Patent US2298898A successfully refreshed from Google Patents.
US2510885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine-epoxy-phenol compositions
Assignee: Celanese Coatings Co
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Filing: 1946-03-08
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Granted: 1950-06-06
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Expires: 1966-03-08
Abstract
No abstract record available.
Inventors
- 👤 Greenlee Sylvan Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:41
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AMINE-EPOXY-PHENOL COMPOSITIONS CONTAINING SUBSTANTIAL AMOUNTS OF A POLYEPOXIDE FREE FROM FUNCTIONAL GROUPS OTHER THAN EPOXY AND HYDROXYL GROUPS, A POLYHYDRIC PHENOL FREE FROM FUNCTIONAL GROUPS OTHER THAN PHENOLIC HYDROXYL GROUPS AND A POLYFUNCTIONAL AMINE CONTAINING A PLURALITH OF ACTIVE AMINE HYDROGENS, THE PROPORTION OF EPOXIDE GROUPS OF THE POLYEPOXIDE BEING IN EXCESS OF THAT EQUIVALENT TO THE PHENOLIC HYDROXYL GROUPS OF THE POLYHYDRIC PHENOL AND ALSO IN EXCESS OF THAT EQUIVALENT TO THE ACTIVE AMINE HYDROGENS OF THE POLYFUNCTIONAL AMINE, AND THE AMOUNTS OF POLYHYDRIC PHENOL AND POLYFUNCTIONAL AMINE TOGETHER BEING SUCH THAT THE PHENOLIC HYDROXYLS OF THE POLYHYDRIC PHENOL AND THE ACTIVE HYDROGENS OF THE AMINE TOGETHER ARE MORE THAN HALF THE EQUIVALENT OF THE EPOXIDE GROUPS OF THE POLYEPOXIDE.
Claim 2
Dependent Claim
121 words
AMINE-EPOXY-PHENOL COMPOSITIONS CONTAINING SUBSTANTIAL AMOUNTS OF A POLYEPOXIDE FREE FROM FUNCTIONAL GROUPS OTHER THAN EPOXY AND HYDROXYL GROUPS, A POLYHYDRIC PHENOL FREE FROM FUNCTIONAL GROUPS OTHER THAN PHENOLIC HYDROXYL GROUPS AND A POLYFUNCTIONAL AMINE CONTAINING A PLURALITH OF ACTIVE AMINE HYDROGENS, THE PROPORTION OF EPOXIDE GROUPS OF THE POLYEPOXIDE BEING IN EXCESS OF THAT EQUIVALENT TO THE PHENOLIC HYDROXYL GROUPS OF THE POLYHYDRIC PHENOL AND ALSO IN EXCESS OF THAT EQUIVALENT TO THE ACTIVE AMINE HYDROGENS OF THE POLYFUNCTIONAL AMINE, AND THE AMOUNTS OF POLYHYDRIC PHENOL AND POLYFUNCTIONAL AMINE TOGETHER BEING SUCH THAT THE PHENOLIC HYDROXYLS OF THE POLYHYDRIC PHENOL AND THE ACTIVE HYDROGENS OF THE AMINE TOGETHER ARE MORE THAN HALF THE EQUIVALENT OF THE EPOXIDE GROUPS OF THE POLYEPOXIDE.
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) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |