Patent ID: 7410706
Filing Date: 2008-08-12
Classification: B29C,B32B,C08L,G02B,Y10T

Abstract:
1. A machine direction only oriented multilayer film comprising (A) a base layer having an upper surface and a lower surface, and comprising polyethylene, a propylene homopolymer, a propylene copolymer, or a blend of a propylene homopolymer and a propylene copolymer, and (B) a first skin layer comprising a blend of (C) a second skin layer having an upper surface and a lower surface wherein the upper surface of the second skin layer underlies the lower surface of the base layer, and the second skin layer comprises a blend of a polyethylene, a propylene homopolymer or copolymer, and an antiblock agent, and the multilayer film has been oriented in the machine direction at a stretch ratio of from about 2:1 to about 9:1 and then heat set or annealed to provide dimensional stability.