US3180832A - Oil compositions containing anti-wear additives - Google Patents
Oil compositions containing anti-wear additives Download PDFInfo
- Publication number
- US3180832A US3180832A US263425A US26342563A US3180832A US 3180832 A US3180832 A US 3180832A US 263425 A US263425 A US 263425A US 26342563 A US26342563 A US 26342563A US 3180832 A US3180832 A US 3180832A
- Authority
- US
- United States
- Prior art keywords
- oil
- dimer acid
- wear
- additive
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/08—Use of additives to fuels or fires for particular purposes for improving lubricity; for reducing wear
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/19—Esters ester radical containing compounds; ester ethers; carbonic acid esters
- C10L1/191—Esters ester radical containing compounds; ester ethers; carbonic acid esters of di- or polyhydroxyalcohols
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/06—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic nitrogen-containing compound
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/18—Organic compounds containing oxygen
- C10L1/188—Carboxylic acids; metal salts thereof
- C10L1/1881—Carboxylic acids; metal salts thereof carboxylic group attached to an aliphatic carbon atom
- C10L1/1883—Carboxylic acids; metal salts thereof carboxylic group attached to an aliphatic carbon atom polycarboxylic acid
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- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/22—Organic compounds containing nitrogen
- C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
- C10L1/2222—(cyclo)aliphatic amines; polyamines (no macromolecular substituent 30C); quaternair ammonium compounds; carbamates
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
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- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
- C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
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- C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
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- C10M2207/22—Acids obtained from polymerised unsaturated acids
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- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
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- C10M2207/30—Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compounds: monohydroxyl compounds, polyhydroxy xompounds, monocarboxylic acids, polycarboxylic acids or hydroxy carboxylic acids
- C10M2207/302—Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compounds: monohydroxyl compounds, polyhydroxy xompounds, monocarboxylic acids, polycarboxylic acids or hydroxy carboxylic acids derived from the combination of monocarboxylic acids, dicarboxylic acids and dihydroxy compounds only and having no free hydroxy or carboxyl groups
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- C10M2207/304—Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compounds: monohydroxyl compounds, polyhydroxy xompounds, monocarboxylic acids, polycarboxylic acids or hydroxy carboxylic acids derived from the combination of monohydroxy compounds, dihydroxy compounds and dicarboxylic acids only and having no free hydroxy or carboxyl groups
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- C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
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- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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- C10M2215/065—Phenyl-Naphthyl amines
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- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C10M2219/108—Phenothiazine
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- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2070/00—Specific manufacturing methods for lubricant compositions
- C10N2070/02—Concentrating of additives
Definitions
- This invention relates to additives for hydrocarbon liquid compositions.
- the invention relates to an additive mixture for hydrocarbon liquid compositions for reducing wear, wherein said additive mixture consists of an oil-soluble dimer acid with a diol or a polyol.
- Another objective of the present invention is to improve the lubricity of distillate fuels boiling in the range from about 50 to 750 F.
- fuels include aviation turbo-jet fuels, rocket fuel (MILR-25576B), kerosenes, diesel fuels, and heating oils.
- Aviation turbojet fuels in which the dimer acid/ glycol mixtures may be used normally boil between about 50 and about 550 1 and are used in both military and civilian aircraft.
- Such fuels are more fully defined by US.
- Kerosenes and heating oils will normally have boiling ranges between about 300 and about 750 F.
- additives of the present invention may also be employed in conjunction with a variety of other additives commonly used in fuels such as those set forth above.
- dimer acids for use in conjunction with the present $380,832 Patented Apr. 27, 1965 invention are dimers of linoleic acid. The formation of this dimer acid may be illustrated as follows:
- dimer acid is not necessarily 100% dimer acid, for example, the following compositions of acid are commercially available:
- dio-ls are useful for the present invention.
- a dihydroxy compound can be prepared by esterifying one mole of dimer acid with two moles of a glycol, thus:
- R is the radical of a glycol and R" is the hydrocarbon part of the dimer acid.
- the diol represented by the above formula is suitable to be used with dimer acid according to the present invention.
- Other suitable diols are oxa alkane diols obtained for example by hydrolysis of ethylene oxide, propylene oxide or other epoxy compounds.
- T-hese diols may have molecular weights between 200 and 2000.
- An example is 3,6,9atrioxa-l,4,7,l0- tetramethyl undecane-l,ll-diol.
- R is an alkyl radical of 10 to 40 carbon atoms, e.g. 1,12dodecyl diamine and 1,9-heptadecyl diamine.
- the preferred glycols which give excellent results are those containing from about 2 to 5 carbon atoms, for example, ethylene glycol and 1,4-butane diol.
- the oil compositions of the invention will comprise a major proportion of oil and about 0.01 to 2.0%, preferably 0.1 to 1.0 wt. percent of the additive mixture of the invention.
- this additive mixture generally will have substantially equimolar proportions of dimer acid and glycol although it i to be understood that compositions encompassed Within the invention can have a slight excess of either material. Thus, broadly speaking there maybe present about 0.8 to 1.2 molar proportions of the glycol per molar proportion of dimer acid.
- additive concentrate compositions containing up to 30 wt. percent of the additive mixture may be prepared as solutions or dispersions, depending of course upon the maximum oil-solubility of the additive mix tures.
- liquid hydrocarbons which may be used as base fuels are mineral lubricating oils or synthetic lubricating oils.
- the synthetic oils will include diester oils such as di(2-ethylhcxyl) sebacate; complex ester oils such as those formed from dicarboxylic acids, glycols and either monobasic acids or monohydrie alcohols; silicone oils; sulfide esters; organic carbonates; and other synthetic oils known to the art. Warming the oil and additive materials may be necessary in order to obtain solution if the additives are solid at normal temperature.
- additives may be added to the oil compositions of the present invention to form a finished oil.
- additives include oxidation inhibitors such as phenothiazine or phenyl a-naphthylamine; rust inhibitors such as lecithin or petroleum sulfonates; sorbitan monooleate; detergents such as the barium salt of isononyl phenol sulfide; pour point dipressant such as copolymers of vinyl acetate with fumaric acid esters of coconut oil alcohols; viscosity index improvers such as polymethacrylates; etc. i
- crankcase lubricating oil composition was prepared by simple mixing into oil, equimolar proportions, 0.258 wt. percent of the C alkane .diol previously described and 0.568 wt. percent of the dimer of linoleic acid (also previously described).
- the oil itself was a mineral lubricating oil of 100 SUS at 100 E, having a viscosity index of about 95, and prepared by solvent extraction of 21 Mid-Continent crude.
- the amount of wear occur ing on the radioactive steel valve lifiters was determined by first measuring the total amount of radioactive wear debris contained in the used oil by means of a scintillation detector connected to a sealer. A standard solution containing a known weight of a radioactive valve lifter was also counted. From this, the concentration of lifter wear debris in the oil sample is calculated.
- EXAMPLE 2 Another test was carried out to measure the metallic contact and friction between sliding, lubricated surfaces.
- the apparatus used is described in the Journal, entitled ASLE Transactions, v01. 4, pages 1-11 in 1961.
- ASLE is American Society of Lubrication Engineers.
- the system consists basically of a fixed metal ball loaded against a rotating cylinder.
- the extent of metallic contact is determined by measuring both the instantaneous and average electrical resistance between two surfaces.
- a Water-free lubricating oil composition comprising a major amount of mineral lubricating oil containing as the sole anti-Wear agents 0.1 to 5.0 wt. percent of an additive mixture consisting of linoleic dimer acid and an alkane glycol of the general formula:
- a water-free lubricating oil composition comprising a major amount of lubricating oil and about 0.1 to 30 wt. percent of an adidtive mixture of a linoleic dimer acid and a polyol having the general formula:
- a liquid hydrocarbon oil composition comprising a major amount of a liquid hydrocarbon oil and about 0.01 to 2 wt. percent of an additive mixture of a linoleic dimer acid and a diol wherein said diol has from 2 to .carbon atoms in the molecule and wherein there is about 0.8 to 1.2 molar proportions of said diol per molar pro portion of said linoleic dimer acid.
- composition as defined by claim 3 wherein said diol is ethylene glycol.
- composition as defined by claim 3 wherein said diol has from about 2 to 5 carbon atoms in the molecule.
- composition as defined by claim 6 wherein about 0.01 to 1.0 weight percent of said additive mixture is used.
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- General Chemical & Material Sciences (AREA)
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Description
United States Patent 3,130,832 GIL COMPOfiITlUNS QONTAENHNG ANTI-WEAR ADDETEVEE? Michael J. Furey, Berkeley Heights, NJ, assignor to Esso Research and Engineering Qompany, a corporation of Delaware N 0 Drawing. Filed Mar. 7 1963, her. No. 253,425
'7 Claims. ill. 252--56) This invention relates to additives for hydrocarbon liquid compositions. Particularly, the invention relates to an additive mixture for hydrocarbon liquid compositions for reducing wear, wherein said additive mixture consists of an oil-soluble dimer acid with a diol or a polyol.
