Patent ID: 8652456

Claim:
An aqueous hair preparation comprising: A) 2 to 20% by weight of at least one water-soluble or water-dispersible copolymer A) with cationogenic groups, which consists essentially of: a) 3 to 15% by weight of N-vinylimidazole, b1) 30 to 70% by weight of N-vinylpyrrolidone, b2) 20 to 35% by weight of methacrylamide, and b3) at least one monomer b3) which is a quaternization product of N-vinylimidazole, whereby the amount of monomer b3) is at most 10% by weight, in copolymerized form; with the proviso that the sum of the amounts of components a) to b3) is 100% by weight; and B) at least one cosmetically acceptable carrier, wherein the pH of the aqueous preparation has a value in the range from pH 4 to pH 6.