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Patent US2640037A successfully refreshed from Google Patents.
US2640037A
Expired / Lapsed
US
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Fatty acid salts of nitrogencontaining polyethers
Assignee: Shell Development Co
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Filing: 1951-10-03
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Granted: 1953-05-26
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Expires: 1971-10-03
Abstract
No abstract record available.
Inventors
- 👤 Harvey L Parry
- 👤 Quentin T Wiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:51
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; C07D295/027; C08; C08G; C08G59/00; C08G59/18; C08G59/182; C08G59/184; C08G59/40; C08G59/50; C08G59/56; C08G59/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A FATTY ACID SALT OF THE SOLUBLE FUSIBLE REACTION PRODUCT FROM REACTION OF A GLYCIDYL POLYETHER OF A DIHYDRIC PHENOL HAVING 1,2-EPOXY EQUIVALENCY BETWEEN 1.0 AND 2.0 WITH A SECONDARY AMINE WHILE HAVING IN THE REACTION MIXTURE AT LEAST 1.5 MOLS OF SAID AMINE PER EPOXIDE EQUIVALENT OF SAID POLYETHER, SAID SECONDARY AMINE CONTAINING A SINGLE NITROGEN ATOM WHICH IS LINKED DIRECTLY TO TWO DIFFERENT CARBON ATOMS AND CONTAINING BESIDES THE SINGLE NITROGEN ATOM ONLY THE ELEMENTS CARBON AND HYDROGEN.
Claim 2
Dependent Claim
80 words
A FATTY ACID SALT OF THE SOLUBLE FUSIBLE REACTION PRODUCT FROM REACTION OF A GLYCIDYL POLYETHER OF A DIHYDRIC PHENOL HAVING 1,2-EPOXY EQUIVALENCY BETWEEN 1.0 AND 2.0 WITH A SECONDARY AMINE WHILE HAVING IN THE REACTION MIXTURE AT LEAST 1.5 MOLS OF SAID AMINE PER EPOXIDE EQUIVALENT OF SAID POLYETHER, SAID SECONDARY AMINE CONTAINING A SINGLE NITROGEN ATOM WHICH IS LINKED DIRECTLY TO TWO DIFFERENT CARBON ATOMS AND CONTAINING BESIDES THE SINGLE NITROGEN ATOM ONLY THE ELEMENTS CARBON AND HYDROGEN.
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) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |