Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1987-03-10
1989-09-12
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
252108, 514785, C07C 6708
Patent
active
048662020
ABSTRACT:
A skin treatment composition comprising a physiologically acceptable carrier and 1-35% by weight of a salt of a monoester of citric acid. The skin treatment composition imparts a pleasant smoothness to the skin and may be incorporated in several products to treat skin dryness. The hydrophobic group having an ester linkage to citric acid has 10 to 18 carbon atoms. Monoester of citric acid may be synthesized with low levels of di- and triester by forming citric acid anhydride and reacting this to form the monoester.
REFERENCES:
patent: 2518678 (1950-08-01), Gooding et al.
patent: 2747979 (1956-05-01), Thompson
patent: 3362923 (1968-01-01), Kruth
patent: 3929712 (1975-12-01), Hiyama et al.
patent: 3971626 (1976-07-01), Heyden et al.
Clarke Vera C.
Lever Brothers Company
Lone Werren B.
McDonald Matthew J.
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