US2981701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable aliphatic polyepoxide compositions
Assignee: Beazer East Inc
•
Filing: 1958-01-13
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Granted: 1961-04-25
•
Expires: 1978-01-13
Abstract
No abstract record available.
Inventors
- 👤 Clair William E St
- 👤 Roy H Moult
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:43
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/027; C08G59/18; C08G59/20; C08G59/32; C08G59/38; C08G59/40; C08G59/50; C08L; C08L63/00; C08L63/04; G; G21; G21C; G21C17/00; G21C17/10; G21C7/00; G21C7/36; H; H02; H02M; H02M7/00; H02M7/42; H02M7/54; H02P; H02P25/00; H02P25/02; H02P25/022; H02P25/024; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S260/00; Y10S260/41
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A COMPOSITION WHICH CURES AT ROOM TEMPERATURE TO AN INSOLUBLE, INFUSIBLE, RESINOUS MATERIAL THAT IS RESISTANT TO ATTACK BY MOISTURE, HIGH TEMPERATURE, SOLVENTS, CHEMICALS, AND THAT IS USEFUL AS AN ADHESIVE COATING OR CASTING COMPOUND, COMPRISING AN ALIPHATIC POLYEPOXIDE HAVING FROM 4-6 CARBON ATOMS AND A CURING AGENT SELECTED FROM THE GROUP CONSISTING OF SOLID AROMATIC POLYAMINES AND SOLID POLYAMIDES THAT ARE THE CONDENSATION PRODUCT OF ETHYLENE DIAMINE AND FATTY ACIDS, SAID AGENT CONTAINING TWO OR MORE NITROGEN ATOMS EACH OF WHICH HAS ATTACHED THERETO ONE OR MORE HYDROGEN ATOMS FOR REACTION WITH THE OXIRANE OXYGEN OF SAID POLYEPOXIDE, THE RATIO OF SAID POLYEPOXIDE AND SAID CURING AGENT BEING SUCH AS TO PROVIDE .8 TO 1.4 EQUIVALENTS OF HYDROGEN PER EQUIVALENT OXIRANE OXYGEN IN SAID ALIPHATIC POLYEPOXIDE.
Claim 2
Dependent Claim
127 words
A COMPOSITION WHICH CURES AT ROOM TEMPERATURE TO AN INSOLUBLE, INFUSIBLE, RESINOUS MATERIAL THAT IS RESISTANT TO ATTACK BY MOISTURE, HIGH TEMPERATURE, SOLVENTS, CHEMICALS, AND THAT IS USEFUL AS AN ADHESIVE COATING OR CASTING COMPOUND, COMPRISING AN ALIPHATIC POLYEPOXIDE HAVING FROM 4-6 CARBON ATOMS AND A CURING AGENT SELECTED FROM THE GROUP CONSISTING OF SOLID AROMATIC POLYAMINES AND SOLID POLYAMIDES THAT ARE THE CONDENSATION PRODUCT OF ETHYLENE DIAMINE AND FATTY ACIDS, SAID AGENT CONTAINING TWO OR MORE NITROGEN ATOMS EACH OF WHICH HAS ATTACHED THERETO ONE OR MORE HYDROGEN ATOMS FOR REACTION WITH THE OXIRANE OXYGEN OF SAID POLYEPOXIDE, THE RATIO OF SAID POLYEPOXIDE AND SAID CURING AGENT BEING SUCH AS TO PROVIDE .8 TO 1.4 EQUIVALENTS OF HYDROGEN PER EQUIVALENT OXIRANE OXYGEN IN SAID ALIPHATIC POLYEPOXIDE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |