US2867663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation process
Assignee: —
•
Filing: —
•
Granted: 1959-01-06
•
Expires: 1976-01-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:11
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/73; C07C45/62; C07C45/74; C07C49/00; C07C49/04; C07C49/20; C07C49/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR PRODUCING A SATURATED ALIPHATIC KETONE WHICH COMPRISES HYDROGENATING WITH MOLECULAR HYDROGEN AN A:B-ETHYLENICALLY UNSATURATED ALIPHATIC KETONE SELECTED FROM THE GROUP CONSISTING OF ETHYLIDENE ACETONE, METHYL ISOPROPENYL KETONE AND MESITYL OXIDE IN THE VAPOUR PHASE AT A TEMPERATURE IN THE RANGE FROM 100* TO 300* C. SUBSTANTIALLY AT ATMOSPHERIC PRESSUE AND IN THE PRESENCE OF A CATALYST CONSISTING OF PALLADIUM SUPPORTED ON A MATERIAL SELECTED FROM THE GROUP CONSISTING OF GAMMA-ALUMINA AND PUMICE AND CONTAINING FROM 0.1 TO 2.0% BY WEIGHT OF PALLADIUM BASED ON THE TOTAL VOLUME OF THE CATALYST, WHEREBY THE SATURATED ALIPHATIC KETONE CORRESPONDING TO THE A:B-ETHYLENICALLY UNSATURATED ALIPHATIC KETONE IS PRODUCED AND FORMATION OF THE CORRESPONDING CARBINOL IS SUPPRESSED.
Claim 2
Dependent Claim
115 words
A PROCESS FOR PRODUCING A SATURATED ALIPHATIC KETONE WHICH COMPRISES HYDROGENATING WITH MOLECULAR HYDROGEN AN A:B-ETHYLENICALLY UNSATURATED ALIPHATIC KETONE SELECTED FROM THE GROUP CONSISTING OF ETHYLIDENE ACETONE, METHYL ISOPROPENYL KETONE AND MESITYL OXIDE IN THE VAPOUR PHASE AT A TEMPERATURE IN THE RANGE FROM 100* TO 300* C. SUBSTANTIALLY AT ATMOSPHERIC PRESSUE AND IN THE PRESENCE OF A CATALYST CONSISTING OF PALLADIUM SUPPORTED ON A MATERIAL SELECTED FROM THE GROUP CONSISTING OF GAMMA-ALUMINA AND PUMICE AND CONTAINING FROM 0.1 TO 2.0% BY WEIGHT OF PALLADIUM BASED ON THE TOTAL VOLUME OF THE CATALYST, WHEREBY THE SATURATED ALIPHATIC KETONE CORRESPONDING TO THE A:B-ETHYLENICALLY UNSATURATED ALIPHATIC KETONE IS PRODUCED AND FORMATION OF THE CORRESPONDING CARBINOL IS SUPPRESSED.
References Cited (Backward Citations)
US2272122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |