Patent ID: 6783844
Filing Date: 2004-08-31
Classification: B29C,C08J,Y10T

Abstract:
A polypropylene resin foam-molded article obtained by molding a material for a foam-molded article using a polypropylene resin, wherein the molded article comprises a main body part and a rib part; the rib part has a thickness (Tr) of 3 mm or less, or a thickness ratio (Tr/Tb) of a thickness of the rib part (Tr) to a thickness of the main body part (Tb) is 0.8 or less; the main body part and the rib part each comprise a non-foamed surface layer and an intermediate layer having a foamed structure, the non-foamed surface layer and intermediate layer comprising the same material; and the foamed intermediate layer in the main body part is connected to the foamed intermediate layer in the rib part and the foamed intermediate layer is encased in the non-foamed surface layer.