JP5943485B2 - シリコーンエラストマー粒子および該シリコーンエラストマー粒子を含む水分散液 - Google Patents
シリコーンエラストマー粒子および該シリコーンエラストマー粒子を含む水分散液 Download PDFInfo
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- JP5943485B2 JP5943485B2 JP2013099556A JP2013099556A JP5943485B2 JP 5943485 B2 JP5943485 B2 JP 5943485B2 JP 2013099556 A JP2013099556 A JP 2013099556A JP 2013099556 A JP2013099556 A JP 2013099556A JP 5943485 B2 JP5943485 B2 JP 5943485B2
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- silicone elastomer
- elastomer particles
- antioxidant
- water
- aqueous dispersion
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- 239000002245 particle Substances 0.000 title claims description 166
- 229920002379 silicone rubber Polymers 0.000 title claims description 131
- 239000006185 dispersion Substances 0.000 title claims description 79
- -1 pt-butylphenol Chemical compound 0.000 claims description 90
- 229920001296 polysiloxane Polymers 0.000 claims description 55
- 239000003963 antioxidant agent Substances 0.000 claims description 49
- 230000003078 antioxidant effect Effects 0.000 claims description 49
- 239000002736 nonionic surfactant Substances 0.000 claims description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 29
- 239000003054 catalyst Substances 0.000 claims description 22
- 239000002537 cosmetic Substances 0.000 claims description 22
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 19
- 230000003647 oxidation Effects 0.000 claims description 18
- 238000007254 oxidation reaction Methods 0.000 claims description 18
- 239000000839 emulsion Substances 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 16
- 125000001931 aliphatic group Chemical group 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
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- 239000011732 tocopherol Substances 0.000 claims description 15
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 claims description 14
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- 229960001295 tocopherol Drugs 0.000 claims description 14
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 claims description 14
- 125000000962 organic group Chemical group 0.000 claims description 12
- 238000007259 addition reaction Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- SPSPIUSUWPLVKD-UHFFFAOYSA-N 2,3-dibutyl-6-methylphenol Chemical compound CCCCC1=CC=C(C)C(O)=C1CCCC SPSPIUSUWPLVKD-UHFFFAOYSA-N 0.000 claims description 2
- 239000004258 Ethoxyquin Substances 0.000 claims description 2
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 claims description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 2
- 235000019285 ethoxyquin Nutrition 0.000 claims description 2
- DECIPOUIJURFOJ-UHFFFAOYSA-N ethoxyquin Chemical compound N1C(C)(C)C=C(C)C2=CC(OCC)=CC=C21 DECIPOUIJURFOJ-UHFFFAOYSA-N 0.000 claims description 2
- 229940093500 ethoxyquin Drugs 0.000 claims description 2
- 235000006708 antioxidants Nutrition 0.000 description 39
- 229920000642 polymer Polymers 0.000 description 16
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 14
- 235000014113 dietary fatty acids Nutrition 0.000 description 13
- 239000000194 fatty acid Substances 0.000 description 13
- 229930195729 fatty acid Natural products 0.000 description 13
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 10
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 10
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- 230000000052 comparative effect Effects 0.000 description 8
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- 125000004432 carbon atom Chemical group C* 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
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- 230000003287 optical effect Effects 0.000 description 6
- GTJOHISYCKPIMT-UHFFFAOYSA-N 2-methylundecane Chemical compound CCCCCCCCCC(C)C GTJOHISYCKPIMT-UHFFFAOYSA-N 0.000 description 5
- SGVYKUFIHHTIFL-UHFFFAOYSA-N Isobutylhexyl Natural products CCCCCCCC(C)C SGVYKUFIHHTIFL-UHFFFAOYSA-N 0.000 description 5
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- 239000011668 ascorbic acid Substances 0.000 description 5
- 238000001723 curing Methods 0.000 description 5
- 150000002430 hydrocarbons Chemical group 0.000 description 5
- VKPSKYDESGTTFR-UHFFFAOYSA-N isododecane Natural products CC(C)(C)CC(C)CC(C)(C)C VKPSKYDESGTTFR-UHFFFAOYSA-N 0.000 description 5
- 230000009965 odorless effect Effects 0.000 description 5
- 229920000570 polyether Polymers 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 5
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical class CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
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- 150000003839 salts Chemical class 0.000 description 4
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- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 229920006322 acrylamide copolymer Polymers 0.000 description 3
- 125000000129 anionic group Chemical group 0.000 description 3
- 239000003242 anti bacterial agent Substances 0.000 description 3
- 239000004359 castor oil Substances 0.000 description 3
- 235000019438 castor oil Nutrition 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 3
- 238000006459 hydrosilylation reaction Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229940047670 sodium acrylate Drugs 0.000 description 3
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 3
- 235000010234 sodium benzoate Nutrition 0.000 description 3
- 239000004299 sodium benzoate Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 2
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 2
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 125000005907 alkyl ester group Chemical group 0.000 description 2
- 150000005215 alkyl ethers Chemical class 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
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- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 125000001204 arachidyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 125000002511 behenyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
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- 238000005119 centrifugation Methods 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 229940008099 dimethicone Drugs 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 125000003700 epoxy group Chemical group 0.000 description 2
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 2
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- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
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- 150000004665 fatty acids Chemical class 0.000 description 2
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- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 125000000755 henicosyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 125000002960 margaryl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- 125000001802 myricyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 description 2
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- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- QBERHIJABFXGRZ-UHFFFAOYSA-M rhodium;triphenylphosphane;chloride Chemical compound [Cl-].[Rh].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 QBERHIJABFXGRZ-UHFFFAOYSA-M 0.000 description 2
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- C08G77/48—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
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- A61K8/4906—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom
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- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
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Description
本発明においてシリコーンエラストマー粒子の形状は特に限定されないが、球状が好ましい。ここで「球状」とは、粒子の形状が、真球であるだけでなく、最長軸の長さ/最短軸の長さ(アスペクト比)が平均して、通常、1〜4、好ましくは1〜2、より好ましくは1〜1.6であり、更には、1〜1.4の範囲にある変形した球であってもよいことを意味する。後記のように、液状シリコーンを界面活性剤を用いて水に乳化分散させた後架橋する方法によって製造する場合、得られる粒子の形状は球状となる。該シリコーンエラストマー粒子の形状は、水分散液の場合は粒子の粒径がおよそ1μm以上であれば光学顕微鏡にて観察することにより確認することができる。また、水を除去すれば、1μm以下の粒径であっても、電子顕微鏡にて観察することにより形状を確認することができる。
本発明はさらに、上記シリコーンエラストマー粒子、ノニオン性界面活性剤、及び水を含有する水分散液を提供する。本発明のノニオン性界面活性剤は、水分散液におけるシリコーンエラストマー粒子の分散剤として機能する一方、液状シリコーンの乳化剤としても機能する。
本発明はさらに、シリコーンエラストマー粒子及び水分散液の製造方法を提供する。本発明において、酸化防止剤をシリコーンエラストマー粒子中に包含させる方法としては、例えば、液状シリコーンに予め液状シリコーンに可溶である酸化防止剤を分散または溶解させておき、その後硬化させることにより酸化防止剤を含有したシリコーンエラストマー粒子とする方法が挙げられる。または、液状シリコーンのエマルジョン中に酸化防止剤を添加した後、エマルジョンを攪拌して液状シリコーンに酸化防止剤を溶解し、その後液状シリコーンを硬化して酸化防止剤を含有したシリコーンエラストマー粒子とする方法が挙げられる。当該方法で使用する酸化防止剤は液状シリコーンに可溶であり且つ非水溶性である必要がある。または、シリコーンエラストマー粒子の水分散液中に酸化防止剤を添加した後、該水分散液を攪拌することで、シリコーンエラストマー粒子中に酸化防止剤を含浸させる方法が挙げられる。当該方法においても使用する酸化防止剤は液状シリコーンに可溶であり且つ非水溶性である必要がある。非水溶性の酸化防止剤を使用することにより、水分散液の水中やシリコーンエラストマー粒子の表面に酸化防止剤が残ることはほとんどなく、配合した酸化防止剤のほぼ全量をシリコーンエラストマー粒子中に取り込むことができる。尚、水分散液の水中やシリコーンエラストマー粒子の表面に酸化防止剤が残っていたとしても、そのまま化粧料に配合することができる。酸化防止剤は溶媒に溶解して添加してもよく、また、水に対する分散性が悪い場合には、界面活性剤に溶解した状態でエマルジョンに添加してもよい。特には、本発明の酸化防止剤を予め液状シリコーン混合物に分散または溶解させておく方法が簡便で好ましい。
シリコーンエラストマー粒子の水分散液
(i)下記式(1)で示される、動粘度が130mm2/sのメチルビニルポリシロキサン457g、
下記式(2)で示される、動粘度が30mm2/sのメチルハイドロジェンポリシロキサン43g(上記式(1)で示される化合物中のオレフィン性不飽和基1個に対しヒドロシリル基が1.17個となる量)、
およびトコフェロール0.10gを容量1リットルのガラスビーカーに仕込み、ホモミキサーを用いて2,000rpmで撹拌溶解させた。
シリコーンエラストマー粒子
(i)下記式(3)で示される、動粘度が600mm2/sのメチルビニルポリシロキサン500g、
上記式(2)で示される、動粘度が30mm2/sのメチルハイドロジェンポリシロキサン2g(上記式(3)で示される化合物中のオレフィン性不飽和基1個に対しヒドロシリル基が1.13個となる配合量)、およびトコフェロール0.10gを容量1リットルのガラスビーカーに仕込み、ホモミキサーを用いて2,000rpmで撹拌溶解させた。
上記式(3)で示されるメチルビニルポリシロキサン、上記式(2)で示されるメチルハイドロジェンポリシロキサン、トコフェロール、および塩化白金酸−オレフィン錯体のイソドデカン溶液(白金含有量0.5%)を上記の配合割合で混合し、厚みが10mmになるようアルミシャーレに流し込んだ。25℃で24時間放置後、50℃の恒温槽内で1時間加熱し、トコフェロールを含有したシリコーンエラストマーを得た。シリコーンエラストマーのゴム硬度を、デュロメータA硬度計で測定したところ、28であった。
ファンデーション
実施例1で得られた水分散液及び下記に示す成分を下記に示す量で配合してファンデーションを調製した。
(成分) 重量(g)
1.デカメチルシクロペンタシロキサン 225.0
2.ジメチルポリシロキサン(粘度:6mm2/s) 75.0
3.ポリエーテル変性シリコーン(注1) 17.5
4.オクタデシルジメチルベンジルアンモニウム塩変性モンモリロナイト 7.5
5.アミノ酸(N−アシルグルタミン酸)処理酸化鉄 12.5
6.トリエトキシシリルエチルポリジメチルシロキシエチルヘキシルジメチコン(注2)処理酸化チタン 37.5
7.実施例1で得られた水分散液 45.0
8.ジプロピレングリコール 25.0
9.パラオキシ安息香酸メチルエステル 1.5
10.水 53.5
(注1)ポリエーテル変性シリコーン:KF−6017(信越化学工業(株)製)
(注2)トリエトキシシリルエチルポリジメチルシロキシエチルヘキシルジメチコン:KF−9909(信越化学工業(株)製)
先ず、上記成分1〜4を混合し、さらに該混合物に成分5〜6を添加して均一に混合した。別の容器に成分7〜11を投入し混合した。上記成分1〜6の混合物に、ホモミキサー攪拌下、上記成分7〜11の混合物を添加し乳化して、ファンデーションを得た。
上記で得られたファンデーションを500mLのポリ瓶に移し、1日後に官能により臭いの有無を確認したところ、無臭であった。
トコフェロールを配合しない他は、実施例1と同様にしてシリコーンエラストマー粒子を含む水分散液を調製した。得られた水分散液中のシリコーンエラストマー粒子の形状を光学顕微鏡にて観察したところ、球状であった。また、該シリコーンエラストマー粒子の体積平均粒径を電気抵抗法粒度分布測定装置「マルチサイザー3」(ベックマン・コールター(株)製)を用いて測定したところ、3μmであった。
トコフェロールを配合しない他は、実施例2と同様にしてシリコーンエラストマー粒子を含む水分散液を得た。得られた水分散液中のシリコーンエラストマー粒子の形状を光学顕微鏡にて観察したところ、球状であった。また、該シリコーンエラストマー粒子の体積平均粒径を電気抵抗法粒度分布測定装置「マルチサイザー3」(ベックマン・コールター(株)製)を用いて測定したところ、12μmであった。
ファンデーション
実施例1で得られた水分散液の代わりに比較例1で得られた水分散液を使用した他は、実施例3と同様にしてファンデーションを調製した。得られたファンデーションを500mLのポリ瓶に移し、1日後に官能により臭いの有無を確認したところ、臭気が認められた。
ファンデーション
上記式(1)で示される、動粘度が130mm2/sのメチルビニルポリシロキサン457g、および上記式(2)で示される、動粘度が30mm2/sのメチルハイドロジェンポリシロキサン43g(上記式(1)で示される化合物中のオレフィン性不飽和基1個に対しヒドロシリル基が1.17個となる配合量)を容量1リットルのガラスビーカーに仕込み、ホモミキサーを用いて2,000rpmで撹拌溶解させた。次いで、ポリオキシエチレンラウリルエーテル(エチレンオキサイド付加モル数=9モル)6gと水40gを加え、ホモミキサーを用いて8,000rpmで撹拌したところ、水中油滴型となり、増粘が認められ、更に、15分間撹拌を継続した。次いで、2,000rpmで撹拌しながら、水497gを加えたところ、均一な白色エマルジョンが得られた。このエマルジョンを錨型攪拌翼による撹拌装置の付いた容量1リットルのガラスフラスコに移し、15〜20℃に温調した後、撹拌下に塩化白金酸−オレフィン錯体のイソドデカン溶液(白金含有量0.5%)0.8gとポリオキシエチレンラウリルエーテル(エチレンオキサイド付加モル数=9モル)1gの混合溶解物を添加し、同温度で12時間撹拌した。
