Patent ID: 6187887
Filing Date: 2001-02-13
Classification: C04B,C08F

Abstract:
Water-soluble or water-swellable copolymers with sulfonic groups, containinga) 3 to 96 mol. % of structural components having the formula I ##STR6##whereR.sup.1 =hydrogen or methyl,R.sup.2, R.sup.3, R.sup.4, independently of one another, are each hydrogen,an aliphatic hydrocarbon radical with 1 to 6 C atoms, or an aryl radical with 6 to 14 C atoms, which may be substituted with C.sub.1 -C.sub.6 alkyl groups,M=hydrogen, a mono- or bivalent metal cation, ammonium and/or an organic amino radical, anda=1/2 or 1,b) 3 to 96 mol. % of structural components having the formula IIa or IIb ##STR7##where R.sup.5 and R.sup.6, independently of one another, are each hydrogen, an aliphatic hydrocarbon radical which may be substituted and has 1-20 C atoms, an alicylic hydrocarbon radical which may be substituted and has 5 to 8 C atoms, or an aryl radical which may be substituted and has 6 to 14 C atoms, andQ=hydrogen or --CHR.sup.5 R.sup.7, and where Q.noteq.H,R.sup.5 and R.sup.6 in IIb together form a --CH.sub.2 --(CH.sub.2).sub.y -methylene group in which y=1 to 4,R.sup.7 =hydrogen, an aliphatic hydrocarbon radical with 1 to 4 C atoms, --COOH or --COOM.sub.a, andR.sup.1, M and a have the meanings already given,c) 0.05 to 75 mol. % of structural components having the formula III ##STR8##whereY=O, NH or NR.sup.5R.sup.8 =R.sup.5 or R.sup.6,X=anion, especially halide, C.sub.1 to C.sub.4 -alkyl sulfate or C.sub.1 to C.sub.4 -alkyl sulfonate,x=1 to 6, andR.sup.1, R.sup.5 and R.sup.6 have the meanings already given,d) 0.01 to 50 mol % of structural components having the formula IV ##STR9##whereZ=--COO(C.sub.m H.sub.2m O).sub.n --R.sup.5 or --(CH.sub.2).sub.p --O(C.sub.m H.sub.2m O).sub.n --R.sup.5,m=2 to 4,n=0 to 200p=0 to 20, andR1 has the meaning already given.