| 摘要 |
<p>A solid titanium catalyst component (I) comprising titanium, magnesium, halogen, a specific cyclic ester compound (a) and a specific cyclic ester compound (b), an olefin polymerization catalyst containing this catalyst component (I), and an olefin polymerization process using this olefin polymerization catalyst are disclosed. According to the solid titaniumcatalyst component, the olefin polymerization catalyst and the process for preparing an olefin polymer of the invention, an olefin polymer hay stereoregularity and a wide molecular weight distribution can be prepared with activity, preparation of an olefin polymer excellent not only in molding properties such as high-speed streatchability and high-speed moldability but also in rigidity becomes possible, and besides, production cost can be reduced.[Figure 1]</p> |
