Patent ID: 7879949
Filing Date: 2011-02-01
Classification: C08L,Y10T

Abstract:
1. A low haze polymeric film having a thickness of up to 25 mil that is high-frequency weldable and optically clear consisting of: (a) a first ethylene copolymer prepared by high pressure free radical copolymerization consisting essentially of copolymerized units of ethylene and 3-15 weight % copolymerized units of a comonomer selected from the group consisting of maleic anhydride, maleic acid monoesters, maleic acid diesters, fumaric acid monoesters, itaconic acid monoesters and mixtures thereof, said first ethylene copolymer being present in the polymeric blend composition in an amount of from about 5 to about 95 weight % of the polymeric blend composition; and (b) at least one second ethylene copolymer, different from said first ethylene copolymer, consisting essentially of copolymerized units of ethylene and copolymerized units of a polar monomer selected from the group consisting of vinyl acetate, alkyl acrylates, alkyl methacrylates, carbon monoxide and mixtures of two or more thereof, wherein said polar comonomer is present in the second ethylene copolymer in an amount of from 6 to 40 weight %, the second ethylene copolymer being present in the polymeric blend composition in an amount from about 5 to about 95 weight % of the polymeric blend composition wherein the haze value of the film is 11 or less.