WO2022186294A1 - 水性分散体 - Google Patents
水性分散体 Download PDFInfo
- Publication number
- WO2022186294A1 WO2022186294A1 PCT/JP2022/008954 JP2022008954W WO2022186294A1 WO 2022186294 A1 WO2022186294 A1 WO 2022186294A1 JP 2022008954 W JP2022008954 W JP 2022008954W WO 2022186294 A1 WO2022186294 A1 WO 2022186294A1
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- WO
- WIPO (PCT)
- Prior art keywords
- mass
- aqueous dispersion
- acid
- parts
- modified polyolefin
- Prior art date
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- 239000006185 dispersion Substances 0.000 title claims abstract description 72
- 229920000098 polyolefin Polymers 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000000576 coating method Methods 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 32
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 16
- 239000012875 nonionic emulsifier Substances 0.000 claims abstract description 14
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004711 α-olefin Substances 0.000 claims abstract description 10
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims abstract description 7
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims abstract description 7
- -1 polyoxyethylene structure Polymers 0.000 claims description 38
- 239000003973 paint Substances 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 13
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 239000012736 aqueous medium Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 abstract description 18
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- 239000000839 emulsion Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 36
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 18
- 238000011156 evaluation Methods 0.000 description 17
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- 239000000203 mixture Substances 0.000 description 13
- 229920001155 polypropylene Polymers 0.000 description 13
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 12
- 238000001035 drying Methods 0.000 description 12
- 238000003860 storage Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
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- 230000008018 melting Effects 0.000 description 11
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
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- 230000008859 change Effects 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 239000008199 coating composition Substances 0.000 description 7
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- 150000001412 amines Chemical class 0.000 description 6
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 6
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 6
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- 238000010438 heat treatment Methods 0.000 description 5
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- 239000000049 pigment Substances 0.000 description 5
- 239000005977 Ethylene Substances 0.000 description 4
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 4
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- 238000002156 mixing Methods 0.000 description 4
- 239000012462 polypropylene substrate Substances 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
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- 230000007613 environmental effect Effects 0.000 description 3
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- 239000000463 material Substances 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
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- 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
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000951471 Citrus junos Species 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
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- 235000015278 beef Nutrition 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000004210 ether based solvent Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
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- 150000004665 fatty acids Chemical class 0.000 description 2
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- 238000005227 gel permeation chromatography Methods 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- HGXJDMCMYLEZMJ-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOOC(=O)C(C)(C)C HGXJDMCMYLEZMJ-UHFFFAOYSA-N 0.000 description 1
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 description 1
- JOLQKTGDSGKSKJ-UHFFFAOYSA-N 1-ethoxypropan-2-ol Chemical compound CCOCC(C)O JOLQKTGDSGKSKJ-UHFFFAOYSA-N 0.000 description 1
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 description 1
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 description 1
- PYSGFFTXMUWEOT-UHFFFAOYSA-N 3-(dimethylamino)propan-1-ol Chemical compound CN(C)CCCO PYSGFFTXMUWEOT-UHFFFAOYSA-N 0.000 description 1
- LDTAOIUHUHHCMU-UHFFFAOYSA-N 3-methylpent-1-ene Chemical compound CCC(C)C=C LDTAOIUHUHHCMU-UHFFFAOYSA-N 0.000 description 1
- LDMRLRNXHLPZJN-UHFFFAOYSA-N 3-propoxypropan-1-ol Chemical compound CCCOCCCO LDMRLRNXHLPZJN-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 1
- QZXSMBBFBXPQHI-UHFFFAOYSA-N N-(dodecanoyl)ethanolamine Chemical compound CCCCCCCCCCCC(=O)NCCO QZXSMBBFBXPQHI-UHFFFAOYSA-N 0.000 description 1
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
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- 239000012948 isocyanate 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
- 238000000691 measurement method Methods 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-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
- ZUHZZVMEUAUWHY-UHFFFAOYSA-N n,n-dimethylpropan-1-amine Chemical compound CCCN(C)C ZUHZZVMEUAUWHY-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- 229940113162 oleylamide Drugs 0.000 description 1
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
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- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
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- 229920000728 polyester Polymers 0.000 description 1
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- 229920005990 polystyrene resin Polymers 0.000 description 1
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- 239000013615 primer Substances 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
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- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
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- WYKYCHHWIJXDAO-UHFFFAOYSA-N tert-butyl 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOC(C)(C)C WYKYCHHWIJXDAO-UHFFFAOYSA-N 0.000 description 1
- ROEHNQZQCCPZCH-UHFFFAOYSA-N tert-butyl 2-tert-butylperoxycarbonylbenzoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1C(=O)OC(C)(C)C ROEHNQZQCCPZCH-UHFFFAOYSA-N 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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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
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L23/28—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
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- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
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- 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/26—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers modified by chemical after-treatment
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- 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
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/26—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers modified by chemical after-treatment
- C09D123/28—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
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- 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
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/06—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/26—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers modified by chemical after-treatment
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- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/26—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers modified by chemical after-treatment
- C09J123/28—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers modified by chemical after-treatment by reaction with halogens or compounds containing halogen
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- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/06—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2618—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen
- C08G65/2633—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen the other compounds containing amide groups
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
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- C08L2201/00—Properties
- C08L2201/54—Aqueous solutions or dispersions
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2451/00—Presence of graft polymer
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
Definitions
- the present invention when used as a primer for polypropylene substrates, suppresses bleeding out after preheating, does not cause coating defects such as sagging and shearing of the base coat, and can provide a smooth and high-appearance coating film. It relates to a modified polyolefin aqueous dispersion that can be made.
- a conductive primer is coated with a non-polar resin such as acid-modified polyolefin or chlorinated acid-modified polyolefin as a binder.
- a non-polar resin such as acid-modified polyolefin or chlorinated acid-modified polyolefin as a binder.
- the general process is to form a layered coating film in the order of water-based primer - water-based base coat - clear coat.
- smoothness is inferior to solvent-based coating systems, and because a small amount of organic solvent is added to improve wettability, it achieves excellent smoothness, sagging, and dispersion stability.
- Patent Document 1 describes that a base coat containing a water-dispersible acrylic copolymer and internal non-crosslinked acrylic fine particles within a certain range can provide a coating film excellent in sagging, smoothness, and storage stability.
- Patent Document 2 describes that by adding a nitrogen-containing polyoxyalkylene derivative to an aqueous dispersant, excellent water dispersibility and dispersion stability are maintained even in the presence of alcohols and ethers. .
- the present invention provides a resin emulsion for a primer that can suitably control slippage and sagging when a base coat is applied and can obtain a smooth appearance in a water-based coating system for plastic coating. It is intended to
- the present inventors have found that when an aqueous dispersion containing a specific compound and exhibiting a specific pure water contact angle when baked at 80°C is used as an olefin-based aqueous binder in a primer, preheating at a high temperature
- the present inventors have found that, when coated with a base coat, they have excellent sagging and shear resistance on vertical surfaces, as well as excellent smoothness, leading to the present invention.
- the present invention contains a polyolefin resin (A) obtained by acid-modified polyolefin having a butene component content in the range of 2 to 35% by mass, a nitrogen-containing nonionic emulsifier (B), and water, and a coating after baking at 80 ° C.
- the aqueous dispersion is characterized in that the pure water contact angle of the film is 40° to 90°.
- the acid-modified polyolefin resin (A) preferably has a weight average molecular weight of 50,000 to 150,000 and is preferably chlorinated.
- the nitrogen-containing nonionic emulsifier (B) preferably contains an ethylene oxide structure and has an ethylene oxide mole number (the number of ethylene oxide units per molecule) of 10 or more and 30 or less. Further, the nitrogen-containing nonionic emulsifier (B) preferably has an alkyl group in its structure and has 10 or more alkyl carbon atoms. Also, the Z-average particle size of the aqueous dispersion is preferably in the range of 80 nm to 250 nm. Said aqueous dispersions can be used in paints, automotive coatings, primers or adhesives.
- the aqueous dispersion composition according to the present invention when used as a primer for a polypropylene substrate, suppresses bleeding out after preheating, does not cause coating defects such as sagging and shearing of the base coat, and has a smooth and high appearance. can give a good coating.
- the aqueous dispersion of the present invention contains an acid-modified polyolefin resin (A), a nitrogen-containing nonionic emulsifier (B) and water, and the acid-modified polyolefin resin (A) has a butene content of 2 to 35 mass in the polyolefin component. % propylene- ⁇ -olefin copolymer.
- the acid-modified polyolefin resin (A) used in the present invention is a polyolefin obtained by acid-modifying a propylene- ⁇ -olefin copolymer having a 1-butene content of 2 to 35% by mass.
- Modified polyolefin (A) is preferably acid-modified polyolefin or acid-modified chlorinated polyolefin.
- ⁇ Acid-modified polyolefin examples include ⁇ , ⁇ -unsaturated carboxylic acids and acid anhydrides thereof. Obtained by grafting at least one ⁇ , ⁇ -unsaturated carboxylic acid and its acid anhydride to a propylene- ⁇ -olefin copolymer having a 1-butene content of 2 to 35% by mass in the olefin component. is preferred.
- Propylene- ⁇ -olefin copolymer is a copolymer containing propylene and ⁇ -olefin as copolymer components. Polymerized ones are preferred.
- ⁇ -olefins other than propylene and butene include ethylene, isobutene, 1-pentene, 3-methyl-1-pentene, 1-hexene, 1-heptene, 1-octene, 4-methyl-1-pentene, and acetic acid.
- One or several of vinyls and the like can be used. Among these ⁇ -olefins, ethylene is preferred.
- the propylene- ⁇ -olefin copolymer preferably contains 50% by mass or more of the propylene component, more preferably 60% by mass or more, and particularly preferably 65% by mass or more. Within the above range, the adhesiveness and adhesion to polyolefin base materials such as propylene base materials are good. Also, the 1-butene component is 2 to 35% by mass in the olefin component. It is preferably 3 to 33% by mass, particularly preferably 5 to 31% by mass. Within this range, the emulsifier component is less likely to bleed, the water contact angle is within a suitable range, and good coating workability against slip resistance is obtained.
- Examples of at least one ⁇ , ⁇ -unsaturated carboxylic acid and its acid anhydride include maleic acid, itaconic acid, citraconic acid and acid anhydrides thereof. Among these, acid anhydrides are preferred, and maleic anhydride is more preferred. Specific examples include maleic anhydride-modified propylene-butene copolymers, maleic anhydride-modified propylene-ethylene-butene copolymers, and the like, and these acid-modified polyolefins may be used singly or in combination of two or more. can be done.
- the method for producing the acid-modified polyolefin is not particularly limited. reaction to graft polymerize), and the like.
- Examples of the radical generator include, but are not limited to, organic peroxides and azonitriles, and it is preferable to use organic peroxides.
- organic peroxides include, but are not limited to, di-tert-butyl peroxyphthalate, tert-butyl hydroperoxide, dicumyl peroxide, benzoyl peroxide, tert-butyl peroxybenzoate, tert-butyl peroxy- 2-ethylhexanoate, tert-butyl peroxypivalate, methyl ethyl ketone peroxide, di-tert-butyl peroxide, lauroyl peroxide, etc., azonitriles such as azobisisobutyronitrile, azobisisopropionitrile, etc. mentioned.
- the acid-modified amount of the acid-modified polyolefin is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, and particularly preferably 0.5% by mass or more. Further, it is preferably 10% by mass or less, more preferably 8% by mass or less, particularly preferably 7% by mass or less, and further preferably 1.5% by mass or less from the viewpoint of making the water contact angle preferable. When it is 0.1% by mass or more, the dispersibility in water tends to be good, and when it is 10% by mass or less, the water resistance of the coating film tends to be good.
- the weight average molecular weight (Mw) of the modified polyolefin (A) is preferably in the range of 50,000 to 150,000. More preferably in the range of 60,000 to 115,000, still more preferably in the range of 70,000 to 110,000, particularly preferably in the range of 75,000 to 105,000, most preferably 80 ,000 to 100,000.
- Mw weight average molecular weight
- GPC Gel Permeation Chromatography Alliance e2695
- Standard material polystyrene resin
- mobile phase tetrahydrofuran
- column Shodex KF-806 + KF-803
- column temperature 40° C.
- flow rate 1.0 ml/min
- the modified polyolefin (A) is preferably crystalline. Being crystalline is advantageous because it has stronger cohesive force and is superior in adhesiveness, water resistance, heat resistance, and chemical resistance as compared with amorphous.
- the crystallinity referred to in the present invention is measured from ⁇ 100° C. to 250° C. at 10° C./ min. and shows a clear melting peak during the heating process. Melting point and heat of fusion were measured using DSC at 10°C/min. It is a value measured from the top temperature and area of the melting peak when the material is melted at a temperature rising at a rate of , cooled to form a resin, and melted again at a high temperature.
- the melting point (Tm) of the modified polyolefin (A) is preferably 50°C or higher. It is more preferably 60° C. or higher, still more preferably 70° C. or higher, and particularly preferably 75° C. or higher. Also, it is preferably 120° C. or lower, more preferably 100° C. or lower, and still more preferably 90° C. or lower.
- Tm melting point
- the temperature is 50° C. or higher, the crystal-derived cohesive force becomes stronger, and the adhesiveness, water resistance, heat resistance, and chemical resistance become better.
- the temperature is 120° C. or lower, the solubility is good and it becomes easy to prepare an aqueous dispersion composition.
- modified polyolefin (A) used in the present invention is not limited, a chlorinated one can also be used.
- the chlorinated polyolefin an acid-modified chlorinated polyolefin obtained by chlorinating the acid-modified polyolefin is preferable.
- the method for producing the acid-modified chlorinated polyolefin is not particularly limited. For example, it can be obtained by dissolving the acid-modified polyolefin in a halogenated hydrocarbon such as chloroform and introducing chlorine.
- the chlorine content of the acid-modified chlorinated polyolefin is, from the viewpoint of solution stability and adhesion between the polyolefin substrate and the resin or metal substrate,
- the lower limit is preferably 5% by mass or more, more preferably 8% by mass or more, still more preferably 10% by mass or more, and particularly preferably 12% by mass or more.
- the upper limit is preferably 40% by mass or less, more preferably 38% by mass or less, still more preferably 35% by mass or less, and particularly preferably 30% by mass or less. If it is 40% by mass or less, the crystallinity of the acid-modified chlorinated polyolefin tends to be high, and the adhesive strength tends to be high.
- the chlorine content of acid-modified chlorinated polyolefin can be measured by titration according to JIS K-7229-1995.
- the emulsifier (B) contained in the aqueous dispersion of the present invention is a nitrogen-containing nonionic emulsifier.
- Nitrogen-containing nonionic surfactants include polyoxyalkylene alkylamine types such as polyoxyethylene laurylamine, polyoxyethylene stearylamine, polyoxyethylene coconut oil amine, polyoxyethylene beef tallow amine, and polyoxyethylene polyoxypropylene.
- Polyoxyalkyleneamine type such as monoamine, polyoxyethylene oleylamide, polyoxyethylene coconut oil fatty acid amide, polyoxyethylene laurylamide, polyoxyethylene stearylamide, polyoxyethylene beef tallow amide, polyoxyethylene coconut oil fatty acid monoethanolamide , and polyoxyalkylene alkylamide types such as polyoxyethylene lauryl monoethanolamide.
- polyoxyethylene tallow amine is preferable because it exhibits a suitable contact angle and good shear resistance and storage stability.
- As a polyoxyethylenealkylamide type it exhibits a suitable contact angle.
- Polyoxyethylene laurylamide is preferred because of its good shear resistance and storage stability, and these can be used alone or in combination of two or more. It is preferable to contain a polyoxyethylene structure, and it is particularly preferable to contain a polyoxyethylene structure and not contain a polyoxypropylene structure from the viewpoint of obtaining a suitable water contact angle and good shear resistance.
- the nitrogen-containing nonionic emulsifier (B) preferably has an alkyl group with 10 or more carbon atoms in its structure. More preferably, it is 12 or more. Within this range, a suitable water contact angle can be obtained, good coating workability can be obtained with respect to shear resistance, and water resistance can be improved.
- the nitrogen-containing nonionic emulsifier (B) preferably has a molar number of ethylene oxide (EO) (the number of ethylene oxide units per molecule) in the range of 10-30. More preferably 12 to 28 or more, particularly preferably 13 to 25. When it is within the range of 10 to 30, water dispersibility in emulsification is stable, a suitable water contact angle is obtained, and good coating workability is obtained.
- EO ethylene oxide
- the nitrogen-containing nonionic emulsifier (B) is preferably 1 part by mass or more, more preferably 2 parts by mass or more, and 3 parts by mass or more with respect to 100 parts by mass of the modified polyolefin resin (A). is more preferable, 4 parts by mass or more is particularly preferable, and 5 parts by mass or more is most preferable. Further, it is preferably 30 parts by mass or less, more preferably 28 parts by mass or less, further preferably 25 parts by mass or less, particularly preferably 22 parts by mass or less, and 20 parts by mass or less. Most preferably there is. When the amount is 1 part by mass or more, emulsification tends to occur easily, and when the amount is 30 parts by mass or less, the water resistance of the coating film tends to be good.
- the method of blending the nitrogen-containing nonionic emulsifier (B) is not particularly limited. good. It is preferably formulated in the form of an aqueous solution diluted to 1 to 50% by mass in order to be quickly mixed with the aqueous dispersion composition. By blending the emulsifier in the aqueous solution state with the aqueous dispersion composition, the emulsifier quickly adsorbs to the particles.
- the aqueous dispersion containing the modified polyolefin resin (A) preferably has a pure water contact angle of 40° or more, more preferably 45° or more, and particularly preferably 50° or more after film formation at 80°C. Also, it is preferably 90° or less, more preferably 85° or less, and particularly preferably 80° or less. When the angle is 40° or more, shear hardly occurs in the drying process after the application of the base coat and the clear coat.
- the Z-average particle size of the aqueous dispersion containing the modified polyolefin resin (A) is preferably 80 nm or more. It is more preferably 85 nm or more, still more preferably 90 nm or more. Also, it is preferably 250 nm or less, more preferably 230 nm or less, and even more preferably 200 nm or less. When it is 80 nm or more, the aqueous dispersion has good storage stability, and when it is 250 nm or less, the wettability to the substrate tends to improve and the adhesion to the substrate tends to be good.
- the viscosity of the aqueous dispersion containing the modified polyolefin resin (A) is preferably 5 mPa ⁇ s or more, more preferably 10 mPa ⁇ s or more. Moreover, 300 mPa*s or less is preferable and 250 mPa*s or less is more preferable.
- the pH of the aqueous dispersion of the present invention is preferably 5 or more and 10 or less, more preferably 7 or more, particularly preferably 8.3 or more, and still more preferably 8.5 or more.
- the aqueous dispersion of the invention can also be used as an adhesive. Also, by mixing the aqueous dispersion of the present invention with a pigment dispersion, a paint can be obtained, which can also be used as an automotive paint.
- the method for producing the aqueous dispersion is not particularly limited, but examples thereof include the following production methods. That is, the modified polyolefin (A) and the emulsifier (B) are dissolved in one or more solvents selected from the group consisting of ether solvents, alcohol solvents and aromatic solvents, and water, and a basic substance is added. , can be obtained by removing these solvents after cooling.
- ether-based solvent examples include, but are not limited to, tetrahydrofuran (hereinafter also referred to as THF), propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, and the like. The above can be used in combination.
- THF tetrahydrofuran
- propylene glycol monomethyl ether propylene glycol monoethyl ether
- propylene glycol monopropyl ether examples include, but are not limited to, tetrahydrofuran (hereinafter also referred to as THF), propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, and the like. The above can be used in combination.
- the alcohol-based solvent is not particularly limited, but includes aliphatic alcohols having 1 to 7 carbon atoms, aromatic alcohols, alicyclic alcohols, and the like, and these may be used alone or in combination of two or more. can.
- Aromatic solvents include benzene, toluene, xylene, ethylbenzene, isopropylbenzene, solvent naphtha, etc. These can be used alone or in combination of two or more.
- the basic substance is not particularly limited, volatile basic substances are preferred, and ammonia and amines are particularly preferred.
- Amines are not particularly limited, but monomethylamine, dimethylamine, trimethylamine, monoethylamine, mono-n-propylamine, dimethyl-n-propylamine, monoethanolamine, diethanolamine, triethanolamine, N-methylethanolamine.
- N-aminoethylethanolamine, N-methyldiethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, N,N-dimethylethanolamine, and N,N-dimethylpropanolamine, etc. and particularly preferred are triethylamine and N,N-dimethylethanolamine.
- These volatile amines can be used alone or in combination of two or more.
- the basic substance is preferably 0.5 parts by mass or more, more preferably 1 part by mass or more, and further preferably 2 parts by mass or more with respect to 100 parts by mass of the modified polyolefin resin (A). preferable. Also, it is preferably 10 parts by mass or less, more preferably 9 parts by mass or less, even more preferably 8 parts by mass or less, and particularly preferably 7 parts by mass or less. When the content is 0.5 parts by mass or more and 10 parts by mass or less, the particle size of the dispersed particles does not become too large, and the storage stability is particularly good.
- a curing agent may be added to the aqueous dispersion of the present invention as necessary in order to further improve performance such as water resistance and solvent resistance.
- curing agents include, but are not limited to, aqueous polyfunctional carbodiimide resins, aqueous dispersions of polyfunctional isocyanate compounds, aqueous polyfunctional oxazoline resins, water-soluble silane coupling agents containing polyfunctional silyl groups, and aqueous melamine compounds. etc. These curing agents are preferably blended in an amount of 2 to 30 parts by weight per 100 parts by weight of the resin in the aqueous dispersion composition of the present invention.
- additives such as fillers, pigments, colorants, and antioxidants may be added to the aqueous dispersion of the present invention as long as the effects of the present invention are not impaired.
- the blending amount of these additives is preferably 150 parts by mass or less, more preferably 140 parts by mass or less, and still more preferably 130 parts by mass or less with respect to 100 parts by mass of the resin in the aqueous dispersion composition. is. Moreover, it is preferably 5 parts by mass or more, more preferably 2 parts by mass or more. By setting the amount within the above range, the excellent effect of the present invention can be exhibited.
- Aqueous Dispersion Solid Content Concentration About 1 g of a sample aqueous dispersion was placed in a 50 ml glass weighing bottle and accurately weighed. Next, the weighing bottle containing the sample was dried in a hot air dryer at 120° C. for 2 hours, and the taken out weighing bottle was placed in a desiccator and allowed to stand and cooled at room temperature for 30 minutes. The weighing bottle was taken out from the desiccator, the mass was accurately weighed, and the mass % of the solid content concentration of the aqueous dispersion was calculated from the weight change (formula below) before and after hot air drying.
- Aqueous dispersion solid content concentration (% by mass) 100 - [(Sample mass before hot air drying) - (Sample mass after hot air drying)] / (Sample mass before hot air drying) x 100
- the amount of acid modification in the case of acid modification with maleic anhydride can be determined by FT-IR (FT-IR8200PC manufactured by Shimadzu Corporation).
- FT-IR FT-IR8200PC manufactured by Shimadzu Corporation.
- a calibration curve solution is prepared by dissolving maleic anhydride at an arbitrary concentration.
- the modified polyolefin (A) is dissolved in chloroform and subjected to FT-IR measurement, and based on the calibration curve, the amount of acid modification of maleic anhydride is determined from the absorbance of the stretching peak (1780 cm -1 ) of the carbonyl bond of maleic anhydride.
- the melting point and heat of fusion in the present invention are measured using a differential scanning calorimeter (DSC, Q-2000, manufactured by TA Instruments Japan) at a rate of 10°C/min. It is a value measured from the top temperature of the melting peak when the resin is melted, cooled to form a resin, and melted again by heating.
- DSC differential scanning calorimeter
- Tg glass transition temperature
- Table 1 shows the compositions of the aqueous dispersions used in the following examples and comparative examples.
- the liquid containing the resin was centrifuged to separate and purify the acid-modified propylene-butene copolymer grafted with maleic anhydride and the non-grafted maleic anhydride and low molecular weight substances. Then, by drying at 70° C. for 5 hours under reduced pressure, a maleic anhydride-modified propylene-butene copolymer (A-1, maleic anhydride modification amount 1.0% by mass, weight average molecular weight 90,000, melting point 82 °C) was obtained.
- A-1 maleic anhydride modification amount 1.0% by mass, weight average molecular weight 90,000, melting point 82 °C
- the liquid containing the resin was centrifuged to separate and purify the acid-modified polypropylene graft-polymerized with maleic anhydride and the non-grafted maleic anhydride and low-molecular-weight substances. Then, it was dried at 70° C. for 5 hours under reduced pressure to obtain a maleic anhydride-modified polypropylene. Then, 100 parts by mass of the obtained maleic anhydride-modified polypropylene and 1700 parts by mass of chloroform were placed in a 2 L glass-lined reactor and sealed. The liquid in the reactor was heated while being stirred and dispersed, and dissolved at a temperature in the reactor of 120° C. for 1 hour.
- the liquid containing the resin was centrifuged to separate and purify the acid-modified polypropylene graft-polymerized with maleic anhydride and the non-grafted maleic anhydride and low-molecular-weight substances. Then, it was dried at 70° C. under reduced pressure for 5 hours to obtain a maleic anhydride-modified polypropylene. Then, 100 parts by mass of the obtained maleic anhydride-modified polypropylene and 1700 parts by mass of chloroform were placed in a 2 L glass-lined reactor and sealed. The liquid in the reactor was heated while being stirred and dispersed, and dissolved at a temperature in the reactor of 120° C. for 1 hour.
- Production Example 4 [Production of aqueous dispersion (a1-1)] 100 parts by mass of modified polyolefin (A-1), 15 parts by mass of polyoxyethylene laurylamine having an EO addition mole number of 10 as an emulsifier, 300 parts by mass of ion-exchanged water, 20 parts by mass of tetrahydrofuran, and 60 parts by mass of toluene was placed in a flask equipped with a stirrer, heated to 100° C., and then heated and dissolved at the same temperature for 1 hour. Next, 1.5 parts by mass of N,N-dimethylethanolamine was added and stirred at the same temperature for 1 hour. Then, after gradually cooling to 40° C.
- the organic solvent was distilled off at a reduced pressure of 91 kPa.
- a cloudy maleic anhydride-modified polyolefin aqueous dispersion (a1-1) was obtained.
- the aqueous dispersion (a1-1) had a solid content concentration of 30% by mass, a viscosity at 25° C. of 90 mPa ⁇ s, a pH of 9.1, and an average particle size of 150 nm.
- Production Examples 5-10 Aqueous dispersions of Production Examples 5 to 10 shown in Table 1 were obtained in the same manner as in Production Example 4 except that the emulsifier was changed.
- Production Example 11 Aqueous dispersions of Production Examples 11 and 12 shown in Table 1 were obtained in the same manner as in Production Example 4, except that the emulsifier was changed to 20 parts by mass.
- Production example 13 An aqueous dispersion of Production Example 13 shown in Table 1 was obtained in the same manner as in Production Example 4 except that the emulsifier was changed.
- Production example 14 100 parts by mass of modified polyolefin (A-2), 15 parts by mass of polyoxyethylene laurylamine having an EO addition mole number of 10 as an emulsifier, 300 parts by mass of ion-exchanged water, 30 parts by mass of tetrahydrofuran, and 50 parts by mass of toluene was placed in a flask equipped with a stirrer, heated to 90° C., and then heated and dissolved at the same temperature for 1 hour. Next, 1.5 parts by mass of N,N-dimethylethanolamine was added and stirred at the same temperature for 1 hour. Then, after gradually cooling to 40° C. over 1 hour, the organic solvent was distilled off at a reduced pressure of 91 kPa.
- a cloudy maleic anhydride-modified chlorinated polyolefin aqueous dispersion (a2-1) was obtained.
- the aqueous dispersion (a2-1) had a solid content concentration of 30% by mass, a viscosity at 25° C. of 94 mPa ⁇ s, a pH of 9.2, and an average particle size of 142 nm.
- Production Examples 15-20 Aqueous dispersions of Production Examples 15 and 2 shown in Table 1 were obtained in the same manner as in Production Example 14, except that the emulsifiers were changed.
- Production example 21 An aqueous dispersion of Production Example 21 shown in Table 1 was obtained in the same manner as in Production Example 14, except that the emulsifier was changed to 20 parts by mass.
- Production example 22 An aqueous dispersion of Production Example 22 shown in Table 1 was obtained in the same manner as in Production Example 14 except that the emulsifier was changed.
- Production example 23 A cloudy maleic anhydride-modified polyolefin aqueous dispersion (a3-2) was obtained in the same manner as in Production Example 22, except that the emulsifier was changed to 15 parts by mass of polyoxyethylene laurylamine having an EO addition mole number of 10.
- the aqueous dispersion (a3-2) had a solid content concentration of 30% by mass, a viscosity of 24 mPa ⁇ s at 25° C., a pH of 9.2, and an average particle size of 162 nm.
- Example 1 ⁇ Pigment dispersion> 4 parts by mass of water-soluble acrylic resin, 2 parts by mass of conductive carbon black, 36 parts by mass of rutile-type titanium oxide, and 70 parts by mass of ion-exchanged water were added, stirred for 30 minutes, and then dispersed for 30 minutes with a bead mill. Thereafter, 5 parts by mass of a urethane associative thickener and 2 parts by mass of a leveling agent were added to obtain a pigment dispersion.
- the coating composition prepared above is applied to a commercially available polypropylene substrate (150 mm x 1000 mm x 3 mm, manufactured by Nippon Test Panel Co., Ltd.) with a spray gun so that the dry coating film becomes 10 ⁇ m, and dried by heating at 80 ° C. for 10 minutes.
- a spray gun so that the dry coating film becomes 10 ⁇ m, and dried by heating at 80 ° C. for 10 minutes.
- an adherend for evaluation was prepared.
- the adherend was placed vertically in an atmosphere set at an environmental temperature of 23°C and a relative humidity of 50%, and a commercially available water-based base paint (Kansai Paint Retan PG WB Eco) was dried with a spray gun to a thickness of 20 ⁇ m.
- the coating composition was spray-coated onto a polypropylene plate (manufactured by Nippon Test Panel Co., Ltd.) washed with isopropyl alcohol so as to give a dry coating thickness of 10 ⁇ m. After drying at 80° C. for 3 minutes, a 2K urethane paint (Retan PG White III manufactured by Kansai Paint Co., Ltd.) was spray-coated as a protective film to a thickness of 40 to 50 ⁇ m. After drying at 80°C for 30 minutes, it was allowed to stand in an atmosphere of 25°C and a relative humidity of 60% for 24 hours, and this was used as a test coated plate. Each test coated plate was immersed in hot water at 40°C for 10 days.
- the aqueous dispersion composition of the present invention when used as a primer for polypropylene substrates, suppresses coating defects such as sagging and shearing of the base coat that occur after preheating, and can provide a smooth and high-appearance coating film. can. For this reason, it is possible to contribute to the reduction of coating failure rate and the reduction of disposal or repair costs in water-based coating systems for plastic coatings.
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Abstract
Description
水性塗装システムにおいては、溶剤系塗装システムと比較すると平滑性が劣ることや、濡れ性の向上のために少量の有機溶剤を配合することから、優れた平滑性とタレ性、分散安定性を両立させることが課題であった。特許文献1ではベースコートに水分散性アクリル共重合体と内部非架橋型アクリル系微粒子をある範囲で含有することでタレ性、平滑性、貯蔵安定性に優れた塗膜を提供できることが記載されている。
また、特許文献2では、窒素含有型ポリオキシアルキレン誘導体を水性分散剤に添加することで、アルコールやエーテル系の存在化においても優れた水分散性、分散安定性を保つことが記載されている。
即ち、本願発明はブテン成分含有量が2~35質量%の範囲のポリオレフィンを酸変性したポリオレフィン樹脂(A)と窒素含有非イオン系乳化剤(B)と水を含有し、80℃焼付け後の塗膜の純水接触角が40°~90°であることを特徴とする水性分散体である。
前記酸変性ポリオレフィン樹脂(A)は重量平均分子量が50,000~150,000であることが好ましく、塩素化されていることが好ましい。
また、前記窒素含有非イオン系乳化剤(B)がエチレンオキサイド構造を含有し、エチレンオキサイドモル数(1分子あたりのエチレンオキサイド単位の数)が10以上30以下であることが好ましい。
また、窒素含有非イオン系乳化剤(B)がアルキル基を構造中に有し、アルキル炭素数が10以上であることが好ましい。
また、水性分散体のZ平均粒子径が80nm~250nmの範囲内であることが好ましい。前記水性分散体は塗料、自動車用塗料、プライマーまたは接着剤に利用可能である。
本発明の水性分散体は、酸変性ポリオレフィン樹脂(A)と窒素含有非イオン系乳化剤(B)と水を含有し、酸変性ポリオレフィン樹脂(A)がポリオレフィン成分中のブテン含有量2~35質量%のプロピレン-αオレフィン共重合体であることを特徴とする。
本発明で用いる酸変性ポリオレフィン樹脂(A)は、1-ブテン含有量が2~35質量%であるプロピレン-αオレフィン共重合体が酸変性されたポリオレフィンである。変性ポリオレフィン(A)は酸変性ポリオレフィンまたは酸変性塩素化ポリオレフィンであることが好ましい。
本発明で用いる酸変性ポリオレフィンの酸成分としては、α,β-不飽和カルボン酸及びその酸無水物が挙げられる。オレフィン成分中の1-ブテン含有量が2~35質量%のプロピレン-αオレフィン共重合体に、α,β-不飽和カルボン酸及びその酸無水物の少なくとも1種をグラフトすることにより得られるものが好ましい。
本発明で用いる変性ポリオレフィン(A)は限定的ではないが、塩素化されたものを用いることもできる。塩素化ポリオレフィンとしては、前記酸変性ポリオレフィンを塩素化することにより得られる酸変性塩素化ポリオレフィンが好ましい。
本願発明の水分散体の含有する乳化剤(B)は、窒素含有非イオン系乳化剤である。窒素含有非イオン系界面活性剤としては、ポリオキシエチレンラウリルアミン、ポリオキシエチレンステアリルアミン、ポリオキシエチレンヤシ油アミン、ポリオキシエチレン牛脂アミン等のポリオキシアルキレンアルキルアミン型、ポリオキシエチレンポリオキシプロピレンモノアミン等のポリオキシアルキレンアミン型、ポリオキシエチレンオレイルアミド、ポリオキシエチレンヤシ油脂肪酸アミド、ポリオキシエチレンラウリルアミド、ポリオキシエチレンステアリルアミド、ポリオキシエチレン牛脂アミド、ポリオキシエチレンヤシ油脂肪酸モノエタノールアミド、ポリオキシエチレンラウリルモノエタノールアミド等のポリオキシアルキレンアルキルアミド型等が挙げられる。これらポリオキシアルキレンアルキルアミン型としては好適な接触角を示し、ずり性と貯蔵安定性が良好であることからポリオキシエチレン牛脂アミンが好ましく、ポリオキシエチレンアルキルアミド型としては好適な接触角を示しずり性と貯蔵安定性が良好であることからポリオキシエチレンラウリルアミドが好ましくこれらを単独でまたは2種以上を併用して使用することができる。ポリオキシエチレン構造を含有することが好ましく、特にポリオキシエチレン構造を含有しポリオキシプロピレン構造を含有しないことが、好適な水接触角とし良好なずり性とする観点から好ましい。
50mlガラス製秤量瓶にサンプルの水性分散体約1gを採り、精秤した。次いでサンプルを採取した秤量瓶を120℃の熱風乾燥機で2時間乾燥させ、取り出した秤量瓶をデシケーターに入れ、室温で30分放置・冷却した。デシケーターから秤量瓶を取り出し、質量を精秤し、熱風乾燥前後の重量変化(下記式)から水性分散体固形分濃度の質量%を算出した。
水性分散体固形分濃度(質量%)=100-[(熱風乾燥前のサンプル質量)-(熱風乾燥後のサンプル質量)]/(熱風乾燥前のサンプル質量)×100
東機産業(株)製“ViscometerTV-22”(E型粘度計)を用い、0.6gのサンプルをローターNo.0.8°(=48’)×R24、レンジH、回転数5rpm、25℃の条件で測定した。
堀場製作所(株)製“pH meter F-52”を用い、25℃での値を測定した。尚、測定器の校正は富士フイルム和光純薬(株)製、フタル酸塩pH標準液(pH:4.01)、中性燐酸塩pH標準液(pH:6.86)、ホウ酸塩pH標準液(pH9.18)を用い、3点測定で実施した。
Malvern社製“ゼータサイザー Nano-ZS Model ZEN3600”を用い、動的光散乱法にて、強度分布による平均粒子径(Z平均粒子径)を測定した。水性分散体組成物の固形分を0.05g/Lの濃度に調整したサンプルを25℃で3回測定し、その平均値とした。
無水マレイン酸で酸変性した場合の酸変性量は、FT-IR(島津製作所社製、FT-IR8200PC)により求めることができる。まず無水マレイン酸を任意の濃度で溶解させて検量線溶液を作製する。検量線溶液のFT-IR測定を行い無水マレイン酸のカルボニル(C=O)結合の伸縮ピーク(1780cm-1)の吸光度より検量線を作成する。変性ポリオレフィン(A)をクロロホルムに溶解させてFT-IR測定を行い、前記検量線をもとに無水マレイン酸のカルボニル結合の伸縮ピーク(1780cm-1)の吸光度より無水マレイン酸の酸変性量を求める。
本発明における融点、融解熱量は示差走査熱量計(以下、DSC、ティー・エー・インスツルメント・ジャパン製、Q-2000)を用いて、10℃/分の速度で昇温融解、冷却樹脂化して、再度昇温融解した際の融解ピークのトップ温度から測定した値である。
樹脂のガラス転移温度(Tg)(℃)はDSCにより融点の測定と同様の条件にて、再度昇温過程での各ベースラインの延長した直線から縦軸方向に等距離にある直線と、ガラス転移の階段状変化部分の曲線とが交わる点の温度とした。
1Lオートクレーブに、ポリオレフィンとしてプロピレン/ブテン=75/25質量%のプロピレン-ブテン共重合体 100質量部、トルエン300質量部及び無水マレイン酸10質量部を入れ、130℃まで昇温した後、ジ-tert-ブチルパーオキサイド8質量部を加え、1時間撹拌した。その後、得られた反応液を冷却後、多量のメチルエチルケトンが入った容器に注ぎ、樹脂を析出させた。その後、当該樹脂を含有する液を遠心分離することにより、無水マレイン酸がグラフト重合した酸変性プロピレン-ブテン共重合体とグラフトしていない無水マレイン酸および低分子量物とを分離、精製した。その後、減圧下70℃で5時間乾燥させることにより、無水マレイン酸変性プロピレン-ブテン共重合体(A-1、無水マレイン酸の変性量1.0質量%、重量平均分子量90,000、融点82℃)を得た。
1Lオートクレーブに、ポリオレフィンとしてプロピレン/ブテン/エチレン=94/3/3質量%のプロピレン‐ブテン‐エチレン3元共重合体100質量部、トルエン300質量部及び無水マレイン酸10質量部を入れ、130℃まで昇温した後、ジ-tert-ブチルパーオキサイド8質量部を加え、1時間撹拌した。その後、得られた反応液を冷却後、多量のメチルエチルケトンが入った容器に注ぎ、樹脂を析出させた。その後、当該樹脂を含有する液を遠心分離することにより、無水マレイン酸がグラフト重合した酸変性ポリプロピレンとグラフトしていない無水マレイン酸および低分子量物とを分離、精製した。
その後、減圧下70℃で5時間乾燥させることにより、無水マレイン酸変性ポリプロピレンを得た。次いで、2Lのグラスライニング製反応缶に、得られた無水マレイン酸変性ポリプロピレンを100質量部、クロロホルムを1700質量部を入れ密閉にした。反応缶内の液を撹拌して分散しながら加温し、缶内温度120℃で1時間溶解した。缶内温度を110℃まで冷却した後に、t-ブチルパーオキシ-2-エチルヘキサノエートを0.5質量部添加し、塩素を70質量部導入した。缶内温度を60℃まで冷却し、クロロホルム1400質量部を留去した後に、安定剤としてp-t-ブチルフェニルグリシジルエーテルを4質量部添加した。その後、乾燥することにより、無水マレイン酸変性塩素化ポリプロピレン(A-2、無水マレイン酸の変性量1.0質量%、塩素含有量17質量%、重量平均分子量110,000、融点85℃)を得た。
1Lオートクレーブに、ポリオレフィンとしてプロピレンホモポリマー100質量部、トルエン300質量部及び無水マレイン酸10質量部を入れ、130℃まで昇温した後、ジ-tert-ブチルパーオキサイド8質量部を加え、1時間撹拌した。その後、得られた反応液を冷却後、多量のメチルエチルケトンが入った容器に注ぎ、樹脂を析出させた。その後、当該樹脂を含有する液を遠心分離することにより、無水マレイン酸がグラフト重合した酸変性ポリプロピレンとグラフトしていない無水マレイン酸および低分子量物とを分離、精製した。その後、減圧下70℃で5時間乾燥させることにより、無水マレイン酸変性ポリプロピレンを得た。次いで、2Lのグラスライニング製反応缶に、得られた無水マレイン酸変性ポリプロピレンを100質量部、クロロホルムを1700質量部入れ密閉した。反応缶内の液を撹拌して分散しながら加温し、缶内温度120℃で1時間溶解した。缶内温度を110℃まで冷却した後に、t-ブチルパーオキシ-2-エチルヘキサノエートを0.5質量部添加し、塩素を70質量部導入した。缶内温度を60℃まで冷却し、クロロホルム1400質量部を留去した後に、安定剤としてp-t-ブチルフェニルグリシジルエーテルを4質量部添加した。その後、乾燥することにより、無水マレイン酸変性塩素化ポリプロピレン(A-3、無水マレイン酸の変性量1.0質量%、塩素含有量20質量%、重量平均分子量90,000、融点80℃)を得た。
変性ポリオレフィン(A-1)を100質量部、乳化剤としてEO付加モル数が10のポリオキシエチレンラウリルアミンを15質量部、イオン交換水を300質量部、テトラヒドロフランを20質量部、およびトルエン60質量部を撹拌機付きフラスコに入れ、100℃に昇温した後、同温度で1時間、加熱溶解した。次に、N,N-ジメチルエタノールアミン1.5質量部を添加し、同温度で1時間攪拌した。その後、1時間かけて徐々に40℃まで冷却した後、91kPaの減圧度で有機溶剤を留去した。白濁した無水マレイン酸変性ポリオレフィン水分散体(a1-1)を得た。水性分散体(a1-1)の固形分濃度は30質量%、25℃での粘度は90mPa・s、pHは9.1、平均粒子径は150nmであった。
乳化剤をそれぞれ変更した以外は製造例4と同様にして、表1記載の製造例5~10の水性分散体を得た。
乳化剤をそれぞれ変更し乳化剤の添加量を20質量部とした以外は製造例4と同様にして、表1記載の製造例11、12の水性分散体を得た。
乳化剤を変更した以外は製造例4と同様にして、表1記載の製造例13の水性分散体を得た。
変性ポリオレフィン(A-2)を100質量部、乳化剤としてEO付加モル数が10のポリオキシエチレンラウリルアミンを15質量部、イオン交換水を300質量部、テトラヒドロフランを30質量部、およびトルエン50質量部を撹拌機付きフラスコに入れ、90℃に昇温した後、同温度で1時間、加熱溶解した。次に、N,N-ジメチルエタノールアミン1.5質量部を添加し、同温度で1時間攪拌した。その後、1時間かけて徐々に40℃まで冷却した後、91kPaの減圧度で有機溶剤を留去した。白濁した無水マレイン酸変性塩素化ポリオレフィン水分散体(a2-1)を得た。水性分散体(a2-1)の固形分濃度は30質量%、25℃での粘度は94mPa・s、pHは9.2、平均粒子径は142nmであった。
乳化剤をそれぞれ変更した以外は製造例14と同様にして、表1記載の製造例15~2の水性分散体を得た。
乳化剤を変更し乳化剤の添加量を20質量部とした以外は製造例14と同様にして、表1記載の製造例21の水性分散体を得た。
乳化剤を変更した以外は製造例14と同様にして表1記載の製造例22の水性分散体を得た。
乳化剤をEO付加モル数が10のポリオキシエチレンラウリルアミン15質量部に変更した以外は製造例22と同様にし、白濁した無水マレイン酸変性ポリオレフィン水分散体(a3-2)を得た。水性分散体(a3-2)の固形分濃度は30質量%、25℃での粘度は24mPa・s、pHは9.2、平均粒子径は162nmであった。
上記製造例4~23で得られた水性分散体それぞれ100重量部に対して水を50重量部、アルカリ膨潤型増粘剤(ロームアンドハース製 ASE-60)2重量部を攪拌しながら加え水分散体組成物を得た。これを市販のポリプロピレン基材(日本テストパネル社製、100mm×100mm×3mm)にスプレーガンにて乾燥塗膜が10μmになるように塗布し、80℃×10分間加熱乾燥することにより評価用の試験片を得た。この試験片を、20℃で10分間(湿度50%)放置冷却後、ただちに接触角計(協和界面科学社製CX-150)を用いて内径0.1mmマイクロシリンジから約1μlの純水を滴下し、1分後の接触角を測定した。
<顔料分散液>
水溶性アクリル樹脂4質量部、導電性カーボンブラック2質量部、ルチル型酸化チタン36質量部、イオン交換水を70質量部加え30分撹拌した後、ビーズミルにて30分分散を行った。その後、ウレタン会合型増粘剤を5質量部、レベリング剤2質量部を加え顔料分散液を得た。
製造例4で得られた水性分散体14重量部に上記顔料分散液を38質量部、ポリエステルポリウレタンディスパージョン(三洋化成製 UXA-310 固形分38%)21質量部加えてディスパー撹拌機で10分攪拌した。次いでレベリング剤としてBYK-349を1.0質量部、アルカリ膨潤型増粘剤(ロームアンドハース製 ASE-60)2重量部を滴下し15分攪拌し塗料組成物を得た。塗料組成物について、以下の評価を行った。結果を表2及び表3に示す。
