CA1161825A - Composition and method - Google Patents
Composition and methodInfo
- Publication number
- CA1161825A CA1161825A CA000385578A CA385578A CA1161825A CA 1161825 A CA1161825 A CA 1161825A CA 000385578 A CA000385578 A CA 000385578A CA 385578 A CA385578 A CA 385578A CA 1161825 A CA1161825 A CA 1161825A
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Abstract
ABSTRACT OF DISCLOSURE
Compositions comprising lubricating oil certain solid particles effective to improve the lubricating properties of the composition and ester components have improved anti-friction properties. The solid particles and ester components have a mutual activating effect to improve the anti-friction properties of the compositions. These compositions can be used to provide an improved method of lubrication.
Compositions comprising lubricating oil certain solid particles effective to improve the lubricating properties of the composition and ester components have improved anti-friction properties. The solid particles and ester components have a mutual activating effect to improve the anti-friction properties of the compositions. These compositions can be used to provide an improved method of lubrication.
Description
~ 82~?
This inve~tion relates to improved lubricants.
More particularly, it relates to compounded lu~ricating oils having improved anti-friction properties.
Lubricating oils have been used to lubricate components, such as engine part~, during use. Lubricating oils which have improved anti-friction properties are desirable ~ince, for example, use of such oils can result in reduced energy consumption.
Therefore, one of the objects of the present invention is to provide a lubricating composition having improved an~i-friction properties.
A further object of this invention is to provide an improved method of lubrication. Additional objects and advantages of the present invention will become apparent hereinafter.
Lubricating compositions have now been found which have improved anti-friction properties. These compositions comprise: a major amount by weight oi oil of lubricating viscosity; a minor amount by weight of solid particles effective to improve the lubricating properties of the composition; and at least one ester component selected from the group consisting of Rl ~ ~ R ~3 ~3 ~3 and mixtures thereof, wherein Rl is a monovalent hydrocarbon radical containiny about 6 to about 24 carbon atoms, preferably about 6 to about 21 carbon atoms, R2 is a monovalent hydrocarbon radical containing 1 to about 24 carbon atoms, preferably 1 to about 21 ~arbon ato~s, and each R3 is independently ~electea ron the group consisting of OH and O - C ~
~ R4, provided that at least one R3 is O - C \ wherein R4 1 3 6~825 ifi a monovalent hydrc)carbon radîcal containing 1 to about 24 carbon atoms, preferably about 1 to about 21 carbon atoms, ~he ester component being present in an amount ~ufficient to improve ~he antiwear proper~ies of the composition, the combinatio~ of the solid particles and ester component being present in mutually activating amount~ to improve the anti-friction properties of the composition.
The presence of both the solid particles and the ester component provides a lubricating oil composition having unexpectedly Lmproved anti-friction properties.
Moreover, the solid particles and ester component have been found to have a mutual acti~ating effect to improve the anti-friction properties of the lubricating compositions of the present invention.
The present compositions include a minor amount by weight of solid particles effective to improve the lubricating properties of the compositions. Preferably a major portion by weight, and more pxeferably substantially all, of such solid particles, have a maximum transverse dimension in the range of about 1 millimicron to about
This inve~tion relates to improved lubricants.
More particularly, it relates to compounded lu~ricating oils having improved anti-friction properties.
Lubricating oils have been used to lubricate components, such as engine part~, during use. Lubricating oils which have improved anti-friction properties are desirable ~ince, for example, use of such oils can result in reduced energy consumption.
Therefore, one of the objects of the present invention is to provide a lubricating composition having improved an~i-friction properties.
A further object of this invention is to provide an improved method of lubrication. Additional objects and advantages of the present invention will become apparent hereinafter.
Lubricating compositions have now been found which have improved anti-friction properties. These compositions comprise: a major amount by weight oi oil of lubricating viscosity; a minor amount by weight of solid particles effective to improve the lubricating properties of the composition; and at least one ester component selected from the group consisting of Rl ~ ~ R ~3 ~3 ~3 and mixtures thereof, wherein Rl is a monovalent hydrocarbon radical containiny about 6 to about 24 carbon atoms, preferably about 6 to about 21 carbon atoms, R2 is a monovalent hydrocarbon radical containing 1 to about 24 carbon atoms, preferably 1 to about 21 ~arbon ato~s, and each R3 is independently ~electea ron the group consisting of OH and O - C ~
~ R4, provided that at least one R3 is O - C \ wherein R4 1 3 6~825 ifi a monovalent hydrc)carbon radîcal containing 1 to about 24 carbon atoms, preferably about 1 to about 21 carbon atoms, ~he ester component being present in an amount ~ufficient to improve ~he antiwear proper~ies of the composition, the combinatio~ of the solid particles and ester component being present in mutually activating amount~ to improve the anti-friction properties of the composition.
The presence of both the solid particles and the ester component provides a lubricating oil composition having unexpectedly Lmproved anti-friction properties.
Moreover, the solid particles and ester component have been found to have a mutual acti~ating effect to improve the anti-friction properties of the lubricating compositions of the present invention.
The present compositions include a minor amount by weight of solid particles effective to improve the lubricating properties of the compositions. Preferably a major portion by weight, and more pxeferably substantially all, of such solid particles, have a maximum transverse dimension in the range of about 1 millimicron to about
2 microns, and most preferably in the range of about 1 millimicron to about 1 micron. Suitable solid particles for use in the present invention include those materials known to provide improved l~bricating properties to lubricating oil c~mpositions. Such solid particles include, for example, graphite, molybdenum disulfide, zinc oxide, tungsten disulfide, mical boron nitride, borax, silv~r sulfate, cadmium iodide, lead iodide, barium ~luoride~
tin sulfide, mixtures thereof and the like. The solid particles useful in the pxesent compositions axe pre~erably selectedfrom the group con~isting of ~raphiter molybdenum disul~ide, zinc oxide, and mixtures thereof; more preferably ~ 3 ~
from the group co~sisting of graphite, molybdenum disulfide and mixtures thareof; and most preferably, graphite.
The soli~ particles ar~ preferably present in the present compositi~ns in an amount of about 0.05~
to about 54, more preferably about 0O1% to about 3~, and still more preferably abou~ 0.1~ to about 2%, ~y weight of the to~al comp~sition. The ~olid particles co~po~ent of the present composition is preferably prepared as a c~lloidal suspension in, for example, a conventional lubricating oil and/or at least one conventional lubricating oil detergent. For example, such colloidal suspensions or concentrates may contain about 2% to about 25% or more, by weight of such ~olid particles.
The suitable ester components are present in the compositions of the present invention in an amount sufficient to improve the antiwear properties of the composition. Preferably, these ester components are present in an amount from about 0.1% to about 10% t more preferably from about 0.2% to about 5% and still more preferably from about 0.3% to about 3%, by weight of the total composition.
Typical examples of the monovalent hydrocarbon radicals represented by Rl, R2 and R4 which are suitable include alkyl such as me$hyl, ethyl, pr~pyl, octyl, decyl, lauryl, stearyl and the like radicals; alkenyl such as ethenyl, propenyl, butenyl, octenyl, decenyl, oleyl, linoleyl and the like radicals; aryl such as phenyl, naphthyl and the like radicals; alkaryl such as methyl phenyl, ethyl phenyl, propyl phenyl and the like radicals; aralkyl such as phenyl methyl, phenyl e~hyl, phenyl propyl and the like radical~. In aach instance, these radicals may include tho~e non-hydrocarbon ~ubstituents which do not materially inter~ere ~th or alter the antiwear improving properties of the ester component.
Illustrative of 60me applicable ester components are: degras, lanolin, sperm oil, beeswax, ester waxes, butyl stearate, ethyl lacta~e, me~hyl laurate, methyl oleate, oleyl oleate, methyl palmitate, butyl ricinoleate, methyl ~tearate, coconut oil, palm oil, babassu oil, hydrogenated linseed and ooconut ~ils and ~ther well known vegetable and fatty oils.
Among the ester components which have been found to be of particuiar usefulness in ~he present invention are those having the following structure R - C~
wherein Rl is selected from the group consisting of alkyl and alkenyl containing from aboul: 6 to about 21 carbon atoms and R2 is selected from the group consisting of alkyl and alkenyl containing from l to about 21 carbon atoms. Illustrative of this class of compounds include methyl la~rate, butyl laurate, methyl stearate, propenyl stearate, methyl oleate, butyl oleate, oleyl oleate and the like. Oleyl oleate has been found to be especially useful in the composition~ of the present invention.
The proportions given a~ove for both the solid particles and ester components apply to the total amount of each gr~up present in the composition regardless of how many members o~ each group of co~pounds or components are included.
Typical examples of the oils suitable for use in the pre~ent invention are those which are conventionally used as lubxicating oils. Although mineral oils are preferred, synthetic oils may be used. 5uitable oils 2 ~
include petroleum mineral oils, sush as refined by acid treatment, solvent extraction, hydrogenation and/or other procedures in order to achieve the desired oil ~uality.
Although oils of widely varying viscosities can be used in the products of the present ~nvention, i~ is preferred to use an oil with a viscosity of about 50 SUS to about 2500 S~S at 100F., more preferably about 80 SUS to about 2500 SUS at 100F. Combinations of two or more different oils in a single lubricating composition are within the scope of the present invention. ~he lubricating oil comprises a major proportion, preferably at least about 65%, more preferably at least about 80% by weight of the total composition.
The lubricating oil compositions contemplated herein may contain other agents, such as pour point depressants, anti-foam agents, oiliness agents, blooming agents, compounds for enhancing the viscosity index of the lubricating oil, peptizing agents, anti-oxidants and the like. All of these agents may be present in the compositions of the present invention in amounts sufficient to achieve their individual functions.
The pxesent lubricating compositions may be prepared in any conventional manner. For example, the ~arious components may be brought together and mixed at a slightly elevated temperature, e.g., from about 100F. to abou~ 130F., to insure a uniform composition.
The compositions of the present invention are useful in lubricating components which come into contact with other compon~nts under a wide variety of service conditions. Included among the use of these lubricating compositions are the following: en~ina oils~ in particular oil8 used to luhricate sealed electric motors; gear oils, metal working oils; hydraulic fluids, and in general, -- ~ 161~25 lubrica~ing serviCeS where it i~ ~esirabl~ to Use compounded oils having impr~ved anti-friction properties. In each of these instances, the improved c~mpositions are used by main~aining a lubricating amount of the ~omposition nt the point or p~int~ of contact requiring lubrication.
Thus, the compositi~ns of the present invention may be used in a method for lubricating ~ component which comes in contact with at least one other component with a lubricant compositions by main~aining a lu~ricating amount of the present compositions at the points of component-to-component contact requiring lubrication.
The following examples illustrate clearly the present invention. Howe~er, these illustrations are not to be interpreted as specific limitations on this invention.
EXAMPLES I to V
-The base oil choosen for testing is a commercially available, highly refined/.paraffinic lubricating oil which includes conventional additives, such as a rust inhibitor, a copper deactivator and a foam inhibitor.
Five (5) compositions were blended using the above noted compounded base oil. These compositions were as follows:
COMPOSITION
W~. %
I II III IV V
Base Oil 98 8g.75 97 97.9 88.75 Methacrylate Ester Copolymerll) 2 - 2 2 Pour Point Depressant - 0.25 - - 0.25 Organic Phosphate Ester - - 0.1 Graphite Dispersion~2) - 10 - - 10 Oleyl Oleate - - 1 - 1 (1~
~ conventional vi~co~ity index impxover used to increase the viscosity of cer~ain of the c~mposi~ions to a standard 200-220 SUS at 100F.
(2) A mineral oil-based di persion containing about 10% by weight of solid ~raphite particles which have an average (~y weight) particle size of about 200 -300 millimicrons. ~he dispersion also includes about 6% by weight ~oil free bases) of a nitrogen and methacrylate-containing dispersant to aid in maintaining dispersion stability. This dispersant -:
is believed to be derived from a methacrylic ester ~ontaining about 12 to 18 carbon atoms per molecule, The functional properties of the above oils were evaluated in a test apparatus designed by General Electric Company. The test apparatus involves a cylindrical steel electric motor shaft which is fitted into a self aligning ~n babbitt bearing material whi~h is mounted on leaf ~prings to which strain gauges are attachedO A
25 pound load is applied to the bearing by means of a lever arm. Starting torgue is measured through a s.train gauge amplifier on a ~trip chart which records the deflection when the shaft is turned by hand~ A low deflection on the strip chart indlca*es lo~ starting tor~ue or low breakaway friction.
Certain properties of the above noted compositions and the results of the friction~l test described above are as follows:
1 ~ 61~5 TESTS
I II III IV V
Gravity,API 32.8 31.8 32.7 32.8 31.7 Flash Point,~F. 415 405 410 405 420 Viscosity, S~S@100~F. 211 223 207 216 206.5 Viscosity,SUS@210F. 50.6 ~0 50.2 50.4 50.0 Viscosity Index 135 135 139 135 138 Pour Point,~F. -35 -20 -30 -35 -20 10 Oxidation Test,D2272 Rotary Bomb - Minutes to 25 PSI Pressure 750 558 (1) 800 306 780 Drop 525 Breakaway Friction 0.20 Test - Deflection - 0.25 0.19 0.15 0.15 As shown in Table 1, composition II consisting of the base oil plus 10~ graphite dispersion,gave deflections when tested in the above described apparatus of 0.20 to 0.25. Composition III,containing 1% oleyl oleate;gave a deflection of 0.19. Based on correlations bétween the above described frictional test and comm2rcial us~, both of these results were considered unsatisfactory.
C~mposition IV containing 0.10% organic phosphate ester gave a satisfactory deflection of 0.15,indicating low breakaway ~riction properties. ~owever, the phosphate ester adversely affected the oxidation life o the oil as indicated by ~he low XBOT oxidation life of 306 minutes.
Composition V,containing the combination of 10~ graphite dispersion and 1~ oleyl oleate gave a low 0.15 deflection ~n the fricatiQnal test apparatus, indicated low brea~away ~riction properties, and an acceptable RB~T life of 7$0 minutes. Th~. gr~phite and ~leyl oleate are mutually activating to improVe the breakaway ~riction pxopertia~ of the -B-:
~ 3 ~ 5 oil which was r~ot attainable with either the graphite or oleyl oleate alone.
While thi~ rention has been described with respect to ~arious ~pecific examples and em~odiments, it is to be understood that the invention i~; not limited thereto and that it can be variously practiced within the scope of the following claims:
tin sulfide, mixtures thereof and the like. The solid particles useful in the pxesent compositions axe pre~erably selectedfrom the group con~isting of ~raphiter molybdenum disul~ide, zinc oxide, and mixtures thereof; more preferably ~ 3 ~
from the group co~sisting of graphite, molybdenum disulfide and mixtures thareof; and most preferably, graphite.
The soli~ particles ar~ preferably present in the present compositi~ns in an amount of about 0.05~
to about 54, more preferably about 0O1% to about 3~, and still more preferably abou~ 0.1~ to about 2%, ~y weight of the to~al comp~sition. The ~olid particles co~po~ent of the present composition is preferably prepared as a c~lloidal suspension in, for example, a conventional lubricating oil and/or at least one conventional lubricating oil detergent. For example, such colloidal suspensions or concentrates may contain about 2% to about 25% or more, by weight of such ~olid particles.
The suitable ester components are present in the compositions of the present invention in an amount sufficient to improve the antiwear properties of the composition. Preferably, these ester components are present in an amount from about 0.1% to about 10% t more preferably from about 0.2% to about 5% and still more preferably from about 0.3% to about 3%, by weight of the total composition.
Typical examples of the monovalent hydrocarbon radicals represented by Rl, R2 and R4 which are suitable include alkyl such as me$hyl, ethyl, pr~pyl, octyl, decyl, lauryl, stearyl and the like radicals; alkenyl such as ethenyl, propenyl, butenyl, octenyl, decenyl, oleyl, linoleyl and the like radicals; aryl such as phenyl, naphthyl and the like radicals; alkaryl such as methyl phenyl, ethyl phenyl, propyl phenyl and the like radicals; aralkyl such as phenyl methyl, phenyl e~hyl, phenyl propyl and the like radical~. In aach instance, these radicals may include tho~e non-hydrocarbon ~ubstituents which do not materially inter~ere ~th or alter the antiwear improving properties of the ester component.
Illustrative of 60me applicable ester components are: degras, lanolin, sperm oil, beeswax, ester waxes, butyl stearate, ethyl lacta~e, me~hyl laurate, methyl oleate, oleyl oleate, methyl palmitate, butyl ricinoleate, methyl ~tearate, coconut oil, palm oil, babassu oil, hydrogenated linseed and ooconut ~ils and ~ther well known vegetable and fatty oils.
Among the ester components which have been found to be of particuiar usefulness in ~he present invention are those having the following structure R - C~
wherein Rl is selected from the group consisting of alkyl and alkenyl containing from aboul: 6 to about 21 carbon atoms and R2 is selected from the group consisting of alkyl and alkenyl containing from l to about 21 carbon atoms. Illustrative of this class of compounds include methyl la~rate, butyl laurate, methyl stearate, propenyl stearate, methyl oleate, butyl oleate, oleyl oleate and the like. Oleyl oleate has been found to be especially useful in the composition~ of the present invention.
The proportions given a~ove for both the solid particles and ester components apply to the total amount of each gr~up present in the composition regardless of how many members o~ each group of co~pounds or components are included.
Typical examples of the oils suitable for use in the pre~ent invention are those which are conventionally used as lubxicating oils. Although mineral oils are preferred, synthetic oils may be used. 5uitable oils 2 ~
include petroleum mineral oils, sush as refined by acid treatment, solvent extraction, hydrogenation and/or other procedures in order to achieve the desired oil ~uality.
Although oils of widely varying viscosities can be used in the products of the present ~nvention, i~ is preferred to use an oil with a viscosity of about 50 SUS to about 2500 S~S at 100F., more preferably about 80 SUS to about 2500 SUS at 100F. Combinations of two or more different oils in a single lubricating composition are within the scope of the present invention. ~he lubricating oil comprises a major proportion, preferably at least about 65%, more preferably at least about 80% by weight of the total composition.
The lubricating oil compositions contemplated herein may contain other agents, such as pour point depressants, anti-foam agents, oiliness agents, blooming agents, compounds for enhancing the viscosity index of the lubricating oil, peptizing agents, anti-oxidants and the like. All of these agents may be present in the compositions of the present invention in amounts sufficient to achieve their individual functions.
The pxesent lubricating compositions may be prepared in any conventional manner. For example, the ~arious components may be brought together and mixed at a slightly elevated temperature, e.g., from about 100F. to abou~ 130F., to insure a uniform composition.
The compositions of the present invention are useful in lubricating components which come into contact with other compon~nts under a wide variety of service conditions. Included among the use of these lubricating compositions are the following: en~ina oils~ in particular oil8 used to luhricate sealed electric motors; gear oils, metal working oils; hydraulic fluids, and in general, -- ~ 161~25 lubrica~ing serviCeS where it i~ ~esirabl~ to Use compounded oils having impr~ved anti-friction properties. In each of these instances, the improved c~mpositions are used by main~aining a lubricating amount of the ~omposition nt the point or p~int~ of contact requiring lubrication.
Thus, the compositi~ns of the present invention may be used in a method for lubricating ~ component which comes in contact with at least one other component with a lubricant compositions by main~aining a lu~ricating amount of the present compositions at the points of component-to-component contact requiring lubrication.
The following examples illustrate clearly the present invention. Howe~er, these illustrations are not to be interpreted as specific limitations on this invention.
EXAMPLES I to V
-The base oil choosen for testing is a commercially available, highly refined/.paraffinic lubricating oil which includes conventional additives, such as a rust inhibitor, a copper deactivator and a foam inhibitor.
