GRANULE FOR PRODUCING FOAMED PLASTIC COMPOSITE MOLDING AND METHOD FOR PRODUCING FOAMED PLASTIC COMPOSITE MOLDING USING THE GRANULE AS MAIN RAW MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a foamed plastic composite molding having a reduced weight and good stiffness, and a particle having a shape suitable for producing the molding. SOLUTION: A plastic is charged into a ring-die granulator to produce a granule 2 having a compacted central member 6 and a molten and solidified surface member 5 covering the central member 6. The granule 2 is then charged into an extruder without drying to form a sheet through a sheet-die. A sheet having an expansion ratio of about 1.5-2 times can be obtained.