Patent ID: 7544402
Filing Date: 2009-06-09
Classification: B41M,C09D

Abstract:
1. An ink jet recording media system that comprises a support and one or more coating layers thereon, wherein at least one coating layer comprises a zwitterionic copolymer or zwitterionic cooligomer which comprises monomer units derived from at least one zwitterionic monomer selected from the group consisting of N,N-dimethyl-N-methacrylamidopropyl-N-(3-sulfopropyl)-ammonium betaine and N,N-dimethyl-N-methacryloyloxyethyl-N-(3-sulfopropyl)-ammonium betaine, N-methylolacrylamide and at least one further ethylenically unsaturated monomer selected from the group consisting of acrylamide, methacrylamide and methylmethacrylate.