Bridged bi-aromatic catalysts, complexes, and methods of using the same
US7091292B2 · kind B2 · utility
14Cited by
35References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2005 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Jun 29, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.