Chromium-based catalysts in mineral oil for production of polyethylene
US7202313B2 · kind B2 · utility
7Cited by
8References
8Claims
0Family size
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Key dates
| Filing date | Mar 4, 2004 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Mar 4, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for polymerizing polyethylene with chromium-based catalysts wherein one or more supported chromium-based catalysts is mixed with mineral oil to form a slurry and the slurry is then introduced into a polymerization reactor, especially a gas-phase polymerization reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.