Patent US2820059A successfully refreshed from Google Patents.
US2820059A
Expired / Lapsed
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Improved hydroformylation catalysts and reaction media containing nitrogen bases
Assignee: Eastman Kodak Co
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Filing: 1956-04-18
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Granted: 1958-01-14
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Expires: 1976-04-18
Abstract
No abstract record available.
Inventors
- 👤 Robert H Hasek
- 👤 Clyde W Wayman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:16
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A PROCESS FOR PRODUCING AN ALDEHYDE BY HYDROFORMYLATION OF AN OLEFINIC COMPOUND, THE IMPROVEMENT WHICH COMPRISES REACTING SAID OLEFINIC COMPOUND WITH CARBON MONOXIDE AND HYDROGEN AT AN ELEVATED TEMPERATURE AND AN ELEVATED PRESSURE IN A LIQUID PHASE COMPRISING A COBALT CATALYST, AT LEAST 10% BY WEIGHT OF SAID CATALYST BEING IN THE FORM OF A COBALT CARBONYL, AN ORGANIC SOLVENT CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN, SAID SOLVENT BEING INERT TO SAID COBALT CATALYST AND TO PRODUCTS OF SAID HYDROFORMYLATION REACTION, AND A MONOFUNCTIONAL NITROGEN-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANIC BASES HAVING AN IONIZATION CONSTANT LESS THAN 10-8 AND CARBOXYLIC ACID SALTS OF SAID ORGANIC BASES, THE MOLE RATIO OF SAID NITROGEN-CONTAINING COMPOUND TO SAID COBALT CATALYST BEING WITHIN THE RANGE OF 0.5 TO 50.
Claim 2
Dependent Claim
129 words
IN A PROCESS FOR PRODUCING AN ALDEHYDE BY HYDROFORMYLATION OF AN OLEFINIC COMPOUND, THE IMPROVEMENT WHICH COMPRISES REACTING SAID OLEFINIC COMPOUND WITH CARBON MONOXIDE AND HYDROGEN AT AN ELEVATED TEMPERATURE AND AN ELEVATED PRESSURE IN A LIQUID PHASE COMPRISING A COBALT CATALYST, AT LEAST 10% BY WEIGHT OF SAID CATALYST BEING IN THE FORM OF A COBALT CARBONYL, AN ORGANIC SOLVENT CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN, SAID SOLVENT BEING INERT TO SAID COBALT CATALYST AND TO PRODUCTS OF SAID HYDROFORMYLATION REACTION, AND A MONOFUNCTIONAL NITROGEN-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANIC BASES HAVING AN IONIZATION CONSTANT LESS THAN 10-8 AND CARBOXYLIC ACID SALTS OF SAID ORGANIC BASES, THE MOLE RATIO OF SAID NITROGEN-CONTAINING COMPOUND TO SAID COBALT CATALYST BEING WITHIN THE RANGE OF 0.5 TO 50.
References Cited (Backward Citations)
US2564104A
Cited
US2576113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |