WO2023106317A1 - 水系塗料 - Google Patents
水系塗料 Download PDFInfo
- Publication number
- WO2023106317A1 WO2023106317A1 PCT/JP2022/045036 JP2022045036W WO2023106317A1 WO 2023106317 A1 WO2023106317 A1 WO 2023106317A1 JP 2022045036 W JP2022045036 W JP 2022045036W WO 2023106317 A1 WO2023106317 A1 WO 2023106317A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- water
- graft
- polyorganosiloxane
- polymer
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 329
- 238000000576 coating method Methods 0.000 title claims abstract description 124
- 239000011248 coating agent Substances 0.000 title claims abstract description 122
- 229920000578 graft copolymer Polymers 0.000 claims abstract description 231
- 229920000642 polymer Polymers 0.000 claims abstract description 205
- 239000002131 composite material Substances 0.000 claims abstract description 23
- 239000000178 monomer Substances 0.000 claims description 311
- 239000003973 paint Substances 0.000 claims description 249
- 239000000203 mixture Substances 0.000 claims description 136
- 238000004519 manufacturing process Methods 0.000 claims description 104
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 81
- 239000003995 emulsifying agent Substances 0.000 claims description 53
- 239000002245 particle Substances 0.000 claims description 51
- 230000009477 glass transition Effects 0.000 claims description 33
- 229920002554 vinyl polymer Polymers 0.000 claims description 33
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 claims description 30
- 125000005375 organosiloxane group Chemical group 0.000 claims description 25
- 239000002519 antifouling agent Substances 0.000 claims description 20
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 19
- 230000000379 polymerizing effect Effects 0.000 claims description 18
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 15
- 239000012986 chain transfer agent Substances 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 abstract description 11
- 239000004816 latex Substances 0.000 description 65
- 229920000126 latex Polymers 0.000 description 65
- 238000000034 method Methods 0.000 description 55
- 230000008901 benefit Effects 0.000 description 50
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 45
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 40
- -1 dimethylsilyloxy units Chemical group 0.000 description 34
- 239000011521 glass Substances 0.000 description 28
- 230000003373 anti-fouling effect Effects 0.000 description 27
- 238000006116 polymerization reaction Methods 0.000 description 27
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 239000003960 organic solvent Substances 0.000 description 16
- 230000009257 reactivity Effects 0.000 description 15
- 238000002360 preparation method Methods 0.000 description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 11
- 229920001519 homopolymer Polymers 0.000 description 11
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 11
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 8
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 8
- 238000009472 formulation Methods 0.000 description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- 230000002378 acidificating effect Effects 0.000 description 7
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003999 initiator Substances 0.000 description 6
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- 125000005702 oxyalkylene group Chemical group 0.000 description 6
- 125000006353 oxyethylene group Chemical group 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 5
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
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- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 4
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 125000002843 carboxylic acid group Chemical group 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 3
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 3
- LZMNXXQIQIHFGC-UHFFFAOYSA-N 3-[dimethoxy(methyl)silyl]propyl 2-methylprop-2-enoate Chemical compound CO[Si](C)(OC)CCCOC(=O)C(C)=C LZMNXXQIQIHFGC-UHFFFAOYSA-N 0.000 description 3
- SXIFAEWFOJETOA-UHFFFAOYSA-N 4-hydroxy-butyl Chemical group [CH2]CCCO SXIFAEWFOJETOA-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 125000005370 alkoxysilyl group Chemical group 0.000 description 3
- 125000005336 allyloxy group Chemical group 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000011258 core-shell material Substances 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 3
- 238000002296 dynamic light scattering Methods 0.000 description 3
- 238000010556 emulsion polymerization method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 125000003700 epoxy group Chemical group 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- YAJYJWXEWKRTPO-UHFFFAOYSA-N 2,3,3,4,4,5-hexamethylhexane-2-thiol Chemical compound CC(C)C(C)(C)C(C)(C)C(C)(C)S YAJYJWXEWKRTPO-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- IGRYVRNQZARURF-UHFFFAOYSA-N 2-(dimethoxymethylsilyl)ethyl 2-methylprop-2-enoate Chemical compound COC(OC)[SiH2]CCOC(=O)C(C)=C IGRYVRNQZARURF-UHFFFAOYSA-N 0.000 description 2
- AFABGHUZZDYHJO-UHFFFAOYSA-N 2-Methylpentane Chemical compound CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 2
- WMYINDVYGQKYMI-UHFFFAOYSA-N 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Chemical compound CCC(CO)(CO)COCC(CC)(CO)CO WMYINDVYGQKYMI-UHFFFAOYSA-N 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 2
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- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- HHHPYRGQUSPESB-UHFFFAOYSA-N 3-(dimethoxymethylsilyl)propyl prop-2-enoate Chemical compound COC(OC)[SiH2]CCCOC(=O)C=C HHHPYRGQUSPESB-UHFFFAOYSA-N 0.000 description 2
- FFWSICBKRCICMR-UHFFFAOYSA-N 5-methyl-2-hexanone Chemical compound CC(C)CCC(C)=O FFWSICBKRCICMR-UHFFFAOYSA-N 0.000 description 2
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- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- XMSXQFUHVRWGNA-UHFFFAOYSA-N Decamethylcyclopentasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 XMSXQFUHVRWGNA-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
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- DXVYLFHTJZWTRF-UHFFFAOYSA-N Ethyl isobutyl ketone Chemical compound CCC(=O)CC(C)C DXVYLFHTJZWTRF-UHFFFAOYSA-N 0.000 description 2
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- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
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- HAURRGANAANPSQ-UHFFFAOYSA-N cis-2,4,6-Trimethyl-2,4,6-triphenylcyclotrisiloxane Chemical group O1[Si](C)(C=2C=CC=CC=2)O[Si](C)(C=2C=CC=CC=2)O[Si]1(C)C1=CC=CC=C1 HAURRGANAANPSQ-UHFFFAOYSA-N 0.000 description 2
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- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
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- 239000006166 lysate Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
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- 239000003921 oil Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
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- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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- 239000007870 radical polymerization initiator Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
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- 150000003839 salts Chemical class 0.000 description 2
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- WURGXGVFSMYFCG-UHFFFAOYSA-N dichlofluanid Chemical compound CN(C)S(=O)(=O)N(SC(F)(Cl)Cl)C1=CC=CC=C1 WURGXGVFSMYFCG-UHFFFAOYSA-N 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- UYAAVKFHBMJOJZ-UHFFFAOYSA-N diimidazo[1,3-b:1',3'-e]pyrazine-5,10-dione Chemical compound O=C1C2=CN=CN2C(=O)C2=CN=CN12 UYAAVKFHBMJOJZ-UHFFFAOYSA-N 0.000 description 1
- XYYQWMDBQFSCPB-UHFFFAOYSA-N dimethoxymethylsilane Chemical compound COC([SiH3])OC XYYQWMDBQFSCPB-UHFFFAOYSA-N 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 1
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical compound CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 description 1
- VDCSGNNYCFPWFK-UHFFFAOYSA-N diphenylsilane Chemical compound C=1C=CC=CC=1[SiH2]C1=CC=CC=C1 VDCSGNNYCFPWFK-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 1
- GEEMMWCETUNGJC-UHFFFAOYSA-N dodecan-1-amine;triphenylborane Chemical compound CCCCCCCCCCCCN.C1=CC=CC=C1B(C=1C=CC=CC=1)C1=CC=CC=C1 GEEMMWCETUNGJC-UHFFFAOYSA-N 0.000 description 1
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000009503 electrostatic coating Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- ZLNAFSPCNATQPQ-UHFFFAOYSA-N ethenyl-dimethoxy-methylsilane Chemical compound CO[Si](C)(OC)C=C ZLNAFSPCNATQPQ-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- SYGAXBISYRORDR-UHFFFAOYSA-N ethyl 2-(hydroxymethyl)prop-2-enoate Chemical compound CCOC(=O)C(=C)CO SYGAXBISYRORDR-UHFFFAOYSA-N 0.000 description 1
- 229940093499 ethyl acetate Drugs 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 125000005462 imide group Chemical group 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- RFUCOAQWQVDBEU-UHFFFAOYSA-N methyl 2-(hydroxymethyl)prop-2-enoate Chemical compound COC(=O)C(=C)CO RFUCOAQWQVDBEU-UHFFFAOYSA-N 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- JCOZYKGDMBXAJX-UHFFFAOYSA-N n-[3-[phenyl(dipropoxy)silyl]propyl]-4-prop-1-en-2-ylbenzamide Chemical compound C=1C=CC=CC=1[Si](OCCC)(OCCC)CCCNC(=O)C1=CC=C(C(C)=C)C=C1 JCOZYKGDMBXAJX-UHFFFAOYSA-N 0.000 description 1
- 229940094933 n-dodecane Drugs 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- SCDFWNDQCMAYQI-UHFFFAOYSA-N octadecan-1-amine;triphenylborane Chemical compound CCCCCCCCCCCCCCCCCCN.C1=CC=CC=C1B(C=1C=CC=CC=1)C1=CC=CC=C1 SCDFWNDQCMAYQI-UHFFFAOYSA-N 0.000 description 1
- KZCOBXFFBQJQHH-UHFFFAOYSA-N octane-1-thiol Chemical compound CCCCCCCCS KZCOBXFFBQJQHH-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 125000003566 oxetanyl group Chemical group 0.000 description 1
- QUPCNWFFTANZPX-UHFFFAOYSA-M paramenthane hydroperoxide Chemical compound [O-]O.CC(C)C1CCC(C)CC1 QUPCNWFFTANZPX-UHFFFAOYSA-M 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- ZQADNTPYZIZRRM-UHFFFAOYSA-L phenyl(dipyridin-2-yl)bismuth(2+);dichloride Chemical compound C=1C=CC=NC=1[Bi](Cl)(C=1N=CC=CC=1)(Cl)C1=CC=CC=C1 ZQADNTPYZIZRRM-UHFFFAOYSA-L 0.000 description 1
- XEBWQGVWTUSTLN-UHFFFAOYSA-M phenylmercury acetate Chemical compound CC(=O)O[Hg]C1=CC=CC=C1 XEBWQGVWTUSTLN-UHFFFAOYSA-M 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229940116423 propylene glycol diacetate Drugs 0.000 description 1
- WJSXSXUHWBSPEP-UHFFFAOYSA-N pyridine;triphenylborane Chemical compound C1=CC=NC=C1.C1=CC=CC=C1B(C=1C=CC=CC=1)C1=CC=CC=C1 WJSXSXUHWBSPEP-UHFFFAOYSA-N 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000012966 redox initiator Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000005504 styryl group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- NVBFHJWHLNUMCV-UHFFFAOYSA-N sulfamide Chemical compound NS(N)(=O)=O NVBFHJWHLNUMCV-UHFFFAOYSA-N 0.000 description 1
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- UQMOLLPKNHFRAC-UHFFFAOYSA-N tetrabutyl silicate Chemical compound CCCCO[Si](OCCCC)(OCCCC)OCCCC UQMOLLPKNHFRAC-UHFFFAOYSA-N 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- CZFVBIJYVFABOJ-UHFFFAOYSA-N tetraoctylsilane Chemical compound CCCCCCCC[Si](CCCCCCCC)(CCCCCCCC)CCCCCCCC CZFVBIJYVFABOJ-UHFFFAOYSA-N 0.000 description 1
- ZUEKXCXHTXJYAR-UHFFFAOYSA-N tetrapropan-2-yl silicate Chemical compound CC(C)O[Si](OC(C)C)(OC(C)C)OC(C)C ZUEKXCXHTXJYAR-UHFFFAOYSA-N 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- WJCNZQLZVWNLKY-UHFFFAOYSA-N thiabendazole Chemical compound S1C=NC(C=2NC3=CC=CC=C3N=2)=C1 WJCNZQLZVWNLKY-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- HYVWIQDYBVKITD-UHFFFAOYSA-N tolylfluanid Chemical compound CN(C)S(=O)(=O)N(SC(F)(Cl)Cl)C1=CC=C(C)C=C1 HYVWIQDYBVKITD-UHFFFAOYSA-N 0.000 description 1
- XNFIRYXKTXAHAC-UHFFFAOYSA-N tralopyril Chemical compound BrC1=C(C(F)(F)F)NC(C=2C=CC(Cl)=CC=2)=C1C#N XNFIRYXKTXAHAC-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- DENFJSAFJTVPJR-UHFFFAOYSA-N triethoxy(ethyl)silane Chemical compound CCO[Si](CC)(OCC)OCC DENFJSAFJTVPJR-UHFFFAOYSA-N 0.000 description 1
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 description 1
- ZNOCGWVLWPVKAO-UHFFFAOYSA-N trimethoxy(phenyl)silane Chemical compound CO[Si](OC)(OC)C1=CC=CC=C1 ZNOCGWVLWPVKAO-UHFFFAOYSA-N 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical class [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229940043810 zinc pyrithione Drugs 0.000 description 1
- PICXIOQBANWBIZ-UHFFFAOYSA-N zinc;1-oxidopyridine-2-thione Chemical compound [Zn+2].[O-]N1C=CC=CC1=S.[O-]N1C=CC=CC1=S PICXIOQBANWBIZ-UHFFFAOYSA-N 0.000 description 1
- DUBNHZYBDBBJHD-UHFFFAOYSA-L ziram Chemical compound [Zn+2].CN(C)C([S-])=S.CN(C)C([S-])=S DUBNHZYBDBBJHD-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/10—Block or graft copolymers containing polysiloxane sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
- C08F290/14—Polymers provided for in subclass C08G
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1675—Polyorganosiloxane-containing compositions
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/68—Particle size between 100-1000 nm
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/80—Processes for incorporating ingredients
Definitions
- the present invention relates to water-based paints.
- Patent Document 1 discloses an antifouling coating composition containing a hydrolyzable resin having a silicon-containing group and a metal atom-containing group containing a divalent metal atom M, and a thermoplastic resin and/or a plasticizer. is disclosed.
- Water-based paints are the mainstream of paints, but in recent years there has been a rapid shift to water-based paints from the perspective of environmental conservation and safety and health.
- Water-based paints include, for example, the techniques described in Patent Documents 2 to 5.
- an aqueous coating composition containing an aqueous dispersion of polymer (A) obtained by polymerization.
- the glass transition temperature is in the range of -60 to 20 ° C.
- the ethylenically unsaturated monomer is in the range of 30 to 100°C.
- Patent Document 6 The technique described in Patent Document 6 is also known as a method for producing a graft copolymer using a non-crosslinked polyorganosiloxane latex.
- the above conventional techniques are not sufficient from the viewpoint of the water repellency of the coating film, and there is room for further improvement. Moreover, it is preferable that the paint has excellent film-forming properties.
- One embodiment of the present invention has been made in view of the above problems, and the object thereof is to provide a novel water-based paint that can provide a coating film with excellent water repellency and has excellent film-forming properties. .
- the inventors of the present invention have completed the present invention as a result of intensive studies to solve the above problems.
- a water-based paint according to one embodiment of the present invention contains a graft copolymer (A) and a polymer (B), and the graft copolymer (A) is polyorganosiloxane and , and a grafted graft portion, wherein the polyorganosiloxane comprises (a) (a-1) one or more hydrolyzable silyl groups in the molecule and (a-2) one or more ethylene and (b) non-crosslinked, the polymer (B) is an aromatic vinyl monomer, The graft copolymer (A) and the polymer (B ) in the total 100% by weight, the polyorganosiloxane is 55% by weight to 90% by weight, and in the total 100% by weight of the graft copolymer (A) and the polymer (B), the polymer (B ) is at least 5.0% by weight.
- a water-based paint according to another embodiment of the present invention comprises a graft copolymer (A) and a polymer (B), wherein the graft copolymer (A) is polyorganosiloxane and the polyorganosiloxane
- the polyorganosiloxane comprises (a) (a-1) one or more hydrolyzable silyl groups in the molecule and (a-2) one or more and (b) non-crosslinked, the polymer (B) is an aromatic vinyl monomer the graft copolymer (A) and the polymer
- the polyorganosiloxane is 55% by weight to 90% by weight, and the composite of the graft copolymer (A) and the polymer (B) has a weight average molecular weight of 150, 000 or less.
- a method for producing a water-based paint according to another embodiment of the present invention includes (a) organosiloxane, (b) (b-1) one or more hydrolyzable silyl groups in the molecule, and (b-2 ) Step 1 of polymerizing a polyorganosiloxane-forming monomer mixture containing a monomer M containing one or more ethylenically unsaturated groups and/or mercapto groups to obtain a polyorganosiloxane; and a step 2 of polymerizing the graft portion-forming monomer mixture in the presence of the polyorganosiloxane obtained in 1, wherein the polyorganosiloxane-forming monomer mixture and the graft portion-forming monomer In the total 100% by weight of the body mixture, the polyorganosiloxane-forming monomer mixture is 55% to 90% by weight, and in the step 1, in 100% by weight of the polyorganosiloxane-forming monomer mixture, The total amount of the polyfunctional alkoxys
- a water-based paint that can provide a coating film with excellent water repellency and excellent film-forming properties.
- repeating unit derived from X monomer may be referred to as "X unit”.
- a repeating unit can also be called a constitutional unit.
- Patent Documents 2 to 5 As a water-based paint, the techniques described in Patent Documents 2 to 5 are known, but there is room for further improvement in the techniques described in any of the documents from the viewpoint of the water repellency required for antifouling paints. .
- the present inventor conducted extensive studies with the aim of providing a water-based coating that can provide a coating film with excellent water repellency.
- the inventors of the present invention have surprisingly found that it is possible to provide a water-based coating capable of providing a coating film with excellent water repellency by configuring the following: Containing a certain amount or more of polyorganosiloxane A water-based paint containing a graft copolymer.
- the present inventors have made further intensive studies with the aim of providing a water-based coating that can achieve both water repellency and film-forming properties, that is, a water-based coating that can provide a coating film with excellent water repellency and excellent film-forming properties. did As a result, the inventor of the present invention has surprisingly independently found that a water-based coating having excellent film-forming properties capable of providing a coating film having excellent water repellency can be provided by using the following configuration.
- the water-based paint is such that the molecular weight of the complex with the polymer (B) is a certain amount or less, or (ii) a specific amount of the polymer (B) having a specific configuration is contained.
- a water-based paint according to one embodiment of the present invention contains a graft copolymer (A) and a polymer (B), and the graft copolymer (A) is polyorganosiloxane and , and a grafted graft portion, wherein the polyorganosiloxane comprises (a) (a-1) one or more hydrolyzable silyl groups in the molecule and (a-2) one or more ethylene and (b) non-crosslinked, the polymer (B) is an aromatic vinyl monomer, The graft copolymer (A) and the polymer (B ) in the total 100% by weight, the polyorganosiloxane is 55% by weight to 90% by weight, and in the total 100% by weight of the graft copolymer (A) and the polymer (B), the polymer (B ) is at least 5.0% by weight.
- Such a water-based paint may be referred to herein as a "first water-based paint”.
- the first water-based paint has the above-described structure, it has the advantage of being able to provide a coating film with excellent film-forming properties and excellent water repellency. Moreover, since the first water-based paint has the structure described above, it has antifouling properties against aquatic organisms. Therefore, the first water-based paint can be suitably used as an antifouling paint for underwater structures.
- another embodiment of the present invention comprises a graft copolymer (A) and a polymer (B), wherein the graft copolymer (A) is polyorganosiloxane and and a grafted graft portion, wherein the polyorganosiloxane comprises (a) (a-1) one or more hydrolyzable silyl groups in the molecule and (a-2) one or more and a structural unit U derived from a monomer containing an ethylenically unsaturated group and/or a mercapto group, and (b) is non-crosslinked, and the polymer (B) is an aromatic vinyl monomer , a vinyl cyan monomer, and a (meth) acrylate monomer, the graft copolymer (A) and the polymer ( B) in a total of 100% by weight, the polyorganosiloxane is 55% to 90% by weight, and in a total of 100% by weight of the graft copolymer (A
- a water-based paint according to another embodiment of the present invention comprises a graft copolymer (A) and a polymer (B), wherein the graft copolymer (A) is polyorganosiloxane and the polyorganosiloxane
- the polyorganosiloxane comprises (a) (a-1) one or more hydrolyzable silyl groups in the molecule and (a-2) one or more and (b) non-crosslinked, the polymer (B) is an aromatic vinyl monomer the graft copolymer (A) and the polymer
- the polyorganosiloxane is 55% by weight to 90% by weight, and the composite of the graft copolymer (A) and the polymer (B) has a weight average molecular weight of 150, 000 or less.
- Such a water-based paint may be referred to herein as a "second water-based paint”.
- the second water-based paint has the above-described structure, it has the advantage of being able to provide a coating film with excellent film-forming properties and excellent water repellency. Moreover, since the second water-based paint has the structure described above, it has an antifouling property against aquatic organisms. Therefore, the second water-based paint can be suitably used as an antifouling paint for underwater structures.
- another embodiment of the present invention comprises a graft copolymer (A) and a polymer (B), wherein the graft copolymer (A) is polyorganosiloxane and and a grafted graft portion, wherein the polyorganosiloxane comprises (a) (a-1) one or more hydrolyzable silyl groups in the molecule and (a-2) one or more and a structural unit U derived from a monomer containing an ethylenically unsaturated group and/or a mercapto group, and (b) is non-crosslinked, and the polymer (B) is an aromatic vinyl monomer , a vinyl cyan monomer, and a (meth) acrylate monomer, the graft copolymer (A) and the polymer (
- the polyorganosiloxane is 55% to 90% by weight in the total 100% by weight of B), and the composite of the graft copolymer (A) and the polymer (B) has
- the first water-based paint and the second water-based paint are collectively referred to as the "water-based paint according to one embodiment of the present invention.” Or it is called “this water-based paint”.
- the present water-based paint contains a graft copolymer (A) and a polymer (B).
- the graft copolymer (A) contains polyorganosiloxane and a graft portion graft-bonded to the polyorganosiloxane.
- the polyorganosiloxane comprises (i) organosiloxane-based units, (ii) (ii-a) one or more hydrolyzable silyl groups in the molecule, and (ii-b) one or more ethylenically unsaturated groups. and/or a mercapto group, and a structural unit U derived from a monomer containing a mercapto group.
- the water-based paint can provide a coating film with excellent water repellency.
- the water repellency of the coating film can be correlated with the contact angle of the coating film. Therefore, in other words, when the graft copolymer (A) contains polyorganosiloxane, the water-based paint can provide a coating film with a large contact angle.
- the coating film provided by the water-based paint has the advantage of having sufficient heat resistance and excellent impact resistance at low temperatures.
- organosiloxane unit examples include, but are not limited to, (a) alkyl units such as dimethylsilyloxy units, diethylsilyloxy units, methylphenylsilyloxy units, diphenylsilyloxy units, and dimethylsilyloxy-diphenylsilyloxy units. Alternatively, aryl-disubstituted silyloxy units, and (b) alkyl- or aryl-monosubstituted silyloxy units such as organohydrogensilyloxy units in which some of the side chain alkyl groups are substituted with hydrogen atoms.
- the polyorganosiloxane may contain only one of the organosiloxane units described above, or may contain two or more in combination.
- the polyorganosiloxane contains 50 mol% or more of organosiloxane units in 100 mol% of the total structural units contained in the polyorganosiloxane. is preferably 60 mol% or more, more preferably 70 mol% or more, more preferably 80 mol% or more, even more preferably 90 mol% or more, containing 95 mol% or more is particularly preferred.
- the polyorganosiloxane contains dimethylsilyloxy units, methylphenylsilyloxy units and It preferably contains 50 mol% or more, more preferably 60 mol% or more, and more preferably 70 mol% or more of one or more structural units selected from the group consisting of dimethylsilyloxy-diphenylsilyloxy units. , is more preferably 80 mol % or more, even more preferably 90 mol % or more, and particularly preferably 95 mol % or more.
- Raw materials for dimethylsilyloxy units are more readily available and less expensive than other organosiloxane monomers.
- the polyorganosiloxane more preferably contains 50 mol% or more of dimethylsilyloxy units in 100 mol% of all structural units contained in the polyorganosiloxane, and 60 mol%. more preferably 70 mol% or more, more preferably 80 mol% or more, even more preferably 90 mol% or more, and particularly preferably 95 mol% or more.
- Constuent unit U When preparing the polyorganosiloxane, as raw materials, (a) one or more hydrolyzable silyl groups in the molecule and (b) one or more ethylenically unsaturated groups and / or mercapto groups.
- Polyorganosiloxane containing structural unit U can be obtained by using a monomer (monomer M described later).
- the hydrolyzable silyl group contained in the monomer M used in one embodiment of the present invention is not particularly limited.
- the hydrolyzable silyl group include a halogenosilyl group, an acyloxysilyl group, an amidosilyl group, an aminosilyl group, an alkenyloxysilyl group, an aminoxysilyl group, an oximesilyl group, an alkoxysilyl group, a thioalkoxysilyl group, and a silanol group. etc.
- An alkoxysilyl group is preferred as the hydrolyzable silyl group because of its high polymerization reactivity and ease of handling.
- the plurality of hydrolyzable silyl groups may be the same or different.
- the ethylenically unsaturated group contained in the monomer M used in one embodiment of the present invention is not particularly limited.
- the ethylenically unsaturated groups include vinyl groups, acryloyl groups and methacryloyl groups.
- the ethylenically unsaturated group is preferably one or more selected from the group consisting of acryloyl groups and methacryloyl groups.
- the monomer M contains two or more ethylenically unsaturated groups in the molecule, the multiple ethylenically unsaturated groups may be the same or different. "When forming the graft portion" can also be said to be "when the monomer mixture for forming the graft portion is polymerized".
- the monomer M include (a) vinylsilanes such as vinylmethyldimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane and tetramethyltetravinylcyclotetrasiloxane, and (b) ⁇ -methacryloyloxyethyl.
- Monomer M includes ⁇ -methacryloyloxyethyldimethoxymethylsilane, 3-(meth)acryloyloxypropyltrimethoxysilane, 3-(meth)acryloyloxypropyldimethoxymethylsilane, 3-(meth)acryloyloxypropylmethoxydimethylsilane.
- This configuration has the advantage that the graft portion-forming monomer mixture can be efficiently polymerized in the presence of the polyorganosiloxane. As a result, there is an advantage that a graft copolymer (A) having a high graft rate can be obtained.
- the polyorganosiloxane preferably contains 0.001% by weight to 10.0% by weight, more preferably 0.001% by weight to 5.0% by weight, of the structural unit U in 100% by weight of the polyorganosiloxane. , more preferably 0.01 wt% to 5.0 wt%, even more preferably 1.0 wt% to 5.0 wt%, 1.0 wt% to 3.0 wt% Especially preferred.
- This configuration has the advantage that the graft portion-forming monomer mixture can be efficiently polymerized in the presence of the polyorganosiloxane. As a result, there is an advantage that a graft copolymer (A) having a high graft ratio can be obtained.
- Crosslinked structure of polyorganosiloxane A crosslinked structure can be introduced into the polyorganosiloxane by using a polyfunctional alkoxysilane compound and/or a polyfunctional monomer during preparation of the polyorganosiloxane. Therefore, polyfunctional alkoxysilane compounds and polyfunctional monomers can also be said to be cross-linking agents in polyorganosiloxane. In one embodiment of the invention, the polyorganosiloxane is non-crosslinked.
- the polyorganosiloxane is non-crosslinked
- the total amount of the polyfunctional alkoxysilane compound and the polyfunctional monomer used in preparing the polyorganosiloxane is the polyorganosiloxane-forming monomer. 0.50% by weight or less in 100% by weight of the body mixture.
- the polyorganosiloxane is substantially non-crosslinked.
- the total amount of polyfunctional alkoxysilane compounds and polyfunctional monomers used in the preparation of polyorganosiloxane is 0.50% by weight or less in 100% by weight of the polyorganosiloxane-forming monomer mixture. is preferably 0.20% by weight or less, more preferably 0.10% by weight or less, and particularly preferably 0.01% by weight or less.
- Polyfunctional alkoxysilane compounds include tetramethoxysilane, tetraethoxysilane (TEOS), tetraisopropoxysilane, tetrabutoxysilane, tetraoctylsilane, methyltrimethoxysilane, methyltriethoxysilane, ethyltriethoxysilane, methyl Examples include triisopropoxysilane, vinyltrimethoxysilane, phenyltrimethoxysilane and dimethyldimethoxysilane.
- a polyfunctional monomer can also be said to be a monomer having two or more radically polymerizable reactive groups in the same molecule.
- the radically polymerizable reactive group is, for example, a carbon-carbon double bond.
- Examples of polyfunctional monomers include (meth)acrylates having an ethylenically unsaturated double bond, such as allylalkyl (meth)acrylates and allyloxyalkyl (meth)acrylates, butadiene is not included. be done.
- Examples of monomers having two (meth)acrylic groups include ethylene glycol di(meth)acrylate, butylene glycol di(meth)acrylate, butanediol di(meth)acrylate, hexanediol di(meth)acrylate, and cyclohexanedimethanol.
- Examples of the polyethylene glycol di(meth)acrylates include triethylene glycol di(meth)acrylate, tripropylene glycol di(meth)acrylate, tetraethylene glycol di(meth)acrylate, polyethylene glycol (600) di(meth)acrylate, and the like. are exemplified.
- alkoxylated trimethylolpropane tri(meth)acrylates include trimethylolpropane tri(meth)acrylate and trimethylolpropane triethoxy tri(meth)acrylate.
- examples of monomers having four (meth)acrylic groups include pentaerythritol tetra(meth)acrylate, ditrimethylolpropane tetra(meth)acrylate, and the like. Furthermore, dipentaerythritol penta(meth)acrylate etc. are illustrated as a monomer which has five (meth)acrylic groups. Furthermore, examples of monomers having six (meth)acrylic groups include ditrimethylolpropane hexa(meth)acrylate. Polyfunctional monomers also include diallyl phthalate, triallyl cyanurate, triallyl isocyanurate, divinylbenzene, and the like.
- the volume average particle size of the polyorganosiloxane is preferably 0.03 ⁇ m to 50.00 ⁇ m, more preferably 0.05 ⁇ m to 10.00 ⁇ m, more preferably 0.08 ⁇ m to 2.00 ⁇ m, and more preferably 0.10 ⁇ m to 1.00 ⁇ m. More preferably, 0.10 ⁇ m to 0.80 ⁇ m is even more preferable, and 0.10 ⁇ m to 0.50 ⁇ m is particularly preferable.
- volume average particle size of the polyorganosiloxane is (a) 0.03 ⁇ m or more, polyorganosiloxane having a desired volume average particle size can be stably obtained, and (b) when it is 50.00 ⁇ m or less. , has the advantage that the obtained water-based paint is excellent in film-forming properties.
- the volume-average particle size of polyorganosiloxane can be measured using a dynamic light scattering particle size distribution analyzer or the like using an aqueous latex containing polyorganosiloxane as a sample. A method for measuring the volume-average particle size of polyorganosiloxane will be described in detail in Examples below.
- the graft copolymer (A) contains polyorganosiloxane and a graft portion graft-bonded to the polyorganosiloxane.
- the graft portion can cover at least a portion of the polyorganosiloxane, or can cover the entire polyorganosiloxane. At least part of the graft portion is preferably present on the outermost side of the graft copolymer (A). Therefore, the polyorganosiloxane can be said to be the core portion of the graft copolymer (A).
- the graft copolymer (A) includes a core portion containing polyorganosiloxane and a graft portion graft-bonded to the core portion.
- the core part may be composed of only one type of polyorganosiloxane having the same structural unit composition (type and content ratio), or may be composed of two or more polyorganosiloxanes having different structural unit compositions (type and content ratio). It may be composed of an organosiloxane.
- the core may also contain one or more other rubbers in addition to one or more polyorganosiloxanes.
- Rubbers include, for example, (a) natural rubber, (b) diene rubber containing 50% by weight or more of structural units derived from a diene monomer in 100% by weight of rubber structural units, and (c) Examples thereof include (meth)acrylate rubbers containing 50% by weight or more of structural units derived from (meth)acrylate monomers in 100% by weight of rubber structural units.
- (Meth)acrylate as used herein means acrylate and/or methacrylate.
- the core preferably contains 55 to 100 parts by weight, more preferably 60 to 100 parts by weight, and 65 to 100 parts by weight of polyorganosiloxane in 100 parts by weight of the core. More preferably, 70 parts by weight to 100 parts by weight, more preferably 75 parts by weight to 100 parts by weight, more preferably 80 parts by weight to 100 parts by weight, 85 parts by weight to 100 parts by weight More preferably, it contains 90 to 100 parts by weight, and particularly preferably 95 to 100 parts by weight. According to this configuration, the water-based coating has the advantage of being able to provide a coating film with more excellent water repellency.
- the core portion may contain 100 parts by weight of polyorganosiloxane in 100 parts by weight of the core portion, that is, the core portion may be composed only of polyorganosiloxane.
- the volume average particle diameter of the core portion is preferably 0.03 ⁇ m to 50.00 ⁇ m, more preferably 0.05 ⁇ m to 10.00 ⁇ m, more preferably 0.08 ⁇ m to 2.00 ⁇ m, and further preferably 0.10 ⁇ m to 1.00 ⁇ m. It is preferably 0.10 ⁇ m to 0.80 ⁇ m, and particularly preferably 0.10 ⁇ m to 0.50 ⁇ m.
- the volume average particle diameter of the core portion is (a) 0.03 ⁇ m or more, a core portion having a desired volume average particle diameter can be stably obtained, and (b) when it is 50.00 ⁇ m or less, it is obtained. It has the advantage that the resulting water-based paint has excellent film-forming properties.
- the volume average particle size of the core portion is measured by using an aqueous latex containing the core portion as a sample and using a dynamic light scattering particle size distribution analyzer or the like in the same manner as the volume average particle size of the polyorganosiloxane. be able to.
- the graft portion is not particularly limited, but is derived from, for example, one or more monomers selected from the group consisting of aromatic vinyl monomers, vinyl cyanide monomers, and (meth)acrylate monomers. It preferably contains structural units. According to this configuration, the graft portion can have the function of solidifying the substantially non-crosslinked polyorganosiloxane. Therefore, according to this configuration, there is an advantage that the water-based paint to be obtained has excellent film-forming properties and that the strength of the coating film of the water-based paint is excellent.
- aromatic vinyl monomers include styrene, ⁇ -methylstyrene, p-methylstyrene, and divinylbenzene.
- vinyl cyan monomers include acrylonitrile and methacrylonitrile.
- (meth)acrylate monomers include (a) methyl (meth)acrylate, ethyl (meth)acrylate, butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, octyl (meth)acrylate, Alkyl (meth)acrylates such as dodecyl (meth)acrylate, stearyl (meth)acrylate and behenyl (meth)acrylate; (b) aromatic ring-containing (meth)acrylates such as phenoxyethyl (meth)acrylate and benzyl (meth)acrylate (c) hydroxyalkyl (meth)acrylates such as 2-hydroxyethyl (meth)acrylate and 4-hydroxybutyl (meth)acrylate; (d) glycidyl (meth)acrylate such as glycidyl (meth)acrylate and glycidylalkyl (meth)acrylate (meth)acrylates; (e)
- the obtained water-based paint has excellent film-forming properties.
- One or more selected from the group consisting of acrylate and butyl (meth)acrylate are preferred, one or more selected from the group consisting of methyl acrylate, butyl methacrylate and butyl acrylate are more preferred, and the group consisting of butyl methacrylate and butyl acrylate One or more selected from are more preferable, and butyl methacrylate is particularly preferable.
- Methyl methacrylate is preferable as the (meth)acrylate monomer from the viewpoint of reactivity during graft portion formation.
- methyl acrylate ethyl (meth) acrylate and butyl (meth) acrylate, in which the glass transition temperature of the homopolymer is relatively low, and the glass transition temperature of the homopolymer, which is relatively high.
- the glass transition temperature of the resulting graft portion can be adjusted to a desired temperature.
- One or more monomers selected from the group consisting of the above-mentioned aromatic vinyl monomers, vinyl cyan monomers, and (meth)acrylate monomers may be used alone, Two or more kinds may be used in combination.
- the graft portion contains structural units derived from aromatic vinyl monomers, structural units derived from vinyl cyanide monomers, and structural units derived from (meth)acrylate monomers in 100% by weight of the total structural units of the graft portion.
- the unit preferably contains 10% to 95% by weight, more preferably 30% to 92% by weight, even more preferably 50% to 90% by weight, and 60% to 87% by weight. It is particularly preferred to contain, most preferably 70% to 85% by weight.
- the graft portion contains structural units derived from methyl methacrylate and structural units derived from butyl methacrylate.
- the graft portion preferably contains 10% to 100% by weight, and preferably 30% to 100% by weight, of a structural unit derived from a (meth)acrylate monomer in 100% by weight of the total structural units of the graft portion. is more preferable, more preferably 50% to 100% by weight, even more preferably more than 50% by weight to 100% by weight or less, particularly preferably 70% to 100% by weight, and 90% to 100% by weight. % by weight is most preferred.
- the glass transition temperature of the graft portion is lower (for example, lower than 80 ° C.), so that the resulting water-based paint has the advantage of being more excellent in film formability, and / or (ii ) has the advantage of being excellent in reactivity at the time of graft portion formation.
- the graft portion may contain 100% by weight of structural units derived from a (meth)acrylate monomer in 100% by weight of the total structural units of the graft portion. It may be composed only of structural units derived from.
- the graft portion preferably further contains a structural unit derived from a reactive emulsifier.
- This configuration has the advantage of reducing or eliminating the generation of scale during the production of the water-based paint.
- scale refers to the production of water-based paint (for example, production of graft copolymer (A), or production of graft copolymer (A) and polymer (B)).
- aggregates of the graft copolymer (A) and / or the aggregates of the graft copolymer (A) and the polymer (B) aggregates of a certain size or more (for example, passing through a wire mesh of 150 mesh aggregates that cannot be formed). A method for quantifying the scale will be described in detail in later examples.
- Reactive emulsifier as used herein means an emulsifier having an ethylenically unsaturated double bond.
- the “reactivity” in the reactive emulsifier means the ability to have polymerizable radicals in the presence of a polymerization initiator or the like. Therefore, a “reactive emulsifier” can also be called a “polymerizable emulsifier”.
- a “reactive emulsifier” may also be referred to as a "reactive surfactant”.
- the type of reactive emulsifier is not particularly limited as long as it has an ethylenically unsaturated double bond.
- the reactive emulsifier may be a nonionic reactive emulsifier, an anionic reactive emulsifier, or a nonionic reactive emulsifier.
- a reactive emulsifier for example, the particle size of the graft copolymer (A) can be easily controlled to be fine (specifically, the volume average particle size of the graft copolymer (A) is 30 nm to 200 nm). Therefore, it is preferably an anionic reactive emulsifier.
- the ethylenically unsaturated double bond of the reactive emulsifier is derived from a group having an ethylenically unsaturated double bond.
- reactive emulsifiers have groups with ethylenically unsaturated double bonds.
- groups having ethylenically unsaturated double bonds include oxyalkylene groups, (meth)acryloyl groups, vinyl groups, allyl groups, isopropenyl groups, 1-propenyl groups, allyloxy groups, styryl groups, and the like. .
- the reactive emulsifier preferably has an oxyalkylene group.
- a reactive emulsifier having an oxyalkylene group is excellent in copolymerizability with a monomer.
- the oxyalkylene group include oxyalkylene groups having an alkylene group having 2 to 4 carbon atoms such as an oxyethylene group, an oxypropylene group and an oxybutylene group.
- an oxyethylene group is preferable as the oxyalkylene group.
- Oxyethylene groups are more hydrophilic than, for example, oxypropylene and oxybutylene groups.
- the graft portion of the graft copolymer (A) contains a structural unit derived from a reactive emulsifier having an oxyethylene group, a hydrated layer with high density is formed on the surface of the particles of the graft copolymer (A). As a result, the dispersibility of the particles of the graft copolymer (A) in the aqueous medium tends to increase.
- the average added mole number of oxyethylene groups in 1 mole of the reactive emulsifier is not particularly limited, but is preferably 5 to 40 moles, more preferably 10 to 30 moles, for example. According to this configuration, there is a tendency for excellent copolymerizability with the monomer. Further, when the average added mole number of oxyethylene groups is 5 mol or more, the dispersibility of the particles of the graft copolymer (A) in the aqueous medium tends to be further enhanced.
- the reactive emulsifiers described above may be used singly or in combination of two or more.
- the graft portion preferably contains 0.1% to 20.0% by weight, more preferably 0.1% to 15.0% by weight, of the structural units derived from the reactive emulsifier in 100% by weight of the total structural units of the graft portion. % by weight, more preferably 1.0% by weight to 15.0% by weight, more preferably 1.0% by weight to 10.0% by weight, more preferably 1.0% by weight to 8.0% by weight. More preferably 0% by weight, even more preferably 1.0% to 5.0% by weight, and particularly preferably 1.0% to 4.0% by weight. According to this configuration, there is an advantage that scale generation during production of the water-based paint is further reduced or eliminated.
- the graft portion is further added to the monomer M containing (a) one or more hydrolyzable silyl groups in the molecule and (b) one or more ethylenically unsaturated groups and/or mercapto groups. It preferably contains a structural unit derived from. This configuration has the advantage of reducing or eliminating the occurrence of blisters when a coating film obtained from a water-based coating is immersed in water.
- a structural unit derived from the monomer M can also be said to be a structural unit U.
- the structural unit U contained in the polyorganosiloxane and the structural unit U contained in the graft portion may be the same or different.
- the monomer M is the same as those described in the section (Structural unit U) above, so the description is incorporated and the description is omitted here. Also in the graft portion, the monomer M may be used singly or in combination of two or more.
- the hydrolyzable silyl group of the monomer M in the graft portion is also not particularly limited.
- the hydrolyzable silyl group of the monomer M in the graft portion is (a) rich in cross-linking reactivity (vinyl polymerization reactivity), (b) easy to handle, (c) inexpensive, and (d) )
- An alkoxysilyl group is particularly preferred because blistering is further reduced or eliminated when a coating film obtained from a water-based paint is immersed in water.
- the monomer M in the graft portion is also not particularly limited.
- As the monomer M in the graft portion (a) it is rich in cross-linking reactivity (vinyl polymerization reactivity), (b) it is inexpensive, and (c) it exhibits a (Meth)acryloyloxyalkylsilanes are preferred due to reduced or no blistering, ⁇ -methacryloyloxyethyldimethoxymethylsilane, 3-(meth)acryloyloxypropyltrimethoxysilane, 3-(meth) Acryloyloxypropyldimethoxymethylsilane, 3-(meth)acryloyloxypropylmethoxydimethylsilane, 3-(meth)acryloyloxypropyltriethoxysilane, 3-(meth)acryloyloxypropyldiethoxymethylsilane, 3-(meth)acryloyl Oxypropyldiethoxyethylsilane, 3-
- the graft portion preferably contains 0.1% to 20.0% by weight of structural units derived from the monomer M (structural unit U) in 100% by weight of all structural units of the graft portion. % to 15.0% by weight, more preferably 1.0% to 15.0% by weight, even more preferably 1.0% to 10.0% by weight; It is particularly preferred to contain from 0% to 8.0% by weight.
- This configuration has the advantage of reducing or eliminating blistering when a coating film obtained from a water-based coating is immersed in water.
- the graft portion may further contain a structural unit derived from a monomer having a reactive group (hereinafter also referred to as a reactive group-containing monomer).
- the reactive group-containing monomer is selected from epoxy group, oxetane group, hydroxyl group, amino group, imide group, carboxylic acid group, carboxylic anhydride group, cyclic ester, cyclic amide, benzoxazine group, and cyanate ester group. It is preferably a monomer containing one or more reactive groups selected from the group consisting of epoxy groups, hydroxyl groups, and containing one or more reactive groups selected from the group consisting of carboxylic acid groups. It is more preferable that it is a monomer that This configuration has the advantage of improving the adhesion of the coating film of the water-based paint to the substrate.
- epoxy group-containing monomers include glycidyl group-containing vinyl monomers such as glycidyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate glycidyl ether, and allyl glycidyl ether.
- monomers having a hydroxyl group include, for example, (a) 2-hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate and other hydroxy straight-chain alkyl (meth)acrylates; Acrylates (especially hydroxy linear C1-6 alkyl (meth)acrylates); (b) caprolactone-modified hydroxy (meth)acrylates; (c) methyl ⁇ -(hydroxymethyl)acrylate, ethyl ⁇ -(hydroxymethyl)acrylate hydroxy-branched alkyl (meth)acrylates such as; (d) mono(meth)acrylates of polyester diols (especially saturated polyester diols) obtained from dihydric carboxylic acids (such as phthalic acid) and dihydric alcohols (such as propylene glycol); hydroxyl group-containing (meth)acrylates, and the like.
- polyester diols especially saturated polyester diols obtained from dihydric carboxylic acids (such
- monomers having a carboxylic acid group include monocarboxylic acids such as acrylic acid, methacrylic acid and crotonic acid, and dicarboxylic acids such as maleic acid, fumaric acid and itaconic acid.
- monocarboxylic acids such as acrylic acid, methacrylic acid and crotonic acid
- dicarboxylic acids such as maleic acid, fumaric acid and itaconic acid.
- the monocarboxylic acid is preferably used as the monocarboxylic acid.
- the graft portion preferably contains 0.5% to 90% by weight, more preferably 1% to 50% by weight, of a structural unit derived from a reactive group-containing monomer in 100% by weight of the graft portion. Preferably, it contains 2% to 35% by weight, and particularly preferably 3% to 20% by weight.
- the graft portion contains (a) 0.5% by weight or more of the structural unit derived from the reactive group-containing monomer in 100% by weight of the graft portion, the obtained water-based coating has sufficient adhesion to the substrate.
- the resulting water-based coating can provide a coating film having sufficient adhesion to the substrate, and the It has the advantage of improving the storage stability of the water-based paint.
- the structural unit derived from the reactive group-containing monomer is preferably contained in the graft portion, and more preferably contained only in the graft portion.
- a crosslinked structure can be introduced into the grafted portion by using a polyfunctional monomer during the preparation of the grafted portion.
- the graft portion is preferably non-crosslinked.
- “the graft portion is non-crosslinked” means that the amount of the polyfunctional monomer used in preparing the graft portion is 0.50% by weight in 100% by weight of the monomer mixture for forming the graft portion. It is intended that: In other words, in one embodiment of the invention the graft portion is preferably substantially non-crosslinked.
- the amount of the polyfunctional monomer used in preparing the graft portion is preferably 0.50% by weight or less, and 0.20% by weight or less, based on 100% by weight of the monomer mixture for forming the graft portion. is more preferably 0.10% by weight or less, and particularly preferably 0.01% by weight or less.
- the graft portion may be composed of only one type of polymer having the same structural unit composition (type and content ratio), or two or more types of polymers having different structural unit compositions (type and content ratio). It may be composed of
- the graft portion is composed of a plurality of types of graft portions.
- the graft portion (a) may contain a composite of a plurality of polymers obtained by polymerizing them separately, and may contain one polymer (multistage polymer) obtained by polymerizing in order.
- the core portion and the graft portion containing polyorganosiloxane may have a layered structure.
- the core portion containing polyorganosiloxane is the innermost layer (also referred to as core layer), and the layer of the graft portion is present as the outermost layer (also referred to as the shell layer) outside the core portion.
- core layer also referred to as core layer
- shell layer the outermost layer outside the core portion.
- a structure in which a core portion containing polyorganosiloxane is used as a core layer and a graft portion is used as a shell layer can be called a core-shell structure.
- the graft copolymer (A) having a layered structure (core-shell structure) between the core portion containing polyorganosiloxane and the graft portion can be called a multilayer polymer or a core-shell polymer.
- the graft copolymer (A) is not limited to the above structure as long as the graft portion is graft-bonded to the polyorganosiloxane.
- At least part of the graft portion may be graft-bonded to the polyorganosiloxane, and not all of the graft portion may be graft-bonded to the polyorganosiloxane.
- the graft portion in the production of the graft copolymer (A), when a monomer mixture capable of forming the graft portion (a monomer mixture for forming the graft portion) is polymerized in the presence of polyorganosiloxane, the graft portion A polymer having the same structure as that of the polyorganosiloxane and which is not grafted to the polyorganosiloxane may be produced.
- a polymer having the same structure as the grafted portion and not graft-bonded to the polyorganosiloxane, which is generated during the preparation of the grafted portion is also referred to as a non-grafted polymer.
- the non-grafted polymer may or may not be removed from the resulting aqueous latex of graft copolymer (A).
- the water-based paint is a polymer having the same structure as the graft portion and has a polymer that is not graft-bonded to the polyorganosiloxane (non-graft polymer). You may have The non-grafted polymer contained in the water-based paint corresponds to the polymer (B) described below.
- the ratio of the polymer graft-bonded to the polyorganosiloxane that is, the proportion of the graft portion, among the polymers obtained in the preparation step of the graft portion, is referred to as the graft ratio.
- the graft ratio can also be said to be a value represented by (weight of grafted portion)/ ⁇ (weight of grafted portion)+(weight of non-grafted polymer) ⁇ 100.
- soluble matter also exists in addition to the graft portion and the non-graft polymer.
- solubles is intended unpolymerized monomers and auxiliary materials such as initiators.
- a method for determining whether it is a graft copolymer (A), a non-graft polymer, or a soluble component for example, a method of determining solubility/insolubility in a solvent can be mentioned.
- graft copolymer (A) if insoluble in MEK (ii) non-grafted polymer if soluble in MEK and insoluble in methanol, (iii) soluble in MEK , and if it is soluble in methanol, it can be determined as a soluble matter.
- the method for calculating the graft ratio is as follows. First, an aqueous latex containing the graft copolymer (A) is obtained. Then, an amount of aqueous latex corresponding to 2 g of solid content in the aqueous latex and 50 ml of methyl ethyl ketone (MEK) are mixed to prepare a MEK melt. After that, the obtained MEK lysate is separated into MEK-soluble components (MEK-soluble components) and MEK-insoluble components (MEK-insoluble components) by centrifugation or the like.
- MEK methyl ethyl ketone
- the MEK-insoluble matter is the graft copolymer (A)
- the MEK-soluble matter is the MEK-soluble matter
- the methanol-insoluble matter is the non-graft polymer.
- the graft ratio of the graft portion is preferably 85.0% or less, more preferably 80.0% or less, more preferably 75.0% or less, and 70.0% or less. is more preferably 65.0% or less, more preferably 60.0% or less, more preferably 55.0% or less, more preferably 50.0% or less It is preferably 45.0% or less, more preferably 40.0% or less, even more preferably 35.0% or less, and particularly preferably 30.0% or less.
- the graft ratio is 85.0% or less, the water-based paint has the advantage of being excellent in film formability.
- the graft ratio of the graft portion is preferably 30.0% or more, more preferably 35.0% or more, more preferably 40.0% or more, and 45.0% or more. is more preferably 50.0% or more, more preferably 55.0% or more, more preferably 60.0% or more, more preferably 65.0% or more It is preferably 70.0% or more, more preferably 75.0% or more, still more preferably 80.0% or more, and particularly preferably 85.0% or more.
- the graft ratio is 30.0% or more, there are advantages that (a) the viscosity of the water-based paint does not become too high, and (b) the generation of scale during the production of the water-based paint is reduced or eliminated. .
- the graft ratio of the graft portion can be adjusted as appropriate by changing the amount of the chain transfer agent used during the preparation of the graft portion and the amount of the monomer M used during the preparation of the polyorganosiloxane.
- the glass transition temperature of the graft portion is not particularly limited. "Glass transition temperature” may be hereinafter referred to as "Tg".
- the Tg of the graft portion is, for example, preferably 100°C or lower, preferably lower than 100°C, more preferably 90°C or lower, preferably 80°C or lower, more preferably 70°C or lower, more preferably 60°C or lower, and 50°C or lower. is more preferably 45° C. or lower, more preferably 40° C. or lower, more preferably 35° C. or lower, more preferably 30° C. or lower, more preferably 25° C. or lower, more preferably 20° C. or lower, and 15° C. or lower.
- the Tg of the graft portion is, for example, preferably ⁇ 30° C. or higher, more preferably ⁇ 25° C. or higher, more preferably ⁇ 20° C. or higher, and more preferably ⁇ 15° C. or higher. , more preferably -10 ° C. or higher, more preferably -5 ° C. or higher, more preferably 0 ° C. or higher, more preferably 5 ° C. or higher, and preferably 10 ° C. or higher. It is more preferably 15°C or higher, more preferably 20°C or higher, more preferably 25°C or higher, more preferably 30°C or higher, and preferably 35°C or higher. More preferably, it is particularly preferably 40° C. or higher.
- the present inventors have found that when the lower limit of the Tg of the graft portion is within the range described above, surprisingly, the formation of blisters when a coating film obtained from a water-based coating is immersed in water is reduced or eliminated. found independently.
- the Tg of the graft part can be determined by the composition of the constituent units contained in the graft part.
- the Tg of the obtained graft portion can be adjusted by changing the composition of the graft portion-forming monomer mixture used when preparing the graft portion.
- the glass transition temperature Tg of the graft portion is can be regarded as the Tg (° C.) of the homopolymer of
- the numerical value described in Polymer Handbook Fourth Edition edited by J. Brandup et al., Jphn Wiley & Sons, Inc.
- the graft portion is a copolymer of two or more monomers and the monomers used in the production (polymerization) of the graft portion are known (hereinafter referred to as Case A) will be described.
- the glass transition temperature Tg of the graft portion can be calculated by the following FOX formula (Formula 1).
- Tg 1 , Tg 2 , . Tg(K), w 1 , w 2 , . is the weight fraction of n.
- the glass transition of the graft portion when calculating the temperature Tg by the FOX formula (Formula 1), the reactive emulsifier and the monomer X are excluded from the monomers used in the production of the graft portion. That is, the glass transition temperature Tg of the graft portion is calculated using the FOX formula (Formula 1), assuming that a monomer other than the reactive emulsifier and the monomer X is used in the production of the graft portion.
- the Tg of the graft portion can also be obtained by performing viscoelasticity measurement using a flat plate made of the graft copolymer (A).
- Tg can be measured as follows: (1) A plane plate made of the graft copolymer (A) is subjected to a dynamic viscoelasticity measuring device (for example, DVA- 200), perform dynamic viscoelasticity measurement under tensile conditions and obtain a tan ⁇ graph; Here, in the graph of tan ⁇ , when a plurality of peaks are obtained, the highest peak temperature is taken as the glass transition temperature of the graft portion.
- a dynamic viscoelasticity measuring device for example, DVA- 200
- the volume average particle diameter (Mv) of the graft copolymer (A) is preferably from 0.05 ⁇ m to 60.00 ⁇ m, since a highly stable water-based paint having a desired viscosity can be obtained. , more preferably 0.10 ⁇ m to 20.00 ⁇ m, more preferably 0.10 ⁇ m to 8.00 ⁇ m, more preferably 0.10 ⁇ m to 6.00 ⁇ m, more preferably 0.10 ⁇ m to 4.00 ⁇ m more preferably 0.10 ⁇ m to 2.00 ⁇ m, still more preferably 0.10 ⁇ m to 1.00 ⁇ m, and particularly preferably 0.10 ⁇ m to 0.80 ⁇ m.
- the "volume average particle size (Mv) of the graft copolymer (A)” means the volume average particle size of the primary particles of the graft copolymer (A), unless otherwise specified. intended to The volume average particle size of the graft copolymer (A) is measured by using a water-based paint or an aqueous latex containing the graft copolymer (A) as a sample, using a dynamic light scattering particle size distribution analyzer or the like. be able to.
- the volume-average particle size of the graft copolymer (A) will be described in detail in Examples below.
- the number distribution of the particle size of the graft copolymer (A) in the water-based paint preferably has a half width of 0.5 to 1 time the volume average particle size. This configuration has the advantage that the water-based paint has a low viscosity and is easy to handle.
- the water-based paint contains the polymer (B).
- the polymer (B) in the water-based paint can contribute to improving the film-forming properties of the water-based paint.
- the polymer (B) can be mixed mainly in the process of producing the graft copolymer (A). Specifically, in the step of preparing the graft portion in the production of the graft copolymer (A), a polymer (non-graft polymer) that does not bond with the polyorganosiloxane is generated. By not removing the non-grafted polymer from the obtained aqueous latex of the graft copolymer (A), the non-grafted polymer can become the polymer (B) in the resulting water-based paint.
- the polymer (B) is not limited to those mixed in during the production process of the graft copolymer (A) described above, and also includes polymers added separately.
- the polymer separately added as the polymer (B) is obtained, for example, by polymerizing a monomer mixture for forming the polymer (B) separately from the production of the graft copolymer (A).
- the polymer (B) contains structural units derived from one or more monomers selected from the group consisting of aromatic vinyl monomers, vinyl cyanide monomers, and (meth)acrylate monomers. This configuration has the advantage that the obtained water-based paint has excellent film formability.
- aromatic vinyl monomer the vinyl cyanide monomer, and the (meth)acrylate monomer are the same as those described in the above section (graft portion), so the description is incorporated here. We omit the explanation here.
- the polymer (B) contains structural units derived from aromatic vinyl monomers, structural units derived from vinyl cyanide monomers and (meth)acrylate units in 100% by weight of all structural units of the polymer (B).
- the constituent units derived from the polymer preferably contain 10% to 95% by weight, more preferably 30% to 92% by weight, more preferably 50% to 90% by weight, and 60 It is particularly preferred to contain from 70% to 85% by weight, most preferably from 70% to 85% by weight. This configuration has the advantage that the obtained water-based paint has excellent film formability.
- the polymer (B) can be designed to have a low glass transition temperature (e.g., 80° C. or lower), so that the resulting water-based paint has excellent film formability. At least one selected from the group consisting of (meth)acrylate and butyl (meth)acrylate is preferred, and at least one selected from the group consisting of methyl acrylate, butyl methacrylate and butyl acrylate is more preferred, and butyl methacrylate and butyl acrylate. One or more selected from the group consisting of is more preferable, and butyl methacrylate is particularly preferable.
- a low glass transition temperature e.g. 80° C. or lower
- the (meth)acrylate monomer is preferably methyl methacrylate.
- the "reactivity upon formation (polymerization) of the polymer (B)” means “reactivity upon formation of the graft portion”.
- the polymer (B) contains a structural unit derived from methyl methacrylate and a structural unit derived from butyl methacrylate. Including units.
- the polymer (B) preferably contains 10% to 100% by weight of structural units derived from a (meth)acrylate monomer in 100% by weight of the total structural units of the polymer (B), and 30% by weight. It is more preferable to contain ⁇ 100% by weight, more preferably 50% to 100% by weight, even more preferably more than 50% by weight to 100% by weight or less, and particularly preferably 70% to 100% by weight. , 90% to 100% by weight.
- the glass transition temperature of the polymer (B) is lower (for example, lower than 80 ° C.), so that the resulting water-based paint has the advantage of further excellent film-forming properties, and / or and (ii) the advantage of excellent reactivity during the formation (polymerization) of the polymer (B).
- the polymer (B) may contain 100% by weight of structural units derived from a (meth)acrylate monomer in 100% by weight of the total structural units of the polymer (B), that is, the polymer (B ) may consist only of structural units derived from (meth)acrylate monomers.
- the glass transition temperature (Tg) of polymer (B) is not particularly limited.
- Tg of the polymer (B) is, for example, preferably 100°C or lower, preferably lower than 100°C, more preferably 90°C or lower, preferably 80°C or lower, more preferably 70°C or lower, more preferably 60°C or lower, 50° C. or less is more preferable, 45° C. or less is more preferable, 40° C. or less is more preferable, 35° C. or less is more preferable, 30° C. or less is more preferable, 25° C. or less is more preferable, 20° C. or less is more preferable, 15 ° C. or lower is more preferred, 10 ° C.
- the Tg of the polymer (B) is, for example, preferably ⁇ 30° C. or higher, more preferably ⁇ 25° C. or higher, more preferably ⁇ 20° C. or higher, and ⁇ 15° C. or higher. is more preferably ⁇ 10° C. or higher, more preferably ⁇ 5° C. or higher, more preferably 0° C. or higher, more preferably 5° C. or higher, and 10° C. or higher. more preferably 15° C. or higher, more preferably 20° C. or higher, more preferably 25° C. or higher, more preferably 30° C. or higher, and 35° C. or higher A temperature of 40° C. or higher is particularly preferable.
- the lower limit of the Tg of the polymer (B) is within the range described above, the present inventors have surprisingly found that blistering is reduced when a coating film obtained from a water-based coating is immersed in water. Or independently discovered that it disappears.
- the Tg of the polymer (B) can be determined by the composition of the constituent units contained in the polymer (B). In other words, the composition of the graft portion-forming monomer mixture used when preparing the graft portion or the polymer (B)-forming monomer mixture used when separately preparing the polymer (B) is By changing it, the Tg of the obtained polymer (B) can be adjusted.
- the glass of the polymer (B) can be regarded as Tg (°C) of a homopolymer of the above monomers.
- Tg the transition temperature of the homopolymer
- the numerical value described in Polymer Handbook Fourth Edition edited by J. Brandup et al., Jphn Wiley & Sons, Inc.
- the numerical value described in Polymer Handbook Fourth Edition edited by J. Brandup et al., Jphn Wiley & Sons, Inc.
- the glass transition temperature Tg of the polymer (B) can be calculated by the FOX formula (Formula 1) described above.
- the amount of the reactive emulsifier and the monomer X used is 20% in the total 100% by weight of the monomer mixture for forming the graft portion and the monomer mixture for forming the polymer (B). .0% by weight or less, when calculating the glass transition temperature Tg of the polymer (B) by the FOX formula (Formula 1), the reactive emulsifier and the monomer used in the production of the polymer (B) It is calculated by excluding the monomer X. That is, the glass transition temperature Tg Calculate
- the content of the polymer (B) is not particularly limited in this water-based paint.
- the polymer (B) is preferably 5.0% by weight or more, preferably 6.0% by weight or more, in the total 100% by weight of the graft copolymer (A) and the polymer (B). more preferably 7.0 wt% or more, more preferably 8.0 wt% or more, more preferably 9.0 wt% or more, 10.0 wt% It is more preferably 11.0% by weight or more, more preferably 12.0% by weight or more, more preferably 13.0% by weight or more, and 14.0% by weight or more.
- % by weight or more more preferably 15.0% by weight or more, more preferably 16.0% by weight or more, even more preferably 17.0% by weight or more, and 18 0% by weight or more is particularly preferred.
- This configuration has the advantage that the water-based paint is more excellent in film formability.
- the polymer (B) accounts for 30% of the total 100% by weight of the graft copolymer (A) and the polymer (B). % by weight or less, more preferably 28.0% by weight or less, more preferably 26.0% by weight or less, more preferably 24.0% by weight or less; It is more preferably 0% by weight or less, more preferably 20.0% by weight or less, more preferably 19.0% by weight or less, more preferably 18.0% by weight or less, It is more preferably 17.0% by weight or less, more preferably 16.0% by weight or less, more preferably 15.0% by weight or less, and more preferably 14.0% by weight or less.
- it is 13.0% by weight or less, more preferably 12.0% by weight or less, more preferably 11.0% by weight or less, and 10.0% by weight or less is more preferably 9.0% by weight or less, more preferably 8.0% by weight or less, even more preferably 7.0% by weight or less, and 6.0% by weight or less It is particularly preferred to have This configuration has the advantage of reducing or eliminating the generation of scale during the production of the water-based paint.
- case C A case where the non-grafted polymer obtained during the production of the graft copolymer (A) is not removed from the aqueous latex of the graft copolymer (A) and a separately prepared polymer is not blended (hereinafter referred to as case C) will be explained.
- polymer (B) is derived exclusively from non-grafted polymers.
- the composition (kind and content ratio) of the structural units of the graft portion and the composition of the structural units of the polymer (B) are the same. Therefore, the Tg of the graft portion and the Tg of the polymer (B) are the same value.
- the polymer (B) in the total 100% by weight of the graft portion and the polymer (B) The sum of the content (%) and graft rate is 100%.
- the content (%) of the polymer (B) in the total 100% by weight of the graft portion and the polymer (B) depends on the amount of chain transfer agent used during the preparation of the graft portion and the preparation of the polyorganosiloxane. It can be appropriately adjusted by changing the amount of the monomer M to be used.
- a polymer prepared separately from the graft copolymer (A) is added to the water-based latex or water-based paint of the graft copolymer (A) to form the polymer (B). good too.
- the non-grafted polymer obtained during the production of the graft copolymer (A) is not removed from the aqueous latex of the graft copolymer (A) and a separately prepared polymer is blended, the polymer (B) is non-grafted. Derived from polymers and separately prepared and compounded polymers.
- the polymer (B) is prepared separately. Derived from the blended polymer only.
- the polyorganosiloxane is preferably 55% to 95% by weight in the total 100% by weight of the graft copolymer (A) and the polymer (B), and 55% to 90% by weight. more preferably 60% to 90% by weight, even more preferably 65% to 85% by weight, and particularly preferably 70% to 85% by weight.
- the advantage is that the water-based paint can provide a coating film with excellent water repellency. and (b) when it is 95% by weight or less, there is an advantage that the water-based paint is more excellent in film-forming properties.
- the weight average molecular weight of the composite of the graft copolymer (A) and the polymer (B) is preferably 150,000 or less, more preferably 120,000 or less, and 100,000 or less. is more preferred, and 90,000 or less is particularly preferred.
- This configuration has the advantage that the water-based paint is more excellent in film formability.
- the weight-average molecular weight of the composite of the graft copolymer (A) and the polymer (B) is preferably 5,000 or more, more preferably 10,000 or more, and 15,000 or more. is more preferable, and 20,000 or more is particularly preferable. This configuration has the advantage that the obtained water-based paint has excellent film formability.
- weight average molecular weight of the composite of graft copolymer (A) and polymer (B) is referred to as "weight average molecular weight of the composite of graft copolymer (A) and polymer (B)": (1) graft copolymer ( Obtaining an aqueous latex containing A) and polymer (B); (2) Mixing an amount of aqueous latex corresponding to 20 mg of solid content in the aqueous latex with 10 mL of tetrahydrofuran to prepare a mixed solution; (3) (4) The filtrate obtained in (3) above is subjected to HLC-82201 (manufactured by Tosoh Corporation) to measure the weight average molecular weight.
- HLC-82201 manufactured by Tosoh Corporation
- the graft copolymer (A) and the polymer (B) are composites. can form Therefore, in the present specification, regardless of the origin of the polymer (B), the value obtained by measuring by the above method is referred to as "the weight of the composite of the graft copolymer (A) and the polymer (B). "average molecular weight”.
- aqueous latex containing the graft copolymer (A) and the polymer (B)" in the method for measuring the weight-average molecular weight is referred to as "aqueous latex of a composite of the graft copolymer (A) and the polymer (B). ” can also be said.
- the "aqueous latex containing the graft copolymer (A) and the polymer (B)” in the method for measuring the weight average molecular weight is an aqueous latex of the graft copolymer (A) or a water-based paint. is.
- the water-based paint may further contain an antifouling agent.
- This water-based paint does not contain an antifouling agent and has antifouling properties against aquatic organisms. Therefore, the present water-based paint can be suitably used as an antifouling paint for underwater structures without containing an antifouling agent. Since the water-based paint can provide a coating film with excellent antifouling properties against aquatic organisms and/or a coating film with long-lasting antifouling properties against aquatic organisms, the water-based paint further contains an antifouling agent. is preferred.
- a coating film obtained from a water-based paint containing no antifouling agent is less susceptible to damage than a coating film obtained from a water-based paint containing an antifouling agent. Therefore, a coating film obtained from a water-based paint containing no antifouling agent has the advantage of higher durability than a coating film obtained from a water-based paint containing an antifouling agent.
- the antifouling agent is not particularly limited, and known antifouling agents can be used.
- antifouling agents include inorganic compounds, metal-containing organic compounds, and metal-free organic compounds.
- antifouling agents include metal salts such as zinc oxide, cuprous oxide, 2-pyridinethiol-1-oxide zinc salt (also known as zinc pyrithione) and copper salts, pyrithione salt compounds, p-isopropylpyridinemethyldiphenylborane, Pyridine triphenylborane, tetramethylthiuram disulfide, carbamate compounds (e.g., zinc dimethyldithiocarbamate, zinc ethylenebisdithiocarbamate, 3-iodo-2-propylbutylcarbamate, bisdimethyldithiocarbamoyl zinc ethylenebisdithiocarbamate and manganese-2 ethylenebisdithiocarbamate, etc.), 2-methylthio-4-t-butylamino-6-cyclopropylamino-s-triazine, 2,4,5,6-tetrachloroisophthalonitrile, N,N- dimethyldichlorophenylure
- the water-based paint may contain an organic solvent.
- This water-based paint has the advantage of being excellent in film-forming properties without containing an organic solvent.
- the water-based paint contains an organic solvent, the water-based paint has the advantage of being more excellent in film-forming properties.
- organic solvents include hydrocarbons, halogenated hydrocarbons, ethers, esters, ketones, and alcohols.
- Hydrocarbon organic solvents include n-hexane, isohexane, n-heptane, n-octane, isooctane, n-decane, n-dodecane, cyclohexane, methylcyclohexane, cyclopentane, toluene, xylene, benzene, ethylbenzene, and decalin. , white spirit, naphtha and the like.
- Organic solvents for halogenated hydrocarbons include methylene chloride, chloroform, tetrachloroethane, trichlorethylene and the like.
- Ether organic solvents include dioxane, ethyl ether, diethyl ether, butyl diglycol, 2-butoxyethanol, tetrahydrofuran, tetrahydropyran, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol diethyl ether.
- ethylene glycol dibutyl ether diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate (also known as PMAC), propylene glycol methyl ether, dipropylene glycol methyl ether, tripropylene glycol methyl ether, propylene glycol -n-propyl ether, dipropylene glycol-n-propyl ether, propylene glycol-n-butyl ether, dipropylene glycol-n-butyl ether, tripropylene glycol-n-butyl ether, propylene glycol methyl ether acetate, dipropylene glycol methyl ether Acetate, propylene glycol diacetate, propylene glycol phenyl ether, dipropylene glycol dimethyl ether and the like.
- Organic solvents for esters include methyl acetate, ethyl acetate, propyl acetate, butyl acetate, benzyl acetate, methoxypropyl acetate, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, n-butyl acetate, and 2-ethoxyethyl acetate. etc.
- Organic solvents of ketones include acetone, methyl ethyl ketone, diethyl ketone, ethyl isobutyl ketone, methyl isobutyl ketone (also known as MIBK), methyl isoamyl ketone, diacetone alcohol and the like.
- Organic solvents of alcohols include methanol, ethanol, n-propanol, (iso)propanol, n-butanol, isobutanol, benzyl alcohol, ethylene glycol, propylene glycol and the like.
- organic solvent a mixture of the alcohol and water described above can also be used.
- Organic solvents also include dimethylformamide, dimethylsulfoxide, N-methylpyrrolidone, and the like. These organic solvents may be used individually by 1 type, and may be used in combination of 2 or more type.
- the content of organic solvents in this water-based paint is as low as possible.
- the content of the organic solvent in the water-based paint is preferably 20 parts by weight or less, more preferably 15 parts by weight or less, and even more preferably 10 parts by weight or less per 100 parts by weight of the water-based paint. 5 parts by weight or less is particularly preferred.
- the present water-based paint may contain other optional components other than the components described above, if necessary.
- Other optional components include curing agents, colorants such as pigments and dyes, extenders, pigment dispersants, ultraviolet absorbers, antioxidants, heat stabilizers (anti-gelling agents), stabilizers, plasticizers, Leveling agents, antifoaming agents, silane coupling agents, antistatic agents, flame retardants, lubricants, viscosity reducers, thickeners, viscosity modifiers, thixotropic agents, low shrinkage agents, inorganic fillers, organic fillers, Thermoplastic resins, desiccants, wetting agents, dispersants, anti-sagging agents, anti-separation agents, anti-settling agents, paint film consumption control agents, surface control agents, film-forming aids, antibacterial agents, anti-mold agents, preservatives , antifreeze agents, tackifiers, rust inhibitors, and the like.
- a method for producing a water-based paint according to one embodiment of the present invention includes (a) organosiloxane, (b) (b-1) one or more hydrolyzable silyl groups in the molecule, and (b-2) 1 Step 1 to obtain a polyorganosiloxane by polymerizing a monomer mixture for forming a polyorganosiloxane containing a monomer M containing at least one ethylenically unsaturated group and/or a mercapto group; and a step 2 of polymerizing the graft portion-forming monomer mixture in the presence of the obtained polyorganosiloxane, wherein the polyorganosiloxane-forming monomer mixture and the graft portion-forming monomer mixture In the total 100% by weight, the polyorganosiloxane-forming monomer mixture is 55% to 90% by weight, and in step 1, the polyorganosiloxane-forming monomer mixture 100% by weight, polyfunctional the total
- the method for producing a water-based paint according to one embodiment of the present invention has the above configuration, it is possible to provide a water-based paint with excellent film-forming properties that can provide a coating film with excellent water repellency.
- Step 1 is a step of preparing polyorganosiloxane.
- the organosiloxane contained in the polyorganosiloxane-forming monomer mixture is not particularly limited.
- step 1 it is preferable to use a known organosiloxane so as to obtain, for example, a polyorganosiloxane having the structural unit (organosiloxane-based unit) described in the section (organosiloxane-based unit).
- step 1 for example, (a) dimethyldialkoxysilanes such as dimethyldimethoxysilane and dimethyldiethoxysilane, (b) hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexa
- Various organosiloxane-based cyclic bodies having three or more-membered rings such as siloxane, trimethyltriphenylcyclotrisiloxane, tetradecamethylcycloheptasiloxane, dimethylcyclics (mixture of tri- to heptamer dimethylsiloxane cyclic oligomers), and (c) Dimethyldichlorosilane or the like can be used as the starting organosiloxane.
- linear or branched organosiloxanes can also be used as starting organosiloxanes.
- pre-polymerized polyorganosiloxane may be used as the organosiloxane.
- the molecular chain ends of the polyorganosiloxane may be blocked with a hydroxyl group, an alkoxy group, a trimethylsilyl group, a dimethylvinylsilyl group, a methylphenylvinylsilyl group, a methyldiphenylsilyl group, or the like.
- Hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane are used as raw material organosiloxanes in Step 1 because they are readily available and easy to prepare polyorganosiloxane. , trimethyltriphenylcyclotrisiloxane, tetradecamethylcycloheptasiloxane, and dimethylcyclics (mixture of tri- to heptamer dimethylsiloxane cyclic oligomers).
- the monomer M contained in the polyorganosiloxane-forming monomer mixture is the same as that described in the above section (Structural unit U), so the description is incorporated and the description is omitted here.
- the amount of monomer M used in step 1 correlates with the content of structural unit U in the resulting polyorganosiloxane.
- the amount of the monomer M used in step 1 is not particularly limited, but the amount used is such that the content of the structural unit U is 0.001% by weight to 10.0% by weight in 100% by weight of the polyorganosiloxane.
- the amount of the monomer M used in step 1 is, for example, 0.001% by weight to 10.0% by weight in 100% by weight of the polyorganosiloxane-forming monomer mixture, preferably 0.001% by weight. It is more preferably up to 5.0% by weight, even more preferably 0.01% to 5.0% by weight, and particularly preferably 1.0% to 5.0% by weight.
- This configuration has the advantage that (a) the graft portion-forming monomer mixture can be efficiently polymerized in the presence of the polyorganosiloxane.
- step 1 the method for polymerizing the organosiloxane and the monomer M is not particularly limited, but for example, a known emulsion polymerization method in the presence of an acidic emulsifier can be mentioned.
- the acidic emulsifier is not particularly limited, but when an organosiloxane-based cyclic body is used, an acid emulsifier capable of ring-opening the organosiloxane-based cyclic body is preferable. Suitable examples of acidic emulsifiers include dodecylbenzenesulfonic acid.
- the amount of the acidic emulsifier to be used is not particularly limited, and (a) the desired volume average particle size of the polyorganosiloxane and the graft copolymer (A), (b) the solid content (monomer mixture) concentration in the reaction solution , (c) polymerization conditions such as polymerization temperature, and (d) the presence or absence and amount of additives such as surfactants used.
- the volume average particle size of the resulting polyorganosiloxane can be controlled by (a) the degree of preliminary dispersion of the raw materials, (b) the amount of emulsifier used, (c) the polymerization temperature, and (d) the method of supplying the raw materials.
- the resulting aqueous latex is strongly acidic, so it is preferable to neutralize it after the polymerization reaction is completed.
- the basic compound used for neutralization is not particularly limited, and examples thereof include sodium hydroxide, potassium hydroxide, ammonia, triethylamine and the like.
- An aqueous latex can be neutralized by adding these basic compounds directly or in an aqueous solution to an aqueous latex containing polyorganosiloxane.
- step 1 the total amount of polyfunctional alkoxysilane compounds and polyfunctional monomers used is 0.50% by weight or less in 100% by weight of the polyorganosiloxane-forming monomer mixture. With this configuration, a non-crosslinked polyorganosiloxane is obtained.
- Step 2 is a step of preparing a graft portion graft-bonded to polyorganosiloxane.
- the graft portion can be formed by polymerizing the monomers used for forming the graft portion (monomer mixture for forming the graft portion) by known radical polymerization in the presence of the polyorganosiloxane.
- the polyorganosiloxane is obtained by emulsion polymerization in the presence of the above-mentioned acidic emulsifier (that is, when the polyorganosiloxane is obtained as an aqueous latex)
- the polymerization of the graft portion is preferably carried out by an emulsion polymerization method.
- the graft portion can be manufactured, for example, according to the method described in International Publication WO2005/028546.
- the graft portion-forming monomer mixture contains one or more monomers selected from the group consisting of aromatic vinyl monomers, vinyl cyanide monomers, and (meth)acrylate monomers. This configuration has the advantage that the obtained water-based paint has excellent film formability.
- the types and amounts of the constituent units of the obtained graft section can be determined by the types and amounts of the monomers contained in the graft-forming monomer mixture. Therefore, the types and amounts of the monomers contained in the mixture of monomers for forming the graft portion may be appropriately set so as to obtain the graft portion described in the above section (Graft Portion).
- thermal decomposition initiator When employing an emulsion polymerization method in step 2, a thermal decomposition initiator can be used as the radical polymerization initiator.
- the thermal decomposition type initiator include known initiators such as 2,2'-azobisisobutyronitrile, hydrogen peroxide, potassium persulfate, and ammonium persulfate.
- a redox initiator can also be used as the radical polymerization initiator.
- the redox type initiator comprises (a) peroxides such as organic and inorganic peroxides, (b) optionally a reducing agent such as sodium formaldehyde sulfoxylate, glucose, and optionally It is an initiator used in combination with a transition metal salt such as iron (II) sulfate, a chelating agent such as disodium ethylenediaminetetraacetate as necessary, and a phosphorus-containing compound such as sodium pyrophosphate as necessary.
- a transition metal salt such as iron (II) sulfate
- a chelating agent such as disodium ethylenediaminetetraacetate
- a phosphorus-containing compound such as sodium pyrophosphate as necessary.
- Examples of the organic peroxide include t-butyl peroxyisopropyl carbonate, paramenthane hydroperoxide, cumene hydroperoxide, dicumyl peroxide, t-butyl hydroperoxide, di-t-butyl peroxide, and t- and hexyl peroxide.
- Examples of the inorganic peroxides include hydrogen peroxide, potassium persulfate, and ammonium persulfate.
- step 2 0.01 to 5.00 parts by weight of the chain transfer agent is used with respect to 100 parts by weight of the monomer mixture for forming the graft part.
- this production method has the advantage of being able to provide a water-based paint with excellent film-forming properties.
- the chain transfer agent is not particularly limited, and known chain transfer agents such as t-dodecylmercaptan, n-dodecylmercaptan, normal octylmercaptan and 2-ethylhexyl thioglycolate can be used.
- the amount of the chain transfer agent to be used with respect to 100 parts by weight of the monomer mixture for forming the graft part is preferably 0.01 part by weight to 5.00 parts by weight, more preferably 0.01 part by weight to 3.00 parts by weight. 0.01 to 1.00 parts by weight is more preferred, and 0.10 to 1.00 parts by weight is particularly preferred.
- This configuration has the advantage of being able to provide a water-based paint that is more excellent in film formability.
- the polyorganosiloxane-forming monomer mixture is 55% to 90% by weight in a total of 100% by weight of the polyorganosiloxane-forming monomer mixture and the graft portion-forming monomer mixture. be.
- This configuration has the advantage of providing a water-based coating that can provide a coating film with excellent water repellency.
- the total amount of the polyorganosiloxane-forming monomer mixture is 55% to 95% by weight in 100% by weight of the total amount of the polyorganosiloxane-forming monomer mixture and the graft portion-forming monomer mixture. % by weight, more preferably 60% to 90% by weight, even more preferably 65% to 85% by weight, particularly preferably 70% to 85% by weight.
- This configuration has the advantage of being able to provide a water-based paint that is more excellent in film-forming properties.
- the aspect (including preferred aspects) of the graft ratio of the graft portion formed by polymerizing the monomer mixture for forming the graft portion is the same as the aspect described in the section (Graft ratio of the graft portion). The description is used, and the description is omitted here.
- the aspect (including preferred aspects) of the glass transition temperature of the graft portion obtained by polymerizing the graft portion-forming monomer mixture is the same as the aspect described in the section (Glass Transition Temperature of the Graft Portion). , the description is used, and the description is omitted here.
- a non-grafted polymer is obtained along with the grafted portion.
- an aqueous latex containing the graft copolymer (A) and the polymer (B) can be obtained.
- the ratio of the grafted part and the non-grafted polymer obtained in step 2 is determined by (a) the amount of monomer M in the polyorganosiloxane-forming monomer mixture in step 1, and (b) the chain transfer agent in step 2 can be adjusted as appropriate depending on the amount used, etc.
- the polymer (B) separately prepared may be further added to the aqueous latex of the graft copolymer (A) or the aqueous latex containing the graft copolymer (A) and the non-graft polymer.
- the graft portion-forming monomer mixture in step 2 preferably contains a reactive emulsifier.
- the reactive emulsifier is the same as described in the above section (Structural Unit Derived from Reactive Emulsifier), so the description is incorporated and the description is omitted here.
- the amount of the reactive emulsifier used in step 2 is preferably 0.1% by weight to 20.0% by weight, preferably 0.1% by weight to 15% by weight, based on 100% by weight of the monomer mixture for forming the graft portion.
- wt% 0 wt%, more preferably 1.0 wt% to 15.0 wt%, more preferably 1.0 wt% to 10.0 wt%, 1.0 wt% It is more preferably from 1.0 wt% to 8.0 wt%, even more preferably from 1.0 wt% to 5.0 wt%, particularly from 1.0 wt% to 4.0 wt%. preferable. According to this configuration, there is an advantage that scale generation during production of the water-based paint is further reduced or eliminated.
- the graft portion-forming monomer mixture in step 2 contains (a) one or more hydrolyzable silyl groups in the molecule and (b) one or more ethylenically unsaturated groups and/or mercapto groups. It is preferable to include the contained monomer M. Since the monomer M is the same as described in the above (Structural unit U) and (2-1-3. Graft portion) sections, the above descriptions are incorporated and the description is omitted here. do.
- the amount of the monomer M used in Step 2 is preferably 0.1% by weight to 20.0% by weight, and 0.1% by weight to It is more preferably 15.0% by weight, more preferably 1.0% to 15.0% by weight, even more preferably 1.0% to 10.0% by weight. 0% to 8.0% by weight is particularly preferred. This configuration has the advantage of reducing or eliminating blistering when a coating film obtained from a water-based coating is immersed in water.
- an emulsifier and a surfactant can be used for the polymerization of each monomer mixture in the production of water-based paint.
- the types and amounts of the emulsifier and surfactant are within known ranges.
- conditions such as polymerization temperature, pressure, and deoxidation in the polymerization of each monomer mixture can be applied within a known range.
- the aqueous latex containing the graft copolymer (A) and the polymer (B) obtained by the production method described above is used as a water-based paint as it is or after being diluted with water (for example, deionized water) as necessary. good too.
- An antifouling agent and/or other optional components may be further added to the water-based latex containing the graft copolymer (A) and the polymer (B) obtained by the production method described above to obtain a water-based paint. .
- the production method may further include the step of adding an antifouling agent.
- the antifouling agent and other optional components are the same as those described in (2-3. Antifouling agent) and (2-5. Other optional components), respectively. Description is omitted here.
- Method for using water-based paint (method for producing water-based coating film)]
- the method of using the water-based paint can also be said to be a method of applying a coating film (for example, an antifouling coating film) using the water-based paint.
- a method of using the present water-based paint includes applying the water-based paint to an underwater structure. Specifically, the method for using the water-based paint according to one embodiment of the present invention is described in [2. water-based paint], or the water-based paint according to one embodiment of the present invention described in the above [3. Method for producing water-based paint] above.
- the method of using the water-based paint can also be said to be a method of producing a water-based coating film.
- a water-repellent coating film can be formed on the surface or inner surface of the underwater structure.
- a coating film made of the present water-based paint has antifouling properties against aquatic organisms. Therefore, by carrying out the step of applying the water-based paint to the underwater structure, it is possible to form a coating film having antifouling properties on the surface or inner surface of the underwater structure.
- the water-based paint has excellent film-forming properties. Therefore, by applying a water-based paint to an underwater structure, a coating film having water repellency (and antifouling properties) can be easily formed on the surface or inner surface of the underwater structure.
- the method of applying the water-based paint in the application step is not particularly limited, and a known method can be used.
- coating methods that can be used include casting, dipping, spraying, brushing and brushing, rollers, dip coaters, electrostatic coating, and electrodeposition coating.
- a coating robot may be used in the coating process.
- Application robots can also be used to extrude and apply water-based paint onto underwater structures in a bead, monofilament or swirl.
- Water-based paints can also be applied onto underwater structures using jet spraying or streaming techniques.
- the water-based paint applied on the underwater structure may be dried.
- a water-repellent (and antifouling) coating can be formed on an underwater structure by applying the water-based paint onto the underwater structure and optionally drying the water-based paint.
- the method for producing a water-based coating film according to one embodiment of the present invention may have the following configuration.
- a method for producing a water-based coating comprising the step of applying a water-based coating to an underwater structure:
- the water-based coating film is including a graft copolymer (A) and a polymer (B)
- the graft copolymer (A) includes polyorganosiloxane and a graft portion graft-bonded to the polyorganosiloxane,
- the polyorganosiloxane has (a) (a-1) one or more hydrolyzable silyl groups in the molecule and (a-2) one or more ethylenically unsaturated groups and/or mercapto groups.
- the polymer (B) contains structural units derived from one or more monomers selected from the group consisting of aromatic vinyl monomers, vinyl cyanide monomers, and (meth)acrylate monomers.
- the polyorganosiloxane is 55% to 90% by weight in the total 100% by weight of the graft copolymer (A) and the polymer (B),
- the polymer (B) accounts for 5.0% by weight or more of the total 100% by weight of the graft copolymer (A) and the polymer (B).
- the method for producing a water-based coating film according to one embodiment of the present invention may have the following configuration.
- a method for producing a water-based coating comprising the step of applying a water-based coating to an underwater structure:
- the water-based coating film is including a graft copolymer (A) and a polymer (B)
- the graft copolymer (A) includes polyorganosiloxane and a graft portion graft-bonded to the polyorganosiloxane,
- the polyorganosiloxane has (a) (a-1) one or more hydrolyzable silyl groups in the molecule and (a-2) one or more ethylenically unsaturated groups and/or mercapto groups.
- the polymer (B) contains structural units derived from one or more monomers selected from the group consisting of aromatic vinyl monomers, vinyl cyanide monomers, and (meth)acrylate monomers.
- the polyorganosiloxane is 55% to 90% by weight in the total 100% by weight of the graft copolymer (A) and the polymer (B)
- the weight average molecular weight of the composite of the graft copolymer (A) and the polymer (B) is 150,000 or less.
- This coating film has the advantage of being excellent in water repellency. As a result, the present coating film also has the advantage of being excellent in antifouling properties against aquatic organisms.
- the coating film is excellent in water repellency.
- the water repellency of the present coating film (for example, a coating film having a thickness of 100 ⁇ m made of the present water-based coating material) is preferably 92 or more, more preferably 94 or more, more preferably 96 or more, and 98. It is more preferably 100 or more, and particularly preferably 100 or more. According to this configuration, the coating film has the advantage of being more excellent in antifouling properties against aquatic organisms. A method for measuring the water repellency of the coating film will be described in detail in Examples below.
- the coating film hardness of the present coating film is preferably less than 70, more preferably 60 or less, and more preferably 50 or less. , is more preferably 40 or less, more preferably 35 or less, and particularly preferably 30 or less. According to this configuration, the coating film has the advantage of being more excellent in antifouling properties against aquatic organisms. A method for measuring the coating film hardness of the coating film will be described in detail in Examples below.
- the polyorganosiloxane and the graft portion of the graft copolymer (A) contained in the water-based paint are preferably non-substantially non-crosslinked.
- the crosslink density of the graft copolymer (A) correlates with the elasticity of the graft copolymer (A), and as a result, the coating film obtained from a water-based paint (for example, a 100 ⁇ m-thick coating film made of a water-based paint) It can be correlated with dynamic storage modulus.
- the crosslink density calculated from the dynamic storage modulus of the coating film can reflect the crosslink density of the polyorganosiloxane and the graft portion of the graft copolymer (A) contained in the water-based paint.
- the crosslink density calculated from the dynamic storage elastic modulus of the present coating film is preferably 1.0 ⁇ 10 ⁇ 4 mol/cm 3 or less, It is more preferably 1.0 ⁇ 10 ⁇ 5 mol/cm 3 or less, more preferably 1.0 ⁇ 10 ⁇ 6 mol/cm 3 or less, and 1.0 ⁇ 10 ⁇ 7 mol/cm 3 or less.
- the crosslink density calculated from the dynamic storage modulus of the coating film is 1.0 ⁇ 10 ⁇ 4 mol/cm 3 or less, the polyorganosiloxane and the graft portion of the graft copolymer (A) contained in the water-based paint are It can be said that the probability of being non-crosslinked is high. Methods for measuring the storage elastic modulus and crosslink density of the coating film will be described in detail in Examples below.
- the water-based paint can be suitably used as an antifouling paint for antifouling the surfaces or inner surfaces of various underwater structures.
- Underwater structures include ships, materials for aquaculture and fishing (e.g. ropes, fishing nets, fishing gear, floats, buoys, tetrapods, etc.), oil fences, water supply outlets for thermal or nuclear power plants, and cooling water pipes. and piping for seawater utilization equipment, undersea tunnels, undersea bases, mega-floats, harbor facilities, canals, various marine engineering works such as waterways, industrial water system facilities, bridges, buoys, and the like.
- An embodiment of the present invention may have the following configuration.
- a graft copolymer (A) and a polymer (B) are included, wherein the graft copolymer (A) is a polyorganosiloxane, a graft portion graft-bonded to the polyorganosiloxane, and the polyorganosiloxane has (a) (a-1) one or more hydrolyzable silyl groups in the molecule and (a-2) one or more ethylenically unsaturated groups and/or mercapto groups and (b) is non-crosslinked, and the polymer (B) comprises an aromatic vinyl monomer, a vinyl cyanide monomer, and (meth ) contains a structural unit derived from one or more monomers selected from the group consisting of acrylate monomers, and the graft copolymer (A) and the polymer (B) total 100% by weight, Polyorganosiloxane is 55% by weight to 90% by weight, and the polymer (B) is 5.0% by weight or more in the
- a graft copolymer (A) and a polymer (B) are included, wherein the graft copolymer (A) is a polyorganosiloxane, a graft portion graft-bonded to the polyorganosiloxane, and the polyorganosiloxane has (a) (a-1) one or more hydrolyzable silyl groups in the molecule and (a-2) one or more ethylenically unsaturated groups and/or mercapto groups and (b) is non-crosslinked, and the polymer (B) comprises an aromatic vinyl monomer, a vinyl cyanide monomer, and (meth ) contains a structural unit derived from one or more monomers selected from the group consisting of acrylate monomers, and the graft copolymer (A) and the polymer (B) total 100% by weight, A water-based paint, wherein the polyorganosiloxane is 55% to 90% by weight, and the composite of the graft copoly
- the graft portion further comprises (a) one or more hydrolyzable silyl groups in the molecule and (b) one or more ethylenically unsaturated groups and/or mercapto groups.
- the water-based paint according to any one of [1] to [8], which contains a structural unit derived from the monomer M.
- a method for producing a water-based coating film comprising the step of applying the water-based coating according to any one of [1] to [14] to an underwater structure.
- step 1 of polymerizing a polyorganosiloxane-forming monomer mixture containing a monomer M containing a group to obtain a polyorganosiloxane, and grafting in the presence of the polyorganosiloxane obtained in step 1 and a step 2 of polymerizing a part-forming monomer mixture, wherein the polyorganosiloxane-forming polymer
- the monomer mixture for is 55% by weight to 90% by weight, and in step 1, in 100% by weight of the polyorganosiloxane-forming monomer mixture, a polyfunctional alkoxysilane compound and a polyfunctional monomer is 0.50% by weight or less, and in step 2, the monomer mixture for forming the graft portion comprises an aromatic vinyl monomer,
- the amount of the monomer M used in the step 1 is 0.001% by weight to 10.0% by weight in 100% by weight of the polyorganosiloxane-forming monomer mixture. Water-based paint as described.
- the amount of the reactive emulsifier used in the step 2 is 0.1% by weight to 20.0% by weight based on 100% by weight of the monomer mixture for forming the graft portion, according to [19]. water-based paint.
- the graft portion-forming monomer mixture further contains (a) one or more hydrolyzable silyl groups in the molecule and (b) one or more ethylenically unsaturated groups. and/or the water-based paint according to any one of [16] to [20], comprising a monomer M containing a mercapto group.
- the amount of the monomer M used in the step 2 is 0.1% by weight to 20.0% by weight based on 100% by weight of the monomer mixture for forming the graft portion. water-based paint.
- the volume average particle size (Mv) of the polyorganosiloxane or graft copolymer dispersed in the aqueous latex was measured using Nanotrac WaveII-EX150 (manufactured by Microtrack Bell Co., Ltd.). An aqueous latex diluted with deionized water was used as a measurement sample. For the measurement, the refractive index of water and the polyorganosiloxane or graft copolymer obtained in each production example was entered, the measurement time was 120 seconds, and the sample concentration was adjusted so that the loading index was within the range of 1 to 10. I did.
- the Tg of the graft portion was calculated according to the FOX formula (formula 1) described above using the Tg values of homopolymers of the following monomers.
- the graft ratio (%) was calculated by the following method: (1) An aqueous latex containing a graft copolymer was obtained; 50 mL of methyl ethyl ketone (MEK) was mixed to prepare a MEK lysate; separated into an insoluble component (MEK-insoluble matter).
- MEK methyl ethyl ketone
- CP60E manufactured by Hitachi Koki Co., Ltd.
- the weight of the graft copolymer (A) (MEK-insoluble
- the weight of the graft copolymer (A) and the weight of the non-grafted polymer were calculated so that the sum of the weight of the non-grafted polymer (the weight of the portion insoluble in methanol) and the weight of the non-grafted polymer (weight of the methanol-insoluble portion) was 100%. Repaired. The obtained value was used to calculate the graft ratio.
- aqueous latexes containing graft copolymers aqueous latexes (L-1) to (L-11) obtained in Production Examples 1 to 11 described later and comparative production Aqueous latexes (CL-1) to (CL-2) obtained in Examples 1 and 2 were used.
- water-based paints were obtained without removing the non-grafted polymer that may have been generated during the preparation of the graft portion from the water-based latex obtained after preparing the graft copolymer. Therefore, the weight of the non-grafted polymer, ie, the weight of the methanol-insoluble matter, becomes the weight of the polymer (B) contained in the water-based paint. Therefore, the content (%) of the polymer (B) in the total 100% by weight of the graft portion and the polymer (B) is a value obtained by subtracting the graft rate (%) from 100.
- the weight average molecular weight of the composite of the graft copolymer and polymer (B) was measured by the following method: (1) an aqueous latex containing the graft copolymer and polymer (B) was obtained; (2) An amount of aqueous latex corresponding to 20 mg of solid content in the aqueous latex was mixed with 10 mL of tetrahydrofuran to prepare a mixed solution; (3) the mixed solution was filtered through a PTFE filter (0.2 ⁇ m); The filtrate obtained in (3) was subjected to HLC-82201 (manufactured by Tosoh Corporation) to measure the weight average molecular weight.
- HLC-82201 manufactured by Tosoh Corporation
- the aqueous latexes (L-1) to (L-11) can be said to be aqueous latexes of a composite of the graft copolymer (A) and the polymer (B), and the aqueous latexes (CL-1) to (CL- 2) can be said to be an aqueous latex of a composite of the graft copolymer and polymer (B).
- the film formability of the water-based paint was evaluated by the following method: (1) each water-based paint was applied to an aluminum plate with an applicator so that the film thickness after drying was 100 ⁇ m; The plate was allowed to stand overnight at 25°C to prepare a coating film of the water-based paint; (3) The state of the coated surface of the obtained aluminum plate was visually confirmed, and the film formability was evaluated according to the following criteria. bottom. ⁇ (good): no cracks, x (defective): cracks present.
- the amount of scale generated during the production of the water-based paint was evaluated by the following method: (1) each water-based paint was filtered through a 150-mesh wire mesh; (2) the substance (scale) remaining on the wire mesh was dried, After drying, the weight of the scale was measured; (3) The weight of the scale was determined based on the solid content of the water-based latex of the composite of the graft copolymer (A) and the polymer (B) and the amount of raw materials added during the production of the water-based paint. The weight was divided by the total weight, and the obtained value was multiplied by 100 to calculate the amount of scale generated (%); (4) The amount of scale generated was evaluated according to the following criteria. ⁇ (good): the amount of scale generation is less than 0.3%, x (defective): The amount of scale generation is 0.3% or more.
- the amount of blisters generated when the coating film of the water-based paint was immersed in water was evaluated by the following method: (1) A glass plate was coated with an epoxy-based heavy anti-corrosion paint; (2) the resulting glass plate Furthermore, each water-based paint was applied with an applicator so that the film thickness after drying was 100 ⁇ m; (3) the obtained glass plate was left at 25 ° C. (4) The obtained glass plate was immersed in water and allowed to stand still for 1 week; to evaluate the amount of blisters generated. ⁇ (good): no blisters on the painted surface; ⁇ (Pass): Blisters are observed on part of the painted surface, ⁇ (bad): Blisters are observed on the entire coated surface.
- the water repellency of the coating film of the water-based paint was evaluated by the following method: (1) A glass plate was coated with an epoxy-based heavy anti-corrosion paint; (2) Each water-based paint was further applied to the obtained glass plate. (3) The resulting glass plate was allowed to stand overnight at 25°C to prepare a coating film of the epoxy-based heavy anti-corrosion paint and the water-based paint. (4) The obtained glass plate was immersed in water and allowed to stand still for 1 week; (DropMaster, manufactured by Kyowa Interface Science Co., Ltd.). In the examples, when the water repellency of the coating film obtained by measuring by the method described above is greater than 90, the coating film is judged to be excellent in water repellency.
- the coating film hardness of the water-based paint film was evaluated by the following method: (1) A glass plate was coated with an epoxy-based heavy anti-corrosion paint; (2) Each water-based paint was applied to the obtained glass plate. was applied with an applicator so that the film thickness after drying was 100 ⁇ m. (4) The obtained glass plate was immersed in water and allowed to stand for one week; (5) After standing, the coating film hardness of the coating film on the glass plate was measured using a pendulum hardness meter (manufactured by Erichsen). was measured using
- Step 1 251 parts by weight of deionized water, 0.5 parts by weight of SDS, and a monomer mixture for forming polyorganosiloxane (100 parts by weight of octamethylcyclotetrasiloxane and 2 parts by weight of ⁇ -acryloyloxypropyldimethoxymethylsilane as monomer M A mixture consisting of The resulting mixture was stirred at 10000 rpm for 5 minutes using a homomixer to prepare an emulsion. The obtained emulsion was put into a 5-necked glass container all at once.
- the glass vessel had a thermometer, stirrer, reflux condenser, nitrogen inlet, and monomer and emulsifier addition ports.
- a 10% dodecylbenzenesulfonic acid (DSA) aqueous solution was added to a glass container in an amount corresponding to 1 part by weight of the solid content in the aqueous solution, and then (ii) the glass container.
- the temperature inside was raised to 80° C. over about 40 minutes, and (iii) the mixture in the glass vessel was then reacted at 80° C. for 6 hours.
- DSA dodecylbenzenesulfonic acid
- aqueous latex (R-1) containing polyorganosiloxane was obtained by the above operation.
- the polymerization conversion rate of the monomer component was 97%.
- the volume average particle size of the polyorganosiloxane contained in the obtained aqueous latex (R-1) was 280 nm.
- Step 2 Subsequently, a glass reactor was charged with 275.5 parts by weight of aqueous polyorganosiloxane latex (R-1) (containing 70 parts by weight of polyorganosiloxane) and 121 parts by weight of deionized water.
- the glass reactor had a thermometer, a stirrer, a reflux condenser, a nitrogen inlet, and a monomer addition device.
- the charged raw materials were stirred at 60° C. while replacing the gas in the glass reactor with nitrogen.
- 0.004 parts by weight of EDTA, 0.001 parts by weight of ferrous sulfate heptahydrate, and 0.13 parts by weight of SFS were added into the glass reactor and stirred for 10 minutes.
- a mixture of a monomer mixture for forming a graft portion consisting of only 30 parts by weight of BMA, 0.24 parts by weight of t-dodecylmercaptan as a chain transfer agent, and 0.085 parts by weight of BHP was placed in a glass reactor for 120 minutes. was added continuously over a period of time. After that, 0.013 parts by weight of BHP was added into the glass reactor, and the mixture in the glass reactor was stirred for another hour to complete the polymerization.
- an aqueous latex (L-1) containing the graft copolymer (A) and the polymer (B) was obtained.
- the polymerization conversion rate of the monomer component was 97% or more.
- the volume average particle size of the graft copolymer (A) contained in the obtained aqueous latex (L-1) was 293 nm.
- Production example 2 A mixture of 29 parts by weight of BMA as a monomer mixture for forming a graft part and 1 part by weight of an ether sulfate type anionic surfactant (having an allyloxy group) (ADEKA Co., Ltd., Adekaria Soap SR1025) as a reactive emulsifier.
- An aqueous latex (L-2) containing the graft copolymer (A) and the polymer (B) was obtained in the same manner as in Production Example 1, except that the polymer (B) was used.
- the volume average particle size of the graft copolymer (A) was 294 nm.
- Comparative production example 1 A water-based latex (CL-1) containing a graft copolymer and a polymer was obtained in the same manner as in Production Example 1, except that no chain transfer agent was used in step 2. In Comparative Production Example 1, the volume average particle size of the graft copolymer was 295 nm.
- Comparative production example 2 (a) The amount of aqueous latex (R-1) used was changed to 196.8 parts by weight (including 50 parts by weight of polyorganosiloxane), and (b) the amount of BMA used in the monomer mixture for forming the graft part. was changed to 49 parts by weight, and (c) a water-based latex containing a graft copolymer and a polymer (CL-2 ). In Comparative Production Example 2, the volume average particle size of the graft copolymer was 296 nm.
- the core portion of the graft copolymer (A) was composed only of polyorganosiloxane.
- the core portion of the graft copolymer was composed only of polyorganosiloxane. That is, the volume average particle size of the polyorganosiloxane contained in the aqueous latex (R-1) can be said to be the volume average particle size of the core portion.
- Aqueous latexes (L-1) to (L-11) obtained in Production Examples 1 to 11 and aqueous latexes (CL-1) to (CL-2) obtained in Comparative Production Examples 1 to 2 were used to measure (a) the graft ratio and polymer content (%), and (b) the weight average molecular weight of the graft copolymer and polymer composite. Table 2 shows the results.
- Table 2 shows the compositions of the graft copolymers in Production Examples 1-11 and Comparative Production Examples 1-2.
- polyorganosiloxane content (%) means “polyorganosiloxane content (%)” used in step 2 with respect to a total of 100 parts by weight of the polyorganosiloxane-forming monomer mixture and the graft portion-forming monomer mixture.
- amount (%) of siloxane is intended, that is, “the content (%) of polyorganosiloxane in 100% by weight of the total of graft copolymer and polymer” is intended.
- amount of chain transfer agent means “amount of chain transfer agent used (weight parts) per 100 parts by weight in total of the polyorganosiloxane-forming monomer mixture and the graft portion-forming monomer mixture.
- “parts)”, and “the amount of reactive emulsifier (parts by weight)” is “the amount of reactive emulsifier in the total 100 parts by weight of the polyorganosiloxane-forming monomer mixture and the graft part-forming monomer mixture.
- the amount used (parts by weight)" is intended, and “monomer M (parts by weight)” is the amount of The amount (parts by weight) of the monomer M used in the preparation of the graft portion in step 2 is intended, and the “weight average molecular weight” is the “weight average molecular weight of the graft copolymer and polymer composite”.
- “amount (%) of graft copolymer” intends “amount (%) of graft copolymer in total 100% by weight of graft copolymer and polymer”
- “amount of polymer (%)” intends "the amount (%) of the polymer in 100% by weight of the total of the graft copolymer and the polymer”.
- Example 1-11 and Comparative Examples 1-2 Using water-based latexes (L-1) to (L-11), respectively, water-based paints of Examples 1 to 11 were prepared according to Formulation Example 1 and Formulation Example 2 shown in Table 1. Using water-based latexes (CL-1) to (CL-2), respectively, water-based paints of Comparative Examples 1 and 2 were prepared according to Formulation Example 1 and Formulation Example 2 shown in Table 1.
- the water-based paint according to one embodiment of the present invention it is possible to provide a water-based paint excellent in film-forming properties that can provide a coating film excellent in water repellency. Moreover, the water-based paint according to one embodiment of the present invention can provide a coating film having excellent antifouling properties against aquatic organisms.
- the water-based paint according to one embodiment of the present invention can be used for ships, materials for aquaculture and fishing, oil fences, water supply and drain ports of thermal or nuclear power plants, cooling water conduits and It is suitable for underwater structures such as piping for seawater utilization equipment, undersea tunnels, undersea bases, mega-floats, harbor facilities, canals, various marine civil engineering works such as waterways, industrial water system facilities, bridges, buoys, and the like.
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Abstract
Description
上述したように、水中構造物に防汚塗料を塗布することが一般的である。塗料としては、溶剤系塗料および水系塗料が知られており、環境保全および安全衛生の観点から、水系塗料への移行が急速に進んでいる。しかしながら、防汚塗料に限って言えば溶剤系塗料のみが知られており(例えば特許文献1)、水系の防汚塗料の開発が求められている。
本発明の一実施形態に係る水系塗料は、グラフト共重合体(A)および重合体(B)を含み、前記グラフト共重合体(A)は、ポリオルガノシロキサンと、当該ポリオルガノシロキサンに対して、グラフト結合されたグラフト部と、を含み、前記ポリオルガノシロキサンは、(a)(a-1)分子内に1個以上の加水分解性シリル基と、(a-2)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体に由来する構成単位Uを含み、かつ(b)非架橋であり、前記重合体(B)は、芳香族ビニル単量体、ビニルシアン単量体、および(メタ)アクリレート単量体からなる群より選択される1種以上の単量体に由来する構成単位を含み、前記グラフト共重合体(A)および前記重合体(B)の合計100重量%中、前記ポリオルガノシロキサンは55重量%~90重量%であり、前記グラフト共重合体(A)および前記重合体(B)の合計100重量%中、前記重合体(B)は5.0重量%以上である。かかる水系塗料を、本明細書において、「第1の水系塗料」と称する場合もある。
本水系塗料は、グラフト共重合体(A)および重合体(B)を含む。グラフト共重合体(A)は、ポリオルガノシロキサンと、当該ポリオルガノシロキサンに対して、グラフト結合されたグラフト部と、を含む。
ポリオルガノシロキサンは、(i)オルガノシロキサン系単位と、(ii)(ii-a)分子内に1個以上の加水分解性シリル基と、(ii-b)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体に由来する構成単位Uと、を含む。
オルガノシロキサン系単位としては、特に限定されないが、例えば、(a)ジメチルシリルオキシ単位、ジエチルシリルオキシ単位、メチルフェニルシリルオキシ単位、ジフェニルシリルオキシ単位、ジメチルシリルオキシ-ジフェニルシリルオキシ単位などの、アルキルもしくはアリール2置換シリルオキシ単位、並びに(b)側鎖のアルキルの一部が水素原子に置換されたオルガノハイドロジェンシリルオキシ単位などの、アルキルもしくはアリール1置換シリルオキシ単位、などが挙げられる。ポリオルガノシロキサンは、上述したオルガノシロキサン系単位のうち、1種類のみを含んでいてもよく、2種以上を組み合わせて含んでいてもよい。
ポリオルガノシロキサンの調製時に、原料として、(a)分子内に1個以上の加水分解性シリル基と、(b)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体(後述する単量体Mである。)を用いることにより、構成単位Uを含むポリオルガノシロキサンを得ることができる。
ポリオルガノシロキサンの調製時に多官能性のアルコキシシラン化合物および/または多官能性単量体を使用することにより、ポリオルガノシロキサンに架橋構造を導入することができる。それ故、多官能性のアルコキシシラン化合物および多官能性単量体は、ポリオルガノシロキサンにおける架橋剤ともいえる。本発明の一実施形態において、ポリオルガノシロキサンは非架橋である。ここで、「ポリオルガノシロキサンは非架橋である」とは、ポリオルガノシロキサンの調製時に使用する多官能性のアルコキシシラン化合物および多官能性単量体の合計量が、ポリオルガノシロキサン形成用単量体混合物100重量%中、0.50重量%以下であることを意図する。換言すれば、本発明の一実施形態において、ポリオルガノシロキサンは実質的に非架橋である。ポリオルガノシロキサンの調製時に使用する多官能性のアルコキシシラン化合物および多官能性単量体の合計量は、ポリオルガノシロキサン形成用単量体混合物100重量%中、0.50重量%以下であることが好ましく、0.20重量%以下であることがより好ましく、0.10重量%以下であることがさらに好ましく、0.01重量%以下であることが特に好ましい。
ポリオルガノシロキサンの体積平均粒子径は、0.03μm~50.00μmが好ましく、0.05μm~10.00μmがより好ましく、0.08μm~2.00μmがより好ましく、0.10μm~1.00μmがさらに好ましく、0.10μm~0.80μmがよりさらに好ましく、0.10μm~0.50μmが特に好ましい。ポリオルガノシロキサンの体積平均粒子径が(a)0.03μm以上である場合、所望の体積平均粒子径を有するポリオルガノシロキサンを安定的に得ることができ、(b)50.00μm以下である場合、得られる水系塗料が製膜性に優れるという利点を有する。ポリオルガノシロキサンの体積平均粒子径は、ポリオルガノシロキサンを含む水性ラテックスを試料として、動的光散乱式粒子径分布測定装置などを用いて、測定することができる。ポリオルガノシロキサンの体積平均粒子径の測定方法については、下記実施例にて詳述する。
グラフト共重合体(A)は、ポリオルガノシロキサンと、当該ポリオルガノシロキサンに対してグラフト結合されたグラフト部と、を含む。グラフト共重合体(A)において、グラフト部はポリオルガノシロキサンの少なくとも一部を被覆し得るか、またはポリオルガノシロキサンの全体を被覆し得る。グラフト部の少なくとも一部分は、グラフト共重合体(A)の最も外側に存在することが好ましい。それ故、ポリオルガノシロキサンは、グラフト共重合体(A)のコア部ともいえる。換言すれば、グラフト共重合体(A)は、ポリオルガノシロキサンを含むコア部と、当該コア部に対してグラフト結合されたグラフト部と、を含む。
コア部の体積平均粒子径は、0.03μm~50.00μmが好ましく、0.05μm~10.00μmがより好ましく、0.08μm~2.00μmがより好ましく、0.10μm~1.00μmがさらに好ましく、0.10μm~0.80μmがよりさらに好ましく、0.10μm~0.50μmが特に好ましい。コア部の体積平均粒子径が(a)0.03μm以上である場合、所望の体積平均粒子径を有するコア部を安定的に得ることができ、(b)50.00μm以下である場合、得られる水系塗料が製膜性に優れるという利点を有する。コア部の体積平均粒子径は、コア部を含む水性ラテックスを試料として、動的光散乱式粒子径分布測定装置などを用いて、ポリオルガノシロキサンの体積平均粒子径と同様の方法にて測定することができる。
グラフト部としては、特に限定されないが、例えば、芳香族ビニル単量体、ビニルシアン単量体、および(メタ)アクリレート単量体からなる群より選択される1種以上の単量体に由来する構成単位を含むことが好ましい。当該構成によると、グラフト部は、実質的に非架橋であるポリオルガノシロキサンを固体化する機能を担い得る。それ故、当該構成によると、得られる水系塗料が製膜性に優れ、かつ当該水系塗料の塗膜が強度に優れるという利点を有する。
グラフト部は、さらに、反応性乳化剤に由来する構成単位を含むことが好ましい。当該構成によると、水系塗料の製造時のスケールの発生が低減されるかまたは無くなるという利点を有する。本明細書において「スケール」とは、水系塗料の製造時(例えば、グラフト共重合体(A)の製造時、またはグラフト共重合体(A)および重合体(B)の製造時)に発生する、グラフト共重合体(A)の凝集体および/またはグラフト共重合体(A)と重合体(B)との凝集体のうち、一定の大きさ以上の凝集体(例えば150メッシュの金網を通過し得ない凝集体)を意図する。スケールの定量方法については、後の実施例にて詳説する。
グラフト部は、さらに、(a)分子内に1個以上の加水分解性シリル基と、(b)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体Mに由来する構成単位を含むことが好ましい。当該構成によると、水系塗料から得られる塗膜を水に浸漬した際のブリスター発生が低減されるかまたは無くなるという利点を有する。
グラフト部の調製時に多官能性単量体を使用することにより、グラフト部に架橋構造を導入することができる。本発明の一実施形態において、グラフト部は非架橋であることが好ましい。ここで、「グラフト部は非架橋である」とは、グラフト部の調製時に使用する多官能性単量体の量が、グラフト部形成用単量体混合物100重量%中、0.50重量%以下であることを意図する。換言すれば、本発明の一実施形態において、グラフト部は実質的に非架橋であることが好ましい。グラフト部の調製時に使用する多官能性単量体の量は、グラフト部形成用単量体混合物100重量%中、0.50重量%以下であることが好ましく、0.20重量%以下であることがより好ましく、0.10重量%以下であることがさらに好ましく、0.01重量%以下であることが特に好ましい。
グラフト部の少なくとも一部がポリオルガノシロキサンに対してグラフト結合されていればよく、グラフト部の全てがポリオルガノシロキサンに対してグラフト結合されていなくてもよい。グラフト共重合体(A)の製造におけるグラフト部の調製において、グラフト部を構成し得る単量体混合物(グラフト部形成用単量体混合物)をポリオルガノシロキサンの存在下で重合するとき、グラフト部と同じ構成を有する重合体であり、かつポリオルガノシロキサンに対してグラフト結合されていない重合体が生じる場合がある。本明細書において、グラフト部の調製時に発生する、グラフト部と同じ構成を有する重合体であり、かつポリオルガノシロキサンに対してグラフト結合されていない重合体を、非グラフト重合体とも称する。当該非グラフト重合体は、得られたグラフト共重合体(A)の水性ラテックスから、取り除かれてもよく、取り除かれなくてもよい。換言すれば、本発明の一実施形態において、水系塗料は、グラフト部と同じ構成を有する重合体であり、かつポリオルガノシロキサンに対してグラフト結合されていない重合体(非グラフト重合体)を有していてもよい。水系塗料に含まれる非グラフト重合体は、後述する重合体(B)に相当する。
グラフト率(%)=100-[(メタノール不溶分の重量)/{(メタノール不溶分の重量)+(MEK不溶分の重量)}]/(グラフト部の調製に使用したグラフト部形成用単量体混合物の全量)×10000。
グラフト部のガラス転移温度は、特に限定されない。「ガラス転移温度」を、以下「Tg」と称する場合もある。グラフト部のTgは、例えば、100℃以下が好ましく、100℃未満が好ましく、90℃以下がより好ましく、80℃以下が好ましく、70℃以下がより好ましく、60℃以下がより好ましく、50℃以下がより好ましく、45℃以下がより好ましく、40℃以下がより好ましく、35℃以下がより好ましく、30℃以下がより好ましく、25℃以下がより好ましく、20℃以下がより好ましく、15℃以下がより好ましく、10℃以下がより好ましく、5℃以下がより好ましく、0℃以下がより好ましく、-5℃以下がより好ましく、-10℃以下がより好ましく、-15℃以下がさらに好ましく、-20℃以下が特に好ましい。当該構成によると、水系塗料が製膜性に優れるという利点を有する。また、本発明者は、グラフト部のTgの上限値が100℃未満である場合、驚くべきことに、水系塗料の製造時のスケールの発生が低減されるかまたは無くなることを独自に見出した。
ここで、Tg1、Tg2、・・・、Tgnは、それぞれ、グラフト部を構成する成分(すなわちグラフト部の製造で使用した単量体)1、2、・・・、nの単独重合体のTg(K)、w1、w2、・・・、wnは、それぞれ、グラフト部を構成する成分(すなわちグラフト部の製造で使用した単量体)1、2、・・・、nの重量分率である。
以下、グラフト共重合体(A)の物性について説明する。
グラフト共重合体(A)の体積平均粒子径(Mv)は、所望の粘度を有し、かつ高度に安定した水系塗料を得ることができることから、0.05μm~60.00μmであることが好ましく、0.10μm~20.00μmであることがより好ましく、0.10μm~8.00μmであることがより好ましく、0.10μm~6.00μmであることがより好ましく、0.10μm~4.00μmであることがより好ましく、0.10μm~2.00μmであることがより好ましく、0.10μm~1.00μmであることがさらに好ましく、0.10μm~0.80μmであることが特に好ましい。当該構成によると、グラフト共重合体(A)の重合安定性に優れ、かつ水系塗料が貯蔵安定性に優れるという利点を有する。なお、本明細書において、「グラフト共重合体(A)の体積平均粒子径(Mv)」とは、特に言及する場合を除き、グラフト共重合体(A)の1次粒子の体積平均粒子径を意図する。グラフト共重合体(A)の体積平均粒子径は、水系塗料、またはグラフト共重合体(A)を含む水性ラテックスを試料として、動的光散乱式粒子径分布測定装置などを用いて、測定することができる。グラフト共重合体(A)の体積平均粒子径については、下記実施例にて詳述する。
本水系塗料は、重合体(B)を含む。水系塗料における重合体(B)は、水系塗料の製膜性の向上に寄与し得る。重合体(B)は、主として、グラフト共重合体(A)を製造する過程において混入し得る。具体的には、グラフト共重合体(A)の製造におけるグラフト部の調製工程において、ポリオルガノシロキサンと結合しない重合体(非グラフト重合体)が発生する。得られたグラフト共重合体(A)の水性ラテックスから、前記非グラフト重合体を除去しないことにより、得られる水系塗料において、当該非グラフト重合体が重合体(B)になり得る。なお、重合体(B)としては、上述したグラフト共重合体(A)の製造過程において混入するものに限定されず、別途追加される重合体も含まれる。重合体(B)として別途追加される重合体は、例えばグラフト共重合体(A)の製造とは別に、重合体(B)形成用単量体混合物を重合して得られる。
重合体(B)のガラス転移温度(Tg)は、特に限定されない。重合体(B)のTgは、例えば、100℃以下が好ましく、100℃未満が好ましく、90℃以下がより好ましく、80℃以下が好ましく、70℃以下がより好ましく、60℃以下がより好ましく、50℃以下がより好ましく、45℃以下がより好ましく、40℃以下がより好ましく、35℃以下がより好ましく、30℃以下がより好ましく、25℃以下がより好ましく、20℃以下がより好ましく、15℃以下がより好ましく、10℃以下がより好ましく、5℃以下がより好ましく、0℃以下がより好ましく、-5℃以下がより好ましく、-10℃以下がより好ましく、-15℃以下がさらに好ましく、-20℃以下が特に好ましい。当該構成によると、水系塗料が製膜性に優れるという利点を有する。また、本発明者は、重合体(B)のTgの上限値が100℃未満である場合、驚くべきことに、水系塗料の製造時のスケールの発生が低減されるかまたは無くなることを独自に見出した。
本水系塗料は、さらに防汚剤を含んでいてもよい。本水系塗料は、防汚剤を含むことなく、水中生物に対する防汚性を有する。それ故、本水系塗料は、防汚剤を含むことなく、水中構造物用防汚塗料として好適に利用できる。水系塗料が、水中生物に対する防汚性により優れる塗膜、および/または、水中生物に対する防汚性がより長期間持続する塗膜を提供できることから、本水系塗料は、さらに防汚剤を含むことが好ましい。一方、防汚剤を含まない水系塗料から得られる塗膜は、防汚剤を含む水系塗料から得られる塗膜と比較して、ダメージをより受け難い。そのため、防汚剤を含まない水系塗料から得られる塗膜は、防汚剤を含む水系塗料から得られる塗膜と比較して、耐久性がより高いという利点を有する。
本水系塗料は、有機溶剤を含んでいてもよい。本水系塗料は、有機溶剤を含むことなく、製膜性に優れるという利点を有する。水系塗料が有機溶剤を含む場合、当該水系塗料はより製膜性に優れるという利点を有する。有機溶剤としては、例えば、炭化水素類、ハロゲン化炭化水素類、エーテル類、エステル類、ケトン類、アルコール類等を挙げることができる。炭化水素類の有機溶剤としては、n-ヘキサン、イソヘキサン、n-ヘプタン、n-オクタン、イソオクタン、n-デカン、n-ドデカン、シクロヘキサン、メチルシクロヘキサン、シクロペンタン、トルエン、キシレン、ベンゼン、エチルベンゼン、デカリン、ホワイトスピリット、ナフサ等が挙げられる。ハロゲン化炭化水素類の有機溶剤としては、塩化メチレン、クロロホルム、テトラクロロエタン、トリクロロエチレン等が挙げられる。エーテル類の有機溶剤としては、ジオキサン、エチルエーテル、ジエチルエーテル、ブチルジグリコール、2-ブトキシエタノール、テトラヒドロフラン、テトラヒドロピラン、エチレングリコールモノメチルエーテル、エチレングリコールモノエチルエーテル、エチレングリコールモノブチルエーテル、エチレングリコールジエチルエーテル、エチレングリコールジブチルエーテル、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、プロピレングリコールモノメチルエーテル、プロピレングリコールモノメチルエーテルアセテート(別名;PMAC)、プロピレングリコールメチルエーテル、ジプロピレングリコールメチルエーテル、トリプロピレングリコールメチルエーテル、プロピレングリコール-n-プロピルエーテル、ジプロピレンングリコール-n-プロピルエーテル、プロピレングリコール-n-ブチルエーテル、ジプロピレングリコール-n-ブチルエーテル、トリプロピレングリコール-n-ブチルエーテル、プロピレングリコールメチルエーテルアセテート、ジプロピレングリコールメチルエーテルアセテート、プロピレングリコールジアセテート、プロピレングリコールフェニルエーテル、ジプロピレングリコールジメチルエーテル等が挙げられる。エステル類の有機溶剤としては、酢酸メチル、酢酸エチル、酢酸プロピル、酢酸ブチル、酢酸ベンジル、メトキシプロピルアセテート、エチレングリコールモノメチルエーテルアセテート、エチレングリコールモノエチルエーテルアセテート、n-ブチルアセテート、2-エトキシエチルアセテート等が挙げられる。ケトン類の有機溶剤としては、アセトン、メチルエチルケトン、ジエチルケトン、エチルイソブチルケトン、メチルイソブチルケトン(別名;MIBK)、メチルイソアミルケトン、ダイアセトンアルコール等が挙げられる。アルコール類の有機溶剤としては、メタノール、エタノール、n-プロパノール、(イソ)プロパノール、n-ブタノール、イソブタノール、ベンジルアルコール、エチレングリコール、プロピレングリコール等が挙げられる。有機溶剤としては、上述したアルコールと水との混合物を用いることもできる。有機溶剤としては、ジメチルホルムアミド、ジメチルスルホキシドおよびN-メチルピロリドン等も挙げられる。これらの有機溶剤は、1種を単独で用いてもよく、2種以上を組み合わせて使用してもよい。
本水系塗料は、必要に応じて、前述した成分以外の、その他の任意成分を含有してもよい。その他の任意成分としては、硬化剤、顔料および染料などの着色剤、体質顔料、顔料分散剤、紫外線吸収剤、酸化防止剤、熱安定化剤(ゲル化防止剤)、安定剤、可塑剤、レベリング剤、消泡剤、シランカップリング剤、帯電防止剤、難燃剤、滑剤、減粘剤、増粘剤、粘度調整剤、チクソトロピー性付与剤、低収縮剤、無機質充填剤、有機質充填剤、熱可塑性樹脂、乾燥剤、湿潤剤、分散剤、タレ止め剤、色別れ防止剤、沈降防止剤、塗膜消耗調整剤、表面調整剤、製膜助剤、抗菌剤、防カビ剤、防腐剤、凍結防止剤、粘着付与剤、防さび剤などが挙げられる。
本発明の一実施形態に係る水系塗料の製造方法は、(a)オルガノシロキサン、および(b)(b-1)分子内に1個以上の加水分解性シリル基と、(b-2)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体M、を含むポリオルガノシロキサン形成用単量体混合物を重合してポリオルガノシロキサンを得る工程1と、工程1で得られた前記ポリオルガノシロキサンの存在下でグラフト部形成用単量体混合物を重合する工程2と、を有し、前記ポリオルガノシロキサン形成用単量体混合物および前記グラフト部形成用単量体混合物の合計100重量%中、前記ポリオルガノシロキサン形成用単量体混合物は55重量%~90重量%であり、前記工程1では、前記ポリオルガノシロキサン形成用単量体混合物100重量%中、多官能性のアルコキシシラン化合物および多官能性単量体の合計使用量が0.50重量%以下であり、前記工程2では、前記グラフト部形成用単量体混合物は、芳香族ビニル単量体、ビニルシアン単量体、および(メタ)アクリレート単量体からなる群より選択される1種以上の単量体を含み、前記工程2では、前記グラフト部形成用単量体混合物100重量部に対して、連鎖移動剤0.01重量部~5.00重量部を使用する。
工程1は、ポリオルガノシロキサンを調製する工程である。
工程2は、ポリオルガノシロキサンに対してグラフト結合したグラフト部を調製する工程である。
本水系塗料の使用方法は、水系塗料を使用した塗膜(例えば防汚塗膜)の施工方法ともいえる。本水系塗料の使用方法は、水系塗料を水中構造物に塗布する工程を有する。具体的に、本発明の一実施形態に係る水系塗料の使用方法は、前記〔2.水系塗料〕の項に記載の本発明の一実施形態に係る水系塗料、または前記〔3.水系塗料の製造方法〕の項に記載の本発明の一実施形態に係る水系塗料の製造方法によって得られた水系塗料、を水中構造物に塗布する工程を含む。水系塗料の使用方法は、水系塗膜の製造方法ともいえる。具体的に、具体的に、本発明の一実施形態に係る水系塗膜の製造方法は、前記〔2.水系塗料〕の項に記載の本発明の一実施形態に係る水系塗料、または前記〔3.水系塗料の製造方法〕の項に記載の本発明の一実施形態に係る水系塗料の製造方法によって得られた水系塗料、を水中構造物に塗布する工程を含む。当該構成によると、水中構造物の表面または内表面に撥水性を有する塗膜を形成することができる。本水系塗料からなる塗膜は、水中生物に対する防汚性を有する。それ故、水系塗料を水中構造物に塗布する工程を実施することにより、水中構造物の表面または内表面に防汚性を有する塗膜を形成することができる。また、本水系塗料は製膜性に優れる。それ故、水系塗料を水中構造物に塗布することで、水中構造物の表面または内表面に撥水性(および防汚性)を有する塗膜を容易に形成することができる。
ここで、前記水系塗膜は、
グラフト共重合体(A)および重合体(B)を含み、
前記グラフト共重合体(A)は、ポリオルガノシロキサンと、当該ポリオルガノシロキサンに対して、グラフト結合されたグラフト部と、を含み、
前記ポリオルガノシロキサンは、(a)(a-1)分子内に1個以上の加水分解性シリル基と、(a-2)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体に由来する構成単位Uを含み、かつ(b)非架橋であり、
前記重合体(B)は、芳香族ビニル単量体、ビニルシアン単量体、および(メタ)アクリレート単量体からなる群より選択される1種以上の単量体に由来する構成単位を含み、
前記グラフト共重合体(A)および前記重合体(B)の合計100重量%中、前記ポリオルガノシロキサンは55重量%~90重量%であり、
前記グラフト共重合体(A)および前記重合体(B)の合計100重量%中、前記重合体(B)は5.0重量%以上である。
ここで、前記水系塗膜は、
グラフト共重合体(A)および重合体(B)を含み、
前記グラフト共重合体(A)は、ポリオルガノシロキサンと、当該ポリオルガノシロキサンに対して、グラフト結合されたグラフト部と、を含み、
前記ポリオルガノシロキサンは、(a)(a-1)分子内に1個以上の加水分解性シリル基と、(a-2)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体に由来する構成単位Uを含み、かつ(b)非架橋であり、
前記重合体(B)は、芳香族ビニル単量体、ビニルシアン単量体、および(メタ)アクリレート単量体からなる群より選択される1種以上の単量体に由来する構成単位を含み、
前記グラフト共重合体(A)および前記重合体(B)の合計100重量%中、前記ポリオルガノシロキサンは55重量%~90重量%であり、
前記グラフト共重合体(A)および前記重合体(B)の複合体の重量平均分子量は150,000以下である。
前記〔4.水系塗料の使用方法(水系塗膜の製造方法)〕の項に記載した方法により、形成された塗膜も、本発明の一実施形態である。すなわち、(a)前記〔2.水系塗料〕の項に記載の本水系塗料からなる塗膜、または(b)前記〔3.水系塗料の製造方法〕の項に記載の本製造方法により製造された水系塗料からなる塗膜、もまた、本発明の一実施形態である。以下、「本発明の一実施形態に係る塗膜」を、「本塗膜」と称する場合がある。
本水系塗料は、様々な水中構造物の表面または内表面を防汚するための防汚塗料として好適に用いることができる。水中構造物としては、船舶、養殖および漁のための資材(例えば、ロープ、漁網、漁具、浮き子、ブイ、テトラポットなど)、オイルフェンス、火力または原子力発電所の給排水口、冷却用導水管および海水利用機器などの配管、海底トンネル、海底基地、メガフロート、港湾設備、運河および水路等の各種海洋土木工事、工業用水系施設、橋梁、浮標、などが挙げられる。
先ず、実施例および比較例によって製造したグラフト共重合体、重合体(B)および水系塗料の評価方法について、以下に説明する。
水性ラテックス中に分散しているポリオルガノシロキサンまたはグラフト共重合体の体積平均粒子径(Mv)は、Nanotrac WaveII-EX150(マイクロトラックベル株式会社製)を用いて測定した。脱イオン水で水性ラテックスを希釈したものを測定試料として用いた。測定は、水、および、各製造例で得られたポリオルガノシロキサンまたはグラフト共重合体の屈折率を入力し、計測時間120秒、ローディングインデックス1~10の範囲内になるように試料濃度を調整して行った。
グラフト部のTgは、以下の単量体の単独重合体のTg値を用い、上述のFOX式(数式1)に従い算出した。
ブチルメタクリレート(BMA) 20℃
n-ブチルアクリレート(BA) -54℃。
以下の方法により、グラフト率(%)を算出した:(1)グラフト共重合体を含有する水性ラテックスを得た;(2)次いで、水性ラテックス中の固形分2gに相当する量の水性ラテックスとメチルエチルケトン(MEK)50mLとを混合し、MEK溶解物を調製した;(3)その後、得られたMEK溶解物を、遠心分離等によって、MEKに可溶な成分(MEK可溶分)とMEKに不溶な成分(MEK不溶分)とに分離した。ここで、遠心分離機としては、CP60E(日立工機(株)社製)を用い、遠心条件は、回転数30000rpmおよび1時間とした;(4)得られたMEK可溶分にMEKを添加し、得られた混合物を、再度同じ条件で遠心分に供し、MEK可溶分とMEK不溶分とに分離した。同じ操作をさらに1回行った;(5)次に、得られたMEK可溶分20mlをメタノール200mlと混合し、当該混合物に塩化カルシウム0.01gを水に溶かした塩化カルシウム水溶液を添加し1時間攪拌した;(6)その後、得られた混合物をメタノール可溶分とメタノール不溶分に分離した;(7)次いで、MEK不溶分の重量およびメタノール不溶分の重量を測定した;(8)下記式より、グラフト率を算出した;
グラフト率(%)=100-[(メタノール不溶分の重量)/{(メタノール不溶分の重量)+(MEK不溶分の重量)}]/(グラフト部の調製に使用したグラフト部形成用単量体混合物の全量)×10000。
グラフト共重合体および重合体(B)の複合体の重量平均分子量は、以下の方法で測定した:(1)グラフト共重合体および重合体(B)を含む水性ラテックスを得た;(2)水性ラテックス中の固形分20mgに相当する量の水性ラテックスと、テトラヒドロフラン10mLとを混合し、混合液を調製した;(3)混合液をPTFEフィルター(0.2μm)で濾過した;(4)前記(3)で得られる濾液を、HLC-82201(東ソー株式会社製)に供し、重量平均分子量を測定した。
水系塗料の製膜性は、以下の方法で評価した:(1)各水系塗料を、乾燥後の膜厚が100μmになるように、アルミ板にアプリケーターで塗装した;(2)得られたアルミ板を、25℃にて一晩静置し、水系塗料の塗膜を作製した;(3)得られたアルミ板の塗面状態を目視で確認し、下記の基準にて製膜性を評価した。
○(良好):クラックなし、
×(不良):クラックあり。
水系塗料の製造時のスケール発生量は、以下の方法で評価した:(1)各水系塗料を150メッシュの金網にてろ過した;(2)金網上に残った物質(スケール)を乾燥させ、乾燥後に当該スケールの重量を測定した;(3)スケールの重量を、グラフト共重合体(A)および重合体(B)の複合体の水性ラテックスの固形分量および水系塗料の製造時に添加した原料の合計重量で除し、得られた値に100を乗じて、スケール発生量(%)を算出した;(4)下記基準にてスケール発生量を評価した。
○(良好):スケール発生量が0.3%未満である、
×(不良):スケール発生量が0.3%以上である。
水系塗料の塗膜を水に浸漬した際のブリスター発生量は、以下の方法で評価した:(1)ガラス板にエポキシ系重防食塗料を塗布した;(2)得られたガラス板に対して、さらに、各水系塗料を乾燥後の膜厚が100μmになるようにアプリケーターで塗装した;(3)得られたガラス板を、25℃にて一晩静置し、エポキシ系重防食塗料および水系塗料の塗膜を作製した;(4)得られたガラス板を水に浸漬させ、1週間静置した;(5)静置後、ガラス板の塗面状態を目視で確認し、下記基準にてブリスター発生量を評価した。
◎(良好):塗面にブリスターなし、
〇(合格):ブリスターが塗面の一部に観察される、
△(不良):ブリスターが塗面の全面にみられる。
水系塗料の塗膜の撥水性は、以下の方法で評価した:(1)ガラス板にエポキシ系重防食塗料を塗布した;(2)得られたガラス板に対して、さらに、各水系塗料を乾燥後の膜厚が100μmになるようにアプリケーターで塗装した;(3)得られたガラス板を、25℃にて一晩静置し、エポキシ系重防食塗料および水系塗料の塗膜を作製した;(4)得られたガラス板を水に浸漬させ、1週間静置した;(5)静置後、ガラス板の塗膜の撥水性を、JIS R 3257に基づく静滴法により、接触角計(DropMaster、協和界面科学株式会社製)を用いて測定した。実施例において、上述の方法により測定して得られた塗膜の撥水性が90より大きい場合、当該塗膜は撥水性に優れると判定する。
水系塗料の塗膜の塗膜硬度は、以下の方法で評価した:(1)ガラス板にエポキシ系重防食塗料を塗布した;(2)得られたガラス板に対して、さらに、各水系塗料を乾燥後の膜厚が100μmになるようにアプリケーターで塗装した;(3)得られたガラス板を、25℃にて一晩静置し、エポキシ系重防食塗料および水系塗料の塗膜を作製した;(4)得られたガラス板を水に浸漬させ、1週間静置した;(5)静置後、ガラス板の塗膜の塗膜硬度を、振り子式硬度計(エリクセン社製)を用いて測定した。
(製造例1)
(工程1)
脱イオン水251重量部、SDS0.5重量部、並びにポリオルガノシロキサン形成用単量体混合物(オクタメチルシクロテトラシロキサン100重量部、および単量体Mとしてγ-アクリロイルオキシプロピルジメトキシメチルシラン2重量部からなる混合物)を混合した。得られた混合液を、ホモミキサーを使用し、10000rpmで5分間撹拌して、エマルジョンを調製した。得られたエマルジョンを、5口のガラス容器に、一度に全量投入した。ここで、前記ガラス容器は、温度計、撹拌機、還流冷却器、窒素流入口、並びに、単量体および乳化剤の添加口を有していた。投入した原料を撹拌しながら、(i)10%のドデシルベンゼンスルホン酸(DSA)水溶液の、当該水溶液中の固形分1重量部に相当する量をガラス容器に添加し、次いで(ii)ガラス容器内の温度を約40分かけて80℃まで昇温し、(iii)その後、ガラス容器内の混合物を80℃で6時間反応させた。その後、ガラス容器内の温度を25℃まで冷却し、ガラス容器内の温度が25℃に達した後、ガラス容器内の反応溶液を20時間放置した。その後、反応溶液のpHを、水酸化ナトリウムを使用してpH6.8に調整することにより、重合を終了した。以上の操作により、ポリオルガノシロキサンを含む水性ラテックス(R-1)を得た。単量体成分の重合転化率は97%であった。得られた水性ラテックス(R-1)に含まれるポリオルガノシロキサンの体積平均粒子径は280nmであった。
続いて、ガラス製反応器に、ポリオルガノシロキサンの水性ラテックス(R-1)275.5重量部(ポリオルガノシロキサン70重量部を含む)、および、脱イオン水121重量部を投入した。ここで、前記ガラス製反応器は、温度計、撹拌機、還流冷却器、窒素流入口、および単量体の添加装置を有していた。ガラス製反応器内の気体を窒素で置換しながら、60℃にて投入した原料を撹拌した。次に、EDTA0.004重量部、硫酸第一鉄・7水和塩0.001重量部、およびSFS0.13重量部をガラス製反応器内に加え、10分間撹拌した。その後、グラフト部形成用単量体混合物(BMA30重量部のみからなる)、連鎖移動剤としてt-ドデシルメルカプタン0.24重量部およびBHP0.085重量部の混合物をガラス製反応器内に、120分間かけて連続的に添加した。その後、BHP0.013重量部をガラス製反応器内に添加し、さらに1時間、ガラス製反応器内の混合物の撹拌を続けて重合を完結させた。以上の操作により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-1)を得た。単量体成分の重合転化率は97%以上であった。得られた水性ラテックス(L-1)に含まれるグラフト共重合体(A)の体積平均粒子径は293nmであった。
グラフト部形成用単量体混合物として、BMA29重量部、および反応性乳化剤としてエーテルサルフェート型のアニオン性界面活性剤(アリルオキシ基を有する)(ADEKA社製、アデカリアソープSR1025)1重量部からなる混合部を使用したこと以外は、製造例1と同じ方法により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-2)を得た。製造例2において、グラフト共重合体(A)の体積平均粒子径は294nmであった。
(a)水性ラテックス(R-1)の使用量を314.9重量部(ポリオルガノシロキサン80重量部を含む)に変更し、(b)グラフト部形成用単量体混合物中のBMAの使用量を19重量部に変更し、かつ(c)連鎖移動剤であるt-ドデシルメルカプタンの使用量を0.16重量部に変更したこと以外は、製造例2と同じ方法により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-3)を得た。製造例3において、グラフト共重合体(A)の体積平均粒子径は294nmであった。
(a)水性ラテックス(R-1)の使用量を334.5重量部(ポリオルガノシロキサン85重量部を含む)に変更し、(b)グラフト部形成用単量体混合物中のBMAの使用量を14重量部に変更し、かつ(c)連鎖移動剤であるt-ドデシルメルカプタンの使用量を0.12重量部に変更したこと以外は、製造例2と同じ方法により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-4)を得た。製造例4において、グラフト共重合体(A)の体積平均粒子径は294nmであった。
グラフト部形成用単量体混合物として、BMA28.7重量部、反応性乳化剤としてエーテルサルフェート型のアニオン性界面活性剤(アリルオキシ基を有する)(ADEKA社製、アデカリアソープSR1025)1重量部、および単量体Mとして3-メタクリロキシプロピルメチルジメトキシシランを0.3重量部からなる混合部を使用したこと以外は、製造例1と同じ方法により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-5)を得た。製造例5において、グラフト共重合体(A)の体積平均粒子径は292nmであった。
グラフト部形成用単量体混合物中のBMAの使用量を28.4重量部に変更し、かつ単量体Mである3-メタクリロキシプロピルメチルジメトキシシランの使用量を0.6重量部に変更したこと以外は、製造例5と同じ方法により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-6)を得た。製造例6において、グラフト共重合体(A)の体積平均粒子径は290nmであった。
グラフト部形成用単量体混合物中のBMAの使用量を27.5重量部に変更し、かつ単量体Mである3-メタクリロキシプロピルメチルジメトキシシランの使用量を1.5重量部に変更したこと以外は、製造例5と同じ方法により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-7)を得た。製造例7において、グラフト共重合体(A)の体積平均粒子径は290nmであった。
グラフト部形成用単量体混合物中のBMAの使用量を26重量部に変更し、かつ単量体Mである3-メタクリロキシプロピルメチルジメトキシシランの使用量を3.0重量部に変更したこと以外は、製造例5と同じ方法により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-8)を得た。製造例8において、グラフト共重合体(A)の体積平均粒子径は291nmであった。
グラフト部形成用単量体混合物において、BMA27.5重量部の代わりに、MMA27.5重量部を使用したこと以外は、製造例7と同じ方法により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-9)を得た。製造例9において、グラフト共重合体(A)の体積平均粒子径は294nmであった。
グラフト部形成用単量体混合物において、BMA27.5重量部の代わりに、MMA21重量部およびBA6.5重量部の混合物を使用したこと以外は、製造例7と同じ方法により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-10)を得た。製造例10において、グラフト共重合体(A)の体積平均粒子径は290nmであった。
グラフト部形成用単量体混合物において、BMA30重量部の代わりに、MMA6.5重量部およびBA21重量部の混合物を使用したこと以外は、製造例7と同じ方法により、グラフト共重合体(A)および重合体(B)を含む水性ラテックス(L-11)を得た。製造例11において、グラフト共重合体(A)の体積平均粒子径は291nmであった。
工程2において連鎖移動剤を使用しなかったこと以外は、製造例1と同じ方法により、グラフト共重合体および重合体を含む水性ラテックス(CL-1)を得た。比較製造例1において、グラフト共重合体の体積平均粒子径は295nmであった。
(a)水性ラテックス(R-1)の使用量を196.8重量部(ポリオルガノシロキサン50重量部を含む)に変更し、(b)グラフト部形成用単量体混合物中のBMAの使用量を49重量部に変更し、かつ(c)工程2において連鎖移動剤を使用しなかったこと以外は、製造例2と同じ方法により、グラフト共重合体および重合体を含む水性ラテックス(CL-2)を得た。比較製造例2において、グラフト共重合体の体積平均粒子径は296nmであった。
水性ラテックス(L-1)~(L-11)をそれぞれ用い、表1に示す配合例1および配合例2で実施例1~11の水系塗料を作成した。水性ラテックス(CL-1)~(CL-2)をそれぞれ用い、表1に示す配合例1および配合例2で比較例1~2の水系塗料を作成した。
Claims (15)
- グラフト共重合体(A)および重合体(B)を含み、
前記グラフト共重合体(A)は、ポリオルガノシロキサンと、当該ポリオルガノシロキサンに対して、グラフト結合されたグラフト部と、を含み、
前記ポリオルガノシロキサンは、(a)(a-1)分子内に1個以上の加水分解性シリル基と、(a-2)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体に由来する構成単位Uを含み、かつ(b)非架橋であり、
前記重合体(B)は、芳香族ビニル単量体、ビニルシアン単量体、および(メタ)アクリレート単量体からなる群より選択される1種以上の単量体に由来する構成単位を含み、
前記グラフト共重合体(A)および前記重合体(B)の合計100重量%中、前記ポリオルガノシロキサンは55重量%~90重量%であり、
前記グラフト共重合体(A)および前記重合体(B)の合計100重量%中、前記重合体(B)は5.0重量%以上である、水系塗料。 - 前記グラフト共重合体(A)および前記重合体(B)の複合体の重量平均分子量は150,000以下である、請求項1に記載の水系塗料。
- グラフト共重合体(A)および重合体(B)を含み、
前記グラフト共重合体(A)は、ポリオルガノシロキサンと、当該ポリオルガノシロキサンに対して、グラフト結合されたグラフト部と、を含み、
前記ポリオルガノシロキサンは、(a)(a-1)分子内に1個以上の加水分解性シリル基と、(a-2)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体に由来する構成単位Uを含み、かつ(b)非架橋であり、
前記重合体(B)は、芳香族ビニル単量体、ビニルシアン単量体、および(メタ)アクリレート単量体からなる群より選択される1種以上の単量体に由来する構成単位を含み、
前記グラフト共重合体(A)および前記重合体(B)の合計100重量%中、前記ポリオルガノシロキサンは55重量%~90重量%であり、
前記グラフト共重合体(A)および前記重合体(B)の複合体の重量平均分子量は150,000以下である、水系塗料。 - 前記グラフト共重合体(A)および前記重合体(B)の合計100重量%中、前記重合体(B)は5.0重量%以上である、請求項3に記載の水系塗料。
- 前記ポリオルガノシロキサンは、当該ポリオルガノシロキサン100重量%中、前記構成単位Uを0.001重量%~10.0重量%含む、請求項1~4の何れか1項に記載の水系塗料。
- 前記グラフト部のガラス転移温度は80℃以下である、請求項1~4の何れか1項に記載の水系塗料。
- 前記グラフト部は、さらに、反応性乳化剤に由来する構成単位を含む、請求項1~4の何れか1項に記載の水系塗料。
- 前記グラフト部は、当該グラフト部の全構成単位100重量%中、前記反応性乳化剤に由来する構成単位を0.1重量%~20.0重量%含む、請求項7に記載の水系塗料。
- 前記グラフト部は、さらに、(a)分子内に1個以上の加水分解性シリル基と、(b)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体Mに由来する構成単位を含む、請求項1~4の何れか1項に記載の水系塗料。
- 前記グラフト部は、当該グラフト部の全構成単位100重量%中、前記単量体Mに由来する構成単位を0.1重量%~20.0重量%含む、請求項9に記載の水系塗料。
- さらに防汚剤を含む、請求項1~4の何れか1項に記載の水系塗料。
- 前記ポリオルガノシロキサンの体積平均粒子径は、0.03μm~50.00μmである、請求項1~4の何れか1項に記載の水系塗料。
- 前記グラフト部のグラフト率は、75.0%以上である、請求項1~4の何れか1項に記載の水系塗料。
- 請求項1~4の何れか1項に記載の水系塗料を水中構造物に塗布する工程を含む、水系塗膜の製造方法。
- (a)オルガノシロキサン、および(b)(b-1)分子内に1個以上の加水分解性シリル基と、(b-2)1個以上のエチレン性不飽和基および/またはメルカプト基と、を含有する単量体M、を含むポリオルガノシロキサン形成用単量体混合物を重合してポリオルガノシロキサンを得る工程1と、
工程1で得られた前記ポリオルガノシロキサンの存在下でグラフト部形成用単量体混合物を重合する工程2と、を有し、
前記ポリオルガノシロキサン形成用単量体混合物および前記グラフト部形成用単量体混合物の合計100重量%中、前記ポリオルガノシロキサン形成用単量体混合物は55重量%~90重量%であり、
前記工程1では、前記ポリオルガノシロキサン形成用単量体混合物100重量%中、多官能性のアルコキシシラン化合物および多官能性単量体の合計使用量が0.50重量%以下であり、
前記工程2では、前記グラフト部形成用単量体混合物は、芳香族ビニル単量体、ビニルシアン単量体、および(メタ)アクリレート単量体からなる群より選択される1種以上の単量体を含み、
前記工程2では、前記グラフト部形成用単量体混合物100重量部に対して、連鎖移動剤0.01重量部~5.00重量部を使用する、水系塗料の製造方法。
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2022
- 2022-12-07 WO PCT/JP2022/045036 patent/WO2023106317A1/ja active Application Filing
- 2022-12-07 CN CN202280081302.9A patent/CN118369388A/zh active Pending
- 2022-12-07 JP JP2023566332A patent/JPWO2023106317A1/ja active Pending
- 2022-12-07 EP EP22904245.2A patent/EP4446352A1/en active Pending
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2024
- 2024-06-06 US US18/735,455 patent/US20240327671A1/en active Pending
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EP4446352A1 (en) | 2024-10-16 |
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JPWO2023106317A1 (ja) | 2023-06-15 |
US20240327671A1 (en) | 2024-10-03 |
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