US2739961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation process
Assignee: Hercules Powder Co
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Filing: 1952-11-08
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Granted: 1956-03-27
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Expires: 1972-11-08
Abstract
No abstract record available.
Inventors
- 👤 Drew John
- 👤 Joe C Funderburk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:07
CPC Classifications
C; C09; C09F; C09F1/00; C09F1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
THE PROCESS FOR HYDROGENATING AN UNSATURATED ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ROSIN, DISPROPORTINATED ROSIN, POLYMERIZED ROSIN, PARTIALLY HYDROGENATED ROSIN, UNSATURATED ROSIN ACIDS, LOWER ALKYL AND LOWER HYDROXYALKYL ESTER OF UNSATURATED ROSIN ACIDS, ALCOHOLS PRODUCED BY THE REDUCTION OF THE CARBOXYL GROUP OF AN UNSATURATED ROSIN ACID, ROSIN NITRILES AND TALL OIL WHICH COMPISES SUBJECTING SAID COMPOUND IN THE MOLTEN STATE TO REACTION WITH HYDROGEN AT A TEMPEATURE LESS THAN ABOUT 300* C. AND AT A PRESSURE OF AT LEAST 300 P.S.I. IN THE PRESENCE OF A CATALYST PREPARED BY ACTIVATING A NICKEL-SILICON-MANGANESE ALLOY CONTAINING FROM ABOUT 45% TO ABOUT 73% NICKEL, FROM ABOUT 25% TO ABOUT 50% SILICON AND FROM ABOUT 0.5% TO ABOUT 10% MANGANESE BY TREATMENT WITH AQUEOUS ALKALI.
Claim 2
Dependent Claim
124 words
THE PROCESS FOR HYDROGENATING AN UNSATURATED ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ROSIN, DISPROPORTINATED ROSIN, POLYMERIZED ROSIN, PARTIALLY HYDROGENATED ROSIN, UNSATURATED ROSIN ACIDS, LOWER ALKYL AND LOWER HYDROXYALKYL ESTER OF UNSATURATED ROSIN ACIDS, ALCOHOLS PRODUCED BY THE REDUCTION OF THE CARBOXYL GROUP OF AN UNSATURATED ROSIN ACID, ROSIN NITRILES AND TALL OIL WHICH COMPISES SUBJECTING SAID COMPOUND IN THE MOLTEN STATE TO REACTION WITH HYDROGEN AT A TEMPEATURE LESS THAN ABOUT 300* C. AND AT A PRESSURE OF AT LEAST 300 P.S.I. IN THE PRESENCE OF A CATALYST PREPARED BY ACTIVATING A NICKEL-SILICON-MANGANESE ALLOY CONTAINING FROM ABOUT 45% TO ABOUT 73% NICKEL, FROM ABOUT 25% TO ABOUT 50% SILICON AND FROM ABOUT 0.5% TO ABOUT 10% MANGANESE BY TREATMENT WITH AQUEOUS ALKALI.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |