Patent ID: 6844078

Claim:
A metallized polyolefinic multi-layer film comprising at least: a high crystalline propylene homopolymer resin layer of isotactic content greater than about 95%; a discharge-treated surface on one side of said polyolefin resin layer; on the high crystalline propylene homopolymer resin layer side opposite said discharge-treated surface, a heat sealable layer or winding layer comprising a antiblock comprising a material selected from the group consisting essentially of amorphous silicas, aluminosilicates, sodium calcium aluminum silicate, and a polymeric antiblock; a metal layer vapor-deposited on the discharge-treated side of the high crystalline propylene homopolymer core resin layer opposite the heat sealable or winding layer; wherein the film has good or excellent resistance to film distortion that is caused by the absorption of food oils.