Substituted pyridyl amine catalysts and processes for polymerizing and polymers

New ligands, compositions, metal-ligand complexes and arrays with pyridyl-amine ligands are disclosed that catalyze the polymerization of monomers into polymers. Certain of these catalysts with hafnium metal centers have high performance characteristics, including higher comonomer incorporation into...

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Bibliographic Details
Main Authors Boussie, Thomas R, Diamond, Gary M, Goh, Christopher, Hall, Keith A, LaPointe, Anne M, Leclerc, Margarete K, Lund, Cheryl, Murphy, Vince
Format Patent
LanguageEnglish
Published 28.03.2006
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Summary:New ligands, compositions, metal-ligand complexes and arrays with pyridyl-amine ligands are disclosed that catalyze the polymerization of monomers into polymers. Certain of these catalysts with hafnium metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, isobutylene or styrene. Certain of the catalysts are particularly effective at polymerizing propylene to high molecular weight isotactic polypropylene in a solution process at a variety of polymerization conditions.