JP6724921B2 - 共重合ポリエステルおよびこれを用いた金属プライマー塗料 - Google Patents
共重合ポリエステルおよびこれを用いた金属プライマー塗料 Download PDFInfo
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- JP6724921B2 JP6724921B2 JP2017539723A JP2017539723A JP6724921B2 JP 6724921 B2 JP6724921 B2 JP 6724921B2 JP 2017539723 A JP2017539723 A JP 2017539723A JP 2017539723 A JP2017539723 A JP 2017539723A JP 6724921 B2 JP6724921 B2 JP 6724921B2
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- copolyester
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- 229920001634 Copolyester Polymers 0.000 title claims description 55
- 229910052751 metal Inorganic materials 0.000 title claims description 43
- 239000002184 metal Substances 0.000 title claims description 43
- 239000002987 primer (paints) Substances 0.000 title claims description 26
- 150000005846 sugar alcohols Polymers 0.000 claims description 21
- 229920000728 polyester Polymers 0.000 claims description 16
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 15
- 230000009477 glass transition Effects 0.000 claims description 14
- 239000003431 cross linking reagent Substances 0.000 claims description 12
- 239000003973 paint Substances 0.000 claims description 12
- 239000003960 organic solvent Substances 0.000 claims description 10
- 125000001931 aliphatic group Chemical group 0.000 claims description 9
- 238000007334 copolymerization reaction Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000049 pigment Substances 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- 125000003118 aryl group Chemical group 0.000 claims description 7
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 6
- 150000001735 carboxylic acids Chemical class 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 50
- 239000011248 coating agent Substances 0.000 description 29
- 238000000576 coating method Methods 0.000 description 28
- -1 bisphenol A skeleton polyol Chemical class 0.000 description 24
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 16
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 14
- 239000002253 acid Substances 0.000 description 13
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 13
- 230000007797 corrosion Effects 0.000 description 13
- 238000005260 corrosion Methods 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 150000002148 esters Chemical class 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 239000000126 substance Substances 0.000 description 11
- 239000003054 catalyst Substances 0.000 description 10
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 7
- 238000006068 polycondensation reaction Methods 0.000 description 7
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- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
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- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical group C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 6
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 6
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- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000008199 coating composition Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000005011 phenolic resin Substances 0.000 description 5
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 229920003180 amino resin Polymers 0.000 description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 4
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 4
- 150000002576 ketones Chemical class 0.000 description 4
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 4
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 4
- 235000013772 propylene glycol Nutrition 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 4
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 229920000877 Melamine resin Polymers 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 125000002723 alicyclic group Chemical group 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 3
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- RMVRSNDYEFQCLF-UHFFFAOYSA-N thiophenol Chemical compound SC1=CC=CC=C1 RMVRSNDYEFQCLF-UHFFFAOYSA-N 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 2
- MIOPJNTWMNEORI-GMSGAONNSA-N (S)-camphorsulfonic acid Chemical compound C1C[C@@]2(CS(O)(=O)=O)C(=O)C[C@@H]1C2(C)C MIOPJNTWMNEORI-GMSGAONNSA-N 0.000 description 2
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N 1,3-propanediol Substances OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 2
- QWGRWMMWNDWRQN-UHFFFAOYSA-N 2-methylpropane-1,3-diol Chemical compound OCC(C)CO QWGRWMMWNDWRQN-UHFFFAOYSA-N 0.000 description 2
- TUAMRELNJMMDMT-UHFFFAOYSA-N 3,5-xylenol Chemical compound CC1=CC(C)=CC(O)=C1 TUAMRELNJMMDMT-UHFFFAOYSA-N 0.000 description 2
- ASHGTJPOSUFTGB-UHFFFAOYSA-N 3-methoxyphenol Chemical compound COC1=CC=CC(O)=C1 ASHGTJPOSUFTGB-UHFFFAOYSA-N 0.000 description 2
- SXFJDZNJHVPHPH-UHFFFAOYSA-N 3-methylpentane-1,5-diol Chemical compound OCCC(C)CCO SXFJDZNJHVPHPH-UHFFFAOYSA-N 0.000 description 2
- HXDOZKJGKXYMEW-UHFFFAOYSA-N 4-ethylphenol Chemical compound CCC1=CC=C(O)C=C1 HXDOZKJGKXYMEW-UHFFFAOYSA-N 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
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- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 2
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- 239000003377 acid catalyst Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
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- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 2
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- 239000002981 blocking agent Substances 0.000 description 2
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- 229910052918 calcium silicate Inorganic materials 0.000 description 2
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- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
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- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 2
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- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- XRVCFZPJAHWYTB-UHFFFAOYSA-N prenderol Chemical compound CCC(CC)(CO)CO XRVCFZPJAHWYTB-UHFFFAOYSA-N 0.000 description 1
- 229950006800 prenderol Drugs 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- RLJWTAURUFQFJP-UHFFFAOYSA-N propan-2-ol;titanium Chemical compound [Ti].CC(C)O.CC(C)O.CC(C)O.CC(C)O RLJWTAURUFQFJP-UHFFFAOYSA-N 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- NVKTUNLPFJHLCG-UHFFFAOYSA-N strontium chromate Chemical compound [Sr+2].[O-][Cr]([O-])(=O)=O NVKTUNLPFJHLCG-UHFFFAOYSA-N 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- WXYNMTGBLWPTNQ-UHFFFAOYSA-N tetrabutoxygermane Chemical compound CCCCO[Ge](OCCCC)(OCCCC)OCCCC WXYNMTGBLWPTNQ-UHFFFAOYSA-N 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N tetraisopropyl titanate Substances CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- AUTOISGCBLBLBA-UHFFFAOYSA-N trizinc;diphosphite Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])[O-].[O-]P([O-])[O-] AUTOISGCBLBLBA-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 150000003739 xylenols Chemical class 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C09D167/025—Polyesters derived from dicarboxylic acids and dihydroxy compounds containing polyether sequences
-
- 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
-
- 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
- C09D5/002—Priming paints
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
- Paints Or Removers (AREA)
Description
すなわち、本発明は、以下の構成からなる。
本発明の共重合ポリエステル(A)を用いた金属プライマー塗料は優れた屈曲性、硬度、耐食性、および耐薬品性を発揮する。このため、コーティング後に変形加工が必要な金属鋼板への下塗りに好適であり、本発明の共重合ポリエステル(A)を用いて製造された製品は高硬度且つ、高加工性、高耐食性を有する塗膜が得られる。
本発明の共重合ポリエステル(A)は架橋剤(B)とともに使用することができる。架橋剤(B)は公知の架橋剤を使用することが出来る。架橋剤(B)は、共重合ポリエステル(A)に対して架橋反応を生じるものであれば特に限定されないが、好ましい例としてイソシアネート化合物、エポキシ樹脂、アミノ樹脂(アルキルエーテル化ホルムアルデヒド樹脂の一般名称)、フェノール樹脂などを挙げることができ、これらより1種、または2種以上を任意に選択して使用できる。
本発明の共重合ポリエステル(A)は、顔料(C)とともに使用することができる。顔料(C)の具体例としては特に限定されないが、酸化チタン、酸化亜鉛、酸化ジルコニウム、炭酸カルシウム、硫酸バリウム、酸化アルミニウム、酸化クロム、クロム酸塩、カオリングレー、カーボンブラック、酸化鉄、タルク、マイカ、リン酸亜鉛、リン酸鉄、リン酸アルミニウム、亜リン酸亜鉛、トリポリリン酸アルミニウム、モリブデン酸カルシウム、モリブデン酸アルミニウム、モリブデン酸バリウム、酸化バナジウム、ストロンチウムクロメート、ジンククロメート、カルシウムシリケート、水分散シリカ、ヒュームドシリカなどの無機顔料やフタロシアニンブルー、フタロシアニングリーン、カルバゾールジオキサジンバイオレット、アントラピリミジンイエロー、イソインドリノンイエロー、インダスレンブルーなどの有機顔料を挙げることができる。これらを1種または2種以上添加することで、着色、防食、耐久性の向上、といった効果が期待できる。
本発明の共重合ポリエステル(A)は添加剤(D)を必要に応じて使用することができる。添加剤(D)の具体例としては特に限定されないが、p−トルエンスルホン酸、ドデシルベンゼンスルホン酸、カンファースルホン酸、リン酸化合物などの酸触媒、アミン化合物などの塩基触媒、消泡剤、レベリング剤、熱劣化防止剤、紫外線吸収剤、粘度調整剤、ワックスなどが挙げられる。これらを1種または2種以上使用することができる。添加剤(D)は塗膜物性に影響を与えない程度であれば、自由に配合することが出来る。好ましくは、共重合ポリエステル(A)100質量部に対して、0.1質量部以上5質量部以下である。
本発明で用いる有機溶剤(E)は、共重合ポリエステル(A)を溶解するものであれば特に限定されない。具体的には、トルエン、キシレン、ソルベッソ(登録商標)などの芳香族系炭化水素類、酢酸エチル、酢酸ブチル、プロピレングリコールモノメチルエーテルアセテート、二塩基酸エステルなどのエステル類、メチルエチルケトン、メチルイソブチルケトン、シクロヘキサノン、イソホロンなどのケトン類、n−ブチルセロソルブ、t−ブチルセロソルブなどのエーテル類等が挙げられ、溶解性、蒸発速度(乾燥性)などを考慮して任意に選択、配合される。なかでも芳香族系炭化水素類とケトン類との混合溶媒であることが好ましく、ソルベッソとシクロヘキサノンの混合溶媒であることが好ましい。
本発明の金属プライマー塗料は、共重合ポリエステル(A)、架橋剤(B)、顔料(C)、添加剤(D)および有機溶剤(E)を含有する塗料である。
本発明の金属塗装板は、金属板の少なくとも片面に、本発明の金属プライマー塗料をプライマー層として有するものである。塗装方法について、特に限定はされないが、ロールコーター塗装、カーテンフローコーター塗装、エアースプレー塗装、静電スプレー塗装、スクリーン印刷等を取ることができる。
また、金属板としては、特に限定されないが、例えば熱延伸鋼板、電気亜鉛メッキ鋼板、合金メッキ鋼板、アルミニウム亜鉛合金メッキ鋼板、アルミニウム板、錫メッキ鋼板、ステンレス鋼板、銅板、銅メッキ鋼板、ティンフリースチール、ニッケルメッキ鋼板、極薄錫メッキ鋼板、クロム処理鋼板などの金属板が好ましい。
400MHzの1H−核磁気共鳴スペクトル装置(以下、NMRと略記することがある)を用い、共重合ポリエステル(A)を構成する多価カルボン酸成分、多価アルコール成分のモル比定量を行った。溶媒には重クロロホルムを使用した。なお、酸後付加により共重合ポリエステルの酸価を上げた場合には、酸後付加に用いた酸成分以外の酸成分の合計を100モル%として、各成分のモル比を算出した。
試料(共重合ポリエステル(A))4mgを、4mLのテトラヒドロフランに溶解した後、孔径0.2μmのポリ四フッ化エチレン製メンブランフィルターでろ過した。これを試料溶液とし、ゲル浸透クロマトグラフィー(GPC)で分析を行った。装置はTOSOH HLC−8220、検出器は示差屈折率検出器、移動相はテトラヒドロフランを用い、流速1mL/分、カラム温度40℃で測定した。カラムは昭和電工製KF−802、804L、806Lを用いた。分子量標準には単分散ポリスチレンを使用し、数平均分子量は標準ポリスチレン換算値とし、分子量1000未満に相当する部分を省いて算出した。
示差走査型熱量計(SII社、DSC−200)を用いて測定した。試料(共重合ポリエステル(A))5mgをアルミニウム抑え蓋型容器に入れ密封し、液体窒素を用いて−50℃まで冷却した。次いで150℃まで20℃/分の昇温速度にて昇温させ、昇温過程にて得られる吸熱曲線において、吸熱ピークが出る前(ガラス転移温度以下)のベースラインの延長線と、吸熱ピークに向かう接線(ピークの立ち上がり部分からピークの頂点までの間での最大傾斜を示す接線)との交点の温度をもって、ガラス転移温度(Tg、単位:℃)とした。
試料(共重合ポリエステル(A))0.2gを精秤しクロロホルム40mlに溶解した。次いで、0.01Nの水酸化カリウムのエタノール溶液で滴定を行った。指示薬にはフェノールフタレインを用いた。試料に対して、水酸化カリウム当量を求め、測定値を試料106gあたりの当量に換算し、単位は当量/106gとした。
試料(共重合ポリエステル(A))0.10gをフェノール/テトラクロロエタン(重量比6/4)の混合溶媒25ccに溶かし、ウベローデ粘度管を用いて30℃で測定した。
攪拌機、コンデンサー、温度計を具備した反応容器にテレフタル酸ジメチル809部、イソフタル酸ジメチル793部、トリメリット酸無水物19部、エチレングリコール407部、ネオペンチルグリコール540部、トリエチレングリコール287部、触媒としてオルトチタン酸テトラブチルを全酸成分に対して0.03モル%仕込み、160℃から220℃まで4時間かけて昇温、脱メタノール工程を経ながらエステル交換反応を行った。次に重縮合反応工程は、系内を20分かけて5mmHgまで減圧し、さらに250℃まで昇温を進めた。次いで、0.3mmHg以下まで減圧し、60分間の重縮合反応を行い、これを取り出した。得られた共重合ポリエステル(a1)はNMRによる組成分析の結果、モル比でテレフタル酸/イソフタル酸/トリメリット酸/エチレングリコール/ネオペンチルグリコール/トリエチレングリコール=50/49/1/40/40/20[モル比]であった。また、数平均分子量は7000、ガラス転移温度は40℃、酸価は20eq/106g、であった。結果を表1に記した。
共重合ポリエステル(a1)の製造例に準じ、原料の種類と配合比率を変更して、本発明の共重合ポリエステル(a2)〜(a11)を製造した。結果を表1に記した。
金属プライマー塗料(A1)の調製
共重合ポリエステル(a1)80部をシクロヘキサノン100部、ソルベッソ150 100部の混合溶剤で溶解した。これにカルシウムシリケート50部、トリポリリン酸アルミニウム13部、酸化チタン37部をいれ、振とう機を用い6時間分散した。さらに、架橋剤としてサイメル303(オルネクス社製、メラミン硬化剤)20部、硬化触媒としてドデシルベンゼンスルホン酸0.2部入れ、本発明の金属プライマー塗料(A1)とした。
金属プライマー塗料(A2)〜(K1)の調製
金属プライマー塗料(A1)と同様の方法にて、本発明の実施例または比較例である金
属プライマー塗料(A2)〜(K1)を得た。配合比率は表2に示した。
試験片の作成
0.5mm厚の溶融亜鉛めっき鋼板を用意し、これに前記実施例に記載の金属プライマー塗料を乾燥後の膜厚が5μmとなる様に塗装し、210℃で45秒乾燥した。さらにこの上に乾燥後の膜厚が15μmとなるように数平均分子量が15000でガラス転移温度が38℃の共重合ポリエステル樹脂16質量部、メラミン樹脂4質量部、酸化チタン20質量部とシクロヘキサノン60質量部より作製した上塗り塗料を塗装し、250℃で60秒乾燥し、金属塗装板の試験片を得た。
前記金属塗装板試験片の塗装面に対し鉛筆の芯を45度の角度で当て、1kgの荷重で前方向に滑らせた。鉛筆の芯の堅さは硬い方から、H、F、HB、B、2Bを用い、傷がつかない最高硬度を評価した。硬度が高いほど塗膜の硬度は高く、傷がつきにくい。
評価基準
○:H以上
△:F〜B
×:2B以下
前記金属塗装板試験片を25℃下で180°折り曲げ試験を行い。目視にて、塗膜の割れを確認した。2Tとは、試験金属板と同じ厚さの金属板を2枚挟んで折り曲げた際に塗膜の割れが発生しないことである。数字が小さいほど屈曲性が良好である。
○:0〜2T
△:3〜4T
×:5T以上
前記金属塗装板試験片の端部をテープで保護し、カッターナイフで表面に素地まで達するクロスカットを施した後に、JIS Z2371−2015記載の方法で500時間の中性塩水噴霧試験を実施した。試験後の塗装板のクロスカット部からの膨れの大きさを測定した。膨れの大きさが小さいほど、耐食性が良好である。
評価基準
○:直径3mm以下
△:直径3mmを超えて7mm未満
×:直径7mm以上
得られた共重合ポリエステル(A)をシクロヘキサノンとソルベッソ150の同重量比率の混合溶液に固形分濃度60重量%で溶解し、B型回転粘度計(東京計器(株)製,EM型、ローターNo.4、12rpm)を用いて、25℃条件下で溶液粘度を測定した。溶液粘度が200ポイズを超えると塗料製造時の取り扱いが難しくなる。
評価基準
○:130ポイズ未満
△:130ポイズ以上200ポイズ以下
×:200ポイズを超える
前記金属塗装板試験片の端部をテープで保護し、25℃雰囲気下、5重量%の水酸化ナトリウム水溶液に48時間浸漬後、外観を目視し、評価した。膨れ等が少ないほど耐薬品性が良好である。
○:膨れなし〜直径1mm未満の微小な膨れ
△:直径1mm以上の大きな膨れがある
×:塗膜が剥がれる
Claims (4)
- 多価カルボン酸成分と多価アルコール成分を共重合成分とする共重合ポリエステルであって、全多価カルボン酸成分を100モル%としたときに、芳香族ジカルボン酸成分が95〜100モル%、脂肪族ジカルボン酸成分が0〜5モル%であり、かつ全多価アルコール成分を100モル%としたときに、トリエチレングリコールが1〜30モル%であり、ガラス転移温度が25〜50℃の範囲であり、数平均分子量が4000〜9000の範囲である共重合ポリエステル(A)。
- 脂肪族ジカルボン酸成分を含まない請求項1に記載の共重合ポリエステル(A)。
- 請求項1または2に記載の共重合ポリエステル(A)、架橋剤(B)、顔料(C)、添加剤(D)、および有機溶剤(E)を含有する金属プライマー塗料。
- 請求項3に記載の金属プライマー塗料をプライマー層として有する金属塗装板。
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PCT/JP2016/069141 WO2017047197A1 (ja) | 2015-09-16 | 2016-06-28 | 共重合ポリエステルおよびこれを用いた金属プライマー塗料 |
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WO2018084064A1 (ja) * | 2016-11-04 | 2018-05-11 | Dic株式会社 | ポリエステルポリオール樹脂及び塗料 |
WO2020149082A1 (ja) * | 2019-01-17 | 2020-07-23 | 東洋紡株式会社 | 共重合ポリエステルおよび水分散体 |
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