Emulsifier composition
AssigneeLoire Cosmetics Co., Ltd.
InventorsYoshiro Ootsu, Yaeno Arima
Life of this patent
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Abstract
Emulsifier composition which comprises a condensation product of a fatty acid and a basic amino acid, and at least one secondary compound selected from the group consisting of a sterol compound, a fatty acid ester of polyhydric alcohol, a diol compound having hydroxyl groups at .alpha. and .beta. positions, a glycerophosphoric acid ester and a higher alcohol. Various creams and lotions can readily be prepared using the emulsifier composition.
Claims13
A stable emulsifier composition which comprises an interfacial complex comprising the reaction product of (a) a condensation product of a fatty acid selected from the group consisting of stearic acid, oleic acid, and myristic acid, and a basic amino-acid selected from the group consisting of arginine, lysine, .beta.-lysine, and hydroxylsine, and (b) a secondary compound selected from the group consisting of a sterol compound, a fatty acid ester of a polyhydric alcohol, a diol compound having hydroxyl groups at the .alpha. and .beta. positions, a glycerophosphoric acid ester, a higher alcohol and mixtures thereof, said condensation products and said secondary compound being at a weight ratio ranging from 20:1 to 1:20, and said composition being non-irritating to the skin.
A method of preparing a stable emulsifier composition which comprises reacting a fatty acid selected from the group consisting of stearic acid, oleic acid and myristic acid, and a basic amino-acid selected from the group consisting of arginine, lysine, .beta.-lysine, and hydroxylysine, to form a condensation product, and reacting the condensation product with a secondary compound selected from the group consisting of a sterol compound, a fatty acid ester of a polyhydric alcohol, a diol compound having hydroxyl groups at the .alpha. and .beta. positions, a glycerophosphoric acid ester, a higher alcohol and mixtures thereof, said condensation product and said secondary compound being at a weight ratio ranging from 20:1 to 1:20, to form an interfacial complex, said emulsifier composition being non-irritating to the skin.
Dependencies are inferred from the claim text.