Patent ID: 7597898

Claim:
An aerosol or pump foam product for treating hair, said product comprising a container and a foamable composition contained in the container, wherein said foamable composition consists of: from 0.5 to 5 percent by weight of a copolymer of hydroxyethylcellulose and diallyldimethylammonium chloride with a molecular weight between 100,000 and 600,000 g/mol; from 0.5 to 5 percent by weight of at least one partially neutralized chitosan with a molecular weight from 20,000 to 5,000,000 g/mol, a neutralization degree of at least 50%, and a deacetylation degree of from 10 to 100%; at least one organic acid for partially neutralizing said at least one chitosan in an amount necessary for partially neutralizing said at least one chitosan, said at least one organic acid being selected from the group consisting of pyrrolidone carboxylic acid, formic acid, and lactic acid; from 50 to 98 percent by weight of a solvent system, said solvent system consisting of water or consisting of an aqueous-alcoholic medium containing at least 50 percent by weight water and at least 5 percent by weight of ethanol and/or isopropanol; from 0.05 to 10 percent by weight of at least one surfactant, wherein said at least one surfactant comprises a fatty alcohol ethoxylate and a cationic surfactant selected from the group consisting of alkyldimethylammonium chlorides, alkyldimethylammonium bromides, alkyltrimethylammonium chlorides, and alkyltrimethylammonium bromides, wherein the alkyl groups have from 1 to 22 carbon atoms; and at least one cosmetic ingredient selected from the group consisting of a direct dye compound, a perfume oil, a preservative, and a buffer substance; wherein said perfume oil is contained in the foamable composition in an amount of from 0.01 to 0.5 percent by weight when present in the composition, said buffer substance is contained in the foamable composition in an amount of from 0.1 to 1.0 percent by weight when present in the composition, said preservative is contained in the foamable composition in an amount of from 0.01 to 1.0 percent by weight when present in the composition, and said direct dye compound is contained in the foamable composition in an amount of from 0.01 to 4.0 percent by weight when present in the composition; wherein the copolymer and said at least one chitosan are present in the foamable composition in a weight ratio of from 1:2 to 1.5:1, and wherein the container is either a pressure-resistant container containing at least one propellant in addition to said foamable composition or is a pump foam container provided with a mechanical device for foam production without a propellant.