Patent ID: 7981478

Claim:
A process for making a fluoropolymer coated polymeric substrate comprising: applying a liquid fluoropolymer coating composition to a polymeric substrate, said fluoropolymer coating composition comprising fluoropolymer selected from polyvinyl fluoride homopolymers and copolymers of vinyl fluoride; solvent; and compatible adhesive polymer comprising functional groups selected from carboxylic acid, sulfonic acid, aziridine, amine, isocyanate, melamine, epoxy, hydroxy, anhydride and mixtures thereof; said polymeric substrate comprising thermoplastic polyester and a primer layer on its surface, said primer layer providing functional groups that interact with said compatible adhesive polymer to promote bonding of said fluoropolymer coating to said substrate; and removing the solvent from said coating composition applied to said substrate to form a fluoropolymer coating on said substrate.