The present application is a continuation-in-part of Serial No. 816,704, filed May 29, 1959, entitled Oil Compositions Containing Anti-Wear Additives, inventor: Michael J. Furey.
Many oil compositions are designed for lubricating under boundary conditions (e.g. crankcase oils, aviation oils and gear oils) where a serious problem is the prevention of wear of the metal surfaces that occurs under heavy loading. One common example of such heavy loading occurs in the operation of the valve lifter mecha nism of gasoline engines. Here, pressures of 50,000 to 100,000 psi. can occur between the valve lifter and its actuating cam and metal wear is accordingly high. It has now been found that metal wear can be significantly reduced by adding to the lubricant, a mixture of a dimer acid and a glycol, preferably in stoichiometric quantities.
In a different environment, it is well-known in the art to improve the quality of jet fuels by removing from these fuels undesirable constituents such as polar compounds, sulfur compounds, and nitrogen compounds; but it has been found that, the viscosity of these fuels being relatively low, when these impurities are removed, the finished pure fuel lacks lubricity, which is essential in order to keep certain engine parts from excessive wear. These engine parts among others comprise the fuel pumps wherein scuffing and wear is a problem.
Therefore, another objective of the present invention is to improve the lubricity of distillate fuels boiling in the range from about 50 to 750 F. Such fuels include aviation turbo-jet fuels, rocket fuel (MILR-25576B), kerosenes, diesel fuels, and heating oils. Aviation turbojet fuels in which the dimer acid/ glycol mixtures may be used normally boil between about 50 and about 550 1 and are used in both military and civilian aircraft. Such fuels are more fully defined by US. Military Specifications MERE-56241 MILF25656A, MIL-F-25554A, MIL- F-25558B, and amendments thereto, and in ASTM D- 1655-62T. Kerosenes and heating oils will normally have boiling ranges between about 300 and about 750 F. and are more fully described in ASTM Specification D- 396-48T and supplements thereto, where they are referred to as No. 1 and No. 2 fuel oils. Diesel fuels in which the dimer acid/ glycol mixtures may be employed are described in detail in ASTM Specification D-9753 ST and later versions of the same specification.
The additives of the present invention may also be employed in conjunction with a variety of other additives commonly used in fuels such as those set forth above.
Typical of such additives are rust inhibitors, anti-emulsifying agents, corrosion inhibitors, anti-oxidants, dispersants, dyes, dye stabilizers, haze inhibitors, antistatic agents and the like. It will frequently be found convenient to prepare additive concentrates for use in the various types of fuels and thus add all of the additives simultaneousiy. The dimer acids for use in conjunction with the present $380,832 Patented Apr. 27, 1965 invention are dimers of linoleic acid. The formation of this dimer acid may be illustrated as follows:
While the invention is described using an admixture of a dimer acid and a glycol, it is to be understood that the dimer acid is not necessarily 100% dimer acid, for example, the following compositions of acid are commercially available:
Composition, Wt. Percent A n o D Dimer Acid 95 76 21 Trimer Acid 4 22 23 79 Monomer Acid 1 3 l 0 wherein the C andC allryl groups are branched. This material was prepared by aldolization of iso-octyl aldehyde, followed by hydrogenation. The iso-octyl aldehyde that was used, was an isomeric mixture of branched chain aldehydes (predominantly methyl branched) prepared in the first stage of the well-known Oxo process. Here a C monoolefin (prepared from butylene and propylene feed, is reacted with hydrogen and carbon monoxide under pressures of 1,000 to 3,000 psi. and temperatures of about 300 to 400 F. in the presence of a cobalt carbonyl catalyst to form iso-octyl aldehyde.
Other dio-ls are useful for the present invention. For instance, a dihydroxy compound can be prepared by esterifying one mole of dimer acid with two moles of a glycol, thus:
wherein R is the radical of a glycol and R" is the hydrocarbon part of the dimer acid. The diol represented by the above formula is suitable to be used with dimer acid according to the present invention. Other suitable diols are oxa alkane diols obtained for example by hydrolysis of ethylene oxide, propylene oxide or other epoxy compounds. T-hese diols may have molecular weights between 200 and 2000. An example is 3,6,9atrioxa-l,4,7,l0- tetramethyl undecane-l,ll-diol.
wherein R is an alkyl radical of 10 to 40 carbon atoms, e.g. 1,12dodecyl diamine and 1,9-heptadecyl diamine.
The preferred glycols which give excellent results are those containing from about 2 to 5 carbon atoms, for example, ethylene glycol and 1,4-butane diol.
The oil compositions of the invention will comprise a major proportion of oil and about 0.01 to 2.0%, preferably 0.1 to 1.0 wt. percent of the additive mixture of the invention. As discussed above, this additive mixture generally will have substantially equimolar proportions of dimer acid and glycol although it i to be understood that compositions encompassed Within the invention can have a slight excess of either material. Thus, broadly speaking there maybe present about 0.8 to 1.2 molar proportions of the glycol per molar proportion of dimer acid. Also additive concentrate compositions containing up to 30 wt. percent of the additive mixture may be prepared as solutions or dispersions, depending of course upon the maximum oil-solubility of the additive mix tures.
Among the liquid hydrocarbons which may be used as base fuels are mineral lubricating oils or synthetic lubricating oils. The synthetic oils will include diester oils such as di(2-ethylhcxyl) sebacate; complex ester oils such as those formed from dicarboxylic acids, glycols and either monobasic acids or monohydrie alcohols; silicone oils; sulfide esters; organic carbonates; and other synthetic oils known to the art. Warming the oil and additive materials may be necessary in order to obtain solution if the additives are solid at normal temperature.
Other additives, of course, may be added to the oil compositions of the present invention to form a finished oil. Such additives include oxidation inhibitors such as phenothiazine or phenyl a-naphthylamine; rust inhibitors such as lecithin or petroleum sulfonates; sorbitan monooleate; detergents such as the barium salt of isononyl phenol sulfide; pour point dipressant such as copolymers of vinyl acetate with fumaric acid esters of coconut oil alcohols; viscosity index improvers such as polymethacrylates; etc. i
The invention will be further understood by reference to the following examples which illustrate a preferred form of the invention.
EXAMPLE 1 A crankcase lubricating oil composition was prepared by simple mixing into oil, equimolar proportions, 0.258 wt. percent of the C alkane .diol previously described and 0.568 wt. percent of the dimer of linoleic acid (also previously described). The oil itself was a mineral lubricating oil of 100 SUS at 100 E, having a viscosity index of about 95, and prepared by solvent extraction of 21 Mid-Continent crude.
The base oil without additive and the above composi tion containing the additives of the invention were each tested according to the procedure described in an article, by M. J. Furey and J. F. Kunc, entitled A Radiotracer Approach to the Study of Engine Valve Train Lubrication. This article was published in the July 1958 issue of Lubrication Engineering Journal of the American Society of Lubrication Engineers, pages 302 to 309. Briefly described, this test was carried out as follows: A laboratory V-8 gasoline engine was equipped with radioactive steel valve lifters. The engine was run using the oil composition for a period of 3 hours at 1000 r.p.m. with noload and with the valve lifters under normal spring tension, while the jacket outlet temperature of the circulating water was controlled at 180 F., and the oil temperature was between 180-190 F. After 3 hours operation, the amount of wear occur ing on the radioactive steel valve lifiters was determined by first measuring the total amount of radioactive wear debris contained in the used oil by means of a scintillation detector connected to a sealer. A standard solution containing a known weight of a radioactive valve lifter was also counted. From this, the concentration of lifter wear debris in the oil sample is calculated.
The above test procedure was repeated on the base oil per se (i.e. without any additive) as a reference, followed by another test using the base oil containing 0.826 wt. percent of the previously described dimer of linoleic acid. Then the base oil was once more run in the test, followed by still another test wherein the base oil contained 0.826 wt. percent of the previously described C alkane diol. By thus running the base oil Without addition before each of the additive-containing oils were run, any carry-over effect from previous additives is eliminated. The result of the test of each additive-containing oil was calculated as percent wear relative to the wear encountered by the preceding reference test. The compositions tested and the results obtained are summarized in the following table:
Table l INFLUENCE OF GLYCOLS AND DIMER ACIDS ON VALVE LIFTER WEAR The above data show that the mixture of the C glycol and the C dimer acid in a 1:1 molar ratio greatly reduced the valve train wear when used at a total concentration of 0.826 wt. percent. At the same total concentration, both the dimer acid and glycol showed a much lesser eflect, when used alone. This shows that neither the glycol or the dimer acid alone was nearly as effective as the combination of these two materials. The above described radioactive valve train test has been found to correlate well with actual valve train Wear that occurs during normal driving. Furthermore, remarkably, when the reference oil was run after thetest oil that contained the additive mixture of the present invention, the rate of Wear of the valve lifters remained at about 13% of reference for 3 hours, before returning to but when the reference oil was run after the other test oils containing only one of the additive ingredients, the rate of wear rose immediately to 100% of reference, i.e. there was no carryover of beneficial effect, except with the oil containing the additive mixture of the present invention.
EXAMPLE 2 Another test was carried out to measure the metallic contact and friction between sliding, lubricated surfaces. The apparatus used is described in the Journal, entitled ASLE Transactions, v01. 4, pages 1-11 in 1961. ASLE is American Society of Lubrication Engineers. In essence, the system consists basically of a fixed metal ball loaded against a rotating cylinder. The extent of metallic contact is determined by measuring both the instantaneous and average electrical resistance between two surfaces.
In a severe test at 480 r.-p.m. and with a Hertz load of 141,000 lbs/sq. in., the following results were obtained.
Percent Decrease in Friction Percent Lube oil with viscosity of 100 S.U.S. at 100 F Same oil as No. 1, with 1% equimolar mixture of dimer acid and 1,120ctadceane diol S From the above it is apparent that the additive appreciably reduced the friction and metallic contact.
EXAMPLE 3 Additional tests were carried out using the additive or? the present invention in a jet fuel (U .S. Military Specification MlL-F-5624F) with the following results:
Additive in Jet Fuel Ryder Scufi Rating (#/in.)
1,433. 480 (No sig. efiect). 776 (Sig. but not large).
What is claimed is: 1. A Water-free lubricating oil composition comprising a major amount of mineral lubricating oil containing as the sole anti-Wear agents 0.1 to 5.0 wt. percent of an additive mixture consisting of linoleic dimer acid and an alkane glycol of the general formula:
CgHrg-C-CH:OH
C H1 I OH H in substantially equimolar proportions.
2. A water-free lubricating oil composition comprising a major amount of lubricating oil and about 0.1 to 30 wt. percent of an adidtive mixture of a linoleic dimer acid and a polyol having the general formula:
and wherein there is about 0.8 to 1.2 molar proportions of said polyol per molar proportion of said linoleic dimer acid.
3. A liquid hydrocarbon oil composition comprising a major amount of a liquid hydrocarbon oil and about 0.01 to 2 wt. percent of an additive mixture of a linoleic dimer acid and a diol wherein said diol has from 2 to .carbon atoms in the molecule and wherein there is about 0.8 to 1.2 molar proportions of said diol per molar pro portion of said linoleic dimer acid.
4. Composition as defined by claim 3 wherein said diol is ethylene glycol.
5. CTomposition as defined by claim 4 wherein said dimer acid has constituents of at least 50% pure dimer acid.
6. Composition as defined by claim 3 wherein said diol has from about 2 to 5 carbon atoms in the molecule.
7. Composition as defined by claim 6 wherein about 0.01 to 1.0 weight percent of said additive mixture is used.
Reterences Cited bythe Examiner UNITED STATES PATENTS 2,334,158 11/43 Von Fuchs et al 252-56 2,424,588 7/47 Sparks et al. 25256 2,497,968 2/50 Young et al. 25256 X DANIEL E. WYMAN, Primary Examiner.
JOSEPH R. LIBERMAN, Examiner.
Claims (1)
1. A WATER-FREE LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF MINERAL LUBRICATING OIL CONTAINING AS THE SOLE ANTI-WEAR AGENTS 0.1 TO 5.0 WT. PERCENT OF AN ADDITIVE MIXTURE CONSISTING OF LINOLEIC DIMER ACID AND AN ALKANE GLYCOL OF THE GENERAL FORMULA:
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US263425A US3180832A (en) | 1963-03-07 | 1963-03-07 | Oil compositions containing anti-wear additives |
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US263425A US3180832A (en) | 1963-03-07 | 1963-03-07 | Oil compositions containing anti-wear additives |
FR963378A FR1410216A (en) | 1964-02-11 | 1964-02-11 | Lubricating oil compositions containing antiwear additives |
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US3291735A (en) * | 1964-06-01 | 1966-12-13 | Gen Electric | Organopolysiloxane lubricants |
US3346355A (en) * | 1964-07-10 | 1967-10-10 | Texaco Inc | Jet fuel composition |
US3484375A (en) * | 1966-12-30 | 1969-12-16 | Exxon Research Engineering Co | Lubricating oils and fuels containing organic phosphite reaction products |
US4105571A (en) * | 1977-08-22 | 1978-08-08 | Exxon Research & Engineering Co. | Lubricant composition |
US4132662A (en) * | 1978-01-05 | 1979-01-02 | Emery Industries, Inc. | Rolling oil for aluminous metals |
FR2494712A1 (en) * | 1980-11-24 | 1982-05-28 | Chevron Res | LUBRICATING OIL AND METHOD FOR REDUCING FUEL CONSUMPTION OF INTERNAL COMBUSTION ENGINES |
US4376711A (en) * | 1977-04-27 | 1983-03-15 | Exxon Research And Engineering Co. | Lubricant composition |
EP0078699A2 (en) * | 1981-11-03 | 1983-05-11 | Exxon Research And Engineering Company | Method of retarding corrosion in a petroleum treatment or processing operation |
US4406803A (en) * | 1980-11-24 | 1983-09-27 | Chevron Research Company | Method for improving fuel economy of internal combustion engines |
US4459223A (en) * | 1982-05-05 | 1984-07-10 | Exxon Research And Engineering Co. | Lubricant oil composition with improved friction reducing properties |
US4479883A (en) * | 1982-01-06 | 1984-10-30 | Exxon Research & Engineering Co. | Lubricant composition with improved friction reducing properties containing a mixture of dithiocarbamates |
US4617134A (en) * | 1980-11-10 | 1986-10-14 | Exxon Research And Engineering Company | Method and lubricant composition for providing improved friction reduction |
US4684473A (en) * | 1986-03-31 | 1987-08-04 | Exxon Research And Engineering Company | Lubricant oil composition with improved friction reducing properties |
EP0330523A2 (en) * | 1988-02-26 | 1989-08-30 | Exxon Chemical Patents Inc. | Friction modified oleaginous concentrates of improved stability |
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WO1992007923A1 (en) * | 1990-10-26 | 1992-05-14 | Virginia Polytechnic Institute And State University | Compositions for reducing wear on ceramic surfaces |
US5284492A (en) * | 1991-10-01 | 1994-02-08 | Nalco Fuel Tech | Enhanced lubricity fuel oil emulsions |
US5716911A (en) * | 1990-10-26 | 1998-02-10 | Virginia Tech Intellectual Property, Inc. | Method for reducing friction and wear of rubbing surfaces using anti-wear compounds in gaseous phase |
US5743922A (en) * | 1992-07-22 | 1998-04-28 | Nalco Fuel Tech | Enhanced lubricity diesel fuel emulsions for reduction of nitrogen oxides |
US5851964A (en) * | 1997-01-31 | 1998-12-22 | Virginia Tech Intellectual Properties, Inc. | Wear reduction using cyclic amide compounds |
US5880072A (en) * | 1998-01-14 | 1999-03-09 | Virginia Tech Intellectual Properties, Inc. | Wear reducing compositions and methods for their use |
US20080139426A1 (en) * | 2006-12-11 | 2008-06-12 | Afton Chemical Corporation | Lubricating composition |
US8486873B2 (en) | 2010-03-31 | 2013-07-16 | Chevron Oronite Company Llc | Lubricating oil compositions containing epoxide antiwear agents |
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Cited By (34)
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US3291735A (en) * | 1964-06-01 | 1966-12-13 | Gen Electric | Organopolysiloxane lubricants |
US3346355A (en) * | 1964-07-10 | 1967-10-10 | Texaco Inc | Jet fuel composition |
US3484375A (en) * | 1966-12-30 | 1969-12-16 | Exxon Research Engineering Co | Lubricating oils and fuels containing organic phosphite reaction products |
