Phosphorus Acid Salt With Metal Or Ammonia (e.g., Overbased Or Carbonated Phosphorus Acids, Etc.) Patents (Class 508/435)
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Patent number: 11898119Abstract: A lubricating oil composition comprising greater than 50 wt. % of a base oil of lubricating viscosity, and an additive composition comprising: an amount of one or more zinc dialkyl dithiophosphates (ZDDP compounds) and an amount of one or more viscosity modifiers, wherein an amount of phosphorus (P) in weight percent provided to the lubricating oil composition by the one or more ZDDP compounds divided by the amount of the one or more viscosity modifiers (VM) in weight percent based on a total weight of the lubricating oil composition is a P/VM quotient of more than about 0.0075. The lubricating oil composition can improve resistance to engine deposits and extend oil drain intervals of an internal combustion engine.Type: GrantFiled: January 25, 2022Date of Patent: February 13, 2024Assignee: AFTON CHEMICAL CORPORATIONInventors: Todd Dvorak, Kenneth Garelick, Mark Devlin
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Patent number: 11884892Abstract: An organometallic phosphorus-providing antiwear additive and a lubricating composition including the organometallic phosphorus-providing antiwear additive having improved copper corrosion performance obtained by reacting an organic hydroxy compound with phosphorus pentasulfide to form a reaction product, distilling the reaction product and recovering a condensate, and neutralizing the condensate with a basic or neutral metal compound including one or more of a metal oxide, a metal hydroxide, or a metal carbonate to form the organometallic phosphorus-providing antiwear additive or salt thereof.Type: GrantFiled: March 31, 2023Date of Patent: January 30, 2024Assignee: Afton Chemical CorporationInventors: Brandon Knouse, David Edwards, Magdalena Makowska, Keith Hayes, Gregory James
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Patent number: 11702609Abstract: A method for improving lubricating performance of lubricating oils is provided and includes: adding copper phosphate with a porous structure into a base oil, a mass percent of the copper phosphate with the porous structure to the base oil is 0.0001% ˜50%, the porous structure is one of a foam porous structure and a porous nanoflower structure. The copper phosphate with the porous structure is obtained by adding a divalent copper salt solution into an alkaline disodium hydrogen phosphate solution or alkaline phosphoric acid buffer solution and then separating a precipitate. When a ratio of a concentration of a divalent copper ion to that of a phosphate ion is 1:0.1 to 400, the porous structure is porous foam or nanoflower. The porous structure can be well dispersed in the lubricating oil for 1 hour. After adding the lubricating oil, excellent friction reduction and anti-wear is achieved.Type: GrantFiled: June 21, 2022Date of Patent: July 18, 2023Assignee: WUHAN RESEARCH INSTITUTE OF MATERIALS PROTECTIONInventors: Haitao Duan, Linlin Duan, Dan Jia, Shengpeng Zhan, Tian Yang, Jiesong Tu
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Patent number: 11485926Abstract: The present invention provides a refrigerating machine oil comprising a lubricating base oil and at least one selected from the group consisting of an amine salt of phosphonic acid and an amine salt of phosphonic acid monoester, and a method for producing the same.Type: GrantFiled: January 21, 2020Date of Patent: November 1, 2022Assignee: ENEOS CORPORATIONInventors: Yohei Shono, Tatsuki Nakajima, Shogo Hashimoto, Yuya Mizutani, Hidetoshi Ogata
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Patent number: 10036463Abstract: A robot includes a first member, a second member that is provided so as to be movable around the first member, and a gear device that transmits driving force from one of the first member and the second member to the other. The gear device includes a contact portion where two surfaces come into contact with each other and a lubricant, which is disposed on the contact portion and of which a change rate of worked penetration caused by a worked stability test is within a range of ?16% to +16% inclusive.Type: GrantFiled: September 22, 2017Date of Patent: July 31, 2018Assignee: Seiko Epson CorporationInventor: Masanao Kunugi
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Patent number: 9587197Abstract: A processing fluid that is free of boron and secondary amines includes a petroleum-based or non-petroleum-based oil; water; and an additive composition comprising a long chain primary amine; an tertiary cycloalkylamine; and an amino acid.Type: GrantFiled: February 3, 2014Date of Patent: March 7, 2017Assignee: FUCHS PETROLUB SEInventors: Michael P. Duncan, D. James Deodhar, Gema del Olmo Tomás, Heinz Gerhard Theis, Paul Roger Littley
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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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Publication number: 20140171348Abstract: A composition including an ionic liquid alkylammonium salt (e.g., tetraalkylammonium cation and bis(2-ethylhexyl)phosphate anion), or an ionic liquid imidazolium salt (e.g., 1,3-dialkylimidazolium cation and bis(2-ethylhexyl)phosphate anion), that have a structure sufficient to exhibit at least partial solubility in one or more Group I-V base stocks. The disclosure also relates to a lubricating oil base stock and lubricating oil containing the composition, a multifunctional functional fluid containing the composition, and a method for improving solubility of an ionic liquid in a lubricating oil by using as the lubricating oil a formulated oil including a lubricating oil base stock as a major component, and an ionic liquid alkylammonium salt cobase stock, or an ionic liquid imidazolium salt cobase stock, as a minor component.Type: ApplicationFiled: November 14, 2013Publication date: June 19, 2014Applicant: ExxonMobil Research and Engineering CompanyInventors: Abhimanyu Onkar Patil, Satish Bodige, Tezcan Guney
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Patent number: 8673829Abstract: It is an object of the present invention to provide a grease composition (7) which can be used for a long term in a wide temperature range from low to high temperatures by using comparatively inexpensive base oil. It is another object of the present invention to provide a rolling bearing and a universal joint in which the grease composition (7) is enclosed. The grease composition (7) is composed of base grease, consisting of base oil and a thickener, to which an additive is added. The base oil contains not less than 50 wt % of highly refined oil having a viscosity index of 120 to 180. The additive contains at least ZnDTP and 0.2 to 6 parts by weight of poly (metha) acrylate having a kinematic viscosity of not less than 100 mm2/s and less than 850 mm2/s at 100° C. for 100 parts by weight of the base grease. The grease composition (7) is enclosed in the circumferences of rolling elements (4) of a rolling bearing (1).Type: GrantFiled: September 3, 2009Date of Patent: March 18, 2014Assignee: NTN CorporationInventor: Takayuki Kawamura
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Patent number: 8586517Abstract: A lubricant composition. The lubricant composition includes (a) a phenate, a sulfonate, or both; and (b) a base composition wherein the base composition is (i) a metal carbonate and a metal sulfate, (ii) a metal sulfate and a metal phosphate; (iii) a metal sulfate and a metal carboxylate; (iv) a metal phosphate and a metal carboxylate; or (v) three-way or four-way combination of a metal sulfate, a metal carboxylate, a metal phosphate, and a metal carbonate; and (c) a lubricating oil or a grease.Type: GrantFiled: May 3, 2006Date of Patent: November 19, 2013Assignee: Southwest Research InstituteInventor: John A. Waynick
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Publication number: 20130252865Abstract: A lubricating oil composition comprising a major amount of oil of lubricating viscosity and a minor amount of one or more compounds of formula (I): wherein R1, R2, R3, R4 and R5 independently represent alkyl or substituted alkyl having no aryl substituent.Type: ApplicationFiled: September 21, 2012Publication date: September 26, 2013Inventors: Joseph P. Hartley, Gabriele Candido
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Patent number: 8361941Abstract: The present invention relates to an antiwear agent and lubricating compositions thereof. The invention further provides for a method of lubricating a driveline device or a grease application by employing a lubricating composition containing the antiwear agent.Type: GrantFiled: June 6, 2011Date of Patent: January 29, 2013Assignee: The Lubrizol CorporationInventor: Charla A. Ramsey
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Publication number: 20120329688Abstract: The present invention relates to a method of driveline device by supplying to the driveline device a lubricating composition containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes: (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) a phosphorus compound. The invention further provides lubricating compositions containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) an amine or metal salt of a phosphorus compound that is either (i) a hydroxy-substituted di-ester of (thio)phosphoric acid, or (ii) a phosphorylated hydroxy-substituted di- or tri-ester of (thio)phosphoric acid.Type: ApplicationFiled: September 6, 2012Publication date: December 27, 2012Applicant: THE LUBRIZOL CORPORATIONInventor: Morey N. Najman
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Patent number: 8309500Abstract: Novel non-aqueous water soluble food grade lubricant compositions comprising: (a) About 5% to about 50% of a polyalkylene glycol comprised of an ethylene oxide/propylene oxide copolymer, or polymer of propylene oxide, having molecular weight greater than 1,500; and (b) About 50% to about 95% of a polyethylene glycol having molecular weight of from about 200 to about 600; wherein said lubricating compositions have viscosities of about 28 to about 100% at 40° C. The novel non-aqueous water soluble food grade lubricant compositions are particularly useful in food processing and packaging equipment applications where low viscosity food grade lubricants with low pour points are desired, and in applications where there is a need for equipment and spill cleanup. These food grade lubricant compositions are also environmentally friendly due to their water solubility, rapid biodegradability, and low aquatic toxicity.Type: GrantFiled: July 13, 2005Date of Patent: November 13, 2012Assignee: Dow Global Technologies LLCInventors: Daryl L. Beatty, Martin R. Greaves
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Publication number: 20120220506Abstract: The present invention relates to a lubricating composition containing an oil of lubricating viscosity and a star polymer that has at least two inner blocks, at least one of which is in turn bonded to one or more outer blocks. The invention further relates to methods of lubricating a mechanical device with the lubricating composition.Type: ApplicationFiled: February 2, 2012Publication date: August 30, 2012Applicant: THE LUBRIZOL CORPORATIONInventors: Haihu Qin, Marina Baum, John R. Johnson
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Publication number: 20120142565Abstract: The present invention relates to a lubricating composition containing a sulphur-free metal salt of a hydrocarbyl-substituted phosphorus compound and an organo-sulphide. The composition has a sulphur content of greater than 0.3 weight percent of sulphur. The invention further provides for a method of lubricating a driveline device by using a lubricating composition.Type: ApplicationFiled: February 9, 2012Publication date: June 7, 2012Applicant: THE LUBRIZOL CORPORATIONInventors: James N. Vinci, Michael E. Huston, Denise R. Vermilya, Charla A. Ramsey, Roger L. Sowerby
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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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Patent number: 7696137Abstract: A lubricating oil composition is disclosed which comprises a lubricating base oil, (A) at least one type of compound selected from specific phosphoric acid esters and salts thereof or in combination with (B) at least one type of compound selected from specific metal salts of specific phosphoric acid esters, with excellent oxidation stability, base number retention properties, anti-wear properties, extreme pressure properties and anti-corrosion properties and thus can be suitably used, in particular, as a lubricating oil for an internal combustion engine.Type: GrantFiled: February 15, 2005Date of Patent: April 13, 2010Assignee: Nippon Oil CorporationInventor: Kazuhiro Yagishita
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Publication number: 20100005829Abstract: The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound which containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000 and one or more kinds of phosphorous compound selected from a phosphate having 25 or more carbon atoms, a phosphite having 10 to 60 carbon atoms, an amine salt of phosphate having 10 to 60 carbon atoms, and a metal salt of phosphate having to 60 carbon atoms. The lubricating oil for a compression type refrigerator of the present invention has high compatibility and high viscosity index, and is excellent in anti-seizure property and also in stability under carbon dioxide atmosphere.Type: ApplicationFiled: September 21, 2007Publication date: January 14, 2010Applicant: Idemitsu Kosan Co., Ltd.Inventors: Masato Kaneko, Harutomo Ikeda
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Publication number: 20090042752Abstract: A lubricant composition is disclosed. The lubricant composition is made up of (a) ashless dispersant; (b) metal-containing detergent; (c) a phosphorus-containing compound; (d) rust inhibitor; and (e) basestock, wherein the lubricant composition has a concentration of phosphorus less than or equal to 0.08 weight %.Type: ApplicationFiled: August 9, 2007Publication date: February 12, 2009Inventors: Malcolm Waddoups, George C. L'Heureux
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Publication number: 20080103072Abstract: The present invention relates to a lubricating composition containing a sulphur-free metal salt of a hydrocarbyl-substituted phosphorus compound and an organo-sulphide. The composition has a sulphur content of greater than 0.3 weight percent of sulphur. The invention further provides for a method of lubricating a driveline device by using a lubricating composition.Type: ApplicationFiled: November 1, 2006Publication date: May 1, 2008Applicant: The Lubrizol CorporationInventors: James N. Vinci, Michael E. Huston, Denise R. Vermilya, Charla A. Ramsey, Roger L. Sowerby
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Publication number: 20040147415Abstract: A lubricant composition comprising a major amount of an oil of lubricating viscosity and a minor amount of:Type: ApplicationFiled: September 30, 2003Publication date: July 29, 2004Inventors: Alisdair J. Brown, Roger W. Glyde, Rebecca Castle, Jane Gilmore, Simon S. M. Chung, Rolfe J. Hartley
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Patent number: 6764984Abstract: Fluorinated dialkyl dithiophosphoric acids according to formula (I) and metallic salts thereof: the compounds are useful, for example, as additives for lubricant compositions.Type: GrantFiled: December 4, 2002Date of Patent: July 20, 2004Assignee: E. I. du Pont de Nemours and CompanyInventor: Richard P. Beatty
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Publication number: 20040072702Abstract: The invention concerns a method for cold rolling metals using an aqueous lubricant comprising: (1) at least a mixture based on at least an acid selected among saturated or unsaturated mono- or poly-carboxylic acids, comprising 5 to 40 carbon atoms; at least an acid phosphate ester of formula (RO)x—P(═O)(OH)x′, wherein: R is a hydrocarbon radical, optionally polyalkoxylated; x and x′ being equal to 3; the carboxylic acid and/or the acid phosphate ester being optionally neutralised by an organic or mineral base; and (2) at least a natural or synthetic wax exhibiting a melting point not less than 50° C. and having an average particle size ranging between 0.5 and 10 &mgr;m. The use of said lubricant enables to increase the productivity of the method by at least 15% relative to a method using a conventional lubricant.Type: ApplicationFiled: November 17, 2003Publication date: April 15, 2004Inventors: Dominique Raison, Jean-Guy Le Helloco
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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: 20030199400Abstract: A water-based household lubricant, free of hydrocarbon oils, comprises a water-soluble ammonium salt of a surfactant, preferably a carboxylate, sulfonate, phosphate or sarcosinate surfactant, preferably having rust preventative activity, most particularly ammonium N-oleol sarcosinate as a main or sole component. The composition also desirably contains an anti-microbial and a surface tension reducer, most preferably N-(N-octal)-2-pyrrolidone. An aqueous solution of the ammonium salt of the fatty acid surfactant, which is non-staining, is applied to a substrate, the water evaporates and ammonia from the ammonium ion is slowly released into the atmosphere leaving the surfactant as a lubricant. The residue provides rust resistance, water repellency and lubrication.Type: ApplicationFiled: January 7, 2003Publication date: October 23, 2003Inventor: Robert H. Black
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Publication number: 20030176299Abstract: The multifunctional lubricant according to the invention comprises at least one phosphoric ester (A) of general formula: 1Type: ApplicationFiled: December 20, 2002Publication date: September 18, 2003Inventors: Francois Guillemet, Gilles Darvaux-Hubert
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Publication number: 20030139300Abstract: Fluorinated dialkyl dithiophosphoric acids according to formula (I) and metallic salts thereof: 1Type: ApplicationFiled: December 4, 2002Publication date: July 24, 2003Inventor: Richard P. Beatty
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Patent number: 6596672Abstract: A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0% of a calcium overbased acidic material, 0.1 to 2.0% of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled hindered phenol antioxidant and an antioxidant other than an alkylene-coupled hindered phenol antioxidant, is particularly useful for lubricating stationary gas engines.Type: GrantFiled: May 28, 2002Date of Patent: July 22, 2003Assignee: The Lubrizol CorporationInventors: Virginia A. Carrick, Ewa A. Bardasz, David E. Ripple
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Patent number: 6573223Abstract: The invention relates to a lubricating composition comprising: (a) at least one sulfur-free hydrocarbyl phosphoric acid ester or salt, (b) at least one sulfur-containing hydrocarbyl phosphoric acid or salt, (c) an organic polysulfide, (d) at least one dispersant, and (e) at least one triazole metal deactivator. The composition may also include a thiadiazole derivative. This additive combination provides good antiwear and thermal stability properties, even under severe thermal conditions. These compositions also have good demulsibility properties. The above combination of additives provides the antiwear and extreme-pressure protection necessary for automotive and industrial gear applications. These additives additionally provide this protection without adversely effecting demulsibility properties of the lubricant.Type: GrantFiled: March 4, 2002Date of Patent: June 3, 2003Assignee: The Lubrizol CorporationInventor: James N. Vinci
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Patent number: 6569821Abstract: An overbased metal detergent having friction-modifying properties comprises colloidal inorganic base particles stably dispersed in an oil of lubricating viscosity. The colloidal particles constitute from 15 to 40 mass % of the detergent, and a stabilizing system constitutes from 20 to 45 mass % thereof, the balance being the oil of lubricating viscosity. The stabilizing system is the mixture obtained by combining an oil-soluble detergent component and from 25 to 75 mass % of an aliphatic amide having from 10 to 30 carbon atoms.Type: GrantFiled: January 3, 2000Date of Patent: May 27, 2003Assignee: Infineum USA L.P.Inventors: Tuncel Ibrahim, John A Cleverley, Phillip Skinner, Jane Rachel Galsworthy, Christopher John Adams, Rudi ter Haar
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Publication number: 20030069145Abstract: A gas engine lubricating oil composition that is substantially free from dispersant. The gas engine lubricating oil composition has a TBN in the range of 3.5 to 20. The gas engine lubricating oil composition comprises an oil of lubricating viscosity and at least one metal detergent.Type: ApplicationFiled: September 9, 2002Publication date: April 10, 2003Inventors: Laurent Chambard, Yolanda Owen
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Patent number: 6528457Abstract: A composition that can be used as lubricant for high electric field including spark plug boots is disclosed. The composition comprises, or is produced by combining, a halogenated oil such as a perfluoropolyether, a polytrichlorofluoroethylene, a fluorosilicone, or combinations of two or more thereof; a basic thickener; and optionally an additional thickener in which the basic thickener is a metal hydroxide, a metal salt, an ammonium salt, or combinations of two or more thereof. The optional additional thickener is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof. Also provided is a spark plug boot that comprises the composition applied thereto.Type: GrantFiled: June 28, 2001Date of Patent: March 4, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Jon L. Howell, H. Carl Walther, Gregory A. Bell
