Bridged bi-aromatic catalysts, complexes, and methods of...

Details Bridged bi-aromatic catalysts, complexes, and methods of... Bridged bi-aromatic catalysts, complexes, and methods of...

2006-08-15

2006-08-15

Lu, Caixia (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S131000, C526S161000, C526S348000, C568S013000, C568S017000, C568S018000, C568S585000, C568S642000, C568S705000, C568S718000, C502S162000, C502S167000, C502S168000

Reexamination Certificate

active

07091292

ABSTRACT:
Ligands, compositions, metal-ligand complexes and arrays with substituted bridged bis-biaromatic ligands, and methods of making and using the same, 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 into isotactic polypropylene.

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