Efficiency of a pre-polymerized catalyst

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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526124, 526127, 526159, 526351, 526128, 502104, 502108, C08F 464

Patent

active

051225832

ABSTRACT:
The invention provides a process for increasing the efficiency of pre-polymerized catalysts used in the polymerization of olefins. The invention includes contacting a pre-polymerized catalyst with a cocatalyst or a mixture of cocatalyst and an electron donor prior to introducing the catalyst into a polymerization reaction zone.

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