Patent US2694735A successfully refreshed from Google Patents.
US2694735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing oxygenated compounds
Assignee: Eastman Kodak Co
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Filing: 1949-12-06
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Granted: 1954-11-16
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Expires: 1969-12-06
Abstract
No abstract record available.
Inventors
- 👤 David C Hull
- 👤 Jr Hugh J Hagemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:04
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A PROCESS OF PRODUCING PREDOMINANT YIELDS OF STRAIGHT CHAIN ALDEHYDES, COMPRISING INCORPORATING A CATALYST SELECTED FROM THE GROUP CONSISTING OF THE METALS COBALT AND ION, THEIR CARBONYLS AND CARBONYL FORMING COMPOUNDS THEREOF, INTO A REACTION MEDIUM, THE MAJOR PORTION OF WHICH IS A LIQUID SELECTED FROM THE GROUP CONSISTING OF (A) LOWER ALIPHATIC KETONE, AND (B) A MIXTURE OF LOWER ALIPHATIC ACETAL AND LOWER ALIPHATIC ALCOHOL THERE BEING PRESENT 0.1 TO 20 VOLUME PERCENT OF WATER BASED ON THE VOLUME OF THE OTHER INGREDIENTS OF THE MEDIUM IN EACH INSTANCE, AND INTRODUCING A STRAIGHT CHAIN LOWER ALIPHATIC OLEFIN HAVING ONE LESS CARBON ATOM THAN THE DESIRED ALDEHYDE PRODUCT, CARBON MONOXIDE AND HYDROGEN AS REACTANTS INTO THE CATALYST CONTAINING REACTION MEDIUM WHERE THEY REACT AT 90-175* C. AND 40-700 ATM., THE WATER BEING PRESENT IN AN AMOUNT SUFFICIENT TO INCREASE THE RATE OF REACTION AND THE RATIO OF STRAIGHT CHAIN TO BRANCHED CHAIN ALDEHYDE PRODUCED, COMPARED TO OPERATION IN THE ABSENCE OF WATER.
Claim 2
Dependent Claim
162 words
A PROCESS OF PRODUCING PREDOMINANT YIELDS OF STRAIGHT CHAIN ALDEHYDES, COMPRISING INCORPORATING A CATALYST SELECTED FROM THE GROUP CONSISTING OF THE METALS COBALT AND ION, THEIR CARBONYLS AND CARBONYL FORMING COMPOUNDS THEREOF, INTO A REACTION MEDIUM, THE MAJOR PORTION OF WHICH IS A LIQUID SELECTED FROM THE GROUP CONSISTING OF (A) LOWER ALIPHATIC KETONE, AND (B) A MIXTURE OF LOWER ALIPHATIC ACETAL AND LOWER ALIPHATIC ALCOHOL THERE BEING PRESENT 0.1 TO 20 VOLUME PERCENT OF WATER BASED ON THE VOLUME OF THE OTHER INGREDIENTS OF THE MEDIUM IN EACH INSTANCE, AND INTRODUCING A STRAIGHT CHAIN LOWER ALIPHATIC OLEFIN HAVING ONE LESS CARBON ATOM THAN THE DESIRED ALDEHYDE PRODUCT, CARBON MONOXIDE AND HYDROGEN AS REACTANTS INTO THE CATALYST CONTAINING REACTION MEDIUM WHERE THEY REACT AT 90-175* C. AND 40-700 ATM., THE WATER BEING PRESENT IN AN AMOUNT SUFFICIENT TO INCREASE THE RATE OF REACTION AND THE RATIO OF STRAIGHT CHAIN TO BRANCHED CHAIN ALDEHYDE PRODUCED, COMPARED TO OPERATION IN THE ABSENCE OF WATER.
References Cited (Backward Citations)
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US2600571A
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US2517383A
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US2477553A
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US2576113A
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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) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |