Patent US2842582A successfully refreshed from Google Patents.
US2842582A
Expired / Lapsed
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Long-chain dithiols and their preparation
Assignee: EIDP Inc
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Filing: 1955-01-05
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Granted: 1958-07-08
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Expires: 1975-01-05
Abstract
No abstract record available.
Inventors
- 👤 Edward L Jenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:18
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/14; C07C327/00; C07C327/20; C07C327/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
114 words
A PROCESS FOR THE ADDITIVE COUPLING OF POLYMERIZABLE ETHYLENICALLY UNSATURATED COMPOUNDS WITH SULFHYDRYL COMPOUNDS TO PRODUCE DITHIOLS AND DERIVATIVES THEREOF WHICH COMPRISES REACTING IN AN AQUEOUS SYSTEM, IN THE PRESENCE OF AN OXIDIZING AGENT TAKEN FROM THE GROUP CONSISTING OF HYDROXYL FREE-RADICALS AND CERIC SALTS IN MOLAR RATIO TO THAT OF SAID SULFYHYDRYL COMPOUND, A POLYMERIZABLE ETHYLENICALLY UNSATURATED COMPOUND HAVING NOT TO EXCEED TEN CARBON ATOMS AND HAVING CONJUGATED UNSATURATION WITH A SULFHYDRYL COMPOUND HAVING THE FORMULA R-SH WHEREIN R IS A SUBSTITUENT OF THE GROUP CONSISTING OF HYDROCARBON OF NOT TO EXCEED SIX CARBON ATOMS, MONOCARBOXY HYDROCARBON OF NOT TO EXCEED SIX CARBON ATOMS, AND CARBOXYACYL OF NOT TO EXCEED SIX CARBON ATOMS.
Claim 2
Dependent Claim
114 words
A PROCESS FOR THE ADDITIVE COUPLING OF POLYMERIZABLE ETHYLENICALLY UNSATURATED COMPOUNDS WITH SULFHYDRYL COMPOUNDS TO PRODUCE DITHIOLS AND DERIVATIVES THEREOF WHICH COMPRISES REACTING IN AN AQUEOUS SYSTEM, IN THE PRESENCE OF AN OXIDIZING AGENT TAKEN FROM THE GROUP CONSISTING OF HYDROXYL FREE-RADICALS AND CERIC SALTS IN MOLAR RATIO TO THAT OF SAID SULFYHYDRYL COMPOUND, A POLYMERIZABLE ETHYLENICALLY UNSATURATED COMPOUND HAVING NOT TO EXCEED TEN CARBON ATOMS AND HAVING CONJUGATED UNSATURATION WITH A SULFHYDRYL COMPOUND HAVING THE FORMULA R-SH WHEREIN R IS A SUBSTITUENT OF THE GROUP CONSISTING OF HYDROCARBON OF NOT TO EXCEED SIX CARBON ATOMS, MONOCARBOXY HYDROCARBON OF NOT TO EXCEED SIX CARBON ATOMS, AND CARBOXYACYL OF NOT TO EXCEED SIX CARBON ATOMS.
Claim 3
Dependent Claim
8 words
A COMPOSITION OF MATTER HAVING THE GENERAL FORMULA
Claim 4
Dependent Claim
8 words
A COMPOSITION OF MATTER HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |