Process for the production of half-sandwich transition metal based catalyst precursors
US6069109A · kind A · utility
30Cited by
1References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 1, 1998 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Jul 1, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the production of a catalyst precursor comprising reacting (a) a metallocene dihalide; (b) a compound of the formula: ##STR1## wherein each Q is the same or different and is independently selected from the group consisting of O, NR, CR.sub.2, and S; E is either C or S; Z is selected from the group consisting of --OR, --NR.sub.2, --CR.sub.3, --SR, --SiR.sub.3, --PR.sub.2, --H, and a substituted or unsubstituted aryl group; and each R is independently a group containing carbon, silicon, nitrogen, oxygen, and/or phosphorus; and (c) a trialkylamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.