Patent ID: 8092920

Claim:
A coextruded hot-blown film having at least three layers, the film comprising: a core layer sandwiched between two skin layers, the film having a haze value of less than about 15% as measured by ASTM-D-1003, a 2% secant modulus greater than about 50,000 psi as measured by ASTM-D-638, and a cross-directional (CD) shrinkage greater than 0% psi as measured by ASTM-D-2732, wherein: (a) the core layer is a member selected from the group consisting of high density polyethylene with a density from 0.941 g/cm 3 to 0.965 g/cm 3 , a blend of low density polyethylene and high density polyethylene with a density from 0.941 g/cm 3 to 0.965 g/cm 3 , and cyclic-olefin copolymer and, (b) the skin layers, which may be the same or different, each skin layer composed of a single component selected from the group consisting of low density polyethylene, polystyrene, cyclic-olefin copolymer, styrene-butadiene block copolymer, and polypropylene random copolymer, provided that the skin layers are devoid of a homogeneously branched polyethylene resin prepared with a single site catalyst.