Nitrogen Containing (i.e., Nitrogen And Boron In The Same Compound) Patents (Class 508/189)
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Patent number: 10344240Abstract: The disclosed technology relates to a concentrated multi-functional additive that can be continuously dosed in internal combustion engines.Type: GrantFiled: May 27, 2015Date of Patent: July 9, 2019Assignee: The Lubrizol CorporationInventor: Clara Fabre
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Patent number: 10336963Abstract: A lubricating composition includes an oil of lubricating viscosity and an ionic tetrahedral borate compound which includes a cation and a tetrahedral borate anion which includes a boron atom, the boron atom having at least one aromatic bidentate di-oxo ligand. The compound may be represented by formula (I), where R1 and R2 are selected from C1-48 hydrocarbyl groups or together form a substituted or unsubstituted 5- or 6-membered ring; R3 and R4 together represent a substituted or unsubstituted aromatic ring; m is 0 or 1; X is hydrogen, a C1-24 hydrocarbyl group, —OR5, —NHR5, or ?O, R5 is a C1-24 hydrocarbyl group; M represents the cation; and n is at least 1. The cation may be selected to provide detergent and/or dispersant properties to the lubricating composition. In the case of ammonium cations, the molecular weight may be 260 g/mol or higher for providing a highly soluble compound, particularly when X is ?O.Type: GrantFiled: February 25, 2016Date of Patent: July 2, 2019Assignee: THE LUBRIZOL CORPORATIONInventors: James D. Burrington, Ewan Delbridge, Yanshi Zhang, John K. Pudelski
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Patent number: 9150811Abstract: Disclosed is a method for improving copper corrosion performance of a lubricating oil composition containing (a) a major amount of a base oil of lubricating viscosity; and (b) one or more dispersants containing one or more basic nitrogen atoms. The method involves adding to the lubricating oil composition an effective amount of one or more copper corrosion performance improving agents containing one or more oil-soluble titanium compounds.Type: GrantFiled: March 31, 2010Date of Patent: October 6, 2015Assignee: Cherron Oronite Company LLCInventors: Kenneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
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Publication number: 20140045734Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and phosphorus-containing friction modifiers, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.Type: ApplicationFiled: May 15, 2012Publication date: February 13, 2014Applicant: THE LUBRIZOL CORPORATIONInventors: James D. Burrington, Ewan E. Delbridge, Danielle N. Ivancic
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Patent number: 8592356Abstract: A lubricating oil composition used in an internal combustion engine contains lubricating base oil; a disulfide compound as a component (A), a no-boron-containing ashless dispersant as a component (B), and a boron-containing ashless dispersant as a component (C). The disulfide compound as the component (A) is represented by the following formula (1) and/or the following formula (2). The no-boron-containing ashless dispersant as the component (B) has in its side chain: an alkyl group having a number average molecular weight of 500 to 3,000; or an alkenyl group having a number average molecular weight of 500 to 3,000. The boron-containing ashless dispersant as the component (C) has in its side chain: an alkyl group having a number average molecular weight of 500 to 4,000; or an alkenyl group having a number average molecular weight of 500 to 4,000.Type: GrantFiled: May 21, 2008Date of Patent: November 26, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventor: Koki Ito
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Patent number: 8569215Abstract: Disclosed is a transmission oil composition for use in a push belt continuously variable transmission (CVT). The push belt CVT oil composition includes a hydrogenated base oil or a synthetic base oil admixed with a viscosity control agent, a dispersing agent, a friction control agent and other additives at specific ratios and provides improved friction characteristics, durability, thermal stability, oxidation stability and transmission performance. It can be used at various temperature ranges and can provide improved transmission efficiency (fuel efficiency).Type: GrantFiled: November 18, 2011Date of Patent: October 29, 2013Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Sang Yeob Cha
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Patent number: 8536102Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.Type: GrantFiled: February 6, 2013Date of Patent: September 17, 2013Assignee: Chevron Oronite Company LLCInventor: Juan A. Buitrago
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Patent number: 8507417Abstract: Disclosed are sulfur and phosphorous free, borated organomolybdenum compositions containing borated alcohols. These compositions can be formulated with ashless antioxidants and low levels of phosphorous containing antiwear compounds to provide improved lubricating compositions.Type: GrantFiled: February 23, 2007Date of Patent: August 13, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: William H. Buck, Douglas E. Deckman, L. Oscar Farng, Andrew G. Horodsky, Marcia G. Rogers, Thomas J. Karol
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Patent number: 8445417Abstract: The invention relates to a lubricating composition containing (a) a borated phospholipid, (b) an amine salt of a phosphoric acid ester, and (c) an oil of lubricating viscosity. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.Type: GrantFiled: November 21, 2008Date of Patent: May 21, 2013Assignee: The Lubrizol CorporationInventors: Mark R. Baker, Gabriel B. Rhoads
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Publication number: 20130065802Abstract: Disclosed is a transmission oil composition for use in a push belt continuously variable transmission (CVT). The push belt CVT oil composition includes a hydrogenated base oil or a synthetic base oil admixed with a viscosity control agent, a dispersing agent, a friction control agent and other additives at specific ratios and provides improved friction characteristics, durability, thermal stability, oxidation stability and transmission performance. It can be used at various temperature ranges and can provide improved transmission efficiency (fuel efficiency).Type: ApplicationFiled: November 18, 2011Publication date: March 14, 2013Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANYInventor: Sang Yeob Cha
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Patent number: 8389449Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.Type: GrantFiled: December 17, 2010Date of Patent: March 5, 2013Assignee: Chevron Oronite Company LLCInventor: Juan A. Buitrago
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Publication number: 20130005621Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.Type: ApplicationFiled: November 17, 2010Publication date: January 3, 2013Applicant: THE LUBRIZOL CORPORATIONInventors: Ewan E. Delbridge, John J. Mullay, James D. Burrington, Jonathan R. Sharpe, John W. Dunkerley
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Patent number: 8334242Abstract: Multi-functional additives which impart improved antioxidancy to lubricating oil compositions and frictional properties resulting in improved fuel economy in an internal combustion engine are disclosed. More particularly disclosed is a boron containing salt of an oil soluble hydroxylated amine and a hindered phenolic acid product prepared by: a) reacting an oil soluble hydroxylated amine of the general formula II: wherein A at each occurrence is each independently C2-C6 alkylene group; R is methyl or an alkyl or alkenyl group having C2-C24 carbon atoms; Y is hydrogen, C1-C6 alkyl group or A-OH; x is an integer of 1 or 2; and z is an integer of 0 or 1; with a boron containing compound under reactive conditions; and b) mixing the reaction product of step a) with a hindered phenolic acid.Type: GrantFiled: October 12, 2010Date of Patent: December 18, 2012Assignee: Chevron Oronite Company LLCInventors: Yat Fan Suen, John Ward, Trevor Miller
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Publication number: 20120316092Abstract: A lubricating oil composition for a continuously variable transmission contains at a specific content: (A) a mineral oil or PAO having a sulfur content of 0.03 mass % or less and a kinematic viscosity at 100 degrees C. from 1.5 mm2/s to 3 mm2/s; (B) a mineral oil or PAO having a sulfur content of 0.03 mass % or less and a kinematic viscosity at 100 degrees C. from 5.5 mm2/s to 8 mm2/s; (C) PAO having a kinematic viscosity at 100 degrees C. from 30 mm2/s to 400 mm2/s; and (D) a polymethacrylate having a mass average molecular weight of 10000 to 40000, in which the total content of the components (C) and (D) is 19 mass % or more and the lubricating oil composition has a kinematic viscosity at 100 degrees C. from 5.5 mm2/s to 6.5 mm2/s and a kinematic viscosity at ?20 degrees C. of 680 mm2/s or less.Type: ApplicationFiled: November 24, 2010Publication date: December 13, 2012Applicants: JATCO Ltd., IDEMITSU KOSAN CO., LTD.Inventors: Hiroshi Fujita, Toshihiko Ichihashi, Kenji Kojima, Yoshie Arakawa, Makoto Maeda, Hideki Usuki
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Patent number: 8138130Abstract: A multifunctional product is prepared by the reaction of an alkyl or alkenyl succinic acid derivative with a Fused-Ring Aromatic diamine, with a charge mole ratio of the diamine moiety in stoichiometric excess, under reactive conditions to thereby yield a multifunctional lubricant additive.Type: GrantFiled: March 31, 2005Date of Patent: March 20, 2012Assignee: Chevron Oronite Company LLCInventors: Kenneth Dale Nelson, Edward A. Chiverton
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Patent number: 8088720Abstract: The present invention is directed to method of making a green lubricant composition having improved wear protection and reduced phosphorus emissions.Type: GrantFiled: February 6, 2009Date of Patent: January 3, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Jacob J. Habeeb, Douglas E. Deckman, Brandon T. Weldon, William L. Maxwell
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Patent number: 7902131Abstract: Molybdenum-free lubricating compositions are provided, having an antioxidation additive composition based on a combination of (1) alkylated diphenylamine (APDA), (2) polyamine dispersant, and (3) monoglyceride, ethoxylated amide, or mixtures thereof. Further synergy is achieved when component (3) is borated, allowing a reduction in phosphorus levels to below 0.08% or even a phosphorus-free composition.Type: GrantFiled: April 26, 2007Date of Patent: March 8, 2011Assignee: R.T. Vanderbilt Company, Inc.Inventors: Gaston A. Aguilar, Brian Stunkel, Steven G. Donnelly
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Patent number: 7888299Abstract: In its broadest concept, the present invention relates to an improved gear oil comprising: a) a base oil having a viscosity range of 4 to 32 cSt at 100° C.; b) a maximum level of hydrocarbyl polysulfide with a minimum level of active S species; c) a dihydrocarbyl dithiophosphate ester or salt; and d) a dihydrocarbyl (mono)thiophosphate amine salt, essentially free of phosphite.Type: GrantFiled: January 13, 2004Date of Patent: February 15, 2011Assignee: Afton Chemical Japan Corp.Inventors: Jeffrey L. Milner, Masao Seki, Roger M. Sheets, Kenji Yatsunami
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Patent number: 7871965Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.Type: GrantFiled: August 7, 2008Date of Patent: January 18, 2011Assignee: Chevron Oronite Company LLCInventor: Juan Buitrago
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Publication number: 20100144567Abstract: A lubricating oil composition used in an internal combustion engine contains lubricating base oil; a disulfide compound as a component (A), a no-boron-containing ashless dispersant as a component (B), and a boron-containing ashless dispersant as a component (C). The disulfide compound as the component (A) is represented by the following formula (1) and/or the following formula (2). The no-boron-containing ashless dispersant as the component (B) has in its side chain: an alkyl group having a number average molecular weight of 500 to 3,000; or an alkenyl group having a number average molecular weight of 500 to 3,000. The boron-containing ashless dispersant as the component (C) has in its side chain: an alkyl group having a number average molecular weight of 500 to 4,000; or an alkenyl group having a number average molecular weight of 500 to 4,000.Type: ApplicationFiled: May 21, 2008Publication date: June 10, 2010Applicant: IDEMITSU KOSAN CO., LTD.Inventor: Koki Ito
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Patent number: 7691794Abstract: Disclosed herein are reaction products of an acidic organic compound, a boron compound, and an alkoxylated amine and/or alkoxylated amide. Also disclosed are lubricating oil compositions and fuel compositions containing the reaction products.Type: GrantFiled: January 4, 2006Date of Patent: April 6, 2010Assignee: Chemtura CorporationInventor: Ronald J. Muir
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Patent number: 7674754Abstract: A water-based metalworking fluid is comprised of a polymeric boron species which includes at least B, N and H, together with a surfactant operable to provide an emulsion of the boron species with water. The polymeric boron species may be a polyborane or a borazine polymer and may be configured as a polyborane or borazine polymer backbone having side chains pendent thereupon. The side chains may include silicon and/or phosphorous. The silicon may be in the form of a silane or a siloxane species, including polymeric species. Disclosed are specific compositions as well as methods for using the compositions and methods for making the compositions.Type: GrantFiled: November 29, 2006Date of Patent: March 9, 2010Assignee: Masco CorporationInventors: John Noble, Philip B. Simon, Ross Smith
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Publication number: 20090325830Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity with an iodine number less than about 9, (A) one or more antioxidant, and (B) from about 0.01% to about 3% by weight of at least one dispersant or detergent, wherein the total amount of antioxidant is at least about 2% by weight. The additives are useful act controlling oxidation of lubricants. Further, these lubricants have reduced viscosity increase caused by oxidation, while maintaining favorable carbon/varnish ratings.Type: ApplicationFiled: July 23, 2009Publication date: December 31, 2009Inventors: Eric R. Schnur, Robert C. Richardson, James J. Schwind
