US2919283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of epoxidation
Assignee: FMC Corp
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Filing: 1954-10-18
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Granted: 1959-12-29
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Expires: 1974-10-18
Abstract
No abstract record available.
Inventors
- 👤 Frank P Greenspan
- 👤 Ralph J Gall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:12
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/38; C07D303/40; C07D303/42; B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/08; B01J31/10; B01J2231/00; B01J2231/70; B01J2231/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE METHOD OF EPOXIDIZING AN ESTER OF AN UNSATURATED HIGHER FATTY ACID WHICH COMPRISES MIXING ACETIC ACID, AQUEOUS HYDROGEN PEROXIDE AND AN ACID CATION EXCHANGE RESIN FROM THE GROUP CONSISTING OF NUCLEAR SULFONIC AND PHENOLIC METHYLENE SWULFONIC CATION EXCHANGE RESINS, WITH SAID ESTER AND HEATING THE MIXTURE TO THE RANGE 50* C. TO 100*C. AND MAINTAINING THIS TEMPERATURE DURING THE EPOXIDATION REACTION THE AMOUNT OF ACETIC ACID BEING FROM ABOUT 0.25 MOL TO 1.0 MOL PER MOL OF UNSATURATION TO BE REACTED, THE AMOUNT OF HYDROGEN PEROXIDE BEING ABOUT ONE MOL PER MOL OF SATURATION TO BE REACTED AND THE AMOUNT OF CATION EXCHANGE RESIN BEIN AT LEAST ABOUT 5-25% BY WEIGHT BASED ON SAID HYDROGEN PEROXIDE AND SAID ACETIC ACID.
Claim 2
Independent Claim
121 words
THE METHOD OF EPOXIDIZING AN ESTER OF AN UNSATURATED HIGHER FATTY ACID WHICH COMPRISES MIXING ACETIC ACID, AQUEOUS HYDROGEN PEROXIDE AND AN ACID CATION EXCHANGE RESIN FROM THE GROUP CONSISTING OF NUCLEAR SULFONIC AND PHENOLIC METHYLENE SWULFONIC CATION EXCHANGE RESINS, WITH SAID ESTER AND HEATING THE MIXTURE TO THE RANGE 50* C. TO 100*C. AND MAINTAINING THIS TEMPERATURE DURING THE EPOXIDATION REACTION THE AMOUNT OF ACETIC ACID BEING FROM ABOUT 0.25 MOL TO 1.0 MOL PER MOL OF UNSATURATION TO BE REACTED, THE AMOUNT OF HYDROGEN PEROXIDE BEING ABOUT ONE MOL PER MOL OF SATURATION TO BE REACTED AND THE AMOUNT OF CATION EXCHANGE RESIN BEIN AT LEAST ABOUT 5-25% BY WEIGHT BASED ON SAID HYDROGEN PEROXIDE AND SAID ACETIC ACID.
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) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |