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US2798079A
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Condensation of aromatic hydrocarbon derivatives with carbohydrates and related materials
Assignee: Universal Oil Products Co
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Filing: 1953-12-29
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Granted: 1957-07-02
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Expires: 1973-12-29
Abstract
No abstract record available.
Inventors
- 👤 Carl B Linn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:24
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/20; C07C39/00; C07C39/12; C07D; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C08; C08B; C08B37/00; C08B37/006; C08B37/0084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS WHICH COMPRISES REACTING A PHENOL WITH A CARBOHYDRATE SELECTED FROM THE GROUP CONSISTING OF MONOSACCHARIDES, THEIR DESOXY-AND THEIR OMEGA-CARBOXYDERIVATIVES, OLIGOSACCHARIDES, AND POLYSACCHARIDES, IN THE PRESENCE OF A HYDROGEN FLUORIDE CATALYST AT A TEMPERATURE OF FROM ABOUT -40*C. TO ABOUT 100*C. TO PRODUCE A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROXYARYL-DESOXY-ALDITOLS AND HYDROXY-ARYL-DESOXY-KETITOLS, AND RECOVERING SAID COMPOUND.
Claim 2
Dependent Claim
59 words
A PROCESS WHICH COMPRISES REACTING A PHENOL WITH A CARBOHYDRATE SELECTED FROM THE GROUP CONSISTING OF MONOSACCHARIDES, THEIR DESOXY-AND THEIR OMEGA-CARBOXYDERIVATIVES, OLIGOSACCHARIDES, AND POLYSACCHARIDES, IN THE PRESENCE OF A HYDROGEN FLUORIDE CATALYST AT A TEMPERATURE OF FROM ABOUT -40*C. TO ABOUT 100*C. TO PRODUCE A COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROXYARYL-DESOXY-ALDITOLS AND HYDROXY-ARYL-DESOXY-KETITOLS, AND RECOVERING SAID COMPOUND.
References Cited (Backward Citations)
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US2379368A
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US2400520A
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US2404340A
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US2460803A
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US2472276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |