Use of copolymerisates based on long chain unsaturated esters and ethylenically unsaturated carbonic acids for hydrophobing of leather and fur pelts

摘要

Use of copolymers that contain as copolymerised units … …  a) from 50 to 90 % by weight of C8-C40-alkyl (meth)acrylates, vinyl esters of C8-C40-carboxylic acids or mixtures thereof and …  b) from 10 to 50 % by weight of monoethylenically unsaturated C3-C12-carboxylic acids, monoethylenically unsaturated dicarboxylic anhydrides, monoesters or monoamides of monoethylenically unsaturated C4-C12-dicarboxylic acids, amides of C3-C12-monocarboxylic acids or mixtures thereof and have molecular weights of from 500 to 30,000 g per mole, in at least partially neutralised form in aqueous solution or in aqueous dispersion for waterproofing leathers and fur pelts. …