HORIPUROPIRENKEIJUSHITOSHIRIKOONGOMUTONOITSUTAISEIKEITAIOYOBISONOSEIZOHOHO

摘要

PURPOSE:To obtain a molded object wherein a polypropylene resin and silicone rubber are strongly bonded by integrally laminating and bonding addition curable silicone rubber to an aliphatic saturated group-containing polypropylene resin. CONSTITUTION:A molding machine is a two-color injection molding machine equipped with injection devices and nozzle parts 1, 2 are connected to the cavities 5, 6 of molds 3, 4. The nozzle part 1 injects a resin from a mold parting line and the nozzle part 2 injects the resin from the central part of the right- hand surface of the mold 4. At first, a polypropylene resin modified with 2.5mol% of a diene compd. is charged in the injection molding machine to be melted at 200 deg.C and injected in a cavity part 5 from the nozzle part 1 to form a resin sheet molded article 7.