US4376711A (en) * | 1977-04-27 | 1983-03-15 | Exxon Research And Engineering Co. | Lubricant composition |
US4105571A (en) * | 1977-08-22 | 1978-08-08 | Exxon Research & Engineering Co. | Lubricant composition |
DE2833171A1 (en) * | 1977-08-22 | 1979-03-01 | Exxon Research Engineering Co | STORAGE LUBRICANTS |
US4132662A (en) * | 1978-01-05 | 1979-01-02 | Emery Industries, Inc. | Rolling oil for aluminous metals |
US4617134A (en) * | 1980-11-10 | 1986-10-14 | Exxon Research And Engineering Company | Method and lubricant composition for providing improved friction reduction |
US4406803A (en) * | 1980-11-24 | 1983-09-27 | Chevron Research Company | Method for improving fuel economy of internal combustion engines |
FR2494712A1 (en) * | 1980-11-24 | 1982-05-28 | Chevron Res | LUBRICATING OIL AND METHOD FOR REDUCING FUEL CONSUMPTION OF INTERNAL COMBUSTION ENGINES |
EP0078699A2 (en) * | 1981-11-03 | 1983-05-11 | Exxon Research And Engineering Company | Method of retarding corrosion in a petroleum treatment or processing operation |
EP0078699A3 (en) * | 1981-11-03 | 1983-08-31 | Exxon Research And Engineering Company | Method of retarding corrosion in a petroleum treatment or processing operation |
US4396492A (en) * | 1981-11-03 | 1983-08-02 | Exxon Research And Engineering Co. | Method for retarding corrosion in petroleum processing operation using N-methyl pyrrolidone |
US4479883A (en) * | 1982-01-06 | 1984-10-30 | Exxon Research & Engineering Co. | Lubricant composition with improved friction reducing properties containing a mixture of dithiocarbamates |
US4459223A (en) * | 1982-05-05 | 1984-07-10 | Exxon Research And Engineering Co. | Lubricant oil composition with improved friction reducing properties |
US4684473A (en) * | 1986-03-31 | 1987-08-04 | Exxon Research And Engineering Company | Lubricant oil composition with improved friction reducing properties |
EP0330523A2 (en) * | 1988-02-26 | 1989-08-30 | Exxon Chemical Patents Inc. | Friction modified oleaginous concentrates of improved stability |
US5282991A (en) * | 1988-02-26 | 1994-02-01 | Exxon Chemical Patents Inc. | Friction modified oleaginous concentrates of improved stability |
EP0330523A3 (en) * | 1988-02-26 | 1990-07-18 | Exxon Chemical Patents Inc | Friction modified oleaginous concentrates of improved stability |
US5021173A (en) * | 1988-02-26 | 1991-06-04 | Exxon Chemical Patents, Inc. | Friction modified oleaginous concentrates of improved stability |
EP0331401A2 (en) * | 1988-02-26 | 1989-09-06 | Robert Oklejas | Energy recovery pump device |
US5716911A (en) * | 1990-10-26 | 1998-02-10 | Virginia Tech Intellectual Property, Inc. | Method for reducing friction and wear of rubbing surfaces using anti-wear compounds in gaseous phase |
US5407601A (en) * | 1990-10-26 | 1995-04-18 | Center For Innovative Technology | Compositions for reducing wear on ceramic surfaces |
US5637558A (en) * | 1990-10-26 | 1997-06-10 | Virginia Tech Intellectual Properties, Inc. | Compositions for reducing wear on ceramic surfaces |
WO1992007923A1 (en) * | 1990-10-26 | 1992-05-14 | Virginia Polytechnic Institute And State University | Compositions for reducing wear on ceramic surfaces |
US5284492A (en) * | 1991-10-01 | 1994-02-08 | Nalco Fuel Tech | Enhanced lubricity fuel oil emulsions |
US5743922A (en) * | 1992-07-22 | 1998-04-28 | Nalco Fuel Tech | Enhanced lubricity diesel fuel emulsions for reduction of nitrogen oxides |
US5851964A (en) * | 1997-01-31 | 1998-12-22 | Virginia Tech Intellectual Properties, Inc. | Wear reduction using cyclic amide compounds |
US5880072A (en) * | 1998-01-14 | 1999-03-09 | Virginia Tech Intellectual Properties, Inc. | Wear reducing compositions and methods for their use |
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US20080139426A1 (en) * | 2006-12-11 | 2008-06-12 | Afton Chemical Corporation | Lubricating composition |
US8486873B2 (en) | 2010-03-31 | 2013-07-16 | Chevron Oronite Company Llc | Lubricating oil compositions containing epoxide antiwear agents |
US8859474B2 (en) | 2010-03-31 | 2014-10-14 | Chevron Oronite Company Llc | Lubricating oil compositions containing epoxide antiwear agents |
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