Patent US3141012A successfully refreshed from Google Patents.
US3141012A
Expired / Lapsed
US
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Recovering solid polyhydric alcohols from transesterification reaction masses
Assignee: COLONIAL SUGARS Inc
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Filing: 1960-06-01
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Granted: 1964-07-14
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Expires: 1980-06-01
Abstract
No abstract record available.
Inventors
- 👤 Charles J O'boyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:25
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/03; C07H; C07H13/00; C07H13/02; C07H13/04; C07H13/06; C07H13/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
158 words
A PROCESS OF REFINING ESTERS OF SOLID POLYHYDRIC ALIPHATIC NON-REDUCING ALCOHOLS AND CARBOXY ACIDS, SAID ALCOHOLS CONTAINING 4 TO 18 CARBON ATOMS, AT LEAST FOUR HYDROXYL GROUPS, BEING FREE OF GROUPS WHICH INTERFERE WITH TRANSESTERIFICATION REACTIONS AND HAVING MELTING POINTS AT LEAST AS HIGH AS 85*C., AND SAID ACIDS HAVING FROM 2 TO ABOUT 32 CARBON ATOMS, BEING FREE OF GROUPS WHICH WOULD INTERFERE WITH THE TRANSESTERIFICATION REACTION, AND CONTAINING NO MORE THAN TWO OXYGEN ATOMS IN ADDITION TO THOSE IN THE CARBOXYL GROUP, WHICH ESTERS HAVE BEEN SYNTHESIZED BY TRANSESTERIFICATION REACTION IN THE PRESENCE OF ALKALINE CATALYST BETWEEN SAID SOLID POLYHYDRIC ALCOHOL AND AN ESTER OF SAID CARBOXY ACID AND AN ALCOHOL WHICH DOES NOT INTERFERE WITH THE TRANSESTERIFICATION REACTION IN EFFECTIVE REACTION RATIOS OF AT LEAST 1.2 MOLES OF SOLID POLYHYDRIC ALCOHOL CHARGED PER EQUIVALENT OF ESTER REAGENT THAT REACTS BY TRANSESTERIFICATION, SAID INTERESTERIFICATION TAKING PLACE IN A PRIMARY REACTION SOLVENT FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
158 words
A PROCESS OF REFINING ESTERS OF SOLID POLYHYDRIC ALIPHATIC NON-REDUCING ALCOHOLS AND CARBOXY ACIDS, SAID ALCOHOLS CONTAINING 4 TO 18 CARBON ATOMS, AT LEAST FOUR HYDROXYL GROUPS, BEING FREE OF GROUPS WHICH INTERFERE WITH TRANSESTERIFICATION REACTIONS AND HAVING MELTING POINTS AT LEAST AS HIGH AS 85*C., AND SAID ACIDS HAVING FROM 2 TO ABOUT 32 CARBON ATOMS, BEING FREE OF GROUPS WHICH WOULD INTERFERE WITH THE TRANSESTERIFICATION REACTION, AND CONTAINING NO MORE THAN TWO OXYGEN ATOMS IN ADDITION TO THOSE IN THE CARBOXYL GROUP, WHICH ESTERS HAVE BEEN SYNTHESIZED BY TRANSESTERIFICATION REACTION IN THE PRESENCE OF ALKALINE CATALYST BETWEEN SAID SOLID POLYHYDRIC ALCOHOL AND AN ESTER OF SAID CARBOXY ACID AND AN ALCOHOL WHICH DOES NOT INTERFERE WITH THE TRANSESTERIFICATION REACTION IN EFFECTIVE REACTION RATIOS OF AT LEAST 1.2 MOLES OF SOLID POLYHYDRIC ALCOHOL CHARGED PER EQUIVALENT OF ESTER REAGENT THAT REACTS BY TRANSESTERIFICATION, SAID INTERESTERIFICATION TAKING PLACE IN A PRIMARY REACTION SOLVENT FROM THE GROUP CONSISTING OF:
Claim 3
Dependent Claim
13 words
A PROCESS ACCORDING TO CLAIM 1, WHEREIN THE SOLID POLYHYDRIC ALCOHOL IS EHTYL-D-GLUCOSIDE.
References Cited (Backward Citations)
US2893990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |