Polymerization catalyst and process
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United States of America Patent
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Oct 30, 2001
Grant Date -
N/A
app pub date -
Feb 1, 1999
filing date -
Jun 12, 1996
priority date (Note) -
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Abstract
A catalyst is provided for addition polymerization of olefinically unsaturated monomers comprising a first compound MY, wherein M is a transition metal in a low valency state or a transition metal in a low valency state coordinated to at least one coordinating non-charged ligand, Y is a monovalent, divalent or polyvalent counterion; an initiator compound comprising a homolytically breakable bond with a halogen atom; and an organodiimine, where at least one of the nitrogens of the diimine is not part of an aromatic ring. A catalyst for addition polymerization of olefinically unsaturated monomers is also provided comprising a first component of Formula [ML].sup.n+ A.sup.n-, wherein M=a transition metal of low valency state, L=an organodiimine where at least one of the nitrogens of the diimine is not part of an aromatic ring, A=an anion, n=an integer of 1 to 3, m=an integer of 1 or 2; e) An initiator compound comprising a homolytically breakable bond with a halogen atom. Preferably, the organodiimine is a 1,4-diaza-1,3-butadiene, a pyridine carbaldelyde imine, an oxazolidone or a quinoline carbaldehyde. Processes for using the catalysts are also disclosed.
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