Patent ID: 6764751
Filing Date: 2004-07-20
Classification: B29C,B29K,B32B,C08J,Y10S,Y10T

Abstract:
A multilayer polyethylene film comprising:a substrate comprising a base layer having a first side and a second side, the base layer comprising high density polyethylene (HDPE), a first tie layer comprising an ethylene polymer selected from the group consisting of HDPE, medium density polyethylene (MDPE), low density polyethylene (LDPE), and blends thereof, and a first skin layer comprising propylene-ethylene copolymer or MDPE; and at least one coating applied to the first skin layer, the coating having a thickness of from about 0.2 &mgr;m to about 5.1 &mgr;m, and the coating being selected from the group consisting of polyvinylidene chloride (PVdC), low temperature seal coating (LTSC), polyvinyl alcohol polymer (PVOH) and acrylic coating, wherein the first tie layer is interposed between the base layer and the first skin layer, the first tie layer is coextensive with both the first side of the base layer and the first skin layer, and the substrate is oriented in the machine direction to a degree of from about 5:1 to about 8:1 and in the transverse direction to a degree of from about 6:1 to about 15:1.