| abstract |
PROBLEM TO BE SOLVED: To provide a method for producing a foamed molded article in which a skin layer and a highly foamed core material are molded from the same resin, have a good appearance, are lightweight and have high rigidity and impact resistance. To do. SOLUTION: A foamable resin composition comprising a specific propylene / ethylene block copolymer, ethylene / 1-butene copolymer rubber, an inorganic filler and a foaming agent, Injection is started from a position adjusted to a cavity having a volume smaller than the total volume of the foamable resin composition used at one time, A method for producing a foamed molded article through an injection filling step of terminating injection at a position corresponding to the total volume of all foamable resin compositions, and a foaming step of foaming while further expanding the cavity. |