US2952698A
Expired / Lapsed
US
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Preparation of alkyl aluminum compounds
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-12-21
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Granted: 1960-09-13
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Expires: 1975-12-21
Abstract
No abstract record available.
Inventors
- 👤 Neal Arthur Homer
- 👤 Mertzweiller Joseph Kern
- 👤 Ross James Francis
- 👤 Rouge Baton
- 👤 Aldridge Clyde Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:10
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/064
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
A METHOD OF PREPARING A DI- TO TRI- C1 TO C10 ALKYL ALUMINUM COMPOUND WHICH COMPRISES CONTACTING POWCERED ALUMINUM WITH A C1 TO C10 ALKYL HALIDE IN AN INERT NON-OLEFINIC, NON-AROMATIC DILUENT BOILING ABOVE 330* C. AND SUBSTANTIALLY ABOVE THE BOILING POINT OF SAID ALKYL ALUMINUM COMPOUND, MAINTAINING THE TEMPERATURE OF THE RESULTING MIXTURE BETWEEN ABOUT 100 AND 150* C. FOR A SUFFICIENT TIME TO FORM A SEQUIHALIDE AND THEREAFTER CONTACTING SAID SEQUIHALIDE WITH AN ALKALI METAL DISPERSED IN SAID DILUENT AT A TEMPERATURE BETWEEN ABOUT 120 AND 180* C. FOR A SUFFICIENT TIME TO FORM A DI- TO TRI- C1 TO C10 ALKYL ALUMINUM COMPOUND AND DISTILLING THE MIXTURE TO RECOVER DI- TO TRI- C1 TO C10 ALKYL ALUMINUM COMPOUND WHICH IS SUBSTANTIALLY FREE OF SAID DILUENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |