US3397244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of diaryl and di (alkaryl) sulfides
Assignee: Phillips Petroleum Co
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Filing: 1964-09-09
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Granted: 1968-08-13
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Expires: 1984-09-09
Abstract
No abstract record available.
Inventors
- 👤 Rector P Louthan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:52
CPC Classifications
C; C07; C07C; C07C321/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A PROCESS FOR THE PREPARATION OF AT LEAST ONE OF A DIARYL SULFIDE, A DI(ALKYARYL) SULFIDE AND AN ARYL ALKYARYL SULFIDE BY REACTING AT AN ELEVATED TEMPERATURE AT LEAST ONE OF AN ARYL HALIDE AND AN ALKARYL HALIDE WITH AN ALKALI METAL BISULFIDE IN A POLAR ORGANIC COMPOUND REACTION MEDIUM WHICH IS A SUBSTANTIAL SOLVENT FOR THE REACTANTS AND WHICH IS ESSENTIALLY STABLE AT THE REACTION CONDITIONS AN D THEN RECOVERING A SULFIDE THUS FORMED FROM THE REACTION MASS THUS OBTAINED, SAID REACTION MEDIUM BEING SELECTED FROM
Claim 2
Dependent Claim
87 words
A PROCESS FOR THE PREPARATION OF AT LEAST ONE OF A DIARYL SULFIDE, A DI(ALKYARYL) SULFIDE AND AN ARYL ALKYARYL SULFIDE BY REACTING AT AN ELEVATED TEMPERATURE AT LEAST ONE OF AN ARYL HALIDE AND AN ALKARYL HALIDE WITH AN ALKALI METAL BISULFIDE IN A POLAR ORGANIC COMPOUND REACTION MEDIUM WHICH IS A SUBSTANTIAL SOLVENT FOR THE REACTANTS AND WHICH IS ESSENTIALLY STABLE AT THE REACTION CONDITIONS AN D THEN RECOVERING A SULFIDE THUS FORMED FROM THE REACTION MASS THUS OBTAINED, SAID REACTION MEDIUM BEING SELECTED FROM
References Cited (Backward Citations)
CA553518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |