Process for the preparation or fluorinated graft copolymers and multilayer structures thereof

摘要

Grafting an unsaturated monomer onto a fluoropolymer comprises mixing the molten fluoropolymer with the monomer, forming the mixture into films, sheets, granules or powder, exposing the products to gamma or beta radiation (1-15 Mrad) in the absence of oxygen and optionally removing any ungrafted monomer. Independent claims are also included for: (1) structures comprising at least one layer of a grafted fluoropolymer produced as above and at least one layer of another material; and (2) bulk-grafted fluoropolymer.