JP7312527B2 - 乳化組成物 - Google Patents
乳化組成物 Download PDFInfo
- Publication number
- JP7312527B2 JP7312527B2 JP2017097581A JP2017097581A JP7312527B2 JP 7312527 B2 JP7312527 B2 JP 7312527B2 JP 2017097581 A JP2017097581 A JP 2017097581A JP 2017097581 A JP2017097581 A JP 2017097581A JP 7312527 B2 JP7312527 B2 JP 7312527B2
- Authority
- JP
- Japan
- Prior art keywords
- allantoin
- emulsified composition
- oil
- present
- emulsified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000203 mixture Substances 0.000 title claims description 116
- 239000000839 emulsion Substances 0.000 title claims description 11
- POJWUDADGALRAB-UHFFFAOYSA-N allantoin Chemical compound NC(=O)NC1NC(=O)NC1=O POJWUDADGALRAB-UHFFFAOYSA-N 0.000 claims description 174
- 229960000458 allantoin Drugs 0.000 claims description 86
- POJWUDADGALRAB-PVQJCKRUSA-N Allantoin Natural products NC(=O)N[C@@H]1NC(=O)NC1=O POJWUDADGALRAB-PVQJCKRUSA-N 0.000 claims description 85
- 125000002525 phosphocholine group Chemical group OP(=O)(OCC[N+](C)(C)C)O* 0.000 claims description 38
- 229920000642 polymer Polymers 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 150000001412 amines Chemical class 0.000 claims description 21
- 230000000087 stabilizing effect Effects 0.000 claims description 19
- 229920001577 copolymer Polymers 0.000 claims description 18
- ZSZRUEAFVQITHH-UHFFFAOYSA-N 2-(2-methylprop-2-enoyloxy)ethyl 2-(trimethylazaniumyl)ethyl phosphate Chemical group CC(=C)C(=O)OCCOP([O-])(=O)OCC[N+](C)(C)C ZSZRUEAFVQITHH-UHFFFAOYSA-N 0.000 claims description 13
- 239000003945 anionic surfactant Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000002628 heparin derivative Substances 0.000 claims description 11
- SOGAXMICEFXMKE-UHFFFAOYSA-N alpha-Methyl-n-butyl acrylate Natural products CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 9
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical class OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 8
- 239000007764 o/w emulsion Substances 0.000 claims description 4
- 239000004475 Arginine Substances 0.000 claims description 3
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 claims description 3
- 229940072113 onion extract Drugs 0.000 claims 2
- 229940064064 purslane extract Drugs 0.000 claims 2
- -1 chlorohydroxyaluminum Chemical compound 0.000 description 41
- 238000000354 decomposition reaction Methods 0.000 description 27
- 235000014113 dietary fatty acids Nutrition 0.000 description 23
- 239000000194 fatty acid Substances 0.000 description 23
- 229930195729 fatty acid Natural products 0.000 description 23
- 239000000178 monomer Substances 0.000 description 23
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 16
- 239000003921 oil Substances 0.000 description 16
- 235000019198 oils Nutrition 0.000 description 15
- 150000004665 fatty acids Chemical class 0.000 description 13
- 150000003839 salts Chemical class 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 11
- 238000009472 formulation Methods 0.000 description 11
- 125000004432 carbon atom Chemical group C* 0.000 description 10
- 239000012071 phase Substances 0.000 description 9
- 239000004615 ingredient Substances 0.000 description 8
- 239000004094 surface-active agent Substances 0.000 description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 7
- 230000003110 anti-inflammatory effect Effects 0.000 description 7
- 239000008346 aqueous phase Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000002562 thickening agent Substances 0.000 description 7
- 229920001499 Heparinoid Polymers 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 150000001298 alcohols Chemical class 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 239000003814 drug Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000002554 heparinoid Substances 0.000 description 6
- 229920001451 polypropylene glycol Polymers 0.000 description 6
- 150000005846 sugar alcohols Polymers 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 230000002401 inhibitory effect Effects 0.000 description 5
- 239000012669 liquid formulation Substances 0.000 description 5
- 230000003020 moisturizing effect Effects 0.000 description 5
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 5
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 4
- 239000010775 animal oil Substances 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 4
- 239000004359 castor oil Substances 0.000 description 4
- 235000019438 castor oil Nutrition 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000006071 cream Substances 0.000 description 4
- 229940079593 drug Drugs 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 4
- 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 4
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 4
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 4
- 239000006210 lotion Substances 0.000 description 4
- 239000002736 nonionic surfactant Substances 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- 210000003491 skin Anatomy 0.000 description 4
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229920002683 Glycosaminoglycan Polymers 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 229920002125 Sokalan® Polymers 0.000 description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 3
- 230000001139 anti-pruritic effect Effects 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 description 3
- 239000008158 vegetable oil Substances 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- GHOKWGTUZJEAQD-ZETCQYMHSA-N (D)-(+)-Pantothenic acid Chemical compound OCC(C)(C)[C@@H](O)C(=O)NCCC(O)=O GHOKWGTUZJEAQD-ZETCQYMHSA-N 0.000 description 2
- WNWHHMBRJJOGFJ-UHFFFAOYSA-N 16-methylheptadecan-1-ol Chemical compound CC(C)CCCCCCCCCCCCCCCO WNWHHMBRJJOGFJ-UHFFFAOYSA-N 0.000 description 2
- LVYLCBNXHHHPSB-UHFFFAOYSA-N 2-hydroxyethyl salicylate Chemical compound OCCOC(=O)C1=CC=CC=C1O LVYLCBNXHHHPSB-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 2
- 239000004166 Lanolin Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 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
- RUYKUXOULSOEPZ-UHFFFAOYSA-N [2-hydroxy-3-(2-methylprop-2-enoyloxy)propyl]-trimethylazanium Chemical compound CC(=C)C(=O)OCC(O)C[N+](C)(C)C RUYKUXOULSOEPZ-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000008051 alkyl sulfates Chemical class 0.000 description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- YKPUWZUDDOIDPM-SOFGYWHQSA-N capsaicin Chemical compound COC1=CC(CNC(=O)CCCC\C=C\C(C)C)=CC=C1O YKPUWZUDDOIDPM-SOFGYWHQSA-N 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 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 2
- 150000001875 compounds Chemical class 0.000 description 2
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 2
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 2
- 229940043276 diisopropanolamine Drugs 0.000 description 2
- NOPFSRXAKWQILS-UHFFFAOYSA-N docosan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCCCCCO NOPFSRXAKWQILS-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 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
- 238000004945 emulsification Methods 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 229940025770 heparinoids Drugs 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- JYGXADMDTFJGBT-VWUMJDOOSA-N hydrocortisone Chemical compound O=C1CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 JYGXADMDTFJGBT-VWUMJDOOSA-N 0.000 description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 2
- CGIGDMFJXJATDK-UHFFFAOYSA-N indomethacin Chemical compound CC1=C(CC(O)=O)C2=CC(OC)=CC=C2N1C(=O)C1=CC=C(Cl)C=C1 CGIGDMFJXJATDK-UHFFFAOYSA-N 0.000 description 2
- 230000007794 irritation Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 235000019388 lanolin Nutrition 0.000 description 2
- 229940039717 lanolin Drugs 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- CKFGINPQOCXMAZ-UHFFFAOYSA-N methanediol Chemical compound OCO CKFGINPQOCXMAZ-UHFFFAOYSA-N 0.000 description 2
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 229940080236 sodium cetyl sulfate Drugs 0.000 description 2
- 229940057950 sodium laureth sulfate Drugs 0.000 description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 2
- URLJMZWTXZTZRR-UHFFFAOYSA-N sodium myristyl sulfate Chemical compound CCCCCCCCCCCCCCOS(O)(=O)=O URLJMZWTXZTZRR-UHFFFAOYSA-N 0.000 description 2
- 229950005425 sodium myristyl sulfate Drugs 0.000 description 2
- SXHLENDCVBIJFO-UHFFFAOYSA-M sodium;2-[2-(2-dodecoxyethoxy)ethoxy]ethyl sulfate Chemical compound [Na+].CCCCCCCCCCCCOCCOCCOCCOS([O-])(=O)=O SXHLENDCVBIJFO-UHFFFAOYSA-M 0.000 description 2
- GGHPAKFFUZUEKL-UHFFFAOYSA-M sodium;hexadecyl sulfate Chemical compound [Na+].CCCCCCCCCCCCCCCCOS([O-])(=O)=O GGHPAKFFUZUEKL-UHFFFAOYSA-M 0.000 description 2
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- PRAKJMSDJKAYCZ-UHFFFAOYSA-N squalane Chemical compound CC(C)CCCC(C)CCCC(C)CCCCC(C)CCCC(C)CCCC(C)C PRAKJMSDJKAYCZ-UHFFFAOYSA-N 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 2
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- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 description 1
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- OHILSKSRDDTCIR-WKSAPEMMSA-N (8s,9r,10s,11s,13s,14s,16r,17r)-9-fluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one;hydrochloride Chemical compound Cl.C1CC2=CC(=O)C=C[C@]2(C)[C@]2(F)[C@@H]1[C@@H]1C[C@@H](C)[C@@](C(=O)CO)(O)[C@@]1(C)C[C@@H]2O OHILSKSRDDTCIR-WKSAPEMMSA-N 0.000 description 1
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 1
- FCAXDVKLWVSHGT-KVVVOXFISA-N (z)-docos-13-enoic acid;propane-1,2,3-triol Chemical compound OCC(O)CO.CCCCCCCC\C=C/CCCCCCCCCCCC(O)=O FCAXDVKLWVSHGT-KVVVOXFISA-N 0.000 description 1
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 1
- JLPAMKUIIFHLBH-UHFFFAOYSA-N 1,2-dihydroxypropane-1-sulfonic acid Chemical compound CC(O)C(O)S(O)(=O)=O JLPAMKUIIFHLBH-UHFFFAOYSA-N 0.000 description 1
- 229940058015 1,3-butylene glycol Drugs 0.000 description 1
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 description 1
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Landscapes
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Description
項1. (A)アラントイン及び/又はその誘導体、(B)ヘパリン類似物質、(C)ホスホコリン基含有重合体、並びに(D)アミン系アルカリ剤を含有する、乳化組成物。
項2. 前記(D)アミン系アルカリ剤が、アルカノールアミン及び/又はアルギニンである、項1に記載の乳化組成物。
項3. 前記(C)ホスホコリン基含有重合体が、2-メタクリロイルオキシエチルホスホリルコリン・メタクリル酸ブチル共重合体である、項1又は2に記載の乳化組成物。
項4. pHが5~7である、項1~3のいずれかに記載の乳化組成物。
項5. 水中油型の乳化形態である、項1~4のいずれかに記載の乳化組成物。
項6. アラントイン及び/又はその誘導体、並びにヘパリン類似物質を含む乳化組成物におけるアラントイン及び/又はその誘導体の安定化方法であって、
乳化組成物中に、(A)アラントイン及び/又はその誘導体、並びに(B)ヘパリン類似物質と共に、(C)ホスホコリン基含有重合体、及び(D)アミン系アルカリ剤を配合する、前記安定化方法。
本発明の乳化組成物は、アラントイン及び/又はその誘導体((A)成分と表記することもある)、ヘパリン類似物質((B)成分と表記することもある)、ホスホコリン基含有重合体((C)成分と表記することもある)、並びにアミン系アルカリ剤((D)成分と表記することもある)を含有することを特徴とする。本発明の乳化組成物では、アラントイン及び/又はその誘導体、並びにヘパリン類似物質と共に、ホスホコリン基含有重合体及びアミン系アルカリ剤を含むことにより、乳化組成物中でアラントイン及び/又はその誘導体とヘパリン類似物質とが共存することにより生じるアラントイン及び/又はその誘導体の分解を抑制し、優れた製剤安定性を備えることが可能になっている。以下、本発明の乳化組成物について詳述する。
アラントインは、5-ウレイドヒダントインとも称される化合物であり、組織修復賦活作用、抗炎症作用、鎮痒作用等を有することが知られている公知の薬剤である。
ヘパリン類似物質は、コンドロイチン多硫酸等の多硫酸化ムコ多糖であり、保湿作用、抗炎症作用、血行促進作用等を有することが知られている公知の薬剤である。
ホスホコリン基含有重合体とは、ホスホコリン基を含む単量体(以下、「ホスホコリン基含有単量体」と表記することがある)が重合したポリマーであり、保湿作用等を有する公知の成分である。
アミン系アルカリ剤とは、アンモニア、第1級アミン、又は第2級アミンから水素原子を除去した1価の官能基を有し、水中でアルカリ性を示す成分である。本発明の乳化組成物において、アミン系アルカリ剤は、アラントイン及び/又はその誘導体の分解抑制に寄与すると共に、乳化組成物のpHを後述する範囲に調整する役割も果たす。
本発明の乳化組成物は、前記(A)~(D)成分に加えて、必要に応じてアニオン性界面活性剤((E)成分と表記することもある)を含んでいてもよい。アニオン性界面活性剤を含む場合には、アラントイン及び/又はその誘導体の安定化効果をより一層向上させることが可能になる。
[水]
本発明の乳化組成物は、乳化された状態で水相を形成するために、水を含有する。
本発明の乳化組成物は、乳化された状態で油相を形成するために、油分を含有する。
本発明の乳化組成物には、必要に応じて、アニオン性界面活性剤以外の界面活性剤が含まれていてもよい。このような界面活性剤としては、薬学的又は香粧学的に許容されることを限度として特に制限されないが、例えば、ノニオン性界面活性剤、カチオン性界面活性剤、両性界面活性剤等が挙げられる。これらの界面活性剤の中でも、乳化安定性並びにアラントイン及び/又はその誘導体の安定化効果をより一層向上させるという観点から、好ましくはノニオン性界面活性剤が挙げられる。
本発明の乳化組成物は、保湿作用の増強等を目的として、必要に応じて、多価アルコールが含まれていてもよい。
本発明の乳化組成物は、前述する成分の他に、粘性の調節等のために、必要に応じて、増粘剤が含まれていてもよい。
本発明の乳化組成物は、前述する成分の他に、薬学的又は香粧学的な生理機能を発揮できる薬効成分が、必要に応じて、含まれていてもよい。このような薬効成分としては、例えば、ステロイド剤(デキサメタゾン、塩酸デキサメタゾン、酢酸デキサメタゾン、塩酸ヒドロコルチゾン、吉草酸プレドニゾロン、酢酸プレドニゾロン等)、抗ヒスタミン剤(ジフェンヒドラミン、塩酸ジフェンヒドラミン、マレイン酸クロルフェニラミン等)、局所麻酔剤(リドカイン、ジブカイン、プロカイン、テトラカイン、ブピパカイン、メピパカイン、クロロプロカイン、プロパラカイン、メプリルカイン又はこれらの塩、安息香酸アルキルエステル(例えばアミノ安息香酸エチル、塩酸パラブチルアミノ安息香酸ジエチルアミノエチル)、オルソカイン、オキセサゼイン、オキシポリエントキシデカン、ロートエキス、ペルカミンパーゼ、テシットデシチン等)、抗炎症剤(アラントイン、サリチル酸、サリチル酸グリコール、サリチル酸メチル、インドメタシン、フェルビナク、ジクロフェナクナトリウム、ロキソプロフェンナトリウム等)、殺菌剤(塩化ベンザルコニウム、塩化デカリニウム、塩化ベンゼトニウム、塩化セチルピリジニウム、イソプロピルメチルフェノール、塩酸クロルヘキシジン、グルコン酸クロルヘキシジン、アンモニア水、スルファジアジン、乳酸、フェノール等)、鎮痒剤(クロタミトン、チアントール等)、皮膚保護剤(コロジオン、ヒマシ油等)、血行促進成分(ノニル酸ワニリルアミド、ニコチン酸ベンジルエステル、カプサイシン、トウガラシエキス等)、ビタミン類(ビタミンA,B,C,D等)、ムコ多糖類(コンドロイチン硫酸ナトリウム、グルコサミン、ヒアルロン酸等)等が挙げられる。これらの薬効成分は、1種単独で使用してもよく、また2種以上を組み合わせて使用してもよい。また、本発明の乳化組成物において、これらの薬効成分を含有させる場合、その含有量については、使用する薬効成分の種類、期待する効果等に応じて適宜設定すればよい。
本発明の乳化組成物は、前述する成分の他に、必要に応じて、外用剤に通常使用される他の添加剤が含まれていてもよい。このような添加剤としては、例えば、緩衝剤、可溶化剤、キレート剤、防腐剤、保存剤、酸化防止剤、安定化剤、キレート剤、香料、着色料等が挙げられる。本発明の乳化組成物において、これらの添加剤を含有させる場合、その含有量については、使用する添加剤の種類等に応じて適宜設定すればよい。
本発明の乳化組成物のpHは、前記「(D)アミン系アルカリ剤」の欄に示す範囲に設定すればよい。
本発明の乳化組成物は、水中油型又は油中水型のいずれの乳化形態であってもよいが、好ましくは水中油型が挙げられる。また、本発明の乳化組成物は、各含有成分が可溶化された状態になっていてもよい。
本発明の乳化組成物は、公知の乳化組成物の製造方法に従って製造することができる。本発明の乳化組成物の製造方法として、例えば、以下に示す方法が挙げられる。先ず、(A)成分、(B)成分、(C)成分、水、及び必要に応じて添加される他の水溶性成分を混合して水相用組成物を調製する。別途、油分、及び必要に応じて添加される他の水溶性成分を混合して油相用組成物を調製する。なお、(E)成分、及び(E)成分以外の界面活性剤は、水相用組成物又は油相用組成物のいずれか一方又は双方に添加して混合すればよいが、油相用組成物に添加することが好ましい。次いで、得られた水相用組成物と油相用組成物を混合し、ホモジナイザー等の乳化手法によって乳化させる。その際、水相用組成物は2以上に分けて調製し、段階的に油相用組成物と混合して乳化させてもよい。その後、(D)成分を所定量添加して所望のpHに調整することにより、本発明の乳化組成物が製造される。
本発明は、更に、アラントイン及び/又はその誘導体、並びにヘパリン類似物質を含む乳化組成物におけるアラントイン及び/又はその誘導体の安定化方法であって、乳化組成物中に、(A)アラントイン及び/又はその誘導体、並びに(B)ヘパリン類似物質と共に、(C)ホスホコリン基含有重合体、及び(D)アミン系アルカリ剤を配合することを特徴とする、安定化方法を提供する。
表1に示す組成の水中油型乳化組成物(クリーム剤、実施例1~9及び比較例1~5)、及び液剤(参考例1)を製造し、アラントインの分解抑制効果について評価した。具体的な試験方法は、以下の通りである。
先ず、表1中の(I)に示す成分を混合して溶解させ、水相用組成物を調製した。また、別途、表1中の(II)及び(III)に示す成分を加熱しながら混合して溶解させて油相用組成物を調製した。次いで、水相用組成物及び油相用組成物をそれぞれ80℃に加熱した状態で混合し、ホモジナイザーを用いて乳化した。乳化後、表1中の(IV)に示す成分を添加し、pH5.5に調整した後に、室温まで冷却し、水中油型乳化組成物を得た。
表1に示す各成分を所定量混合し、液剤を製造した。
得られた乳化組成物及び液剤について、製造直後と、製造後50℃で30日間遮光条件で保存した後に、アラントインの含有量を高速液体クロマトグラフィー(カラム:PC HILIC S5 4.6mm×250mm(株式会社資生堂製)、移動相:アセトニトリル/水=80/20、流速:1.0mL/min、カラム温度:40℃、測定波長:210nm)を使用して測定した。測定したアラントインの含有量から、以下の式に従って、アラントインの分解率(%)を算出し、下記判定基準に従ってアラントインの分解抑制効果を評価した。
◎:アラントインの分解率が0~3.9%
○:アラントインの分解率が4.0~5.9%
△:アラントインの分解率が6.0~7.9%
×:アラントインの分解率が8%以上
得られた結果を表1に示す。アラントイン及びヘパリン類似物質を含有する組成物において、pH5.5の液剤ではアラントインは安定であったが(参考例1:分解率は3.0%であった)、乳化形態にすると、アラントインの分解が認められた(比較例1~5:分解率は8.0~11.4%であった)。また、アラントイン及びヘパリン類似物質を含有する乳化組成物において、2-メタクリロイルオキシエチルホスホコリン・メタクリル酸ブチル共重合体を含有させた場合でも、アルカリ剤として水酸化カリウムを含有させると、アラントインの分解が認められた(比較例5)。これに対して、アラントイン及びヘパリン類似物質を含有する乳化組成物において、2-メタクリロイルオキシエチルホスホコリン・メタクリル酸ブチル共重合体と共に、アルカリ剤としてアミン系アルカリ剤を含有させると、アラントインの分解を抑制でき、アラントインの安定化が図られていた(実施例1~9:実施例1の分解率は4.0%、実施例8の分解率は4.2%であった)。また、アニオン性界面活性剤を更に含有させると、アラントインの分解抑制効果がより一層向上していた(実施例2~7及び9:分解率は1.8~3.4%であった)。
表2に示す組成の水中油型乳化組成物(クリーム剤)(処方例1~18)及びローション液(処方例19及び20)を調製した。得られた水性製剤について、前記試験例と同様の方法でアラントインの分解抑制効果を評価したところ、いずれもアラントインの分解率が低く、アラントインの安定性が向上していた。
Claims (6)
- (A)アラントイン及び/又はその誘導体、(B)ヘパリン類似物質、(C)ホスホコリン基含有重合体、並びに(D)アミン系アルカリ剤を含有する、乳化組成物(但し、たまねぎ抽出物を含む場合、及びスベリヒユ抽出エキスを含む場合を除く)。
- 前記(D)アミン系アルカリ剤が、アルカノールアミン及び/又はアルギニンである、請求項1に記載の乳化組成物。
- 前記(C)ホスホコリン基含有重合体が、2-メタクリロイルオキシエチルホスホリルコリン・メタクリル酸ブチル共重合体である、請求項1又は2に記載の乳化組成物。
- pHが5~7である、請求項1~3のいずれかに記載の乳化組成物。
- 更に(E)アニオン性界面活性剤を含み、且つ水中油型の乳化形態である、請求項1~4のいずれかに記載の乳化組成物。
- アラントイン及び/又はその誘導体、並びにヘパリン類似物質を含む乳化組成物(但し、たまねぎ抽出物を含む場合、及びスベリヒユ抽出エキスを含む場合を除く)におけるアラントイン及び/又はその誘導体の安定化方法であって、
乳化組成物中に、(A)アラントイン及び/又はその誘導体、並びに(B)ヘパリン類似物質と共に、(C)ホスホコリン基含有重合体、及び(D)アミン系アルカリ剤を配合する、前記安定化方法。
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