MULTILAYER FILM HAVING AN ACTIVE OXYGEN BARRIER LAYER WITH RADIATION ENHANCED ACTIVE BARRIER PROPERTIES

MULTILAYER FILM HAVING AN ACTIVE OXYGEN BARRIER LAYER WITH RADIATION ENHANCED ACTIVE BARRIER PROPERTIES

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 barr...

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Hauptverfasser: MCDOWELL, Rachel, KENNEDY, Thomas, BECKWITH, Scott, RIVETT, Janet, SPEER, Drew, V, EDWARDS, Frank, Bryan, EBNER, Cynthia, Louise
Format: Patent
Sprache:eng ; fre ; ger
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LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PERFORMING OPERATIONS
TRANSPORTING
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creator MCDOWELL, Rachel
KENNEDY, Thomas
BECKWITH, Scott
RIVETT, Janet
SPEER, Drew, V
EDWARDS, Frank, Bryan
EBNER, Cynthia, Louise
description 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.
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subjects LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PERFORMING OPERATIONS
TRANSPORTING
title MULTILAYER FILM HAVING AN ACTIVE OXYGEN BARRIER LAYER WITH RADIATION ENHANCED ACTIVE BARRIER PROPERTIES
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