Bimetallic indenoindolyl catalysts

Details Bimetallic indenoindolyl catalysts Bimetallic indenoindolyl catalysts

2005-01-11

2005-01-11

Bell, Mark L. (Department: 1755)

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

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

C502S113000, C526S127000, C526S134000, C526S141000, C556S011000

Reexamination Certificate

active

06841500

ABSTRACT:
Catalyst systems useful for olefin polymerization are disclosed. The catalysts include a bimetallic complex that incorporates two linked indenoindolyl groups, each of which is pi-bonded through its cyclopentadienyl ring to one of the metals. Compared with conventional indenoindolyl complexes, the bimetallic complexes of the invention have enhanced ability to give polyolefins with desirably low melt indices. Certain bimetallic indenoindolyl complexes also provide a way to broaden polymer molecular weight distribution and thereby improve processability simply by regulating the amounts of comonomer and activator used in the polymerization.

REFERENCES:
patent: 5153157 (1992-10-01), Hlatky et al.
patent: 5198401 (1993-03-01), Turner et al.
patent: 5241025 (1993-08-01), Hlatky et al.
patent: 5414180 (1995-05-01), Geerts et al.
patent: 5495035 (1996-02-01), Jordan et al.
patent: 5539124 (1996-07-01), Etherton et al.
patent: 5637659 (1997-06-01), Krishnamurti et al.
patent: 5648440 (1997-07-01), Sugano et al.
patent: 5902866 (1999-05-01), Nagy et al.
patent: 6140432 (2000-10-01), Agapiou et al.
patent: 6211311 (2001-04-01), Wang et al.
patent: 6232260 (2001-05-01), Nagy et al.
patent: 6262197 (2001-07-01), Aulbach et al.
patent: 6414162 (2002-07-01), Nagy
patent: 6440889 (2002-08-01), Tsuie
patent: 6451724 (2002-09-01), Nifant'ev et al.
patent: 6642400 (2003-11-01), Holtcamp et al.
patent: 6686306 (2004-02-01), Shih
patent: WO 9924446 (1999-05-01), None
patent: WO 0153360 (2001-07-01), None
Copending U.S. Appl. No. 10/421,062.*
Copending U.S. Appl. No. 10/421,077.*
Reddy et al.,Organometallics 8(1989) 2107.
Jungling et al.,J. Organometal, Chem. 460(1993) 191.
Soga et al.,J. Mol. Catal. A 128(1998) 273.
Noh et al.,J. Organometal. Chem. 580(1990) 90.
Tian et al., Macromol. Chem. Phys. 203(2002) 31.
Buu-Hoi and Xuong,J. Chem. Soc(1952) 2225.
J. Organometal. Chem. 518(1996) 1.
J. Am. Chem. Soc.118(1996) 8024.
Organometallics 15(1996) 4045.

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