US2921037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyepoxide-amine compositions
Assignee: Bayer AG
•
Filing: 1958-06-12
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Granted: 1960-01-12
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Expires: 1978-06-12
Abstract
No abstract record available.
Inventors
- 👤 Andres Karlheinz
- 👤 Wegler Richard
- 👤 Frank Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:51
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/28; C07; C07D; C07D303/00; C07D303/02; C07D303/36; C08G59/02; C08G59/10; C08G59/226; C08G59/32; C08G59/3227; C08G59/38; C08G59/40; C08G59/50; C08G59/5006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A COMPOSITION CAPABLE OF CURING AT ROOM TEMPERATURE COMPRISING (1) 20-80 PARTS BY WEIGHT OF A TERTIARY AROMATIC AMINE, CONTAINING AT LEASTONE TERTIARY NITROGEN ATOM TO WHICH IS BONDED AT LEAST ONE 2,3-EPOXYPROPYL GROUP, AT LEAST TWO 2,3 EPOXYPROPHYL GROUPS BEING PRESENT IN SAID AMINE, (2) 80-20 PARTS BY WEIGHT OF A POLYGLYCIDYL ETHER OF A SATURATED ALIPHATIC ALCOHOL HAVING AT LEAST THREE GLYCIDYL ETHER GROUPS, THE LATTER BEING THE SOLE REACTIVE GROUPS OF SAID POLYGLYCIDYL ETHER, AND (3) AN ALIPHATIC POLYAMINE IN AN AMOUNT OF ABOUT 5 TO 30 PERCENT BY WEIGHT AS CALCULATED ON THE TOTAL AMOUNT OF SAID AMINE (1) AND SAID POLYGLYCIDYL ETHER (2).
Claim 2
Dependent Claim
108 words
A COMPOSITION CAPABLE OF CURING AT ROOM TEMPERATURE COMPRISING (1) 20-80 PARTS BY WEIGHT OF A TERTIARY AROMATIC AMINE, CONTAINING AT LEASTONE TERTIARY NITROGEN ATOM TO WHICH IS BONDED AT LEAST ONE 2,3-EPOXYPROPYL GROUP, AT LEAST TWO 2,3 EPOXYPROPHYL GROUPS BEING PRESENT IN SAID AMINE, (2) 80-20 PARTS BY WEIGHT OF A POLYGLYCIDYL ETHER OF A SATURATED ALIPHATIC ALCOHOL HAVING AT LEAST THREE GLYCIDYL ETHER GROUPS, THE LATTER BEING THE SOLE REACTIVE GROUPS OF SAID POLYGLYCIDYL ETHER, AND (3) AN ALIPHATIC POLYAMINE IN AN AMOUNT OF ABOUT 5 TO 30 PERCENT BY WEIGHT AS CALCULATED ON THE TOTAL AMOUNT OF SAID AMINE (1) AND SAID POLYGLYCIDYL ETHER (2).
References Cited (Backward Citations)
US2730531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |