US3053830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing carbohydrate mono-esters
Assignee: Monsanto Chemicals Ltd
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Filing: 1959-11-02
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Granted: 1962-09-11
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Expires: 1979-11-02
Abstract
No abstract record available.
Inventors
- 👤 Van R Gaertner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:02
CPC Classifications
C; C07; C07H; C07H13/00; C07H13/02; C07H13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
THE METHOD OF MAKING A WATER SOLUBLE MONOSUCROSE MONOVALENT ALIPHATIC RADICAL-CONTAINING SUCCINATE ESTER SURFACTANT WHICH COMPRISES MIXING AND REACTING SUCROSE WITH ABOUT AN EQUIMOLAR AMOUNT OF A MONOVALENT ALIPHATIC RADICAL-CONTAINING SUCCINIC ANHYDRIDE IN THE PRESENCE OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF DIALKYLACYLAMIDES AND DIALKYLSULFOXIDES HAVING FROM 1 TO 6 CARBON ATOMS IN THE ALKYL GROUPS, AND A TERTIARY AMINE CATALYST, SAID IN THE ALKYL GROUPS, AND A TERTIARY PHATIC RADICAL SIDE CHAIN OF FORM 6 TO 20 CARBON ATOMS AT A TEMPERATURE OF FROM 50*C. TO 120*C.
Claim 2
Independent Claim
90 words
THE METHOD OF MAKING A WATER SOLUBLE MONOSUCROSE MONOVALENT ALIPHATIC RADICAL-CONTAINING SUCCINATE ESTER SURFACTANT WHICH COMPRISES MIXING AND REACTING SUCROSE WITH ABOUT AN EQUIMOLAR AMOUNT OF A MONOVALENT ALIPHATIC RADICAL-CONTAINING SUCCINIC ANHYDRIDE IN THE PRESENCE OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF DIALKYLACYLAMIDES AND DIALKYLSULFOXIDES HAVING FROM 1 TO 6 CARBON ATOMS IN THE ALKYL GROUPS, AND A TERTIARY AMINE CATALYST, SAID IN THE ALKYL GROUPS, AND A TERTIARY PHATIC RADICAL SIDE CHAIN OF FORM 6 TO 20 CARBON ATOMS AT A TEMPERATURE OF FROM 50*C. TO 120*C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |