Patent ID: 6861020
Filing Date: 2005-03-01
Classification: B29C,B29K,B29L

Abstract:
1. A method for manufacturing a press molded article that comprises a substrate layer and a foamed layer, comprising: press molding, a substrate material and a foamable material under pressure, thereby forming the substrate layer and joining the foamable material to the substrate layer, expanding the foamable material after completing the press molding step, thereby forming the foamed layer, and prior to the press molding step, heating the substrate material to a temperature higher than a temperature that generates cell forming substances within the foamable material, wherein the press molding step further comprises healing the foamable material to a temperature that generates cell forming substances within the foamable material, and wherein the expanding step comprises reducing the pressure that is applied to the foamable material to a pressure that is less than the pressure applied to the foamable material during the press molding step.