Polymerization catalysts

Details Polymerization catalysts Polymerization catalysts

1995-03-13

1996-07-16

Beck, Shrive

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

Catalyst or precursor therefor

Organic compound containing

502117, 502152, 556 43, 556 52, 556 53, B01J 3112

Patent

active

055366902

ABSTRACT:
Novel Group IV or V metal complexes comprise cyclooctatetraene ligands. The complexes are suitable for use as catalysts for the polymerization of olefins and may be supported for use in the gas phase.
A preferred complex has the formula: ##STR1##

REFERENCES:
patent: 3932477 (1976-01-01), Schrock
patent: 5369196 (1994-11-01), Matsumoto et al.
Berno et al., "Bis(cyclooctatetraene) derivatives of Zirconium(iv) and Hafnium(iv)"J. Chem. Soc. Dalton Trans. 1991, pp. 3085-3091, (month unknown).
Berno et al., "Improved Synthesis and Structure of Solvated and Unsolvated Forms of Cyclooctatetraene - Zirconium and -Hafnium Dichloride." J. Chem. Soc. Dalton Trans. 1991. pp. 3093-3095. (month unknown).
Cloke et al. "Molecular and Electronic Structure of Bis[1,4-bis-(trimethylsilyl)cyclooctatetraene] Sandwich Complexes of Titanium and Hafnium". J. Chem. Soc. Dalton Trans. 1994. pp. 2867-2874. (month unknown).
Cloke et al. "Facile Formation of a Bridging Cyclooctatrieneyne Ligand" J. Chem. Soc., Chem. Commun. 1994. pp.1207-1208. (month unknown).

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