Patent ID: 7223313
Filing Date: 2007-05-29
Classification: B32B,F16L,Y10T

Abstract:
1. A method for manufacturing a porous insulation material comprising a porous insulation layer, a metal layer and a polyamide layer, and two adhesive layers, the method comprising: extruding one of the adhesive layers onto the metal layer; extruding a glutinous not substantially crystalline polyamide onto the extruded adhesive on the metal layer to form a metal/glutinous polyamide layer; forming the porous insulation layer; adhesively affixing the glutinous polyamide/metal layer with the extruded adhesive to the insulation layer while the porous insulation layer is being formed and the polyamide is glutinous and not substantially crystalline to form a metal/glutinous polyamide/insulation layer; and heating the glutinous polyamide in the metal/glutinous polyamide layer and crystallizing the polyamide in the metal/glutinous polyamide/insulation layer and form the insulation material.