US3153099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of 1, 4-dinitro-2, 3, 5, 6-tetraalkylbenzenes
Assignee: Honeywell International Inc
•
Filing: 1961-03-14
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Granted: 1964-10-13
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Expires: 1981-03-14
Abstract
No abstract record available.
Inventors
- 👤 Charles J Lind
- 👤 Casimir A Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:34
CPC Classifications
C; C07; C07C; C07C201/00; C07C201/06; C07C201/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE PROCESS OF PRODUCING 1,4-DINITRO-2,3,5,6-TETRAAKLYBENZENES WHICH COMPRISES FORMING A SLURRY OF A 2,3,5,6-TETRAALKYLBENZENE IN CONCENTRATED AQUEOUS SULFURIC ACID AT TEMPERATURE BELOW 15*C., REACTING SAID SLURRY IN THE ABSENCE OF AN ORGANIC SOLVENT WITH A NITRATING AGENT COMPRISING NITRIC ACID, IN RATIO OF ABOUT 2.0 TO 2.25 MOLS OF NITRIC ACID PER MOL OF 2,3,5,6-TETRAALKYLBENZENE, WHILE MAINTAINING SAID TEMPERATURE BELOW ABOUT 15*C., AND RECOVERING THE 1,4-DINITRO-2,3,5,6-TETRAALKYLBENZENE FROM THE RESULTING REACTION ZONE.
Claim 2
Dependent Claim
70 words
THE PROCESS OF PRODUCING 1,4-DINITRO-2,3,5,6-TETRAAKLYBENZENES WHICH COMPRISES FORMING A SLURRY OF A 2,3,5,6-TETRAALKYLBENZENE IN CONCENTRATED AQUEOUS SULFURIC ACID AT TEMPERATURE BELOW 15*C., REACTING SAID SLURRY IN THE ABSENCE OF AN ORGANIC SOLVENT WITH A NITRATING AGENT COMPRISING NITRIC ACID, IN RATIO OF ABOUT 2.0 TO 2.25 MOLS OF NITRIC ACID PER MOL OF 2,3,5,6-TETRAALKYLBENZENE, WHILE MAINTAINING SAID TEMPERATURE BELOW ABOUT 15*C., AND RECOVERING THE 1,4-DINITRO-2,3,5,6-TETRAALKYLBENZENE FROM THE RESULTING REACTION ZONE.
References Cited (Backward Citations)
US2581972A
Cited
US2864871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |