US3340324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of converting mercaptans to disulfides
Assignee: Phillips Petroleum Co
•
Filing: 1965-04-26
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Granted: 1967-09-05
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Expires: 1985-04-26
Abstract
No abstract record available.
Inventors
- 👤 Paul F Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:21
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/22; C07C319/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A METHOD FOR PRODUCING DISULFIDES COMPRISING REACTING AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKANETHIOLS AND CYCLOALKANETHIOLS WITH SULFUR IN THE PRESENCE OF AT LEAST ONE ALKALI METAL HYDROXIDE AND AT LEAST ONE ALKANOL, THE THIOL TO SULFUR TO ALKALI METAL HYDROXIDE TO ALKANOL MOL RATIO BEING OF THE FORM 2/X/Y/Z, RESPECTIVELY, WHEREIN X IS AT LEAST ABOUT 0.75 AND Y AND Z ARE AT LEAST ABOUT 0.5 BUT WHEN EITHER ONE OF Y AND Z IS ABOUT 0.5 THE OTHER IS AT LEAST ABOUT 1, SAID REACTION BEING CARRIED OUT AT A TEMPERATURE AND FOR A TIME SUFFICIENT TO CAUSE THE REACTION PRODUCT TO CONTAIN A SUBSTANTIAL PREPONDERANCE OF DIALKANEDISULFIDE.
Claim 2
Independent Claim
114 words
A METHOD FOR PRODUCING DISULFIDES COMPRISING REACTING AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALKANETHIOLS AND CYCLOALKANETHIOLS WITH SULFUR IN THE PRESENCE OF AT LEAST ONE ALKALI METAL HYDROXIDE AND AT LEAST ONE ALKANOL, THE THIOL TO SULFUR TO ALKALI METAL HYDROXIDE TO ALKANOL MOL RATIO BEING OF THE FORM 2/X/Y/Z, RESPECTIVELY, WHEREIN X IS AT LEAST ABOUT 0.75 AND Y AND Z ARE AT LEAST ABOUT 0.5 BUT WHEN EITHER ONE OF Y AND Z IS ABOUT 0.5 THE OTHER IS AT LEAST ABOUT 1, SAID REACTION BEING CARRIED OUT AT A TEMPERATURE AND FOR A TIME SUFFICIENT TO CAUSE THE REACTION PRODUCT TO CONTAIN A SUBSTANTIAL PREPONDERANCE OF DIALKANEDISULFIDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |