Polymerization catalysts and processes therefor
US6821920B2 · kind B2 · utility
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11References
17Claims
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Key dates
| Filing date | Jan 27, 2003 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Jan 27, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel catalyst systems which comprise diimine nickel complexes comprising additional ligands selected from the group consisting of acetylacetonate, hexaflourylacetylacetonate, halogens and mixtures thereof can be used with methylaluminoxane in slurry polymerization processes to polymerize mono-1-olefins and, optionally one or more higher mono-1-olefin comonomer(s), to produce high molecular weight polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.