Heterocycle-amine ligands, compositions, complexes, and catalysts
US7256296B2 · kind B2 · utility
21Cited by
37References
36Claims
0Family size
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Key dates
| Filing date | Sep 21, 2005 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Sep 21, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/65912
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.