Five (5) compositions were blended using the above noted compounded base oil. These compositions were as follows:
COMPOSITION
W~. %
I II III IV V
Base Oil 98 8g.75 97 97.9 88.75 Methacrylate Ester Copolymerll) 2 - 2 2 Pour Point Depressant - 0.25 - - 0.25 Organic Phosphate Ester - - 0.1 Graphite Dispersion~2) - 10 - - 10 Oleyl Oleate - - 1 - 1 (1~
~ conventional vi~co~ity index impxover used to increase the viscosity of cer~ain of the c~mposi~ions to a standard 200-220 SUS at 100F.
(2) A mineral oil-based di persion containing about 10% by weight of solid ~raphite particles which have an average (~y weight) particle size of about 200 -300 millimicrons. ~he dispersion also includes about 6% by weight ~oil free bases) of a nitrogen and methacrylate-containing dispersant to aid in maintaining dispersion stability. This dispersant -:
is believed to be derived from a methacrylic ester ~ontaining about 12 to 18 carbon atoms per molecule, The functional properties of the above oils were evaluated in a test apparatus designed by General Electric Company. The test apparatus involves a cylindrical steel electric motor shaft which is fitted into a self aligning ~n babbitt bearing material whi~h is mounted on leaf ~prings to which strain gauges are attachedO A
25 pound load is applied to the bearing by means of a lever arm. Starting torgue is measured through a s.train gauge amplifier on a ~trip chart which records the deflection when the shaft is turned by hand~ A low deflection on the strip chart indlca*es lo~ starting tor~ue or low breakaway friction.
Certain properties of the above noted compositions and the results of the friction~l test described above are as follows:
1 ~ 61~5 TESTS
I II III IV V
Gravity,API 32.8 31.8 32.7 32.8 31.7 Flash Point,~F. 415 405 410 405 420 Viscosity, S~S@100~F. 211 223 207 216 206.5 Viscosity,SUS@210F. 50.6 ~0 50.2 50.4 50.0 Viscosity Index 135 135 139 135 138 Pour Point,~F. -35 -20 -30 -35 -20 10 Oxidation Test,D2272 Rotary Bomb - Minutes to 25 PSI Pressure 750 558 (1) 800 306 780 Drop 525 Breakaway Friction 0.20 Test - Deflection - 0.25 0.19 0.15 0.15 As shown in Table 1, composition II consisting of the base oil plus 10~ graphite dispersion,gave deflections when tested in the above described apparatus of 0.20 to 0.25. Composition III,containing 1% oleyl oleate;gave a deflection of 0.19. Based on correlations bétween the above described frictional test and comm2rcial us~, both of these results were considered unsatisfactory.
C~mposition IV containing 0.10% organic phosphate ester gave a satisfactory deflection of 0.15,indicating low breakaway ~riction properties. ~owever, the phosphate ester adversely affected the oxidation life o the oil as indicated by ~he low XBOT oxidation life of 306 minutes.
Composition V,containing the combination of 10~ graphite dispersion and 1~ oleyl oleate gave a low 0.15 deflection ~n the fricatiQnal test apparatus, indicated low brea~away ~riction properties, and an acceptable RB~T life of 7$0 minutes. Th~. gr~phite and ~leyl oleate are mutually activating to improVe the breakaway ~riction pxopertia~ of the -B-:
~ 3 ~ 5 oil which was r~ot attainable with either the graphite or oleyl oleate alone.
While thi~ rention has been described with respect to ~arious ~pecific examples and em~odiments, it is to be understood that the invention i~; not limited thereto and that it can be variously practiced within the scope of the following claims:
Claims (15)
1. A composition comprising a major proportion by weight of oil of lubricating viscosity; a minor amount by weight of solid particles effective to improve the lubricating properties of said composition and at least one ester component selected from the group consisting of:
and and mixtures thereof wherein R1 is a monovalent hydrocarbon radical containing about 6 to about 24 carbon atoms, --R2 is a monovalent hydrocarbon radical containing 1 to about 24 carbon atoms, and each -R3 is independently selected from the group consisting of -OH and , provided that at least one -R3 is wherein -R4 is a monovalent hydrocarbon radical containing 1 to about 24 carbon atoms, said ester component being present in a minor amount effective to improve the antiwear properties of said composition, the combination of said solid particles and ester component being present in mutually activating amounts to improve the anti-friction properties of said composition.
and and mixtures thereof wherein R1 is a monovalent hydrocarbon radical containing about 6 to about 24 carbon atoms, --R2 is a monovalent hydrocarbon radical containing 1 to about 24 carbon atoms, and each -R3 is independently selected from the group consisting of -OH and , provided that at least one -R3 is wherein -R4 is a monovalent hydrocarbon radical containing 1 to about 24 carbon atoms, said ester component being present in a minor amount effective to improve the antiwear properties of said composition, the combination of said solid particles and ester component being present in mutually activating amounts to improve the anti-friction properties of said composition.
2. The composition of claim 1 wherein said solid particles are present in an amount from about 0.05%
to about 5% by weight of the total composition and said ester component is present in an amount from about 0.1%
to about 10% by weight of the total composition,
to about 5% by weight of the total composition and said ester component is present in an amount from about 0.1%
to about 10% by weight of the total composition,
3. The composition of claim 2 wherein said solid particles are selected from the group consisting of graphite, molybdenum disulfide, zinc oxide and mixtures thereof and -R2 contains from 1 to about 21 carbon atoms.
4. The composition of claim 2 wherein said ester component is
5. The composition of claim 4 wherein said solid particles are graphite particles and R1 contains from about 6 to about 21 carbon atoms and R2 contains from 1 to about 21 carbon atoms.
6. The composition of claim 4 wherein -R1 and -R2 are alkenyl.
7. The composition of claim 6 wherein said ester component is oleyl oleate.
8. The composition of claim 3 wherein said solid particles are present in an amount from about .1%
to about 3% by weight of the total composition and said ester component is present in an amount from about 0.2%
to about 5% by weight of the total composition.
to about 3% by weight of the total composition and said ester component is present in an amount from about 0.2%
to about 5% by weight of the total composition.
9. The composition of claim 6 wherein said solid particles are present in an amount from about 0.1% to about 3% by weight of the total composition and said ester component is present in an amount from about 0.2% to about 5% by weight of the total composition.
10. The composition of claim 7 wherein said solid particles are present in an amount from about 0.1%
to about 3% by weight of the total composition and said ester component is present in an amount from about 0.2%
to about 5% by weight of the total composition.
to about 3% by weight of the total composition and said ester component is present in an amount from about 0.2%
to about 5% by weight of the total composition.
11. The composition of claim 10 wherein said solid particles are present in an amount from about 0.1%
to about 3% by weight of the total composition and said ester component is present in an amount from about 0.3%
to about 3% by weight of the total composition
to about 3% by weight of the total composition and said ester component is present in an amount from about 0.3%
to about 3% by weight of the total composition
12. In a method fox lubricating a component which comes in contact with at least one other component with a lubricant composition, the Improvement which comprises maintaining a lubricating amount of the composition of claim 1 at the points of said contact requiring lubrication.
13. In a method for lubricating a component which comes in contact with at least one other component with a lubricant composition, the improvement which comprises maintaining a lubricating amount of the composition of claim 3 at the points of aid contact requiring lubrication.
14. In a method for lubricating a component which comes in contact with at least one other component with a lubricant composition, the improvement which comprises maintaining a lubricating amount of the composition of claim 7 at the points of said contact requiring lubrication.
15. In a method for lubricating a component which comes in contact with at least one other component with a lubricant composition, the improvement which comprises maintaining a lubricating amount of the composition of claim 11 at the points of said contact requiring lubrication.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19849780A | 1980-10-20 | 1980-10-20 | |
| US198,497 | 1980-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1161825A true CA1161825A (en) | 1984-02-07 |
Family
ID=22733620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000385578A Expired CA1161825A (en) | 1980-10-20 | 1981-09-10 | Composition and method |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1161825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2314341A (en) * | 1996-05-21 | 1997-12-24 | John Richard Drewe | Multiphase mixture for use in fluid dynamics |
-
1981
- 1981-09-10 CA CA000385578A patent/CA1161825A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2314341A (en) * | 1996-05-21 | 1997-12-24 | John Richard Drewe | Multiphase mixture for use in fluid dynamics |
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Effective date: 20010207 |