With Organic Phosphorus Compound That Does Not Contain Zinc Patents (Class 508/377)
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Patent number: 11732208Abstract: The disclosed technology relates to a lubricant composition for automotive gears, axles and bearings, the lubricant composition containing an oil of lubricating viscosity and a metal thiophosphate compound, such as zinc dialkyldithiophosphate, as well as a method of obtaining extreme pressure performance in automotive gears, axles and bearings at lower sulfur content than is typical, by lubricating such automotive gears, axles and bearings with a lubricant composition containing a metal thiophosphate compound, such as zinc dialkyldithiophosphate.Type: GrantFiled: August 1, 2019Date of Patent: August 22, 2023Inventors: William R. S. Barton, Brian B. Filippini
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Lubricating oil composition for sliding section comprising aluminum material, and lubricating method
Patent number: 9040470Abstract: Provided are a lubricant composition capable of reducing friction between sliding parts at least one of which contains an aluminum-based material in a lubrication section, and a method for lubricating an aluminum-based member with the composition. The lubricant composition is for use in a lubrication section having sliding parts at least one of which contains an aluminum-based material, and contains a lubricant base oil and at least one of a phosphorus-containing carboxylic compound and a metal salt thereof (component (A)) at 0.001 to 1 mass % of the composition in terms of phosphorus. The composition may suitably be used as lubricant such as drive train lubricant for automatic or manual transmissions, grease, wet brake oil, hydraulic actuation oil, turbine oil, compressor oil, bearing oil, refrigerant oil, and the like used in apparatus having the sliding parts.Type: GrantFiled: July 26, 2011Date of Patent: May 26, 2015Assignee: JX NIPPON OIL & ENERGY CORPORATIONInventor: Kazuhiro Yagishita -
Publication number: 20140309150Abstract: A lubricant composition and a method of lubricating off-road vehicles and/or machinery. The lubricant composition includes (i) a base oil, (ii) at least one ashless component (A) having the structure P(?S)(SR1)(OR2)(OR3), wherein R1, R2 and R3 are independently selected form the group consisting of alkyl, aryl, alkylaryl, cycloalkyl, alcohol, carboxylic acid and ester having 1 to 24 carbon atoms; and (iii) at least one component (B) being a metal dialkyl dithio phosphate salt. The total of ashless components (A) provides to the lubricant composition from 0.010 to 0.080 wt. % phosphorus based on the total weight of the lubricant composition and the total of components (B) provides to the lubricant composition from 0.010 to 0.080 wt. % phosphorus based on the total weight of the lubricant composition.Type: ApplicationFiled: April 11, 2013Publication date: October 16, 2014Applicant: Afton Chemical CorporationInventor: Jonathan W. BENDER
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LUBRICATING OIL COMPOSITION FOR SLIDING SECTION COMPRISING ALUMINUM MATERIAL, AND LUBRICATING METHOD
Publication number: 20130237463Abstract: Provided are a lubricant composition capable of reducing friction between sliding parts at least one of which contains an aluminum-based material in a lubrication section, and a method for lubricating an aluminum-based member with the composition. The lubricant composition is for use in a lubrication section having sliding parts at least one of which contains an aluminum-based material, and contains a lubricant base oil and at least one of a phosphorus-containing carboxylic compound and a metal salt thereof (component (A)) at 0.001 to 1 mass % of the composition in terms of phosphorus. The composition may suitably be used as lubricant such as drive train lubricant for automatic or manual transmissions, grease, wet brake oil, hydraulic actuation oil, turbine oil, compressor oil, bearing oil, refrigerant oil, and the like used in apparatus having the sliding parts.Type: ApplicationFiled: July 26, 2011Publication date: September 12, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventor: Kazuhiro Yagishita -
Patent number: 8071801Abstract: Provided is a phosphorus molybdenum amine compound, represented by the following general formula (I). where R1 to R6 each independently represent a hydrogen atom or a hydrocarbon group and p represents a number of 1 to 5, provided that all of R1 to R6 are can not all be hydrogen atoms at the same time and the phosphorus molybdenum compound is obtained by reducing a hexavalent molybdenum compound with a reducing agent, and then reacting the resulting with an acidic phosphate after neutralization with a mineral acid.Type: GrantFiled: July 3, 2007Date of Patent: December 6, 2011Assignee: Adeka CorporationInventors: Yukio Tatsumi, Kazuhiro Umehara, Kenji Yamamoto
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Publication number: 20100144563Abstract: Lubricated surfaces and lubricant compositions for lubricating a surface. The lubricated surface is provided by a lubricant composition including a base oil of lubricating viscosity, at least one metal salt of phosphorothioic acid, and an ashless, sulfur-free organophosphorus compound providing a metal to phosphorus weight ratio ranging from about 0.25:1 to about 1.0:1 by weight. The lubricant composition is substantially devoid of molybdenum.Type: ApplicationFiled: December 9, 2008Publication date: June 10, 2010Applicant: AFTON CHEMICAL CORPORATIONInventors: Mark T. DEVLIN, John T. LOPER, Roger M. SHEETS, Gregory H. GUINTHER, Jeffrey M. GUEVREMONT
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Publication number: 20040176260Abstract: Lubricating oil compositions for internal combustion engines comprises a mineral and/or synthetic base oil, (A) a succinimide-based ashless dispersant in an amount of 0.08 to 0.40 percent by mass in terms of nitrogen, (B) a metallic detergent in an amount of 0.06 to 0.22 percent by mass in terms of metal element, (C) a zinc secondary alkyldithiophosphate in an amount of 0.04 to 0.08 percent by mass in terms of phosphorus, and (D) a phosphorus-containing ashless anti-wear agent in an amount of 0.01 to 0.04 percent by mass in terms of phosphorus and contains sulfated ashes derived from the metal elements in the composition in an amount of 0.3 to 1.0 percent by mass. The lubricating oil compositions are excellent in anti-wear properties and high-temperature detergency although they are decreased in ash content.Type: ApplicationFiled: March 15, 2004Publication date: September 9, 2004Applicant: Nippon Oil CorporationInventors: Shinichi Shirahama, Yasuhisa Yamada, Isao Kurihara
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Patent number: 6774092Abstract: Disclosed is an additive composition that can be mixed with various types of basic oils to produce a lubricant that can meet the international standards of manual truck gearbox oils. A preferred embodiment includes various quantities of an isobutylene sulfide, zinc dialklydithiophosate and other components. Component properties of the additive composition are selected to produce a lubricant that has good thermal stability, rust-resisting and endurance qualities and that has a low cost of use and production.Type: GrantFiled: August 16, 2002Date of Patent: August 10, 2004Assignee: PetroChina Company, Ltd.Inventors: Xisheng Fu, Xiuling Hua
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Patent number: 6696393Abstract: Disclosed are methods and lubricant compositions for reducing wear in internal combustion engines lubricated with a low phosphorus content lubricating oil. The lubricant compositions of this invention comprise a synergistic combination of a complex of a molybdenum/nitrogen containing compound and at least one phosphorus-containing compound wherein the total phosphorus employed in the composition is no more than about 0.06 weight percent based on the total weight of the composition.Type: GrantFiled: August 1, 2002Date of Patent: February 24, 2004Assignee: Chevron Oronite Company LLCInventor: Alexander B. Boffa
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Patent number: 6656887Abstract: Lubricating oil compositions comprise a lubricating base oil and (A) at least one compound selected from the group consisting of compounds represented by formula (1) below and compounds represented by formula (2) below: wherein R2, R1, R3 and R4 are each independently hydrogen or a hydrocarbon group having 1 to 30 carbon atoms, X1, X2, X3 and X4 are each independently oxygen or sulfur, but at least one of them is oxygen, and Y1 is a metal atom; and wherein R11 and R12 are each independently hydrogen or a hydrocarbon group having 1 to 30 carbon atoms, X11 and X12are each independently oxygen or sulfur, but at least one of them is oxygen, U is a monovalent metal ion, an ammonium ion or a proton, and k1 is an integer of 1 to 20. Lubricating oil compositions have excellent anti-wear properties and base number maintaining properties.Type: GrantFiled: January 23, 2002Date of Patent: December 2, 2003Assignee: Nippon Mitsubishi Oil CorporationInventors: Kazuhiro Yagishita, Jinichi Igarashi, Takeo Koizumi
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Publication number: 20030045436Abstract: Disclosed is an additive composition that can be mixed with various types of basic oils to produce a lubricant that can meet the international standards of manual truck gearbox oils. A preferred embodiment includes various quantities of an isobutylene sulfide, zinc dialklydithiophosate and other components. Component properties of the additive composition are selected to produce a lubricant that has good thermal stability, rust-resisting and endurance qualities and that has a low cost of use and production.Type: ApplicationFiled: August 16, 2002Publication date: March 6, 2003Inventors: Xisheng Fu, Xiuling Hua
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Patent number: 6503872Abstract: This invention relates to a manual transmission lubricants comprising a major amount of an oil of lubricating viscosity, (A) at least one metal thiophosphate, (B) at least one phosphite, and (C) at least one basic salt of an acidic organic compound. In another embodiment, the manual transmission further comprises at least metal salt of a phenol. The lubricants provide the antiwear and extreme pressure protection needed for the manual transmission without harming the manual transmission components.Type: GrantFiled: August 22, 2000Date of Patent: January 7, 2003Assignee: The Lubrizol CorporationInventor: Joseph A. Tomaro
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Patent number: 6187723Abstract: A lubricant composition is described, particularly for engine oils, comprising a base oil of viscosity from 3 to 26 cSt (mm2/s) at 100° C. and an antiwear additive combination comprising (a) an oil soluble or oil dispersible phosphorus-free organo-molybdenum compound, (b) an ashless, sulfur-containing organo-phosphorus compound, and optionally (c) a zinc thiophosphate compound selected from one or more of zinc dialkyldithiophosphate, zinc diaiyldithiophosphate, zinc alkylaiyldithiophosphate and zinc arylalkyldithiophosphate. The molybdenum compound may be a carbamate, e.g., MoDTC but is preferably nitrogen-free, e.g., a carboxylate.Type: GrantFiled: December 12, 1997Date of Patent: February 13, 2001Assignee: Exxon Research and Engineering CompanyInventors: David Gary Lawton Holt, Patrick Desmond Fraser Vernon, John Ian Atherton
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Patent number: 6074993Abstract: A lubricating oil composition exhibiting improved fuel economy and wet clutch friction properties, which comprises: (a) an oil of lubricating viscosity; (b) at least one calcium or magnesium overbased detergent; (c) an oil soluble dimeric molybdenum compound; (d) an oil soluble organic trinuclear molybdenum compound; (e) at least one zinc dihydrocarbyldithiophosphate compound, wherein the composition has a TBN of at least 3.6 from the calcium or magnesium overbased detergent, a NOACK volatility of about 15 wt. % or less, molybdenum in an amount up to about 350 ppm from the trinuclear molybdenum compound, molybdenum in an amount up to 2,000 ppm from the dimeric molybdenum compound, and phosphorus in an amount up to about 0.1 wt. % from a zinc dihydrocarbyldithiophosphate compound.Type: GrantFiled: October 25, 1999Date of Patent: June 13, 2000Assignee: Infineuma USA L.P.Inventors: Malcolm Waddoups, Rolfe J. Hartley, Taisuke Miyoshi
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Patent number: 5952273Abstract: A grease composition for constant velocity joints comprising: (a) a base oil; (b) a diurea thickener of the formula (1):R.sup.1 NH--CO--NH--C.sub.6 H.sub.4 -p-CH.sub.2 --C.sub.6 H.sub.4 -p-NH--CO--NHR.sup.2wherein R.sup.1 and R.sup.2 may be the same or different and represent aryl groups having 6 or 7 carbon atoms or cyclohexyl groups; (c) a molybdenum dialkyldithiocarbamate; (d) molybdenum disulfide; (e) at least one extreme pressure agent selected from the group consisting of zinc dithiophosphates, and sulfur-nitrogen extreme pressure agents; and (f) a phosphorus-free sulfur extreme pressure agent. The grease composition has low coefficient of friction, good performance for reducing induced thrust and high durability.Type: GrantFiled: March 25, 1998Date of Patent: September 14, 1999Assignees: Kyodo Yushi Co., Ltd,, NTN CorporationInventors: Yoichi Suzuki, Takashi Okaniwa, Yukio Asahara, Keizo Nagasawa, Mitsuhiro Kakizaki, Kiyoshi Takeuchi, Yukio Hasegawa, Shinichi Takabe
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Patent number: 5726132Abstract: This invention relates to compositions for improving fuel efficiency in internal combustion engines. The composition comprises a lubricant having an oil of lubricating viscosity and (A) a compound represented by the formula ##STR1## wherein in Formula (A-I), R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrocarbyl groups, X.sup.1 and X.sup.2 are independently O or S, and n is zero to 3; and (B) an acylated nitrogen-containing compound having a substituent of at least 10 aliphatic carbon atoms. In one embodiment, the inventive composition further comprises (C) a second phosphorus compound other than (A), said second phosphorus compound being a phosphorus acid, phosphorus acid ester, phosphorus acid salt, or derivative thereof. In one embodiment, the inventive composition further comprises (D) an alkali or alkaline earth metal salt of an organic sulfur acid, carboxylic acid or phenol. In one embodiment, the inventive composition further comprises (E) a thiocarbamate.Type: GrantFiled: February 28, 1997Date of Patent: March 10, 1998Assignee: The Lubrizol CorporationInventors: Stephen H. Roby, James A. Supp, John S. Manka, William D. Abraham
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Patent number: 5712230Abstract: This invention relates to a composition, comprising: (AT) reaction products of compounds represented by the formula (A)and compounds selected to reduce the polysulfide components of (A); and ##STR1## wherein in Formula (A), R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrocarbyl groups, X.sup.1 and X.sup.2 are independently O or S, and n is zero to 3 (B) an acylated nitrogen-containing compound having a substituent of at least 10 aliphatic carbon atoms. In one embodiment, the inventive composition further comprises (C) a second phosphorus compound other than (A), said second phosphorus compound being a phosphorus acid, phosphorus acid ester, phosphorus acid salt, or derivative thereof. In one embodiment, the inventive composition further comprises (D) an alkali or alkaline earth metal salt of an organic sulfur acid, carboxylic acid or phenol.Type: GrantFiled: March 10, 1997Date of Patent: January 27, 1998Assignee: The Lubrizol CorporationInventors: William D. Abraham, John S. Manka, Stephen H. Roby, James A. Supp
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Patent number: 5674820Abstract: This invention relates to a composition, comprising: (A) a compound represented by the formula ##STR1## wherein in Formula (A-I), R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrocarbyl groups, X.sup.1 and X.sup.2 are independently O or S, and n is zero to 3; and (B) an acylated nitrogen-containing compound having a substituent of at least 10 aliphatic carbon atoms, In one embodiment, the inventive composition further comprises (C) a second phosphorus compound other than (A), said second phosphorus compound being a phosphorus acid, phosphorus acid ester, phosphorus acid salt, or derivative thereof, In one embodiment, the inventive composition further comprises (D) an alkali or alkaline earth metal salt of an organic sulfur acid, carboxytic acid or phenol. In one embodiment, the inventive composition further comprises (E) a thiocarbamate. These compositions are useful in providing lubricating compositions and functional fluids with enhanced antiwear properties.Type: GrantFiled: September 5, 1996Date of Patent: October 7, 1997Assignee: The Lubrizol CorporationInventors: John S. Manka, William D. Abraham, Stephen H. Roby, James A. Supp, Craig D. Tipton
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Patent number: 5595962Abstract: A lubricant composition is disclosed which provides good antiwear characteristics in air at .gtoreq.100.degree. C. and exhibits a low friction coefficient, said composition comprising:(A) a fluorosilicone oil;(B) at least one compound selected from the group consisting of ferrocene, 1,1'-bis(diphenylphosphino) ferrocene and an N,N-disalicylidene-diaminoalkane in which the alkane portion has 3-6 carbon atoms; and(C) at least one phosphorous compound selected from the group consisting of triphenylphosphine, tri-o-tolylphosphine, 1,5-bis-diphenylphosphinopentane and a dialkyldithiophosphate salt in which the alkyl groups have 1-14 carbon atoms, wherein said components (B) and said component (C) is each present at a level of 0.01 to 0.3 percent based on the total weight of said composition.Type: GrantFiled: January 16, 1996Date of Patent: January 21, 1997Assignee: Dow Corning CorporationInventors: Gerardo Caporiccio, Hugh A. Spikes