US3954873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino alcohols
Assignee: Individual
•
Filing: 1974-04-17
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Granted: 1976-05-04
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Expires: 1994-04-17
Abstract
Abstract Compounds of the formulas R1R3 R1R3 ¦ ¦ HO-C-CH2-N ANGLE or HOCH2-C-N ANGLE ¦ ¦ R2R4 R2R4 including particular derivatives thereof, are provided. The subject compositions have utility in a wide variety of applications and their use as corrosion inhibitors for metals is exemplary.
Inventors
- 👤 Robert M. Gipson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:50
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; C23F11/142
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
An amino alcohol having the formula: ##EQU27## wherein, individually, R 1 and R 2 are linear C 1 to C 36 alkyl groups and R 1 and R 2 together contain a total of 8 to 38 carbon atoms; and wherein R 5 and R 6 individually are selected from a. alkyl, and hydroxyalkyl radicals containing from 1 to 10 carbon atoms per radical; b. the radical ##EQU28## wherein R is hydrogen or C 1 to C 4 alkyl, m is 2 or 3, n is 1 to 3, and Y is ##EQU29## or (3)OH and c. the radical ##EQU30## wherein R is defined as in (b); provided that at least one of R 5 or R 6 is the radical (b).
Claim 2
Dependent Claim
122 words
An amino alcohol having the formula: ##EQU27## wherein, individually, R 1 and R 2 are linear C 1 to C 36 alkyl groups and R 1 and R 2 together contain a total of 8 to 38 carbon atoms; and wherein R 5 and R 6 individually are selected from a. alkyl, and hydroxyalkyl radicals containing from 1 to 10 carbon atoms per radical; b. the radical ##EQU28## wherein R is hydrogen or C 1 to C 4 alkyl, m is 2 or 3, n is 1 to 3, and Y is ##EQU29## or (3)OH and c. the radical ##EQU30## wherein R is defined as in (b); provided that at least one of R 5 or R 6 is the radical (b).
Claim 3
Dependent Claim
10 words
A compound according to claim 1 of the formula ##EQU31##
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) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |