Patent US3347848A successfully refreshed from Google Patents.
US3347848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of sucrose esters of fatty acids
Assignee: Individual
•
Filing: 1965-07-07
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Granted: 1967-10-17
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Expires: 1985-07-07
Abstract
No abstract record available.
Inventors
- 👤 Ismail Roshdy
- 👤 Corsepius Horst
- 👤 Simonis Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:26
CPC Classifications
C; C07; C07H; C07H13/00; C07H13/02; C07H13/04; C07H13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A PROCESS FOR THE PRODUCTION OF SUCROSE MONO-ESTERS OF FATTY ACIDS HAVING FROM 12 TO 22 CARBON ATOMS BY TRANSESTERIFICATION OF SUCROSE WITH A LOWER ALKYL ESTER OF A FATTY ACID IN INERT SOLVENTS, WHICH COMPRISES (1) FORMING A LIQUID TWO-PHASE SYSTEM, A FIRST PHASE OF THIS SYSTEM CONSISTING OF A SOLUTION OF SAID FATTY ACID ALKYL ESTER IN AN ALIPHATIC OR AROMATIC HYDROCARBON NON-POLAR SOLVENT HAVING A BOILING POINT ABOVE 100*C., AND A SECOND PHASE OF THIS SYSTEM CONTAINING SAID SUCROSE AND POTASSIUM CARBONATE CATALYST DISSOLVED IN A POLAR SOLVENT AT FROM 70-90*C., SAID SUCROSE AND SAID LOWER ALKYL ESTER OF A FATTY ACID BEING PRESENT IN ABOUT A 1:1 MOLE RATIO, (2) STIRRING THE SAID TWO PHASES AT A TEMPERATURE OF BETWEEN 40-180*C. WHILE DISTILLING OFF LOWER ALCOHOL LIBERATED BY THE TRANSESTERIFICATION REACTION, AND (3) DISTILLING OFF THE REMAINING SOLVENTS.
Claim 2
Dependent Claim
142 words
A PROCESS FOR THE PRODUCTION OF SUCROSE MONO-ESTERS OF FATTY ACIDS HAVING FROM 12 TO 22 CARBON ATOMS BY TRANSESTERIFICATION OF SUCROSE WITH A LOWER ALKYL ESTER OF A FATTY ACID IN INERT SOLVENTS, WHICH COMPRISES (1) FORMING A LIQUID TWO-PHASE SYSTEM, A FIRST PHASE OF THIS SYSTEM CONSISTING OF A SOLUTION OF SAID FATTY ACID ALKYL ESTER IN AN ALIPHATIC OR AROMATIC HYDROCARBON NON-POLAR SOLVENT HAVING A BOILING POINT ABOVE 100*C., AND A SECOND PHASE OF THIS SYSTEM CONTAINING SAID SUCROSE AND POTASSIUM CARBONATE CATALYST DISSOLVED IN A POLAR SOLVENT AT FROM 70-90*C., SAID SUCROSE AND SAID LOWER ALKYL ESTER OF A FATTY ACID BEING PRESENT IN ABOUT A 1:1 MOLE RATIO, (2) STIRRING THE SAID TWO PHASES AT A TEMPERATURE OF BETWEEN 40-180*C. WHILE DISTILLING OFF LOWER ALCOHOL LIBERATED BY THE TRANSESTERIFICATION REACTION, AND (3) DISTILLING OFF THE REMAINING SOLVENTS.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |