Heavy Metal Or Aluminum Naphthenate, In Combination With An Organic Nitrogen, Sulfur, Or Phosphorus Compound Patents (Class 508/385)
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Publication number: 20140107004Abstract: A lubricant composition comprising (a) from 0.1 to 10 percent by weight of one or more polyalkylene glycols (PAG); and (2) one or more ester base oils selected from the group of natural esters, synthetic esters and combinations thereof; wherein the one or more PAG has a molecular weight in the range 1500 to 5000 g/mole, comprises from 10 to 40 percent by weight of units derived from ethylene oxide and from 90 to 60 percent by weight of units derived from propylene oxide; and wherein the one or more PAGs are in the form of block copolymer, reverse block copolymer or combinations thereof is provided. Also provided is a method of enhancing the hydrolytic stability of an ester base oil.Type: ApplicationFiled: June 8, 2012Publication date: April 17, 2014Applicant: Dow Global Techologies LLCInventors: Nadjet Khelidj, Martin R. Greaves, Evelyn A. Zaugg-Hoozemans
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Patent number: 8557751Abstract: The lubricating oil composition contains a base oil, a phosphate ester derivative represented by a formula (1) below and a zinc compound. An element ratio (Zn/P) between zinc (Zn) and phosphorus (P) in the lubricating oil composition is 0.55 or more at a mole ratio. In the formula, Y represents S (sulfur) or O (oxygen); R1 represents an organic group having 4 to 24 carbon atoms; R2 represents a divalent organic group having 1 to 6 carbon atoms; and n represents an integer of 1 to 3.Type: GrantFiled: April 25, 2008Date of Patent: October 15, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hirotaka Yamasaki, Motoharu Ishikawa
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Patent number: 8211840Abstract: 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: GrantFiled: December 9, 2008Date of Patent: July 3, 2012Assignee: Afton Chemical CorporationInventors: Mark T. Devlin, John T. Loper, Roger M. Sheets, Gregory H. Guinther, Jeffrey M. Guevremont
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Publication number: 20120142566Abstract: The invention provides a grease composition containing a base oil, a thickener and an additive, characterized in that the base oil has a kinetic viscosity at 40° C. of 50 to 200 mm2/s; the thickener contains a diurea compound represented by formula (I): R1—NHCONH—R2—NHCONH—R3 (wherein R2 is a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R1 and R3, which may be the same or different, represent cyclohexyl group or a straight-chain or branched alkyl group having 8 to 22 carbon atoms); and the additive is at least one selected from the group consisting of a metal salt of naphthenic acid, a salt of a fatty acid having 6 to 10 carbon atoms and an aliphatic amine having 6 to 10 carbon atoms, and a metal salt of an organic sulfonic acid. The composition of the invention shows excellent anti-fretting properties under the conditions of ordinary temperature to low temperature (e.g., ?50° C., preferably about ?40° C.).Type: ApplicationFiled: August 10, 2010Publication date: June 7, 2012Inventor: Masamichi Yamamoto
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Patent number: 7935663Abstract: Novel molybdenum compounds are prepared by reacting a hindered amine with a molybdenum source, in the presence of one of (a) water, (b) a diol and water, and (c) the reaction product of a fatty oil and a multifunctional amine, and water. Lubricant compositions containing these new compounds are more stabilized against oxidation and have improved friction reducing properties. Synergy is observed when the novel compounds are combined with a diaryl amine in a lubricant composition.Type: GrantFiled: March 3, 2008Date of Patent: May 3, 2011Assignee: R. T. Vanderbilt Company, Inc.Inventors: Kevin J. Chase, John M. DeMassa, Brian W. Stunkel, Glenn A. Mazzamaro
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Publication number: 20100152076Abstract: A Lubricant comprises a carboxylic-acid-amide which is based on aliphatic unbranched, alicylic and/or aromatic chains with chain lengths from 2 to 60 carbon atoms.Type: ApplicationFiled: November 23, 2005Publication date: June 17, 2010Applicant: AB SKFInventors: Ebbe Malmstedt, Walter Holweger, Hurbertus Peek, Ingemar Strandell, Arno Stubenrauch, Bernhard Bauer, Frank Fiddelaers, Albert Van Den Kommer
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Publication number: 20100126461Abstract: The lubricating oil composition contains a base oil, a phosphate ester derivative represented by a formula (1) below and a zinc compound. An element ratio (Zn/P) between zinc (Zn) and phosphorus (P) in the lubricating oil composition is 0.55 or more at a mole ratio. In the formula, Y represents S (sulfur) or O (oxygen); R1 represents an organic group having 4 to 24 carbon atoms; R2 represents a divalent organic group having 1 to 6 carbon atoms; and n represents an integer of 1 to 3.Type: ApplicationFiled: April 25, 2008Publication date: May 27, 2010Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Hirotaka Yamasaki, Motoharu Ishikawa
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Publication number: 20090069205Abstract: Lubricated surfaces, lubricant compositions for lubricating a surface, and methods for increasing antiwear properties in lubricants. 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 amount of at least one hydrocarbon soluble titanium compound effective to provide an increase in antiwear properties of the lubricant composition. A ratio of titanium metal to phosphorus in the antiwear agent ranges from about 0.3:1 to about 1.5:1.Type: ApplicationFiled: September 10, 2007Publication date: March 12, 2009Inventors: Mark T. DEVLIN, Kenneth J. Garelick, Naresh C. Mathur, Jeffrey M. Guevremont
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Publication number: 20080277203Abstract: A method and compositions for lubricating surfaces with lubricating oils exhibiting increased phosphorous retention. The lubricated surface includes a lubricant composition containing a base oil of lubricating viscosity, an amount of a phosphorus-containing compound and an amount of at least one hydrocarbon soluble titanium compound effective to provide an increase in phosphorus retention of the lubricant composition greater than an increase in phosphorus retention of the lubricant composition devoid of the hydrocarbon soluble titanium compound.Type: ApplicationFiled: May 8, 2007Publication date: November 13, 2008Inventor: Gregory H. GUINTHER
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Publication number: 20080223330Abstract: A lubricated surface, a method for reducing wear between moving parts, and lubricants, and lubricant additive concentrates containing a wear reducing agent. The lubricated surface contains a base oil of lubricating viscosity, a hydrocarbon soluble titanium compound, a metal-free friction modifier and an amount of at least one hydrocarbon soluble magnesium compound effective to provide a reduction in surface wear greater than a reduction surface wear for a lubricant composition devoid of the titanium compound, metal-free friction modifier, and magnesium compound. The lubricant composition contains no more than about 800 ppm phosphorus and is devoid of calcium detergents and organic molybdenum compound.Type: ApplicationFiled: March 15, 2007Publication date: September 18, 2008Inventors: William Y. Lam, Mark T. Devlin
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Patent number: 6919300Abstract: A protective lubricating composition is provided which will penetrate readily to closely fitting frictional parts and form a protective non-migrating lubricating film improving lubrication between the moving parts reducing friction and wear and preventing corrosion. The lubricant composition may be combined with solvents and propellants to make a sprayable lubricant composition.Type: GrantFiled: July 2, 2002Date of Patent: July 19, 2005Assignee: Ashland Inc.Inventors: Michael A. Dituro, Richard J. Baumgart, Mandeep S. Saini, Christopher J. Nonevski
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Patent number: 6429175Abstract: A lubricating grease composition including the combination of an oil base, a thickener, and bismuth preferably in the form of a bismuth carboxylate. The grease has excellent film strength, improved “anti-washout” capabilities, and, depending on the thickener used, may have no dropping point, meaning that the oil will not separate out at elevated temperatures.Type: GrantFiled: November 20, 2000Date of Patent: August 6, 2002Assignee: New Age Chemical, Inc.Inventors: James A. Stuart, Jr., Douglas A. Wallace
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Publication number: 20020082175Abstract: The present invention is to provide a rolling bearing suitable for the use under a high temperature, high speed, high load and high vibration condition, having a good rust-preventive performance and the excellent flaking life without a hazard to a human body. A rolling bearing is described, comprising an inner race, an outer race and rolling elements, with a grease composition comprising, as the main components, a base oil, a thickener and at least one kind of a rust-preventive additive made from a naphthenate or a succinic acid derivative, packed in a bearing space formed by at least the inner race, the outer race and the rolling elements, said at least one kind of a rust-preventive additive is present in an amount of 0.1 to 10% by weight based on the total amount of the grease composition.Type: ApplicationFiled: January 3, 2002Publication date: June 27, 2002Applicant: NSK LTD.Inventors: Kenichi Iso, Atsushi Yokouchi, Michiharu Naka
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Publication number: 20010034306Abstract: The present invention is to provide a rolling bearing suitable for the use under a high temperature, high speed, high load and high vibration condition, having a good rust-preventive performance and the excellent flaking life without a hazard to a human body. A rolling bearing is described, comprising an inner race, an outer race and rolling elements, with a grease composition comprising, as the main components, a base oil, a thickener and at least one kind of a rust-preventive additive made from a naphthenate or a succinic acid derivative, packed in a bearing space formed by at least the inner race, the outer race and the rolling elements, said at least one kind of a rust-preventive additive is present in an amount of 0.1 to 10% by weight based on the total amount of the grease composition.Type: ApplicationFiled: February 22, 2001Publication date: October 25, 2001Inventors: Kenichi Iso, Atsushi Yokouchi, Michiharu Naka
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Patent number: 6265360Abstract: The present invention relates to a wax-containing liquid hydrocarbon fuel composition comprising (a) at least one wax-containing liquid hydrocarbon; and b) a transesterified acrylate polymer obtained by transesterifying a starting acrylate polymer with at least one higher alcohol, the transesterified acrylate polymer being present in an amount sufficient to modify the cold flow properties of the wax containing liquid hydrocarbon fuel.Type: GrantFiled: November 12, 1999Date of Patent: July 24, 2001Assignee: The Lubrizol CorporationInventors: Marvin B. DeTar, Richard M. Lange, John S. Manka
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Patent number: 6022835Abstract: A lubricating composition comprising a base oil in combination with molybdenum dithiocarbamate, zinc naphthenate and one or more metal dithiophosphates, and optionally one or more metal dithiocarbamates. A lubricating grease comprising such a composition in combination with a thickener, is particularly suitable for lubricating constant velocity joints.Type: GrantFiled: October 12, 1998Date of Patent: February 8, 2000Assignee: Shell Oil CompanyInventor: Robert Anthony Fletcher
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Patent number: 5650380Abstract: A lubricating composition is disclosed comprising a base oil of mineral and/or synthetic origin in combination with molybdenum disulfide, zinc naphthenate and one or more metal dithiophosphates, and optionally one or more metal dithiocarbamates. A lubricating grease comprising such a composition in combination with a thickener, which may be a urea compound, a simple lithium soap or a lithium complex, is particularly suitable for lubricating constant velocity joints such as constant velocity ball joints.Type: GrantFiled: June 14, 1996Date of Patent: July 22, 1997Assignee: Shell Oil CompanyInventor: Robert Anthony Fletcher
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Patent number: 5631212Abstract: A lubricating oil composition having improved fuel economy, wear resistance and antioxidancy properties which comprise a lubricating oil basestock, an oil-soluble copper salt, an oil-soluble molybdenum salt, a Group II metal salicylate and a borated polyalkenyl succinimide.Type: GrantFiled: January 19, 1996Date of Patent: May 20, 1997Assignee: Exxon Research and Engineering CompanyInventor: Elisavet P. Vrahopoulou
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Patent number: 5576273Abstract: This invention relates to synergistic extreme pressure compositions comprising (1) an alkylenebis(dihydrocarbyldithiocarbamate) compound and (2) a bismuth compound selected from the group consisting of bismuth carboxylates, bismuth dihydrocarbyldithiocarbamates and bismuth dihydrocarbylphosphorodithioates.Lubricating compositions containing the synergistic compositions possess good extreme pressure properties.Type: GrantFiled: November 20, 1995Date of Patent: November 19, 1996Assignee: R.T. Vanderbilt Company, Inc.Inventors: Thomas J. Karol, Steven G. Donnelly, Ronald J. Hiza
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Patent number: RE38929Abstract: There is disclosed a lubricating oil composition which contains from about 100 to 450 parts per million of molybdenum from a molybdenum compound which is substantially free of active sulfur and about 750 to 5,000 parts per million of a secondary diarylamine. This combination of ingredients provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant.Type: GrantFiled: June 26, 2000Date of Patent: January 3, 2006Assignee: Afton Chemical Intangibles LLCInventors: Vincent James Gatto, Mark Thomas Devlin
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Patent number: RE40595Abstract: There is disclosed a lubricating oil composition which contains from about 100 to 450 parts per million of molybdenum from a molybdenum compound which is substantially free of active sulfur and about 750 to 5,000 parts per million of a secondary diarylamine. This combination of ingredients provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant.Type: GrantFiled: May 20, 2005Date of Patent: December 2, 2008Assignee: Afton Chemical Intangibles LLCInventors: Vincent James Gatto, Mark Thomas Devlin