Patent ID: 7781529

Claim:
A polymer blend composition having no readily hydrolysable groups comprising: a) a polyelectrolyte copolymer having the general formula: wherein: n=greater than or equal to 1 percent m=less than or equal to 99 percent L=non-perfluorinated alkyl or alkylene-ether linkage L′=a bond or alkyl or alkylene-ether linkage A=a sulfonate, phosphonate or carboxylate B=a group capable of cross-linking, selected from the group consisting of hydroxyl; primary, secondary, and tertiary amines: N-methylol acrylamide; isobutoxy methacrylamide; N-methylenebisacrylamide; allyl groups; styryl groups; glycidyl methacrylate; free and blocked isocyanates, melamines, epoxies, carboxylates, α,ω-dihaloalkanes, α,ω-dialdehydes, carboxylic acids, alkoxy silanes, silicones, aziridines, and carbodiimides; and b) a matrix polymer.