Patent ID: 6495309
Filing Date: 2002-12-17
Classification: B41N,C08J,G03G,Y10S

Abstract:
A polymeric film which is substantially gelatin free and comprises a polymeric film substrate having on at least one surface thereof, a coating layer comprising a polymer comprising at least one or more repeating units comprising at least one pendant (â€”POXY) group, wherein X and Y, which may be the same or different, are OH or OM wherein M is a cation, wherein said coating layer polymer further comprises 10 to 70 mole % of repeating units containing pendant carboxyl groups or groups which are capable of forming carboxyl groups on hydrolysis, and wherein said coating layer polymer further comprises a comonomer which is a sulphonated monomer or a salt or other derivative thereof and wherein said coating layer polymer comprises a copolymer of acrylic acid and vinyl phosphonic acid.