| 摘要 |
PURPOSE:To stably produce a molded product having high surface glossiness and good appearance by injection molding without lowering industral productivity. CONSTITUTION:In the injection molding of a polyolefinic resin, a coating layer composed of a resin with heat conductivity of 1X10<-4>-30X10<-4>cal/cm.sec. deg.C, and m.p. or softening point of 150 deg.C or higher and surface glossiness of 60% or more is provided on the inner surface of an injection mold in wall thickness of 5-l,000mum. |
