Patent ID: 6287700
Filing Date: 2001-09-11
Classification: B32B,Y10T

Abstract:
A coextruded film structure comprising:(a) a first outer layer comprising a migratory additive;(b) a second outer layer comprising single site catalyzed ethylene homopolymers or copolymers and having an interior surface and an exterior surface, wherein the exterior surface is contacted by the migratory additive of the first outer layer upon the winding of the film structure; and(c) a core substrate layer, wherein said core substrate layer is disposed between said first outer layer and said second outer layer, and further wherein said interior surface of said second outer layer is adjacent to said core substrate layer, wherein said core substrate layer comprises a polyolefin selected from the group consisting of polypropylene, high density polyethylene, and mixtures thereof, and said film structure is laminated to a metallized sealable film by coating the exterior surface of the second outer layer of said film structure with adhesive and bonding the second outer layer of said film structure to a metallized surface of the metallized sealable film, and further wherein the lamination bond strength between said film structure and the metallized sealable film is greater than 100 g/in.