Methods of using heterocycle-amine ligands, compositions, complexes, and catalysts
US7387980B2 · kind B2 · utility
4Cited by
37References
32Claims
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Key dates
| Filing date | Sep 21, 2005 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Feb 13, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldOrganic fine chemistry
- 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.