US2750366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mono-acyl derivatives of alkylene diamines and process for preparing same
Assignee: Armour and Co
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Filing: 1952-02-16
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Granted: 1956-06-12
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Expires: 1972-02-16
Abstract
No abstract record available.
Inventors
- 👤 Turinsky Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:52
CPC Classifications
C; C09; C09D; C09D177/00; C07; C07C; C07C233/00; C07C233/01; C07C233/34; C09K; C09K3/00; C09K3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS FOR THE PREPARATION OF AMIDOAMINE WHICH COMPRISES HEATING IN A SUBSTANTIALLY SEALED SYSTEM AT A TEMPERATURE OF AT LEAST 300* C. A MIXTURE COMPRISING A MONOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF HIGHER FATTY ACIDS HAVING FROM 8 TO 18 CARBON ATOMS, ROSIN ACIDS, AND MIXTURES OF ROSIN AND HIGHER FATTY ACIDS HAVING FROM 8 TO 18 CARBON ATOMS, AND AN ALKYLENE DIAMINE HAVING FROM 2 TO 6 CARBON ATOMS IN THE ALKYLENE RADICAL AND HAVING 2 PRIMARY AMINE GROUPS, SAID DIAMINE BEING PRESENT IN A MOLAR RATIO OF AT LEAST 3 TO 1.
Claim 2
Dependent Claim
97 words
A PROCESS FOR THE PREPARATION OF AMIDOAMINE WHICH COMPRISES HEATING IN A SUBSTANTIALLY SEALED SYSTEM AT A TEMPERATURE OF AT LEAST 300* C. A MIXTURE COMPRISING A MONOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF HIGHER FATTY ACIDS HAVING FROM 8 TO 18 CARBON ATOMS, ROSIN ACIDS, AND MIXTURES OF ROSIN AND HIGHER FATTY ACIDS HAVING FROM 8 TO 18 CARBON ATOMS, AND AN ALKYLENE DIAMINE HAVING FROM 2 TO 6 CARBON ATOMS IN THE ALKYLENE RADICAL AND HAVING 2 PRIMARY AMINE GROUPS, SAID DIAMINE BEING PRESENT IN A MOLAR RATIO OF AT LEAST 3 TO 1.
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) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |