| 摘要 |
<p>A polypropylene resin composition exibiting a high melt tension and superior moldability, which can be molded efficiently by a high-speed molding into scarcely deformable larger molded articles of better appearance with high stiffness and which comprises polypropylene as a main component and has the following characteristic features 1) to 4), namely, 1) thet a melt flow rate (MFR, determined at 230 DEG C under a load of 2.16 kg) is in the range of 0.01 to 5 g/10 min., 2) that a content of a high molecular weight polypropylene exhibiting an intrinsic viscosity Ä eta Ü , determined at 135 DEG C in decalin, of 8 - 13 dl/g is in the range of 15 to 50 % by weight, 3) that a gel areal density in number is 3,000/450 cm<2> or less and 4) that a molecular weight distribution determined by gel permeation chromatography (GPC) is 6 - 20, as expressed by Mw/Mn, and is 3.5 or higher, as expressed by Mz/Mw.</p> |
