US4474674A
Expired / Lapsed
US
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Multifunctional additives for functional fluids and lubricants
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1983-06-01
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Granted: 1984-10-02
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Expires: 2003-06-01
Abstract
Abstract There are disclosed novel multifunctional additives for power transmission shift fluids such as automatic transmission fluids which are diethanolamides or diisopropanolamides of alkyl thioglycolic acids or boron, phosphorous or metal reaction products thereof. These additives provide the properties of anti-oxidation, H2S suppression, corrosion inhibition and friction modification.
Inventors
- 👤 Antonio Gutierrez
- 👤 Harold E. Deen
- 👤 Jack Ryer
- 👤 Stanley J. Brois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:29
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C10; C10M; C10M135/00; C10M135/20; C10M135/22; C10M135/26; C10M139/00; C10M159/00; C10M159/12; C10M159/18; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/062; C10M2227/063; C10M2227/065; C10M2227/066; C10M2227/09; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
113 words
A novel compound being: (a) a diethanolamide or diisopropanolamide of a C 16 -C 22 thioglycolic acid, the diethanolamide having the formula: R--S--CH.sub.2 --C(:O)--N--(CH.sub.2 CH.sub.2 OH).sub.2 and the diisopropanolamide having the formula: R--S--CH.sub.2 --C(:O)--N--(CH(CH.sub.3)CH.sub.2 OH).sub.2 wherein R is a C 16 -C 22 n-alkyl or n-alkenyl, or (b) the reaction product of said diethanolamide or diisopropanolamide with a member of the group consisting of (i) and trialkyl phosphite or dialkyl hydrogen phosphite wherein the alkyl has 1 to 4 carbon atoms; and (ii) a boron compound being a boron-containing oxide, acid or ester; and (iii) a complex forming metal compound, the metal being an alkali metal, alkaline earth metal or a transition metal.
Claim 2
Dependent Claim
113 words
A novel compound being: (a) a diethanolamide or diisopropanolamide of a C 16 -C 22 thioglycolic acid, the diethanolamide having the formula: R--S--CH.sub.2 --C(:O)--N--(CH.sub.2 CH.sub.2 OH).sub.2 and the diisopropanolamide having the formula: R--S--CH.sub.2 --C(:O)--N--(CH(CH.sub.3)CH.sub.2 OH).sub.2 wherein R is a C 16 -C 22 n-alkyl or n-alkenyl, or (b) the reaction product of said diethanolamide or diisopropanolamide with a member of the group consisting of (i) and trialkyl phosphite or dialkyl hydrogen phosphite wherein the alkyl has 1 to 4 carbon atoms; and (ii) a boron compound being a boron-containing oxide, acid or ester; and (iii) a complex forming metal compound, the metal being an alkali metal, alkaline earth metal or a transition metal.
Claim 3
Dependent Claim
9 words
The compound of claim 1 wherein R is n-octadecyl.
Claim 4
Dependent Claim
16 words
The compound of claim 1 wherein said diethanolamide or diisopropanolamide is reacted with a boron compound.
Claim 5
Dependent Claim
10 words
A compound of the formula: ##STR6## wherein R is n-octadecyl.
Claim 6
Dependent Claim
10 words
A compound of the formula: ##STR6## wherein R is n-octadecyl.
Claim 7
Dependent Claim
27 words
The compound of claim 1 wherein said diethanolamide or diisopropanolamide is reacted with a zinc, molybdenum or nickel carboxylate of a C 1 -C 4 carboxylic acid.
Claim 8
Dependent Claim
11 words
The compound of claim 1 wherein the carboxylate is an acetate.
Claim 9
Dependent Claim
19 words
The compound of claim 1 wherein the diethanolamide or diisopropanolamide is reacted with a trialkyl or dialkyl hydrogen phosphite.
Claim 10
Dependent Claim
157 words
A hydrocarbon mineral oil power transmission shift fluid composition comprising a major amount of a mineral oil of lubricating viscosity and an oil soluble multifunctional additive present in an amount effective to provide copper and brass corrosion inhibition, oxidation inhibition, friction modification and H 2 S suppression, the additive being the reaction product of: (a) a diethanolamide of a C 16 -C 22 thioglycolic acid, the diethanolamide having the formula: R--S--CH.sub.2 --C(:O)N(CH.sub.2 CH.sub.2 OH).sub.2 and the diisopropanolamide having the formula: R--S--CH.sub.2 --C(:O)--N--(CH(CH.sub.3)CH.sub.2 OH).sub.2 wherein R is C 16 -C 22 n-alkyl or n-alkenyl or (b) the reaction product or said diethanolamide or diisopropanolamide with a member of the group consisting of (i) a trialkyl or dialkyl hydrogen phosphite wherein the alkyl has 1-4 carbon atoms; and (ii) a boron compound being a boron-containing oxide, acid or ester; and (iii) a complex forming metal compound, the metal being an alkali metal, alkaline earth metal or a transition metal.
Claim 11
Dependent Claim
157 words
A hydrocarbon mineral oil power transmission shift fluid composition comprising a major amount of a mineral oil of lubricating viscosity and an oil soluble multifunctional additive present in an amount effective to provide copper and brass corrosion inhibition, oxidation inhibition, friction modification and H 2 S suppression, the additive being the reaction product of: (a) a diethanolamide of a C 16 -C 22 thioglycolic acid, the diethanolamide having the formula: R--S--CH.sub.2 --C(:O)N(CH.sub.2 CH.sub.2 OH).sub.2 and the diisopropanolamide having the formula: R--S--CH.sub.2 --C(:O)--N--(CH(CH.sub.3)CH.sub.2 OH).sub.2 wherein R is C 16 -C 22 n-alkyl or n-alkenyl or (b) the reaction product or said diethanolamide or diisopropanolamide with a member of the group consisting of (i) a trialkyl or dialkyl hydrogen phosphite wherein the alkyl has 1-4 carbon atoms; and (ii) a boron compound being a boron-containing oxide, acid or ester; and (iii) a complex forming metal compound, the metal being an alkali metal, alkaline earth metal or a transition metal.
Claim 12
Dependent Claim
17 words
The composition of claim 8 wherein there is present about 0.01 to 1.0 wt% of said additive.
Claim 13
Dependent Claim
21 words
The composition of claim 9 wherein said additive is the reaction product of said diethanolamide or diisopropanolamide with a boron compound.
Claim 14
Dependent Claim
26 words
The composition of claim 10 wherein said composition is an automatic transmission fluid formulated to contain conventional additives in amounts to provide their normal attendant functions.
Claim 15
Dependent Claim
15 words
The composition of claim 11 wherein said additive is a compound of the formula ##STR7##
Claim 16
Dependent Claim
9 words
The composition of claim 12 wherein R is n-octadecyl.
Claim 17
Dependent Claim
17 words
The composition of claim 12 wherein there is present about 0.1 to 0.75 wt% of said additive.
References Cited (Backward Citations)
US4198304A
Cited
US4394277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-02 | 1988-04-02 | 1988-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-02 | 1992-04-02 | 1992-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-02 | 1996-04-02 | 1996-10-02 | $7700.00 | Window Closed / Lapsed |