US4555353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Borated phosphonates as lubricant and fuel additives
Assignee: Mobil Oil AS
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Filing: 1985-03-13
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Granted: 1985-11-26
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Expires: 2005-03-13
Abstract
Abstract Compounds made by reacting a vicinal diol with a hydrocarbyl phosphite and then borating the resulting product have been found to be effective friction reducers when added to lubricants or fuels. This is true in any use of lubricants, but is especially true when they are used in internal combustion engines. In the latter case, the fuels used, when they contain the additive, aid in the reduction of friction in the engine.
Inventors
- 👤 Andrew G. Horodysky
- 👤 Phillip S. Landis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:20
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/301; C10L1/303; C10L10/04; C10M; C10M139/00; C10M2227/00; C10M2227/06; C10M2227/061
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
112 words
A lubricant composition comprising a major proportion of a lubricant and from about 0.1 to about 10% by weight of the total composition of a reaction product made by reacting a hydrocarbyl vicinal diol containing 10 to 30 carbon atoms, a dihydrocarbyl phosphite of the formula ##STR2## wherein R 1 is a hydrocarbyl group containing 1 to 30 carbon atoms and R 2 is a hydrocarbyl group containing 1 to 6 carbon atoms and a boron compound, the reaction being run at from about 70° C. to about 260° C. using amounts of reactants such that in the final product at least about 5% of the hydroxy groups originally available are borated.
Claim 2
Dependent Claim
112 words
A lubricant composition comprising a major proportion of a lubricant and from about 0.1 to about 10% by weight of the total composition of a reaction product made by reacting a hydrocarbyl vicinal diol containing 10 to 30 carbon atoms, a dihydrocarbyl phosphite of the formula ##STR2## wherein R 1 is a hydrocarbyl group containing 1 to 30 carbon atoms and R 2 is a hydrocarbyl group containing 1 to 6 carbon atoms and a boron compound, the reaction being run at from about 70° C. to about 260° C. using amounts of reactants such that in the final product at least about 5% of the hydroxy groups originally available are borated.
Claim 3
Dependent Claim
18 words
The composition of claim 1 wherein R 1 is an alkyl, alkenyl, aryl, aralkyl, alkaryl or cycloalkyl group.
Claim 4
Dependent Claim
14 words
The composition of claim 1 wherein R 2 is an alkyl, or aryl group.
Claim 5
Dependent Claim
26 words
The composition of claim 2 wherein R 1 is a methyl, ethyl, butyl, hexyl, octyl, decyl, tetradecyl, octadecyl, eicosyl, triacontyl, ethylene, butylene, octenyl or oleyl group.
Claim 6
Dependent Claim
27 words
The composition of claim 3 wherein R 2 is selected from the group consisting of methyl, ethyl, propyl, butyl, pentyl, hexyl, the saturated members thereof and phenyl.
Claim 7
Dependent Claim
53 words
The composition of claim 1 wherein the boron compound is boric oxide, a metaborate or is of the formula (R.sup.3 O).sub.x B(OH).sub.y wherein R 3 is a C 1 to C 6 alkyl group, x is 0 to 3 and y is 0 to 3, the sum of x and y being 3.
Claim 8
Dependent Claim
12 words
The composition of claim 6 wherein the boron compound is boric acid.
Claim 9
Dependent Claim
40 words
The composition of claim 6 wherein the boron compound is mono-, di- or trimethyl borate, mono-, di- or triethyl borate, mono-, di or tripropyl borate, mono-, di- or tributyl borate, mono-, di-, triamyl borate or mono-, di- or trihexyl borate.
Claim 10
Dependent Claim
17 words
The composition of claim 1 wherein the vicinal diol is 1,2-mixed C 15 to C 18 alkanediols.
Claim 11
Dependent Claim
14 words
The composition of claim 1 wherein the vicinal diol is a C 12 diol.
Claim 12
Dependent Claim
26 words
The composition of claim 9 wherein the vicinal diol is 1,2-mixed pentadecane diol-octadecane diol, the phosphite is dimethyl phosphite and the boron compound is boric acid.
Claim 13
Dependent Claim
23 words
The composition of claim 10 wherein the vicinal diol is 1,2-dodecanediol, the phosphite is dimethyl phosphite and the boron compound is boric acid.
Claim 14
Dependent Claim
41 words
The composition of claim 1 wherein the lubricant is (1) a mineral oil, (2) a synthetic oil or mixture of synthetic oil, (3) a mixture of the oils of (1) and (2) or (4) a grease from (1), (2) or (3).
Claim 15
Dependent Claim
12 words
The composition of claim 13 wherein the lubricant is a mineral oil.
Claim 16
Dependent Claim
12 words
The composition of claim 13 wherein the lubricant is a synthetic oil.
Claim 17
Dependent Claim
18 words
The composition of claim 13 wherein the lubricant is a mixture as defined in (2) and (3) thereof.
Claim 18
Dependent Claim
16 words
The composition of claim 13 wherein the lubricant is a grease as defined in (4) thereof.
Claim 19
Dependent Claim
25 words
The lubricant composition of claim 1 containing one or more additives selected from the group consisting of zinc dialkyl dithiophosphates, sulfides, disulfides and polymeric detergents.
Claim 20
Independent Claim
132 words
A method for reducing fuel consumption in an internal combustion engine by lubricating said engine with a lubricant composition comprising a major proportion of lubricant and from about 0.1% to about 10% by weight of the total composition of a product of reaction made by reacting a hydrocarbyl vicinal diol containing 10 to 30 carbon atoms, a dihydrocarbyl phosphite of the formula ##STR3## wherein R 1 is a hydrocarbyl group containing 1 to 30 carbon atoms and R 2 is a hydrocarbyl group containing 1 to 6 carbon atoms and a boron compound, the reaction to make the product being run at from about 70° C. to about 260° C. using amounts of reactants such that in the final product at least about 5% of the hydroxy groups originally available are borated.
Claim 21
Independent Claim
132 words
A method for reducing fuel consumption in an internal combustion engine by lubricating said engine with a lubricant composition comprising a major proportion of lubricant and from about 0.1% to about 10% by weight of the total composition of a product of reaction made by reacting a hydrocarbyl vicinal diol containing 10 to 30 carbon atoms, a dihydrocarbyl phosphite of the formula ##STR3## wherein R 1 is a hydrocarbyl group containing 1 to 30 carbon atoms and R 2 is a hydrocarbyl group containing 1 to 6 carbon atoms and a boron compound, the reaction to make the product being run at from about 70° C. to about 260° C. using amounts of reactants such that in the final product at least about 5% of the hydroxy groups originally available are borated.
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) | 1988-11-25 | 1989-05-27 | 1989-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-25 | 1993-05-27 | 1993-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-25 | 1997-05-27 | 1997-11-26 | $7700.00 | Window Closed / Lapsed |