COPOLYMERISATES OF VINYL PYRROLIDONE AND VINYL IMIDAZOLE, A PROCESS FOR PRODUCING THEM AND THEIR USE IN DETERGENTS

摘要

Copolymerisates obtainable by radically initiated copolymerisation of mixtures of (a) 20 to 95 % 1-vinyl pyrrolidone, 1-vinyl imidazoles as well as mixtures of 1-vinyl pyrrolidone and/or 1-vinyl imidazoles which can contain up to 20 % by weight of other monoethylenically unsaturated monomers; and (b) 5 to 80 % by weight of water insoluble polymers which contain at least one ethylenically unsaturated double bond and/or one mercapto group in the molecule, processes for producing the copolymerisates by copolymerising compounds of groups (a) and (b) in the quantities indicated in water, alcohols, esters or ketones in the presence of radical-forming initiators, and the use of copolymerisates thus obtainable and of copolymerisates of - 20 to 95 % by weight 1-vinyl pyrrolidone or mixtures of 1-vinyl pyrrolidone with up to 20 % by weight other monoethylenically unsaturated monomers, and - 10 to 80 % by weight styrene as an additive for detergents to inhibit colour transfer during the wash, and detergents containing the copolymerisates mentioned.