Patent ID: 8669337

Claim:
A network polymer composition comprising the reaction product of: i) at least one anionic polymerizable ethylenically unsaturated monomer (I) selected from the group consisting of [CH 2 ═C(R 3 )C(O)OX a (C 2 H 4 O) b (C 3 H 6 O) c (C 4 H 8 O) d ] p P(O)(OY) q (OZ) r where R 3 =H or alkyl of 1 to about 6 carbon atoms; X=alkyl, aryl, or alkaryl diradical connecting group of 1 to about 9 carbon atoms; a is 1 to about 100; b is 0 to about 100; c is 0 to about 100; d is 0 to about 100; q is 0 to about 2; r is 0 to about 2; p is 1 to about 3 subject to the limitation that p+q+r=3; and Y and Z is H, or metal ion; wherein at least one of b, c and d is at least 1; and CH 2 ═C(R 3 )C(O)OX a′ (C 2 H 4 O) b′ (C 3 H 6 O) c′ (C 4 H 8 O) d′ —SO 3 —Y) where R 3 =H or alkyl of from 1 to about 6 carbon atoms; X=alkyl, aryl, or alkaryl diradical connecting group of 1 to about 9 carbon atoms; a′ is 1 to about 100; b′ is 0 to about 100; c′ is 0 to about 100; d′ is 0 to about 100; Y is H, or metal ion; and wherein at least one of b′, c′ and d′ is at least 1; (ii) one or more additional monomers (II) selected from the group consisting of acrylic acid/acrylate, methacrylic acid/methacrylate, acrylamides, vinyl acetate and styrene, which are copolymerizable with (I); (iii) a cross-linking agent (III), containing at least one ethylenically unsaturated group and capable of copolymerizing with (I) and (II) wherein the network polymer is simultaneously polymerized and cross-linked; and, (iv) a thermally activating initiator or redox initiator.