| abstract |
A modified Ziegler Natta procatalyst, which is a product mixture resulting from modifying an initial Ziegler Natta procatalyst with a molecular (pro) catalyst and optionally an activator, wherein the modification is This is done before activating the modified Ziegler Natta procatalyst with an activator and before contacting the modified Ziegler Natta procatalyst with the polymerizable olefin. Also, a modified catalyst system prepared therefrom, a method of preparing a modified Ziegler Natta procatalyst and a modified catalyst system, a method of polymerizing olefins using the modified catalyst system, and Polyolefin product produced thereby. |