Title:
Azametallocene polymerization catalysts
Document Type and Number:
WIPO Patent Application WO1996020223
Kind Code:
A3
Abstract:
Disclosed is an azametallocene polymerization catalyst having the general formula where L is a ligand, or mixture of ligands, each having 4 to 30 carbon atoms and containing at least two fused rings, one of which is a pyrrolyl ring, Cp is a ligand containing a cyclopentadienyl group, B is a Lewis acid, Y is a halogen, alkoxy from C1 to C20, siloxy from C1 to C20, or mixtures thereof, M is titanium, zirconium, or mixtures thereof, m is 1 to 4, and n is 0 to 2, p is 0 to 2, q is 0 to 1, and m+n+q=4. The catalyst is useful in polymerizing unsaturated olefinic monomers such as ethylene.
Inventors:
ETHERTON BRADLEY P (US)
NAGY SANDOR (US)
NAGY SANDOR (US)
Application Number:
PCT/US1995/016942
Publication Date:
September 06, 1996
Filing Date:
December 18, 1995
Export Citation:
Assignee:
OCCIDENTAL CHEM CO (US)
International Classes:
C07F7/00; C07F9/572; C07F17/00; C08F4/642; C08F2/34; C08F4/64; C08F10/00; C08F10/02; C08F10/08; C08F4/659; C08F4/6592; (IPC1-7): C08F4/64; C08F10/00; C07F17/00
Foreign References:
| EP0574794A1 | 1993-12-22 | |||
| EP0617052A2 | 1994-09-28 | |||
| EP0590486A2 | 1994-04-06 |
Other References:
DATABASE WPI Derwent World Patents Index; AN 68-29949q, XP002003305
CHANDRA G.: "Amido-derivatives of metals and metalloids", JOURNAL OF CHEMICAL SOCIETY, - 1968, pages 1940 - 1945, XP002004323
CHANDRA G.: "Amido-derivatives of metals and metalloids", JOURNAL OF CHEMICAL SOCIETY, - 1968, pages 1940 - 1945, XP002004323
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