US2737536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of synthesizing tert-alkyl substituted aromatic compounds
Assignee: Universal Oil Products Co
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Filing: 1952-12-31
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Granted: 1956-03-06
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Expires: 1972-12-31
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
- 👤 George L Hervert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:27
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2/70; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
A PROCESS FOR THE PRODUCTION OF A TERT-ALKAYL-SUBSTITUTED AROMATIC COMPOUND WHICH COMPRISES SUBJECTING TO ALKYLATING CONDITIONS IN THE PRESENCE OF AN ACIDIC ALKYLATION CATALYST A MIXING OF AN AROMATIC COMPOUND CONTAINING A NUCLEARLY REPLACEABLE HYDROGEN ATOM, A PARAFFINIC HYDROCARBON HAVING IN ITS STRUCTURE A TERTIARY CARBON ATOM, AND AN OLEFINIC HYDROCARBON CONTAINING AT LEAST 3 MORE CARBON ATOMS PER MOLECULE THAN SAID PARAFFINIC HYDROCARBON, SAID AROMATIC COMPOUND BEING IN MOLAR EXCESS OF OLEFIN IN SAID MIXTURE.
Claim 2
Dependent Claim
76 words
A PROCESS FOR THE PRODUCTION OF A TERT-ALKAYL-SUBSTITUTED AROMATIC COMPOUND WHICH COMPRISES SUBJECTING TO ALKYLATING CONDITIONS IN THE PRESENCE OF AN ACIDIC ALKYLATION CATALYST A MIXING OF AN AROMATIC COMPOUND CONTAINING A NUCLEARLY REPLACEABLE HYDROGEN ATOM, A PARAFFINIC HYDROCARBON HAVING IN ITS STRUCTURE A TERTIARY CARBON ATOM, AND AN OLEFINIC HYDROCARBON CONTAINING AT LEAST 3 MORE CARBON ATOMS PER MOLECULE THAN SAID PARAFFINIC HYDROCARBON, SAID AROMATIC COMPOUND BEING IN MOLAR EXCESS OF OLEFIN IN SAID MIXTURE.
Claim 3
Dependent Claim
50 words
A PROCESS FOR THE PRODUCTION OF TERT-AMYLBENZENE WHICH COMPRISES SUBJECTING A MIXTURE OF BENEZENE, ISOPENTANE AND DODECYLENE TO ALKYLATING CONDITIONS IN THE PRESENCE OF SULFURIC ACID ALKYLATION CATALYST, SAID MIXTURE CONTAINING AT LEAST 1 MOLAR PROPORTION OF BENZENE AND AT LEAST 1 MOLAR PROPORTION OF ISOPENTANE PER MOL OF DODECYLENE.
Claim 4
Dependent Claim
50 words
A PROCESS FOR THE PRODUCTION OF TERT-AMYLBENZENE WHICH COMPRISES SUBJECTING A MIXTURE OF BENEZENE, ISOPENTANE AND DODECYLENE TO ALKYLATING CONDITIONS IN THE PRESENCE OF SULFURIC ACID ALKYLATION CATALYST, SAID MIXTURE CONTAINING AT LEAST 1 MOLAR PROPORTION OF BENZENE AND AT LEAST 1 MOLAR PROPORTION OF ISOPENTANE PER MOL OF DODECYLENE.
References Cited (Backward Citations)
US2419692A
Cited
US2626966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |