US4026807A
Expired / Lapsed
US
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Alkynoxymethyl amines
Assignee: Baker Petrolite LLC
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Filing: 1974-08-09
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Granted: 1977-05-31
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Expires: 1994-08-09
Abstract
Abstract This invention relates to alkynoxymethyl amines, to methods of preparing them, and uses thereof, particularly as corrosion inhibitors. These compounds are prepared by reacting an amine, such as RNH 2 , with an aldehyde, such as formaldehyde, and an alkynol, such as propargyl alcohol, to yield compounds of the formula RN(CH.sub.2 OR').sub.2 where R is a substituted group, preferably alkyl, cycloalkyl, aryl, etc., and R' is an acetylenic alcohol moiety.
Inventors
- 👤 Patrick M. Quinlan
- 👤 Richard D. McBride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:13
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; C23F11/142; C23F11/04; Y; Y10; Y10S; Y10S507/00; Y10S507/933; Y10S507/934
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
19 words
A compound of the formula RN(CH.sub.2 --OR').sub.2 where R is a hydrocarbon group and R' is an acetylenic moiety.
Claim 2
Dependent Claim
19 words
A compound of the formula RN(CH.sub.2 --OR').sub.2 where R is a hydrocarbon group and R' is an acetylenic moiety.
Claim 3
Dependent Claim
12 words
The compound of claim 1 where R is alkyl, cycloalkyl or aryl.
Claim 4
Dependent Claim
9 words
The compound of claim 2 where R is alkyl.
Claim 5
Dependent Claim
9 words
The compound of claim 3 where R' is propargyl.
Claim 6
Dependent Claim
24 words
The compound of claim 1 having the formula RN(CH.sub.2 OCH.sub.2 C.tbd.CH).sub.2 where R is t--C 12 H 25 to t--C 14 H 29 .
References Cited (Backward Citations)
US2297531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |