Olefin polymerization catalyst system

Details Olefin polymerization catalyst system Olefin polymerization catalyst system

2006-02-21

2006-02-21

Lu, Caixia (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C502S113000, C502S154000, C526S113000, C526S114000, C526S160000, C526S161000, C526S943000

Reexamination Certificate

active

07001962

ABSTRACT:
A catalyst system comprises 1) a group 4 organometallic catalyst and 2) an activator comprising a solid zirconium acid component and a metal alkyl. The catalyst system is inexpensive and is highly active for the polymerization of olefins. Preferred organometallic catalysts contain a cyclopentadienyl ligand, a phosphinimine ligand and or a ketimide ligand.

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