Group 4 metal diene complexes and addition polymerization cataly

Details Group 4 metal diene complexes and addition polymerization cataly Group 4 metal diene complexes and addition polymerization cataly

1994-06-28

1996-01-23

Nagumo, Mark

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

Organic compounds

Heavy metal containing

556 52, 556 7, 556 70, 556 78, 502103, 502117, 502152, 526126, 526127, 526134, C08F 4643, C08F 4642

Patent

active

054866324

ABSTRACT:
Novel Group 4 metal complexes containing one and only one cyclic delocalized, anionic, .pi.-bonded group wherein the metal is in the +4 formal oxidation state and having a bridged ligand structure, also referred to as constrained geometry complexes and a conjugated diene divalent anionic ligand group; catalytic derivatives of such complexes including novel zwiterionic complexes; and the use thereof as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.

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