Patent US3134818A successfully refreshed from Google Patents.
US3134818A
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US
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Production of aromatic thioethers
Assignee: Honeywell International Inc
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Filing: 1962-01-29
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Granted: 1964-05-26
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Expires: 1982-01-29
Abstract
No abstract record available.
Inventors
- 👤 Basil S Farah
- 👤 Everett E Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:13
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/14; C07C323/00; F; F21; F21S; F21S41/00; F21S41/40; F21S41/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR THE PRODUCTION OF AROMATIC THIOETHERS WHICH COMPRISES REACTING A NUCLEARLY HYDROXY-SUBSTITUTED AROMATIC HYDROCARBON COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHENOL, ALKYL-SUBSTITUTED, ARYL-SUBSTITUTED, HALO-SUBSTITUTED AND ALKOXY-SUBSTITUTED PHENOLS CONTAINING AT LEAST ONE OF A FREE 2-POSITION AND A FREE 4-POSITION, 1-NAPHTHOL AND 2-NAPHTHOL WITH A DIALKYL DISULFIDE IN THE GROUP CONSISTING OF (1) ALKYL-SUBSTITUTED SULFONIC ACIDS, (2) ARYL-SUBSTITUTED SULFONIC ACIDS, (3) SULFONIC ACIDS FORMED BY ADDING SULFURIC ACID TO THE NUCLEARLY HYDROXLYSUBSTITUTED AROMATIC HYDROCARBON COMPOUNDS AND (4) SULFONIC ACID FORM ION-EXCHANGE RESINS, THE MOL RATIO OF SULFONIC ACID TO DISULFIDE BEING NOT MORE THAN ABOUT 0.25 TO 1.
Claim 2
Dependent Claim
100 words
A PROCESS FOR THE PRODUCTION OF AROMATIC THIOETHERS WHICH COMPRISES REACTING A NUCLEARLY HYDROXY-SUBSTITUTED AROMATIC HYDROCARBON COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHENOL, ALKYL-SUBSTITUTED, ARYL-SUBSTITUTED, HALO-SUBSTITUTED AND ALKOXY-SUBSTITUTED PHENOLS CONTAINING AT LEAST ONE OF A FREE 2-POSITION AND A FREE 4-POSITION, 1-NAPHTHOL AND 2-NAPHTHOL WITH A DIALKYL DISULFIDE IN THE GROUP CONSISTING OF (1) ALKYL-SUBSTITUTED SULFONIC ACIDS, (2) ARYL-SUBSTITUTED SULFONIC ACIDS, (3) SULFONIC ACIDS FORMED BY ADDING SULFURIC ACID TO THE NUCLEARLY HYDROXLYSUBSTITUTED AROMATIC HYDROCARBON COMPOUNDS AND (4) SULFONIC ACID FORM ION-EXCHANGE RESINS, THE MOL RATIO OF SULFONIC ACID TO DISULFIDE BEING NOT MORE THAN ABOUT 0.25 TO 1.
References Cited (Backward Citations)
US2745878A
Cited
US2923743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |