| abstract |
The use of copolymers comprisinga) 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 and methylated N-vinylimidazole or N-vinylformamide andb) 1 to 50% by weight of at least one monomer selected from the group ofb1) C14-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;b5) C8-C30-alkyl vinyl ethersas matrix for producing solid pharmaceutical and cosmetic presentations. |