NOVEL OIL-IN-WATER COSMETIC EMULSIONS INCLUDING N-ACYLATED DERIVATIVES HAVING A HIGH MELTING POINT, AND METHODS FOR PREPARING SAME
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United States of America Patent
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Issued Date -
Jun 13, 2013
app pub date -
Sep 20, 2011
filing date -
Sep 30, 2010
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Abandoned
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Abstract
The oil-in-water cosmetic topical emulsion contains: (1) 95 to 50 wt % of an aqueous phase (P1); and (2) 5 to 50 wt % of a fatty phase (P2), wherein the fatty phase (P2) particularly includes: 0.2 to 60 wt %, specifically 2 to 20 wt %, of at least one N-acylated amino acid derivative of formula (I): R1-C(═O)—NH—CH— (R′1)—C(═O)—OH (I), where R1 is a saturated or unsaturated, straight or branched, aliphatic hydrocarbon radical having seven to seventeen carbon atoms, and R′1 is a hydrogen atom or a hydrocarbon radical selected from among methyl, benzyl, isopropyl, 1-methylpropyl, or isobutyl radicals. The method for preparing the oil-in-water cosmetic topical emulsion is also described.
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