BIODEGRADABLE FOAMED MOLDING, METHOD FOR MOLDING IT AND MOLD FOR MOLDING

摘要

PROBLEM TO BE SOLVED: To perform the molding of the degradable foamed molding by an injection molding machine by using a natural polymer material by externally discharging a vapor or the like generated when molded through vent holes formed at the mold. SOLUTION: In the biodegradable foamed molding, the method for molding it and the mold for molding, the natural polymer material is plasticized, the vapor generated when the material is injected and foamed in the mold 1 is externally discharged from the vent holes 4 of the mold 1. Thus, the biodegradable foamed molding having good moldability and a small bulk specific gravity can be obtained.