Importance

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Abstract

A modified atmosphere package for storing oxygen sensitive goods which contains a a gas permeable tray for holding the oxygen sensitive goods, a gas permeable film positioned over and adjacent to the tray forming a wrapped tray, a barrier bag with an inside surface and an outside surface within which the wrapped tray is disposed, and a pressure relief valve located on the outside surface of the barrier bag. The tray contains foam material, at least about 20 volume percent of which is open cell foam with an average cell diameter of from about 0.001 to about 0.020 inches. A film of gas permeable material is disposed over and contiguous with the bottom wall of the gas permeable tray. The barrier bag has an oxygen permeability of less than 5 cubic centimeters per 100 square inches per 24 hours.

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First Claim