Patent ID: 9067391
Filing Date: 2015-06-30
Classification: B05D,B32B,C08J,C09D,Y10T

Abstract:
1. A method for producing a coated biaxially oriented film consisting of: orienting a base polypropylene film with a skin layer in a first direction to provide an uniaxially oriented polypropylene film; coating, in-line with orienting in a second direction, at least a portion of the uniaxially oriented polypropylene film on the skin layer with a polyolefin dispersion to produce a coated uniaxially oriented film, wherein the polyolefin dispersion is an ethylene/1-octene copolymer blended with up to 3.6 parts by weight of a fatty acid; and orienting the coated uniaxially oriented film in the second direction at a temperature sufficient to stretch and anneal the coated uniaxially oriented film so as to provide a coated biaxially oriented film having greater than 80% gloss and a Haze of less than 5%, wherein a temperature for orienting in the second direction is greater than the melting temperature of the ethylene/1-octene copolymer; wherein the coated biaxially oriented film produced therefrom can be heat sealed to at least a portion of itself or at least a portion of another film at a heat seal temperature of less than 80° C.