Patent ID: 7279153

Claim:
An alcoholic, aqueous or aqueous-alcoholic hair treatment composition for fixing hair with improved permanence, said hair treatment composition consisting essentially of: from 1 to 15 percent by weight of a film-forming, hair-fixing amphoteric copolymer, which is 50 to 100% neutralized and which comprises an alkylacrylamide, an alkylaminoalkylmethacrylate, and two or more monomers, said two or more monomers being selected from the group consisting of acrylic acid, methacrylic acid, alkyl esters of acrylic acid and alkyl esters of methacrylic acid, at least one of the two or more monomers containing an acid group and said alkyl groups in said two or more monomers containing from one to ten carbon atoms; from 0.01 to 5 percent by weight of a film-forming, hair-fixing anionic copolymer, which is 50 to 100% neutralized and which comprises at least one first monomer, which is acrylic acid and/or methacrylic acid, and at least one second monomer, which is an acrylic acid alkyl ester, a methacrylic acid alkyl ester, acrylamide and/or methacrylamide, and in which the alkyl groups have from 1 to 5 carbon atoms; from 0.01 to 5 percent by weight of a polyvinyl pyrrolidone/vinyl acetate copolymer; and a solvent comprising water and/or an alcohol with 1 to 4 carbon atoms, said solvent containing up to 10 percent by weight of said water; wherein an amount ratio of said amphoteric copolymer to said anionic copolymer is from 20:1 to 150:1 and an amount ratio of said anionic copolymer to said polyvinyl pyrrolidone/vinyl acetate copolymer is from 0.5:1 to 2:1.