Pigment preparations

Abstract

Pigment preparations containing 2-70 % by weight, relative to the total preparation, of an inorganic or organic pigment dispersed in a solution of 10 to 49% by weight, relative to the total preparation, of a water-insoluble copolymer in an organic solvent, the copolymer containing 40-60% by weight of acrylic acid ethyl ester, 30-50% by weight of methacrylic acid methyl ester and 5-15 % by weight of acrylic acid hydroxyethyl and/or hydroxypropyl ester or methacrylic acid hydroxyethyl and/or hydroxypropyl ester and being prepared at 50.degree.-170.degree. C. in the presence of 0.5-5.0% by weight, relative to the sum of the monomers, of an organic per-compound or an azo compound which supplies free radicals at 50.degree.-170.degree. C., in an organic solvent, and their use for pigmenting dressing agents for leather and imitation leathers.

Dependencies are inferred from the claim text.