JP7219698B2 - 親水性シリコーン粒子の製造方法 - Google Patents
親水性シリコーン粒子の製造方法 Download PDFInfo
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- JP7219698B2 JP7219698B2 JP2019220594A JP2019220594A JP7219698B2 JP 7219698 B2 JP7219698 B2 JP 7219698B2 JP 2019220594 A JP2019220594 A JP 2019220594A JP 2019220594 A JP2019220594 A JP 2019220594A JP 7219698 B2 JP7219698 B2 JP 7219698B2
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- Prior art keywords
- silicone particles
- surfactant
- component
- water
- hydrophilic silicone
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- 239000002245 particle Substances 0.000 title claims description 138
- 229920001296 polysiloxane Polymers 0.000 title claims description 134
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 69
- 239000004094 surface-active agent Substances 0.000 claims description 50
- 239000000839 emulsion Substances 0.000 claims description 24
- 238000010526 radical polymerization reaction Methods 0.000 claims description 24
- 239000002736 nonionic surfactant Substances 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 2
- 239000006185 dispersion Substances 0.000 description 24
- 238000003756 stirring Methods 0.000 description 24
- 239000002537 cosmetic Substances 0.000 description 17
- -1 methacryloyl groups Chemical group 0.000 description 16
- 239000007864 aqueous solution Substances 0.000 description 15
- 239000011521 glass Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 10
- 229910052938 sodium sulfate Inorganic materials 0.000 description 10
- 235000011152 sodium sulphate Nutrition 0.000 description 10
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 238000005406 washing Methods 0.000 description 7
- 230000001588 bifunctional effect Effects 0.000 description 6
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- 230000001804 emulsifying effect Effects 0.000 description 6
- 150000002430 hydrocarbons Chemical group 0.000 description 6
- 125000005395 methacrylic acid group Chemical group 0.000 description 6
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 5
- 238000005481 NMR spectroscopy Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 4
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 229920002379 silicone rubber Polymers 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000002612 dispersion medium Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000007720 emulsion polymerization reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 3
- 239000012966 redox initiator Substances 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- PIZHFBODNLEQBL-UHFFFAOYSA-N 2,2-diethoxy-1-phenylethanone Chemical compound CCOC(OCC)C(=O)C1=CC=CC=C1 PIZHFBODNLEQBL-UHFFFAOYSA-N 0.000 description 2
- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 2
- UHFFVFAKEGKNAQ-UHFFFAOYSA-N 2-benzyl-2-(dimethylamino)-1-(4-morpholin-4-ylphenyl)butan-1-one Chemical compound C=1C=C(N2CCOCC2)C=CC=1C(=O)C(CC)(N(C)C)CC1=CC=CC=C1 UHFFVFAKEGKNAQ-UHFFFAOYSA-N 0.000 description 2
- PCKZAVNWRLEHIP-UHFFFAOYSA-N 2-hydroxy-1-[4-[[4-(2-hydroxy-2-methylpropanoyl)phenyl]methyl]phenyl]-2-methylpropan-1-one Chemical compound C1=CC(C(=O)C(C)(O)C)=CC=C1CC1=CC=C(C(=O)C(C)(C)O)C=C1 PCKZAVNWRLEHIP-UHFFFAOYSA-N 0.000 description 2
- LWRBVKNFOYUCNP-UHFFFAOYSA-N 2-methyl-1-(4-methylsulfanylphenyl)-2-morpholin-4-ylpropan-1-one Chemical compound C1=CC(SC)=CC=C1C(=O)C(C)(C)N1CCOCC1 LWRBVKNFOYUCNP-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 2
- GUCYFKSBFREPBC-UHFFFAOYSA-N [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=C(C)C=C(C)C=C1C GUCYFKSBFREPBC-UHFFFAOYSA-N 0.000 description 2
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 230000001166 anti-perspirative effect Effects 0.000 description 2
- 239000003213 antiperspirant Substances 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000005504 styryl group Chemical group 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 description 1
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 1
- BDOYKFSQFYNPKF-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;sodium Chemical compound [Na].[Na].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O BDOYKFSQFYNPKF-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- IYABWNGZIDDRAK-UHFFFAOYSA-N allene Chemical group C=C=C IYABWNGZIDDRAK-UHFFFAOYSA-N 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 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 1
- 238000010908 decantation Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 235000001727 glucose Nutrition 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- YLHXLHGIAMFFBU-UHFFFAOYSA-N methyl phenylglyoxalate Chemical compound COC(=O)C(=O)C1=CC=CC=C1 YLHXLHGIAMFFBU-UHFFFAOYSA-N 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Chemical group C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L83/10—Block- or graft-copolymers containing polysiloxane sequences
- C08L83/12—Block- or graft-copolymers containing polysiloxane sequences containing polyether sequences
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
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- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
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- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
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- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/30—Emulsion polymerisation with the aid of emulsifying agents non-ionic
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- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
- C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
- C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
- C08F299/08—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polysiloxanes
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- C08G77/00—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
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- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- C08J3/12—Powdering or granulating
- C08J3/126—Polymer particles coated by polymer, e.g. core shell structures
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- C08G77/38—Polysiloxanes modified by chemical after-treatment
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- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
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- C08K5/07—Aldehydes; Ketones
- C08K5/08—Quinones
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- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
- C08L83/06—Polysiloxanes containing silicon bound to oxygen-containing groups
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Description
(A)ラジカル重合反応性基を有するオルガノポリシロキサン:100質量部
(B)ラジカル重合反応性基を有する界面活性剤:0.5~50質量部
(C)ラジカル発生剤:0.1~5質量部
(D)水:10~1000質量部
はじめに、本発明の親水性シリコーン粒子を詳細に説明する。
このような親水性シリコーン粒子は、下記(A)~(D)成分からなるエマルジョンをラジカル重合(すなわち、乳化重合)させ、(B)成分由来の親水性基をシリコーン粒子の表面に固定化することで得ることができる。
(A)ラジカル重合反応性基を有するオルガノポリシロキサン:100質量部
(B)ラジカル重合反応性基を有する界面活性剤:0.5~50質量部
(C)ラジカル発生剤:0.1~5質量部
(D)水:10~1000質量部
本発明における(A)成分である、ラジカル重合反応性基を有するオルガノポリシロキサンは、下記式(1)で表されるものであることが好ましい。
本発明における(B)成分である、ラジカル重合反応性基を有する界面活性剤は、上記(A)成分を水中に乳化分散でき、ラジカル重合反応性基を有するものである。この界面活性剤は1種単独で又は2種以上を適宜組み合わせて用いることができる。ラジカル重合反応性基としては、ビニル基、アクリロイル基、メタクリロイル基、アリル基、イソプレニル基、スチリル基等が挙げられ、市販品ではアクアロンANシリーズ、アクアロンKNシリーズ、アクアロンRNシリーズ、アクアロンARシリーズ、アクアロンKHシリーズ、アクアロンBCシリーズ、アクアロンHSシリーズ(第一工業製薬社製)、ラテムルPD-400シリーズ、ラテムルPD-104(花王社製)、エレミノールJS-20,エレミノールRS-3000(三洋化成工業社製)等が挙げられる。中でも、(A)成分の乳化安定性及び得られる親水性シリコーン粒子の特性の面から、アクアロンANシリーズ、アクアロンKNシリーズ、アクアロンRNシリーズ、ラテムルPD-400シリーズ等の非イオン性界面活性剤が好ましい。
乳化重合に用いるラジカル発生剤としては、過酸化物、アゾ系開始剤、酸化剤と還元剤を組み合わせたレドックス系開始剤、または光重合開始剤などが挙げられる。
本発明における親水性シリコーン粒子を製造するためのエマルジョンは、(D)成分として水を、上記した(A)成分、(B)成分及び(C)成分と混合し、常法に準じて乳化分散させることにより調製することができる。(D)成分である水は、好ましくはイオン交換水であるのがよい。(D)水の含有量は(A)成分100質量部に対して10~1000質量部であり、50~500質量部であることが好ましい。
本発明の親水性シリコーン粒子の製造方法で用いるエマルジョンには、上記(A)~(D)成分以外に、必要に応じて、種々の添加剤を配合することができる。例えば、増粘剤、防腐剤、pH調整剤、酸化防止剤、重合禁止剤等が挙げられ、それぞれ1種単独で又は2種以上を適宜組み合わせて、適量用いることができる。
下記式(3)で表される、動粘度が180mm2/sの二官能性メタクリルポリシロキサン((A)成分):86.0gと、ポリオキシアルキレンアルケニルエーテル(花王製、ラテムル-420)((B)成分):8.6g及び2-ヒドロキシ-2-メチル-1-フェニル-プロパン-1-オン(BASF製Irgacure 1173)((C)成分):0.86g、脱イオン水((D)成分):76.54gを、ホモミキサーを用いて乳化分散し、エマルジョンを得た。
上記式(3)で表される、動粘度が180mm2/sの二官能性メタクリルポリシロキサン((A)成分):86.0gと、ポリオキシアルキレンアルケニルエーテル(花王製、ラテムル-420)((B)成分):8.6g及び脱イオン水((D)成分):77.4gを、ホモミキサーを用いて乳化分散し、エマルジョンを得た。
上記式(3)で表される、動粘度が180mm2/sの二官能性メタクリルポリシロキサン((A)成分):86.0gと、ポリオキシエチレン-1-(アリルオキシメチル)アルキルエーテル(第一工業製薬製、アクアロンKN-10)((B)成分):8.6g及び脱イオン水((D)成分):77.4gをホモミキサーを用いて乳化分散し、エマルジョンを得た。
上記式(3)で表される、動粘度が180mm2/sの二官能性メタクリルポリシロキサン:86.0gと、ポリオキシエチレンラウリルエーテル(花王製、エマルゲン109P):8.6g及び2-ヒドロキシ-2-メチル-1-フェニル-プロパン-1-オン(BASF製Irgacure 1173):0.86g、脱イオン水:76.54gを、ホモミキサーを用いて乳化分散し、エマルジョンを得た。すなわち、この比較例1では、界面活性剤としてラジカル重合反応性基を有しない界面活性剤を用いた。
上記式(3)で表される、動粘度が180mm2/sの二官能性メタクリルポリシロキサン:86.0gと、ポリオキシエチレンラウリルエーテル(花王製、エマルゲン109P):8.6g及び脱イオン水:77.4gを、ホモミキサーを用いて乳化分散し、エマルジョンを得た。すなわち、この比較例2では、界面活性剤としてラジカル重合反応性基を有しない界面活性剤を用いた。
Claims (5)
- 体積平均粒径が0.1~100μmのシリコーン粒子の表面に、界面活性剤がラジカル重合による化学結合で固定されてなる親水性シリコーン粒子の製造方法であって、
下記(A)~(D)成分からなるエマルジョンをラジカル重合させ、(B)成分由来の親水性基をシリコーン粒子の表面に固定化することを特徴とする親水性シリコーン粒子の製造方法。
(A)少なくとも両末端にラジカル重合反応性基を有するオルガノポリシロキサン:100質量部
(B)ラジカル重合反応性基を有する界面活性剤:0.5~50質量部
(C)ラジカル発生剤:0.1~5質量部
(D)水:50~500質量部 - 前記(B)成分を、非イオン性界面活性剤とすることを特徴とする請求項1に記載の親水性シリコーン粒子の製造方法。
- 前記(B)成分を、40~99℃に曇点を有するものとすることを請求項1又は請求項2に記載の親水性シリコーン粒子の製造方法。
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CN202080084176.3A CN114746461A (zh) | 2019-12-05 | 2020-10-23 | 亲水性有机硅颗粒及其制造方法 |
EP20897559.9A EP4071190A4 (en) | 2019-12-05 | 2020-10-23 | HYDROPHILIC SILICONE PARTICLES AND METHOD FOR PRODUCING THE SAME |
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US4962165A (en) * | 1989-01-12 | 1990-10-09 | Rohm And Haas Company | Process for making silicone particles |
JP2787737B2 (ja) | 1991-06-28 | 1998-08-20 | 東レ・ダウコーニング・シリコーン 株式会社 | 水性塗料組成物の製造方法 |
JP3529593B2 (ja) | 1996-09-13 | 2004-05-24 | 信越化学工業株式会社 | 化粧料の製造方法 |
JPH10175816A (ja) | 1996-12-18 | 1998-06-30 | Toray Dow Corning Silicone Co Ltd | 化粧品原料、化粧品、および化粧品の製造方法 |
JP3916740B2 (ja) | 1997-11-07 | 2007-05-23 | 信越化学工業株式会社 | 球状シリコーンゴムの水性分散液 |
JP5473195B2 (ja) | 2007-05-16 | 2014-04-16 | 東レ・ダウコーニング株式会社 | 架橋シリコーン粒子およびその製造方法 |
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