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AssigneeHoneywell International Inc.
InventorsMurali K. Akkapeddi, Timothy J. Kraft, Edward P. Socci
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Oxygen barrier polyamide compositions exhibiting high oxygen scavenging capability suitable for extended shelf-life, packaging applications. Thus a polyamide composition comprises a polyamide homopolymer, copolymer, or blends thereof, and at least one polyamide reactive, oxidizable polydiene or oxidizable polyether. The polyamide products are particularly suited to making barrier packaging articles such as monolayer or multi-layer films, sheets, thermoformed containers and coinjection/coextrusion blow molded bottles comprising PET, polyolefin or polycarbonate as structural layers. Such articles are useful in a variety of oxygen-sensitive food, beverage, pharmaceutical and health care product packaging applications.
An oxygen barrier film comprising a layer of a polyamide composition which comprises a polyamide homopolymer, copolymer, or blends thereof, at least one epoxy or anhydride functionalized, polyamide reactive, oxidizable polydiene or epoxy or anhydride functionalized, polyamide reactive, oxidizable polyether, and an oxidation promoting metal salt catalyst.
A multilayer article which comprises an oxygen barrier polyamide composition layer comprising a polyamide homopolymer, copolymer, or blends thereof, at least one epoxy or anhydride functionalized, polyamide reactive, oxidizable polydiene or epoxy or anhydride functionalized, polyamide reactive, oxidizable polyether;
A shaped article which comprises a polyamide composition which comprises a polyamide homopolymer, copolymer, or blends thereof, at least one epoxy or anhydride functionalized, polyamide reactive, oxidizable polydiene or epoxy or anhydride functionalized, polyamide reactive, oxidizable polyether and an oxidation promoting metal salt catalyst.
A process for producing an oxygen barrier polyamide film which comprises melting a polyamide homopolymer, copolymer, or blends thereof, and blending the molten polyamide homopolymer, copolymer, or blend thereof with at least one epoxy or anhydride functionalized, polyamide reactive, oxidizable polydiene or epoxy or anhydride functionalized, polyamide reactive, oxidizable polyether and an oxidation promoting metal salt catalyst to form a mixture, and then extruding, casting or blowing the fixture into a film with subsequent cooling.
A process for producing an oxygen barrier polyamide film which comprises melting a composition comprising a polyamide homopolymer, copolymer, or blends thereof, at least one epoxy or anhydride functionalized, polyamide reactive, oxidizable polydiene or epoxy or anhydride functionalized, polyamide reactive, oxidizable polyether, and an oxidation promoting metal salt catalyst, and then extruding, casting or blowing the composition into a film with subsequent cooling.
A process for producing a multilayer article which comprises blending a polyamide homopolymer, copolymer, or blends thereof, with at least one epoxy or anhydride functionalized, polyamide reactive, oxidizable polydiene or epoxy or anhydride functionalized, polyamide reactive, oxidizable polyether and an oxidation promoting metal salt catalyst to form a mixture;
Dependencies are inferred from the claim text.