Activated spray-dried ziegler-natta catalyst system
AssigneeUnivation Technologies, LLC
InventorsWesley Mariott, C. Dale Lester, Nitin Borse
Life of this patent
Estimating the term…
Abstract
An activated, titanium-based, spray-dried Ziegler-Natta catalyst system containing a titanium-based Ziegler-Natta catalyst, a carrier material, and an activator mixture comprising an effective amount of an activator mixture comprising triethylaluminum and diethylaluminum chloride for producing a substantially uniform comonomer composition distribution. Also, polyolefins; methods of making and using same; and articles containing same.
Claims8
An activated spray-dried Ziegler-Natta catalyst system comprising (A*) an activated Ziegler-Natta catalyst comprising an activated complex of TiCl3 and MgCl2, (B) a hydrophobic pre-treated fumed silica, and an effective amount of (C) an activator mixture of triethylaluminum (TEAl) and diethylaluminum chloride (DEAC) at a TEAl/DEAC weight/weight ratio of from 20:80 to 80:20;
- or a activation reaction product thereof.
Dependencies are inferred from the claim text.