US3703500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanization retarders of trihalo-sulphenyl-sulphonamides
Assignee: Bayer AG
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Filing: 1970-10-20
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Granted: 1972-11-21
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Expires: 1990-10-20
Abstract
Abstract COMPOUNDS OF THE FORMULA R-SO2-N(-R1)-S-C(-CL)2-X IN WHICH R REPRESENTS AN ALKYL RADICAL OPTIONALLY SUBSTITUTED BY CHLORINE, A CYCLOALKYL RADICAL, AN ARYL RADICAL OPTIONALLY SUBSTITUTED BY AT LEAST ONE ALKYL GROUP AND/OR CHLORINE ATOM, AN ARALKYL RADICAL OR A DIALKYLAMINO GROUP, R1 REPRESENTS AN ARYL RADICAL OPTIONALLY SUBSTITUTED BY AT LEAST ONE ALKYL GROUP AND/OR CHLORINE ATOM, AND X REPRESENTS CHLORINE OR FLORINE ARE USED AS VULCANIZATION RETARDERS INNATURAL AND/OR SYNTHETIC RUBBER MIXTURES. ONE OF THESE VULCANIZATION RETARDERS OF THE AFOREMENTIONED GENERAL FORMULA IS NPHENYL - N -(TRICHLOROMETHYLSULPHENYL) - METHYLSULPHONAMIDE.
Inventors
- 👤 Roland Nast
- 👤 Engelbert Kuhle
- 👤 Manfred Abele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:48
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |