Chemistry of hydrocarbon compounds – Alicyclic compound synthesis – Polycyclic product
Patent
1995-05-19
1996-11-26
Gibson, Sharon
Chemistry of hydrocarbon compounds
Alicyclic compound synthesis
Polycyclic product
585375, 585317, 556 43, 556 47, 556 53, 556 60, 556143, C07C 276
Patent
active
055787410
ABSTRACT:
In accordance with the present invention there is provided a cyclopentadienyl-type ligand represented by the formula ZA, wherein Z is a cyclopentadienyl-type group, wherein A is --YPR.sub.2, --YNR.sub.2, or --NR.sub.2, wherein Y is an alkylene group containing 1 to 24 carbon atoms, wherein each R is individually selected from alkyl groups containing 1 to 20 carbon atoms. Another aspect of the invention is to provide a metallocene represented by the formula ZAMX.sub.3, wherein Z and A are as described above, M is a Group IVB or VB transition metal, and X is a halide. Other aspects of the present invention include catalyst systems comprising the metallocenes and an organoaluminoxane, processes for preparing the above defined ligands, metallocenes and catalyst systems, and polymerization processes employing the catalyst systems.
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Alt Helmut G.
Frey Krisztina
von Massow Gabriele
Welch M. Bruce
Corvin Carl D.
Gibson Sharon
Phillips Petroleum Company
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