Ziegler-Natta catalyst systems and polymers formed therefrom

摘要

Processes of forming catalyst systems, catalyst systems and polymers formed therefrom are described herein. The processes generally include providing a first compound including a magnesium dialkoxide, contacting the first compound with a second compound to form a solution of reaction product “A”, wherein the second compound is generally represented by the formula:
Ti(OR1)4;
wherein R1 is selected from C1 to C10 linear to branched alkyls, contacting the solution of reaction product “A” with a first metal halide to form a solid reaction product “B”, contacting solid reaction product “B” with a second metal halide, to form reaction product “C” and contacting reaction product “C” with reducing agent to form a catalyst component.

主权项

1. A process of forming a catalyst system comprising:
providing a magnesium dialkoxide as a first compound; contacting the magnesium dialkoxide with a third compound in the presence of a second compound to form a solution of reaction product “A”, wherein the second compound is TNBT or Ti(O-2-ethylhexyl)4, and the third compound is generally represented by the formula:
Al(OR2)3 wherein R2 is selected from C1 to C10 linear or branched alkyls contacting the solution of reaction product “A” with a first metal halide to form a solid reaction product “B”; contacting solid reaction product “B” with a second metal halide to form reaction product “C”; and contacting reaction product “C” with a reducing agent to form a catalyst component, wherein the reducing agent is selected from the group consisting of trimethyl aluminum, triisobutyl aluminum, triethyl aluminum, n-octyl aluminum and n-hexyl aluminum.