Patent ID: 6500559
Filing Date: 2002-12-31
Classification: B29C,B32B,Y10T

Abstract:
A multilayer film comprising:a) a core layer consisting essentially of an amorphous polyamide; b) two intermediate layers, disposed on opposite surfaces of the core layer, comprising a semicrystalline polyamide; c) two adhesive layers, each disposed on a surface of the respective intermediate layer, comprising a polymeric adhesive; and d) two outer layers, each disposed on a surface of a respective adhesive layer, comprising a material selected from the group consisting of amorphous polyamide, semicrystalline polyamide, ethylene/alpha olefin copolymer, propylene homopolymer, and propylene/alpha olefin copolymer; wherein the film has a total thickness of between 0.5 and 10 mils; andwherein the film exhibits a free shrink of less than 5% in the longitudinal direction, and less than 5% in the transverse direction, at 180Â° F.