US2589245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amide-epoxide compositions, etc.
Assignee: Celanese Coatings Co
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Filing: 1945-12-03
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Granted: 1952-03-18
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Expires: 1965-12-03
Abstract
No abstract record available.
Inventors
- 👤 Greenlee Sylvan Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:28
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
AMIDE-EPOXY COMPOSITIONS CONTAINING IN SUBSTANTIAL AMOUNTS COMPLEX RESINOUS EPOXIDES AND ORGANIC CARBOXYLIC ACID AMIDES FREE FROM REACTIVE GROUPS OTHER THAN THE ACID AMIDE GROUPS AND HAVING A PLURALITY OF ACTIVE HYDROGENS ON SUCH AMIDE GROUPS, SAID COMPLEX RESINUOUS EPOXIDES BEING POLYMERIC POLYETHERS OF DIHYDRIC PHENOLS, WHICH DIHYDRIC PHENOLS ARE FREE FROM FUNCTIONAL GROUPS OTHER THAN PHENOLIC HYDROXYL GROUPS, SAID RESINOUS EPOXIDES HAVING A PLURALITY OF AROMATIC NUCLEI ALTERNATING WITH INTERMEDIATE AND TERMINAL ALIPHATIC CHAINS UNITED THROUGH ETHER OXYGEN, THE AROMATIC NUCELI BEING THE HYDROCARBON NUCELI OF THE DIHYDRIC PHENOLS, THE INTERMEDIATE ALIPHATIC CHAINS BEING ALCOHOLIC-HYDROXYL-CONTAINING CHAINS FREE FROM FUNCTIONAL GROUPS OTHER THAN ALCOHOLIC HYDROXYL GROUPS AND THE TERMINAL ALIPHATIC CHAINS HAVING EPOXIDE AND ALCOHOLIC HYDROXYL GROUPS AND BEING FREE FROM OTHER FUNCTIONAL GROUPS.
Claim 2
Dependent Claim
123 words
AMIDE-EPOXY COMPOSITIONS CONTAINING IN SUBSTANTIAL AMOUNTS COMPLEX RESINOUS EPOXIDES AND ORGANIC CARBOXYLIC ACID AMIDES FREE FROM REACTIVE GROUPS OTHER THAN THE ACID AMIDE GROUPS AND HAVING A PLURALITY OF ACTIVE HYDROGENS ON SUCH AMIDE GROUPS, SAID COMPLEX RESINUOUS EPOXIDES BEING POLYMERIC POLYETHERS OF DIHYDRIC PHENOLS, WHICH DIHYDRIC PHENOLS ARE FREE FROM FUNCTIONAL GROUPS OTHER THAN PHENOLIC HYDROXYL GROUPS, SAID RESINOUS EPOXIDES HAVING A PLURALITY OF AROMATIC NUCLEI ALTERNATING WITH INTERMEDIATE AND TERMINAL ALIPHATIC CHAINS UNITED THROUGH ETHER OXYGEN, THE AROMATIC NUCELI BEING THE HYDROCARBON NUCELI OF THE DIHYDRIC PHENOLS, THE INTERMEDIATE ALIPHATIC CHAINS BEING ALCOHOLIC-HYDROXYL-CONTAINING CHAINS FREE FROM FUNCTIONAL GROUPS OTHER THAN ALCOHOLIC HYDROXYL GROUPS AND THE TERMINAL ALIPHATIC CHAINS HAVING EPOXIDE AND ALCOHOLIC HYDROXYL GROUPS AND BEING FREE FROM OTHER FUNCTIONAL GROUPS.
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) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |