Process for the isomerization of metallocene compounds
US7465688B2 · kind B2 · utility
3Cited by
3References
13Claims
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Key dates
| Filing date | Sep 7, 2004 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Jan 17, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An isomerization process comprising the step of contacting a slurry or a solution comprising the meso or meso-like form of one or more bridged metallocene compounds of group 4 of the Periodic Table of the Elements having C2 or C2-like symmetry with an isomerization catalyst of formula (I) [R4W]+X− (I) wherein: W is a nitrogen or a phosphorus atom; R, equal to or different from each other, are C1-C40 hydrocarbon radicals and X− is an halide atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.