Titanium(II) or zirconium(II) complexes and addition polymerizat

Details Titanium(II) or zirconium(II) complexes and addition polymerizat Titanium(II) or zirconium(II) complexes and addition polymerizat

1994-05-12

1995-11-28

Nagumo, Mark

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

Organic compounds

Heavy metal containing

556 52, 556 7, 556 20, 556 28, 526126, 526127, 526133, 526134, 526160, 526170, 502103, 502117, C08F 4642, C07F 1700

Patent

active

054709938

ABSTRACT:
Novel titanium or zirconium complexes containing one and only one cyclic delocalized, anionic, .pi.-bonded group wherein the metal is in the +2 formal oxidation state and having a bridged ligand structure, also referred to as constrained geometry complexes; catalytic derivatives of such complexes; methods of preparation; and the use thereof as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.

REFERENCES:
patent: 5198401 (1993-03-01), Turner et al.
patent: 5321106 (1994-06-01), La Pointe
patent: 5356723 (1994-09-01), Neithamer et al.
patent: 5374696 (1994-12-01), Rosen et al.
Hawley's Condensed Chemical Dictionary, 11th Ed Van Nostrand Reinhold, New York, 1987, 385, 424, 854.
Yasuda, et al., Organometallics, 1, 388 (1982).
Yasuda et al., Acc. Chem. Res. 18, 120 (1985).
Erker, et al., Adv. Organometl. Chem., 24, 1, (1985).
Blenkers, et al., Organometallics, 6, 459-469 (1987).

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