Cosmetic Composition Comprising A Grafted Polyhydroxyalkanoate Copolymer In A Fatty Medium

Abstract: The present invention relates to a cosmetic composition comprising a) one or more polyhydroxyalkanoate (PH A) copolymers which contain, and preferably consist of, at least two different repeating polymer units chosen from the units (A) and (B) below, and also the optical or geometrical isomers thereof, the organic or mineral acid or base salts thereof, and the solvates thereof such as hydrates: -[-0-CH(R1)-CH2-C(0)-]- unit (A) -[-0-CH(R2)-CH2-C(0)-]- unit (B) in which polymer units (A) and (B): - R1 represents a hydrocarbon-based chain chosen from i) linear or branched (C5- C28)alkyl, ii) linear or branched (C6-C28)alkenyl, iii) linear or branched (C6-C28)alkynyl; preferably, the hydrocarbon-based group is linear; said hydrocarbon-based chain being optionally substituted and/or interrupted with atoms or groups as described in the description; - R2 represents a cyclic or non-cyclic, linear or branched, saturated or unsaturated hydrocarbon-based group, comprising from 3 to 30 carbon atoms; b) a fatty medium comprising one or more fatty substances which are preferably liquid at 25°C and at atmospheric pressure; it being understood that (A) is different from (B).

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