Patent ID: 8822592

Claim:
A water-borne emulsion polymer consisting of as copolymerized units the following monomers: (A) an ethylenically unsaturated monomer containing at least one amino group; (B) styrene; (C) a hydroxy- or alkoxyalkyl(meth)acrylate of the formula CH 2 ═CH(R 1 )—COO—C t H 2t —OR 2 wherein R 1 is hydrogen or methyl and R 2 is hydrogen or C 1 -C 6 alkyl and t is an integer of 2, 3, 4, 5 or 6; and (D) a (poly)alkyleneglycolmono(meth)acrylate of the formula CH 2 ═CH(R 1 )—COO—(C m H 2m O) n—OR 2 wherein R 1 is hydrogen or methyl and R 2 is hydrogen or C 1 -C 6 alkyl and m is an integer of 2 or 3 and n is an integer of 2 to 30.