USE OF HYDROPHOBICALLY MODIFIED COPOLYMERS BASED ON N-VINYL MONOMERS FOR THE PRODUCTION OF MEMBRANES

摘要

The present invention relates to the use of copolymers A containing a) from 50 to 99% by weight of at least one N-vinyllactam or N-vinylamine selected from the group consisting of N-vinylpyrrolidone, N-vinylpiperidone, N-vinylcaprolactam, N-vinylimidazole, methylated N-vinylimidazole, and N-vinylformamide, and b) from 1 to 50% by weight of at least one monomer selected from the group consisting of b₁) C₈-C₃₀-alkyl esters of monoethylenically unsaturated C₃-C₈ carboxylic acids; b₂) N-C₈-C₃₀-alkyl-substituted amides of monoethylenically unsaturated C₃-C₈ carboxylic acids; b₃) N,N-C₈-C₃₀-dialkyl-substituted amides of monoethylenically unsaturated C₃-C₈ carboxylic acids; b₄) vinyl esters of aliphatic C₈-C₃₀ carboxylic acids; and b₅) C₈-C₃₀-alkyl vinyl ethers to produce membranes.