Patent ID: 7285335
Filing Date: 2007-10-23
Classification: A01N,B32B,C08L,Y10S,Y10T

Abstract:
1. An antifogging coextruded and oriented film having at least three layers comprising: an outer layer consisting of a polymer selected from the group consisting of polypropylene homopolymer, ethylene-propylene-n-butene terpolymers, ethylene-propylene copolymers, ethylene-n-butene copolymers, and mixtures thereof; a skin layer comprising at least one antifogging agent and a polymer selected from the group consisting of polypropylene homopolymer, ethylene-propylene-n-butene terpolymers, ethylene-propylene copolymers, ethylene-n-butene copolymers and mixtures thereof and a core layer between the outer layer and the skin layer, comprising at least one antifogging agent and a polymer selected from the group consisting of polypropylene homopolymer, ethylene-propylene-n-butene terpolymers, ethylene-propylene copolymers, ethylene-n-butene copolymers and mixtures thereof.