US2949486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of dehydrated aldols
Assignee: Monsanto Chemicals Ltd
•
Filing: 1955-06-20
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Granted: 1960-08-16
•
Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 William E Weesner
- 👤 Robert A Heimsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:55
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR THE PRODUCTION OF OF DEHYDRATED ALDOLS IN A LIQUID PHASE PROCESS WHICH COMPRISES CONTACTING AN OLEFINIC HYDROCARBON HAVING FROM 2 TO 10 CARBON ATOMS IN THE PRESENCE OF CARBON MONOXIDE AND HYDROGEN UNDER A PRESSURE OF AT LEAST 1000 P.S.I AND AT A TEMPERATURE OF FROM 100* TO 180* C IN COMBINATION WITH FROM 1 TO 20 PERCENT BY WEIGHT RELATIVE TO THE CHARGE OF THE SAID OLE FIN WITH A COMBINATION CATALYST CONTAINING FROM 10 TO 90 PERCENT BY WEIGHT OF A COBALT SALT AND FROM 90 TO 10 PERCENT BY WEIGHT OF A MANGANESE SALT.
Claim 2
Dependent Claim
100 words
A PROCESS FOR THE PRODUCTION OF OF DEHYDRATED ALDOLS IN A LIQUID PHASE PROCESS WHICH COMPRISES CONTACTING AN OLEFINIC HYDROCARBON HAVING FROM 2 TO 10 CARBON ATOMS IN THE PRESENCE OF CARBON MONOXIDE AND HYDROGEN UNDER A PRESSURE OF AT LEAST 1000 P.S.I AND AT A TEMPERATURE OF FROM 100* TO 180* C IN COMBINATION WITH FROM 1 TO 20 PERCENT BY WEIGHT RELATIVE TO THE CHARGE OF THE SAID OLE FIN WITH A COMBINATION CATALYST CONTAINING FROM 10 TO 90 PERCENT BY WEIGHT OF A COBALT SALT AND FROM 90 TO 10 PERCENT BY WEIGHT OF A MANGANESE SALT.
References Cited (Backward Citations)
FR564148A
Cited
CA478621A
Cited
US2517006A
Cited
US2595763A
Cited
US2614128A
Cited
US2587576A
Cited
US2811567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |