COMPOSITE PLASTIC MOLDED PRODUCT

摘要

PURPOSE:To obtain the above molded product having rigidity, generating no warpage or distortion and having a soft feeling on its surface by using a specific polystyrene resin or a composition thereof as hard plastic and using a specific thermoplastic elastomer resin or a composition thereof as soft plastic. CONSTITUTION:A composite plastic molded product is formed by integrating a hard polystyrenic resin and a soft thermoplastic elastomer resin. The polystyrenic resin or a composition thereof is composed of a resin such as polystyrene or rubber modified polystyrene or a composition of said resin and polypropylene or the like. The thermoplastic elastomer resin or a composition thereof is composed of a resin such as a styrene/butadiene block copolymer or a composition of said resin and polystyrene or the like. The composite plastic molded product is formed by subjecting one of the styrenic resin and the thermoplastic elastomer resin to injection molding in a mold and subsequently subjecting the other one of them to injection molding to simultaneously thermally bonding both of them.