发明授权
US06846887B2 Polyolefin catalysts, production thereof and method of use 有权
聚烯烃催化剂,其生产方法和使用方法

Polyolefin catalysts, production thereof and method of use
摘要:
A method of modifying a Ziegler-Natta type polyolefin catalyst comprises contacting the Ziegler-Natta catalyst with olefin monomer to form a prepolymerized catalyst. The prepolymerized catalyst can comprise a reduced number of catalyst particles having a size of 40 microns or less. The prepolymerized catalyst can be used in a polymerization process to produce polymer fluff particles with a reduced number of polymer fluff fines than the Ziegler-Natta type catalyst.
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