US2634279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of monoglycerides
Assignee: Eastman Kodak Co
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Filing: 1949-07-16
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Granted: 1953-04-07
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Expires: 1969-07-16
Abstract
No abstract record available.
Inventors
- 👤 Noel H Kuhrt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:43
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/04; C11C3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE PROCESS WHICH COMPRISES REACTING FATTY MATERIAL AND GLYCERINE IN THE PRESENCE OF AN ESTER-INTERCHANGE CATALYST AND THEREBY FORMING AN EQUILIBRIUM COMPOSITION INCLUDING A SUBSTANTIAL AMOUNT OF MONOGLYCERIDE, AND THEREAFTER RECOVERING SUBSTANTIALLY ALL OF SAID MONOGLYCERIDE FROM SAID COMPOSITION BEFORE ELAPSE OF THE REVERSION TIME INTERVAL WHICH IS IN THE RANGE BELOW THE MAXIMUM VALUES OF 2 MINUTES AT 400* C. 10 MINUTES AT 200* C. AND 480 MINUTES AT 100* C., SAID RECOVERING BEING EFFECTED BY COOLING SAID COMPOSITION AND SEPARATING UNREACTED GLYCERINE THEREFROM AND THEREAFTER, WHILE SAID COMPOSITION CONTAINS SAID CATALYST IN ACTIVE FORM, SEPARATING SAID MONOGLYCERIDE FROM SAID COMPOSITION IN A THIN FILM AND VACUUM DISTILLING MONOGLYCERIDE FROM SAID FILM, BOTH SAID SEPARATINGS BEING COMPLETED WITHIN THE REVERSION TIME INTERVAL.
Claim 2
Dependent Claim
123 words
THE PROCESS WHICH COMPRISES REACTING FATTY MATERIAL AND GLYCERINE IN THE PRESENCE OF AN ESTER-INTERCHANGE CATALYST AND THEREBY FORMING AN EQUILIBRIUM COMPOSITION INCLUDING A SUBSTANTIAL AMOUNT OF MONOGLYCERIDE, AND THEREAFTER RECOVERING SUBSTANTIALLY ALL OF SAID MONOGLYCERIDE FROM SAID COMPOSITION BEFORE ELAPSE OF THE REVERSION TIME INTERVAL WHICH IS IN THE RANGE BELOW THE MAXIMUM VALUES OF 2 MINUTES AT 400* C. 10 MINUTES AT 200* C. AND 480 MINUTES AT 100* C., SAID RECOVERING BEING EFFECTED BY COOLING SAID COMPOSITION AND SEPARATING UNREACTED GLYCERINE THEREFROM AND THEREAFTER, WHILE SAID COMPOSITION CONTAINS SAID CATALYST IN ACTIVE FORM, SEPARATING SAID MONOGLYCERIDE FROM SAID COMPOSITION IN A THIN FILM AND VACUUM DISTILLING MONOGLYCERIDE FROM SAID FILM, BOTH SAID SEPARATINGS BEING COMPLETED WITHIN THE REVERSION TIME INTERVAL.
References Cited (Backward Citations)
US2383581A
Cited
US2496328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |