Thermoplastic and biodegradable polymer foams containing oxygen scavenger
OwnerChieh-Chun Chau, Samuel A. Incorvia +3inventors
InventorsChieh-Chun Chau, Samuel A. Incorvia, David S. Payne, Thomas H. Powers, Stanislav E. Solovyov
Life of this patent
Estimating the term…
Abstract
The invention relates to an oxygen scavenging material comprising an oxygen scavenger disbursed in a low density foam, wherein the oxygen scavenger has a particle size of less than 25 μm. In another embodiment the invention relates to a product package comprising a foam tray, product in the tray, and a polymer cover surrounding the meat and tray, wherein the foam tray comprises an oxygen scavenging material, wherein the oxygen scavenging material comprises an oxygen scavenger disbursed in the foam and wherein the oxygen scavenger has a particle size of less than 25 μm.
Claims29
An oxygen scavenging material comprising an oxygen scavenger disbursed in a low-density foam, wherein the oxygen scavenger as a particle size of less than 25 μm.
A product package comprising a foam tray, product in the tray, and a polymer cover surrounding the product and tray, wherein the foam tray comprises an oxygen scavenging material, the oxygen scavenging material comprises an oxygen scavenger disbursed in the foam and, wherein the oxygen scavenger has a particle size of less than 25 μm.
A master product enclosure comprising a container formed of oxygen barrier material, a plurality of product packages comprising a foam tray, product in the tray, a polymer wrap material surrounding each product and tray to form a meat package, wherein the foam tray comprises an oxygen scavenging material disbursed in a foam, wherein the oxygen scavenger has a particle size of less than 25 μm.
A method for reducing the oxygen concentration in a master product enclosure for a plurality of product packages comprising providing a plurality of product packages, each product package comprising an inactive oxygen scavenger material and a product in contact with the inactive oxygen scavenger material to accelerate oxygen scavenging, providing a master enclosure, and placing the product packages into the master enclosure, purging oxygen from the master enclosure, and sealing the master enclosure, wherein the master enclosure comprises an oxygen impervious layer.
Dependencies are inferred from the claim text.