| abstract |
The present invention provides a polypropylene-basednresin composition which is light weighing, has anvery high values of stiffness and heat resistance,nexhibits superior scratchproof property and is superiornin the processibility with better flowability uponnmolding thereof, especially that can favorably be usednfor injection molding. n The polypropylene-based resin compositionnaccording to the present invention is constitutednpredominantly of polypropylene and has the followingncharacteristic features A and B:n A: a melt flow rate (MFR), determined at 230 °C underna load of 2.16 kg, in the range of 5 - 50 g/10 min.nand B: a content of a high molecular weight polypropylenenhaving an intrinsic viscosity [η] of 9 - 13 dl/gnin the range of 15 - 30 % by weight. |