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Publication number: 20030013617Abstract: A composition that can be used as lubricant for high electric field including spark plug boots is disclosed. The composition comprises, or is produced by combining, a halogenated oil such as a perfluoropolyether, a polytrichlorofluoroethylene, a fluorosilicone, or combinations of two or more thereof; a basic thickener; and optionally an additional thickener in which the basic thickener is a metal hydroxide, a metal salt, an ammonium salt, or combinations of two or more thereof. The optional additional thickener is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof. Also provided is a spark plug boot that comprises the composition applied thereto.Type: ApplicationFiled: June 28, 2001Publication date: January 16, 2003Inventors: Jon L. Howell, H. Carl Walther, Gregory A. Bell
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Patent number: 6489271Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (a) a extreme pressure improving amount of at least one sulfur compound, and an antiwear or an extreme pressure improving amount of the combination of (b) at least one ammonium salt of a phosphoric acid ester, (c) at least one phosphite, and (d) at least one thiophosphate or at least one reaction product of a phosphite and sulfur or a source of sulfur. The invention also relates to concentrates and greases containing the combination of the sulfur is compound and the specific phosphorus compounds.Type: GrantFiled: August 20, 1996Date of Patent: December 3, 2002Assignee: The Lubrizol CorporationInventor: Robert C. Richardson
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Patent number: 6482777Abstract: This invention relates to a lubricating composition comprising a blend of a major amount of an oil of lubricating viscosity, gear or transmission oil package and a top treatment which comprises at least one saturated fatty phosphate ester or salt, wherein the lubricating composition is free of saturated fatty phosphites. Tin another embodiment, the invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, at least one saturated fatty phosphate ester or salt, at least one polysulfide and at least one phosphorus antiwear or extreme pressure agent, wherein the lubricating composition is free of saturated fatty phosphites. The invention relates to additive combinations which when added to a lubricant can provide and improve frictional and, optionally, thermal stability properties. The additives include a phosphate ester or salt wherein the hydrocarbyl group of the phosphate is a fatty-saturated group.Type: GrantFiled: October 19, 1999Date of Patent: November 19, 2002Assignee: The Lubrizol CorporationInventor: Robert W. Cain
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Patent number: 6468946Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (A) a di or trihydrocarbyl phosphite, (B) at least one reaction product of a di or trihydrocarbyl phosphite and sulfur or a source of sulfur; at least one di or trihydrocarbyl monothiophosphate; or salt thereof, and (C) a salt of a hydrocarbyl phosphoric acid ester. In one embodiment, the lubricant composition contains less than 0.1% phosphorus or less than about 0.75% borated dispersant. This combination of phosphorus compounds provides antiwear and thermal stability to lubricants, even at low phosphorus levels. The lubricating compositions containing the combination of the phosphorus compounds has low corrosivity to copper and low odor as well.Type: GrantFiled: July 6, 1999Date of Patent: October 22, 2002Assignee: The Lubrizol CorporationInventor: James N. Vinci
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Publication number: 20020086802Abstract: This invention relates to a lubricating composition comprising a blend of a major amount of an oil of lubricating viscosity, gear or transmission oil package and a top treatment which comprises at least one saturated fatty phosphate ester or salt, wherein the lubricating composition is free of saturated fatty phosphites. Tin another embodiment, the invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, at least one saturated fatty phosphate ester or salt, at least one polysulfide and at least one phosphorus antiwear or extreme pressure agent, wherein the lubricating composition is free of saturated fatty phosphites. The invention relates to additive combinations which when added to a lubricant can provide and improve frictional and, optionally, thermal stability properties. The additives include a phosphate ester or salt wherein the hydrocarbyl group of the phosphate is a fatty-saturated group.Type: ApplicationFiled: October 19, 1999Publication date: July 4, 2002Inventor: ROBERT W. CAIN
