US2758140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noncatalytic condensation of aromatic compounds with unsaturated hydrocarbons
Assignee: Universal Oil Products Co
•
Filing: 1953-07-27
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Granted: 1956-08-07
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Expires: 1973-07-27
Abstract
No abstract record available.
Inventors
- 👤 Haensel Vladimir
- 👤 Pines Herman
- 👤 Kibort Vincetta
- 👤 Kvetinskas Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:10
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/72
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
136 words
A PROCESS FOR PRODUCING A SIDE CHAIN ALKYLATED AROMATIC COMPOUND WHICH COMPRISES COMPRESSING IN THE ABSENCE OF EXTERNAL HEATING, AN UNSATURATED HYDROCARBON AND AN AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF CARBOCYCLIC AND HETEROCYCLIC AROMATIC RING COMPOUNDS HAVING ATTACHED TO A MOLECULE CARBON ATOM, A SATURATED CARBON ATOM TO WHICH IS ATTACHED AT LEAST ONE HYDROGEN ATOM, THE MOL RATIO OF AROMATIC COMPOUND TO UNSATURATED HYDROCARBON BEING GREATER THAN ABOUT 1.0 THEREAFTER THERMALLY AND NONCATALYTICALLY REACTING THE UNSATURATED HYDROCARBON WITH THE AROMATIC COMPOUND AT THE SATURATED CARBON ATOM, SAID REACTION BEING CARRIED OUT AT A PRESSURE GREATER THAN ABOUT 1000 P. S. I., AT A TEMPERATURE FROM ABOUT 350* TO ABOUT 500* C., AND AT AN HOURLY LIQUID SPACE VELOCITY FROM ABOUT 0.1 TO ABOUT 10, AND THEREAFTER RECOVERING THE SIDE CHAIN ALKYLATED RESULTANT PRODUCT.
Claim 2
Dependent Claim
136 words
A PROCESS FOR PRODUCING A SIDE CHAIN ALKYLATED AROMATIC COMPOUND WHICH COMPRISES COMPRESSING IN THE ABSENCE OF EXTERNAL HEATING, AN UNSATURATED HYDROCARBON AND AN AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF CARBOCYCLIC AND HETEROCYCLIC AROMATIC RING COMPOUNDS HAVING ATTACHED TO A MOLECULE CARBON ATOM, A SATURATED CARBON ATOM TO WHICH IS ATTACHED AT LEAST ONE HYDROGEN ATOM, THE MOL RATIO OF AROMATIC COMPOUND TO UNSATURATED HYDROCARBON BEING GREATER THAN ABOUT 1.0 THEREAFTER THERMALLY AND NONCATALYTICALLY REACTING THE UNSATURATED HYDROCARBON WITH THE AROMATIC COMPOUND AT THE SATURATED CARBON ATOM, SAID REACTION BEING CARRIED OUT AT A PRESSURE GREATER THAN ABOUT 1000 P. S. I., AT A TEMPERATURE FROM ABOUT 350* TO ABOUT 500* C., AND AT AN HOURLY LIQUID SPACE VELOCITY FROM ABOUT 0.1 TO ABOUT 10, AND THEREAFTER RECOVERING THE SIDE CHAIN ALKYLATED RESULTANT PRODUCT.
Claim 3
Dependent Claim
12 words
A PROCESS WHICH COMPRISES REACTING AN AROMATIC COMPOUND HAVING THE FOLLOWING STRUCTURE:
Claim 4
Dependent Claim
12 words
A PROCESS WHICH COMPRISES REACTING AN AROMATIC COMPOUND HAVING THE FOLLOWING STRUCTURE:
References Cited (Backward Citations)
US2373303A
Cited
US2448641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |