Patent US2908716A successfully refreshed from Google Patents.
US2908716A
Expired / Lapsed
US
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Preparing organic sulfides
Assignee: Fort James Corp
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Filing: 1957-04-08
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Granted: 1959-10-13
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Expires: 1977-04-08
Abstract
No abstract record available.
Inventors
- 👤 Merle E Cisney
- 👤 David W Goheen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:08
CPC Classifications
C; C07; C07B; C07B45/00; C07B45/06; C07C; C07C319/00; C07C319/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A PROCESS FOR PREPARING ORGANIC SULFIDES WHICH CMPRISES REACTING A SUBSTANCE CONTAINING AN ALKYL ARYL ETHER OF THE FORMULA R-O-AR WHEREIN R IS AN ALKYL RADICAL CONTAINING FROM 1 TO 20 CARBON ATOMS AND AIR IS AN ARYL RADICAL, WITH AT LEAST ONE THIOL OF THE GROUP CONSISTING OF THE ARYL THIOLS, THE ALKYL THIOLS, AND THE ARYL SUBSTITUTED ALKYL-THIOLS WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 20 CARBON ATOMS, THE REACTION BEING CARRIED OUT IN AN ALKALINE LIQUID MEDIUM AT A TEMPERATURE OF 180-500*C. FOR A TIME SUFFICIENT TO PRODUCE A SUBSTANTIAL AMOUNT OF ORGANIC SULFIDE, AND RECOVERING THE ORGANIC SULFIDE FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
107 words
A PROCESS FOR PREPARING ORGANIC SULFIDES WHICH CMPRISES REACTING A SUBSTANCE CONTAINING AN ALKYL ARYL ETHER OF THE FORMULA R-O-AR WHEREIN R IS AN ALKYL RADICAL CONTAINING FROM 1 TO 20 CARBON ATOMS AND AIR IS AN ARYL RADICAL, WITH AT LEAST ONE THIOL OF THE GROUP CONSISTING OF THE ARYL THIOLS, THE ALKYL THIOLS, AND THE ARYL SUBSTITUTED ALKYL-THIOLS WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 20 CARBON ATOMS, THE REACTION BEING CARRIED OUT IN AN ALKALINE LIQUID MEDIUM AT A TEMPERATURE OF 180-500*C. FOR A TIME SUFFICIENT TO PRODUCE A SUBSTANTIAL AMOUNT OF ORGANIC SULFIDE, AND RECOVERING THE ORGANIC SULFIDE FROM THE REACTION MIXTURE.
References Cited (Backward Citations)
US2711430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |