Phosphine ligand-metal compositions, complexes, and catalysts for ethylene trimerizations
US8404915B2 · kind B2 · utility
1Cited by
70References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2007 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Jul 19, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a method to selectively oligomerize olefins comprising contacting olefins with: 1) at least one diaryl-substituted diphosphine ligand; 2) a chromium metal precursor; and 3) optionally, one or more activators. In a particular embodiment, the method for selectively oligomerizing olefins includes trimerizing ethylene to selectively form 1-hexene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.