| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding method capable of obtaining a foamed molded product causing no collape of foam cells and having excellent appearance. SOLUTION: The foaming agent in a molding cavity is pressurized to a foaming pressure or more and, in this state, a foamable resin raw material is charged in the molding cavity. COPYRIGHT: (C)2004,JPO |
