Chevron Phillips Chemical Company LP

Chevron Chemical Company LLC

Cryovac, Inc.

Richard P Schmidt

Ta Yen Ching

Joseph L Goodrich

Gary D Jerdee

Brad D Rodgers

James P Leonard

Hu Yang

Gangfeng Cai

James A Solis

Oxygen scavenging materials incorporated into or attached to a package such as a gable-top or rectangular carton, used to package foods, beverages or other oxygen sensitive materials, and thereby increase shelf-life by decreasing oxygen in the headspace of the package, and decreasing oxidation of the packaged product.

Oxygen scavenging packaging

Disclosed herein are oxygen scavenging compositions and packaging articles that comprise (a) a metal catalyzed oxidizable compound and (b) at least one of a transition metal carboxylate, wherein the transition metal carboxylate comprises at least one carboxylate group and wherein each carboxylate group comprises between 20 and 30 carbon atoms, inclusive, such as cobalt behenate or cobalt arachidate.

Transition metal carboxylates as catalysts for oxygen scavenging

Herein is disclosed an emulsion, comprising an oxygen scavenging polymer, water, and a surfactant. The emulsion can be formed by first forming an emulsion comprising at least one monomer, water, and the surfactant, and polymerizing the monomer. Once formed, the emulsion can be used to form an oxygen scavenging packaging article by coating at least one surface of the packaging article or contacting two surfaces of the packaging article with the emulsion, and evaporating water from the emulsion-coated or -contacted surface, to form a polymer coating.

Oxygen scavenging polymer emulsion suitable as a coating, an adhesive, or a sealant

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Plainfield, IL, United States of America

Richard P Schmidt