| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that a conventional polyurethane foam has insufficient uniformity of density between a surface layer part and an internal layer part. SOLUTION: In the method for molding a polyurethane foam by using a reaction injection molding machine (RIM machine), at least a part of the inner surface of a mold is composed of a material having≤5W/m×K coefficient of thermal conductivity. COPYRIGHT: (C)2007,JPO&INPIT |