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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: 6153565Abstract: Phenate overbased detergents and salicylate overbased detergents with TBN: % surfactant ratios of 11 or more are useful marine diesel lubricant additives.Type: GrantFiled: November 9, 1998Date of Patent: November 28, 2000Assignee: Exxon Chemical Patents INCInventors: Philip Skinner, Alain Louis Pierre Lenack
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Patent number: 6103675Abstract: The invention relates to the use of mixtures of one or more phosphoric esters of the formula (I) with one or more amines of the formula (II) as extreme pressure additives in water-immiscible cooling lubricants ##STR1## in which the substituents have the meaning defined in the description.Type: GrantFiled: March 11, 1998Date of Patent: August 15, 2000Assignee: Clariant GmbHInventors: Peter Pyka, Barbara Vollnhals, Bernd Pomrehn
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Patent number: 6100226Abstract: Improved grease compositions comprise a major amount of an oil based metal soap thickened base grease selected from the group consisting of simple metal soap thickened base grease, complex grease and failed complex grease, at least one sulfur and phosphorus containing composition, an overbased metal salt of an organic acid, a hydrocarbyl phosphite, and an aliphatic group substituted carboxylic acid or anhydride thereof, wherein the aliphatic group contains at least about 12 carbon atoms in amounts sufficient to increase the dropping point of the base grease, as measured by ASTM Procedure D-2265 by at least 15.degree. C., the phosphorus and sulfur compound being described in detail herein.Type: GrantFiled: May 20, 1998Date of Patent: August 8, 2000Assignee: The Lubrizol CorporationInventors: Edward J. Konzman, Gary W. Wiggins
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Patent number: 6063742Abstract: Improved grease compositions comprise a major amount of an oil based metal soap thickened base grease selected from the group consisting of simple metal soap thickened base grease, complex grease and failed complex grease, at least one metal salt of a sulfur and phosphorus containing acid, an overbased metal salt of an organic acid, a hydrocarbyl phosphite, and optionally, an aliphatic group substituted carboxylic acid, anhydride thereof and aliphatic group substituted lactone, wherein the aliphatic group contains at least about 8 carbon atoms in amounts sufficient to increase the dropping point of the base grease, as measured by ASTM Procedure D-2265 by at least 15.degree. C.Type: GrantFiled: March 1, 1999Date of Patent: May 16, 2000Assignee: The Lubrizol CorporationInventor: Edward J. Konzman
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Patent number: 6004910Abstract: A lubricating oil having an ashless nitrogenous TBN source together with ash containing detergent having a TBN in excess of 100, a source of magnesium, and metal dihydrocarbyl dithiophosphate with predominantly or exclusively secondary hydrocarbyl groups is described. It comprises a major amount of an oil of lubricating viscosity having a sulfated ash content between 0.35 and 2 mass percent and A) a nitrogenous TBN source selected from the group consisting of ashless nitrogen containing dispersants, ashless nitrogen containing dispersant viscosity modifiers, oil soluble aliphatic, oxyalkyl, or arylalkyl amines and mixtures thereof; B) a metal salt of an oil soluble acid having a TBN in excess of 100; C) at least 500 ppm (mass) magnesium; and D) at least one metal dihydrocarbyl dithiophosphate. The nitrogenous TBN source provides at least about 1.5 TBN to the finished lubricant. The metal salt of an oil soluble acid provides at least about 40% of the total TBN of the composition.Type: GrantFiled: March 7, 1995Date of Patent: December 21, 1999Assignee: Exxon Chemical Patents Inc.Inventors: Ricardo Alfredo Bloch, Arunas T. Lapinas, Edward F. Outten, Andrew James Dalziel Ritchie, Malcolm Waddoups
