US3707535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing mono- and polyglycosides
Assignee: Zeneca Inc
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Filing: 1969-07-24
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Granted: 1972-12-26
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Expires: 1989-07-24
Abstract
Abstract DISCLOSED IS AN IMPROVED PROCESS FOR THE PREPARATION OF GLYCOSIDES WHICH COMPRISES REACTING A COMPOUND SELECTED FROM A GROUP CONSISTING OF MONOSACCHARIDES AND COMPOUNDS HYDROLYZABLE TO MONOSACCHARIDES WITH A MONOHYDRIC ALCOHOL HAVING FROM 8 TO 25 CARBON ATOMS, IN THE PRESENCE OF AN ACID CATALYST AND IN THE PRESENCE OF A SOLVENT WHICH IS AN ALIPHATIC ETHER ALCOHOL HAVING A BOILING POINT AT ATMOSPHERIC PRESSURE OF NO MORE THAN ABOUT 200*C. THE GLYCOSIDES PRODUCED BY THE IMPROVED PROCESS OF THE PRESENT INVENTION MAY BE EMPLOYED FOR A VARIETY OF PURPOSE SUCH AS DETERGENTS, GELLING AGENTS, LUBRICANTS, WETTING AGENTS, DYEING ASSISTANTS, TEXTILE SOFTENERS, AND FOOD EMULSIFIERS.
Inventors
- 👤 Baak W Lew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:02
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; C08; C08B; C08B37/00; C11; C11D; C11D1/00; C11D1/66; C11D1/662
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |