンなどの異性体が存在するが、本願ではいずれの異性体を用いてもよく、またそれらの混合物を用いても良く、工業としては例えばEthacure100(2,4−異性体/2,6−異性体の質量比80/20)などが入手できる。
(Curing agent polyamine)
The curing agent contains DETDA, and in order to achieve fast curing property, the amount of DETDA used is preferably more than 30 equivalent% in the active hydrogen component in the curing agent, and is 50 equivalent% or more. More preferable. DETDA has isomers such as 3,5-diethyl-2,4-toluenediamine and 3,5-diethyl-2,6-toluenediamine, but any isomer may be used in the present application. Further, a mixture thereof may be used, and for example, Ethacure 100 (mass ratio of 2,4-isomer/2,6-isomer) of 80/20) is industrially available.
DETDAと併用できる芳香族ポリアミンとしては、DETDAと同様に高反応性であるイハラケミカル工業株式会社製のキュアハードMED(4,4′−メチレンビス(2−エチル−6−メチルアニリン)、日本化薬株式会社製のカヤハードAA(4,4′−メチレンビス(2−エチルアニリン)、日本化薬株式会社製のカヤボンドC−300(4,4′−メチレンビス(2,6−ジエチルアニリン)、日本化薬株式会社製のカヤボンドC−400(4,4′−メチレンビス(2,6−ジiso−プロピルアニリン)などがあげられるが、結晶性が高いか溶解性が悪い場合が多ため、芳香族ポリアミン中の50当量%未満にすることが好ましい。 As the aromatic polyamine that can be used in combination with DETDA, Cure Hard MED (4,4′-methylenebis(2-ethyl-6-methylaniline) manufactured by Ihara Chemical Industry Co., Ltd., which has high reactivity like DETDA, Nippon Kayaku Co., Ltd. Kayahard AA (4,4'-methylenebis(2-ethylaniline), manufactured by Kayabond C-300 (4,4'-methylenebis(2,6-diethylaniline), manufactured by Nippon Kayaku, Nippon Kayaku) Kayabond C-400 (4,4'-methylenebis(2,6-diiso-propylaniline), etc. manufactured by K.K. is listed, but in many cases it has high crystallinity or poor solubility, so it is a medium aromatic polyamine. Is preferably less than 50 equivalent %.
また、低反応性のポリアミンとしては、アルベマール社製のEthacure420(4,4′−メチレンビス(N−sec−ブチルアニリン))、アルベマール社製のEthacure300(ジメチルチオトルエンジアミン)、イハラケミカル株式会社製のエラスマー650P(ポリテトラメチレングリコールビス(p−アミノベンゾエート))、イハラケミカル株式会社製のポレアSL−100A(ポリ(テトラメチレン/3−メチルテトラメチレンエーテル)グリコールビス(4−アミノベンゾエート))などが挙げられるが、使用量が多くなると速硬化性が損なわれる傾向となるため、芳香族ポリアミン中の60当量%未満にすることが好ましい。その中で、Ethacure420を併用した場合は、可使時間を延長させる効果の割に硬化性を損ねないという特徴があり、酸無水物を硬化促進剤として用いた場合に、より可使時間が長くとれて速硬化性となるため、併用する芳香族ポリアミンとしてより好ましい。 In addition, as the low-reactivity polyamine, Ethacure 420 (4,4′-methylenebis(N-sec-butylaniline)) manufactured by Albemarle, Ethacure 300 (dimethylthiotoluenediamine) manufactured by Albemarle, manufactured by Ihara Chemical Co., Ltd. Erasmer 650P (polytetramethylene glycol bis(p-aminobenzoate)), Polea SL-100A (poly(tetramethylene/3-methyltetramethylene ether) glycol bis(4-aminobenzoate)) manufactured by Ihara Chemical Co., Ltd. However, if the amount used is too large, the rapid curing property tends to be impaired, so the amount is preferably less than 60 equivalent% in the aromatic polyamine. Among them, when Ethacure 420 is used together, there is a characteristic that the curability is not impaired for the effect of extending the pot life, and when the acid anhydride is used as a curing accelerator, the pot life is longer. It is more preferable as an aromatic polyamine to be used in combination, because it takes off and has a fast curing property.
(可塑剤)
また、本願は可使時間を確保するために可塑剤を用いる必要がある。可塑剤なしでは常温はもとより低温においても作業に必要とされる可使時間を確保することは難しい。可塑剤の使用量は、主剤中のプレポリマー成分100質量部に対し、15質量部〜90質量部であることが好ましい。15質量部未満では可使時間の確保が難しくなり、90質量部超では速硬化性を保持することおよびJIS規格に適した物性を保持することが難しくなる。さらに、良好な作業性と物性のためには、可塑剤量が20〜80質量部であることがより好ましい。可塑剤は主に硬化剤に配合することが好ましいが、一部主剤側に配合することもできる。
(Plasticizer)
Further, the present application requires the use of a plasticizer in order to secure the pot life. Without a plasticizer, it is difficult to secure the pot life required for work not only at room temperature but also at low temperature. The amount of the plasticizer used is preferably 15 parts by mass to 90 parts by mass with respect to 100 parts by mass of the prepolymer component in the main agent. If it is less than 15 parts by mass, it becomes difficult to secure the pot life, and if it exceeds 90 parts by mass, it becomes difficult to maintain fast curing property and physical properties suitable for JIS standard. Furthermore, for good workability and physical properties, the amount of plasticizer is more preferably 20 to 80 parts by mass. It is preferable that the plasticizer is mainly added to the curing agent, but a part of the plasticizer can be added to the main agent side.
可塑剤としては、ウレタン樹脂に一般的に配合できる可塑剤を使用することができる。例として、ジイソノニルフタレート(DINP)、ジオクチルフタレート(DOP)、ブチルベンジルフタレート(BBP)などのフタル酸エステル類、脂肪族二塩基酸エステル類、リン酸エステル類、トリメリット酸エステル類、セバシン酸エステル類、エポキシ脂肪酸エステル類、グリコールエステル類、動植物油系脂肪酸エステル類、石油・鉱物油系可塑剤、アルキレンオキサイド重合系可塑剤などが挙げられる。中でも、引火点が200℃以上である、ジイソノニルフタレート(DINP)、ジオクチルフタレート(DOP)は長期的にも重量減少を起こし難く、芳香族ポリエステルであり加水分解も起こし難いため、好ましく使用することができる。なお、硬化剤中に溶剤を使用することもできるが、施工後の揮発により収縮を起こす危険性や無機充填剤を沈降しやすくする傾向があり、環境面での問題もあるため、5質量%以内で用いることが好ましく、使用しないことがより好ましい。また、硬化剤側に可塑剤を配合することで、無機充填剤を多く配合することができ、経済性のある防水材とすることができる。 As the plasticizer, it is possible to use a plasticizer that can be generally added to the urethane resin. Examples include phthalates such as diisononyl phthalate (DINP), dioctyl phthalate (DOP), butylbenzyl phthalate (BBP), aliphatic dibasic acid esters, phosphoric acid esters, trimellitic acid esters, sebacic acid esters. Examples thereof include epoxy fatty acid esters, glycol esters, animal and vegetable oil fatty acid esters, petroleum/mineral oil plasticizers, alkylene oxide polymerization plasticizers, and the like. Of these, diisononyl phthalate (DINP) and dioctyl phthalate (DOP), which have a flash point of 200° C. or higher, are unlikely to cause weight loss over a long period of time, are aromatic polyesters, and are also resistant to hydrolysis, and therefore are preferably used. it can. Although a solvent can be used in the curing agent, there is a risk of shrinkage due to volatilization after construction and the tendency of the inorganic filler to easily settle out, and there is also an environmental problem, so 5% by mass It is preferable to use within, and it is more preferable not to use. Further, by adding a plasticizer to the curing agent side, it is possible to add a large amount of inorganic filler, and it is possible to provide an economical waterproof material.
(無機充填剤)
さらに、本願では無機系充填剤も必要となる。無機系充填剤を配合することで、可使時間を有した速硬化性防水材をJIS規格に適合した物性にすることができる。充填剤は、硬化剤中に配合することが好ましいが、一部主剤側にも配合することができる。無機充填剤の配合量は主剤中のプレポリマー成分100質量部に対し、20質量部〜160質量部であることが好ましい。充填剤が20質量部以下では補強効果が不十分になりやすく、160質量部超では樹脂分が少なくなることによる物性低下や高粘度化が起こってしまう。
(Inorganic filler)
Further, the present application also requires an inorganic filler. By blending an inorganic filler, a quick-curing waterproof material having a pot life can be made to have physical properties conforming to JIS standards. The filler is preferably blended in the curing agent, but it can also be blended partially in the main agent side. The blending amount of the inorganic filler is preferably 20 parts by mass to 160 parts by mass with respect to 100 parts by mass of the prepolymer component in the main agent. If the amount of the filler is 20 parts by mass or less, the reinforcing effect tends to be insufficient, and if it exceeds 160 parts by mass, the resin content decreases and the physical properties decrease and the viscosity increases.
充填剤としては、炭酸カルシウムが挙げられ、製造時の分散性が良好であり、配合量を多くしても比較的低粘度の状態を保つことも容易であり、コストダウン効果も高い。炭酸カルシウムには、重質炭酸カルシウム、軽質炭酸カルシウム、コロイダル炭酸カルシウム、各種表面処理炭酸カルシウムなどあるが、いずれの炭酸カルシウムも使用することができる。また、表面処理コロイダル炭酸カルシウムを配合することで適度の揺変性が得られるため、立上り用防水材を製造することもできる。その他の無機充填材としては、シリカ系、カオリンクレー系、タルク系、ベントナイト系などが使用できるが、使用量が多くなると増粘性が激しくなり、また水分量の管理が難しいという問題があるため、炭酸カルシウムが主成分であることが好ましい。また、有機系充填剤も一部であれば使用することはできる。 Examples of the filler include calcium carbonate, which has good dispersibility at the time of production, can easily maintain a relatively low viscosity state even if the compounding amount is increased, and has a high cost reduction effect. Examples of calcium carbonate include heavy calcium carbonate, light calcium carbonate, colloidal calcium carbonate, various surface-treated calcium carbonates, and any calcium carbonate can be used. Further, since a suitable thixotropic property can be obtained by blending the surface-treated colloidal calcium carbonate, a rising waterproof material can be produced. As other inorganic fillers, silica-based, kaolin clay-based, talc-based, bentonite-based, etc. can be used, but when the amount used is large, the viscosity increase becomes severe, and there is a problem that it is difficult to control the water content, It is preferable that calcium carbonate is the main component. In addition, some organic fillers can be used.
(硬化剤ポリオール)
次に、硬化剤中の活性水素成分としてのポリオールであるが、ポリオールはDETDAよりもかなり反応性が遅く、しかも酸系硬化促進剤により硬化促進されないため、本願では特に必要とはしないが、可使時間の調整や粘度調整、湿潤調整、物性調整、接着性向上などのために一部使用することはできる。速硬化性を保持するためにはポリオールの使用量は20当量%以下とすることが好ましく、10当量%以下であることがより好ましい。
(Curing agent polyol)
Next, regarding a polyol as an active hydrogen component in the curing agent, the reactivity of the polyol is considerably slower than that of DETDA, and the curing is not promoted by the acid-based curing accelerator. It can be partially used for adjusting the working time, adjusting the viscosity, adjusting the wetness, adjusting the physical properties, and improving the adhesiveness. In order to maintain the fast curing property, the amount of the polyol used is preferably 20 equivalent% or less, more preferably 10 equivalent% or less.
使用できるポリオールとしては、ポリオキシプロピレンポリオール、ポリオキシエチレンポリオキシプロピレンポリオール、ポリエステルポリオールといった比較的高分子量ポリオールや、1,4−ブタンジオール、1,6−ヘキサンジオール、3−メチル−1,5−ペンタンジオール、トリメチロールプロパン、グリセリンといった短鎖ポリオールも使用することができる。 Polyols that can be used include relatively high molecular weight polyols such as polyoxypropylene polyol, polyoxyethylene polyoxypropylene polyol and polyester polyol, 1,4-butanediol, 1,6-hexanediol and 3-methyl-1,5. Short chain polyols such as pentanediol, trimethylolpropane, glycerin can also be used.
(酸無水物)
本願では、酸無水物を用いる必要がある。酸無水物そのものには硬化促進効果はないが、酸無水物と水、アミノ基、ポリオール水酸基とが付加反応することにより発生するカルボン酸が触媒活性を示すと思われる(潜在性触媒)。特に、DETDAのアミノ基と酸無水物はかなり優先的に反応すると思われ、その反応物が2−エチルヘキサン酸のようなカルボン酸単独と同等かそれ以上の触媒活性を示すことが分かった。
(Acid anhydride)
In the present application, it is necessary to use an acid anhydride. Although the acid anhydride itself does not have a curing-accelerating effect, it is considered that the carboxylic acid generated by the addition reaction of the acid anhydride with water, the amino group and the polyol hydroxyl group exhibits catalytic activity (latent catalyst). In particular, the amino groups of DETDA and acid anhydrides seem to react fairly preferentially, and it has been found that the reaction product exhibits catalytic activity equivalent to or higher than that of a carboxylic acid such as 2-ethylhexanoic acid alone.
また、酸無水物とアミノ基、水、ポリオール水酸基との付加反応は適度の反応速度を有するようであり、触媒活性体は徐々に系内に生成していくため、可使時間を短縮する影響は少ないと考えられる。一方、付加反応完結後は、付加物が大きな触媒活性を示すため、数時間後となる硬化時間に対しては悪影響を及ぼさずに速硬化性を示すと推察される。その結果、従来のカルボン酸系の促進剤より十分な可使時間を確保した上で、同等レベルかそれ以上の速硬化性を示すものと推察される。 Also, the addition reaction of acid anhydride with amino group, water, and hydroxyl group of polyol seems to have an appropriate reaction rate, and the catalytically active substance is gradually generated in the system, which has the effect of shortening the pot life. Is considered to be few. On the other hand, after the completion of the addition reaction, since the adduct shows a large catalytic activity, it is presumed that the adduct shows a fast curing property without adversely affecting the curing time which is a few hours later. As a result, it is presumed that while exhibiting a sufficient pot life as compared with the conventional carboxylic acid type accelerator, it exhibits a fast curing property at the same level or higher.
カルボン酸無水物としては、例えば、無水酢酸、無水プロピオン酸、無水コハク酸、無水マレイン酸、無水フタル酸、1,2,3,6−テトラヒドロ無水フタル酸、3−メチル−1,2,3,6−テトラヒドロ無水フタル酸、4−メチル−1,2,3,6−テトラヒドロ無水フタル酸、3,4,5,6−テトラヒドロ無水フタル酸、ヘキサヒドロ無水フタル酸、3−メチルヘキサヒドロ無水フタル酸、4−メチルヘキサヒドロ無水フタル酸、メチルビシクロ[2.2.1]ヘプタン−2,3−ジカルボン酸無水物、ビシクロ[2.2.1]ヘプタン−2,3−ジカルボン酸無水物、メチル−3,6−エンドメチレン−1,2,3,6−テトラヒドロ無水フタル酸、エチレングリコールビスアンヒドロトリメリテート、グリセリンビスアンヒドロトリメリテートモノアセテート、テトラプロペニル無水コハク酸、オクテニルコハク酸無水物、3,3′,4,4′−ジフェニルスルホンテトラカルボン酸二無水物、1,3,3a,4,5,9b−ヘキサヒドロ−5(テトラヒドロ−2,5−ジオキソ−3−フラニル)ナフト[1,2−c]フラン−1,3−ジオン、1,2,3,4−ブタンテトラカルボン酸二無水物などが挙げられる。カルボン酸無水物は、単独で用いられても二種以上が併用されてもよい。 Examples of the carboxylic acid anhydride include acetic anhydride, propionic anhydride, succinic anhydride, maleic anhydride, phthalic anhydride, 1,2,3,6-tetrahydrophthalic anhydride, and 3-methyl-1,2,3. ,6-Tetrahydrophthalic anhydride, 4-methyl-1,2,3,6-tetrahydrophthalic anhydride, 3,4,5,6-tetrahydrophthalic anhydride, hexahydrophthalic anhydride, 3-methylhexahydrophthalic anhydride Acid, 4-methylhexahydrophthalic anhydride, methylbicyclo[2.2.1]heptane-2,3-dicarboxylic acid anhydride, bicyclo[2.2.1]heptane-2,3-dicarboxylic acid anhydride, Methyl-3,6-endomethylene-1,2,3,6-tetrahydrophthalic anhydride, ethylene glycol bisanhydrotrimellitate, glycerin bisanhydrotrimellitate monoacetate, tetrapropenyl succinic anhydride, octenyl succinic anhydride 1,3',4,4'-diphenylsulfone tetracarboxylic dianhydride, 1,3,3a,4,5,9b-hexahydro-5(tetrahydro-2,5-dioxo-3-furanyl)naphtho Examples include [1,2-c]furan-1,3-dione, 1,2,3,4-butanetetracarboxylic dianhydride and the like. The carboxylic acid anhydrides may be used alone or in combination of two or more kinds.
2液型ウレタン防水材は施工現場で主剤と硬化剤を混合して塗布するため、常温で固体の酸無水物は混合液中に溶けきらずに結晶化する虞がある。酸無水物が結晶化した場合十分な硬化促進効果を得られない可能性があるため、常温で液状の酸無水物が好ましい。常温で液状の酸無水物としては、例えば、無水酢酸、無水プロピオン酸、無水コハク酸、日立化成株式会社製のHN−2200(3−メチル−1,2,3,6−テトラヒドロ無水フタル酸と4−メチル−1,2,3,6−テトラヒドロ無水フタル酸の混合物)、新日本理化株式会社製のリカシッドHH(ヘキサヒドロ無水フタル酸)、新日本理化株式会社製のリカシッドMH−700(3−メチルヘキサヒドロ無水フタル酸/4−メチルヘキサヒドロ無水フタル酸=70/30の混合物)、新日本理化株式会社製のリカシッドMH(4−メチルヘキサヒドロ無水フタル酸)、新日本理化株式会社製のリカシッドHNA−100(メチルビシクロ[2.2.1]ヘプタン−2,3−ジカルボン酸無水物とビシクロ[2.2.1]ヘプタン−2,3−ジカルボン酸無水物の混合物)、日立化成株式会社製のMHAC−P(メチル−3,6−エンドメチレン−1,2,3,6−テトラヒドロ無水フタル酸)、三洋化成工業株式会社製のDSA(テトラプロペニル無水コハク酸)、新日本理化株式会社製のリカシッドOSA(オクテニルコハク酸無水物)などが挙げられ、その中でも特に日立化成株式会社製のHN−2200(3−メチル−1,2,3,6−テトラヒドロ無水フタル酸と4−メチル−1,2,3,6−テトラヒドロ無水フタル酸の混合物)、日立化成株式会社製のMHAC−P(メチル−3,6−エンドメチレン−1,2,3,6−テトラヒドロ無水フタル酸)、新日本理化株式会社製のリカシッドMH−700(3−メチルヘキサヒドロ無水フタル酸/4−メチルヘキサヒドロ無水フタル酸=70/30の混合物)、三洋化成工業株式会社製のDSA(テトラプロペニル無水コハク酸)などがより好ましい。 Since the two-component urethane waterproof material is applied by mixing the main agent and the curing agent at the construction site, the solid acid anhydride at room temperature may not be completely dissolved in the mixed solution and may be crystallized. When the acid anhydride is crystallized, a sufficient curing acceleration effect may not be obtained, so an acid anhydride that is liquid at room temperature is preferable. Examples of the acid anhydride that is liquid at room temperature include acetic anhydride, propionic anhydride, succinic anhydride, and HN-2200 (3-methyl-1,2,3,6-tetrahydrophthalic anhydride manufactured by Hitachi Chemical Co., Ltd.). Mixture of 4-methyl-1,2,3,6-tetrahydrophthalic anhydride), RIKACID HH (hexahydrophthalic anhydride) manufactured by Shin Nippon Rika Co., Ltd., RIKACID MH-700 manufactured by Shin Nippon Rika Co., Ltd. (3- A mixture of methylhexahydrophthalic anhydride/4-methylhexahydrophthalic anhydride=70/30), Rikaacid MH (4-methylhexahydrophthalic anhydride) manufactured by Shin Nippon Rika Co., Ltd., manufactured by Shin Nippon Rika Co., Ltd. RIKACID HNA-100 (mixture of methylbicyclo[2.2.1]heptane-2,3-dicarboxylic acid anhydride and bicyclo[2.2.1]heptane-2,3-dicarboxylic acid anhydride), Hitachi Chemical Co., Ltd. MHAC-P (Methyl-3,6-Endomethylene-1,2,3,6-tetrahydrophthalic anhydride) manufactured by the company, DSA (Tetrapropenyl succinic anhydride) manufactured by Sanyo Chemical Industries, Ltd. The company's RIKACID OSA (octenyl succinic anhydride) and the like can be mentioned, and among them, HN-2200 (3-methyl-1,2,3,6-tetrahydrophthalic anhydride and 4-methyl-, manufactured by Hitachi Chemical Co., Ltd., among others. 1,2,3,6-tetrahydrophthalic anhydride mixture), Hitachi Chemical Co., Ltd. MHAC-P (methyl-3,6-endomethylene-1,2,3,6-tetrahydrophthalic anhydride), new RIKACID MH-700 (mixture of 3-methylhexahydrophthalic anhydride/4-methylhexahydrophthalic anhydride=70/30) manufactured by Nippon Rika Co., Ltd., DSA (tetrapropenyl succinic anhydride manufactured by Sanyo Kasei Co., Ltd.) ) And the like are more preferable.
酸無水物の使用量は、主剤100gに対して0.05〜10.0質量%使用することが望ましく、0.1〜5.0質量%使用することが更に望ましい。酸無水物の使用量が少なすぎると速硬化性が十分に得られず、一方多すぎれば十分な可使時間を確保できない。 The acid anhydride is preferably used in an amount of 0.05 to 10.0% by mass, and more preferably 0.1 to 5.0% by mass, based on 100 g of the main agent. If the amount of the acid anhydride used is too small, the rapid curing property cannot be sufficiently obtained, while if it is too large, sufficient pot life cannot be secured.
また、硬化促進剤は硬化剤中に配合するのが一般的であるが、本願ではあらかじめ酸無水物を硬化剤に配合することは除外される。あらかじめ硬化剤中に酸無水物を配合した場合には、酸無水物と水分、アミノ基、ポリオール水酸基などの付加反応により酸無水物が開環してしまうため潜在性を示さずに、通常のカルボン酸類と同様に硬化性を速くすると同時に可使時間も短くしてしまう。従って、本願においては、イソシアナート基末端プレポリマーを含む主剤パーツと、芳香族ポリアミン、可塑剤および無機充填剤を含む硬化剤パーツと、酸無水物を含む硬化促進剤パーツからなるキットを施工現場で混合する方法および主剤側にあらかじめ酸無水物を添加する方法に限られる。尚、キットを施工現場で混合する方法として、先に硬化剤パーツに硬化促進剤パーツを添加した後、速やかに主剤パーツを添加混合する方法も含まれる。 Further, the curing accelerator is generally blended in the curing agent, but in the present application, blending the acid anhydride with the curing agent in advance is excluded. When an acid anhydride is preliminarily compounded in the curing agent, the acid anhydride will ring-open due to an addition reaction of water, amino group, polyol hydroxyl group, etc. Similar to carboxylic acids, it accelerates curability and shortens pot life. Therefore, in the present application, a kit consisting of a main agent part containing an isocyanate group-terminated prepolymer, a curing agent part containing an aromatic polyamine, a plasticizer and an inorganic filler, and a curing accelerator part containing an acid anhydride is used at the construction site. It is limited to the method of mixing with and the method of previously adding an acid anhydride to the main agent side. As a method of mixing the kit at the construction site, a method of first adding the curing accelerator parts to the curing agent parts and then rapidly adding and mixing the main agent parts is also included.
さらに検討を進めた結果、主剤側に硬化促進剤をあらかじめ添加した場合は主剤の貯蔵安定性に問題が生じる場合が多いが、本願の酸無水物では主剤との貯蔵安定性に問題がなく、貯蔵後の促進効果にも問題がないことが分かった。そのため、本願の酸無水物を主剤側に配合する方法は、施工現場で第3成分としての少量の酸無水物を計量し添加するという煩雑な作業が省略でき、酸無水物の搬送・保管・管理を省くことができるため、より好ましい方法となる。 As a result of further study, when a curing accelerator is added in advance to the main agent side, there are often problems with the storage stability of the main agent, but with the acid anhydride of the present application, there is no problem with the storage stability with the main agent, It was found that there was no problem in the promoting effect after storage. Therefore, the method of blending the acid anhydride of the present application with the main agent side can omit the complicated work of measuring and adding a small amount of the acid anhydride as the third component at the construction site, and transporting and storing the acid anhydride. This is a more preferable method because management can be omitted.
(併用硬化促進剤)
本願では、有機第2錫系化合物、3級アミン、カルボン酸金属塩、カルボン酸などが硬化促進剤として併用できる。有機第2錫系化合物としては、例えばジブチル錫オキサイド、ジオクチル錫オキサイド、ジブチル錫ジラウレート、ジブチル錫ジアセテート、ジブチル錫ジ2−エチルへキサノエート、ジオクチル錫ジアセテート、ジオクチル錫ジラウレート、ジブチル錫ジメルカプタイド、ジブチル錫ビスアセチルアセトネート、ジブチル錫オキシラウレート、ジオクチル錫ジネオデカネート、ジブチル錫ビスブチルマレート、ジオクチル錫2−エチルヘキシルマレートなどが挙げられ、中でもジブチル錫ジラウレート、ジオクチル錫ジラウレートが好ましい。有機第2錫系化合物は硬化剤中に0.001〜0.1質量%使用することが好ましい。
3級アミンとしては、例えばトリエチルアミン、トリブチルアミン、トリエチレンジアミン、N−エチルモルフォリン、ビス(2−モルホリノエチル)エーテル、ジアザビシクロウンデセンなどの一般的な3級アミンを使用することができるが、特殊な3級アミンであるイミダゾール化合物が好ましく、イミダゾール化合物としては、例えば1,2−ジメチルイミダゾール、1−イソブチル−2−メチルイミダゾール、1−ベンジル−2−メチルイミダゾール、1−ベンジル−2−フェニルイミダゾールのような1位と2位に置換基を有する化合物や、1−メチルイミダゾール、1−アリルイミダゾールのような1位に置換基を有する化合物が使用できる。中でも、1位と2位に置換基を有するイミダゾール化合物が好ましい。3級アミンは、硬化剤中に0.01〜2.0質量%使用することが好ましい。
(Combination accelerator)
In the present application, organic stannic compounds, tertiary amines, carboxylic acid metal salts, carboxylic acids and the like can be used together as a curing accelerator. Examples of the organic stannic compound include dibutyltin oxide, dioctyltin oxide, dibutyltin dilaurate, dibutyltin diacetate, dibutyltin di2-ethylhexanoate, dioctyltin diacetate, dioctyltin dilaurate, dibutyltin dimercaptide, dibutyl. Examples thereof include tin bisacetylacetonate, dibutyltin oxylaurate, dioctyltin dineodecanate, dibutyltin bisbutylmalate, dioctyltin 2-ethylhexylmalate, and among them, dibutyltin dilaurate and dioctyltin dilaurate are preferable. The organic stannic compound is preferably used in the curing agent in an amount of 0.001 to 0.1% by mass.
As the tertiary amine, for example, general tertiary amines such as triethylamine, tributylamine, triethylenediamine, N-ethylmorpholine, bis(2-morpholinoethyl)ether, and diazabicycloundecene can be used. An imidazole compound which is a special tertiary amine is preferable, and examples of the imidazole compound include 1,2-dimethylimidazole, 1-isobutyl-2-methylimidazole, 1-benzyl-2-methylimidazole, 1-benzyl-2- A compound having a substituent at the 1- and 2-positions such as phenylimidazole, and a compound having a substituent at the 1-position such as 1-methylimidazole and 1-allylimidazole can be used. Among them, an imidazole compound having a substituent at the 1-position and the 2-position is preferable. It is preferable to use the tertiary amine in the curing agent in an amount of 0.01 to 2.0% by mass.
また、一般的にウレタン化硬化促進剤であるカルボン酸金属塩も使用することができる。カルボン酸金属塩としては、例えば2−エチルヘキサン酸、ネオデカン酸、ナフテン酸、オレイン酸、リノール酸、リノレン酸、樹脂酸の鉛塩、亜鉛塩、ビスマス塩、ジルジルコニウム塩、錫塩、銅塩、マグネシウム塩、カルシウム塩、ストロンチウム塩、バリウム塩などが挙げられ、カルボン酸金属塩は硬化剤中に0.1〜4.0質量%使用することが好ましい。 Further, a carboxylic acid metal salt which is generally a urethane-curing accelerator can also be used. Examples of the carboxylic acid metal salt include 2-ethylhexanoic acid, neodecanoic acid, naphthenic acid, oleic acid, linoleic acid, linolenic acid, lead salt of resin acid, zinc salt, bismuth salt, zirconium zirconium salt, tin salt, and copper salt. , Magnesium salt, calcium salt, strontium salt, barium salt and the like, and the carboxylic acid metal salt is preferably used in an amount of 0.1 to 4.0% by mass in the curing agent.
カルボン酸としては、例えばプロピオン酸、2−メチルペンタン酸、2−エチルヘキサン酸、イソノナン酸、ナフテン酸などが挙げられ、中でも2−エチルヘキサン酸が好ましい。カルボン酸は、硬化剤中に0.05〜2.0質量%使用することが望ましく、その一部或いは全量を主剤側に配合しても構わない。 Examples of the carboxylic acid include propionic acid, 2-methylpentanoic acid, 2-ethylhexanoic acid, isononanoic acid, naphthenic acid, and the like, and 2-ethylhexanoic acid is preferable. The carboxylic acid is preferably used in an amount of 0.05 to 2.0% by mass in the curing agent, and a part or the whole amount thereof may be mixed in the main agent side.
(主剤NCO基/硬化剤(アミノ基+水酸基)比
主剤と硬化剤の混合においては、主剤中のNCO基と硬化剤中の活性水素成分であるアミノ基や水酸基との比率であるNCO基/(アミノ基+水酸基)が0.9〜1.6の範囲にすることが好ましい。0.9以下になると硬化物の高分子量化が不十分となり物性低下が顕著となり、1.6を超えると活性水素成分が不十分なことにより物性低下や硬化不十分となる。
(Main agent NCO group/curing agent (amino group + hydroxyl group) ratio In mixing the main agent and the curing agent, the ratio of the NCO group in the main agent to the amino group or hydroxyl group, which is the active hydrogen component in the curing agent, is NCO group/ The (amino group+hydroxyl group) is preferably in the range of 0.9 to 1.6.When it is 0.9 or less, the high molecular weight of the cured product becomes insufficient and the physical properties become remarkable, and when it exceeds 1.6. Insufficient active hydrogen components lead to poor physical properties and insufficient curing.
(その他添加剤)
その他、硬化剤には、湿潤剤、消泡剤、顔料、耐候性付与剤などの添加剤類を必要に応じて配合することができる。
(Other additives)
In addition, additives such as a wetting agent, a defoaming agent, a pigment, and a weather resistance-imparting agent can be added to the curing agent as needed.
原材料
以下の実施例および比較例で用いた原材料は、次のとおりである。
サンニックスPP−2000: ポリオキシプロピレンジオール、平均分子量2000、OH価56.1mgKOH/g、三洋化成工業株式会社製
サンニックスGH−3000: ポリオキシプロピレントリオール、平均分子量3000、OH価:56.1mgKOH/g、三洋化成工業株式会社製
サンニックスGP−600: ポリオキシプロピレントリオール、平均分子量600、OH価:280.5mgKOH/g、三洋化成工業株式会社製
コロネートT−100: 2,4−トリレンジイソシアナート100%含有品、NCO含有量48.3質量%、東ソー株式会社製
トナー(主剤): 日弘ビックス株式会社製
石油系炭化水素溶剤: ノルマルパラフィン、イソパラフィン混合物、三協化学株式会社製
DETDA: Ethacure100、ジエチルトルエンジアミン、アルベマール社製
炭酸カルシウム: NS#100、炭酸カルシウム、日東粉化工業株式会社製
DINP: サンソサイザーDINP、ジイソノニルフタレート、新日本理化株式会社製
添加剤類: 楠本化成株式会社製
トナー(硬化剤): 日弘ビックス株式会社製
HN−2200:3−または4−メチル−1,2,3,6−テトラヒドロ無水フタル酸、日立化成株式会社製
2−エチルヘキサン酸: オクチル酸、東洋合成工業株式会社製
Ethacure300: ジメチルチオトルエンジアミン、アルベマール社製
エラスマー650P: ポリテトラメチレンオキシド−ジ−p−アミノベンゾエート、平均分子量888、イハラケミカル工業株式会社
クラレポリオールP−530: 3−メチル−1,5−ペンタンジオールとイソフタル酸との反応によって得られる芳香族系ポリエステルジオール、平均分子量500、OH価:224.4mgKOH/g、株式会社クラレ製
1,4−ブタンジオール: 試薬、ナカライテスク株式会社製
ニューポールPE−61:ポリオキシエチレンポリオキシプロピレンジオール、平均分子量1900、OH価:59mgKOH/g、三洋化成工業株式会社製
プライムポールFF−3550: ポリオキシプロピレントリオール、1級水酸基比率約70%、平均分子量5000、OH価:33.7mgKOH/g、三洋化成工業株式会社製
サンニックスPP−400: ポリオキシプロピレンジオール、平均分子量400、OH価280.5mgKOH/g、三洋化成工業株式会社製
サンニックスGH−5000: ポリオキシプロピレントリオール、平均分子量5000、OH価33.7mgKOH/g、三洋化成工業株式会社製
ニューポールBP−5P: ポリオキシプロピレンジオール、平均分子量500、OH価:209mgKOH/g、三洋化成工業株式会社製
コロネートT−80: 2,4−トリレンジイソシアナート/2,6−トリレンジイソシアナート=80/20(質量比)の混合物、NCO含有量48.3質量%、東ソー株式会社製
Ethacure420: 4,4′−メチレンビス(N−sec−ブチルアニリン)、芳香族二級ジアミン、アルベマール社製
MHAC−P: メチル−3,6−エンドメチレン−1,2,3,6−テトラヒドロ無水フタル酸、日立化成株式会社製
リカシッドMH−700:4−メチルヘキサヒドロ無水フタル酸/ヘキサヒドロ無水フタル酸=70/30(質量比)の混合物、新日本理化株式会社製
DSA:テトラプロペニル無水コハク酸、三洋化成工業株式会社製
無水フタル酸:試薬、和光純薬工業株式会社製
1−イソブチル−2−メチルイミダゾール: DABCO NC−IM、エアープロダクツジャパン株式会社製
ジオクチル錫ジラウレート: KS−1200A−1,共同薬品株式会社製
2−エチルヘキサン酸亜鉛(Zn8%): ニッカオクチックス亜鉛8%(T)、2−エチルヘキサン酸亜鉛とミネラルスピリットとの混合物、Znとして8%含有、日本化学産業株式会社製
2−エチルヘキサン酸鉛(Pb20%): ニッカオクチックス鉛20%TS、2−エチルヘキシル酸鉛とノルマルパラフィン、イソパラフィン混合物との混合物、Pbとして20%含有、日本化学産業株式会社製
Raw Materials The raw materials used in the following Examples and Comparative Examples are as follows.
Sannix PP-2000: Polyoxypropylene diol, average molecular weight 2000, OH value 56.1 mgKOH/g, Sanyo Chemical Industries Sannix GH-3000: Polyoxypropylene triol, average molecular weight 3000, OH value: 56.1 mgKOH /G, Sanyo Chemical Industry Co., Ltd. Sannix GP-600: Polyoxypropylene triol, average molecular weight 600, OH value: 280.5 mgKOH/g, Sanyo Chemical Industry Co., Ltd. Coronate T-100: 2,4-tolylenediene Product containing 100% isocyanate, NCO content 48.3% by mass, Tosoh Co., Ltd. Toner (main ingredient): Hihiro Vix Co., Ltd. Petroleum hydrocarbon solvent: Normal paraffin, isoparaffin mixture, Sankyo Chemical Co., Ltd. DETDA : Ethacure100, diethyltoluenediamine, manufactured by Albemarle Calcium carbonate: NS#100, calcium carbonate, manufactured by Nitto Koka Kogyo Co., Ltd. DINP: Sansocizer DINP, diisononyl phthalate, manufactured by Shin Nippon Rika Co., Ltd. Additives: Kusumoto Kasei Co., Ltd. Toner (curing agent): HN-2200: 3- or 4-methyl-1,2,3,6-tetrahydrophthalic anhydride, manufactured by Hikko Vix Co., Ltd., 2-ethylhexanoic acid: octyl acid, manufactured by Hitachi Chemical Toyo Gosei Co., Ltd. Ethacure 300: Dimethylthiotoluenediamine, Albemarle Erasmer 650P: Polytetramethylene oxide-di-p-aminobenzoate, average molecular weight 888, Ihara Chemical Industry Co., Ltd. Kuraray Polyol P-530: 3-Methyl Aromatic polyester diol obtained by reaction of -1,5-pentanediol and isophthalic acid, average molecular weight 500, OH value: 224.4 mgKOH/g, Kuraray Co., Ltd. 1,4-butanediol: reagent, Nacalai Tesque Newpol PE-61: Polyoxyethylene polyoxypropylene diol, average molecular weight 1900, OH value: 59 mgKOH/g, Sanyo Kasei Co., Ltd. Primepol FF-3550: Polyoxypropylene triol, primary hydroxyl ratio of approx. 70%, average molecular weight 5000, OH value: 33.7 mgKOH/g, Sanyo Kasei Co., Ltd. Sannix PP-400: polyoxypropylene diol, average molecular weight 400, OH value 280.5 mgKOH/g, Sanyo Chemical Industry Co., Ltd. Sannix GH-5000: Polyoxypropylene triol, average molecular weight 5000, OH number 33.7 mgKOH/g, Sanyo Chemical Co., Ltd. Newpol BP-5P: Polyoxypropylene diol, average molecular weight 500, OH value: 209 mgKOH/g, Sanyo Kasei Co., Ltd. Coronate T-80: 2,4-tolylene diisocyanate/2,6-tolylene diisocyanate=80/20 (mass ratio) mixture, NCO content 48 .3% by mass, Tosoh Corporation Ethacure 420: 4,4'-methylenebis(N-sec-butylaniline), aromatic secondary diamine, Albemarle's MHAC-P: Methyl-3,6-endomethylene-1, 2,3,6-Tetrahydrophthalic anhydride, manufactured by Hitachi Chemical Co., Ltd. RIKACID MH-700: 4-methylhexahydrophthalic anhydride/hexahydrophthalic anhydride = 70/30 (mass ratio) mixture, Shin Nippon Rika Co., Ltd. DSA: Tetrapropenyl succinic anhydride, Sanyo Kasei Co., Ltd. Phthalic anhydride: Reagent, Wako Pure Chemical Industries, Ltd. 1-Isobutyl-2-methylimidazole: DABCO NC-IM, Air Products Japan Co., Dioctyl tin Dilaurate: KS-1200A-1, manufactured by Kyodo Chemical Co., Ltd. Zinc 2-ethylhexanoate (Zn 8%): Nikka Octix zinc 8% (T), a mixture of zinc 2-ethylhexanoate and mineral spirits, Zn 8 % Content, manufactured by Nippon Kagaku Sangyo Co., Ltd. Lead 2-ethylhexanoate (Pb 20%): Nikkaoctix lead 20% TS, a mixture of lead 2-ethylhexylate and normal paraffin, isoparaffin, 20% as Pb, Japan Made by Chemical Industry Co., Ltd.
主剤の調製
表1〜11の配合に従って、四つ口フラスコにポリオールと溶剤を仕込み、次いでポリイソシアナート化合物を仕込んだ。その後攪拌しながら90〜100℃で3〜7時間反応させて、反応終了後トナーを添加して各主剤を得た。
Preparation of Main Agent According to the formulations shown in Tables 1 to 11, a four-necked flask was charged with a polyol and a solvent, and then a polyisocyanate compound was charged. Then, the mixture was reacted with stirring at 90 to 100° C. for 3 to 7 hours, and after completion of the reaction, toner was added to obtain each main agent.
硬化剤の調製
表1〜11の配合に従って、金属容器に液物を仕込み、攪拌機(ディゾルバー羽根)で低速混合し均一にした後、炭酸カルシウムを配合し1500rpmで15分間混合して各硬化剤を得た。
Preparation of Hardening Agent According to the formulations in Tables 1 to 11, the liquid material was charged into a metal container and mixed at low speed with a stirrer (dissolver blade) to homogenize, and then calcium carbonate was blended and mixed at 1500 rpm for 15 minutes to obtain each curing agent. Obtained.
比較例1(表1)
硬化促進剤を使用しない例である。良好な塗膜物性を示しかつ十分な可使時間を確保しているものの、当日中に次工程の施工ができなかった。
Comparative Example 1 (Table 1)
In this example, no curing accelerator is used. Although it showed good coating properties and secured a sufficient pot life, the next step could not be completed during the day.
実施例1〜2、比較例2(表1)
硬化促進剤に酸無水物であるHN−2200を使用した例である。酸無水物を主剤に添加した実施例1、酸無水物を二液混合時に添加した実施例2は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を予め硬化剤に添加し翌日使用した比較例2は十分な可使時間が確保できなかった。
Examples 1-2, Comparative Example 2 (Table 1)
This is an example of using HN-2200 which is an acid anhydride as a curing accelerator. Example 1 in which an acid anhydride was added to the main component, and Example 2 in which an acid anhydride was added at the time of mixing two liquids exhibited good coating film physical properties and ensured a sufficient pot life, and the next step during the day. Was possible. In Comparative Example 2 in which the acid anhydride was added to the curing agent in advance and used the next day, sufficient pot life could not be secured.
比較例3〜5(表1)
硬化促進剤に2−エチルヘキサン酸を使用した例である。2−エチルヘキサン酸を主剤に添加した比較例3、2−エチルヘキサン酸を二液混合時に添加した比較例4、2−エチルヘキサン酸を硬化剤に添加した比較例5は、いずれも十分な可使時間を確保できなかった。
Comparative Examples 3-5 (Table 1)
This is an example of using 2-ethylhexanoic acid as a curing accelerator. Both Comparative Example 3 in which 2-ethylhexanoic acid was added to the main agent, Comparative Example 4 in which 2-ethylhexanoic acid was added at the time of mixing two liquids, and Comparative Example 5 in which 2-ethylhexanoic acid was added to the curing agent were sufficient. I couldn't secure the pot life.
実施例3、比較例6〜7(表2)
芳香族ポリアミンであるDETDAとEthacure300を併用した例である。酸無水物を主剤に添加した実施例3は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を使用しない比較例6は、当日中に次工程の施工ができなかった。2−エチルヘキサンを硬化剤に添加した比較例7は十分な可使時間を確保できなかった。
Example 3, Comparative Examples 6 to 7 (Table 2)
This is an example in which DETDA, which is an aromatic polyamine, and Ethacure 300 are used in combination. In Example 3 in which the acid anhydride was added to the main component, good coating film properties were exhibited, and the next step could be performed during the day while ensuring a sufficient pot life. In Comparative Example 6 in which the acid anhydride was not used, the next step could not be performed during the day. Comparative Example 7 in which 2-ethylhexane was added to the curing agent could not secure a sufficient pot life.
実施例4、比較例8〜9(表2)
芳香族ポリアミンであるDETDAとエラスマー650Pを併用した例である。酸無水物を主剤に添加した実施例4は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を使用しない比較例8は、当日中に次工程の施工ができなかった。2−エチルヘキサンを硬化剤に添加した比較例9は十分な可使時間を確保できなかった。
Example 4, Comparative Examples 8-9 (Table 2)
This is an example in which DETDA which is an aromatic polyamine and Erasmer 650P are used in combination. In Example 4 in which the acid anhydride was added to the main component, the next step could be performed during the day while exhibiting good coating film physical properties and ensuring a sufficient pot life. In Comparative Example 8 in which the acid anhydride was not used, the next step could not be performed during the day. In Comparative Example 9 in which 2-ethylhexane was added to the curing agent, sufficient pot life could not be secured.
実施例5、比較例10〜11(表3)
芳香族ポリアミンであるDETDAと芳香族ポリエステルポリオールであるクラレポリオールP−530を5当量%併用した例である(DETDA/クラレポリオール=95/5(当量比))。酸無水物を主剤に添加した実施例5は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を使用しない比較例10は、当日中に次工程の施工ができなかった。2−エチルヘキサンを硬化剤に添加した比較例11は十分な可使時間を確保できなかった。
Example 5, Comparative Examples 10-11 (Table 3)
This is an example in which 5 equivalent% of DETDA which is an aromatic polyamine and Kuraray polyol P-530 which is an aromatic polyester polyol are used in combination (DETDA/Kuraray polyol=95/5 (equivalent ratio)). In Example 5 in which an acid anhydride was added to the main component, good coating film properties were exhibited and the next step could be performed during the day while ensuring a sufficient pot life. In Comparative Example 10 using no acid anhydride, the next step could not be performed during the day. Comparative Example 11 in which 2-ethylhexane was added to the curing agent could not secure a sufficient pot life.
実施例6、比較例12〜13(表3)
芳香族ポリアミンであるDETDAと芳香族ポリエステルポリオールであるクラレポリオールP−530を10当量%併用した例である(DETDA/クラレポリオール=90/10(当量比))。酸無水物を主剤に添加した実施例6は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を使用しない比較例12は、当日中に次工程の施工ができなかった。2−エチルヘキサンを硬化剤に添加した比較例13は十分な可使時間を確保できなかった。
Example 6, Comparative Examples 12 to 13 (Table 3)
This is an example in which 10 equivalent% of DETDA which is an aromatic polyamine and Kuraray polyol P-530 which is an aromatic polyester polyol are used in combination (DETDA/Kuraray polyol=90/10 (equivalent ratio)). In Example 6 in which the acid anhydride was added to the main component, good coating film properties were exhibited and the next step could be performed during the day while ensuring a sufficient pot life. In Comparative Example 12, which did not use the acid anhydride, the next step could not be performed during the day. In Comparative Example 13 in which 2-ethylhexane was added to the curing agent, sufficient pot life could not be secured.
実施例7、比較例14(表4)
芳香族ポリアミンであるDETDAと短鎖ポリオールの1,4−ブタンジオールを併用した例である。酸無水物を主剤に添加した実施例7は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を使用しない比較例14は、当日中に次工程の施工ができなかった。
Example 7, Comparative Example 14 (Table 4)
This is an example in which DETDA which is an aromatic polyamine and 1,4-butanediol which is a short chain polyol are used in combination. In Example 7 in which an acid anhydride was added to the main component, good coating film properties were exhibited and the next step could be performed during the day while ensuring a sufficient pot life. In Comparative Example 14 which did not use the acid anhydride, the next step could not be performed during the day.
実施例8、比較例15(表4)
芳香族ポリアミンであるDETDAとポリオキシエチレンポリオキシプロピレンジオールであるニューポールPE−61を併用した例である。酸無水物を主剤に添加した実施例8は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を使用しない比較例15は、当日中に次工程の施工ができなかった。
Example 8, Comparative Example 15 (Table 4)
This is an example in which DETDA which is an aromatic polyamine and Newpol PE-61 which is a polyoxyethylene polyoxypropylene diol are used in combination. In Example 8 in which an acid anhydride was added to the main component, good coating film properties were exhibited and the next step could be performed during the day while ensuring a sufficient pot life. In Comparative Example 15 not using the acid anhydride, the next step could not be performed during the day.
実施例9、比較例16(表4)
芳香族ポリアミンであるDETDAと1級水酸基比率約70%のポリオキシプロピレントリオールであるプライムポールFF−3550を併用した例である。酸無水物を主剤に添加した実施例9は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を使用しない比較例16は、当日中に次工程の施工ができなかった。
Example 9, Comparative Example 16 (Table 4)
This is an example in which DETDA which is an aromatic polyamine and Primepol FF-3550 which is a polyoxypropylene triol having a primary hydroxyl group ratio of about 70% are used in combination. In Example 9 in which an acid anhydride was added to the main component, good coating film physical properties were obtained and the next step could be performed during the day while ensuring a sufficient pot life. In Comparative Example 16 which did not use the acid anhydride, the next step could not be performed during the day.
実施例10、比較例17(表5)
芳香族ポリアミンであるDETDAと平均分子量400のポリオキシプロピレンジオールであるサンニックスPP−400を併用した例である。酸無水物を主剤に添加した実施例10は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を使用しない比較例17は、当日中に次工程の施工ができなかった。
Example 10, Comparative Example 17 (Table 5)
This is an example in which DETDA which is an aromatic polyamine and Sannix PP-400 which is a polyoxypropylene diol having an average molecular weight of 400 are used in combination. In Example 10 in which the acid anhydride was added to the main component, good coating film properties were exhibited, and the next step could be performed during the day while ensuring a sufficient pot life. In Comparative Example 17 in which the acid anhydride was not used, the next step could not be performed during the day.
実施例11、比較例18(表5)
芳香族ポリアミンであるDETDAと平均分子量2000のポリオキシプロピレンジオールであるサンニックスPP−2000を併用した例である。酸無水物を主剤に添加した実施例11は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を使用しない比較例18は、当日中に次工程の施工ができなかった。
Example 11, Comparative Example 18 (Table 5)
In this example, DETDA which is an aromatic polyamine and Sannix PP-2000 which is a polyoxypropylene diol having an average molecular weight of 2000 are used in combination. In Example 11 in which the acid anhydride was added to the main component, good coating film properties were exhibited and the next step could be performed during the day while ensuring a sufficient pot life. In Comparative Example 18, which did not use the acid anhydride, the next step could not be performed during the day.
実施例12、比較例19(表5)
芳香族ポリアミンであるDETDAと平均分子量5000のポリオキシプロピレントリオールであるサンニックスGH−5000を併用した例である。酸無水物を主剤に添加した実施例12は、良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。酸無水物を使用しない比較例19は、当日中に次工程の施工ができなかった。
Example 12, Comparative Example 19 (Table 5)
This is an example in which DETDA which is an aromatic polyamine and Sannix GH-5000 which is polyoxypropylene triol having an average molecular weight of 5000 are used in combination. In Example 12 in which the acid anhydride was added to the main component, the next step could be performed during the day while exhibiting good coating film properties and ensuring a sufficient pot life. In Comparative Example 19 which did not use the acid anhydride, the next step could not be performed during the day.
比較例20、実施例13〜16(表6)
芳香族ポリアミンであるDETDAとEthacure420を併用し、主剤に添加する酸無水物であるHN−2200の添加量を変えた例である。酸無水物を使用しない比較例20は当日中に次工程の施工ができなかった。酸無水物を0.25質量%使用した実施例13、酸無水物を0.50質量%使用した実施例14、酸無水物を1.00質量%使用した実施例15、酸無水物を2.00質量%使用した実施例16は、いずれも良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。
Comparative Example 20, Examples 13 to 16 (Table 6)
This is an example in which DETDA which is an aromatic polyamine and Ethacure 420 are used in combination and the addition amount of HN-2200 which is an acid anhydride added to the main agent is changed. In Comparative Example 20 which did not use the acid anhydride, the next step could not be performed during the day. Example 13 using 0.25 mass% of acid anhydride, Example 14 using 0.50 mass% of acid anhydride, Example 15 using 1.00 mass% of acid anhydride, 2 of acid anhydride In Example 16 in which 0.000 mass% was used, good coating film physical properties were obtained and the next step could be performed during the day while ensuring a sufficient pot life.
実施例17〜19(表7)
酸無水物を使用し、芳香族ポリアミンであるDETDAとEthacure420を併用し、DETDAとEthacure420の当量比を変えた例である。実施例17〜19のいずれも良好な塗膜物性を示しかつ低温(10℃)においても十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。
Examples 17-19 (Table 7)
This is an example in which an acid anhydride is used, DETDA and Ethacure 420 which are aromatic polyamines are used in combination, and the equivalent ratio of DETDA and Ethacure 420 is changed. All of Examples 17 to 19 showed good coating film physical properties, and it was possible to carry out the next step during the day while ensuring a sufficient pot life even at a low temperature (10°C).
実施例20、21(表8)
酸無水物を使用し、NCO/活性水素当量比を変えた例である。実施例20、21のいずれも良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。
Examples 20, 21 (Table 8)
In this example, an acid anhydride is used and the NCO/active hydrogen equivalent ratio is changed. In each of Examples 20 and 21, good coating film physical properties were exhibited and, while ensuring a sufficient pot life, it was possible to perform the next step during the day.
