Use of acrylic copolymers in cosmetics and compositions used

Abstract

The subject of the present invention is the use, in, and for the preparation of, cosmetic or dermatological compositions, of a copolymer which can be obtained by copolymerization of a monomer mixture comprising: (a) from 5 to 25% by weight of at least one monomer (A) with ethylenic unsaturation containing at least one carboxylic acid function; (b) from 3 to 30% by weight of at least one monomer (B) of formula (I): H.sub.2 C=C(R.sub.1)--COOR.sub.2 (I) in which R.sub.1 denotes a hydrogen atom or a methyl radical, R.sub.2 denotes a saturated or unsaturated, linear or branched or cyclic alkyl radical or an aromatic radical, having from 8 to 40 carbon atoms, (c) at least one monomer (C) chosen from the group consisting of tert-butyl methacrylate, tert-butyl acrylate and mixtures thereof, in a proportion greater than 50%, such that the glass transition (Tg) of the polymer is greater than or equal to 15.degree. C., the weight percentages being calculated relative to the total amount of monomers used, as well as to the cosmetic or dermatological compositions used.

Dependencies are inferred from the claim text.