Patent ID: 7371432
Filing Date: 2008-05-13
Classification: B05D,B32B,Y10T

Abstract:
1. A process for making a metal-polymer composite suitable for shaping into food and beverage container end panels and container bodies, comprising: a. applying to a metal sheet a top layer comprising a fully polymerized or nearly fully polymerized polymer selected from the group consisting of polyolefins, anhydride-modified polyolefins, epoxies, and phenoxies; and b. scissioning polymer chains in said polymer by irradiating said top layer, wherein irradiating said top layer comprises directly exposing the top layer to radiation, wherein said irradiating is carried out at a sufficient energy and for a sufficient time to sufficiently embrittle said polymer in said top layer thereby to improve resistance of said top layer to feathering and angel hair formation.