Patent US4552569A successfully refreshed from Google Patents.
US4552569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-Hydrocarbylhydrocarbylenediamine carboxylate and lubricants containing same
Assignee: Mobil Oil AS
•
Filing: 1985-01-22
•
Granted: 1985-11-12
•
Expires: 2005-01-22
Abstract
Abstract Amide carboxylate salts of certain diamines are provided. These compounds give excellent results when tested in lubricants as, among other things, friction reducing additives.
Inventors
- 👤 Andrew G. Horodysky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:39
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M133/16; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
101 words
A liquid fuel composition comprising a major proportion of a liquid fuel and a friction reducing amount of a compound of the formula: ##STR3## wherein R is a hydrocarbyl group containing 6 to 20 carbon atoms, R 1 is a C 2 to C 3 hydrocarbylene group, R 2 is selected from the group consisting of hydrogen and ##STR4## wherein at least one R 2 is the latter group in which R 3 is selected from the group consisting of hydrogen and a C 1 to C 6 alkyl group, and R 4 is a C 1 -C 20 hydrocarbyl group.
Claim 2
Dependent Claim
101 words
A liquid fuel composition comprising a major proportion of a liquid fuel and a friction reducing amount of a compound of the formula: ##STR3## wherein R is a hydrocarbyl group containing 6 to 20 carbon atoms, R 1 is a C 2 to C 3 hydrocarbylene group, R 2 is selected from the group consisting of hydrogen and ##STR4## wherein at least one R 2 is the latter group in which R 3 is selected from the group consisting of hydrogen and a C 1 to C 6 alkyl group, and R 4 is a C 1 -C 20 hydrocarbyl group.
Claim 3
Dependent Claim
21 words
The composition of claim 1 wherein in the compound the hydrocarbyl group is an alkyl, aryl, alkaryl, aralkyl or cycloalkyl group.
Claim 4
Dependent Claim
16 words
The composition in claim 1 wherein in the compound the hydrocarbylene group is an alkylene group.
Claim 5
Dependent Claim
36 words
The composition of claim 1 wherein in the compound the diamine portion is derived from a member selected from the group consisting of N-oleyl-1,3-propylenediamine, N-coco-1,3-propylenediamine, N-tallow-1,3-propylenediamine, N-stearyl-1,3-propylenediamine, N-hydrogenated tallow-1,3-propylenediamine, N-soya-1,3-propylenediamine, N-hexadecyl-1,3-propylenediamine, N-dodecyl-1,3-propylenediamine, N-linoleyl-1,3-propylenediamine and mixtures thereof.
Claim 6
Dependent Claim
33 words
The compositions of claim 4 wherein the amide portion is prepared from a member selected from the group consisting of formic acid, acetic acid, propionic acid, butyric acid and the corresponding esters thereof.
Claim 7
Dependent Claim
47 words
The composition of claim 4 wherein the carboxylate portion is prepared from a member selected from the group consisting of oleic acid, stearic acid, isostearic acid, linoleic acid, tall oil acid, dodecanoic acid, isomeric tridecanoic acid, hexadecanoic acid, lauric acid, myristic acid and mixtures of such acids.
Claim 8
Dependent Claim
32 words
The composition of claim 6 wherein the diamine used is N-oleyl-1,3-propylenediamine, the acid reacted to form the amide is formic acid and the acid reacted to form the carboxylate is oleic acid.
Claim 9
Dependent Claim
32 words
The composition of claim 6 wherein the diamine used is N-oleyl-1,3-propylenediamine, the acid reacted to form the amide is formic acid and the acid reacted to form the carboxylate is lauric acid.
Claim 10
Dependent Claim
29 words
The composition of claim 1 wherein the liquid fuel is (1) a liquid hydrocarbon, (2) a liquid alcohol or mixtures of alcohol or (3) mixtures of (1) and (2).
Claim 11
Dependent Claim
16 words
The composition of claim 9 wherein the liquid hydrocarbon is diesel oil, fuel oil or gasoline.
Claim 12
Dependent Claim
17 words
The composition of claim 9 wherein the liquid alcohol is methyl alcohol, ethyl alcohol or mixtures thereof.
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) | 1988-11-11 | 1989-05-13 | 1989-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-11 | 1993-05-13 | 1993-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-11 | 1997-05-13 | 1997-11-12 | $7700.00 | Window Closed / Lapsed |