Method of operating a hybrid engine

The invention relates to a method of operating a hybrid internal combustion engine, which method comprises: fuelling said hybrid internal combustion engine with a combustible fuel; lubricating said engine with an engine oil composition; and maintaining an oil film thickness of the engine oil composition in the big end conrod bearing shells of the engine of at least 0.4 μm; in which the temperature of the engine oil composition is maintained below 123° C. and the engine oil composition has: a high temperature, high shear viscosity of less than 2.6 cP (2.6 millipascal second) at 150° C. and at a shear rate of 10 6 s −1 ; a Noack volatility of at most 13 weight %; and comprises: (A) a base oil which is at least one synthetic basestock, the base oil having a kinematic viscosity of at least 2.0 cSt (2.0 mm2/s) at 100 ° C.; and (B) an additive package which comprises at least one dispersant, at least one detergent, and at least one phosphorus-containing, anti-wear additive in an amount to provide a total concentration of phosphorus-containing, anti-wear additives in the engine oil composition corresponding to 0.01 to 0.2 weight % phosphorus in the engine oil composition.

Application-specific finished lubricant compositions comprising a bio-derived ester component and methods of making same

The present invention is generally directed to methods of making application-specific finished lubricant compositions comprising bio-derived diester species. In some embodiments, bio-derived fatty acid moieties are reacted with Fischer-Tropsch/gas-to-liquids reaction products and/or by-products (e.g., gas-to-liquids-produced α-olefins) to yield bio-derived diester species that can then be selectively blended with base oil and one or more additive species to yield an application-specific finished lubricant product having a biomass-derived component.

High Viscosity Lubricant Compositions Meeting Low Temperature Performance Requirements

A lubricant composition characterized as having a viscosity of less than about 150,000 cP at −40° C., a kinematic viscosity of less than about 150,000 cSt at −40° C., and a kinematic viscosity of at least about 18.5 cSt at 100° C. for use in association with a device involving metal to metal contact of moving parts comprising: (a) base-stock comprising (i) at least one relatively low viscosity polyalphaolefin, (ii) at least one ester, and at least one Group III base oil; (b) viscosity improver comprising (i) at least one relatively high viscosity polyalphaolefin, and (ii) a least one olefin copolymer; (c) a performance additive comprising at least one additive effective to improve at least one property of the lubricant and/or the performance of the equipment in which the lubricant is to be used; (d) at least one pour-point depressant; and, optionally, (e) at least one antifoam agent.

Thickener, grease, method for producing the same,and grease-packed bearing

The present invention provides a thickener which allows grease having an excellent durability in a high-temperature and high-speed condition to be produced, the grease containing the thickener, a method of producing the thickener and the grease, and a grease-packed bearing. A grease ( 7 ) to be packed in a bearing ( 1 ) is obtained by adding a thickener for a grease comprising a compound shown by a chemical formula (1) shown below or a compound shown by a chemical formula (2) shown below; In the chemical formula (1) or the chemical formula (2), R 1 shows a diamine residue or a diisocyanate residue; R 2 shows a residue of a dicarboxylic acid in which two adjacent carbon atoms form an imide ring or residues of derivative of the dicarboxylic acid; R 3 shows a tetracarboxylic acid residue or residues of derivatives of the tetracarboxylic acid; R 4 shows a hydrogen atom residue, a monoamine residue or a monoisocyanate residue; and n indicates integers of 0 through 5.

Lubricating Compositions Containing Polyalkylene Glycol Mono Ethers

Provided are lubricating compositions comprising in admixture at least 40 wt % of a base stock selected from the group consisting of Group I, Group II, Group III, Group IV and Group V base stocks, or any combination thereof, one or more polyalkylene glycol mono ethers, and at least one additive. Also provided are methods of improving the friction and wear properties of a base stock selected from the group consisting of Group I, Group II, Group III, Group IV and Group V base stocks, or any combination thereof, comprising blending the base stock with one or more polyalkylene glycol mono ethers and at least one additive, to form a lubricating composition.

Microencapsulated engine lubricant additives

An engine lubricating system for an internal combustion engine. The system comprises a vehicle engine; a circulation system for providing a continuing flow of lubricant to the vehicle engine and engine components; and a lubricant disposed within the circulation system. The lubricant comprises a base oil and at least one microencapsulated oil additive. The microencapsulated oil additive is selectively released into the lubricant based one or more localized event. The localized event may include a predetermined temperature change, a predetermined pH change, a localized high friction contact, and combinations thereof.

LUBRICATING OIL COMPOSITION, METHOD FOR PRODUCING LUBRICATING OIL COMPOSITION, AND CONTINUOUSLY VARIABLE TRANSMISSION

To provide a lubricating oil composition achieving both of high traction coefficient and excellent low temperature fluidity at a higher level and having a high flash point, which contains a naphthene-based synthetic oil (A) having a flash point of 140° C. or higher, a longifolene (B), and a predetermined monoester-based synthetic oil (C), a method for producing the lubricating oil composition, and a continuously variable transmission using the lubricating oil composition. 2: The lubricating oil composition according to claim 1 , wherein the naphthene-based synthetic oil (A) is a synthetic oil having at least one ring selected from a cyclohexane ring claim 1 , a bicycloheptane ring claim 1 , and a bicyclooctane ring.3: The lubricating oil composition according to claim 1 , wherein the naphthene-based synthetic oil (A) is a synthetic oil represented by the following general formula (2):{'br': None, 'sup': 21', '22', '23, 'sub': p', {'sub2': '21'}, '21', '22', 'p', {'sub2': '22'}], 'R—X—R—X—R\u2003\u2003(2)'}{'sup': 21', '23', '22, 'sub': 21', '22', '21', '22, 'wherein Rand Reach independently represent a hydrocarbon group, Rrepresents a hydrocarbon group, Xand Xeach independently represent a cyclohexane ring, a bicycloheptane ring, or a bicyclooctane ring, and pand peach independently represent an integer of 1 or more and 6 or less.'}4: The lubricating oil composition according to claim 3 , wherein in the general formula (2) claim 3 , Xand Xare each independently a cyclohexane ring claim 3 , a bicyclo[2.2.1]heptane ring claim 3 , a bicyclo[3.2.1]octane ring claim 3 , or a bicyclo[2.2.2]octane ring.5: The lubricating oil composition according to claim 3 , wherein in the general formula (2) claim 3 , Rand Reach independently represent an alkyl group or an alkenyl group claim 3 , and Rrepresents an alkylene group or an alkenylene group.6: The lubricating oil composition according to claim 3 , wherein in the general formula (2) claim 3 , Rand Reach independently represent ...

Lubricating oil base oil, lubricating oil composition containing same, and continuously variable transmission using said lubricating oil composition

Provided are: a lubricant base oil capable of achieving both a high traction coefficient and an excellent low-temperature fluidity at a higher level and having a high flash point, which contains a ring-containing compound having at least (i) a crosslinked bicyclic ring where two rings are bonded while sharing 3 or more carbon atoms, and (ii) an acyloxy group or a hydrocarbyloxycarbonyl group each containing a branched hydrocarbon group with a main chain having 4 or more carbon atoms, a lubricating oil composition containing the lubricant base oil, and a continuously variable transmission using the lubricating oil composition.

Grease wear resistance

Grease wear test device includes a body in a form of a collar having an outer surface, a first side and an opposing second side, which are open to form a hollow, open channel through the body, which has a center axis, into which opposing vee blocks can be inserted; and perpendicular to the center axis, a pair of opposing holes through and open to the outer surface of the body and the cylindrical inside wall, through which a cylindrical test journal (falex pin) can be inserted for contact in general with opposing vee-shaped channels of the inserted, opposing vee blocks, and for rotation during testing. The device can be used to modify a falex pin and vee block device, to receive and contain a small sample of grease or another organic paste product for testing such as a modified version of an ASTM D2670 test method for measuring wear properties of fluid lubricants (falex pin and vee block method). 1. A method for evaluating wear resistance and its effects on a grease or another organic paste product , which comprises carrying out the following steps , which are not necessarily conducted in series: a body in a form of a collar having an outer surface, a first side and an opposing second side;', 'the first and second sides being open so as to form a hollow, open channel through the body having a center axis, into which opposing vee blocks can be inserted; and', 'perpendicular to the center axis, a pair of opposing holes through and open to the outer surface of the body and the cylindrical inside wall, through which a cylindrical test journal (falex pin) can be inserted for contact in general with opposing vee-shaped channels of the inserted, opposing vee blocks, and for rotation during testing—, 'providing a modified falex pin and vee block device so as to further include a grease wear test device, the grease wear test device includingwherein the modified falex pin and vee block device can receive and contain a small sample of grease or another organic paste product ...

Lubricant composition promoting sustained fuel economy

A lubricant composition includes a controlled release friction modifier (CRFM), a highly paraffinic base stock, a dispersant and a detergent. The CRFM includes an ionic tetrahedral borate compound including a cation and a tetrahedral borate anion, wherein the tetrahedral borate anion comprises a boron atom having two bidentate di-oxo ligands of C18 tartrimide. The lubricant composition can also include at least one of a Group V co-base stock, an inorganic friction modifier, a viscosity modifier, and a cleanliness booster.

Lubricant for preventing and removing carbon deposits in internal combustion engines

A lubricant formulation which is effective to remove or prevent carbon deposits in internal combustion engines has a solvency as defined by aniline point from about 20 to about 115, a volatility (as measured by NOACK) of less than 15%, an oxidative stability (as measured by PDSC) of above 40 minutes and a base oil viscosity of above 2 and below 10 cSt. The lubricant formulation can be formed from a blend of Group III, IV and V lubricants, in particularly polyalphaolefins, alkylated naphthalenes and polar Group V base stocks such as polyol esters. The carbon deposits can be removed from the engine piston by simply running the engine with the lubricant for one required cycle, or can be used continuously in the engine to prevent buildup.

LUBRICATING OIL COMPOSITION

Disclosed is a lubricating oil composition comprising: a lubricating base oil comprising 0.5% to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and having a kinematic viscosity at 40° C. of 18 to 28 mm/s; and an organic molybdenum compound in an amount of 100 to 1000 mass ppm in terms of the molybdenum element based on the total amount of the lubricating oil composition, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of 50 mm/s or less. 14-. (canceled)5. A lubricating oil composition comprising:{'sup': '2', 'a lubricating base oil comprising 1% to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and said lubricating base oil having a kinematic viscosity at 40° C. of 22 to 26 mm/s; wherein the amount of the lubricating base oil is 67.5% by mass or more; and'}molybdenum dithiocarbamate in an amount of 100 to 1000 mass ppm in terms of molybdenum element based on the total amount of the lubricating oil composition, wherein{'sup': '2', 'the lubricating oil composition has a kinematic viscosity at 40° C. of 10 of 50 mm/s or less,'}the lubricating oil composition further comprising 2.5% to 24% by mass of a copolymer of an α-olefin and an α,β-ethylenically unsaturated dicarboxylic acid diester, based on the total amount of the lubricating oil composition, wherein the weight-average molecular weight of the copolymer is 6000 to 15000,the lubricating oil further comprising a boron-containing dispersant in an amount of 100 to 500 mass ppm in terms of boron element based on the total amount of the lubricating oil composition,wherein the lubricating oil composition is free of styrene-maleic anhydride ester.6. The lubricating oil composition according to claim 5 , wherein the lubricating base oil comprises a synthetic base oil comprising a poly-α-olefin.7. A method of lubricating a hypoid gear comprising utilizing the lubricating oil composition of . The present invention ...

REFRIGERANT COMPRESSOR AND FREEZING APPARATUS USING SAME

Refrigerant compressor includes electromotive element, and compression element that is driven by electromotive element, includes a slider, and compresses a refrigerant. Freezer oil that lubricates the slider is added with fullerene having a diameter that ranges from 100 pm to 10 nm. 1. A refrigerant compressor comprising:an electromotive element; anda compression element that is driven by the electromotive element, includes a slider, and compresses a refrigerant,wherein a freezer oil that lubricates the slider is added with a fullerene having a diameter that ranges from 100 pm to 10 nm.2. The refrigerant compressor according to claim 1 , wherein one of a C60 fullerene, a C70 fullerene, and a higher-order fullerene including a larger number of carbons than a number of carbons of the C70 fullerene; or', 'a mixed fullerene obtained by mixing at least two of the C60 fullerene, the C70 fullerene, and the higher-order fullerene., 'the fullerene is3. The refrigerant compressor according to claim 1 , wherein a shape of the fullerene is spherical or elliptic.4. The refrigerant compressor according to claim 1 , wherein an additive amount of the fullerene is less than or equal to a saturating amount of dissolution with respect to the freezer oil.5. The refrigerant compressor according to claim 1 , whereinthe refrigerant compressed by the compression element is a hydrofluorocarbon (HFC) refrigerant or a mixed refrigerant including the HFC refrigerant, and one of ester oil, alkylbenzene oil, polyvinyl ether, and polyalkylene glycol; or', 'mixed oil of at least two of the ester oil, the alkylbenzene oil, the polyvinyl ether, and the polyalkylene glycol., 'the freezer oil is6. The refrigerant compressor according to claim 1 , wherein one natural refrigerant of R600a, R290, and R744; or', 'a mixed refrigerant that includes at least one of the R600a, the R290, and the R744, and, 'the refrigerant compressed by the compression element is one of mineral oil, ester oil, alkylbenzene oil ...

Lubricating oil composition

A lubricating oil composition of the invention contains a first base oil having a kinematic viscosity at 100 degrees C. in a range from 0.6 mm 2 /s to 3.5 mm 2 /s and a first poly(meth)acrylate having a mass average molecular weight in a range from 3×10 4 to 5×10 4 .

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. A composition for a heat cycle system, which comprises a working fluid for heat cycle containing trifluoroethylene, and a stabilizer for preventing deterioration of the working fluid for heat cycle, such as an oxidation resistance-improving agent, a heat resistance-improving agent or a metal deactivator, and a heat cycle system employing the composition for a heat cycle system. 1. A composition for a heat cycle system , comprising:a working fluid for heat cycle comprising trifluoroethylene and a hydrofluoroolefin other than trifluoroethylene; anda stabilizer for preventing deterioration of the working fluid for heat cycle.2. The composition for a heat cycle system according to claim 1 , wherein the stabilizer is at least one stabilizer selected from an oxidation resistance-improving agent claim 1 , a heat resistance-improving agent and a metal deactivator.3. The composition for a heat cycle system according to claim 2 , wherein the stabilizer is at least one compound selected from the group consisting of a phenol compound claim 2 , an unsaturated hydrocarbon group-containing aromatic compound claim 2 , an aromatic amine compound claim 2 , an aromatic thiazine compound claim 2 , a terpene compound claim 2 , a quinone compound claim 2 , a nitro compound claim 2 , an epoxy compound claim 2 , a lactone compound claim 2 , an orthoester compound claim 2 , a mono- or di-alkali metal salt compound of phthalic acid claim 2 , and a thiodiphenyl ether hydroxide compound.4. The composition for a heat cycle system according to claim 1 , wherein a content of the stabilizer in the composition is at least 1 mass ppm.5. The composition for a heat cycle system according to claim 1 , further comprising a refrigerant oil.6. The composition for a heat ...

GREASE BASE OIL AND GREASE COMPOSITION CONTAINING SAID GREASE BASE OIL

A grease base oil, containing: condensation esters of alcohols (A) and carboxylic acids (B), wherein the alcohols (A) include a polyhydric alcohol represented by General Formula (1), the carboxylic acids (B) include a fatty acid having 5 to 9 carbon atoms (B-1), a branched fatty acid having 15 to 20 carbon atoms (B-2), a cycloalkane monocarboxylic acid having 4 to 8 carbon atoms (B-3), and an aromatic carboxylic acid (B-4), and the carboxylic acids (B) have a percentage of (B-1) above of 30 mol % to 50 mol %, a percentage of (B-2) above of 30 mol % to 50 mol %, a percentage of (B-3) above of 10 mol % to 30 mol %, and a percentage of (B-4) above of 1 mol % to 15 mol %. The grease base oil contains condensation esters having heat resistance and low temperature storageability.

Refrigeration apparatus

A refrigeration apparatus includes a heat source unit, a utilization unit, and a liquid refrigerant pipe and gas refrigerant pipe. The utilization unit has utilization unit internal pipelines. The liquid refrigerant pipe and the gas refrigerant pipe connect the heat source unit and the utilization unit internal pipelines. A refrigerant circulates through the heat source unit, the utilization unit, the liquid refrigerant pipe, and the gas refrigerant pipe. The refrigerant contains a compound represented by a molecular formula having one or more carbon-carbon unsaturated bonds. A disproportionation inhibitor for reducing a disproportionation reaction of the refrigerant is applied to at least a part of inner surfaces of the liquid refrigerant pipe, the gas refrigerant pipe, and the utilization unit internal pipelines.

GEAR LUBRICANT COMPOSITION

The present application relates to a gear lubricant composition comprising: 97 to 99.9 wt.-% trimethylolpropane triester; and 0.1 to 3 wt.-% at least one additive selected from among anti-wear additives, extreme pressure additives, antioxidants, anti-corrosion additives, metal deactivator additives, antifoams, and mixtures thereof. 1. Method of lubricating gearing or equipment comprising gearing , in particular the stem tube comprising the lubrication of the parts in contact with a lubricant composition comprising:97 to 99.9% by weight of a trimethylolpropane triester; and0.1 to 3% by weight of at least one additive chosen from among anti-wear additives, extreme pressure additives, antioxidants, anticorrosive additives, metal deactivator additives, defoamers, and mixtures thereof.2. Method according to claim 1 , wherein the trimethylolpropane triester is a linear or branched C14-C20 saturated or unsaturated fatty acid or saturated fatty acid ester claim 1 , preferably C16-C20 claim 1 , for example C18.3. Method according to claim 1 , wherein the trimethylolpropane triester is a branched C14-C20 saturated fatty acid ester claim 1 , preferably C16-C20 claim 1 , for example C18.4. Method according to claim 3 , wherein the trimethylolpropane triester is trimethylolpropane isostearate.5. Method according to claim 1 , wherein the composition comprises:0.1 to 1% by weight of an anti-wear additive phosphate of amine; and0.1 to 1% by weight of a phenolic antioxidant additive.6. Method according to wherein the amine phosphate is selected from amine alkyl phosphate.7. Method according to claim 1 , wherein the equipment comprising gearing is the stem tube.8. (canceled) The present invention relates to gear lubricant compositions. Said compositions according to the invention are biodegradable, do not bioaccumulate in organisms and do not represent toxicity to the environment, especially the aquatic environment.Since December 2013, US regulations have been amended to require all ...

AQUEOUS ACIDIC COMPOSITION FOR TREATING METAL SURFACES, TREATING METHOD USING THIS COMPOSITION AND USE OF TREATED METAL SURFACE

An aqueous acidic composition for treating metal surfaces, the composition including the following components: 1. An aqueous acidic composition for treating metal surfaces , said composition comprising the following components:a) at least one water soluble or water dispersable anionic polyelectrolyte;b) at least one organofunctional silane comprising one or more reactive functional groups selected from the group comprising amino, mercapto, methacryloxy, epoxy and vinyl;c) at least one water dispersible solid wax;wherein the weight ratio between components a:b is in the range of 1:2-4:1, based on dry matter;the weight ratio between components (a+b):c is in the range of 1:3-3:1, based on dry matter, and wherein components a and b may be present—at least partially—as their graft reaction product,wherein the at least one anionic polyelectrolyte has an acid value of at least 250.2. The aqueous acidic composition according to claim 1 , wherein the at least one anionic polyelectrolyte has an acid value of at least 400 mg KOH/g.3. The aqueous acidic composition according to claim 2 , wherein the at least one anionic polyelectrolyte has an acid value of at least 600 mg KOH/g.4. The aqueous acidic composition according to claim 2 , wherein the at least one anionic polyelectrolyte has an acid value of at least 700 mg KOH/g.5. The aqueous acidic composition according to claim 1 , wherein the at least one anionic polyelectrolyte is present in an amount of 0.6-40 g/L.6. The aqueous acidic composition according to claim 5 , wherein the at least one anionic polyelectrolyte is present in an amount of 1.6-20 g/L.7. The aqueous acidic composition according to claim 1 , wherein the at least one organofunctional silane is present in an amount of 0.3-40 g/L.8. The aqueous acidic composition according to claim 7 , wherein the at least one organofunctional silane is present in an amount of 0.8-20 g/L.9. The aqueous acidic composition according to claim 1 , wherein the at least one water ...

Utilization of transgenic high oleic soybean oil in industrial applications

Oil compositions derived from transgenic soybeans having a high concentration of oleic acid are described for use in various applications including use to enhance the low temperature pour characteristics of engine fluids. Such oil compositions are useful as lubricants, rail curve grease and engine penetrants.

SYNTHETIC ESTERS DERIVED FROM HIGH STABILITY OLEIC ACID

The present invention is directed to a composition comprising a synthetic ester having a fatty acid mixture including: oleic acid in amount of at least about 85 wt % of the fatty acid mixture; linoleic acid in an amount of about 3 wt % of the fatty acid mixture or less; and linolenic acid in an amount of about 0.5 wt % of the fatty acid mixture or less. 114.-. (canceled)15. A method of preparing a synthetic ester , the method comprising reacting a fatty acid mixture with an alcohol , wherein the fatty acid mixture comprises:a. oleic acid in amount of at least about 85 wt % of the fatty acid mixture;b. linoleic acid in an amount of about 3 wt % of the fatty acid mixture or less; andc. linolenic acid in an amount of about 0.5 wt % of the fatty acid mixture or less.16. The method of claim 15 , wherein the oleic acid is a high stability oleic acid.17. The method of claim 15 , wherein the alcohol is selected from the group consisting of: trimethylol propane (TMP) claim 15 , neopentyl glycol (NPG) claim 15 , pentaerythritol (PE) claim 15 , 2-butyl-2-ethyl-1 claim 15 ,3-propanediol (BEPD) claim 15 , 2 claim 15 ,2 claim 15 ,4-trimethyl-1 claim 15 ,3-propanediol (TMPD) claim 15 , polyglycerol claim 15 , 2 claim 15 ,2-diethyl-1 claim 15 ,3-propanediol claim 15 , 1 claim 15 ,3 claim 15 ,-propanediol claim 15 , 1 claim 15 ,2-propanediol claim 15 , 1 claim 15 ,4-butanediol claim 15 , 1 claim 15 ,4-butenediol claim 15 , 1 claim 15 ,4-butynediol claim 15 , 1 claim 15 ,6-hexanediol claim 15 , 1 claim 15 ,2-cyclohexanediol claim 15 , 1 claim 15 ,4-cyclohexanediol claim 15 , 1 claim 15 ,2- claim 15 , 1 claim 15 ,3- claim 15 , 1 claim 15 ,4- claim 15 , 1 claim 15 ,8- claim 15 , 2 claim 15 ,4- claim 15 , 2 claim 15 ,7- claim 15 , and 4 claim 15 ,5-octanediol claim 15 , tricyclodecane dimethanol (TCD) claim 15 , 1 claim 15 ,4-cyclohexanedimethanol claim 15 , 1 claim 15 ,12-dodecanediol claim 15 , 2-methyl-2 claim 15 ,4-pentanediol claim 15 , 2-methyl-1 claim 15 ,3-propanediol (MPD) ...

Ashless engine lubricants for high temperature applications

An ashless lubricating oil having a lubricating oil base stock as a major component, and a mixture of (i) at least one ashless antiwear additive, (ii) at least one ashless detergent, and (iii) at least one aminic antioxidant, as minor components. The lubricating oil base stock is a branched polyol ester. The lubricating oil base stock is present in an amount from about 30 to about 99.8 mass percent, based on the total mass of the ashless lubricating oil. A method for improving oxidative stability and high temperature stability of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the ashless lubricating oil. The ashless lubricating oil is useful as a passenger vehicle engine oil (PVEO).

ASHLESS ENGINE LUBRICANTS FOR HIGH TEMPERATURE APPLICATIONS

An ashless lubricating oil having a lubricating oil base stock as a major component, and a mixture of (i) at least one ashless antiwear additive, (ii) at least one ashless detergent, and (iii) at least one aminic antioxidant, as minor components. The lubricating oil base stock is a monoester obtained by a) reacting one Guerbet alcohol of 8 to 20 carbon atoms with a Guerbet acid, a linear or branched acid of 6 to 20 carbon atoms or b) reacting one linear or branched alcohol with at least 6 to 20 carbon atoms with a Guerbet acid of 8 to 20 carbon atoms. The lubricating oil base stock is present in an amount from 30 to 99.8 wt. % of the oil. A method for improving oxidative stability and high temperature stability of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using the ashless lubricating oil. 1. A method for improving oxidative stability of a lubricating oil , in an engine or other mechanical component lubricated with the lubricating oil by using as the lubricating oil an ashless formulated oil , said ashless formulated oil having a composition comprising a lubricating oil base stock as a major component; and a mixture of (i) at least one ashless antiwear additive , (ii) at least one ashless detergent , and (iii) at least one aminic antioxidant , as minor components; wherein the lubricating oil base stock includes at least one monoester derived by:a) reacting one Guerbet alcohol of 8 to 20 carbon atoms with a Guerbet acid, a linear acid or a branched acid of 6 to 20 carbon atoms, orb) reacting one linear alcohol or branched alcohol with at least 6 to 20 carbon atoms with a Guerbet acid of 8 to 20 carbon atomswherein the lubricating oil base stock is present in an amount from about 30 to about 99.8 mass percent, based on the total mass of the lubricating oil.2. The method of wherein oxidative stability is improved claim 1 , as compared to oxidative stability achieved using a conventional synthetic engine oil.3. ...

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. 115-. (canceled)16. A composition for a heat cycle system , comprising:a working fluid; anda stabilizer;wherein:the working fluid comprises:30-50 mass % trifluoroethylene based on a total mass of working fluid; and50-70 mass % 1,3,3,3-tetrafluoropropene based on a total mass of the working fluid.17. The composition for a heat cycle system of claim 16 , wherein the 1 claim 16 ,3 claim 16 ,3 claim 16 ,3-tetrafluoropropene is HFO-1234ze(E).18. The composition for a heat cycle system of claim 16 , further comprising a refrigerant oil.19. An air conditioning apparatus claim 16 , comprising the composition for a heat cycle system of .20. An automobile claim 16 , comprising an air conditioning apparatus having the composition for a heat cycle system of contained therein.21. The composition for a heat cycle system of claim 16 , wherein the working fluid comprises:30-40 mass % trifluoroethylene based on a total mass of working fluid; and60-70 mass % 1,3,3,3-tetrafluoropropene based on a total mass of the working fluid.22. The composition for a heat cycle system of claim 21 , wherein the 1 claim 21 ,3 claim 21 ,3 claim 21 ,3-tetrafluoropropene is HFO-1234ze(E).23. The composition for a heat cycle system of claim 21 , further comprising a refrigerant oil.24. An air conditioning apparatus claim 21 , comprising the composition for a heat cycle system of .25. An automobile claim 21 , comprising an air conditioning apparatus having the composition for a heat cycle system of contained therein.26. The composition for a heat cycle system of claim 16 , wherein the working fluid consists of trifluoroethylene and 1 claim 16 ,3 claim 16 ,3 claim 16 ,3-tetrafluoropropene.27. The composition for a heat cycle system of claim 26 , wherein the 1 claim 26 ,3 ...

Lubricant composition

Disclosed herein is a process for lubricating an internal combustion engine with a lubricant composition that may be substantially ash free. The ashless lubricant composition described herein may comprise primary antioxidants, such as aminic diphenyl amines, alkylated phenyl-naphthyl amines, and phenolic antioxidants. The ashless lubricant composition described herein may also comprise sulfur containing products that may work as secondary antioxidants. Other components such as ashless antiwear components, dispersants, pour point depressants, friction modifiers, and metal deactivators may also be used to formulate an ashless lubricant composition according to an embodiment.

Lubricant compositions

A lubricant composition said composition comprising at least one base oil and from 1 to 70 wt % of at least one friction modifying additive, wherein the composition is such that the viscosity reversibly reduces at a pressure from 50 MPa to 3 GPa. A mechanical system comprising the lubricant composition; use of the lubricant composition and methods of reducing friction using the lubricant composition are also disclosed.

High Elastohydrodynamic Shear Strength Fluid Compositions

A lubrication fluid including cyclic hydrocarbons in combination with dimethylsilicone fluids and/or di-alkyl or di-cycloalkyl or alkyl-cycloalkyl, or mixtures thereof, and di-end-capped polypropylene oxides or highly branched esters to produce very high traction elastohydrodynamic (EHD) traction fluids and to modify the low temperature viscometric properties of the mixed fluids without adversely affecting the very high elastohydrodynamic shear strength or traction coefficients of the very high shear strength cyclic hydrocarbon fluid in the resulting mixed fluids with improved low temperature viscosity. 1. A lubrication fluid comprising:a polycyclic hydrocarbon fluid and a dimethylsiloxane compound having a viscosity range of 20 cSt at 77° F. or greater, wherein said dimethylsiloxane compound is present in an amount ranging from 0.1 wt. % and 25 wt. % by based on the lubricating fluid, and said dimethylsiloxane fluid contains not more than 10 wt. % of functional groups other than methyl functional groups.2. The composition according to claim 1 , wherein the polycyclic hydrocarbon fluid is a perhydro dimer of alpha-methylstyrene.3. The composition according to claim 1 , wherein the polycyclic hydrocarbon fluid is a linear perhydro dimer of alpha-methylstyrene.4. The composition according to claim 1 , wherein the dimethylsiloxane compound has a viscosity of at least 20 cS at 77° F. but not greater than 50 cS at 77° F.5. A lubrication fluid comprising:a polycyclic hydrocarbon fluid;a polypropyleneoxide composition present in an amount ranging from 0.1 wt. % to 25 wt. % of the lubricating fluid; anda dimethylsiloxane compound having a viscosity range of 20 cSt at 77° F. or greater, wherein said dimethylsiloxane compound is present in an amount ranging from 0.1 wt. % and 25 wt. % by based on the lubricating fluid, and said dimethylsiloxane fluid contains not more than 10 wt. % of functional groups other than methyl functional groups.6. The composition according to claim ...

LUBRICATING OIL AND METHOD FOR PRODUCING THE SAME

The present invention provides a lubricating oil composition comprising a polymer for improving viscosity, the composition suppressing viscosity increase in low temperature and having an excellent low-temperature property, and having low viscosity decrease caused by shearing. The present invention is a lubricating oil composition containing from 30 to 90% by weight of a liquid random copolymer (A) of ethylene and α-olefin produced by a specific method, and 10 to 70% by weight of a lubricating oil base consisting of one or more components selected from specific synthetic oil (B) or mineral oil (C) (note that the sum total of the components (A), (B) and (C) is 100% by weight). 2. The lubricating oil composition according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , at least one among substituents (R1 claim 1 , R2 claim 1 , R3 and R4) bonded to a cyclopentadienyl group claim 1 , is a hydrocarbon group having 4 or more carbon atoms.3. The lubricating oil composition according to claim 1 , wherein Rand R claim 1 , being the same claim 1 , are hydrocarbon groups having 1 to 20 carbon atoms.4. The lubricating oil composition according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , substituent (Ror R) bonded to the 3-position of the cyclopentadienyl group is a hydrocarbon group.5. The lubricating oil composition according to claim 4 , wherein in the metallocene compound represented by the above Formula 1 claim 4 , the hydrocarbon group (Ror R) bonded to the 3-position of the cyclopentadienyl group is an n-butyl group.6. The lubricating oil composition according to claim 1 , wherein in the metallocene compound represented by the Formula 1 claim 1 , substituents (Rand R) bonded to the 2-position and the 7-position of the fluorenyl group are all tert-butyl groups.8. The lubricating oil composition according to claim 7 , wherein the ammonium cation is a dimethylanilinium cation.9. ...

LUBRICATING OIL COMPOSITION FOR AUTOMOBILE GEARS AND METHOD FOR PRODUCING THE SAME

A lubricating oil composition for automobile gears, including a lubricant base oil and a liquid random copolymer of ethylene and α-olefin(s), the liquid random copolymer being produced using a specific catalyst, wherein the lubricating oil composition has a kinematic viscosity at 100° C. of 7 to 30 mm/s, and wherein the lubricant base oil consists of a mineral oil having a kinematic viscosity at 100° C. of 2 to 10 mm/s, a viscosity index of 105 or more and a pour point of −10° C. or lower, and/or a synthetic oil having a kinematic viscosity at 100° C. of 1 to 10 mm/s, a viscosity index of 120 or more and a pour point of −30° C. or lower. 2. A lubricating oil composition for automobile gears according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , at least one among substituents (R claim 1 , R claim 1 , Rand R) bonded to a cyclopentadienyl group claim 1 , is a hydrocarbon group having 4 or more carbon atoms.3. A lubricating oil composition for automobile gears according to claim 1 , wherein Rand R claim 1 , being the same claim 1 , are hydrocarbon groups having 1 to 20 carbon atoms.4. A lubricating oil composition for automobile gears according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , substituent (Ror R) bonded to the 3-position of the cyclopentadienyl group is a hydrocarbon group.5. A lubricating oil composition for automobile gears according to claim 4 , wherein in the metallocene compound represented by the above Formula 1 claim 4 , the hydrocarbon group (Ror R) bonded to the 3-position of the cyclopentadienyl group is an n-butyl group.6. A lubricating oil composition for automobile gears according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , the hydrocarbon groups (Rand R) bonded to the 2-position and 7-position of the fluorenyl group are all tert-butyl groups.8. A lubricating oil composition for automobile gears ...

LUBRICATING OIL COMPOSITION, AND PRECISION REDUCTION GEAR USING SAME

Provided are a lubricating oil composition containing a base oil, a specific thiophosphate compound (A) and a molybdenum-based compound (B), which exhibits excellent wear resistance and has a low friction coefficient in a broad range of contact pressures ranging from high to low; and a precision reduction gear using the lubricating oil composition. 2. The lubricating oil composition according to claim 1 , wherein the content of the component (B) in terms of molybdenum atom is 150 ppm by mass or more and 3 claim 1 ,000 ppm by mass or less based on the total amount of the lubricating oil composition.4. The lubricating oil composition according to claim 1 , wherein the content of the component (A) is 0.1% by mass or more and 1.0% by mass or less based on the total amount of the lubricating oil composition.5. The lubricating oil composition according to claim 1 , further containing a phosphate compound (C) not containing a sulfur atom.6. The lubricating oil composition according to claim 5 , wherein the content of the component (C) is 0.05% by mass or more and 1.5% by mass or less based on the total amount of the lubricating oil composition.7. The lubricating oil composition according to claim 1 , further comprising a sulfur-based compound (D) containing 2 or more sulfur atoms in the molecule and not containing a phosphorus atom.8. The lubricating oil composition according to claim 7 , wherein the content of the component (D) is 0.01% by mass or more and 1% by mass or less based on the total amount of the lubricating oil composition.9. The lubricating oil composition according to claim 1 , which has a kinematic viscosity at 40° C. of 40 mm/s or more.10. The lubricating oil composition according to claim 1 , which is used in precision reduction gears.11. A precision reduction gear claim 1 , comprising the lubricating oil composition of .12. The precision reduction gear of claim 11 , which is incorporated in industrial robots. The present invention relates to a ...

Grease Composition and Wheel Supporting Rolling Bearing Unit Having Grease Composition Packed Therein

There is provided a grease composition decreasing the load sensitivity to a running torque, maintaining necessary performances for a wheel supporting rolling bearing unit, and maintaining a good lubricated condition for a long time, and, a wheel supporting rolling bearing unit having the grease composition packed therein. The grease composition contains base oil, thickeners, rust inhibitors, and anti-wear agents, the base oil contains mineral oil, synthetic oil or blend oil of the mineral oil and the synthetic oil, a mix ratio (mass ratio) of the mineral oil and the synthetic oil is 0:100 to 20:80, a kinematic viscosity of the base oil at a temperature of 40° C. is 70 to 150 mm 2 /s, and a pour point of the base oil is equal to or lower than −40° C. The wheel supporting rolling bearing unit is packed with this grease composition.

Grease Composition and Rolling Bearing in Which Grease Composition is Sealed

There is provided a grease composition containing a base oil including an ester oil, and a thickener including diurea represented by formula (1) below: 2. The grease composition according to claim 1 , wherein a shear viscosity at a temperature of 130° C. and a shear rate of 100 sis 4 Pa·s or more claim 1 , and a shear stress at a strain of 1 claim 1 ,000 claim 1 ,000% is 1800 Pa or more.3. A rolling bearing in which the grease composition according to is sealed.4. A rolling bearing in which the grease composition according to is sealed. The disclosure of Japanese Patent Application No. 2016-207010 filed on Oct. 21, 2016 including the specification, drawings and abstract is incorporated herein by reference in its entirety.The invention relates to a grease composition and a rolling bearing in which the grease composition is sealed.Japanese Patent Application Publication No. 2010-65171 (JP 2010-65171 A) discloses a grease composition for use with motor bearings, which contains a base oil made of a perfluoropolyether oil, a thickener made of polytetrafluoroethylene, and silica as inorganic particles.In a bearing in which grease is sealed as a lubricant, the grease significantly affects the torque performance of the bearing. To assure low-torque performance in the bearing, it is preferred that the high-temperature viscosity of the grease be reduced, so that during rotation of the bearing, the grease flows in regions (such as seals and a cage) that are unlikely to affect torque. When the grease has high fluidity, however, the grease may leak through minute gaps or the like present in the bearing.One object of the present invention is to provide a grease composition that can provide both low-torque performance and resistance to grease leakage, as well as a rolling bearing in which the grease composition is sealed.According to an aspect of the present invention a grease composition contains a base oil including an ester oil, and a thickener including diurea represented by ...

Non-newtonian engine oil with superior engine wear protection and fuel economy

Provided is a non-Newtonian engine oil lubricant composition with improved fuel efficiency and engine wear protection. The lubricant composition includes a major amount of a base oil including a Group II base stock and an optional Group V base stock, from 0.1 to 9.0 wt. % of at least one viscosity modifier and from 0.1 to 1.2 wt. % of at least one friction modifier. The non-Newtonian engine oil lubricant composition has a kinematic viscosity at 100 deg. C. of less than or equal to 10 cSt and an HTHS (ASTM D4683) of less than or equal to 2.2 cP at 150° C. Also provided are methods of using the lubricant composition in internal combustion engines and methods of making the lubricant composition.

UNIQUE OIL AS A SERVICE EVENT

A method of performing a cleanup service on an internal combustion engine. The method involves draining used fleet oil from the engine, filling the engine with cleanup oil, draining the cleanup oil after an operation interval, and filling the engine with fresh fleet oil. The method can be performed as a remedial measure for an engine already exhibiting high oil consumption, or as a preventative measure on a healthy engine. 1. A method of performing a cleanup service on an internal combustion engine , the method comprising:draining used fleet oil from the internal combustion engine;filling the internal combustion engine with a first cleanup oil;draining the first cleanup oil after an operation interval; andfilling the internal combustion engine with fresh fleet oil.2. The method of claim 1 , further comprising claim 1 , before filling the internal combustion engine with the first cleanup oil claim 1 , flushing the internal combustion engine with a second cleanup oil.3. The method of claim 2 , wherein the first cleanup oil or the second cleanup oil comprises an ester-based oil claim 2 , an alkylated naphthalene and a polyalphaolefin base oil.4. The method of claim 2 , wherein the first cleanup oil has a same formulation as the second cleanup oil.5. The method of claim 2 , wherein the first cleanup oil has a different formulation than the second cleanup oil.6. The method of claim 2 , wherein the first cleanup oil or the second cleanup oil comprises a non-petroleum-based oil.7. The method of claim 1 , wherein the operation interval is at least 20 claim 1 ,000 miles.8. The method of claim 1 , wherein the first cleanup oil dissolves at least one of sludge claim 1 , varnish claim 1 , and hard carbon in the internal combustion engine and wherein draining the first cleanup oil after an operation interval includes draining the dissolved at least one of sludge claim 1 , varnish claim 1 , and hard carbon from the internal combustion engine.9. The method of claim 8 , wherein the ...

LUBRICATING OIL COMPOSITION FOR HYDRAULIC OIL AND METHOD FOR PRODUCING THE SAME

A lubricating oil composition for hydraulic oils including 10 to 99% by mass of a lubricant base oil (A) with a kinematic viscosity at 100° C. of 1 to 14 mm/s, a viscosity index of 100 or more, and a pour point of 0° C. or lower, and 90 to 1% by mass of a liquid random copolymer (B) of ethylene and α-olefin prepared using a specific catalyst, wherein the total amount of (A) and (B) is 100% by mass, and having a kinematic viscosity at 100° C. of 10 to 300 mm/s. 2. The lubricating oil composition for hydraulic oils according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , at least one among substituents (R claim 1 , R claim 1 , Rand R) bonded to a cyclopentadienyl group is a hydrocarbon group having 4 or more carbon atoms.3. The lubricating oil composition for hydraulic oils according to claim 1 , wherein Rand R claim 1 , being the same claim 1 , are hydrocarbon groups having 1 to 20 carbon atoms.4. The lubricating oil composition for hydraulic oils according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , substituent (Ror R) bonded to the 3-position of the cyclopentadienyl group is a hydrocarbon group.5. The lubricating oil composition for hydraulic oils according to claim 4 , wherein in the metallocene compound represented by the above Formula 1 claim 4 , the hydrocarbon group (Ror R) bonded to the 3-position of the cyclopentadienyl group is an n-butyl group.6. The lubricating oil composition for hydraulic oils according to claim 1 , wherein in the metallocene compound represented by the above Formula 1 claim 1 , the hydrocarbon group (Rand R) bonded to the 2-position and 7-position of the fluorenyl group are all tert-butyl groups.8. The lubricating oil composition for hydraulic oils according to claim 7 , wherein the ammonium cation is a dimethylanilinium cation.9. The lubricating oil composition for hydraulic oils according to claim 7 , wherein the catalyst system further ...

LUBRICANT COMPOSITION

Disclosed is a lubricating oil composition containing a base oil, a viscosity index improver, a molybdenum-based friction modifier, a boron-containing dispersant, and at least two extreme-pressure additives selected from a sulfur-based extreme-pressure additive, a phosphorous-based extreme-pressure additive and a sulfur/phosphorus-based extreme-pressure additive, or a sulfur/phosphorus-based extreme-pressure additive. The base oil is a synthetic oil having a kinematic viscosity at 100° C. of 3 mm/s or more and 10 mm/s or less, the viscosity index improver is a resin having a number average molecular weight (Mn) of 1,000 or more and 10,000 or less, the mass ratio of boron atoms (B) contained in the boron-containing dispersant to molybdenum atoms (Mo) contained in the molybdenum-based friction modifier, [(B)/(Mo)] is 1 or more and 5 or less, and the mass ratio of sulfur atoms (S) to phosphorus atoms (P) contained in the extreme-pressure additive(s), [(S)/(P)] is 10 or more and 20 or less. 1. A lubricating oil composition , comprising:a base oil;a viscosity index improver;a molybdenum-based friction modifier;a boron-containing dispersant; andat least two extreme-pressure additives selected from the group consisting of a sulfur-based extreme-pressure additive, a phosphorous-based extreme-pressure additive and a sulfur/phosphorus-based extreme-pressure additive, or a sulfur/phosphorus-based extreme-pressure additive,wherein:the base oil is formed of only a synthetic oil;{'sup': 2', '2, 'a kinematic viscosity of the base oil at 100° C. is 3 mm/s or more and 10 mm/s or less;'}the viscosity index improver is a resin having a number average molecular weight (Mn) of 1,000 or more and 10,000 or less;a mass ratio of boron atoms (B) contained in the boron-containing dispersant to molybdenum atoms (Mo) contained in the molybdenum-based friction modifier, [(B)/(Mo)] is 1 or more and 5 or less; anda mass ratio of sulfur atoms (S) to phosphorus atoms (P) contained in the extreme- ...

HEAT PUMP APPARATUS

A heat pump apparatus is provided in which refrigerant circulates between an indoor unit and an outdoor unit, wherein the refrigerant is a mixed refrigerant of HFO-1123 and an HFC refrigerant other than HFO-1123, the outdoor unit has a cooling capacity (kW) in the range of 2.2 to 9.5 kW, the outer diameter φ (mm) of a gas pipe between the indoor unit and the outdoor unit and the cooling capacity (kW) of the outdoor unit satisfy the relation (1.00≦outer diameter φ (mm) of gas pipe/cooling capacity (kW) of outdoor unit≦5.77), and the outer diameter φ (mm) of a liquid pipe between the indoor unit and the outdoor unit and the cooling capacity (kW) of the outdoor unit satisfy the relation (0.67≦outer diameter φ (mm) of liquid pipe/cooling capacity (kW) of outdoor unit≦5.77). 1. A heat pump apparatus comprising:an indoor unit;an outdoor unit having a cooling capacity (kW) in the range of 2.2 to 9.5 kW;a refrigerant circulating between the indoor unit and the outdoor unit, the refrigerant being a mixed refrigerant of HFO-1123 and an HFC refrigerant other than HFO-1123;a gas pipe communicating between the indoor unit and the outdoor unit; anda liquid pipe communicating between the indoor unit and the outdoor unit, [{'br': None, '1.00≦an outer diameter φ(mm) of the gas pipe/the cooling capacity (kW) of the outdoor unit≦5.77\u2003\u2003(1)'}, {'br': None, '0.67≦an outer diameter φ(mm) of the liquid pipe/the cooling capacity (kW) the of outdoor unit≦5.77\u2003\u2003(2)'}], 'the gas pipe and the outdoor unit being configured to satisfy the following formula (1), and the liquid pipe and the outdoor unit being configured to satisfy the following formula (2)2. A heat pump apparatus comprising:a plurality of indoor units;at least one outdoor unit having a cooling capacity (kW) of 10 kW or more and less than 40 kW;a refrigerant circulating between the plurality of indoor units and the at least one outdoor unit, the refrigerant being a mixed refrigerant of HFO-1123 and an HFC ...

HYDRAULIC FLUIDS FROM RENEWABLE ISOPARAFFINS

A hydraulic fluid comprising a biobased base oil having hydrolytic stability. 1. A hydraulic fluid comprising a biobased hydrocarbon base oil having an average molecular weight (weight average) between 300 g/mol and 900 g/mol , and an additive package , the additive package comprising an anti-oxidant.2. A hydraulic fluid comprising a biobased hydrocarbon base oil , the hydraulic fluid having a biodegradable rate in excess of 60% as determined in accordance with OECD 301B.3. A hydraulic fluid comprising a biobased base oil having the molecular structure:{'br': None, 'sub': n', 'm, '[B]—[P]'} [B] is biobased hydrocarbon repeating unit;', '[P] is non-biobased hydrocarbon repeating unit;', 'n is greater than 1, and m is less than 4;', 'the stereoscopic arrangement of [B] and [P] repeating unit can be linear, branched, and cyclic.', 'the sequential arrangement of [B] and [P] can be block, alternating or random; and', 'the molecular weight is in range of 300 g/mol to 900 g/mol; and', 'the biobased content of the hydraulic fluid is greater than 20%, as measured by ASTM D6866-12., 'wherein,'}4. A hydraulic fluid comprising a biobased base oil , wherein at least about 20% of the carbon atoms in the biobased base oil originate from renewable carbon sources and the hydraulic fluid meets Denison Hydraulics standard HF-0.5. A hydraulic fluid comprising a biobased base oil , wherein at least about 20% of the carbon atoms in the biobased base oil originate from renewable carbon sources and the hydraulic fluid has a TAN <2 at 1000 hours as determined in accordance with ASTM D943-04a (2010)e1.6. A hydraulic fluid comprising a biobased hydrocarbon base oil , wherein at least about 20% of the carbon atoms in the biobased base oil originate from renewable carbon sources and the hydraulic fluid has a pour point of less than 40° C.7. A hydraulic fluid comprising a biobased hydrocarbon base oil , the hydraulic fluid being compatible with and suitable for mixing with a Group I , Group II ...

Branched diesters for use as a base stock and in lubricant applications

This application relates to branched diester compositions that can be used as a base stock for lubricant applications, or as a base stock blend component for use in a finished lubricant or for particular applications, and methods for making the same.

GREASE COMPOSITION, ROLLING BEARING, AND MOTOR

A grease composition according to an embodiment includes a base oil, a thickener and 0.5% by weight or more of a dispersing agent, the dispersing agent including at least one of a carboxylic acid metal salt, a metal salt of a polycarboxylic acid and a copolymer of a carboxylic acid metal salt and a hydrocarbon compound. 1. A grease composition including:a base oil;a thickener; and0.5% by weight or more of a dispersing agent,the dispersing agent including at least one of a carboxylic acid metal salt, a metal salt of a polycarboxylic acid and a copolymer of a carboxylic acid metal salt and a hydrocarbon compound.2. The grease composition according to claim 1 , wherein at least one of the carboxylic acid metal salt and the metal salt of the polycarboxylic acid is an alkali metal salt or an alkaline earth metal salt claim 1 , the alkali metal salt including at least one of a sodium salt claim 1 , a lithium salt claim 1 , and a potassium salt claim 1 , the alkaline earth metal salt including at least one of a magnesium salt and a calcium salt.3. The grease composition according to claim 1 , wherein the carboxylic acid metal salt forming the copolymer of the carboxylic acid metal salt and the hydrocarbon compound is an alkali metal salt or an alkali earth metal salt claim 1 , the alkali metal salt including at least one of a sodium salt claim 1 , a lithium salt claim 1 , and a potassium salt claim 1 , the alkaline earth metal salt including at least one of a magnesium salt and a calcium salt.4. The grease composition according to claim 1 , wherein a content of the dispersing agent is 10% by weight or less.6. A rolling bearing comprising the grease composition according to .7. A motor comprising the rolling bearing according to .9. A rolling bearing comprising the grease composition according to .10. A motor comprising the rolling bearing according to . The present application claims priority to and incorporates by reference the entire contents of Japanese Patent ...

LUBRICANT COMPOSITION AND MANUFACTURING METHOD OF LUBRICANT COMPOSITION

Provided are a lubricant composition in which low friction and low abrasion are compatible in various temperatures and loads, and a manufacturing method of a lubricant composition. A lubricant composition of the present invention contains at least trivalent or more polyol a1; a mixture b1 of at least one of a polymerization reaction mixture of an unsaturated fatty acid having 18 to 22 carbon atoms which contains at least 75 mass % of a divalent carboxylic acid having 36 to 44 carbon atoms or a mixture obtained by performing hydrogenation with respect to the polymerization reaction mixture; and composite ester A containing polyester in which monool c1 represented by General Formula (1) described below is condensed, in which a feed ratio of the number of moles of a hydroxyl group of a1/the number of moles of a carboxylic acid of b1/the number of moles of a hydroxyl group of c1 is 1/1.5 to 2.0/0.7 to 1.5, and a content of the composite ester A is 0.1 to 5 mass % with respect to the total mass of the lubricant composition. 1. A lubricant composition , containing at least:trivalent or more polyol a1;a mixture b1 of at least one of a polymerization reaction mixture of an unsaturated fatty acid having 18 to 22 carbon atoms which contains at least 75 mass % of a divalent carboxylic acid having 36 to 44 carbon atoms or a mixture obtained by performing hydrogenation with respect to the polymerization reaction mixture; andcomposite ester A containing polyester in which monool c1 represented by General Formula (1) described below is condensed,wherein a feed ratio of the number of moles of a hydroxyl group of a1/the number of moles of a carboxylic acid of b1/the number of moles of a hydroxyl group of c1 is 1/1.5 to 2.0/0.7 to 1.5, and {'br': None, 'R—OH\u2003\u2003General Formula (1), 'a content of the composite ester A is 0.1 to 5 mass % with respect to the total mass of the lubricant composition,'}in General Formula (1), R represents a linear alkyl group having greater than or ...

LUBRICATING OIL COMPOSITIONS WITH ENGINE WEAR PROTECTION

A method for improving wear control of a steel surface lubricated with a lubricating oil through the generation of thick tribofilms. The method includes: (i) using as the lubricating oil a formulated oil, the formulated oil having a composition comprising at least one lubricating oil base stock as a major component; and at least one lubricating oil additive, as a minor component; and (ii) forming a tribofilm on the steel surface. In time-step tribofilm formation measurements of the lubricating oil by a mini-traction machine (MTM) at constant slide-to-roll ratio (SRR), the saturation traction coefficient (f), which correlates to tribofilm thickness on the steel surface, is greater than about 0.11. In the method of this disclosure, elongation of timing chain due to wear of chain link pins is less than about 0.07%, as determined by Ford Chain Wear (FCW) test conducted in accordance with ILSAC GF-6 specification. The lubricating oils are useful in internal combustion engines. 1. A method for improving wear control of a steel surface lubricated with a lubricating oil , said method comprising: (i) using as the lubricating oil a formulated oil , said formulated oil having a composition comprising at least one lubricating oil base stock as a major component; and at least one lubricating oil additive , as a minor component; and (ii) forming a tribofilm on the steel surface; wherein , in time-step tribofilm formation measurements of the lubricating oil by a mini-traction machine (MTM) at constant slide-to-roll ratio (SRR) , the saturation traction coefficient (f) , which correlates to tribofilm thickness on the steel surface , is greater than about 0.11.2. The method of wherein elongation of timing chain due to wear of chain link pins is less than about 0.07% claim 1 , as determined by Ford Chain Wear (FCW) test in accordance with ILSAC GF-6 specification.3. The method of wherein the lubrication regime at the steel surface comprises boundary- and mixed-layer lubrication ...

Lubricating oil compositions having improved cleanliness and wear performance

A method for improving wear control, while maintaining or improving deposit control and cleanliness, in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and specific combinations of low soap detergents, dispersants, and/or mixtures thereof, as a minor component. The low soap detergents include alkaline earth metal salicylates, alkaline earth metal sulfonates, or mixtures thereof, all having the same or different total base number (TBN). The total amount of soap delivered by the low soap detergent is less than 0.60 weight percent of the lubricating oil. The dispersants include borated and/or non-borated polyisobutylene succinimide (PIMA) having a basic nitrogen content of 1% or greater. The lubricating oils are useful in internal combustion engines.

LUBRICATING OIL COMPOSITIONS WITH ENGINE WEAR PROTECTION

A method for improving wear control of a steel surface lubricated with a lubricating oil through the generation of fast-forming tribofilms. The method includes: (i) using as the lubricating oil a formulated oil, the formulated oil having a composition comprising at least one lubricating oil base stock as a major component, and at least one detergent, as a minor component; and (ii) forming a tribofilm on the steel surface. The time for the tribofilm to reach 95% of its saturation coverage (t) on the steel surface is less than about 50 minutes, as determined by a high frequency reciprocating rig (HFRR) in accordance with a modified version of ASTM D6079. A lubricating oil including an ester base stock, an alkylated naphthalene base stock, or mixtures thereof, as a major component; and at least one detergent including an alkaline earth metal salicylate, an alkaline earth metal sulfonate, or mixtures thereof, as a minor component. 1. A method for improving wear control of a steel surface lubricated with a lubricating oil , said method comprising: (i) using as the lubricating oil a formulated oil , said formulated oil having a composition comprising at least one lubricating oil base stock as a major component; and at least one detergent , as a minor component; and (ii) forming a tribofilm on the steel surface; wherein the time for the tribofilm to reach 95% of its saturation coverage (t) on the steel surface is less than about 50 minutes , as determined by a high frequency reciprocating rig (HFRR) in accordance with a modified version of ASTM D6079; and wherein , in tribofilm formation measurements of the lubricating oil by a mini-traction machine (MTM) in Stribeck mode , the number of Stribeck passes (S) until an increase in traction coefficient at 10 mm/s is achieved , which correlates to onset of the tribofilm formation on the steel surface , is about 2 or less.2. The method of wherein elongation of timing chain due to wear of chain link pins is less than about 0.07% ...

ULTRA-FLUID LUBRICATING COMPOSITION

In the field of lubricating compositions for motor vehicles, there is disclosed a lubricating composition of a grade according to the SAEJ300 classification defined by the formula (X) W (Y) wherein X represents 0 or 5 and Y represents an integer ranging from 4 to 20. This lubricating composition includes at least one polyalphaolefinic oil (PAO), from 10 to 80% by weight of the composition of at least one oil of group V and at least one comb polymer. Also isclosed is the use of this lubricating composition for improving the Fuel Eco (FE) of a lubricant or for reducing the fuel consumption of an engine, in particular a motor vehicle engine, notably a motor of a hybrid vehicle. 118-. (canceled)20. The lubricant composition according to of a grade according to the SAEJ300 classification selected from among 0W4 claim 19 , 0W8 claim 19 , 0W12 claim 19 , 0W16 claim 19 , 0W20 claim 19 , 5W4 claim 19 , 5W8 claim 19 , 5W12 claim 19 , 5W16 claim 19 , 5W20.21. The lubricant composition according to claim 19 , for which the cinematic viscosity measured at 40° C. according to the ASTM D445 standard ranges from 12 to 30 mm.s.22. The lubricant composition according to for which the cinematic viscosity of the PAO claim 19 , measured at 100° C. according to the ASTM D445 standard claim 19 , ranges from 1.5 to 6 mm.sor from 2 to 8 mm.sor further from 2 to 6 mm.s.23. The lubricant composition according to for which the average molecular mass by weight of the PAO is less than 500 Da or ranges from 50 to 500 Da or ranges from 50 to 350 Da or from 50 to 300 Da.24. The lubricant composition according to comprising from 20 to 80% claim 19 , from 30 to 60% or from 35 to 45% by weight of the oil composition of group V.25. The lubricant composition according to claim 19 , for which the oil of group V is selected from among a monoester claim 19 , a polyalkylene-glycol (PAG).27. The lubricant composition according to claim 19 , for which the comb polymer for which the pendant chains are obtained ...

Lubricating oil composition for transmissions

A lubricating oil composition for transmissions is provided which improves fuel saving properties and has excellent metal fatigue life and heat resistance. The composition contains 50 to 97 percent by mass of (A) a mineral base oil having a 100° C. kinematic viscosity of 1.5 mm 2 /s or higher and 3.5 mm 2 /s or lower, a pour point a −25° C. or lower, a viscosity index of 105 or greater, a % C p of 85 or greater, a % C N of 2 or greater and 20 or less and a % C A of 3 or less; 3 to 10 percent by mass of (B) a monoester-hased base oil having a 100° C. kinematic viscosity of 2 mm 2 /s or higher and 10 mm 2 /s or lower; and 150 to 400 ppm by mass as phosphorus of (C) a specific sulfur-containing phosphite ester. The composition has a 100° C. kinematic viscosity of 2.5 mm 2 /s or higher and 4.0 mm 2 /s or lower.

Hydraulic Fluid and Lubricant Compositions Using Biodiesel

A composition and method of making hydraulic fluids and lubricants using biodiesel as a blending component or base oil. Preferably around 0.1 to 45% of biodiesel is used as a blending component in a hydraulic fluid or as a base oil or additive in a lubricant. The use of biodiesel has environmental and cost advantages over other blending components or base oils. Lubricants and hydraulic fluids having ISO viscosity grades as low as 22 and 32 may be achieved by the use of biodiesel, while still meeting applicable standards for environmental acceptability. 1. A lubricant or hydraulic fluid comprising biodiesel and at least one other base oil.2. The lubricant or hydraulic fluid according to wherein the lubricant or hydraulic fluid comprises around 0.1% to 55% by weight biodiesel.3. The lubricant or hydraulic fluid according to wherein the lubricant or hydraulic fluid comprises around 0.1% to 45% by weight biodiesel and 99.9 to 55% total of one or more vegetable oils as the only other base oil.4. The lubricant or hydraulic fluid according to wherein the lubricant or hydraulic fluid comprises around 1% to 40% by weight biodiesel and around 99% to 60% total of one or more vegetable oils.5. The lubricant or hydraulic fluid according to wherein the lubricant or hydraulic fluid comprises around 5% to 35% by weight biodiesel and around 95% to 65% total of one or more vegetable oils.6. The lubricant or hydraulic fluid according to wherein the lubricant or hydraulic fluid comprises around 0.1% to 55% by weight biodiesel and around 99.9% to 45% total of one or more higher viscosity base oils as the only other base oil.7. The lubricant or hydraulic fluid according to wherein the lubricant or hydraulic fluid comprises around 5% to 55% by weight biodiesel and around 95% to 45% total of one or more higher viscosity base oils.8. The lubricant or hydraulic fluid according to wherein the lubricant or hydraulic fluid comprises around 1% to 45% by weight biodiesel and around 99% to 55% ...

Rolling bearing

A rolling bearing that can prevent peeling on a surface of an iron-based metal member by hydrogen brittleness even under a severe environment is provided. The rolling bearing 1 has plural bearing elements formed of an iron-based metal, and a lubricant composition 7 that lubricates metal contact surfaces of the respective bearing elements, the lubricant composition 7 is a grease containing a base oil and alkanolamine and being free of alkali metal salts and alkaline earth metal salts of inorganic acids, the base oil is at least one oil selected from alkyl diphenyl ether oils, poly-α-olefin oils and ester oils, and the alkanolamine is contained by 0.1 to 10 parts by weight with respect to 100 parts by weight of the total amount of the base oil and a thickener.

Monoester-Based Lubricants and Methods of Making Same

Disclosed herein are monoester-based lubricant compositions and methods of making these monoester-based lubricant compositions. The monoester lubricant compositions comprise an isomeric mixture of at least one monoester species having a carbon number ranging from Cto C. In some embodiments, the methods for making the monoester-based lubricants utilize a biomass precursor and/or low value Fischer-Tropsch (FT) olefins and/or alcohols to produce high value monoester-based lubricants. In some embodiments, the monoester-based lubricants are derived from FT olefins and fatty acids. The fatty acids can be from a bio-based source (i.e., biomass, renewable source) or can be derived from FT alcohols via oxidation. 2. The lubricant composition of claim 1 , wherein R claim 1 , R claim 1 , and Rare independently selected from alkyl groups to provide a monoester species or mixture of monoester species having a carbon number ranging from Cto C.3. The lubricant composition of claim 1 , wherein R claim 1 , R claim 1 , and Rare independently selected from alkyl groups to provide a monoester species or mixture of monoester species having a carbon number ranging from Cto C.4. The lubricant composition of claim 1 , wherein R claim 1 , R claim 1 , and Rare independently selected from alkyl groups to provide a monoester species or mixture of monoester species having a carbon number ranging from Cto C.5. The lubricant composition of claim 1 , wherein Rand Rare independently selected from alkyl groups to have a combined carbon number of Cto Cand Ris an alkyl group having a carbon number of from Cto C.6. The lubricant composition of claim 1 , wherein Rand Rare independently selected from alkyl groups to have a combined carbon number of Cto Cand Ris an alkyl group having a carbon number of from Cto C.7. The lubricant composition of claim 1 , wherein Rand Rare independently selected from alkyl groups to have a combined carbon number of Cto Cand Ris an alkyl group having a carbon number of from ...

LUBRICANT BASE OIL AND LUBRICATING OIL COMPOSITION

A lubricant base oil composed of an ester. The ester includes a component (A) derived from trimethylolpropane in a molar percentage A% of to mol %; components (B) derived from monovalent straight-chain saturated fatty acids each having a carbon number of 8 to 12 in a molar percentage Bof 33 to 55 mol %: and a component (C) derived from adipic acid in a molar ratio Cof 12 to 34 mol %. The components (B) include lauric acid in a molar percentage of 5 to 50 mol %, and (B+C)/Ais 0.90 to 1.02. Arepresents a hydroxyl equivalent of the component (A), Brepresents a carboxyl group equivalent of the components (B); and Crepresents a carboxyl group equivalent of the component (C). 1. A lubricant base oil comprising an ester , said ester comprising:{'sub': 'mol%', 'a component (A) derived from trimethylolpropane in a molar percentage Aof 25 to 42 mol %;'}{'sub': 'mol%', 'components (B) derived from monovalent straight-chain saturated fatty acids each having a carbon number of 8 to 12 in a molar percentage Bof 33 to 55 mol %: and'}{'sub': 'mol%', 'a component (C) derived from adipic acid in a molar ratio Cof 12 to 34 mol %,'}wherein said components (B) derived from said monovalent straight-chain saturated fatty acids each having a carbon number of 8 to 12 comprise a component derived from lauric acid in a molar percentage of 5 to 50 mol %, and{'sub': COOH', 'COOH', 'OH, 'wherein (B+C)/A is 0.90 to 1.02.'}{'sub': 'OH', '(Arepresents a hydroxyl equivalent of said component (A) derived from trimethylolpropane,'}{'sub': 'COOH', 'Brepresents a carboxyl group equivalent of said components (B) derived from said monovalent straight-chain saturated fatty acids each having a carbon number of 8 to 12, and'}{'sub': 'COOH', 'Crepresents a carboxyl group equivalent of said component (C) derived from adipic acid.)'}2. A lubricating oil composition comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '100 mass percent of said lubricant base oil of ; and'}{'b': 0', '1, '. to 3.0 mass ...

REFRIGERATING MACHINE OIL

The present invention provides a refrigerating machine oil including a lubricating base oil and a compound represented by the following formula (A): 2. The refrigerating machine oil according to claim 1 , comprising at least one oxygen-containing oil selected from the group consisting of esters and ethers claim 1 , as the lubricating base oil.3. The refrigerating machine oil according to claim 1 , further comprising an epoxy compound.4. The refrigerating machine oil according to claim 3 , comprising at least one selected from the group consisting of glycidyl ether-based epoxy compounds claim 3 , glycidyl ester-based epoxy compounds claim 3 , oxirane compounds claim 3 , alkyl oxirane compounds claim 3 , alicyclic epoxy compounds claim 3 , epoxidized fatty acid monoesters claim 3 , and epoxidized plant oils claim 3 , as the epoxy compound.5. The refrigerating machine oil according to claim 3 , comprising at least one selected from the group consisting of glycidyl ether-based epoxy compounds claim 3 , glycidyl ester-based epoxy compounds claim 3 , and alicyclic epoxy compounds claim 3 , as the epoxy compound.6. The refrigerating machine oil according to claim 1 , wherein the polar group has an oxygen atom. The present invention relates to a refrigerating machine oil.Refrigerating machines such as refrigerators, car air-conditioners, room air-conditioners, and automatic vending machines have compressors for circulating refrigerants through their refrigerating cycles. These compressors are filled with refrigerating machine oils for lubricating slide members. Refrigerating machine oils are required to have properties such as antiwear property and stability.Refrigerating machine oils generally contain lubricating base oils and additives which are selected depending on the aforementioned required properties. Conventionally, orthophosphate esters, acid phosphate esters, and the like are used as additives (antiwear agents) for improving antiwear property (for example, see ...

LUBRICATION OIL COMPOSITION

The present invention provides a lubricating oil composition having an extremely high viscosity index and a low coefficient of traction as a low coefficient of fluid friction in an elastohydrodynamic lubrication which is excellent in saving of energy and reduction in fuel consumption. The lubricating oil composition according to the present invention includes the following components (A) and (B): (A) a low-viscosity synthetic oil comprising a compound containing ether bond(s) in a molecule thereof and having a kinematic viscosity of less than 10 mm/s as measured at 40° C., in which a ratio of the number of oxygen atoms to the number of carbon atoms as constituents of the compound (O/C ratio) and the kinematic viscosity (mm/s) of the compound as measured at 40° C. satisfy the following formula (1); Kinematic Viscosity at 40° C.≦12−[(O/C ratio)×30] (1); and (B) a high-viscosity synthetic oil as a hydrocarbon-based synthetic oil having a kinematic viscosity of 40 mm/s or more as measured at 100° C. which includes at least one compound selected from the group consisting of an α-olefin oligomer, a hydrogenated α-olefin oligomer and an ethylene-propylene co-oligomer.

GREASE COMPOSITIONS AND A METHOD FOR MAKING THE SAME

A grease composition comprising a thickener and a lubricating base oil, wherein the lubricating base oil has a viscosity in the range of from 5-1000 cSt (at 40° C.). The thickener is present in an amount of 5-40 wt. %, based on total weight of the grease composition. The thickener comprises an ester terminated oligomer which has the general formula: “R1-O—[CO—R2-CO—NH—R3-NH—CO—R2-CO]n-O—R1”. “R1” represents a hydrocarbon group containing 4-22 carbon atoms. “R2” represents a hydrocarbon group containing 4-42 carbon atoms. “R3” represents a hydrocarbon group containing 2-9 carbon atoms. “n” represents an integer in the range of 1-20. The weight ratio between the lubricating base oil and the ester terminated oligomer (oil/oligomer) is larger than 1. The grease composition can be used for lubricating a mechanical component having a metal surface and/or for protecting a mechanical component having a metal surface against corrosion, wear and/or fretting. 1. A grease composition comprising:a thickener; anda lubricating base oil,wherein the lubricating base oil has a viscosity in the range of from 5-1000 cSt (at 40° C.),wherein the thickener is present in an amount of 5-40 wt. %, based on a total weight of the grease composition, {'br': None, 'R1-O—[CO—R2-CO—NH—R3-NH—CO—R2-CO]n-O—R1,'}, 'wherein the thickener comprises an ester terminated oligomer which has the general formula ofwherein R1 each independently represent a hydrocarbon group containing 4-22 carbon atoms,wherein R2 represents a hydrocarbon group containing 4-42 carbon atoms,wherein R3 represents a hydrocarbon group containing 2-9 carbon atoms,wherein n represents an integer in the range of 1-20,wherein the weight ratio between the lubricating base oil and the ester terminated oligomer (oil/oligomer) is larger than 1.2. The grease composition according to claim 1 , comprising:(a) 75 to 90 wt % of the lubricating base oil; and(b) 10 to 25 wt % of the oligomer,wherein all weights are based on the total weight of ...

GREASE COMPOSITIONS AND METHOD FOR MAKING THE SAME

A grease composition comprising a lubricating base oil and a thickener, which thickener comprises an ester-terminated oligomer and a polymer. The polymer is a polyolefin. The ester-terminated oligomer has the general formula: “R1—O—[CO—R2—CO—NH—R3—NH—CO—R2—CO]—O—R1”. “R1” each independently represent a hydrocarbon group containing 4-22 carbon atoms. “R2” represents a hydrocarbon group containing 4-42 carbon atoms. “R3” represents a hydrocarbon group containing 2-9 carbon atoms. “n” represents an integer in the range of 1-20. A method for preparing the present grease composition. The present grease composition can be used for (a) lubricating a mechanical component having a metal surface and (b) protecting a mechanical component having a metal surface against corrosion, wear and/or fretting. 1. A grease composition comprising:a lubricating base oil anda thickener comprising an ester-terminated oligomer and a polymer,wherein the polymer is a polyolefin, {'br': None, 'sub': 'n', 'R1—O—[CO—R2—CO—NH—R3—NH—CO—R2—CO]—O—R1,'}, 'wherein the ester-terminated oligomer has the general formula ofwherein R1 each independently represents a hydrocarbon group containing 4-22 carbon atoms;wherein R2 represents a hydrocarbon group containing 4-42 carbon atoms;wherein R3 represents a hydrocarbon group containing 2-9 carbon atoms;wherein n represents an integer in the range of 1-20.2. The grease composition according to comprising:(a) 75 to 90 wt. % of the lubricating base oil;(b) 1 to 19 wt. % of the ester terminated oligomer; and(c) 1 to 19 wt. % of the polymer which is a polyolefin, all weights based on the total weight of the grease composition.3. The grease composition according to comprising:(a) 76 -84 wt. % of the lubricating base oil;(b) 11-15 wt. % of the ester terminated oligomer; and(c) 5-9 wt. % of the polymer which is a polyolefin, wherein all weights are based on the total weight of the grease composition.4. The grease composition according to claim 1 , wherein n is an ...

HETEROGENEOUS CATALYST FOR TRANSESTERIFICATION AND METHOD OF PREPARING SAME

A transesterification catalyst that is heterogeneous and a method for preparing said transesterification catalyst are provided. The catalyst can be used in a variety of transesterification reactor configurations including CSTR (continuous stirred tank reactors), ebullated (or ebullating) beds or any other fluidized bed reactors, and PFR (plug flow, fixed bed reactors). The catalyst can be used for manufacturing commercial grade biodiesel, biolubricants and glycerin. 2. The compound of claim 1 , wherein the ceramic substrate is selected from the group consisting of zirconia claim 1 , silica claim 1 , alumina claim 1 , and combinations thereof.3. The compound of claim 1 , wherein the total surface area of the compound is 20 square meters per gram or greater.4. The compound of claim 1 , wherein the active surface area of the compound is 20 square meters per gram or greater.5. The compound of claim 1 , wherein the average diameter of the pores in the compound is in the range from 1-10 nanometers.6. The compound of claim 1 , wherein the compound is active at a temperature in the range from 40 to 70 degrees C.7. The compound of claim 1 , wherein the compound is active at a temperature in the range from 40 to 130 degrees C.8. The compound of claim 1 , wherein the transesterification catalyst is porous.9. A method of preparing a transesterification catalyst comprising:mixing a metal hydroxide with the metal selected from the group consisting of potassium, sodium and lithium with a metal hydroxide with the metal selected from the group consisting of calcium, magnesium and barium in a ratio of about 1:10 by weight to form a component mixture;dissolving the component mixture in phosphoric acid;heating the component mixture to a temperature in the range from 60-90 degrees C.;precipitating a solid compound;mixing the precipitate with ceramic substrate in a ratio of about 2:10 by weight and washing with water to form a precipitate/ceramic substrate mixture; andcalcining the ...

REFRIGERATOR OIL AND REFRIGERATOR WORKING FLUID COMPOSITION

The present invention, in one aspect, provides a refrigerating machine oil including a lubricating base oil and a compound represented by the following formula (A): 2. The refrigerating machine oil according to claim 1 , comprising claim 1 , as the lubricating base oil claim 1 , an ester of a polyhydric alcohol and a fatty acid comprising 50 to 100% by mole of a branched fatty acid having 4 to 9 carbon atoms.3. The refrigerating machine oil according to claim 1 , wherein the refrigerant comprises 1 claim 1 ,1 claim 1 ,2-trifluoroethylene as the unsaturated hydrofluorocarbon.4. The refrigerating machine oil according to claim 1 , wherein the refrigerant further comprises a saturated hydrofluorocarbon.6. The working fluid composition for a refrigerating machine according to claim 5 , wherein the refrigerant comprises 1 claim 5 ,1 claim 5 ,2-trifluoroethylene as the unsaturated hydrofluorocarbon.7. The working fluid composition for a refrigerating machine according to claim 5 , wherein the refrigerant further comprises a saturated hydrofluorocarbon.8. The working fluid composition for a refrigerating machine according to claim 5 , wherein the refrigerating machine oil comprises claim 5 , as the lubricating base oil claim 5 , an ester of a polyhydric alcohol and a fatty acid comprising 50 to 100% by mole of a branched fatty acid having 4 to 9 carbon atoms. The present invention relates to a refrigerating machine oil and a working fluid composition for a refrigerating machine.As refrigerants which can be used for refrigerating machines such as refrigerators, car air-conditioners, room air-conditioners, and automatic vending machines, known are saturated hydrofluorocarbon refrigerants (may also be referred to as HFC refrigerants), unsaturated hydrofluorocarbon refrigerants (may also be referred to as HFO refrigerants), and the like.Refrigerating machines are also provided with compressors for circulating refrigerants through their refrigerating cycles. These compressors ...

MOTORCYCLE ENGINE LUBRICANT

The present invention relates to lubricant compositions for motorcycle engines where the crankcase lubricant is also used to lubricate a wet clutch. The lubricant compositions contain antimony dithiocarbamates in combination with one or more ash-free friction modifiers. 1. A method of operating a 4-stroke motorcycle engine equipped with a wet clutch , wherein the crankcase and wet clutch are lubricated with the same lubricant composition , said method comprising supplying to the engine and clutch a lubricant composition comprising(a) an oil of lubricating viscosity,(b) about 0.025 to about 2.5 percent by weight of an antimony dialkyldithiocarbamate compound, and(c) about 0.05 to about 4 percent by weight of an ash-free friction modifier comprising at least one of long chain fatty acid derivatives of amines, long chain fatty esters, derivatives of long chain fatty epoxides, fatty imidazolines; amine salts of alkylphosphoric acids, or fatty esters, amides or imides of hydroxy-carboxylic acids,{'sup': '2', 'wherein the lubricating composition comprises less than 50 weight percent of a synthetic ester having a kinematic viscosity of 5.5 to 25 mm/s when measured at 100° C.'}2. (canceled)3. The method of claim 1 , wherein the lubricating composition further comprises (d) a nitrogen-containing molybdenum compound other than a dithiocarbamate complex.4. The method of claim 3 , wherein the nitrogen-containing molybdenum compound is a molybdenum amine complex.5. The method of claim 1 , wherein the ash-free friction modifier is an ester claim 1 , amide claim 1 , or imide of an alpha-hydroxy carboxylic acid.6. The method of claim 1 , wherein the ash-free the friction modifier is an ester claim 1 , amide claim 1 , or imide of tartaric acid claim 1 , citric acid claim 1 , malic acid claim 1 , lactic acid claim 1 , glycolic acid claim 1 , oligomers of said acids claim 1 , or combinations thereof.7. The method of claim 1 , wherein the ash-free friction modifier is an imide claim 1 ...

Corrosion-Inhibiting Compositions

The invention relates to a composition comprising a) at least one N-methyl-N-acylglucamine of formula (I), wherein R 1 represents a linear or branched, saturated or unsaturated hydrocarbon chain with 7 to 21 carbon atoms, one or more organic acids of formula (II) and/or the salts thereof, R 2 —COOM, wherein R 2 represents a linear or branched alkyl group or a linear or branched mono- or poly-unsaturated alkenyl group with 5 to 29 carbon atoms, and M represents hydrogen or one or more cations, wherein the cations are present in charge-equalizing amounts, and c) one or more alkanolamines of formula (III), wherein NR 1 R 2 R 3 R 1 , R 2 and R 3 represent hydrogen, a linear or branched alkyl group with 1 to 4 carbon atoms, a cycloalkyl group with 5 to 7 carbon atoms, a linear or branched hydroxyalkyl group with 2 to 5 carbon atoms and 1 or 2 hydroxy groups or a hydroxyether group with 2 to 6 carbon atoms, with the provision that at least one of the groups is a hydroxyalkyl group or a hydroxyether group.

Lubricant composition, method for producing lubricant composition, and continuously variable transmission

To provide a lubricating oil composition achieving both of high traction coefficient and excellent low temperature fluidity at a higher level and having a high flash point, which contains a naphthene-based synthetic oil (a) having a flash point of 140° C. or higher, and an ester (b) having 5 to 32 carbon atoms and having a branched chain, wherein the content of the naphthene-based synthetic oil (a) based on the total amount of the composition is 35% by mass or more and less than 80% by mass, a method for producing the lubricating oil composition, and a continuously variable transmission using the lubricating oil composition.

Lubricant comprising a liquid ethylene copolymer

The present invention relates to a lubricant comprising a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate. It further relates to the liquid ethylene copolymer; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.

Gun oil composition

A gun oil composition adapted specifically for the needs and requirements of modern firearms. The gun oil composition improves lubricity and gun performance under normal and extreme heat and pressure, minimizes and largely prevents the build-up of carbon and debris fouling on metal and non-metal components of the firearm, and substantially reduces cleaning time, while providing increased protection against environmental components such as dust, dirt and rust. The gun oil composition can include a base oil having at least a high viscosity index, an oil having at least a medium viscosity index with a detergent additive, a low viscosity penetrating oil, and a sulfurized ester.

REFRIGERATOR OIL COMPOSITION AND REFRIGERATOR

The present invention provides a refrigerating machine oil composition comprising an ester-based base oil, an epoxy compound, and a carbodiimide compound, the refrigerating machine oil composition being used with a refrigerant containing a fluoropropene in a refrigerating machine comprising a member containing polyethylene terephthalate and/or a member containing hydrogenated acrylonitrile butadiene rubber. 1. A refrigerating machine oil composition comprising:an ester-based base oil;an epoxy compound; anda carbodiimide compound,the refrigerating machine oil composition being used with a refrigerant containing a fluoropropene in a refrigerating machine comprising a member containing polyethylene terephthalate and/or a member containing hydrogenated acrylonitrile butadiene rubber.2. The refrigerating machine oil composition according to claim 1 , wherein the ester-based base oil comprises an ester of pentaerythritol and a monocarboxylic fatty acid and/or an ester of dipentaerythritol and a monocarboxylic fatty acid.3. The refrigerating machine oil composition according to claim 1 , wherein the ester-based base oil comprises an ester of pentaerythritol and a mixture of two or more monocarboxylic fatty acids and/or an ester of dipentaerythritol and a mixture of two or more monocarboxylic fatty acids.4. (canceled)5. (canceled)6. A refrigerating machine comprising a refrigerant circulation system containing a compressor claim 1 , a condenser claim 1 , an expansion mechanism claim 1 , and an evaporator claim 1 ,the refrigerant circulation system comprising a member containing polyethylene terephthalate and/or a member containing hydrogenated acrylonitrile butadiene rubber, andthe refrigerant circulation system being filled with a refrigerating machine oil composition comprising an ester-based base oil, an epoxy compound, and a carbodiimide compound and a refrigerant containing a fluoropropene. The present invention relates to a refrigerating machine oil composition, a ...

COOLING AND FLAME-RETARDANT LUBRICATING COMPOSITION FOR A PROPULSION SYSTEM OF AN ELECTRIC OR HYBRID VEHICLE

The present invention relates to a composition for lubricating a propulsion system of an electric or hybrid vehicle, comprising at least one base oil and at least one fire retardant corresponding to formula (I) 116-. (canceled)17. A composition for lubricating a propulsion system of an electric or hybrid vehicle , comprising:at least one base oil; and {'br': None, 'sub': F', 'H, 'R-L-R\u2003\u2003(I),'}, 'at least one fire retardant represented by formula (I) [{'sub': 'F', 'Ris a perfluorinated or partially fluorinated group,'}, {'sub': 'H', 'Ris a hydrocarbon-based group, and'}, 'L is a linker., 'in which,'}18. The composition as claimed in claim 17 , wherein Rincludes between 3 and 22 carbon atoms.19. The composition as claimed in claim 17 , wherein:{'sub': F', '1', '16, 'Ris a perfluorinated or partially fluorinated (C-C)alkyl group, optionally interrupted with one or two heteroatoms chosen from a nitrogen atom and an oxygen atom; and'}{'sub': H', '1', '15', '2', '15', '3', '6, 'Ris a (C-C)alkyl, or (C-C)alkenyl group that is optionally substituted with a (C-C)cycloalkyl, phenyl, or benzyl group.'}20. The composition as claimed in claim 17 , wherein L is chosen from the following divalent groups: —CH— claim 17 , —CH═CH— claim 17 , —O— claim 17 , —S— claim 17 , or —PO—.21. The composition as claimed in claim 17 , wherein the composition comprises the fire retardant in an amount of between 0.5% and 40% by weight claim 17 , relative to the total weight of the composition.22. The composition as claimed in claim 17 , wherein the base oil has a kinematic viscosity ranging from 1.5 to 8 mm/s claim 17 , measured at 100° C. according to the standard ASTM D445.23. The composition as claimed in claim 17 , wherein the base oil is chosen from synthetic oils claim 17 , poly-α-olefins claim 17 , or polyalkylene glycols obtained by polymerization or copolymerization of alkylene oxides comprising from 2 to 8 carbon atoms.24. The composition as claimed in claim 17 , wherein:the ...

Lubricating Oil Composition

Disclosed is a lubricating oil composition comprising: a lubricating base oil comprising 0.5% to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and having a kinematic viscosity at 40° C. of 18 to 28 mm/s; and an organic molybdenum compound in an amount of 100 to 1000 mass ppm in terms of the molybdenum element based on the total amount of the lubricating oil composition, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of 50 mm/s or less. 1. A lubricating oil composition comprising:{'sup': '2', 'a lubricating base oil comprising 0.5% to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and having a kinematic viscosity at 40° C. of 18 to 28 mm/s; and'}an organic molybdenum compound in an amount of 100 to 1000 mass ppm in terms of molybdenum element based on the total amount of the lubricating oil composition, wherein{'sup': '2', 'the lubricating oil composition has a kinematic viscosity at 40° C. 10 of 50 mm/s or less.'}2. The lubricating oil composition according to claim 1 , further comprising 2% by mass or more of a copolymer consisting of an α-olefin and an ester monomer having a polymerizable unsaturated bond based on the total amount of the lubricating oil composition claim 1 , wherein the weight-average molecular weight of the copolymer is 2000 to 20000.3. The lubricating oil composition according to claim 1 , further comprising a boron-containing dispersant in an amount of 100 to 500 mass ppm in terms of boron element based on the total amount of the lubricating oil composition.4. The lubricating oil composition according to claim 1 , wherein the lubricating oil composition is used for a hypoid gear.5. The lubricating oil composition according to claim 1 , wherein the lubricating base oil comprises a synthetic base oil comprising a poly-α-olefin. The present invention relates to a lubricating oil composition.In recent years, in order to cope with ...

DIESTER-BASED BASE OIL BLENDS WITH IMPROVED COLD FLOW PROPERTIES AND LOW NOACK

The present invention is generally directed to diester-based base oils and base oil blends with improved cold flow properties and improved Noack. The diesters employed have a number a performance benefits in lubricant applications—among them: biodegradability, extreme temperature performance, oxidative stability, solubility for additives and deposit and sludge precursors, flash and fire points. However, ester usage in lubricants has been quite limited due to their high cost. We utilize new proprietary diesters, structurally different from traditional diesters, which are made from fatty acids and alpha olefins in simple processing steps, yet feature performance similar to more traditional lubricant esters. 2. The base oil blend of claim 1 , wherein the diester component comprises a mixture of isomers where Rand Rare different for each isomer.3. The base oil blend of claim 1 , further comprising claim 1 , a third base oil.4. The base oil blend of claim 1 , wherein the diester component has a Noack Volatility between about 6 and 10 wt % claim 1 , a CCS Viscosity at −30° C. between about 700 and 2000 cP claim 1 , a pour point less than about −10° C. claim 1 , a cloud point less than about −10° C. claim 1 , a kinematic viscosity at 100° C. between about 2.5 to 6.5 centistokes claim 1 , a VI greater than about 110 and a BN Oxidator greater than about 20 hours.5. The base oil blend of claim 1 , wherein the second base oil is light neutral base oil claim 1 , medium neutral base oil claim 1 , Yubase 4 claim 1 , Yubase 6 claim 1 , 150R claim 1 , 600R claim 1 , 110RLV claim 1 , 220R or 100R.6. The base oil blend of claims 3 , wherein the third base oil is light neutral base oil claims 3 , medium neutral base oil claims 3 , Yubase 4 claims 3 , Yubase 6 claims 3 , 150R claims 3 , 600R claims 3 , 110RLV claims 3 , 220R or 100R.7. The base oil blend of claim 1 , having:a) a viscosity index between about 110 to 140;b) a Noack volatility of less than about 16 wt %;c) a Pour Point ...

BASE OIL BLEND UPGRADING PROCESS WITH A DIESTER BASE OIL TO YIELD IMPROVED COLD FLOW PROPERTIES AND LOW NOACK

The present invention is generally directed to diester-based base oils and base oil blends with improved cold flow properties and improved Noack. The diesters employed have a number a performance benefits in lubricant applications—among them: biodegradability, extreme temperature performance, oxidative stability, solubility for additives and deposit and sludge precursors, flash and fire points. However, ester usage in lubricants has been quite limited due to their high cost. We utilize new proprietary diesters, structurally different from traditional diesters, which are made from fatty acids and alpha olefins in simple processing steps, yet feature performance similar to more traditional lubricant esters. 3. The process of claim 1 , further comprising a diester component that comprises a mixture of isomers where Rand Rare independently different for each isomer.4. The process of claim 1 , wherein the starting base oil or starting base oil blend comprises a Group I base oil claim 1 , Group II base oil or Group III base oil.5. The process of claim 1 , wherein the upgraded base oil blend comprises at least one of light neutral base oil claim 1 , medium neutral base oil claim 1 , Yubase 4 claim 1 , Yubase 6 claim 1 , 150R claim 1 , 600R claim 1 , 110RLV claim 1 , 100R and 220R.6. The process of claim 1 , wherein the diester component has a Noack Volatility between about 6 and 10 wt % claim 1 , a pour point less than about −10° C. claim 1 , a CCS Viscosity at −30° C. between about 700 and 2000 cP claim 1 , a cloud point less than about −10° C. claim 1 , a kinematic viscosity at 100° C. between about 2.5 to 6.5 centistokes claim 1 , a VI greater than about 110 and a BN Oxidator greater than about 20 hours.7. The process of claim 1 , wherein the upgraded base oil blend has:a) a viscosity index between about 110 to 140;b) a Noack volatility of less than about 16 wt %;c) a Pour Point less than about −12° C.; andd) a Cloud Point less than about −12° C.8. The process of claim ...

DIESTER-BASED ENGINE OIL FORMULATIONS WITH IMPROVED LOW NOACK AND COLD FLOW PROPERTIES

The present invention is generally directed to diester-based multi-grade engine oil formulations. The diesters employed have a number a performance benefits in lubricant applications—among them: biodegradability, extreme temperature performance, oxidative stability, solubility for additives and deposit and sludge precursors, flash and fire points. However, ester usage in lubricants has been quite limited due to their high cost. We utilize new proprietary diesters, structurally different from traditional diesters, which are made from fatty acids and alpha olefins in simple processing steps, yet feature performance similar to more traditional lubricant esters. 2. The multi-grade engine oil of claim 1 , wherein a quantity of at least one diester species comprises a mixture of isomers where Rand Rare different for each isomer.3. The multi-grade engine oil of claim 1 , further comprising claim 1 , a third base oil.4. The multi-grade engine oil of claim 1 , wherein the diester has a Noack Volatility between about 6 and 10 wt % claim 1 , a CCS Viscosity at −30° C. between about 700 and 2000 cP claim 1 , a pour point less than about −10° C. claim 1 , a cloud point less than about −10° C. claim 1 , a kinematic viscosity at 100° C. between about 2.5 to 6.5 centistokes claim 1 , a VI greater than about 110 and a BN Oxidator greater than about 20 hours.5. The multi-grade engine oil according to or claim 1 , wherein the second base and third base oil are independently selected from the group consisting of light neutral base oil claim 1 , medium neutral base oil claim 1 , Yubase 4 claim 1 , Yubase 6 claim 1 , 150R claim 1 , 600R claim 1 , 110RLV claim 1 , 220R and 100R.6. The multi-grade engine oil of claim 1 , meeting the specifications for SAE viscosity grade 0W-XX or 5W-XX claim 1 , wherein XX represents the integer 16 claim 1 , 20 claim 1 , 30 claim 1 , or 40.7. The multi-grade engine oil of claim 1 , wherein the multi-grade engine oil meets the SAE J300 standards as revised ...

LUBRICATING OIL COMPOSITION PROVIDING WEAR PROTECTION AT LOW VISCOSITY

Provided is a lubricating oil comprising: (a) a major amount of an oil of lubricating viscosity, (b) a dispersant polymethacrylate (DPMA) VII, (c) a non-dispersant ethylene-based olefin copolymer viscosity index improver, (d) a magnesium containing detergent; wherein the lubricating oil composition is substantially free of molybdenum containing element. Also provided is a method for improving friction and reducing wear in an internal combustion engine using said engine lubricating oil composition. 1. A lubricating oil composition having a HTHS viscosity at 150° C. in a range of about 1.3 to about 2.9 cP , comprising:{'sup': '2', 'a) a major amount of an oil of lubricating viscosity having a kinematic viscosity at 100° C. in a range of 1.5 to 6.0 mm/s;'}b) a dispersant polymethacrylate (DPMA) VII having a Mw of from 200,000 g/mol to 450,000 g/mol;c) a non-dispersant ethylene-based olefin copolymer viscosity index improver having a Mw of from 50,000 g/mol to 150,000 g/mol and a total ethylene content of about 30 wt % to about 70 wt %; 'wherein the lubricating oil composition is substantially free of molybdenum containing element.', 'd) from about 200 to about 1000 ppm of magnesium from a magnesium containing detergent; and'}2. The lubricating oil composition of claim 1 , further comprising from 1 to 10 wt. %. of an ester base oil.3. The lubricating oil composition of claim 1 , wherein the magnesium containing detergent is a magnesium salicylate derived from a C-Cisomerized normal alpha olefin.4. The lubricating oil composition of claim 1 , wherein the non-dispersant ethylene-based olefin copolymer viscosity index improver has a total ethylene content of about 55 to 65 wt. %.5. The lubricating oil composition of claim 1 , wherein the non-dispersant ethylene-based olefin copolymer viscosity index improver has a Mw of from 70 claim 1 ,000 g/mol to 110 claim 1 ,000 g/mol.6. The lubricating oil composition of claim 1 , wherein the a dispersant polymethacrylate (DPMA) VII ...

REFRIGERANT COMPRESSOR AND FREEZER/REFRIGERATOR INCLUDING SAME

Inside a sealed container () of a refrigerant compressor (), lubricating oil () having a kinematic viscosity at 40° C. of 0.1 mm/S to 5.1 mm/S is stored, and an electric element () and a compression element () are accommodated. The compression element () is provided with, as a shaft part, a crankshaft () comprising a main shaft () and an eccentric shaft (), and as bearing parts, a main bearing () that axially supports the main shaft () and an eccentric bearing () that axially supports the eccentric shaft (). At least one surface of the main shaft () and the eccentric shaft () is subjected to a surface treatment, e.g., formation of an oxide film, having a hardness equal to or greater than that of a bearing part (the main bearing () or the eccentric bearing ()). Satisfactory reliability in sliding parts can thereby be achieved even if lubricating oil having lower viscosity is used. 1. A refrigerant compressor which reserves lubricating oil having kinetic viscosity of 0.1 to 5.1 mm/S at 40 C in a sealed container , and accommodates therein an electric component , and a compression component which is driven by the electric component and compresses a refrigerant , wherein: as a shaft portion, a crank shaft including a main shaft and an eccentric shaft and', 'as a bearing portion supporting the shaft portion, a main bearing supporting the main shaft and an eccentric bearing supporting the eccentric shaft; and, 'the compression component includes'}a treated surface having hardness equal to or more than hardness of the bearing portion is formed on at least one of a surface of the main shaft and a surface of the eccentric shaft.2. The refrigerant compressor according to claim 1 , wherein:a base material of the shaft portion is an iron-based material; andthe treated surface is an oxide film.3. The refrigerant compressor according to claim 2 , wherein the oxide film includes claim 2 , on an outermost surface thereof claim 2 , at least one of a portion containing diiron ...

LUBRICANT FOR POWDER METALLURGY AND METAL POWDER COMPOSITIONS CONTAINING SAID LUBRICANT

A particulate composite lubricant for powder metallurgy is provided. It includes: first discrete particles comprising Montan acid ester wax and at least one fatty amide wax including at least one of: a fatty primary monoamide wax and a fatty bisamide wax. In another embodiment, the particulate composite lubricant for powder metallurgy includes first discrete particles comprising Montan acid ester wax and second discrete particles comprising an organic, metal-free pulverulent lubricant selected from the group consisting of fatty bisamide waxes, fatty monoamide waxes, glycerides, Montan acid ester waxes, paraffin wax, polyolefines, polyamides, polyesters, and mixtures thereof, wherein the particulate composite lubricant comprises at least one fatty amide wax including at least one of a fatty monoamide wax and a fatty bisamide wax. 1. A particulate composite lubricant for powder metallurgy comprising: first discrete particles comprising Montan acid ester wax and at least one fatty amide wax including at least one of: a fatty primary monoamide wax and a fatty bisamide wax.2. The particulate composite lubricant as claimed in claim 1 , further comprising second discrete particles comprising an organic claim 1 , metal-free pulverulent lubricant selected from the group consisting of fatty bisamide waxes claim 1 , fatty monoamide waxes claim 1 , glycerides claim 1 , Montan acid ester waxes claim 1 , paraffin wax claim 1 , polyolefines claim 1 , polyamides claim 1 , polyesters claim 1 , and mixtures thereof.3. The particulate composite lubricant as claimed in claim 1 , wherein the first discrete particles are at least partially coated with metal oxide nanoparticles.4. The particulate composite lubricant as claimed in claim 1 , wherein the fatty bisamide wax comprises ethylene bisstearamide.5. The particulate composite lubricant as claimed in claim 4 , further comprising second discrete particles comprising erucamide.6. The particulate composite lubricant as claimed in claim 5 ...

DRILLING FLUID FOR DOWNHOLE ELECTROCRUSHING DRILLING

The disclosure relates to an electrocrushing drilling fluid with an electrocrushing drilling base fluid including a non-polar oil, water, and glycerin. The base fluid may further include a polar oil and an alkylene carbonate. The electrocrushing drilling fluid may further contain at least one additive. The electrocrushing drilling fluid may have a dielectric constant or dielectric strength of at least a set amount, an electric conductivity less than a set amount, or a combination of these properties. The disclosure further relates to an electrocrushing drilling system containing the electrocrushing drilling fluid and an electrocrushing drill bit. 1. An electrocrushing drilling fluid comprising a electrocrushing drilling base fluid comprising at least one of water , an alkylene carbonate , and a polar oil , wherein the electrocrushing drilling base fluid has a dielectric constant of at least 6 at 100 kHz frequency.2. The electrocrushing drilling fluid further comprising non-polar oil , glycerin , or a combination thereof.3. The electrocrushing drilling fluid of claim 1 , wherein the electrocrushing drilling base fluid has a dielectric strength of at least 100 kV/cm at 10 microseconds rise time.4. The electrocrushing drilling fluid of claim 1 , wherein the electrocrushing drilling base fluid has an electric conductivity of less than 10mho/cm.5. The electrocrushing drilling fluid of claim 1 , wherein the electrocrushing drilling base fluid has an oil:water ratio between 50:50 and 99:1 (v:v).6. The electrocrushing drilling fluid of claim 1 , wherein the polar oil comprises a vegetable oil claim 1 , an ester oil claim 1 , or any combinations thereof.7. The electrocrushing drilling fluid of claim 1 , wherein the alkylene carbonate comprises butylene carbonate claim 1 , propylene carbonate claim 1 , or any combinations thereof.8. The electrocrushing drilling fluid of claim 1 , wherein the non-polar oil comprises a mineral oil claim 1 , a diesel oil or fuel claim 1 , a ...

COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

To provide a composition for a heat cycle system having favorable lubricating properties and comprising a working fluid for heat cycle which has a low global warming potential and which can replace R410A and a heat cycle system employing the composition. A composition for a heat cycle system comprising a working fluid for heat cycle containing trifluoroethylene, and a refrigerant oil (for example, an ester refrigerant oil, an ether refrigerant oil, a polyglycol refrigerant oil or a hydrocarbon refrigerant oil), and a heat cycle system employing the composition for a heat cycle system. 1. A composition for a heat cycle system , comprising: a working fluid for heat cycle; and a refrigerant oil , wherein the working fluid for a heat cycle comprises trifluoroethylene (HFO-1123) , difluoromethane (HFC-32) , and (E)-1 ,3 ,3 ,3-tetrafluoropropene (HFO-1234ze(E)) in amounts of:{'br': None, '10 mass %≤HFO-1123≤80 mass %;'}{'br': None, '10 mass %≤HFC-32≤75 mass %; and'}{'br': None, 'i': ze', 'E, '5 mass %≤HFO-1234()≤60 mass %.'}2. The composition for a heat cycle system according to claim 1 , wherein the refrigerant oil is at least one member selected from an ester refrigerant oil claim 1 , an ether refrigerant oil claim 1 , a polyglycol refrigerant oil and a hydrocarbon refrigerant oil.3. The composition for a heat cycle system according to claim 2 , wherein the refrigerant oil is at least one member selected from a dibasic acid ester claim 2 , a polyol ester claim 2 , a complex ester claim 2 , a polyol carbonate ester claim 2 , a polyvinyl ether claim 2 , a polyalkylene glycol and an alkylbenzene.4. The composition for a heat cycle system according to claim 1 , wherein the kinematic viscosity of the refrigerant oil at 40° C. is from 1 to 750 mm/s.5. The composition for a heat cycle system according to claim 1 , wherein the kinematic viscosity of the refrigerant oil at 100° C. is from 1 to 100 mm/s.6. The composition for a heat cycle system according to claim 1 , wherein a ...

LUBRICATING GREASE COMPOSITION

A lubricating grease composition containing a base oil having a kinematic viscosity of 10 mm/s or more and 60 mm/s or less at 40° C.; a thickener containing at least one soap selected from a metal soap and a metal complex soap; and a solid lubricant containing porous polyamide particles. An amount of the porous polyamide particles blended is 1% by mass or more and 20% by mass or less based on a total mass of the lubricating grease composition. 1. A lubricating grease composition comprising:{'sup': 2', '2, 'a base oil having a kinematic viscosity of 10 mm/s or more and 60 mm/s or less at 40° C.;'}a thickener containing at least one soap selected from the group consisting of a metal soap and a metal complex soap; anda solid lubricant containing porous polyamide particles,wherein an amount of the porous polyamide particles blended is 1% by mass or more and 20% by mass or less based on a total mass of the lubricating grease composition.2. The lubricating grease composition according to claim 1 , wherein the porous polyamide particles have a specific surface area of 2.0 m/g or more and an average particle diameter of 1 μm or more and 30 μm or less.3. The lubricating grease composition according to claim 1 , wherein the thickener is at least one soap selected from the group consisting of a lithium soap and a lithium complex soap.4. The lubricating grease composition according to claim 1 , wherein the base oil contains at least one synthetic oil selected from the group consisting of a synthetic hydrocarbon oil claim 1 , an ester-based synthetic oil claim 1 , an ether-based synthetic oil claim 1 , and a glycol-based synthetic oil.5. The lubricating grease composition according to claim 1 , wherein the base oil contains at least one synthetic hydrocarbon oil selected from the group consisting of poly-α-olefin claim 1 , an ethylene-α-olefm oligomer claim 1 , an ethylene-α-olefin copolymer claim 1 , polybutene claim 1 , alkylbenzene claim 1 , and alkyl naphthalene.6. The ...

COOLANT COMPRESSOR AND REFRIGERATION DEVICE USING SAME

A refrigerant compressor comprises an electric component; and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material. An oxide coating film () is provided on a slide surface of the iron-based material, the oxide coating film including a first portion (), a second portion (), and/or a third portion (). The first portion () contains at least fine crystals (). The second portion () contains columnar grains (). The third portion () contains layered grains (). 1. A refrigerant compressor comprising:an electric component; anda compression component which is driven by the electric component and compresses a refrigerant,wherein at least one of slide members included in the compression component is made of an iron-based material, and an oxide coating film is provided on a slide surface of the iron-based material, the oxide coating film including a first portion containing at least fine crystals, a second portion containing columnar grains, and/or a third portion containing layered grains.2. The refrigerant compressor according to claim 1 ,wherein the oxide coating film comprises at least the first portion located in an outermost surface of the oxide coating film, the second portion located under the first portion, and the third portion located under the second portion.3. The refrigerant compressor according to claim 1 ,wherein the first portion has a crystal grain size in a range of 0.001 to 1 μm, andwherein the crystal grain size of the first portion is smaller than the crystal grain size of the second portion.4. The refrigerant compressor according to claim 1 ,wherein the first portion includes at least a first a portion and a first b portion which are different from each other in crystal density.5. The refrigerant compressor according to claim 4 ,wherein the first a portion is located closer to an outermost surface of the oxide ...

Lubricant composition

An object of the present invention is to provide a lubricant composition having excellent lubrication properties in rigorous conditions such as a high temperature and/or a high pressure. The present invention relates to lubricant composition containing a condensate A which is obtained by condensing at least: an alkylene oxide adduct a1 of trihydric or more polyhydric alcohol formed by adding alkylene oxide to at least one hydroxyl group of the trihydric or more polyhydric alcohol; a divalent or more polyvalent carboxylic acid a2 or a precursor of the divalent or more polyvalent carboxylic acid a2; and at least one of a monovalent carboxylic acid a3, a precursor of the monovalent carboxylic acid a3, or monohydric alcohol a4.

HIGH CONDUCTIVITY FLUID FOR AIR COMPRESSOR APPLICATIONS

The disclosed technology relates to a lubricant composition containing a polyalkylene glycol in which greater than 50% of the repeating units in the polyalkylene glycol contain an alkylene oxide derived moiety comprising a C4 or greater alkyl group. The lubricant compositions are particularly useful in compressors, such as a reciprocating rotary vane, scroll, or rotary screw air compressor. 1. A lubricant composition comprising:(a) at least one oil of lubricating viscosity, and{'sub': 4', '4', '4, '(b) at least one Cor greater polyalkylene glycol, wherein greater than 50% of the repeating units in said at least one Cor greater polyalkylene glycol contain an alkylene oxide derived moiety comprising Cor greater alkyl.'}2. The lubricant of claim 1 , wherein less than 50% of the repeating units in said at least one Cor greater polyalkylene glycol contain an alkylene oxide derived moiety comprising at least one C claim 1 , C claim 1 , Calkyl group or combinations thereof.3. The lubricant of claim 1 , wherein said Cor greater polyalkylene glycol of component (b) is soluble in the oil of lubricating viscosity.41. The lubricant of clami claim 1 , wherein said Cor greater polyalkylene glycol of component (b) is present at 5 percent by weight or greater.5. The lubricant of claim 1 , further comprising at least one Cto Cpolyalkylene glycol claim 1 , wherein greater than 50% of the repeat units in said at least one Cto Cpolyalkylene glycol contains an alkylene oxide derived moiety comprising at least one of a C claim 1 , C claim 1 , or Calkyl group or combination thereof.6. The lubricant of claim 5 , wherein the ratio of the at least one Cor greater polyalkylene glycol to the at least one Cto Cpolyalkylene glycol is from about 1:1 to about 10:1 by weight.7. The lubricant of wherein the oil of lubricating viscosity comprises a mineral oil base oil.8. The lubricant of wherein the oil of lubricating viscosity comprises an ester base oil.9. The lubricant of claim 8 , wherein the ...

Lubricating oil composition for transmissions

A lubricating oil composition for transmissions having improved fuel saving properties, excellent metal fatigue prevention properties, and heat resistance containing: a lubricating base oil containing (A) a mineral base oil having a 100° C. kinematic viscosity of 1.5 mm 2 /s or higher and 3.5 mm 2 /s or lower, a pour point of −25° C. or lower, a viscosity index of 105 or greater, a % C p of 85 or greater, a % C N of 2 or greater and 20 or less and a % C A of 3 or less and (B) a monoester-based base oil having a 100° C. kinematic viscosity of 2 to 10 mm 2 /s; (C) a phosphorus acid ester; and (D) a boronated ashless dispersant, the ratio of the mass percent of boron to the mass percent of phosphorus in the composition (B/P) being from 0.07 to 0.42, and the composition having a 100° C. kinematic viscosity of 2.5 to 4.0 mm 2 /s is described.

Multigrade crankcase lubricating oil compositions

An SAE 0W-30 or 5W-30 or 5W-20 lubricant has a Noack volatility of less than 15, optionally an M-111 fuel economy of 1.5% or less, and a chlorine content of less than 100 ppm. The lubricant comprises a basestock containing from 0 to less than 10% Group I and/or Group II basestocks, a molybdenum additive providing not greater than 1000 ppm of molybdenum to the lubricant, a calcium detergent providing 10 or greater mmoles of surfactant per kilogram of lubricant, one or more other additives, and a viscosity modifier.

Process to prepare a heavy and a light lubricating base oil

Process to prepare a heavy and a light lubricating base oil from a partly isomerised Fischer-Tropsch derived feedstock (1), said feedstock having an initial boiling point of below 400 °C and a final boiling point of above 600 °C by (a) separating, by means of distillation, said fraction into a light base oil precursor fraction and a heavy base oil precursor fraction, (b) reducing the pour point of each separate base oil precursor fraction by means of dewaxing, (c) and isolating the desired base oil products from said dewaxed oil fractions as obtained in step (b).

Synthetic lubricating oil and lubricating oil composition thereof

Lubricating oil composition for automobile gears and method for producing same

[Problem] To provide a lubricating oil composition for automobile gears, which has an excellent balance among shear stability, temperature viscosity characteristics and low-temperature viscosity characteristics at high levels, while having excellent stability of thermal oxidation resistance. [Solution] A lubricating oil composition for automobile gears, which contains a lubricant base oil and a liquid random copolymer of ethylene and an α-olefin, said random copolymer being produced using a specific catalyst, and which is configured such that: the kinematic viscosity at 100°C is 7-30 mm2/s; and the lubricant base oil is composed of a mineral oil that has a kinematic viscosity at 100°C of 2-10 mm2/s, a viscosity index of 105 or more and a pour point of -10°C or less and/or a synthetic oil that has a kinematic viscosity at 100°C of 1-10 mm2/s, a viscosity index of 120 or more and a pour point of -30°C or less.

Lubricating oil composition and method for producing same

The present invention provides a lubricating oil composition containing a polymer for improving viscosity, the polymer having little decrease in viscosity due to shear, keeping viscosity elevation at low temperatures low, and having exceptional low-temperature characteristics. The present invention is a lubricating oil composition characterized by containing: 30-90 wt% of a liquid random copolymer (A) of ethylene and an α-olefin, the copolymer being produced by through specific method; and 10-70 wt% of a lubricating oil base comprising one or more components selected from specific synthetic oils (B) or mineral oils (C) (where the total of components (A), (B), and (C) is 100 wt%).

Base stock lubricant blends

A method of improving air release is disclosed. The method comprises obtaining a lubricant comprising two base stocks. The first base stock comprises a viscosity greater than 100 cSt, Kv100° C. The second base stock comprises a viscosity less than 10 cSt, Kv100° C. In addition, a lubricant formulation and method of blending a lubricant formulation is also disclosed. The lubricant formulation comprises at least two base stocks. At least 5 percent and no more than 90 percent of a first base stock comprising oil with a viscosity greater than 300 cSt, Kv100° C. At least 5 percent and no more than 90 percent of a second base stock comprising oil with a viscosity less than 10 cSt, Kv100° C.

Low sulfur and low metal additive formulations for high performance industrial oils

An additive package, lubricant formulation with the additive package and method of improving gear lubricant properties with the additive package are disclosed. The additive package comprises at least one antiwear additive, at least one antioxidant additive, at least one rust inhibitor additive, at least one metal passivator additive, at least one demulsifier additive, at least one defoamant additive wherein the composition has less than 3.5% phosphorous, less than 1.7% ppm nitrogen, less than 1000 ppm sulfur, less than 100 ppm metals and a TAN of less than 1.

High viscosity metallocene catalyst PAO novel base stock lubricant blends

A lubricant formulation and method of blending a lubricant formulation is disclosed. The lubricant formulation comprises at least two base stocks. The first base stock comprises a viscosity greater than 40 cSt, Kv100° C. and a tight molecular weight distribution as a function of viscosity. The second base stock comprises a viscosity less than 10 cSt, Kv100° C. The lubricant formulation provides favorable properties.

Gear oil compositions

A novel lubricant composition is disclosed. In one embodiment the lubricant composition comprises in admixture: a first base stock component comprising one or more base stocks each having a viscosity of at least 40 cSt, Kv100° C. and a molecular weight distribution (MWD) as a function of viscosity at least 10 percent less than algorithm: MWD=0.2223+1.0232*log (Kv at 100° C. in cSt); and a second base stock component comprising one or more base stocks each having a viscosity less than 10 cSt, Kv100° C.

Low Sulfur and Low Metal Additive Formulations for High Performance Industrial Oils

An additive package, lubricant formulation with the additive package and method of improving gear lubricant properties with the additive package are disclosed. The additive package comprises at least one antiwear additive, at least one antioxidant additive, at least one rust inhibitor additive, at least one metal passivator additive, at least one demulsifier additive, at least one defoamant additive wherein the composition has less than 3.5% phosphorous, less than 1.7% ppm nitrogen, less than 1000 ppm sulfur, less than 100 ppm metals and a TAN of less than 1.

Foaming agents and compositions containing fluorine substituted olefins, and methods of foaming

Various uses of fluoroalkenes, including tetrafluoropropenes, particularly (HFO-1234) in a variety of applications, including as blowing agents are disclosed.

Fluorinated lubricants

Fluorinated lubricants of formula T-O-[A-B]z-[A-B']z'-A-T' (I) wherein: A = -(X)a-O-A'-(X')b- A' is a perfluoropolyether chain comprising units (CF2O), (CF2CF2O), (CF2CF2CF2O), (CF2CF2CF2CF2O); X, X' = -CF2-, -CF2CF2-; a, b = 0 or 1; B derives from olefins, of which at least one homopolymerizable by radical route, of formula: -[(CR1R2-CR3R4)j(CR5R6-CR7R8)j']- (Ia) wherein j = 1-5, j'= 0-4 and 2 <(j+j')< 5; R1-R8 = halogen, H, C1-C6 (per)haloalkyl, C1-C6 alkyl, C1-C6 oxy(per)-fluoroalkyl; z ≥ 2; z' is 0 or an integer; z, z' are such that the number average molecular weight of the polymer of formula (I) is in the range 500-500,000; B'= (Ia) but at least one of R1-R8 has a meaning different than that in B and 2 ≤(j+j')< 5; T, T' = C1-C3 perfluoroalkyl, C1-C6 alkyl and compositions thereof.

Slideway Lubricant Compositions, Methods of Making and Using Thereof

A slideway lubricant composition is provided. The composition comprises a sufficient amount of an isomerized base oil having consecutive numbers of carbon atoms and has less than 10 wt % naphthenic carbon by n-d-M for the composition to separate from water in less than 60 minutes at 54° C. as measured according to ASTM D-1401-2002. In one embodiment, the composition contains none if little demulsifying additives. In another embodiment, the composition meets machine tool and pneumatic tool builders, including but not limited to Cincinnati Milacron Specifications of P47, P50 and P53 for Grades 68, 220 and 32.

Novel Base Stock Lubricant Blends

A method of improving air release is disclosed. The method comprises obtaining a lubricant comprising two base stocks. The first base stock comprises a viscosity greater than 100 cSt, Kv100° C. The second base stock comprises a viscosity less than 10 cSt, Kv100° C. In addition, a lubricant formulation and method of blending a lubricant formulation is also disclosed. The lubricant formulation comprises at least two base stocks. At least 5 percent and no more than 90 percent of a first base stock comprising oil with a viscosity greater than 300 cSt, Kv100° C. At least 5 percent and no more than 90 percent of a second base stock comprising oil with a viscosity less than 10 cSt, Kv100° C.

Lubricating oil composition for hydraulic oil and method for producing same

[Problem] To provide a lubricating oil composition for hydraulic oil, the composition having very exceptional temperature-viscosity characteristics as well as exceptional heat and oxidation stability. [Solution] This lubricating oil composition for hydraulic oil contains: 10-99 mass% of a lubricating oil base oil (A) having a kinematic viscosity at 100°C of 1-14 mm 2 /s, a viscosity index of 100 or greater, and a pour point of 0°C or less; and 90-1 mass% of a liquid random copolymer (B) of ethylene and an α-olefin, the copolymer being produced using a specific catalyst (the total of (A) and (B) being 100 mass%). The lubricating oil composition moreover has a kinematic viscosity at 100°C of 10-300 mm 2 /s.

润滑油组合物及其制造方法

本发明提供润滑油组合物，其含有将低温时的粘度上升抑制在低水平、低温特性优异、且由剪切引起的粘度降低少的粘度改良用聚合物。本发明为润滑油组合物，其特征在于，含有30～90重量％的由特定的方法制造的乙烯与α‑烯烃的液态无规共聚物(A)和10～70重量％的润滑油基剂(其中，将(A)、(B)及(C)成分的总量作为100重量％)，所述润滑油基剂包含选自特定的合成油(B)或矿物油(C)中的1种以上的成分。

Lubricating composition

A lubricating composition is provided containing: a high viscosity synthetic hydrocarbon such as high viscosity polyalphaolefins, liquid hydrogenated polyisoprenes or ethylene-alphaolefin copolymers having a viscosity of 40-1000 centistokes at 100° C.; a low viscosity synthetic hydrocarbon and/or optionally a low viscosity ester; and optionally an additive package to impart desirable performance properties to the composition.

Lubricating composition and a sliding member comprising the composition

Disclosed herein are a solid lubricating composition comprising a solid lubricant, a lubricating oil which is in a liquid or paste form at an ordinary temperature, a carrier for absorbing and possessing said lubricating oil, and a thermosetting synthetic resin binder, and a sliding member comprising a metal substrate and a solid lubricant composed of the lubricating composition.

Isoparaffinic lube basestock compositions

A liquid hydrocarbon composition, containing paraffinic hydrocarbon components in which the extent of branching, as measured by the percentage of methyl hydrogens (BI), and the proximity of branching, as measured by the percentage of recurring methylene carbons which are four or more carbons removed from an end group or branch (CH2>4), are such that: (a) BI-0.5(CH2>4)>15; and (b) BI+0.85(CH2>4)<45 as measured over said liquid hydrocarbon composition as a whole.

Lubricating composition

ABSTRACT A lubricating composition is provided containing: a high viscosity synthetic hydrocarbon such as a high viscosity polyalphaolefin, a liquid hydrogenated polyisoprene or an ethylene-alphaolefin copolymer having a viscosity of 40-1000 centistopes at 100°C; a low viscosity synthetic hydrocarbon and/or optionally a low viscosity ester; and optionally an additive package to impart desirable performance properties to the composition.

Base stocks and lubricant blends containing poly-alpha olefins

This disclosure relates to substantially atactic polymers of at least one of propylene, 1-butene or 1-pentene, processes for making such polymers and compositions including the polymers. The polymers may be used as lubricants or may be combined with low viscosity base stocks to form lubricants. The polymers may be made in the presence of a metallocene catalyst with a non-coordinating anion activator and optionally with hydrogen.

Base stocks and lubricant blends containing poly-alpha olefins

This disclosure relates to substantially atactic polymers of at least one of propylene, 1-butene or 1-pentene, processes for making such polymers and compositions including the polymers. The polymers may be used as lubricants or may be combined with low viscosity base stocks to form lubricants. The polymers may be made in the presence of a metallocene catalyst with a non-coordinating anion activator and optionally with hydrogen.

Refrigerant compressor

A refrigerant compressor includes a hermetic container storing refrigerant oil an electrically-driven element and a compressing element driven by the electrically-driven element. The compressing element includes a cylinder block having a cylindrical compression chamber and a cylindrical piston reciprocating in the compression chamber. The compression chamber and the piston have a diameter difference in the range of not shorter than 4 micrometers to not longer than 15 micrometers. The refrigerant oil has viscosity of 8 mm2/s or less at 40 degrees Celsius and is prepared by mixing a first refrigerant oil having viscosity of less than 8 mm2/s at 40 degrees Celsius with a second refrigerant oil having viscosity of 20 mm2/s or more at 40 degrees Celsius.