| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylene resin composition capable of producing moldings excellent in impact properties, low-temperature properties, flowability and rigidity and, in addition, moldings having good external appearance by suppressing failures in external appearance such as particles appearing on the surface of moldings as gel, particularly when shaped into the moldings of a large size. SOLUTION: The polypropylene resin composition comprises at least (A) a crystalline polypropylene and (B) an olefin-based rubber. The melt flow rate of the composition is not lower than 15 g/10 min and the ratio of the melt flow rate of the crystalline part (I) in the composition to that of the rubber part (II) is not smaller than 150 and the number of fish eyes per 1 m<2> area of a 30μm-thick film obtained by the extrusion molding of the composition is not more than 1,000. As the content ratio of rubber part (II) to crystalline part (I), it is preferred to use 5-100 pts.wt. rubber part (II) based on 100 pts.wt. crystalline part (I). |
