Patent ID: 6043329
Filing Date: 2000-03-28
Classification: C04B,C08F

Abstract:
Polymers obtained by reacting one or more monomers selected from the group consisting of compounds of formulae I and II:CH.sub.2 .dbd.C(R.sub.1)--CO--OR.sub.2 I)CH.sub.2 .dbd.C(R.sub.1)--CO--OR.sub.3 II)whereineach R.sub.1 independently represents H or CH.sub.3,R.sub.2 represents H or a cation of Na, Li, 1/2Ca or C.sub.1 - to C.sub.3 -alkylamine,R.sub.3 represents a hydroxyalkyl group --(CH.sub.2).sub.x OH with x=2 to 10,with one or more monomers of formula IIIR.sub.4 --O--R.sub.5 --CO--NH--R.sub.6 III)whereinR.sub.4 represents H or a group of the following formulae: ##STR3## wherein R.sub.1 represents H or CH.sub.3,R.sub.5 represents an oxyalkenyl group of the following formula:--(CHR.sub.1 --CH.sub.2 --O).sub.m --or--(CHR.sub.1 --CH.sub.2 --O).sub.m1 --(CH.sub.2 --CH.sub.2 --O).sub.n --whereinR.sub.1 represents H or CH.sub.3 andwith m=15 to 30, m1=5 to 15 and n=2 to 6R.sub.6 represents a C.sub.1 - to C.sub.8 -alkyl group, a C.sub.5 - to C.sub.7 -cycloalkyl group, or a phenyl group,and optionally with one or more monomers selected from the group consisting of compounds of formulae IV or VCH.sub.2 .dbd.CR.sub.1 --R.sub.7 IV)whereinR.sub.1 represents H or CH.sub.3 andR.sub.7 represents a sulfonic group --SO.sub.3 H,or a phenyl sulfonic group --C.sub.6 H.sub.4 --SO.sub.3 H,or a 2-amido-2-methyl-1-propanesulfonic group of the following formula:--CO--NH--C(CH.sub.3).sub.2 --CH.sub.2 --SO.sub.3 R.sub.2wherein R.sub.2 represents H or a cation of Na, Li, 1/2Ca or C.sub.1 -C.sub.3 alkylamine or a sulfoalkylcarboxylic ester group of the formula--(CO)O--R--SO.sub.3 R.sub.2with R.sub.2 representing H or a cation of Na, Li, 1/2Ca or C.sub.1 -C.sub.3 alkylamine and R representing a C.sub.1 - to C.sub.5 -alkyl group ,CH.sub.2 .dbd.C(R.sub.1)--CO--O--R.sub.8 --R.sub.9 V)whereinR.sub.8 represents a polyoxyethylene chain--(C/--CH.sub.2 --CH.sub.2 --O--).sub.n1 --with n1 being an integer from 2 to 50,R.sub.9 represents H or CH.sub.3.