Olefin polymerization catalyst composition having increased acti

Details Olefin polymerization catalyst composition having increased acti Olefin polymerization catalyst composition having increased acti

1999-05-15

2000-12-26

Wu, David W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526127, 526943, 502117, 502126, 502152, 502155, 502104, C08F 442

Patent

active

061661546

ABSTRACT:
The invention relates to a process for the polymerization of olifins in the presence of an activated catalyst composition comprising a single site catalyst precursor and an activating cocatalyst, which comprises contacting outside of a polymerization reactor a single site catalyst precursor with an activating cocatalyst before, during, or after contacting the single site catalyst precursor with a weakly coordinating electron donor that does not substantially polymerize during either contacting.

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