| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a foamed molding which keeps the deformation of bubbles suppressed, has high mechanical strength and excellent dimensional precision, and is molded appropriately by deep draw molding. SOLUTION: An unfoamed thermoplastic resin sheet or film 14 containing a blowing agent is expanded and molded by being held between two preheated molds 10 and 12. COPYRIGHT: (C)2009,JPO&INPIT |
