US2692271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of epoxidation
Assignee: BUFFALO ELECTRO CHEM CO
•
Filing: 1950-08-23
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Granted: 1954-10-19
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Expires: 1970-08-23
Abstract
No abstract record available.
Inventors
- 👤 Frank P Greenspan
- 👤 Ralph J Gall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:08
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/38; C07D303/12; C07D303/14; C07D303/40; C07D303/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE METHOD OF EPOXIDATION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE NATURALLY OCCURRING ETHYLENIC UNSATURATED HIGHER FATTY OILS, THE ACIDS OF SUCH NATURALLY OCCURRING ETHYLENIC UNSATURATED HIGHER FATTY OILS AND THE ESTERS OF THE ACIDS OF SUCH NATURALLY OCCURRING ETHYLENIC UNSATURATED HIGHER FATTY OILS WITH THE LOWER ALKYL ALCOHOLS WHICH COMPRISES MIXING THE COMPOUND AND PERACETIC ACID AT A TEMPERATURE BELOW 20* C., REACTING THE COMPOUND WITH THE PERACETIC ACID BY AGITATION AND BY MAINTENANCE OF THE TEMPERATURE BELOW 30* C. FOR 1 TO 3 HOURS, AND THEN RAISING THE TEMPERATURE OF THE REACTION MIXTURE TO 50* C. TO 60* C. BY HEATING THE SAME AND CONTINUING HEATING IN THAT RANGE FOR ONE-HALF HOUR TO TWO HOURS SUBSTANTIALLY TO COMPLETE THE REACTION AT THE DOUBLE BOND OF THE COMPOUND.
Claim 2
Independent Claim
132 words
THE METHOD OF EPOXIDATION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE NATURALLY OCCURRING ETHYLENIC UNSATURATED HIGHER FATTY OILS, THE ACIDS OF SUCH NATURALLY OCCURRING ETHYLENIC UNSATURATED HIGHER FATTY OILS AND THE ESTERS OF THE ACIDS OF SUCH NATURALLY OCCURRING ETHYLENIC UNSATURATED HIGHER FATTY OILS WITH THE LOWER ALKYL ALCOHOLS WHICH COMPRISES MIXING THE COMPOUND AND PERACETIC ACID AT A TEMPERATURE BELOW 20* C., REACTING THE COMPOUND WITH THE PERACETIC ACID BY AGITATION AND BY MAINTENANCE OF THE TEMPERATURE BELOW 30* C. FOR 1 TO 3 HOURS, AND THEN RAISING THE TEMPERATURE OF THE REACTION MIXTURE TO 50* C. TO 60* C. BY HEATING THE SAME AND CONTINUING HEATING IN THAT RANGE FOR ONE-HALF HOUR TO TWO HOURS SUBSTANTIALLY TO COMPLETE THE REACTION AT THE DOUBLE BOND OF THE COMPOUND.
References Cited (Backward Citations)
US2485160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |