Patent ID: 6770360
Filing Date: 2004-08-03
Classification: B29C,B29K,B32B,B44C,G09F,Y10T

Abstract:
A multilayered thermoplastic film, comprising:a thermoplastic core layer having a first side and a second side, the core layer comprising: (a) a polyolefin having a density in the range of about 0.89 to about 0.97 grams per cubic centimeter; (b) from about 2% to about 25% by weight of a second polymeric material selected from ionomers derived from sodium, lithium or zinc and an ethylene/unsaturated carboxylic acid copolymer; and (c) a light stabilizer at a concentration of about 1000 to about 10,000 ppm based on the weight of the core layer; at least one abrasion resistant first thermoplastic skin layer overlying the first side of the core layer; at least one second thermoplastic skin layer overlying the second side of the core layer, and at least one layer of a pressure sensitive adhesive overlying the second thermoplastic skin layer, wherein the composition of the core layer is different from the composition of the skin layers, and the core layer and the skin layers are characterized by the absence of PVC.