Abstract:
The invention relates to the use, in cosmetic compositions, of copolymers that can be obtained by copolymerizing at least one ethylenically unsaturated dicarboxylic acid anhydride derived from at least one dicarboxylic acid with 4 to 8 C atoms and at least one oligomer of branched or unbranched C 3 -C 10 alkene. At least one oligomer has a mean molecular weight M n ranging from 300 to 5000 g/mol, preferably up to 1200 g/mol or can be obtained by oligomerizing at least three equivalent C 3 -C 10 alkenes.
Abstract:
The present invention relates to the use of, if appropriate present in the form of an aqueous dispersion, polymers of ethylenically unsaturated anionic monomers for modifying the rheology of aqueous, alcoholic or aqueous/alcoholic cosmetic or dermatological compositions. The polymers are obtainable by free-radical emulsion copolymerization of water-soluble inorganic monomers in aqueous phase in the presence of, in each case, at least one stabilizing polymer of groups a) and b). The emulsion polymers are exceptionally suitable for thickening cosmetic or dermatological preparations based either on water or on alcohols.