Patent ID: 6534189
Filing Date: 2003-03-18
Classification: B29C,B29K,B32B,Y10S,Y10T

Abstract:
A tobacco pack or carton overwrap film comprising a uniaxially heat-shrinkable, biaxially oriented, multilayer film having a polypropylene containing core layer, said core layer comprising isotactic polypropylene and a modifier which reduces the crystallinity of the polypropylene-containing core layer and at least one polyolefin containing skin layer adjacent said core layer, said skin layer comprising silicone oil, wherein said modifier is selected from the group consisting of atactic polypropylene, syndiotactic polypropylene, ethylene-propylene copolymer, propylene-butene-1 copolymer, ethylene propylene-butene-1 terpolymer, polybutene-1, polyethylene and linear low density polyethylene.