US3020310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of tertiary cyanoethylated amines
Assignee: Union Carbide Corp
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Filing: 1960-08-12
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Granted: 1962-02-06
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Expires: 1980-08-12
Abstract
No abstract record available.
Inventors
- 👤 George W Fowler
- 👤 John W Lynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:53
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR THE CYANOETHYLATIUON OF WEAKLY BASIC ALIPHATIC AMINES WHICH COPRISES REACTING A WEAKLY BASIC ALIPHATIC AMINE SELECTED FROM THE GROUP CONSISTING OF 3,3''-IMINODIPROPIONITRILE AND N,N''-BIS(2-CYANOETHYL) ETHYLENEDIAMINE WITH ACRYLONITRILE IN THE PRESENCE OF FROM ABOUT 5 TO ABOUT 100 PERCENT, BASED ON THE TOTAL AMOUNT OF ACRYLONITRILE AND AMIDE, OF AN ORGANIC ACID CATALYST SELECTED FROM THE GROUP CONSISTING OF LOWER ALKANOIC ACIDS, BENZOIC ACID, AND PARATOLUENE-SULFONIC ACID AT A TEMPERATURE OF FROM ABOUT 50* C. TO ABOUT 150* C.
Claim 2
Dependent Claim
81 words
A PROCESS FOR THE CYANOETHYLATIUON OF WEAKLY BASIC ALIPHATIC AMINES WHICH COPRISES REACTING A WEAKLY BASIC ALIPHATIC AMINE SELECTED FROM THE GROUP CONSISTING OF 3,3''-IMINODIPROPIONITRILE AND N,N''-BIS(2-CYANOETHYL) ETHYLENEDIAMINE WITH ACRYLONITRILE IN THE PRESENCE OF FROM ABOUT 5 TO ABOUT 100 PERCENT, BASED ON THE TOTAL AMOUNT OF ACRYLONITRILE AND AMIDE, OF AN ORGANIC ACID CATALYST SELECTED FROM THE GROUP CONSISTING OF LOWER ALKANOIC ACIDS, BENZOIC ACID, AND PARATOLUENE-SULFONIC ACID AT A TEMPERATURE OF FROM ABOUT 50* C. TO ABOUT 150* C.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |