US2626967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deodorization of monoaryl substituted alkanes
Assignee: California Research LLC
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Filing: 1951-02-06
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Granted: 1953-01-27
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Expires: 1971-02-06
Abstract
No abstract record available.
Inventors
- 👤 John L Darragh
- 👤 Gordon B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:42
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/02; C07C15/107; C07C7/00; C07C7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN THE PROCESS FOR PREPARING MONOARYLSUBSTITUTED ALKANES BY ALKYLATING A MONONUCLEAR HYDROCARBON OF THE BENZENE SERIES WITH AN OLEFIN CONTAINING FROM 8 TO 18 CARBON ATOMS IN THE MOLECULE IN THE PRESENCE OF AN ALKYLATION CATALYST AND BY FRACTIONALLY DISTILLING THE ALKYLATE OT RECOVER THEREFROM A HEART CUT FRACTION BOILING ABOVE ABOUT 475* F. AND BELOW ABOUT 650* F., THE STEP OF REMOVING ODOROUS CONSTITUENTS FORMED IN THE COURSE OF SAID DISTILLATION BY CONTACTING THE DISTILLED HEART-CUT FRACTION WITH A SILICA-ALUMINA ADSORBENT MATERIAL HAVING A SILICA TO ALUMINA WEIGHT RATIO FROM ABOUT 1.0 TO ABOUT 10.0.
Claim 2
Dependent Claim
96 words
IN THE PROCESS FOR PREPARING MONOARYLSUBSTITUTED ALKANES BY ALKYLATING A MONONUCLEAR HYDROCARBON OF THE BENZENE SERIES WITH AN OLEFIN CONTAINING FROM 8 TO 18 CARBON ATOMS IN THE MOLECULE IN THE PRESENCE OF AN ALKYLATION CATALYST AND BY FRACTIONALLY DISTILLING THE ALKYLATE OT RECOVER THEREFROM A HEART CUT FRACTION BOILING ABOVE ABOUT 475* F. AND BELOW ABOUT 650* F., THE STEP OF REMOVING ODOROUS CONSTITUENTS FORMED IN THE COURSE OF SAID DISTILLATION BY CONTACTING THE DISTILLED HEART-CUT FRACTION WITH A SILICA-ALUMINA ADSORBENT MATERIAL HAVING A SILICA TO ALUMINA WEIGHT RATIO FROM ABOUT 1.0 TO ABOUT 10.0.
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) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |