Olefin polymerization catalyst and process for olefin...

Details Olefin polymerization catalyst and process for olefin... Olefin polymerization catalyst and process for olefin...

2005-11-08

2005-11-08

Harlan, Robert D. (Department: 1713)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

C502S167000, C526S161000, C526S171000, C526S348000

Reexamination Certificate

active

06962890

ABSTRACT:
An olefin polymerization catalyst having a high polymerization activity at high temperatures and a process for olefin polymerization using the catalyst are disclosed. The olefin polymerization catalyst comprises a transition metal compound which is represented by the following formula (I) and in which the net charge parameter of the central metal is not more than 2.00:wherein M is a transition metal atom of Group 4 to Group 5 of the periodic table, m is an integer of 1 to 5, Q is —N═ or —C(R2)═, A is —O—, —S—, —Se— or —N(R5)—, R1is an aliphatic hydrocarbon group or an alicyclic hydrocarbon group, R2to R5are each a hydrogen atom, a hydrocarbon group, an oxygen-containing group or the like, n is a number satisfying a valence of M, and X is a hydrogen atom, a halogen atom, a hydrocarbon group or the like.

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