Patent ID: 9057472
Filing Date: 2015-06-16
Classification: B32B,B65D,C04B,F16L,Y10T

Abstract:
1. A heat insulating material comprising a sheet having: a first layer and a second layer of closed-cell gas bubbles filled with a noble gas, the closed-cell gas bubbles of the first layer being formed by depressions formed in a lower surface of a first laminate film and sealed by an upper surface of a flat laminate film, the closed-cell gas bubbles of the second layer being formed by depressions formed in a lower surface of a second laminate film and sealed by an upper surface of a flat foil, an upper surface of the first laminate film being bonded to a lower surface of the flat foil; a heat reflective layer, a lower surface of the heat reflective layer being bonded to an upper surface of the second laminate film; and, a third layer having one or more air spaces filled with air, the one or more air spaces of the third layer being formed by one or more respective depressions formed in an upper surface of a third laminate film and sealed by a flat foil layer, a lower surface of the third laminate film being bonded to an upper surface of the heat reflective layer.