Olefin polymerization process
US6780949B2 · kind B2 · utility
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4References
8Claims
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Key dates
| Filing date | Nov 15, 2002 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Dec 31, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2410/07
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Olefin polymerizations employing a complex of a Group 8, 9, or 10 transition metal with a bidentate ligand as part of the polymerization catalyst system are improved by adding to the polymerization a silicon compound in which at least one atom of a Group 15 or 16 element is bound to a silicon atom. The polymerizations often have increased polymer productivity and/or the polymerization catalyst has a longer half life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.