Patent US3133971A successfully refreshed from Google Patents.
US3133971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing sulfonium compounds
Assignee: Fort James Corp
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Filing: 1962-04-09
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Granted: 1964-05-19
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Expires: 1982-04-09
Abstract
No abstract record available.
Inventors
- 👤 Warren S Macgregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:20
CPC Classifications
C; C07; C07C; C07C381/00; C07C381/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR PRODUCING A SULFONIUM COMPOUND WHICH COMPRISES PREPARING A LIQUID MIXTURE COMPRISING AN ORGANIC SULFIDE OF THE FORMULA R-S-R'' CONTAINING AT LEAST ONE METHYLENE GROUP ATTACHED TO THE SULFUR ATOM, WHEREIN THE SULFUR ATOM ALONE IS REACTIVE WITH A PHENOL, AND A PHENOL CONTAINING AT LEAST ONE SUBSTITUTED REACTIVE POSITION IN THE AROMATIC RING AND BEING DEVOID OF SUBSTITUENTS REACTIVE TOWARD THE SULFUR ATOMS, AND REACTING THE LIQUID MIXTURE WITH CHLORINE FOR A TIME SUFFICIENT TO FORM A SUBSTANTIAL AMOUNT OF A CORRESPONDING HYDROXYPHENYL SULFONIUM CHLORIDE.
Claim 2
Dependent Claim
88 words
A PROCESS FOR PRODUCING A SULFONIUM COMPOUND WHICH COMPRISES PREPARING A LIQUID MIXTURE COMPRISING AN ORGANIC SULFIDE OF THE FORMULA R-S-R'' CONTAINING AT LEAST ONE METHYLENE GROUP ATTACHED TO THE SULFUR ATOM, WHEREIN THE SULFUR ATOM ALONE IS REACTIVE WITH A PHENOL, AND A PHENOL CONTAINING AT LEAST ONE SUBSTITUTED REACTIVE POSITION IN THE AROMATIC RING AND BEING DEVOID OF SUBSTITUENTS REACTIVE TOWARD THE SULFUR ATOMS, AND REACTING THE LIQUID MIXTURE WITH CHLORINE FOR A TIME SUFFICIENT TO FORM A SUBSTANTIAL AMOUNT OF A CORRESPONDING HYDROXYPHENYL SULFONIUM CHLORIDE.
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |