Patent ID: 8021746
Filing Date: 2011-09-20
Classification: A23B,A23L,B32B,Y10T

Abstract:
1. An article comprising a multilayer film or sheet which comprises a structure layer, an oxygen permeable layer, and optionally an additional polymer layer wherein the article is permeable to oxygen; the structure layer is a rigid or semi-rigid layer and the oxygen permeable layer comprises or is produced from one or more E/X/Y copolymers or ionomers of the E/X/Y copolymers, one or more organic acids, and optionally one or more ethylene-containing polymers, one or more silicon-containing polymers, or combinations of two or more thereof; E is derived from ethylene, X is derived from at least one C the organic acid is an aliphatic acid or salt thereof each having fewer than 36 carbon atoms; the acid moieties in the E/X/Y copolymer and organic acid are nominally neutralized; the structure layer includes cellulose, cellulose derivative, polymer resin, or combinations of two or more thereof; the cellulose derivative is in the form of paper, paperboard, cardboard, pulp-molded shape, or combinations of two or more thereof; and the polymer resin is in the form of an open-cell foam, melt bonded non-woven porous sheet, or combinations of two or more thereof.