Patent US2626952A successfully refreshed from Google Patents.
US2626952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diglyceride preparation
Assignee: Procter and Gamble Co
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Filing: 1949-10-26
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Granted: 1953-01-27
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Expires: 1969-10-26
Abstract
No abstract record available.
Inventors
- 👤 Lange Willy
- 👤 Fredric J Baur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:14
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/04; C11C3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A PROCESS OF PREPARING 1,3-DIGLYCERIDE OF A SINGLE FATTY ACID, WHICH COMPRISES FORMING A LIQUID SINGLE-PHASE SYSTEM OF A TRIGLYCERIDE OF A NORMALLY HIGHER MOLECULAR WEIGHT OF FATTY ACID HAVING FROM 10 TO 22 CARBON ATOMS AND MELTING POINT ABOVE 75* F. AND FROM ABOUT 20 PER CENT TO ABOUT 75 PER CENT THEREOF BY WEIGHT OF TRIGLYCERIDE OF LOWER MOLECULAR WEIGHT FATTY ACID HAVING FROM 2 TO 6 CARBON ATOMS; CATALYTICALLY EFFECTING INTERESTRIFICATION WHOLLY IN THE LIQUID PHASE; ADDING TO THE INTERESTERIFIED MIXTURE SUBSTANTIALLY ANHYDROUS GLYCEROL IN AMOUNT AT LEAST EQUAL TO THE AMOUNT STOICHIOMETRICALLY NECESSARY TO CONVERT THE HIGH MOLECULAR WEIGHT TRIGLYCERIDE TO DIGLYCERIDE, AND CATALYTICALLY ALCOHOLIZING THE MIXTURE TO FORM A SINGLE LIQUID PHASE; REDUCING THE TEMPERATURE OF THE SYSTEM TO THAT TEMPERATURE AT WHICH 1,3-DIGLYCERIDE OF THE NORMALLY SOLID HIGHER MOLECULAR WEIGHT FATTY ACID FORMED IN THE REACTION PRECIPITATES AS A SOLID PHASE, CONTINUING INTERESTERIFICATION IN THE LIQUID PHASE OF THE SYSTEM IN THE PRESENCE OF A LOW TEMPERATURE INTERESTERIFICATIONI CATALYST WHILE SAID HIGHER FATTY ACID DIGLYCERIDE PRECIPITATES, INACTIVATING THE LOW TEMPERATURE INTERESTERIFICATION CATALYST WHILE MAINTAINING PRECIPITATED FATTY ACID DIGLYCERIDE AS A SOLID PHASE; AND SEPARATING FATTY ACID DIGLYCERIDE FROM THE SYSTEM.
Claim 2
Dependent Claim
196 words
A PROCESS OF PREPARING 1,3-DIGLYCERIDE OF A SINGLE FATTY ACID, WHICH COMPRISES FORMING A LIQUID SINGLE-PHASE SYSTEM OF A TRIGLYCERIDE OF A NORMALLY HIGHER MOLECULAR WEIGHT OF FATTY ACID HAVING FROM 10 TO 22 CARBON ATOMS AND MELTING POINT ABOVE 75* F. AND FROM ABOUT 20 PER CENT TO ABOUT 75 PER CENT THEREOF BY WEIGHT OF TRIGLYCERIDE OF LOWER MOLECULAR WEIGHT FATTY ACID HAVING FROM 2 TO 6 CARBON ATOMS; CATALYTICALLY EFFECTING INTERESTRIFICATION WHOLLY IN THE LIQUID PHASE; ADDING TO THE INTERESTERIFIED MIXTURE SUBSTANTIALLY ANHYDROUS GLYCEROL IN AMOUNT AT LEAST EQUAL TO THE AMOUNT STOICHIOMETRICALLY NECESSARY TO CONVERT THE HIGH MOLECULAR WEIGHT TRIGLYCERIDE TO DIGLYCERIDE, AND CATALYTICALLY ALCOHOLIZING THE MIXTURE TO FORM A SINGLE LIQUID PHASE; REDUCING THE TEMPERATURE OF THE SYSTEM TO THAT TEMPERATURE AT WHICH 1,3-DIGLYCERIDE OF THE NORMALLY SOLID HIGHER MOLECULAR WEIGHT FATTY ACID FORMED IN THE REACTION PRECIPITATES AS A SOLID PHASE, CONTINUING INTERESTERIFICATION IN THE LIQUID PHASE OF THE SYSTEM IN THE PRESENCE OF A LOW TEMPERATURE INTERESTERIFICATIONI CATALYST WHILE SAID HIGHER FATTY ACID DIGLYCERIDE PRECIPITATES, INACTIVATING THE LOW TEMPERATURE INTERESTERIFICATION CATALYST WHILE MAINTAINING PRECIPITATED FATTY ACID DIGLYCERIDE AS A SOLID PHASE; AND SEPARATING FATTY ACID DIGLYCERIDE FROM THE SYSTEM.
References Cited (Backward Citations)
US2442534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |