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PRODUCTION D'EMULSIONS A BASE DE CERAMIDES
专利权人:
KAO CORPORATION
发明人:
申请号:
EP02786073.3
公开号:
EP1462081B1
申请日:
2002.12.10
申请国别(地区):
EP
年份:
2012
代理人:
摘要:
Provided is a ceramide emulsion containing the following components (A), (B) and (C) and not containing an acrylic acid polymer or a phospholipid: (A) sphingosines represented by Formula (1): <;CHEM>; (wherein R<;1>; represents a hydrocarbon group having 4 to 30 carbon atoms which is optionally substituted with a hydroxyl group and the like; Y represents CH2, CH or O; X<;1>;, X<;2>; and X<;3>; represent H, a hydroxyl group or an acetoxy group; X<;4>; represents H, an acetyl group or a glyceryl group or, together with an adjacent O atom, forms an oxo group; R<;2>; and R<;3>; represent H, a hydroxyl group, a hydroxymethyl group or an acetoxymethyl group; groups "R"s are H or an amidino group or represent a hydrocarbon group having 1 to 8 carbon atoms which may have a substituent such as a hydroxyl group and the like; and "a" is 2 or 3), (B) an acidic compound selected from inorganic acids and organic acids having a molecular weight of 200 or less, and (C) ceramides represented by Formula (2): <;CHEM>; (wherein R<;7>; represents a hydrocarbon group having 4 to 30 carbon atoms which is optionally substituted with a hydroxyl group and the like; Z represents CH2, CH or O; X<;5>;, X<;6>; and X<;7>; represent H, a hydroxyl group or an acetoxy group, X<;4>; represents H, an acetyl group or a glyceryl group or, together with an adjacent O atom, forms an oxo group; R<;8>; and R<;9>; represent H, a hydroxyl group, a hydroxymethyl group or an acetoxymethyl group; R<;10>; represents a hydrocarbon group having 5 to 60 carbon atoms which is optionally substituted with a hydroxyl group and the like; and R<;11>; represents H or a hydrocarbon group having 1 to 8 carbon atoms which optionally have a substituent such as a hydroxyl group and the like).L'invention concerne des émulsions à base de céramides contenant: (A) des sphingosines présentant une structure spécifique; (B) un composé acide choisi parmi les acid
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