Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2008-06-17
2008-06-17
Lu, Caixia (Department: 1796)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S103000, C502S104000, C502S167000, C502S168000, C526S161000, C526S172000
Reexamination Certificate
active
07387980
ABSTRACT:
Ligands, compositions, and metal-ligand complexes that incorporate heterocycle-amine compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene to form isotactic polypropylene.
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Diamond Gary M.
LaPointe Anne M.
Leclerc Margarete K.
Longmire James
Nava-Salgado Victor
Armstrong Teasdale LLP
Lu Caixia
Symyx Technologies Inc.
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