US3280074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monotertiary-diprimary triamines and the use thereof for curing epoxy resins
Assignee: General Mills Inc
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Filing: 1961-08-02
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Granted: 1966-10-18
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Expires: 1981-08-02
Abstract
No abstract record available.
Inventors
- 👤 Kirtland E Mccaleb
- 👤 Nordgren Robert
- 👤 Glaser David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:01
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5006; C08G59/5013
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A HARDENABLE COMPOSITION OF AN EPOXY RESIN HAVING TERMINAL 1,2-EPOXIDE GROUPS AND A MONOTERTIRY-DIPRIMARY AMINE HAVING THE FORMULA RN(CH2CH2CH2NH2)2 WHERE R IS AN ALIPHATIC HYDROCARBON RADICAL HAVING FROM 12 TO 22 CARBON ATOMS IN AN AMOUNT REACTIVE WITH SAID EPOXY RESIN TO FORM A HARD, INFUSIBLE AND INSOLUBLE PRODUCT.
Claim 2
Dependent Claim
49 words
A HARDENABLE COMPOSITION OF AN EPOXY RESIN HAVING TERMINAL 1,2-EPOXIDE GROUPS AND A MONOTERTIRY-DIPRIMARY AMINE HAVING THE FORMULA RN(CH2CH2CH2NH2)2 WHERE R IS AN ALIPHATIC HYDROCARBON RADICAL HAVING FROM 12 TO 22 CARBON ATOMS IN AN AMOUNT REACTIVE WITH SAID EPOXY RESIN TO FORM A HARD, INFUSIBLE AND INSOLUBLE PRODUCT.
References Cited (Backward Citations)
US2681935A
Cited
US3048620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |