Multi-layer isotropic films having toughness, high temperature performance, and uv absorption

Abstract

Multi-layer films, and processes to make the films, that enable the delivery of a substrate featuring a peelable thin layer of low haze, amorphous, isotropic film with the desired properties of high modulus, high usage temperature, UV blockage, and toughness The films are made using a co-extrusion, co-orientation and annealing process to enable the delivery of a thin isotropic, UV blocking layer on top of a release layer and support substrate. These film constructions can be kept together during additional processing steps such as coating and converting. The release and dimensionally stable substrate layer can be easily removed once processing steps are completed.

1 . A multi-layer film, comprising in the following order:
 an orienting layer;   a peel layer; and   an isotropic layer,   wherein the orienting layer, the peel layer, and the isotropic layer all comprise an extrudable material and are oriented.   
     
     
         2 . The film of  claim 1 , further comprising a tie layer between the orienting layer and the peel layer. 
     
     
         3 - 6 . (canceled) 
     
     
         7 . A multi-layer film, comprising in the following order:
 a first orienting layer;   an isotropic layer; and   a second orienting layer,   wherein the first and second orienting layers and the isotropic layer all comprise an extrudable material and are oriented.   
     
     
         8 . A multi-layer film, comprising in the following order:
 a first isotropic layer;   an orienting layer; and   a second isotropic layer,   wherein the orienting layer and the first and second isotropic layers all comprise an extrudable material and are oriented.   
     
     
         9 . (canceled) 
     
     
         10 . A multi-layer film, comprising in the following order:
 a first orienting layer;   a tie layer; and   a second orienting layer,   wherein the first and second orienting layers and the tie layer all comprise an extrudable material and are oriented.   
     
     
         11 - 23 . (canceled)