Patent ID: 6132705
Filing Date: 2000-10-17
Classification: A61K,A61Q

Abstract:
A cosmetic or pharmaceutical composition having an increased water resistance, and being adapted for the treatment of skin, comprising, in addition to at least one conventional cosmetic or pharmaceutical ancillary substance, an effective amount of at least one polymer or copolymer composed ofa) from 40 to 100% by weight of at least one C.sub.1 -C.sub.30 (meth)acrylic ester as monomer A,b) from 0 to 30% by weight of at least one water soluble monomer capable of free-radical copolymerization as monomer B,c) from 0 to 40% by weight of at least one (meth)acrylamide which is capable of free-radical copolymerization and is unsubstituted or N-substituted by C.sub.1 -C.sub.18 -alkyl or hydroxyalkyl as monomer C, andd) from 0 to 30% by weight of at least one monomer capable of free-radical copolymerization selected from the group consisting of C.sub.1 -C.sub.30 vinyl esters, C.sub.1 -C.sub.30 vinyl ethers and vinyl aromatic compounds as monomer D,which polymer or copolymer is obtainable by free-radical emulsion or suspension polymerization in the presence of at least one chain-transfer reagent, and where the polymer or copolymer has a glass transition temperature above -35.degree. C. and a content of organic volatile constituents .ltoreq.0.5% by weight, as a wet substantivity increasing agent.