| 摘要 |
<p>The present invention provides a multilayer film having an active oxygen barrier and at least one layer containing an iron-based oxygen scavenging composition. In one embodiment, the active barrier layer comprises a composition that is a blend of a thermoplastic resin having carbon-carbon double bonds substantially in its main chain, a transition metal salt, and an oxygen barrier polymer. In some embodiments the active barrier layer may also include a compatibilizer. The layer containing the iron-based oxygen scavenging composition helps to maintain the oxygen barrier properties of the active barrier layer, and under both retort and non-retort conditions. As a result, the useful shelf life of the multilayer film can be extended.</p> |
