Patent ID: 6824864
Filing Date: 2004-11-30
Classification: B29C,B29K,B32B,C08L,Y10S,Y10T

Abstract:
A multi-layer, bioriented film stretched in the machine direction and in the transverse direction, said film comprising(a) a base layer comprising polyethylene and a cavitating agent, said base layer having a first and second side; (b) skin layers on said first and second sides of said base layer, wherein at least one of said skin layers comprises (i) a hydrocarbon resin and (ii) a copolymer of ethylene and at least one monomer having at least three carbon atoms; and wherein the multi-layer film has a WVTR of at least 3.0 grams/100 square inches/day at 38Â° C. and 100% relative humidity.