| 摘要 |
PURPOSE:To prepare the title molded article excellent in the printing properties, resistance to boiling, and adhesive properties by molding a styrenic polymer (compsn.) with a syndiotactic structure and specifically treating at least a part of the surface of the product to bring the surface tension of the treated part above a specified value. CONSTITUTION:A styrenic polymer (compsn.) (e.g. polystyrene) with a syndiotactic structure is molded, and at least a part of the surface of the product is subjected to a chemical treatment (e.g. a treatment with a chemical) and/or a physical treatment (e.g. corona discharge) to bring the surface tension of the treated part to 35dyne/cm or higher. |
