Patent ID: 6015551
Filing Date: 2000-01-18
Classification: A61K,A61Q,B01F,C08F

Abstract:
A copolymer obtained by free-radical polymerization ofA) 70-99.9% by weight of an olefinically unsaturated C.sub.3 -C.sub.5 -monocarboxylic acid, of an olefinically unsaturated C.sub.4 -C.sub.8 -dicarboxylic acid or of its anhydride or of a mixture of such carboxylic acids or carboxylic anhydrides withB) 0.1-30% by weight of one or more polyolefinically unsaturated derivatives of the general formula ##STR5## where Z is a vinyl or allyl group or the structure ##STR6## and R.sup.1, R.sup.2 are identical or different and are hydrogen or methyl,R.sup.3 is hydrogen, methyl or ethyl,R.sup.4 is a mono- or polyolefinically unsaturated C.sub.6 -C.sub.30 -alkenyl or -cycloalkenyl radical with 5 to 8 carbon atoms in the ring or a mono- or diolefinically unsaturated arylalkenyl radical with a total of 9 to 15 carbon atoms,X is oxygen or NH,Y is oxygen, NH or N-alkyl,n is 0 or 1, andC) 0-29.9% by weight of one or more copolymerizable monomers.