Patent ID: 8853322

Claim:
A water-dispersible, cyclocarbonate-functionalized vinyl copolymer binder having structural groups derived from i) at least one vinyl monomer (I) having at least one cyclic carbonate group, ii) at least one vinyl monomer (II) having at least one emulsifier group and iii) optionally at least one copolymerizable vinyl monomer (III), which differs from the monomers (I) and (II), wherein the vinyl monomer (I) is in which R 1 is H or CH 3 ; R 2 is H, alkyl, aryl, aralkyl or alkaryl; and X is alkylene, arylene, aralkylene or alkarylene, and the vinyl monomer (II) is a compound of the formula (IV): in which R 1 is H or CH 3 ; R 3 is H or alkyl; Y is O, CH 2 , CH 2 O, NH or CH 2 NH; Z is SO 3 (−) or N(CH 3 ) 3 (−) ; m is 1; and n is 0 to 10.