POLYPROPYLENE RESIN FOAMED SHEET FOR THERMOFORMING AND LAMINATED POLYPROPYLENE RESIN FOAMED SHEET FOR THERMOFORMING

摘要

PROBLEM TO BE SOLVED: To prepare a polypropylene resin formed sheet for thermoforming having good appearance of a molded article while keeping mold ability and appearance inherent in the polypropylene resin foamed sheet for thermoforming, and rigidity even when having small weight per unit area to secure lighter weight properties, and a polypropylene resin foamed sheet for thermoforming having a polypropylene resin layer on at least one side of the above foamed sheet.;SOLUTION: The polypropylene resin foamed sheet for thermoforming having an apparent density of 100-200 g/L, a thickness of 1-3 mm, a basis weight of 175-425 g/m2, continuous porosity of at most 35%, and a stress when compressed to 25% of thickness of at least 4.9×104 N/m2 and a polypropylene resin foamed sheet for thermoforming having a polypropylene resin layer on at least one side of the above foamed sheet and a basis weight of ay most 500 g/m2 are provided.;COPYRIGHT: (C)2001,JPO