US4816171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant compositions containing reaction products of formic acid and dialkylenetriamines
Assignee: Mobil Oil AS
•
Filing: 1988-05-27
•
Granted: 1989-03-28
•
Expires: 2008-05-27
Abstract
Abstract The reaction products of the appropriate triamine and organic monocarboxylic acid demonstrate friction reducing properties when formulated into lubricants, particularly lubricating oils, and fuel consumption reduction properties when formulated into such lubricants or into fuels.
Inventors
- 👤 Andrew G. Horodysky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:57
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224; C10M; C10M133/00; C10M133/02; C10M133/16; C10M133/18; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
69 words
A lubricant composition comprising a major proportion of a lubricant and an antifriction amount of the reaction product obtained by reacting at an elevated temperature for a time sufficient to remove water formed during the reaction a triamine having alkylene substituents of greater than about 12 carbon atoms each and formic acid in a molar ratio of triamine to formic acid of between about 1:1 and about 1:2 respectively.
Claim 2
Dependent Claim
69 words
A lubricant composition comprising a major proportion of a lubricant and an antifriction amount of the reaction product obtained by reacting at an elevated temperature for a time sufficient to remove water formed during the reaction a triamine having alkylene substituents of greater than about 12 carbon atoms each and formic acid in a molar ratio of triamine to formic acid of between about 1:1 and about 1:2 respectively.
Claim 3
Dependent Claim
31 words
The composition of claim 1 wherein said amine is a triamine containing substituents selected from the group consisting of oleyl, soya, coco, tallow, dodecyl, tetradecyl, octadecyl, eicosyl, triacontyl and mixtures thereof.
Claim 4
Dependent Claim
65 words
The composition of claim 1 wherein said triamine is selected from the group consisting of N-oleyl diethylenetriamine, N-soya diethylenetriamine, N-coco diethylenetriamine, N-tallow diethylenetriamine, N-dodecyl diethylenetriamine, N-tetradecyl diethylenetriamine N-octadecyl diethylenetriamine, N-eicosyl diethylenetriamine, N-triacontyl diethylenetriamine, N-oleyl dipropylenetriamine, N-soya dipropylenetriamine, N-coco dipropylenetriamine, N-tallow dipropylenetriamine, N-dodecyl dipropylenetriamine, N-tetradecyl dipropylenetriamine, N-octadecyl dipropylenetriamine, N-eicosyl dipropylenetriamine, N-triacontyl dipropylenetriamine, the corresponding N-C 12 to C 30 hydrocarbyl dibutylenetriamine members and corresponding mixed-member triamines.
Claim 5
Dependent Claim
39 words
The composition of claim 1 wherein the lubricant is: (1) a mineral lubricating oil; (2) a synthetic oil or a mixture of synthetic oils; (3) a mixture of (1) and (2) or a grease of (1), (2) or (3).
Claim 6
Dependent Claim
12 words
The composition of claim 1 wherein the lubricant is a mineral oil.
Claim 7
Dependent Claim
12 words
The composition of claim 1 wherein the lubricant is a synthetic oil.
Claim 8
Dependent Claim
11 words
The composition of claim 1 wherein the lubricant is a grease.
Claim 9
Dependent Claim
15 words
The composition of claim 1 additionally containing a phenate, sulfonate, succinimide or metal dialkyl phosphorodithioate.
Claim 10
Dependent Claim
21 words
The lubricant composition of claim 1 wherein the alkylene substituents in the reaction product are greater than about 18 carbon atoms.
References Cited (Backward Citations)
US3778372A
Cited
US3884822A
Cited
US4743389A
Cited
US4551257A
Cited
US4581037A
Cited
US4764183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-27 | 1992-09-26 | 1993-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-27 | 1996-09-26 | 1997-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-27 | 2000-09-26 | 2001-03-28 | $7700.00 | Window Closed / Lapsed |