SANDWICH INJECTION-MOLDED ARTICLE AND SANDWICH INJECTION MOLDING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a sandwich injection-molded article having a skin layer (which is ) 300 μm in thickness and a sandwich injection molding method.;SOLUTION: In the sandwich injection molding method, the skin layer and an inside layer are formed from different compositions (composition), respectively. First, an amount necessary for forming the thickness of the skin layer of the composition forming the skin layer is injected from a first cylinder. Next, after 0.2-1.0 s, the composition forming the inside layer is injected at a high speed from a second cylinder to form the thin skin layer of 300 μm or below.;COPYRIGHT: (C)2005,JPO&NCIPI