Compatible blend systems of oxygen barrier polymers and oxygen scavenging polymers
AssigneeChevron Phillips Chemical Company LP
InventorsRaymond Laplante, Hu Yang, Ta Yen Ching, Gangfeng Cai
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AssigneeChevron Phillips Chemical Company LP
InventorsRaymond Laplante, Hu Yang, Ta Yen Ching, Gangfeng Cai
Estimating the term…
Herein is disclosed an oxygen barrier composition comprising an oxygen barrier polymer and an oxygen scavenging polymer. The composition can be in the form of a physical blend or a cross-linked blend, and can further comprise a compatibilizer, a transesterification catalyst, or both. Preferably, the oxygen barrier polymer is poly(ethylene/vinyl alcohol) (EVOH), polyethylene terephthalate (PET), or polyamide other than MXD6. Preferably, the oxygen scavenging polymer comprises an ethylenic backbone and a pendant cyclic olefinic group, or the oxygen scavenging polymer is a polyamide derived at least in part from a xylene diamine-based monomer. The oxygen barrier composition can be formed into an oxygen barrier layer of a packaging article. Such layers and articles, and methods for making same, are also disclosed.
An oxygen battier composition, comprising:
A packaging article, comprising:
A method of making an oxygen barrier composition comprising
A method of forming an oxygen barrier layer in a packaging article comprising:
Dependencies are inferred from the claim text.