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Patent number: 7629300Abstract: A composition is disclosed that comprises the reaction product of an acidic organic compound, a boron compound, and a basic organic compound. The composition is useful as a detergent additive for lubricants and hydrocarbon fuels.Type: GrantFiled: December 12, 2008Date of Patent: December 8, 2009Assignee: Chemtura CorporationInventor: Ronald J. Muir
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Patent number: 7622431Abstract: Reaction products of an acidic organic compound, a boron compound, and an alkoxylated amine and/or alkoxylated amide. Also disclosed are lubricating oil compositions and fuel compositions containing the reaction products.Type: GrantFiled: December 16, 2008Date of Patent: November 24, 2009Assignee: Chemtura CorporationInventor: Ronald J. Muir
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Patent number: 7618467Abstract: A composition is disclosed that comprises the reaction product of an acidic organic compound, a boron compound, and a basic organic compound. The composition is useful as a detergent additive for lubricants and hydrocarbon fuels.Type: GrantFiled: January 17, 2005Date of Patent: November 17, 2009Assignee: Chemtura CorporationInventor: Ronald J. Muir
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Patent number: 7544644Abstract: A novel hydroxyalkyldithiocarbamate borate ester compound is presented according to the formula: where R=alkyl C1 to C25; R?=H or CO2R; R?=(CH2)mOH where m=1 to 8, or alkyl C1 to C25; n=1 to 8. The borate ester compound is prepared by reacting boric acid with a novel hydroxyalkyldithiocarbamate ester compound according to the formula, and optionally with an alcohol: where R, R?, R? and n are as above. The hydroxyalkyldithiocarbamate ester is prepared by reacting a hydroxyalkylamine with CS2, and an acrylate or maleate compound. A lubricating composition is based on a major amount of lubricating oil and a minor amount of the hydroxyalkyldithiocarbamate borate ester.Type: GrantFiled: October 21, 2005Date of Patent: June 9, 2009Assignee: R.T. Vanderbilt, Inc.Inventors: Kevin J. Chase, Ronald Tepper
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Publication number: 20090099049Abstract: Reaction products of an acidic organic compound, a boron compound, and an alkoxylated amine and/or alkoxylated amide. Also disclosed are lubricating oil compositions and fuel compositions containing the reaction products.Type: ApplicationFiled: December 16, 2008Publication date: April 16, 2009Inventor: Ronald J. Muir
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Patent number: 7414014Abstract: A method and system to reduce fuel consumption and environmental impact in a two-stroke engine. Fresh system oil having a TBN less than 10 is provided and used in the two-stroke engine to produce partially used system oil. The partially used system oil is withdrawn from the two stroke engine and at least one friction modifier is added to at least some of the withdrawn partially used system oil, wherein the addition of the at least one friction modifier reduces the friction coefficient of the withdrawn system oil, resulting in a system oil having reduced friction. The system oil with reduced friction is combined with partially used system oil remaining in said two-stroke and the combined system oil is used to lubricate pistons of said two-stroke engine.Type: GrantFiled: December 30, 2004Date of Patent: August 19, 2008Assignee: A.P. Moeller-Maersk/ASInventors: Giuseppe Natoli, Giulio Giovanni Pometto, Alfio Bonciolini, Hans Heinrich Petersen, Jørn Dragsted, Claus Martin Olesen, Klaus-Werner Damm
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Patent number: 7407917Abstract: An additive compound comprising a non-borated and/or borated reaction product, in which the reaction product is obtained by reacting a linear or branched, saturated or unsaturated monovalent aliphatic acid having 8 to 22 carbon atoms, urea, and polyalkylenepolyamine, when employed in a lubricating oil composition is favorably employable as an automatic transmission fluid of internal combustion engines.Type: GrantFiled: November 16, 2004Date of Patent: August 5, 2008Assignee: Chevron Oronite Company LLCInventors: Michio Shiga, Tomotusgu Shiroi
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Patent number: 7026273Abstract: A crankcase lubricating oil composition comprises an oil of lubricating viscosity, in a major amount, and, in respective minor amounts, a boron-containing additive and one or more co-additives, wherein the lubricating oil composition has greater than 200 ppm by mass of boron, less than 600 ppm by mass of phosphorus and less than 4000 ppm by mass of sulfur, based on the mass of the oil composition. Such compositions demonstrate provide improved wear performance.Type: GrantFiled: October 22, 2002Date of Patent: April 11, 2006Assignee: Infineum International LimitedInventors: Robert Robson, Roger W. Glyde, Alisdair J. Brown, Simon S. M. Chung, Stephen Arrowsmith
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Publication number: 20040038834Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, (A) an antiwear improving amount of at least one molybdenum containing composition, (B) at least one phosphorus antiwear or extreme pressure agent, and (C) at least one dispersant, provided that the lubricating composition is free of polysulfurized olefins. The lubricating compositions have improved antiwear properties. When the lubricating composition is used in a manual transmission, the amount of brass wear is reduced.Type: ApplicationFiled: August 21, 2003Publication date: February 26, 2004Inventor: Michael P. Gahagan
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Publication number: 20030148895Abstract: A crankcase lubricating oil composition comprises an oil of lubricating viscosity, in a major amount, and, in respective minor amounts, a boron-containing additive and one or more co-additives, wherein the lubricating oil composition has greater than 200 ppm by mass of boron, less than 600 ppm by mass of phosphorus and less than 4000 ppm by mass of sulfur, based on the mass of the oil composition. Such compositions demonstrate provide improved wear performance.Type: ApplicationFiled: October 22, 2002Publication date: August 7, 2003Inventors: Robert Robson, Roger W. Glyde, Alisdair J. Brown, Simon S. M. Chung, Stephen Arrowsmith
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Patent number: 6451745Abstract: Continuously variable transmission can be lubricated by supplying to them a composition of (a) an oil of lubricating viscosity; (b) a dispersant; and (c) a detergent. At least one of the dispersant (b) and the detergent (c) is a borated species, and the amount of boron present in the composition is sufficient to impart improved friction and anti-seizure properties to the composition when employed in said transmission.Type: GrantFiled: March 21, 2000Date of Patent: September 17, 2002Assignee: The Lubrizol CorporationInventor: William C. Ward
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Publication number: 20020119895Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (A) an antiwear improving amount of at least one molybdenum containing composition, and (B) at least one member selected from the group consisting of (i) at least one borated overbased metal salt of an acidic organic compound, provided that (A) and (Bi) are not the same, (ii) a combination of (a) at least one organic polysulfide or at least one ashless dithiocarbamate containing composition and (b) at least one component selected from the group consisting of a metal thiophosphate, a phosphoric acid ester or salt thereof, a phosphorus-containing carboxylic acid, ester, ether, or amide, a borated dispersant, an alkali metal borate, a borated fatty amine, a borated phospholipid, a borate ester, and mixtures thereof, and (iii) a combination of (i) and (ii).Type: ApplicationFiled: May 26, 1995Publication date: August 29, 2002Inventors: SUSAN P. COOK, JAMES J. SCHWIND, BERNARD CONSTANS, HENRI BOURGOGNON
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Patent number: 6251840Abstract: A lubricating/functional fluid composition which exhibits in use improved antiwear and antifoaming properties. The improvements result from use of 2,5-dimercapto-1,3,4-thiadiazole and derivatives thereof together with silicone and/or fluorosilicone antifoam agents.Type: GrantFiled: January 14, 1997Date of Patent: June 26, 2001Assignee: The Lubrizol CorporationInventors: William C. Ward, Jr., Craig D. Tipton, Kathleen A. Murray
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Patent number: 6248702Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified, and post treated. The dispersant substances include a copolymer of two different conjugated dienes and an aryl-substituted olefin. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.Type: GrantFiled: November 30, 1998Date of Patent: June 19, 2001Assignee: Mobil Oil CorporationInventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
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Patent number: 6228817Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified, and post treated. The dispersant substances include a copolymer of two different conjugated dienes. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.Type: GrantFiled: June 23, 1998Date of Patent: May 8, 2001Assignee: Mobil Oil CorporationInventors: Thomas S. Coolbaugh, John E. Marlin, II, Demetrios N. Matthews, Kenneth G. Stensler, Frederick C. Loveless
