Terpolymers, their use in hair-fixing agents with better hold and hair-fixing agents containing them

摘要

Terpolymer, obtainable by free-radical polymerization of 10 to 24% by weight of N-vinylpyrrolidone, 46 to 74% by weight of tert-butyl acrylate or tert-butyl methacrylate and 16 to 30% by weight of acrylic acid or methacrylic acid, and its carboxyl groups, if appropriate are partially or completely neutralized by organic amines, ammonia and / or basic alkali metal compounds and which has a K value of 25 to 65. The terpolymer serves as a film former in hair fixatives.