ENHANCED CONDENSED MODE OPERATION IN METHOD OF PRODUCING POLYOFEFINS WITH CHROMIUM BASED CATALYSTS
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United States of America Patent
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N/A
Issued Date -
Jan 13, 2011
app pub date -
Jul 9, 2010
filing date -
Jul 9, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
-based supported catalyst and a catalyst initiation enhancing agent is provided. The catalyst initiation enhancing agent is an aluminum alkyl solution that is present in the fluidized bed reactor at effective Al/Cr ratios between 0.2 to 1.5. A catalyst initiation enhancing system including at least one aluminum alkyl and at least one hydrocarbon solvent wherein the aluminum alkyl is present in the solvent at concentrations of less than about 0.03 molar.
First Claim
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| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| CN | A | CN102498136 | Jul 09, 2010 |
| EP | A1 | EP2451848 | Jul 09, 2010 |
| BR | A2 | BR112012000454 | Jul 09, 2010 |
| WO | A1 | WO2011006111 | Jul 09, 2010 |
International Classification(s)
- 2010 Application Filing Year
- C08F Class
- 1581 Applications Filed
- 1071 Patents Issued To-Date
- 67.75 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- C08F Class
- 9.24 % this patent is cited more than
- 14 Age