US4052428A
Expired / Lapsed
US
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Stable aluminum alkoxide solutions
Assignee: Stauffer Chemical Co
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Filing: 1975-12-15
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Granted: 1977-10-04
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Expires: 1995-12-15
Abstract
Abstract Stable solutions of aluminum alkoxides are prepared by reacting aluminum metal with a mixture containing isobutyl alcohol and n-butyl alcohol in which the mole ratio of isobutyl alcohol to n-butyl alcohol is from 1:1 to 20:1.
Inventors
- 👤 Robert Wendell Lerner
- 👤 Russell S. Towers
- 👤 John Robert Flasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:23
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/28; C07C31/32; C07C29/00; C07C29/68; C07C29/70; C07F; C07F5/00; C07F5/06; C07F5/069
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
68 words
An improved process for preparing stable solutions of aluminum butoxides by reacting metallic aluminum with butyl alcohol, the improvement which comprises reacting metallic aluminum with a mixture containing isobutyl alcohol and n-butyl alcohol at the reflux temperature of the alcohols but below the decomposition temperature of the aluminum butoxides, said alcohols are present in a mol ratio of isobutyl alcohol to n-butyl alcohol of from 1:1 to 20:1.
Claim 2
Dependent Claim
68 words
An improved process for preparing stable solutions of aluminum butoxides by reacting metallic aluminum with butyl alcohol, the improvement which comprises reacting metallic aluminum with a mixture containing isobutyl alcohol and n-butyl alcohol at the reflux temperature of the alcohols but below the decomposition temperature of the aluminum butoxides, said alcohols are present in a mol ratio of isobutyl alcohol to n-butyl alcohol of from 1:1 to 20:1.
Claim 3
Dependent Claim
25 words
The improved process of claim 1 wherein the metallic aluminum is contacted with the mixture of alcohols in the vapor phase to produce aluminum butoxides.
Claim 4
Dependent Claim
15 words
The improved process of claim 2 wherein the metallic aluminum is packed in a column.
Claim 5
Dependent Claim
38 words
A stable alcohol solution containing from 30 to 90 weight percent of aluminum butoxides which is obtained from the reaction of isobutyl alcohol and n-butyl alcohol in a mol ratio of from 1:1 to 20:1 with metallic aluminum.
Claim 6
Dependent Claim
38 words
A stable alcohol solution containing from 30 to 90 weight percent of aluminum butoxides which is obtained from the reaction of isobutyl alcohol and n-butyl alcohol in a mol ratio of from 1:1 to 20:1 with metallic aluminum.
References Cited (Backward Citations)
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US2687423A
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US2845447A
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US2965663A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |