| 摘要 |
A polypropylene resin composition comprising 5-25% by weight of a higher molecular weight polypropylene (A) having an intrinsic viscosity Ä eta Ü, determined in decalin at 135 DEG C, of from 6 to 11 dl/g and 95 - 75% by weight of a lower molecular weight polypropylene (B) having an intrinsic viscosity Ä eta Ü, determined in decalin at 135 DEG C of from 0.6 to 1.6 dl/g, wherein the said resin composition has the following characteristic features (1) and (2), namely, (1) an isotactic pentad fraction (mmmm-fraction), determined by <13>C-NMR, of at least 96.5% and (2) a molecular weight distribution expressed by Mw/Mn (weight-average molecular weight/number-average molecular weight), determined by gel permeation chromatography (GPC), of at least 8. |
