US2497310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of amines
Assignee: EIDP Inc
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Filing: 1946-01-03
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Granted: 1950-02-14
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Expires: 1966-01-03
Abstract
No abstract record available.
Inventors
- 👤 Alfred T Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:11
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS FOR THE SYNTHESIS OF AMINES WHICH CONSISTS IN INTRODUCING CARBON MONOXIDE, HYDROGEN, A COMPOUND OF THE CLASS CONSISTING OF AMMONIA AND AMINES HAVING AT LEAST ONE HYDROGEN ATTACHED TO AMINO NITROGEN, AN UNSATURATED HYDROCARBON COMPOUND CONTAINING A NON-BENZENOID DOUBLE BOND BETWEEN CARBON ATOMS, AND A CATALYTIC QUANTITY OF COBALT METAL INTO A PRESSURE RESISTANT VESSEL, AND HEATING THE RESULTING MIXTURE AT A TEMPERATURE WITHIN THE RANGE OF 50 TO 350*C., UNDER A REACTION PRESSURE IN EXCESS OF 50 ATMOSPHERES, WHEREBY A REACTION PRODUCT CONTAINING AMINES IS PRODUCED, AND THEREAFTER SEPARATING FROM THE SAID REACTION PRODUCT THE AMINES PRODUCED BY THE SAID REACTION.
Claim 2
Dependent Claim
104 words
A PROCESS FOR THE SYNTHESIS OF AMINES WHICH CONSISTS IN INTRODUCING CARBON MONOXIDE, HYDROGEN, A COMPOUND OF THE CLASS CONSISTING OF AMMONIA AND AMINES HAVING AT LEAST ONE HYDROGEN ATTACHED TO AMINO NITROGEN, AN UNSATURATED HYDROCARBON COMPOUND CONTAINING A NON-BENZENOID DOUBLE BOND BETWEEN CARBON ATOMS, AND A CATALYTIC QUANTITY OF COBALT METAL INTO A PRESSURE RESISTANT VESSEL, AND HEATING THE RESULTING MIXTURE AT A TEMPERATURE WITHIN THE RANGE OF 50 TO 350*C., UNDER A REACTION PRESSURE IN EXCESS OF 50 ATMOSPHERES, WHEREBY A REACTION PRODUCT CONTAINING AMINES IS PRODUCED, AND THEREAFTER SEPARATING FROM THE SAID REACTION PRODUCT THE AMINES PRODUCED BY THE SAID REACTION.
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) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |