摘要 |
PROBLEM TO BE SOLVED: To obtain a resin molded product good in molding efficiency and excellent in heat resistance, chemical resistance and surface appearance. SOLUTION: First, a resin composition comprising (A) 99-1wt.% of a syndiotactic styrene-based polymer and (B) 1-99wt.% of at least one kind of thermoplastic resin or elastomer having a part or the whole of the molecular chain composed of segments compatible with the noncrystalline phase portion of the component A is melted at 270-370 deg.C. Subsequently, the resultant composition is molded by using a mold covered with a thermal insulation material having <=0.01cal/cm.s. deg.C thermal conductivity at 20 deg.C and a molding cavity with its wall temperature set at 20-150 deg.C. |