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Patent number: 5997761Abstract: A refrigerating machine oil composition which comprises, in the form of a blend, a base oil comprising a mineral oil or a synthetic oil and at least one species of an amine salt of an organic phosphoric acid, e.g. monooctylamine dioleyl phosphate.Type: GrantFiled: October 28, 1998Date of Patent: December 7, 1999Assignee: Idemitsu Kosan Co., Ltd.Inventor: Masato Kaneko
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Patent number: 5958850Abstract: A rust preventive composition which is obtained by blending at least one base oil selected from the group consisting of a hydrocarbon solvent, a mineral oil and a synthetic oil with, as essential components,(A) an organophosphoric ester calcium salt represented by the following general formula (1) in an amount of 0.1 to 5.0% by mass based on the total mass of the composition ##STR1## wherein R.sup.1 and R.sup.2 are each an alkyl group having 6 to 18 carbon atoms; and a and b are each an integer of 1 to 6,(B) water in an amount of 0.1 to 3.0 parts by weight based on 1 part by weight of the component (A), and(C) a rust inhibitor in an amount of 2.0 to 30% by mass based on the total mass of the composition.Type: GrantFiled: April 10, 1997Date of Patent: September 28, 1999Assignee: Nippon Oil., Ltd.Inventors: Yukio Matsuzaki, Yoshihiro Iwamura, Yoshitaka Natsume
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Patent number: 5919740Abstract: There are disclosed antioxidant additives for lubricating oils which exhibit reduced phosphorus volatility, the additives being sodium, potassium, lithium or oil soluble amine salts of a dialkyldithiophosphoric acid prepared by reacting P.sub.2 S.sub.5 with a mixture of alcohols consisting of (a) a polyol of the formula R(OH).sub.n where R is a C.sub.2 -C.sub.20 hydrocarbyl group and n is 2-10 and (b) an aliphatic monohydric alcohol having 3-18 carbon atoms, the mixture containing relative amounts of polyol and monohydric alcohol such that 50 mole % of the total OH groups are OH groups of the polyol.Type: GrantFiled: May 29, 1998Date of Patent: July 6, 1999Assignee: Exxon Chemical Patents IncInventors: Ricardo A. Bloch, Alexander B. Boffa
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Patent number: 5865884Abstract: A glass forming lubricant comprising an organic titanate or an organic phospherous ester calcium salt as a lubricant agent.Type: GrantFiled: May 1, 1997Date of Patent: February 2, 1999Assignees: Asahi Glass Company Ltd., Chukyo Kasei Kogyo Co., Ltd.Inventors: Yutaka Segawa, Yukio Morisawa, Ryoji Nishizawa, Norio Doi
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Patent number: 5858266Abstract: A refrigerating machine oil composition which comprises, in the form of a blend, a base oil comprising a mineral oil or a synthetic oil and at least one species selected from the group consisting of a metallic salt of an inorganic phosphoric acid, e.g. potassium phosphate, an amine salt of an inorganic phosphoric acid, e.g. octylamine phosphate, a metallic salt of an organic phosphoric acid, e.g. dipotassium lauryl phosphate, an amine salt of an organic phosphoric acid, e.g. monooctylamine dioleyl phosphate, a metallic salt of an organic phosphonic acid, e.g. dipotassium oleyl phosphonate, an amine salt of an organic phosphonic acid, e.g. octylamine dilauryl phosphonate, a metallic salt of an organic phosphorous acid, e.g. sodium dioleyl phoshite, and an amine salt of an organic phosphorous acid, e.g. octylamene dioleyl phosphate.Type: GrantFiled: April 7, 1997Date of Patent: January 12, 1999Assignee: Idemitsu Kosan Co., Ltd.Inventor: Masato Kaneko
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Patent number: 5595964Abstract: A composition of an oil of lubricating viscosity, an antioxidant, an anti-nitration agent, and optionally a borated product of an epoxide or the reactive equivalent of an epoxide, provides a desirable lubricant for diesel or natural gas-fueled engines. The composition is substantially free from metals and preferably substantially free from phosphorus. The amount of the antioxidant the anti-initration agent are sufficient to reduce the amount of varnish formation in a natural gas engine.Type: GrantFiled: September 1, 1995Date of Patent: January 21, 1997Assignee: The Lubrizol CorporationInventor: Ewa A. Bardasz