POLYPROPYLENE-BASED RESIN COMPOSITION FOR INJECTION MOLDING AND INJECTION-MOLDED PRODUCT USING THE COMPOSITION

摘要

PROBLEM TO BE SOLVED: To obtain a resin composition for providing an injection-molded product comprising a crystalline polypropylene as a main component with transparency without reducing heat resistance and rigidity. SOLUTION: The polypropylene-based resin composition for injection molding comprises a crystalline polypropylene having 5-65 g/10 minutes MFR (melt flow rate) under 2.16 kg load at 230°C, a nucleating agent and a polystyrene-based or polyolefin-based hydrogenated thermoplastic elastomer. The composition comprises a crystalline polypropylene, a nucleating agent and a polystyrene-based or polyolefin-based hydrogenated thermoplastic elastomer and has≥100 MPa tensile modulus of molded product after injection molding. COPYRIGHT: (C)2005,JPO&NCIPI