Patent US3829945A successfully refreshed from Google Patents.
US3222401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of nuclearly alkylated aromatic amines
Assignee: Universal Oil Products Co
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Filing: 1963-02-13
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Granted: 1965-12-07
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Expires: 1983-02-13
Abstract
No abstract record available.
Inventors
- 👤 Schmerling Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:11
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR THE PREPARATION OF A CYCLOALKYL SUBSTITUTED AROMATIC AMINE WHICH COMPRISES ALKYLATING AN AROMATIC AMINE HAVING FROM 1 TO 2 BENZENE RINGS WITH A CYCLOALKENE HYDROCARBON CONTAINING FROM 5 TO 12 CARBON ATOMS IN THE RING IN THE PRESENCE OF AT LEAST ONE CATALYST SELECTED FROM THE GROUP CONSISTING OF FRIEDEL-CRAFTS METAL HALIDES, HYDROGEN CHLORIDE AND HYDROGEN BROMIDE AT A TEMPERATURE OF FROM ABOUT 150* TO ABOUT 300*C. AND A PRESSURE OF FROM ABOUT ATMOSPHERIC TO ABOUT 100 ATMOSPHERES, SAID AMINE AND HYDROCARBON BEING THE ONLY REACTANTS IN THE PROCESS, AND RECOVERING THE RESULTANT CYCLOALKYL SUBSTITUTED AROMATIC AMINE.
Claim 2
Dependent Claim
100 words
A PROCESS FOR THE PREPARATION OF A CYCLOALKYL SUBSTITUTED AROMATIC AMINE WHICH COMPRISES ALKYLATING AN AROMATIC AMINE HAVING FROM 1 TO 2 BENZENE RINGS WITH A CYCLOALKENE HYDROCARBON CONTAINING FROM 5 TO 12 CARBON ATOMS IN THE RING IN THE PRESENCE OF AT LEAST ONE CATALYST SELECTED FROM THE GROUP CONSISTING OF FRIEDEL-CRAFTS METAL HALIDES, HYDROGEN CHLORIDE AND HYDROGEN BROMIDE AT A TEMPERATURE OF FROM ABOUT 150* TO ABOUT 300*C. AND A PRESSURE OF FROM ABOUT ATMOSPHERIC TO ABOUT 100 ATMOSPHERES, SAID AMINE AND HYDROCARBON BEING THE ONLY REACTANTS IN THE PROCESS, AND RECOVERING THE RESULTANT CYCLOALKYL SUBSTITUTED AROMATIC AMINE.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |