Patent ID: 7807007
Filing Date: 2010-10-05
Classification: A44B,A61F,B29C,B29L,B32B,Y10T

Abstract:
1. A method of forming a sheet-form product, the method comprising: providing a forming surface having a multiplicity of inwardly extending forming cavities; forming a multi-layer sheet in the interior of which is a parting surface defined by resin materials of limited compatibility, a first resin of the sheet lying on one side of the parting surface and a second resin lying on an opposite side of the parting surface, the parting surface having peelable tensile strength; pressing the multi-layer sheet against the forming surface to cause the first resin and the second resin of the multi-layer sheet to substantially conform to and fill the cavities of the forming surface; and peeling the multi-layer sheet apart at the parting surface, whereby material directly engaging the forming surface defines a sheet-form member having a multiplicity of hollow formations.