| 摘要 |
<p>A novel olefin polymerization catalyst is disclosed prepared by (1) forming a solution of a metal halide such as magnesium dichloride with a titanium compound such as titanium tetraethoxide, (2) reacting that solution with a dihydrocarbyl magnesium and a hydrocarbylaluminum halide to obtain a solid precipitate, and then (3) treating the solid precipitate with a transition metal halide.</p> |
