POLYPROPYLENE RESIN COMPOSITION AND INJECTION-MOLDED ARTICLE

摘要

The present invention provides a polypropylene-based resin composition which is light weighing, has a very high values of stiffness and heat resistance, exhibits superior scratchproof property and is superior in the processibility with better flowability upon molding thereof, especially that can favorably be used for injection molding. The polypropylene-based resin composition according to the present invention is constituted predominantly of polypropylene and has the following characteristic features A and B: A: a melt flow rate (MFR), determined at 230 DEG C under a load of 2.16 kg, in the range of 5 - 50 g/10 min. and B: a content of a high molecular weight polypropylene having an intrinsic viscosity Ä eta Ü of 9 - 13 dl/g in the range of 15 - 30 % by weight.