Claims (13)
- ケイ素原子に結合した一価脂肪族不飽和基とケイ素原子に結合した水素原子との付加反応によって形成された架橋構造を有するシリコーンエラストマー粒子であって、前記粒子中に酸化防止剤を含有すること、および前記粒子の表面あるいは中にノニオン性界面活性剤を有することを特徴とするシリコーンエラストマー粒子。
- 酸化防止剤が液状シリコーンに可溶である、請求項1に記載のシリコーンエラストマー粒子。
- 酸化防止剤が非水溶性である、請求項2に記載のシリコーンエラストマー粒子。
- 酸化防止剤が、トコフェロール、p−t−ブチルフェノール、ブチルヒドロキシアニソール、ジブチルヒドロキシトルエン、テトラジブチルヒドロキシヒドロケイヒ酸ペンタエリスリチル、及びエトキシキンから選択される1以上である、請求項3記載のシリコーンエラストマー粒子。
- ノニオン性界面活性剤が前記シリコーンエラストマー粒子の表面に付着している、請求項1〜4のいずれか1項記載のシリコーンエラストマー粒子。
- 請求項1〜5のいずれか1項に記載のシリコーンエラストマー粒子、ノニオン性界面活性剤、及び水を含有する水分散液。
- 酸化防止剤の量がノニオン性界面活性剤の酸化を抑制できる有効量である、請求項5記載のシリコーンエラストマー粒子。
- 酸化防止剤の量がノニオン性界面活性剤の酸化を抑制できる有効量である、請求項6記載の水分散液。
- 請求項1〜5または7のいずれか1項に記載のシリコーンエラストマー粒子、または請求項6または8に記載の水分散液を含有する化粧料。
- 一分子中にケイ素原子に結合した一価脂肪族不飽和基を少なくとも2個有するオルガノ(ポリ)シロキサンと、一分子中にケイ素原子に結合した水素原子を少なくとも2個有するオルガノハイドロジェン(ポリ)シロキサンとからなる(但し、一価脂肪族不飽和基と水素原子の少なくとも一方は、前記分子中に少なくとも3個存在する)液状シリコーン混合物に酸化防止剤を溶解し、次いで水とノニオン性界面活性剤とを添加し撹拌してエマルジョンとした後、白金族金属系触媒存在下で前記液状シリコーン混合物を硬化してシリコーンエラストマー粒子を得る工程を含む、請求項6または8に記載の水分散液の製造方法。
- 一分子中にケイ素原子に結合した一価脂肪族不飽和基を少なくとも2個有するオルガノ(ポリ)シロキサンと、一分子中にケイ素原子に結合した水素原子を少なくとも2個有するオルガノハイドロジェン(ポリ)シロキサンとからなる(但し、一価脂肪族不飽和基と水素原子の少なくとも一方は、前記分子中に少なくとも3個存在する)液状シリコーン混合物と、水と、ノニオン性界面活性剤とを撹拌してエマルジョンとし、該エマルジョンに上記混合物に可溶であり且つ非水溶性である酸化防止剤を添加し撹拌した後、白金族金属系触媒存在下で前記液状シリコーン混合物を硬化してシリコーンエラストマー粒子を得る工程を含む、請求項6または8に記載の水分散液の製造方法。
- ケイ素原子に結合した一価脂肪族不飽和基とケイ素原子に結合した水素原子との付加反応によって形成された架橋構造を有するシリコーンエラストマー粒子と、ノニオン性界面活性剤と、水とを含む水分散液に、液状シリコーンに可溶であり且つ非水溶性である酸化防止剤を添加し撹拌して前記酸化防止剤をシリコーンエラストマー粒子中に含浸させる工程を含む、請求項6または8に記載の水分散液の製造方法。
- 請求項10〜12のいずれか1項記載の製造方法により得られた水分散液から水を除去することにより請求項1〜5または7のいずれか1項記載のシリコーンエラストマー粒子を製造する方法。
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US14/263,462 US9421156B2 (en) | 2013-05-09 | 2014-04-28 | Silicone elastomer particle and an aqueous dispersion comprising the same |
KR1020140053369A KR102230572B1 (ko) | 2013-05-09 | 2014-05-02 | 실리콘 엘라스토머 입자 및 상기 실리콘 엘라스토머 입자를 포함하는 수분산액 |
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CN201410192740.XA CN104140684B (zh) | 2013-05-09 | 2014-05-08 | 硅酮弹性体粒子、含有该硅酮弹性体粒子的水分散液及其制造方法、以及化妆料 |
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WO2019189394A1 (ja) | 2018-03-27 | 2019-10-03 | ダウ・東レ株式会社 | 油剤含有シリコーンエラストマー粒子および化粧料組成物その他の用途 |
JP7258420B2 (ja) * | 2019-01-18 | 2023-04-17 | 株式会社ディスコ | レーザーダイシング用保護膜剤、レーザーダイシング用保護膜剤の製造方法及びレーザーダイシング用保護膜剤を用いた被加工物の加工方法 |
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US20150342849A1 (en) | 2015-12-03 |
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US9421156B2 (en) | 2016-08-23 |
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