US3600398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine derivatives of mercaptobenzothiazole
Assignee: ChampionX LLC
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Filing: 1969-04-18
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Granted: 1971-08-17
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Expires: 1989-04-18
Abstract
Abstract A PROCESS FOR PRODUCING THE THIAZOLE SULFENAMIDES FROM THE GROUP CONSISTING OF MORPHOLINOBENZOTHIAZOLE SULFENAMIDE, CYCLOHEXYLBENZOTHIAZOLE SULFENAMIDE AND N-TERTBUTYLBENSOTHIAZOLE SULFENAMDIE. THESE SULFENAMIDE DERIVATIVES ARE PRODUCED IN 94% + YIELD AND AT EXTREMELY HIGH PURITY THROUGH A COMMON GENERALIZED PROCEDURE INVOLVING THE OXIDATION OF MERCAPTOBENZOTHIAZOLE IN THE PRESENCE OF EXCESS AMINE AND AT LEAST 8% BY WEIGHT OF WATER BASED ON THE TOTAL REACTION MIXTURE WITH EITHER CHLORINE, BROMINE, IODINE OR AN ALKALI METAL HYPOCHLORITE.
Inventors
- 👤 Jerry J Svarz
- 👤 Louis A Goretta
- 👤 Wood E Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:31
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/76; C07D277/80
Claims Analysis
Total Claims: 0
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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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |