US2810732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In situ epoxidation of fatty acids
Assignee: —
•
Filing: —
•
Granted: 1957-10-22
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Expires: 1974-10-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:49
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/38; C07D303/40; C07D303/42; C07D301/00; C07D301/02; C07D301/03; C07D301/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE METHOD OF EPOXIDIZING AN UNSATURATED HIGHER FATTY ACID CONTAINING OLEIC ACID WHICH COMPRISES ADDING AN INERT ORGANIC HYDROCARBON SOLVENT, ACETIC ACID, AQUEOUS HYDROGEN PEROXIDE AND SULFURIC ACID TO SAID FATTY ACID AND HEATING THE REACTION MIXTURE TO SUBSTANTIALLY 50 TO 100*C. AND MAINTAINING THIS TEMPERATURE DURING THE EPOXIDATION REACTION, THE AMOUNT OF ACETIC ACID BEING 0.25 MOLE TO 1 MOLE PER MOLE OF ETHYLENIC UNSATURATION TO BE REACTED, THE AMOUNT OF SULFURIC ACID BEING BETWEEN 0.5 AND 5% BY WEIGHT BASED UPON THE WEIGHT OF ACETIC ACID AND AQUEOUS HYDROGEN PEROXIDE EMPLOYED, AND THE AMOUNT OF AQUEOUS HYDROGEN PEROXIDE BEING SUFFICIENT TO PROVIDE APPROXIMATELY ONE MOLE OF HYDROGEN PEROXIDE PER MOLE OF ETHYLENIC UNSATURATION IN SAID HIGHER FATTY ACID TO BE REACTED.
Claim 2
Independent Claim
123 words
THE METHOD OF EPOXIDIZING AN UNSATURATED HIGHER FATTY ACID CONTAINING OLEIC ACID WHICH COMPRISES ADDING AN INERT ORGANIC HYDROCARBON SOLVENT, ACETIC ACID, AQUEOUS HYDROGEN PEROXIDE AND SULFURIC ACID TO SAID FATTY ACID AND HEATING THE REACTION MIXTURE TO SUBSTANTIALLY 50 TO 100*C. AND MAINTAINING THIS TEMPERATURE DURING THE EPOXIDATION REACTION, THE AMOUNT OF ACETIC ACID BEING 0.25 MOLE TO 1 MOLE PER MOLE OF ETHYLENIC UNSATURATION TO BE REACTED, THE AMOUNT OF SULFURIC ACID BEING BETWEEN 0.5 AND 5% BY WEIGHT BASED UPON THE WEIGHT OF ACETIC ACID AND AQUEOUS HYDROGEN PEROXIDE EMPLOYED, AND THE AMOUNT OF AQUEOUS HYDROGEN PEROXIDE BEING SUFFICIENT TO PROVIDE APPROXIMATELY ONE MOLE OF HYDROGEN PEROXIDE PER MOLE OF ETHYLENIC UNSATURATION IN SAID HIGHER FATTY ACID TO BE REACTED.
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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |