US2823169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted aluminum alcoholates and methods of making same
Assignee: Reheis Co Inc
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Filing: 1955-05-23
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Granted: 1958-02-11
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Expires: 1975-05-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Peter M Brown
- 👤 Govett Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:45
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/68; C07C29/70; C07C31/00; C07C31/28; C07C31/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
116 words
IN MAKING AN ALUMINUM CHLORHYDROXYALCOHOLATE COMPLEX, THE PROCESS WHICH COMPRISES FORMING A MIXTURE OF ALUMINUM IN FINELY DIVIDED FORM, ALUMINUM CHLORIDE, WATER, AND AN ALCOHOL, IN THE PROPORTIONS OF 4-12 ATOMS OF THE FINELY DIVIDED ALUMINUM AND 1-2.9 MOLES OF THE ALCOHOL FOR EACH MOLE OF THE ALUMINUM CHLORIDE (AL2CL6) AND 2%-6% OF WATER ON THE WEIGHT OF THE ALCOHOL, MAINTAINING CONTACT BETWEEN THE FOUR REACTANTS UNTIL A SUBSTANTIAL PART OF THE CHLORINE OF THE ALUMINUM CHLORIDE IS REPLACED BY HYDROXY AND ALCOHOLATE GROUPS, AND THEN DISCONTINUING THE REACTION BEFORE ALL OF THE CHLORINE IS SO REPLACED, THE WATER INCREASING THE SPEED OF THE REACTION AND CAUSING THE RESULTING COMPLEX TO HAVE A SUBSTANTIAL HYDROXY CONTENT.
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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |