Patent ID: 7600669
Filing Date: 2009-10-13
Classification: B29C,B29L,B31B,B32B,B65D,Y10S,Y10T

Abstract:
1. A container blank, comprising: a substrate layer made of disposable material suitable for forming a sidewall of a container, wherein the substrate layer has an interior and an exterior as well as upper and lower substrate layer portions corresponding to upper and lower portions of the container sidewall; and a shrink film layer secured to the interior of the substrate layer in a pattern extending over both upper and lower portions of the substrate layer, wherein the shrink film layer is adapted to shrink away from the substrate layer upon application of heat thereto, thereby providing a shrunk film layer secured to the interior of the substrate layer in a pattern extending over both upper and lower portions of the substrate layer after heat is applied to the shrink film layer; whereby the shrunk film layer provides a plurality of pockets of thermal insulation between the substrate layer and shrunk film layer in a pattern extending over both upper and lower portions of the container sidewall when present on an interior of a container.