Process for the preparation of solid catalyst
US11384170B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Jan 24, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2420/07
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the preparation of a solid olefin polymerization catalyst or a solid olefin polymerization catalyst component comprising the steps of: (a) forming a liquid/liquid emulsion of (i) a first organic liquid comprising at least one olefin polymerization catalyst component and (ii) an optionally halogenated hydrocarbon liquid immiscible therewith; where the first organic liquid forms the dispersed phase and the optionally halogenated hydrocarbon liquid forms the continuous phase of the liquid/liquid emulsion and wherein the dispersed phase forms droplets in the continuous phase; and (b) transforming the droplets of the dispersed phase to solid particulate particles comprising said at least one olefin polymerization catalyst component, wherein the liquid/liquid emulsion is stabilized with a solid particulate stabilizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.