AQUEOUS SOLUTIONS OR DISPERSIONS OF COPOLYMERS

摘要

Aqueous solutions or dispersions of copolymers obtainable by the radical copolymerisation of A1) 50 to 60 mol% C6 to C40 mono-olefines or C6 to C40 alkyl vinyl ethers or mixtures of C6 to C40 alkyl vinyl ethers and up to 50 mol%, in relation to the entire quantity of the component A1, C6 to C40 monoolefines with B1) 60 to 40 mol% of monoethylenically unsaturated C4-C8 dicarboxylic acid anhydrides, or by the radical copolymerisation of A2) 50 to 90 wt % C6 to C40 alkyl acrylates or methyl acrylates or vinyl esters of C6 to C40 carboxylic acids or mixtures thereof with B2) 10 to 50 wt % of monoethylenically unsaturated C3 to C12 carboxylic acids, monoethylenically unsaturated C4 to C12 dicarboxylic acid anhydrides, semi-ester or semi-amides of monoethylenically unsaturated C4 to C12 dicarboxylic acids, amides of monoethylenically unsaturated C3 to C12 carboxylic acids or mixtures thereof, to form copolymers with molar masses of 500 to 30,000 whereby the carboxyl groups present in an aqueous medium are at least partly neutralised and part of the carboxyl groups may be amidated, and which are characterised by an emulsifier content of 0.5 to 40 wt % in relation to the quantity of copolymer. These aqueous solutions or dispersions are suitable for stuffing and fulling leathers and fur pelts.