Patent ID: 9452592
Filing Date: 2016-09-27
CPC Classification: B32B,Y10T

Claim Text:
1. An active oxygen barrier film comprising an irradiated multilayer film having an active oxygen barrier layer comprising an oxygen scavenging composition that is a blend of: (A) a thermoplastic resin having carbon-carbon double bonds substantially in its main chain; (B) a transition metal salt; and (C) an oxygen barrier polymer, wherein the oxygen scavenging composition has active oxygen barrier properties prior to irradiation, and the active oxygen barrier layer is disposed between an outer sealant layer and an outer abuse layer, wherein the multilayer film has been irradiated with an electron beam radiation dosage between about 2 and 200 kilo Gray, and wherein the film has an oxygen scavenging rate that is at least about 0.01 cc oxygen per day per gram of the oxygen scavenging composition blend; and the film exhibits a higher rate of oxygen scavenging in comparison to the same film prior to irradiation.