市販のポリプロピレン基材(日本テストパネル社製、150mm×1000mm×3mm)に上記作製した塗料組成物をスプレーガンにて乾燥塗膜が10μmになるように塗布し、80℃×10分間加熱乾燥することにより、評価用の被着体を作成した。次に、環境温度23℃で相対湿度50%に設定した雰囲気中に被着体を垂直に設置し、市販の水性ベース塗料(関西ペイント製レタンPG WBエコ)をスプレーガンにて乾燥塗膜20μmになるように塗布した。その後、該試験体を同環境下で塗装後1分間放置した後、40℃の乾燥炉に垂直に設置した状態で5分間放置した。その後、80℃の乾燥炉に垂直に設置した状態で15分間放置した後、試験片を取り出し、得られた塗膜のずり落ちを目視確認および膜厚測定により次のように評価した。
評価基準
◎: プライマーの露出なく、塗膜のシワも寄っていない状態
△: プライマーの露出はないが、塗膜がずれてシワが寄っている状態
×: ベースコートがずり落ち、プライマーが露出してしまっている
市販のポリプロピレン基材(日本テストパネル社製、150mm×1000mm×3mm)に上記塗料組成物をスプレーガンにて乾燥塗膜が10μmになるように塗布し、80℃×10分間加熱乾燥することにより、評価用の被着体を作成した。次に、環境温度23℃で相対湿度50%に設定した雰囲気中に被着体を垂直に設置し、市販の水性ベース塗料(関西ペイント製レタンPGWBエコ)をスプレーガンにて乾燥塗膜20μmになるように塗布した。その後、該試験体を同環境下で塗装後1分間放置した後、40℃の乾燥炉に垂直に設置した状態で5分間放置した。その後、80℃の乾燥炉に垂直に設置した状態で15分間放置した後、試験片を取り出し、得られた試験片の塗膜外観を目視観察により次のように評価した。
評価基準
◎ : 全体が均一で平滑である
〇 : ごく僅かなゆず肌が見られるが、全体としてほぼ均一である
△ : 一部にゆず肌が見られる
× : 目立ったへこみが見られる
イソプロピルアルコールで洗浄したポリプロピレン板(日本テストパネル社製)に、乾燥塗膜厚が10μmとなるように、上記塗料組成物をスプレー塗装した。80℃で3分乾燥後、保護膜として2Kウレタン塗料(関西ペイント社製レタンPGホワイトIII)を40~50μmとなるようにスプレー塗装した。80℃×30分乾燥後、25℃×相対湿度60%の雰囲気下に24時間放置し、これを試験塗板とした。
各試験塗板を40℃の温水に10日間浸漬させた。浸漬後、塗膜表面の外観を確認し、上記密着性評価を実施した。結果を表2に示す。密着性の評価は下記の通り実施した。
評価基準
◎:外観にブリスター等の異状なく、密着性評価が10点
○:外観にブリスター等の異状なく、密着性評価が4~9点
△:外観にブリスター等の異状なく、密着性評価が1~3点
×:外観にブリスターが発生または密着性評価が0点
上記試験塗板に2mm幅で10×10の碁盤目状に鋭利なカッターで切れ目を入れ、碁盤目状の部分にセロハンテープ(ニチバン製)を貼り付け、60°の角度で急激に引き剥がす操作を10回繰り返した。10回繰り返しても塗装面に変化がなかった場合を10点とし、10回目で剥がれが生じた場合は9点、以下8、7、6点となり1回目で剥がれが生じた場合を0点とした。
上記作製した塗料組成物200gをポリプロピレン製容器に密閉し、40℃×10日静置保管した。その後、回転粘度計(東機産業製TVB-10M)で保管後の粘度を測定。保存前の粘度との変化率を測定した。
評価基準
◎:保存前と保存後の粘度変化率が5%未満
○:保存前と保存後の粘度変化率が5%以上10%未満
△:保存前と保存後の粘度変化率が11%以上20%未満
×:保存前と保存後の粘度変化率が20%以上
Claims (10)
- 酸変性ポリオレフィン樹脂(A)と窒素含有非イオン系乳化剤(B)と水を含有し、酸変性ポリオレフィン樹脂(A)がポリオレフィン成分中のブテン含有量2~35質量%のプロピレン-αオレフィン共重合体であり、かつ80℃焼付け後の塗膜の純水接触角が40°~90°であることを特徴とする水性分散体。
- 前記酸変性ポリオレフィン樹脂(A)の重量平均分子量が50,000~150,000であることを特徴とする請求項1に記載の水性分散体。
- 前記酸変性ポリオレフィン樹脂(A)が塩素化されている請求項1または2に記載の水性分散体。
- 前記窒素含有非イオン系乳化剤(B)がポリオキシエチレン構造を含有し、エチレンオキサイドモル数(1分子あたりのエチレンオキサイド単位の数)が10以上30以下であることを特徴とする請求項1~3のいずれかに記載の水性分散体。
- 前記窒素含有非イオン系乳化剤(B) がアルキル基を構造中に有し、アルキル炭素数が10以上であることを特徴とする請求項1~4のいずれかに記載の水性分散体。
- 水性分散体のZ平均粒子径が80nm~250nmの範囲内であることを特徴とする請求項1~5のいずれかに記載の水性分散体。
- 請求項1~6のいずれかに記載の水性分散体を含有する塗料。
- 請求項1~6のいずれかに記載の水性分散体を含有する接着剤。
- 請求項1~6のいずれかに記載の水性分散体から水性媒体を除去した塗膜。
- 請求項7または8の塗料又は接着剤に由来する層を有する積層体。
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EP22763347.6A EP4303264A1 (en) | 2021-03-04 | 2022-03-02 | Aqueous dispersion |
JP2023503924A JPWO2022186294A1 (ja) | 2021-03-04 | 2022-03-02 | |
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JPH06256592A (ja) * | 1993-03-02 | 1994-09-13 | Nippon Paper Ind Co Ltd | 水性ポリオレフィン樹脂組成物 |
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- 2022-03-02 US US18/279,662 patent/US20240228761A9/en active Pending
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JPH06256592A (ja) * | 1993-03-02 | 1994-09-13 | Nippon Paper Ind Co Ltd | 水性ポリオレフィン樹脂組成物 |
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Title |
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KYOWA: "CX-150", INTERFACE SCIENCE CO., LTD |
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EP4303264A1 (en) | 2024-01-10 |
TW202244169A (zh) | 2022-11-16 |
JPWO2022186294A1 (ja) | 2022-09-09 |
US20240228761A9 (en) | 2024-07-11 |
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