Patent ID: 8343291
Filing Date: 2013-01-01
Classification: B32B,Y10T

Abstract:
1. An improved commercial batch laminating process for a flat metal substrate comprising: a. continuously unwinding a coil of said flat metal substrate by controlling the tension and speed of said flat metal substrate, b. pretreating one or both major surfaces of said flat metal substrate by raising the surface energy of any said major surface to at least 55 dynes/cm, c. preheating said flat metal substrate to a laminating temperature, d. pressing a laminating film onto any said pretreated major surface of said flat metal substrate thereby creating a film-metal laminate, wherein each said pretreated major surface of said flat metal substrate may have a different said laminating film, e. wherein any of said laminating film comprises primarily a thermoplastic polymer, f. reheating said film-metal laminate to a post treatment temperature, g. cooling said film-metal laminate to a winding temperature, and h. wherein the threaded length of said flat metal substrate in said commercial batch laminating process is less than 200 feet.