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Patent number: 6162768Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified and post treated. The dispersant substances include a copolymer of two different conjugated dienes. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. The polymers may be functionalized by grafting of heteroatom-containing olefins. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.Type: GrantFiled: June 23, 1998Date of Patent: December 19, 2000Assignee: Mobil Oil CorporationInventors: Thomas S. Coolbaugh, Frederick C. Loveless, John E. Marlin, II, Demetreos N. Matthews
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Patent number: 6096691Abstract: The concentrates comprise specified proportions of diluent oil, an organic sulfur-containing antiwear and/or extreme pressure agent, an ashless dispersant, a dimethyl ester of an aliphatic phosphonic acid in which the aliphatic group has an average in the range of about 12 to about 24 carbon atoms, and a 3-hydrocarbyl-2,5-diketopyrrolidine in which the hydrocarbyl group is an alkyl or alkenyl group having an average in the range of about 12 to about 30 carbon atoms. By using weight ratios of diketopyrrolidine to the dimethyl phosphonate of at least 3:1, the concentrate remains homogeneous at temperatures at least as low as 12.degree. C. When utilized as a top treat in gear oils formulated with conventional GL-4 and GL-5 gear additive packages substantial improvements in limited slip axle performance can be realized.Type: GrantFiled: April 9, 1993Date of Patent: August 1, 2000Assignee: Ethyl CorporationInventors: Gregory S. Conary, Rolfe J. Hartley
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Patent number: 6001779Abstract: A lubricating oil composition has an oil of lubricating viscosity, plus minor portions of alkylated aminophenol and zinc dithiophosphate. Preferably, about 75 mol % of the alkyl groups of the zinc dithiophosphate are derived from primary alcohols. The alkylated aminophenol can be a borated 4-alkyl-2-aminophenol having, as its alkyl group, a polypropylene tetramer having from 18 to 30 carbon atoms.Type: GrantFiled: September 8, 1993Date of Patent: December 14, 1999Assignee: Chevron Chemical Company LLCInventor: Elaine S. Yamaguchi
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Patent number: 5942470Abstract: Gear oils and gear oil additive concentrates of enhanced positraction performance are described. They comprise: (i) at least one oil-soluble sulfur-containing extreme pressure or antiwear agent; (ii) at least one oil-soluble amine salt of a partial ester of an acid of phosphorus; and (iii) at least one oil-soluble succinimide of the formula ##STR1## where R.sub.1 is an alkyl or alkenyl group having an average of 8 to 50 carbon atoms, and each of R.sub.2, R.sub.3 and R.sub.4 is a hydrogen atom or an alkyl or alkenyl group having an average of up to about 4 carbon atoms. These compositions preferably contain one, more preferably two, and most preferably all three of the following additional components: (iv) at least one amine salt of a carboxylic acid; (v) at least one nitrogen-containing ashless dispersant; and (vi) at least one trihydrocarbyl ester of a pentavalent acid of phosphorus.Type: GrantFiled: May 19, 1998Date of Patent: August 24, 1999Assignee: Ethyl Petroleum Additives, Inc.Inventors: Stephen Norman, Donald G. Campbell, Gregory S. Conary
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Patent number: 5817605Abstract: Oil-based functional fluid compositions formulated for use as automatic transmission fluid, fluid for a wet brake system, or a friction-depending lubricant are improved by including in the composition a minor amount of at least one alcohol or polyol having less than 12 carbon atoms in the molecule. This results in a desirable increase in the dynamic and/or static coefficients of friction of automatic transmission or other frictional surfaces contacted by the composition. Preferred for this use is a composition formed by heating at least one ashless dispersant containing basic nitrogen and/or at least one hydroxyl group with a combination of at least (i) an inorganic acid of phosphorus, (ii) a boron compound, and (iii) a polyol having less than 12 carbon atoms, so that a liquid composition is formed. The boron compound and the inorganic phosphorus acid are preferably co-present during the heating.Type: GrantFiled: June 3, 1991Date of Patent: October 6, 1998Assignee: Ethyl Petroleum Additives, Inc.Inventor: Andrew G. Papay
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Patent number: 5646098Abstract: The invention relates to novel compositions comprising ene and free radical adducts of unsaturated and saturated hydrocarbons, and acyclic and cyclic vicinal polycarbonyl compounds such as diethyl ketomalonate and indantrione. The adducts are reacted with nucleophiles such as amines, electrophiles such as anhydrides and esters, and metal ions. Post-products are obtained via reaction of said products with capping reagents such as boric acid. Compositions containing said adducts, products and post-products include oleaginous substances such as fuels and lube oils.Type: GrantFiled: May 13, 1994Date of Patent: July 8, 1997Assignee: Exxon Chemical Patents IncInventor: Stanley J. Brois
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Patent number: 5639716Abstract: Oil-soluble dispersant additives are disclosed. The additives comprise the reaction product of a functionalized 1-butene copolymer and at least one nucleophilic reactant selected from amines, amino alcohols, alcohols, and reactive metal compounds. The functionalized copolymer has within its structure at least one acyl functional group selected from the group consisting of C.sub.4 to C.sub.10 dicarboxylic acids and derivatives thereof and C.sub.3 to C.sub.10 monocarboxylic acids and derivatives thereof. The 1-butene copolymer is derived from 1-butene and at least one other .alpha.-olefin of formula CH.sub.2 .dbd.CHR', wherein R' is methyl or a C.sub.3 to C.sub.12 linear or branched alkyl group. The copolymer has a number average molecular weight of at least about 700, a molecular weight distribution of less than 5, and ethenylidene groups terminating at least about 30% of all polymer chains.Type: GrantFiled: June 9, 1994Date of Patent: June 17, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Albert Rossi, Jacob I. Emert, Warren A. Thaler
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Patent number: 5628804Abstract: A polyether esteramide reaction product effective as a fuel additive for reducing intake valve deposits and octane requirement increase, as well as controlling combustion chamber deposits, in gasoline engines is disclosed together with fuel compositions and methods of making and using the same. The polyether esteramide reaction product contains two carbonyl groups. Preferably, the polyether esteramide contains an oxalyl group. Also disclosed are compositions and methods for dispersing deposits in lubricating oil products.Type: GrantFiled: December 21, 1995Date of Patent: May 13, 1997Assignee: Ethyl CorporationInventor: John T. Loper
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Patent number: 5620948Abstract: This invention relates to a composition, comprising: (A) a Mannich dispersant having a base number in the range of about 45 to about 90; (B) a boron compound; and (C) an organic phosphorus acid or ester, or derivative of said phosphorus acid or ester. In one embodiment, this composition further comprises (D) a thiocarbamate. In one embodiment, this composition further comprises (E) a nitrogen-containing ester of a carboxy-containing interpolymer. These compositions are useful as additives for lubricants and functional fluids, and are particularly useful as additives for automatic transmission fluids for enhancing the torque characteristics such automatic transmission fluids.Type: GrantFiled: June 20, 1996Date of Patent: April 15, 1997Assignee: The Lubrizol CorporationInventor: Craig D. Tipton
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Patent number: 5583099Abstract: This invention describes nitrogen containing compounds which are boronated in the presence of a protic material such as water or an alcohol or mixtures thereof.Type: GrantFiled: May 16, 1996Date of Patent: December 10, 1996Assignee: The Lubrizol CorporationInventor: Thomas F. Steckel
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Patent number: 5571445Abstract: A "cold-clash" gear problem associated with vehicular manual transmissions exposed to the cold is overcome by use of a special all-synthetic gear oil composition. The composition is composed of base oil and specified additive components. The base oil is a blend of dialkyl ester of an aliphatic dicarboxylic acid having a maximum pour point of about -55.degree. C. and a maximum kinematic viscosity at 100.degree. C. of about 4 cSt, and three hydrogenated poly-.alpha.-olefin oligomers having kinematic viscosities at 100.degree. C. of about 40, about 4-8 cSt and about 2 cSt in specified proportions. The additive components comprise an organic sulfur-containing antiwear and/or extreme pressure agent, an organic phosphorus-containing antiwear and/or extreme pressure agent, a copper corrosion inhibitor, a rust inhibitor, a foam inhibitor, and an ashless dispersant. The gear oil has a boron content of about 0.0025 to about 0.07 wt %.Type: GrantFiled: September 21, 1995Date of Patent: November 5, 1996Assignee: Ethyl CorporationInventors: Sanjay Srinivasan, Rolfe J. Hartley
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Patent number: 5561103Abstract: Compositions of matter containing self condensation reaction products of alkylthio alkanols and dispersants which are found to have utility in lubricating/functional fluids.Type: GrantFiled: September 25, 1995Date of Patent: October 1, 1996Assignee: The Lubrizol CorporationInventor: Craig D. Tipton