US2721886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyzed condensation of aromatic compounds with unsaturated organic compounds
Assignee: Universal Oil Products Co
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Filing: 1954-06-07
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Granted: 1955-10-25
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Expires: 1974-06-07
Abstract
No abstract record available.
Inventors
- 👤 Pines Herman
- 👤 Haensel Vladimir
- 👤 Kibort Vincetta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:44
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/72; C07C2523/00; C07C2523/02; C07C2523/04; C07C2531/00; C07C2531/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN A PROCESS WHICH COMPRISES REACTING A NON-CONJUGATED OLEFINIC HYDROCARBON AND AN OROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF CARBOCYCLIC AROMATIC AND HETEROCYCLIC AROMATIC RING COMPOUNDS HAVING ATTACHED TO A NUCLEAR CARBON ATOM A CRBON ATOM OF A HYDROCARBON GROUP SELECTED FROM THE GROUP CONSISTING OF AN ALKYL GROUP, A CYCLOALKYL GROUP, A CYCLOALKALKYL GROUP AND AN ARALKYL GROUP, AND TO WHICH LAST-NAMED CARBON ATOM IS ATTACHED AT LEAST HYDROGEN ATOM, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION AT A TEMPERATURE OF FROM ABOUT 100* TO ABOUT 350* C. AND AT A PRESSURE OF FROM ABOUT 5 TO ABOUT 50 ATMOSPHERES IN THE PRESENCE OF A FREE ALKALI METAL AND OF A MINOR PROMOTING AMOUNT OF A POLYCYCLIC HYDROCARBON CAPABLE OF REACTING WITH A PORTION OF SAID FREE ALKALI METAL TO FOR A METALIZED POLYCYCLIC HYDROCARBON, AND RECOVERING THE RESULTANT CONDENSATION PRODUCT.
Claim 2
Dependent Claim
144 words
IN A PROCESS WHICH COMPRISES REACTING A NON-CONJUGATED OLEFINIC HYDROCARBON AND AN OROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF CARBOCYCLIC AROMATIC AND HETEROCYCLIC AROMATIC RING COMPOUNDS HAVING ATTACHED TO A NUCLEAR CARBON ATOM A CRBON ATOM OF A HYDROCARBON GROUP SELECTED FROM THE GROUP CONSISTING OF AN ALKYL GROUP, A CYCLOALKYL GROUP, A CYCLOALKALKYL GROUP AND AN ARALKYL GROUP, AND TO WHICH LAST-NAMED CARBON ATOM IS ATTACHED AT LEAST HYDROGEN ATOM, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE REACTION AT A TEMPERATURE OF FROM ABOUT 100* TO ABOUT 350* C. AND AT A PRESSURE OF FROM ABOUT 5 TO ABOUT 50 ATMOSPHERES IN THE PRESENCE OF A FREE ALKALI METAL AND OF A MINOR PROMOTING AMOUNT OF A POLYCYCLIC HYDROCARBON CAPABLE OF REACTING WITH A PORTION OF SAID FREE ALKALI METAL TO FOR A METALIZED POLYCYCLIC HYDROCARBON, AND RECOVERING THE RESULTANT CONDENSATION PRODUCT.
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) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |