Use of copolymers of N-vinylprrolidone in preparations of water-insoluble substances

摘要

The use of copolymers of A) 60-99 mol % of N-vinylpyrrolidone, and B) 1-40 mol % of a monomer selected from the group of b1) C8-C30-alkyl esters of monoethylenically unsaturated C3-C8-carboxylic acids, b2) N-alkyl- or N,N-dialkyl-substituted amides of acrylic acid or of methacrylic acid with C8-C18-alkyl radicals, or b3) vinyl esters of aliphatic C8-C30-carboxylic acids, or mixtures of these monomers, as surface-active substances in preparations of water-insoluble substances.