実施例22〜26(表9)
各種酸無水物を使用した例である。HN−2200(3−または4−メチル−1,2,3,6−テトラヒドロ無水フタル酸)を使用した実施例22、MHAC−P(メチル−3,6−エンドメチレン−1,2,3,6−テトラヒドロ無水フタル酸)を使用した実施例23、リカシッドMH−700(4−メチルヘキサヒドロ無水フタル酸/ヘキサヒドロ無水フタル酸=70/30(質量比)の混合物)を使用した実施例24、DSA(テトラプロペニル無水コハク酸)を使用した実施例25、無水フタル酸を使用した実施例26は、いずれも良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。
Examples 22-26 (Table 9)
This is an example of using various acid anhydrides. Example 22 using HN-2200 (3- or 4-methyl-1,2,3,6-tetrahydrophthalic anhydride), MHAC-P (methyl-3,6-endomethylene-1,2,3,3) 6-tetrahydrophthalic anhydride) in Example 23, Ricacid MH-700 (4-methylhexahydrophthalic anhydride/hexahydrophthalic anhydride=70/30 (mass ratio) mixture in Example 24). Example 25 using DSA (tetrapropenyl succinic anhydride) and Example 26 using phthalic anhydride both showed good coating film properties and ensured a sufficient pot life while The construction of the process was possible.
実施例27〜30(表10)
酸無水物と各種硬化促進剤を併用した例である。1−イソブチル−2−メチルイミダゾールを併用した実施例27、ジオクチル錫ジラウレートを併用した実施例28、2−エチルヘキサン酸亜鉛(Zn8%)を併用した実施例29、2−エチルヘキサン酸鉛(Pb20%)を併用した実施例30は、いずれも良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。
Examples 27-30 (Table 10)
This is an example in which an acid anhydride and various curing accelerators are used in combination. Example 27 using 1-isobutyl-2-methylimidazole, Example 28 using dioctyltin dilaurate, Example 29 using zinc 2-ethylhexanoate (Zn 8%), Lead 2-ethylhexanoate (Pb20) %), all of Example 30 showed good coating film physical properties and ensured a sufficient pot life, and it was possible to carry out the next step during the day.
実施例31、比較例21、22(表11)
酸無水物を使用し、炭酸カルシウムとDINPの使用量を変えた例である。炭酸カルシウムとDINPを使用した実施例31は良好な塗膜物性を示しかつ十分な可使時間を確保しながら、当日中に次工程の施工が可能であった。炭酸カルシウムとDINPを使用しない比較例21は、十分な可使時間が確保できず、塗膜物性も不十分であった。炭酸カルシウムを使用せずDINPを使用した比較例22は、塗膜物性が不十分であった。
Example 31, Comparative Examples 21 and 22 (Table 11)
In this example, an acid anhydride is used and the amounts of calcium carbonate and DINP used are changed. In Example 31 using calcium carbonate and DINP, good coating film physical properties were obtained and the next step could be performed during the day while ensuring a sufficient pot life. In Comparative Example 21 in which calcium carbonate and DINP were not used, sufficient pot life could not be secured and the coating film physical properties were also insufficient. Comparative Example 22 in which DINP was used without using calcium carbonate had insufficient coating film physical properties.
なお、各評価項目の測定方法は次のとおりである。 The measuring method of each evaluation item is as follows.
[NCO(質量%)]
200mLの三角フラスコに主剤約1gを精秤し、これに0.5Nジ−n−ブチルアミン(トルエン溶液)10mL、トルエン10mLおよび適量のブロムフェノールブルーを加えた後メタノール約100mLを加え溶解する。この混合液を0.25N塩酸溶液で滴定する。NCO(質量%)は以下の式によって求められる。
NCO(質量%)=(ブランク滴定値−0.5N塩酸溶液滴定値)×4.202×0.25N塩酸溶液のファクター×0.25÷サンプル重量
[NCO (mass %)]
About 1 g of the main ingredient is precisely weighed in a 200 mL Erlenmeyer flask, 10 mL of 0.5N di-n-butylamine (toluene solution), 10 mL of toluene and an appropriate amount of bromphenol blue are added, and then about 100 mL of methanol is added and dissolved. The mixture is titrated with a 0.25N hydrochloric acid solution. NCO (mass %) is calculated by the following formula.
NCO (mass %)=(blank titration value-0.5N hydrochloric acid solution titration value)*4.202*0.25N hydrochloric acid solution factor*0.25/sample weight
[可使時間(分)]
23℃、湿度50%の空気循環型環境試験室内において、主剤と硬化剤を所定の割合で攪拌・混合開始から、BH型粘度計で2rpmにおける粘度が60,000mPa・sになるまでの時間を測定した。
[Working time (minutes)]
In an air-circulation environment test chamber at 23°C and a humidity of 50%, the time from the start of stirring and mixing the main agent and the curing agent at a predetermined ratio until the viscosity at 2 rpm of the BH viscometer becomes 60,000 mPa·s. It was measured.
[施工可能時間(時間)]
23℃、湿度50%の空気循環式型環境試験室内において、主剤と硬化剤を所定の割合で攪拌・混合した防水材を2kg/m2塗布し、完全には硬化していないが、塗膜上を靴で歩行が可能となり、次工程の作業を開始できる時間を測定した。
[Constructable time (hours)]
In an air-circulation type environmental test room with a temperature of 23°C and a humidity of 50%, 2 kg/m 2 of a waterproof material prepared by agitating and mixing a main agent and a curing agent at a predetermined ratio was applied. The time when the user was able to walk on the top with shoes and started the work of the next step was measured.
[引張強さ(N/mm2)]
養生条件を23℃で7日とした試験片について、JIS A 6021に基づいて測定を行った(JIS A 6021のウレタンゴム系高伸長形(旧1類)では引張強さは2.3N/mm2以上)。
[Tensile strength (N/mm 2 )]
The test piece was set at 23° C. for 7 days, and the test piece was measured according to JIS A 6021. (In the urethane rubber high elongation type of JIS A 6021 (former type 1), the tensile strength is 2.3 N/mm. 2 or more).
[破断時の伸び率(%)]
養生条件を23℃で7日とした試験片について、JIS A 6021に基づいて測定を行った(JIS A 6021のウレタンゴム系高伸長形(旧1類)では破断時の伸び率は450%以上)。
[Elongation at break (%)]
A test piece that was cured at 23° C. for 7 days was measured according to JIS A 6021 (in the urethane rubber high elongation type of JIS A 6021 (former type 1), the elongation at break is 450% or more). ).
[引裂き強さ(N/mm)]
養生条件を23℃で7日とした試験片について、JIS A 6021に基づいて測定を行った(JIS A 6021のウレタンゴム系高伸長形(旧1類)では引裂き強さは14N/mm以上)。
[Tear strength (N/mm)]
Measurement was performed based on JIS A 6021 for a test piece whose curing condition was 23°C for 7 days (the tear strength is 14 N/mm or more in the urethane rubber high elongation type of JIS A 6021 (former type 1)). ..
[耐熱性 引っ張り強さ比(%)と破断時の伸び率(%)]
80℃の乾燥機に28日(JIS A 6021では80℃で7日)入れて加熱処理した試験片について、JIS A 6021に基づいて行い、処理前に対する引張強さ比(%)および破断時の伸び率(%)を求めた。
[Heat resistance Tensile strength ratio (%) and elongation at break (%)]
A test piece that had been heat-treated by putting it in a dryer at 80°C for 28 days (80 days at 80°C in JIS A 6021) was tested according to JIS A 6021. The elongation rate (%) was calculated.
本発明の組成物は、速硬化性ウレタン防水材として、建築物の屋上やマンションなどの集合住宅のベランダなどの防水に好適に使用することができる。 The composition of the present invention can be suitably used as a fast-curing urethane waterproof material for waterproofing roofs of buildings and balconies of collective housing such as condominiums.
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