Olefin polymerization catalyst system

Details Olefin polymerization catalyst system Olefin polymerization catalyst system

2006-08-22

2006-08-22

Harlan, Robert D. (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S171000, C526S172000, C526S348000, C502S155000, C502S167000

Reexamination Certificate

active

07094848

ABSTRACT:
This invention relates to a compound represented by the formula:wherein M is selected from groups 3–11 of the periodic table;L1represents a formal anionic ligand, L2represents a formal neutral ligand, a is an integer greater than or equal to 1; b is greater than or equal to 0; c is greater than or equal to 1, E is nitrogen or phosphorus, Ar0is arene, R1–R4are, each independently, selected from hydrogen, hydrocarbyl, substituted hydrocarbyl or functional group, provided however that R3and R4do not form a naphthyl ring, N is nitrogen and O is oxygen.This invention further relates to a process to oligomerize and/or polymerize unsaturated monomers using the above compositions, optionally combined with an activator.

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