Janet Rivett;Scott Beckwith;Rachel McDowell;Frank Bryan Edwards;Thomas Kennedy;Cynthia Louise Ebner;Drew V. Speer
发明人:
Scott Beckwith,Frank Bryan Edwards,Janet Rivett,Cynthia Louise Ebner,Thomas Kennedy,Rachel McDowell,Drew V. Speer
申请号：
US11845846
公开号：
US09452592B2
申请日:
2007.08.28
申请国别(地区):
US
年份:
2016
代理人:
摘要：
The present invention is directed to a multilayer film having an active oxygen barrier layer that comprises an oxygen scavenging composition that is a blend of a thermoplastic resin (A) having carbon-carbon double bonds substantially in its main chain, a transition metal salt (B), and an oxygen barrier polymer (C) having oxygen barrier properties that can be further enhanced by exposing the composition to a source of ionizing radiation e.g., electron beam radiation. Irradiation improves the oxygen scavenging abilities of the oxygen scavenging composition so that oxygen can be intercepted and scavenged as it passes through the film. The resulting irradiated multilayer film has improved active barrier properties in comparison to the same film prior to irradiation. As result, the multilayer film of the present invention can be used in packaging applications to help maintain a low oxygen atmosphere in the interior of a package.
