JP2008280529A - 樹脂粒子 - Google Patents
樹脂粒子 Download PDFInfo
- Publication number
- JP2008280529A JP2008280529A JP2008100022A JP2008100022A JP2008280529A JP 2008280529 A JP2008280529 A JP 2008280529A JP 2008100022 A JP2008100022 A JP 2008100022A JP 2008100022 A JP2008100022 A JP 2008100022A JP 2008280529 A JP2008280529 A JP 2008280529A
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- JP
- Japan
- Prior art keywords
- group
- resin particles
- meth
- monomer
- surfactant
- Prior art date
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- Granted
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- 239000002245 particle Substances 0.000 title claims abstract description 123
- 239000011347 resin Substances 0.000 title claims abstract description 74
- 229920005989 resin Polymers 0.000 title claims abstract description 74
- 239000000178 monomer Substances 0.000 claims abstract description 47
- 239000002537 cosmetic Substances 0.000 claims abstract description 43
- 239000004094 surface-active agent Substances 0.000 claims abstract description 39
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 17
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 16
- 150000001768 cations Chemical class 0.000 claims abstract description 10
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 125000005702 oxyalkylene group Chemical group 0.000 claims abstract description 4
- 125000001183 hydrocarbyl group Chemical group 0.000 claims abstract 2
- -1 acrylic ester Chemical class 0.000 claims description 49
- 125000004432 carbon atom Chemical group C* 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 8
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 238000007334 copolymerization reaction Methods 0.000 claims description 4
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 claims description 3
- 125000005396 acrylic acid ester group Chemical group 0.000 claims 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 claims 1
- 230000002209 hydrophobic effect Effects 0.000 abstract description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 37
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 25
- 238000002156 mixing Methods 0.000 description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 239000006185 dispersion Substances 0.000 description 20
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 16
- 229920001296 polysiloxane Polymers 0.000 description 16
- 125000000217 alkyl group Chemical group 0.000 description 13
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 9
- 239000002609 medium Substances 0.000 description 9
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- 238000006116 polymerization reaction Methods 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
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- 238000011156 evaluation Methods 0.000 description 7
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- 238000000527 sonication Methods 0.000 description 7
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- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 6
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 6
- 125000003342 alkenyl group Chemical group 0.000 description 6
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 description 6
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 150000002430 hydrocarbons Chemical group 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
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- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 4
- 239000007900 aqueous suspension Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000005690 diesters Chemical class 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 4
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- 238000006386 neutralization reaction Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229940058015 1,3-butylene glycol Drugs 0.000 description 3
- 241000720945 Hosta Species 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 235000019437 butane-1,3-diol Nutrition 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 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 3
- 230000000694 effects Effects 0.000 description 3
- 235000019197 fats Nutrition 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 239000006210 lotion Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 238000010557 suspension polymerization reaction Methods 0.000 description 3
- 238000009210 therapy by ultrasound Methods 0.000 description 3
- DSEKYWAQQVUQTP-XEWMWGOFSA-N (2r,4r,4as,6as,6as,6br,8ar,12ar,14as,14bs)-2-hydroxy-4,4a,6a,6b,8a,11,11,14a-octamethyl-2,4,5,6,6a,7,8,9,10,12,12a,13,14,14b-tetradecahydro-1h-picen-3-one Chemical compound C([C@H]1[C@]2(C)CC[C@@]34C)C(C)(C)CC[C@]1(C)CC[C@]2(C)[C@H]4CC[C@@]1(C)[C@H]3C[C@@H](O)C(=O)[C@@H]1C DSEKYWAQQVUQTP-XEWMWGOFSA-N 0.000 description 2
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical class OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 2
- MACVUTCNLULHLQ-UHFFFAOYSA-N 2-[methyl(octadecanoyl)amino]ethanesulfonic acid;sodium Chemical compound [Na].CCCCCCCCCCCCCCCCCC(=O)N(C)CCS(O)(=O)=O MACVUTCNLULHLQ-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000004342 Benzoyl peroxide Substances 0.000 description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 229960000541 cetyl alcohol Drugs 0.000 description 2
- 235000019864 coconut oil Nutrition 0.000 description 2
- 239000003240 coconut oil Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000008406 cosmetic ingredient Substances 0.000 description 2
- RNPXCFINMKSQPQ-UHFFFAOYSA-N dicetyl hydrogen phosphate Chemical compound CCCCCCCCCCCCCCCCOP(O)(=O)OCCCCCCCCCCCCCCCC RNPXCFINMKSQPQ-UHFFFAOYSA-N 0.000 description 2
- 229940093541 dicetylphosphate Drugs 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 2
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- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
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- 239000000049 pigment Substances 0.000 description 2
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Landscapes
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Abstract
【解決手段】(メタ)アクリル酸エステルと、カルボキシル基を有する単量体を含む単量体成分を共重合してなり、表面の少なくとも一部が一般式(1)で表される界面活性剤で被覆されてなる架橋(メタ)アクリル酸エステル系樹脂粒子、その製造法並びにその樹脂粒子を含有する化粧料。
〔式中、R1は炭素数8〜23の1価炭化水素基、R2及びR3はそれぞれ独立に、−OM1(M1は水素原子又はカチオン)又は−O(AO)n−R1で表される基、Aは炭素数2〜4のアルキレン基、nはオキシアルキレン基の平均付加モル数を示す0〜40の数であり、n個のAは同一でも異なっていても良い。〕
【選択図】なし
Description
本発明の樹脂粒子は、(メタ)アクリル酸エステルから選ばれる少なくとも1種の単量体と、カルボキシル基を有する単量体を含む単量体成分を共重合してなり、表面の少なくとも一部が界面活性剤(1)で被覆されてなる、架橋(メタ)アクリル酸エステル系樹脂粒子である。
なお、本明細書において、「(メタ)アクリル」とは、アクリル及びメタクリルの両方を含む概念である。
これらの一部は、リン酸、リン酸モノエステル、リン酸ジエステル、リン酸トリエステルの混合物として販売されているが、リン酸/モノエステル/ジエステル/トリエステルの重量混合比は任意の割合で使用できる。またこれらの一部は中和されていてもよい。
[式中、R4は置換基を有していてもよい炭素数5〜30のアルキル基又はアルケニル基、R5は水素原子又はメチル基、M2は水素原子又はカチオンを示す。]
一般式(2)において、R4としては、炭素数6〜24のアルキル基又はアルケニル基が好ましい。具体例としては、ヘキシル、オクチル、ノニル、デシル、ウンデシル、ドデシル、テトラデシル、ヘキサデシル、オクタデシル、エイコシル、ドコシル、テトラコシル、デセニル、ドデセニル、テトラデセニル、ヘキサデセニル、オクタデセニル、エイコセニル等が挙げられる。また、アルキル基又はアルケニル基の置換基としては、水酸基、カルボキシル基、エステル基、エーテル基、アミド基等が挙げられる。
重合温度や重合時間は特に限定されるものではないが、重合温度は40〜100℃、重合時間は1〜15時間が好ましい。
本発明の化粧料中、本発明の架橋(メタ)アクリル酸エステル系樹脂粒子の含有量は、その化粧料の目的に応じて適宜選択することができ、特に限定されるものではないが、0.1〜50質量%が好ましく、1〜30質量%がさらに好ましい。
ビーカーにラウリルメタクリレート(LMA)164g、エチレングリコールジメタクリレート(EGDMA)30g、メタクリル酸(MAA)6g、ラウロイルパーオキサイド6gを仕込み混合攪拌して溶解させた。ここにN−ステアロイル−N−メチルタウリンナトリウム(SMT)を1.0g溶解させたイオン交換水300gを加え、ホモミキサーで粒径が2.2μmになるまで分散させた。
ビーカーにLMA 144g、EGDMA 50g、MAA 6g、ラウロイルパーオキサイド6gを仕込み混合攪拌して溶解させた。ここにSMTを0.8g溶解させたイオン交換水300gを加え、ホモミキサーで粒径が2.0μmになるまで分散させた。
ホスタファットKW340Dの代わりに、MEP08−PEL[花王(株)製、ポリオキシエチレン(4EO)ポリオキシプロピレン(30PO)オクチルエーテルリン酸(リン酸:モノエステル:ジエステル=1:79:20(質量比))]20gと1N NaOH0.96gを溶解させた水300gを用いる以外は実施例2と同様にして、樹脂粒子を得た。
SMTの量を0.6gとし、ホスタファットKW340Dの代わりに、DAP−60H(花王(株)製、リン酸ジセチル)20gと1N NaOH9.1gを溶解させた水300gを用いる以外は実施例2と同様にして、樹脂粒子を得た。
DAP−60H20gと1N NaOH9.1gを溶解させた水300gの代わりに、MAP−16G−ARG(花王(株)製、リン酸−2−ヘキシルデシルアルギニン中和物)20gを用いる以外は実施例4と同様にして樹脂粒子を得た。
DAP−60H20gと1N NaOH9.1gを溶解させた水300gの代わりに、TEP−2(花王(株)製、リン酸トリ(エトキシエトキシエチル))20gを用いる以外は実施例4と同様にして樹脂粒子を得た。
ビーカーにLMA 164g、EGDMA 30g、MAA 6g、ラウロイルパーオキサイド6gを仕込み混合攪拌して溶解させた。ここにSPE−104NBを1.0g溶解させたイオン交換水300gを加え、ホモミキサーで粒径が2.2μmになるまで分散させた。
実施例1と同様にして粒径2.2μmの分散液を得た。この分散液を4つ口フラスコに注ぎ込み、攪拌しながら窒素置換を30分行った。オイルバスによりフラスコ内部の温度を70℃まで加温し、70℃に達してから30分加熱を行った後、フラスコ内部の温度を80℃まで加温し、80℃に達してから4時間加熱を行った。その後、室温まで冷却し、重合した粒子の分散液に1N NaOH3.5gを滴下して中和を行い、樹脂粒子分散液を得た。該樹脂粒子分散液を凍結乾燥することにより樹脂粒子を得た。
SPE−104NBの代わりに、レオドールスーパーTW−L120(花王(株)製、ポリオキシエチレン(20EO)ヤシ油脂肪酸ソルビタン)30gを用いる以外は実施例1と同様にして樹脂粒子を得た。
SPE−104NBの代わりに、レオドールスーパTW−S120(花王(株)製、モノステアリン酸ポリオキシエチレン(20EO)ソルビタン)30gを用いる以外は実施例1と同様にして樹脂粒子を得た。
樹脂粒子を(株)堀場製作所レーザー回折散乱式粒度分布測定装置(型番:LA920)にて、相対屈折率が1.10(樹脂粒子の屈折率を1.46、水の屈折率を1.33とする)の条件にて、粒径を測定した際のメジアン径を平均粒径とした。
各樹脂粒子3g、ポリオキシエチレン・メチルポリシロキサン共重合体(KF−6015 信越化学工業製)0.05g、パルミチン酸イソプロピル1.5gを均一に混合し、得られた混合物をエアゾール用耐圧ガラス容器に詰めた後、LPG95.45gを充填し、スプレーを得た。スプレー中の粒子の分散状態を観察し、下記の基準で分散性を4段階で評価した。また、更に詳細な分散性の評価を行うために、下記の基準で10段階評価を行った。
・4段階の評価基準
4…混合2日後に粒子が均一に分散している
3…混合2日後に粒子の凝集物が確認できる。かつ、混合直後に超音波処理を15分行うと均一に分散している
2…混合2日後に粒子の凝集物が確認できる。かつ、混合直後に超音波処理を15分行っても粒子の凝集物が確認できるが、さらに14日後に分散している
1…混合2日後に粒子の凝集物が確認できる。かつ、混合直後に超音波処理を15分行っても粒子の凝集物が確認でき、さらに14日後も凝集物が確認できる。
10…混合直後に粒子が均一に分散している
9…混合1日後に粒子が均一に分散している
8…混合2日後に粒子が均一に分散している
7…混合2日後に粒子の凝集物が確認できる。かつ、混合直後に超音波処理を15分行うと均一に分散している
6…混合2日後に粒子の凝集物が確認できる。かつ、混合直後に超音波処理を15分行っても粒子の凝集物が確認できるが、さらに1日後に分散している
5…混合2日後に粒子の凝集物が確認できる。かつ、混合直後に超音波処理を15分行っても粒子の凝集物が確認できるが、さらに2日後に分散している
4…混合2日後に粒子の凝集物が確認できる。かつ、混合直後に超音波処理を15分行っても粒子の凝集物が確認できるが、さらに5日後に分散している
3…混合2日後に粒子の凝集物が確認できる。かつ、混合直後に超音波処理を15分行っても粒子の凝集物が確認できるが、さらに7日後に分散している
2…混合2日後に粒子の凝集物が確認できる。かつ、混合直後に超音波処理を15分行っても粒子の凝集物が確認できるが、さらに14日後に分散している。
1…混合2日後に粒子の凝集物が確認できる。かつ、混合直後に超音波処理を15分行っても粒子の凝集物が確認でき、さらに14日後も凝集物が確認できる。
各樹脂粒子3g、ポリオキシエチレン・メチルポリシロキサン共重合体(KF−6015 信越化学工業製)0.05g、パルミチン酸イソプロピル1.5gを均一に混合し、得られた混合物をエアゾール用耐圧ガラス容器に詰めた後、LPG95.45gを充填し、スプレーを得た。上腕部にスプレーを均一に適量塗布し、なめらかさとさらさら感を官能評価し、それぞれ下記の基準に従いスコア化した。
5…非常になめらか
4…なめらか
3…ややなめらか
2…ややザラザラ
1…ザラザラ
0…非常にザラザラ
・さらさら感の評価基準
5…非常にさらさらする
4…さらさらする
3…ややさらさらする
2…やや湿りけがある
1…湿りけがある
0…非常に湿りけがある
LMA:ラウリルメタクリレート
EGDMA:エチレングリコールジメタクリレート
MAA:メタクリル酸
SMT:N−ステアロイル−N−メチルタウリンナトリウム
界面活性剤(1−1):SPE−104NB(花王(株)製)
界面活性剤(1−2):ホスタファットKW340D(クラリアントジャパン社製)
界面活性剤(1−3):MEP08−PEL(花王(株)製)
界面活性剤(1−4):DAP−60H(花王(株)製)
界面活性剤(1−5):MAP−16G−ARG(花王(株)製)
界面活性剤(1−6):TEP−2(花王(株)製)
界面活性剤(1’−1):レオドールスーパーTW−L120(花王(株)製)
界面活性剤(1’−2):レオドールスーパTW−S120(花王(株)製)
実施例1で得られた樹脂粒子3g、ポリオキシエチレン・メチルポリシロキサン共重合体(KF−6015 信越化学工業製)0.05g、パルミチン酸イソプロピル1.5gを均一に混合し、得られた混合物をエアゾール用耐圧ガラス容器に詰めた後、LPG95.45gを充填し、スプレー状化粧料を得た。専門パネラー5名の上腕部にスプレー状化粧料を均一に適量塗布し、官能評価を行ったところ、5名ともなめらかでさらさらした感触が得られた。
Claims (6)
- さらに表面の少なくとも一部が、スルホン酸基又はスルホン酸塩基を有する界面活性剤で被覆されてなる、請求項1記載の樹脂粒子。
- 請求項1又は2記載の樹脂粒子を含有する化粧料。
- アクリル酸エステル及びメタクリル酸エステルから選ばれる少なくとも1種の単量体と、カルボキシル基を有する単量体を含む単量体成分を共重合して得られた樹脂粒子に、請求項1記載の一般式(1)で表される界面活性剤を接触させる工程を含む、請求項1又は2記載の樹脂粒子の製法。
- スルホン酸基又はスルホン酸塩基を有する界面活性剤を分散剤として用いて共重合する、請求項4記載の製法。
- 請求項1記載の一般式(1)で表される界面活性剤を分散剤として用い、アクリル酸エステル及びメタクリル酸エステルから選ばれる少なくとも1種の単量体と、カルボキシル基を有する単量体を含む単量体成分を共重合する、請求項1又は2記載の樹脂粒子の製法。
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