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

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

2006-10-24

2006-10-24

Lu, Caixia (Department: 1713)

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

Organic compounds

Oxygen containing

C568S631000, C568S642000, C568S718000, C564S305000, C564S426000

Reexamination Certificate

active

07126031

ABSTRACT:
New ligands and compositions 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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