Patent ID: 6783848
Filing Date: 2004-08-31
Classification: B32B,Y10S,Y10T

Abstract:
A matte biaxially oriented polypropylene film, comprising at least one matte surface layer made of a composition comprising 100 parts by weight of a resin blend of (I) 40-60 wt % of polyethylene and (II) 60-40 wt % of polypropylene, (III) 0.005-0.04 parts by weight of a peroxide and (IV) 0.1-0.5 parts by weight of a fluoroelastomer or a metal stearate,wherein the component I is composed of a copolymer of ethylene and &agr;-olefin containing 3-8 carbons, the copolymer having density of 0.945 g/cm3 (ASTM D 1505) or more; and the component II is composed of ethylene-propylene, butene-1-polypropylene, or ethylene-butene-1-propylene copolymer, the content of ethylene, butene-1 or combination thereof being 1-5 wt % based on the component II.