JP4926420B2 - 乳化組成物 - Google Patents
乳化組成物 Download PDFInfo
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- JP4926420B2 JP4926420B2 JP2005210974A JP2005210974A JP4926420B2 JP 4926420 B2 JP4926420 B2 JP 4926420B2 JP 2005210974 A JP2005210974 A JP 2005210974A JP 2005210974 A JP2005210974 A JP 2005210974A JP 4926420 B2 JP4926420 B2 JP 4926420B2
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- 239000000203 mixture Substances 0.000 title claims description 45
- -1 fatty acid salt Chemical class 0.000 claims description 84
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 64
- 125000004432 carbon atom Chemical group C* 0.000 claims description 55
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 55
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 36
- 229940106189 ceramide Drugs 0.000 claims description 35
- 229920006395 saturated elastomer Polymers 0.000 claims description 30
- 229930195734 saturated hydrocarbon Natural products 0.000 claims description 25
- 229930195735 unsaturated hydrocarbon Natural products 0.000 claims description 24
- 150000001783 ceramides Chemical class 0.000 claims description 22
- WWUZIQQURGPMPG-KRWOKUGFSA-N sphingosine Chemical compound CCCCCCCCCCCCC\C=C\[C@@H](O)[C@@H](N)CO WWUZIQQURGPMPG-KRWOKUGFSA-N 0.000 claims description 21
- 125000004122 cyclic group Chemical group 0.000 claims description 20
- WWUZIQQURGPMPG-UHFFFAOYSA-N (-)-D-erythro-Sphingosine Natural products CCCCCCCCCCCCCC=CC(O)C(N)CO WWUZIQQURGPMPG-UHFFFAOYSA-N 0.000 claims description 19
- 125000000217 alkyl group Chemical group 0.000 claims description 19
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 18
- 125000003545 alkoxy group Chemical group 0.000 claims description 18
- 125000005113 hydroxyalkoxy group Chemical group 0.000 claims description 18
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 claims description 17
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 claims description 14
- 125000004043 oxo group Chemical group O=* 0.000 claims description 13
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 125000003277 amino group Chemical group 0.000 claims description 9
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 9
- 239000000194 fatty acid Substances 0.000 claims description 9
- 229930195729 fatty acid Natural products 0.000 claims description 9
- 235000011187 glycerol Nutrition 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- 125000003976 glyceryl group Chemical group [H]C([*])([H])C(O[H])([H])C(O[H])([H])[H] 0.000 claims description 8
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 claims description 8
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- 150000004665 fatty acids Chemical group 0.000 claims description 7
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 7
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 235000021122 unsaturated fatty acids Nutrition 0.000 claims description 5
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- 229930195712 glutamate Natural products 0.000 claims description 4
- 150000004671 saturated fatty acids Chemical class 0.000 claims description 4
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- 229910019142 PO4 Inorganic materials 0.000 claims description 3
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- ZVEQCJWYRWKARO-UHFFFAOYSA-N ceramide Natural products CCCCCCCCCCCCCCC(O)C(=O)NC(CO)C(O)C=CCCC=C(C)CCCCCCCCC ZVEQCJWYRWKARO-UHFFFAOYSA-N 0.000 description 11
- VVGIYYKRAMHVLU-UHFFFAOYSA-N newbouldiamide Natural products CCCCCCCCCCCCCCCCCCCC(O)C(O)C(O)C(CO)NC(=O)CCCCCCCCCCCCCCCCC VVGIYYKRAMHVLU-UHFFFAOYSA-N 0.000 description 11
- 239000013078 crystal Substances 0.000 description 10
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- 125000001424 substituent group Chemical group 0.000 description 8
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- 210000000434 stratum corneum Anatomy 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 125000003739 carbamimidoyl group Chemical group C(N)(=N)* 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
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 6
- 125000002958 pentadecyl 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])[H] 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 210000003491 skin Anatomy 0.000 description 6
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 5
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 5
- 235000020778 linoleic acid Nutrition 0.000 description 5
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 5
- 150000002632 lipids Chemical class 0.000 description 5
- 239000007764 o/w emulsion Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 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 5
- AERBNCYCJBRYDG-KSZLIROESA-N phytosphingosine Chemical compound CCCCCCCCCCCCCC[C@@H](O)[C@@H](O)[C@@H](N)CO AERBNCYCJBRYDG-KSZLIROESA-N 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 4
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- AERBNCYCJBRYDG-UHFFFAOYSA-N D-ribo-phytosphingosine Natural products CCCCCCCCCCCCCCC(O)C(O)C(N)CO AERBNCYCJBRYDG-UHFFFAOYSA-N 0.000 description 4
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 4
- 239000002537 cosmetic Substances 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000000499 gel Substances 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 229940033329 phytosphingosine Drugs 0.000 description 4
- 238000012916 structural analysis Methods 0.000 description 4
- ZBBHYFGGAMDNPF-UHFFFAOYSA-N 1-(2-hydroxyethylamino)-3-(16-methylheptadecoxy)propan-2-ol Chemical compound CC(C)CCCCCCCCCCCCCCCOCC(O)CNCCO ZBBHYFGGAMDNPF-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000004475 Arginine Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 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
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 description 3
- ATGQXSBKTQANOH-UWVGARPKSA-N N-oleoylphytosphingosine Chemical compound CCCCCCCCCCCCCC[C@@H](O)[C@@H](O)[C@H](CO)NC(=O)CCCCCCC\C=C/CCCCCCCC ATGQXSBKTQANOH-UWVGARPKSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 description 3
- 229960000541 cetyl alcohol Drugs 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 229940049906 glutamate Drugs 0.000 description 3
- 229960002989 glutamic acid Drugs 0.000 description 3
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 235000011007 phosphoric acid Nutrition 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 150000003410 sphingosines Chemical class 0.000 description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 3
- 230000005068 transpiration Effects 0.000 description 3
- 125000002889 tridecyl 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])[H] 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- 125000004209 (C1-C8) alkyl group Chemical group 0.000 description 2
- OKMWKBLSFKFYGZ-UHFFFAOYSA-N 1-behenoylglycerol Chemical compound CCCCCCCCCCCCCCCCCCCCCC(=O)OCC(O)CO OKMWKBLSFKFYGZ-UHFFFAOYSA-N 0.000 description 2
- 229940114072 12-hydroxystearic acid Drugs 0.000 description 2
- ASKIVFGGGGIGKH-UHFFFAOYSA-N 2,3-dihydroxypropyl 16-methylheptadecanoate Chemical compound CC(C)CCCCCCCCCCCCCCC(=O)OCC(O)CO ASKIVFGGGGIGKH-UHFFFAOYSA-N 0.000 description 2
- OSCJHTSDLYVCQC-UHFFFAOYSA-N 2-ethylhexyl 4-[[4-[4-(tert-butylcarbamoyl)anilino]-6-[4-(2-ethylhexoxycarbonyl)anilino]-1,3,5-triazin-2-yl]amino]benzoate Chemical compound C1=CC(C(=O)OCC(CC)CCCC)=CC=C1NC1=NC(NC=2C=CC(=CC=2)C(=O)NC(C)(C)C)=NC(NC=2C=CC(=CC=2)C(=O)OCC(CC)CCCC)=N1 OSCJHTSDLYVCQC-UHFFFAOYSA-N 0.000 description 2
- 125000004200 2-methoxyethyl group Chemical group [H]C([H])([H])OC([H])([H])C([H])([H])* 0.000 description 2
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- 241001465754 Metazoa Species 0.000 description 2
- BBAFBDLICMHBNU-MFZOPHKMSA-N N-(2-hydroxyoctadecanoyl)-4-hydroxysphinganine Chemical compound CCCCCCCCCCCCCCCCC(O)C(=O)N[C@@H](CO)[C@H](O)[C@H](O)CCCCCCCCCCCCCC BBAFBDLICMHBNU-MFZOPHKMSA-N 0.000 description 2
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 2
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- 150000001298 alcohols Chemical class 0.000 description 2
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- 230000000052 comparative effect Effects 0.000 description 2
- OTKJDMGTUTTYMP-UHFFFAOYSA-N dihydrosphingosine Natural products CCCCCCCCCCCCCCCC(O)C(N)CO OTKJDMGTUTTYMP-UHFFFAOYSA-N 0.000 description 2
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- NOPFSRXAKWQILS-UHFFFAOYSA-N docosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCO NOPFSRXAKWQILS-UHFFFAOYSA-N 0.000 description 2
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- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
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- ULMXYNZCSJBKOQ-UHFFFAOYSA-N n-(3-hexadecoxy-3-hydroxypropyl)-n-(2-hydroxyethyl)hexadecanamide Chemical compound CCCCCCCCCCCCCCCCOC(O)CCN(CCO)C(=O)CCCCCCCCCCCCCCC ULMXYNZCSJBKOQ-UHFFFAOYSA-N 0.000 description 2
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- NRWMBHYHFFGEEC-KTKRTIGZSA-N (9Z)-1-O-octadec-9-enyl glycerol Chemical compound CCCCCCCC\C=C/CCCCCCCCOCC(O)CO NRWMBHYHFFGEEC-KTKRTIGZSA-N 0.000 description 1
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- FFJCNSLCJOQHKM-CLFAGFIQSA-N (z)-1-[(z)-octadec-9-enoxy]octadec-9-ene Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCCCCCCC\C=C/CCCCCCCC FFJCNSLCJOQHKM-CLFAGFIQSA-N 0.000 description 1
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 description 1
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- 125000002469 tricosyl 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])[H] 0.000 description 1
- VLPFTAMPNXLGLX-UHFFFAOYSA-N trioctanoin Chemical compound CCCCCCCC(=O)OCC(OC(=O)CCCCCCC)COC(=O)CCCCCCC VLPFTAMPNXLGLX-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 238000004736 wide-angle X-ray diffraction Methods 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 1
Landscapes
- Cosmetics (AREA)
Description
この角層ICLの脂質組成の約50%はセラミドで、その他コレステロール、コレステロールエステル、脂肪酸等からなる。一般に角層ICL、特にセラミドが減少すると、荒れ肌、乾燥肌、老化肌等の好ましくない肌状態を引き起こすことが知られており、セラミドを外用で補うことにより、機能が低下した角質層状態を改善することができる。
また、特許文献5、特許文献6、特許文献7では、リン脂質を用いた製剤化が検討されているが、セラミド類の安定な乳化と良好な使用感を得るには十分なものではなかった。
X1、X2、及びX3は、各々独立して水素原子、ヒドロキシル基又はアセトキシ基を示し、X4は水素原子、アセチル基、グリセリル基、隣接する酸素原子と一緒になってオキソ基を形成する置換基を示す。特に、X1、X2、及びX3のうち0〜1個がヒドロキシル基で、残余が水素原子、及びX4が水素原子であるものが好ましい。なお、Yがメチン基のとき、X1とX2のいずれか一方のみが水素原子であり、他方は存在しない。また、X4がオキソ基を形成するとき、X3は存在しない。
(I)一般式(2)で表わされる天然型スフィンゴシン。
これらのスフィンゴシンは天然型(D(+)体)の光学活性体を用いても、非天然型(L(−)体)の光学活性体を用いても、更に天然型と非天然型の混合物を用いてもよい。上記化合物の相対立体配置は、天然型の立体配置のものでも、それ以外の非天然型の立体配置のものでも良く、また、これらの混合物によるものでもよい。
特に、PHYTOSPHINGOSINE(INCI名;8th Edition)及び次式で表わされるものが好ましい。
天然型スフィンゴシンの市販のものとしては、例えば、D-Sphingosine(4-Sphingenine) (SIGMA-ALDRICH社)、DS-phytosphingosine (DOOSAN社)、phytosphingosine(コスモファーム社)が挙げられる。
また、aが2のときR2はR10及びR11を示し、aが3のときR2はR10、R11及びR12である。
特に、R10及びR11のいずれか1つが水素原子で、他方が2−ヒドロキシエチル、1,1−ジメチル−2−ヒドロキシエチル、1,1−ビス(ヒドロキシメチル)エチル、2−(2−ヒドロキシエトキシ)エチルである2級アミンが好ましい。
擬似型スフィンゴシンの具体例としては、次の擬似型スフィンゴシン(i)〜(iv)が挙げられる。
Zはメチレン基、メチン基又は酸素原子のいずれかを示す。
R12及びR13は、水素原子、ヒドロキシル基、ヒドロキシメチル基又はアセトキシメチル基を示し、好ましいR12は水素原子又はヒドロキシメチル基であり、好ましいR13は水素原子である。
(I)一般式(5)で表わされる天然由来のセラミド類又は同構造の合成物及びその誘導体(以下、天然型セラミドと記載する。)。
これらのセラミドは天然型(D(−)体)の光学活性体を用いても、非天然型(L(+)体)の光学活性体を用いても、更に天然型と非天然型の混合物を用いてもよい。上記化合物の相対立体配置は、天然型の立体配置のものでも、それ以外の非天然型の立体配置のものでも良く、また、これらの混合物によるものでもよい。特にCERAMIDE1、CERAMIDE2、CERAMIDE3、CERAMIDE5、CERAMIDE6IIの化合物(以上、INCI、8th Edition)及び次式で表わされるものが好ましい。
このような天然型セラミドの市販のものとしては、Ceramide I、Ceramide III、Ceramide IIIA、Ceramide IIIB、Ceramide IIIC、Ceramide VI(以上、コスモファーム社)、Ceramide TIC-001(高砂香料社)、CERAMIDE II(Quest International社)、DS-Ceramide VI、DS-CLA-Phytoceramide、C6-Phytoceramide、DS-ceramide Y3S(DOOSAN社)、CERAMIDE2(セダーマ社)が挙げられる。
これらのうち、グリセリンモノベヘン酸エステルが好ましい。
これらのうち、セタノール、ステアリルアルコールが好ましい。
これらのうち、特にグリセリンが好ましい。
表1に示す組成の水中油型乳化組成物を製造し、X線による構造解析及び光学顕微鏡による観察を行った。結果を表1に併せて示す。
第I相の成分を、80〜95℃で加熱混合し、これに、プロペラ撹拌下(300rpm)
、80〜95℃に加熱した第II相を加えて乳化し、25℃まで徐々に冷却して、水中油型乳化組成物を得た。
(1)X線による構造解
得られた水中油型乳化組成物について、製造直後及び保存加速試験(サイクル試験:−15℃〜60℃のサイクル/1日、これを7日間行う)後において、2θ=10〜30°の広角X線回折ピークより、WilsonとOttの方法(Wilson,D.A. and Ott,E., J.Chem.Phys., 2, 231-238(1934))に従い、構造を決定した。
偏光下、光学顕微鏡観察により、結晶の有無を確認した。
実施例1〜8と同様にして、表2に示す組成の水中油型乳化組成物を製造し、X線による構造解析及び光学顕微鏡による解析を行った。結果を表2に併せて示す。
実施例10、比較例2及び3で得られた水中油型乳化組成物について、カップ法により、化粧料の透湿度試験を行った。
すなわち、40mLバイアルビン(ピアースバイアル CV−400(アズワン社製);蓋に直径17.3mmの孔が空いている)に水25mLを入れ、細孔径0.45μmのメンブランフィルター(セルロース混合エステルタイプメンブランフィルター、アドバンテック東洋社製)をビンの上にのせ蓋をする。乳化組成物0.05gをむき出しになっているメンブランフィルター部分に塗布した。20℃、湿度40%で3日間放置後(サンプルの質量変動がない状態)、質量を測定(M1)、更にその24時間後の質量を測定(M2)し、下記式により、水分蒸散量を求めた。
水分蒸散量(g)= M1−M2
透湿度(%)=(乳化組成物の水分蒸散量/Placebo処理の水分蒸散量)×100
結果を表3に示す。透湿度率が小さいほど、保湿性が高いことを意味する。
実施例1〜8と同様にして、表4に示す組成の水中油型乳化組成物を製造し、X線による構造解析及び光学顕微鏡による解析を行った。結果を表4に併せて示す。
実施例1と同様にして、以下に示す組成の水中油型乳化化粧料を製造した。得られた化粧料は、保存安定性試験後もα構造を保ち、結晶の析出はみられなかった。
(成分)
(1)1−(2−ヒドロキシエチルアミノ)−3−イソステアリル
オキシ−2−プロパノール 2(質量%)
(2)N−(ヘキサデシロキシヒドロキシプロピル)−N−ヒドロ
キシエチルヘキサデカナミド 0.9
(3)モノベヘン酸グリセリル 0.3
(4)セタノール 0.3
(5)L−グルタミン酸 1.2
(6)水 バランス
Claims (3)
- (A)スフィンゴシン、擬似スフィンゴシン、又はこれらの塩、炭素数12〜24の脂肪酸塩、ポリオキシエチレンアルキルエーテルリン酸塩及び長鎖N−アシルグルタミン酸塩から選ばれるアニオン界面活性剤、並びに第4級アンモニウム塩から選ばれる化合物、
(B)下記一般式(5)又は(6)で表されるセラミド類、
(C)炭素数10〜24の脂肪酸残基を有するグリセリンモノ脂肪酸エステル、(D)炭素数10〜24の高級アルコール、並びに(E)水を含有し、成分(B)、(C)及び(D)の含有量の質量割合が、(B)/〔(B)+(C)+(D)〕=0.1〜0.75であり、成分(C)及び(D)の含有量の質量割合が、(C)/〔(C)+(D)〕=0.1〜0.75である乳化組成物。 - 更に、(F)多価アルコールを含有する請求項1記載の乳化組成物。
- α型構造のゲルを形成する請求項1又は2記載の乳化組成物。
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