Patent ID: 8815358
Filing Date: 2014-08-26
Classification: B32B,B65D,Y10T

Abstract:
1. An acid condiment flexible composite packaging material formed into a condiment container for containing an acidic condiment and having an interior food product facing side and an exterior packaging surface, said packaging material comprising: a flexible sheet of opaque light-blocking material comprising a metallic foil and a first surface; a flexible layer of polymeric material arranged adjacent to the first surface of the flexible sheet of opaque light-blocking material, and including a first generally planar surface and a second generally planar surface; a layer of aluminum oxide arranged between the flexible layer of the polymeric material and the metallic foil; an additional aluminum oxide layer having a thickness less than about 50 nanometers, being operable to restrict oxygen permeability of the composite packaging material, and being operable to restrict the permeability to low pH materials such that acidic or low pH compounds of an acidic condiment enclosed in the condiment container are each of: the flexible sheet of opaque light-blocking material being arranged between the flexible layer of polymeric material and the exterior packaging surface of the packaging material, wherein the packaging material provides a shelf-life of at least three years for the acidic condiment enclosed in the condiment container.