US3219702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of aromatic amines by aromatization
Assignee: Monsanto Co
•
Filing: 1961-02-02
•
Granted: 1965-11-23
•
Expires: 1981-02-02
Abstract
No abstract record available.
Inventors
- 👤 James E Van Verth
- 👤 Gene R Wilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:18
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE PROCESS OF ARMOATIZATION WHICH CONSISTS ESSENTIALLY OF HEATING, BELOW THERMAL DECOMPOSITION TEMPERATURE NOT IN EXCESS OF ABOUT 300*C., SIX-MEMBERED ALICYCLIC HYDROCARBON MONOKETONE FREE FROM QUATERNARY CARBON IN THE RING, THE TEMPERATURE BEING SUFFICIENT TO DEHYDROGENATE THE ALICYCLIC HYDROCARBON RADICAL, AMMONIA COMPOUND OF THE GROUP CONSISTING OF AMMONIA, PRIMARY AMINES, AND SECONDARY AMINES AND HYDROGEN ACCEPTOR EXCLUSIVE OF ANY CYCLOALKYLIDENAMINO RADICAL DEHYDROGENATED, SAID HYDROGEN ACCEPTOR BEIG A COMPOUND CONTAINING AT LEAST ONE CONSTITUENT REACTIVE WITH HYDROGEN SELECTED FROM THE GROUP CONSISTING OF A NITROGEN-TO-CARBON DOUBLE, OLEFINIC UNSATURATION, AND NITRO WITH A PLATINUM METAL CATALYST, THEREBY CONVERTING THE ALICYCLIC KETONE TO AROMATIC RADICAL OF THE SAME NUMBER OF CARBON ATOMS REPLACING THE HYDROGEN OF THE SAID AMMONIA COMPOUND.
Claim 2
Dependent Claim
117 words
THE PROCESS OF ARMOATIZATION WHICH CONSISTS ESSENTIALLY OF HEATING, BELOW THERMAL DECOMPOSITION TEMPERATURE NOT IN EXCESS OF ABOUT 300*C., SIX-MEMBERED ALICYCLIC HYDROCARBON MONOKETONE FREE FROM QUATERNARY CARBON IN THE RING, THE TEMPERATURE BEING SUFFICIENT TO DEHYDROGENATE THE ALICYCLIC HYDROCARBON RADICAL, AMMONIA COMPOUND OF THE GROUP CONSISTING OF AMMONIA, PRIMARY AMINES, AND SECONDARY AMINES AND HYDROGEN ACCEPTOR EXCLUSIVE OF ANY CYCLOALKYLIDENAMINO RADICAL DEHYDROGENATED, SAID HYDROGEN ACCEPTOR BEIG A COMPOUND CONTAINING AT LEAST ONE CONSTITUENT REACTIVE WITH HYDROGEN SELECTED FROM THE GROUP CONSISTING OF A NITROGEN-TO-CARBON DOUBLE, OLEFINIC UNSATURATION, AND NITRO WITH A PLATINUM METAL CATALYST, THEREBY CONVERTING THE ALICYCLIC KETONE TO AROMATIC RADICAL OF THE SAME NUMBER OF CARBON ATOMS REPLACING THE HYDROGEN OF THE SAID AMMONIA COMPOUND.
References Cited (Backward Citations)
US2413598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |