Patent ID: 7074469
Filing Date: 2006-07-11
Classification: B32B,B65D,Y10T

Abstract:
1. An container with a confined space with a low permeability to a gas or a vapor which comprises: a confined space formed at least in part with a composite composition which comprises: a sheet of a preformed porous fabric layer of overlapping, separate elongate members, which form the fabric layer, wherein each of the elongate members have a length, width or thickness which is less than about ten micrometers; and a water-insoluble polymer which has been impregnated into the fabric layer, wherein the composite composition has a transmission rate to oxygen that is less than one-tenth the transmission rate for the fabric layer alone and less than one-fifth the transmission rate for the polymer alone without the fabric layer, wherein the composite composition provides a barrier between opposed sides of the sheet in the enclosure.