Patent ID: 8858653

Claim:
An agent for coloring keratinic fibers included in a cosmetic carrier, the agent comprising: at least one cationic acrylic acid ester copolymer including at least one structural unit of the general formula (I), at least one structural unit of the general formula (II), and at least one structural unit of the general formula (III), in which: R1, R2, R3, R4, and R6 mutually independently denote a hydrogen atom or a C 1 to C 6 alkyl group, R5, R5′, R5″ mutually independently denote a C 1 to C 20 alkyl group, a C 2 to C 6 alkenyl group, or a C 2 to C 6 hydroxyalkyl group, R7 denotes a C 1 to C 6 alkyl group, a C 2 to C 6 hydroxyalkyl group, or a C 2 to C 6 polyhydroxyalkyl group, n denotes an integer from 1 to 50,000, m denotes an integer from 2 to 6, and X − denotes a physiologically acceptable anion, and at least one color-changing compound.