US3714249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxyalkylaminoalkylamides and their preparation
Assignee: Sunoco Inc
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Filing: 1971-01-22
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Granted: 1973-01-30
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Expires: 1991-01-22
Abstract
Abstract Hydroxyalkylaminoalkylamides and the process of making them by reacting alkyl and aryl nitriles with alkanolamines at about 100* to about 220*C. under anhydrous, non-catalytic conditions and at a mole ratio of alkanolamine per nitrile group exceeding 2 to 1.
Inventors
- 👤 R Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:43
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/12; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
5 words
The compound of the formula
Claim 2
Dependent Claim
5 words
The compound of the formula
Claim 3
Dependent Claim
6 words
The compound of the formula (HOCH2CH2NHCH2CH2NHCOCH2CH2)2.
Claim 4
Dependent Claim
6 words
The compound of the formula (HOCH2CH2NHCH2CH2NHCOCH2CH2)2.
Claim 5
Dependent Claim
148 words
A process for preparing a hydroxyalkylaminoalkylamide by reacting under anhydrous conditions in the absence of a catalyst, (a) a nitrile of structure R1(CN)n where R1 is selected from the group of alkyl of 1 to 10 carbon atoms, alkylene of two to 10 carbon atoms, phenyl, naphthyl, phenylene, lower alkyl substituted phenyl of from seven to 12 carbon atoms, phenylalkyl of seven to 12 carbon atoms, and lower alkyl substituted phenylene of from seven to 12 carbon atoms, and n is a small integer of from one to three, with (b) an alkanol-amine of structure where R2 is H or lower alkyl and m is an integer of 2 to 4, said reaction being conducted at a temperature of from about 100* to about 220*C, an essentially atmospheric pressure, and at a mole ratio of alkanolamine per nitrile group exceeding 2 to 1, but less than about 20:1.
Claim 6
Dependent Claim
148 words
A process for preparing a hydroxyalkylaminoalkylamide by reacting under anhydrous conditions in the absence of a catalyst, (a) a nitrile of structure R1(CN)n where R1 is selected from the group of alkyl of 1 to 10 carbon atoms, alkylene of two to 10 carbon atoms, phenyl, naphthyl, phenylene, lower alkyl substituted phenyl of from seven to 12 carbon atoms, phenylalkyl of seven to 12 carbon atoms, and lower alkyl substituted phenylene of from seven to 12 carbon atoms, and n is a small integer of from one to three, with (b) an alkanol-amine of structure where R2 is H or lower alkyl and m is an integer of 2 to 4, said reaction being conducted at a temperature of from about 100* to about 220*C, an essentially atmospheric pressure, and at a mole ratio of alkanolamine per nitrile group exceeding 2 to 1, but less than about 20:1.
Claim 7
Dependent Claim
12 words
The process of claim 3 where the nitrile is an aromatic dinitrile.
Claim 8
Dependent Claim
11 words
The process of claim 3 where the nitrile is a phthalonitrile.
Claim 9
Dependent Claim
10 words
The process of claim 3 where the nitrile is toluonitrile.
Claim 10
Dependent Claim
10 words
The process of claim 3 where the nitrile is benzonitrile.
Claim 11
Dependent Claim
11 words
The process of claim 3 where the nitrile is an alkylenedinitrile.
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |