Preparation of titanium (II) or zirconium (II) complexes
US5512693A · kind A · utility
19Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1994 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Dec 7, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F17/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Titanium and zirconium complexes comprising a single, cyclic, delocalized n-bonded ligand group wherein the metal of said complexes is in the +2 formal oxidation state are prepared in high yield and purity by reaction of titanium and zirconium halides in the +3 or +4 oxidation state with an n-alkyl Grignard reagent. The complexes are used as catalyst components for .alpha.-olefin polymerization catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.