Process control in the presence of chromium based catalysts
US5844054A · kind A · utility
10Cited by
4References
5Claims
0Family size
Inventors
Key dates
| Filing date | Mar 21, 1997 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Mar 21, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A continuous process for the polymerization of one or more alpha-olefins in the gas phase in the presence of a chromium based catalyst, under polymerization conditions including the reaction temperature, the pressure, and the target oxygen to alpha-olefin molar ratio operating point required for desired resin properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.