Package with microwave induced insulation chambers

Details Package with microwave induced insulation chambers Package with microwave induced insulation chambers

B - Operations, Transporting

65

D

B65D 81/34 (2006.01) B65D 81/38 (2006.01) H05B 6/80 (2006.01)

Patent

CA 2085903

2085903 9200899 PCTABS00010 The present invention provides an insulating microwave heating package (10) with at least one and preferably a multiplicity of latent, uninflated or potential insulation chambers (C) capable of inflating when exposed to microwave energy. The package includes at least two sheets of material (22, 24) bonded together (28) at selected points, patches or along seal lines (28a) separated by unsealed areas (28b) which define unfilled inflation chambers (C) between the lines, patches or points. Upon exposure to microwave energy, the package and its contents become heated. As a result of this heating process, the unfilled chambers also become heated, causing them to become filled with hot expanding air or moisture vapor. These chambers (C) serve as insulation for the package and enhance heating of the food (20) by reducing heat loss from the package.

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