Cyclopentadienyl-type ligands, metallocenes, catalyst systems, p

Details Cyclopentadienyl-type ligands, metallocenes, catalyst systems, p Cyclopentadienyl-type ligands, metallocenes, catalyst systems, p

1994-09-09

1996-10-08

Caldarola, Glenn A.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 43, C07F 900, C07F 1700

Patent

active

055632840

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.

REFERENCES:
patent: 5349100 (1994-09-01), Mintz

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