MEANS FOR SOFTENING, DUBBING OR HYDROPHOBIC TREATING LEATHER AND FUR SKINS Russian patent published in 1997 - IPC

FIELD: leather and fur industry. SUBSTANCE: leather or fur skins are treated with copolymers containing 20-70 wt % hydrophobic monomer selected from the group including long-chain alpha-olefins, long-chain alkyl metacrylate, long-chain carboxylic acid vinyl esters, long-chain vinyl ethers, and mixtures thereof; 1-60 wt % monomer with special polysiloxane group; and 20-35 wt % water-soluble unsaturated acids, unsaturated C₄-C₆-dicarboxylic acid anhydrides, unsaturated C₄-C₆-dicarboxylic acid half-esters or half-amides or mixtures thereof in partially neutralized state in the form of aqueous solution or dispersion. EFFECT: enhanced efficiency of treatment. 4 cl, 1 tbl