Bridged bi-aromatic ligands, catalysts, processes for...

Details Bridged bi-aromatic ligands, catalysts, processes for... Bridged bi-aromatic ligands, catalysts, processes for...

2005-03-22

2005-03-22

Lu, Caixia (Department: 1713)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

C502S103000, C502S167000, C526S132000, C526S133000, C526S134000, C526S161000, C526S165000, C526S172000

Reexamination Certificate

active

06869904

ABSTRACT:
New ligands, compositions, metal-ligand complexes and arrays with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers 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 into isotactic polypropylene.

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