With Organic Nitrogen Compound Patents (Class 508/373)
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Publication number: 20140194330Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and an ester, thioester, amide or imide of a carboxylic acid compound where said carboxylic acid is characterized in that it is functionalized with a hydroxy-substituted aromatic moiety. The invention further relates to methods of lubricating an internal combustion engine by supplying the described lubricating composition to the internal combustion engine. The invention further relates to the use of the salt of the carboxylic acid compound as an antiwear agent or an antioxidant.Type: ApplicationFiled: June 13, 2012Publication date: July 10, 2014Applicant: The Lubrizol CorporationInventors: Scott Capitosti, Seth L. Crawley, Ewan E. Delbridge, Patrick E. Mosier
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Patent number: 8754017Abstract: An engine fueled by natural gas may be lubricated by providing thereto a lubricant composition of an oil of lubricating viscosity, an overbased monovalent metal detergent in an amount to provide at least about 0.01 weight percent monovalent metal to the lubricant composition, wherein the monovalent metal comprises about 10 to about 30 percent by weight of the total metal content of the lubricant composition, an overbased divalent metal detergent, in an amount to provide at least about 0.005 percent by weight of the divalent metal to the lubricant composition, a dispersant, and a metal salt of a phosphorus acid. The lubricant composition has a sulfated ash of less than about 0.8 percent.Type: GrantFiled: July 13, 2009Date of Patent: June 17, 2014Assignee: The Lubrizol CorporationInventors: Virginia A. Carrick, Mayur Shah
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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: 7875577Abstract: A lubricating oil composition comprising a base oil of lubricating viscosity having a kinematic viscosity of 22 to 300 mm2/s at 40° C. and dissolved or dispersed therein the following additives in the following amounts based on a total amount of the lubricating oil composition: (1) an overbased sulfurized alkylphenol calcium salt detergent in an amount of 0.1 to 1.6 wt. % in terms of calcium content, (2) an overbased calcium alkylbenzenesulfonate detergent in an amount of 0.6 to 2.1 wt. % in terms of calcium content, (3) a nitrogen-containing ashless dispersant in an amount of 0.005 to 0.1 wt. % in terms of nitrogen content, and (4) a zinc dihydrocarbyldithiophosphate in an amount of 0.01 to 0.1 wt.Type: GrantFiled: December 20, 2006Date of Patent: January 25, 2011Assignee: Chevron Japan Ltd.Inventor: Hiroyuki Nagamatsu
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Patent number: 7732386Abstract: A rust inhibitor providing a pass in the TORT B rust test, comprising a solubility improver, a mixture of amine phosphates, and an alkenyl succinic compound. A finished lubricant comprising the rust inhibitor and a lubricating base oil. A finished lubricant having a kinematic viscosity at 40° C. between about 90 and 1700 cSt that passes the TORT B rust test, comprising a highly paraffinic base oil and a solubility improver having an aniline point less than 50° C. A finished lubricant that passes the TORT B rust test, comprising a Fischer-Tropsch wax, oligomerized olefins, or mixture thereof; and a solubility improver. A process for making a lubricant, comprising blending together: a) a mixture of amine phosphates, b) an alkenyl succinic compound, and c) a highly paraffinic lubricating base oil. A method of improving the rust inhibition of a lubricating oil by incorporating a solubility improver having an aniline point <10° C.Type: GrantFiled: October 25, 2005Date of Patent: June 8, 2010Assignee: Chevron U.S.A. Inc.Inventor: Mark E. Okazaki
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Patent number: 7510674Abstract: Dielectric fluids comprising oil fractions derived from highly paraffinic wax are provided. Further provided are processes for making these dielectric fluids comprising oil fractions derived from highly paraffinic wax. The dielectric fluids are useful as insulating and cooling mediums in new and existing power and distribution electrical apparatus, such as transformers, regulators, circuit breakers, switchgear, underground electrical cables, and attendant equipment.Type: GrantFiled: December 1, 2004Date of Patent: March 31, 2009Assignee: Chevron U.S.A. Inc.Inventors: John M. Rosenbaum, Nadine L. Yenni, Joseph M. Pudlak
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Patent number: 7183241Abstract: A lubricating oil with very low phosphorus content, and having long life as evidenced by a reduction in viscosity increase, oxidation and nitration, comprises a major amount of a base oil of lubricating viscosity and a minor amount of a mixture of neutral and overbased metallic detergents, at least a zinc dialkyldithiocarbamate and a zinc dialkyldithiophosphate antiwear additive and at least a dihydrocarbylthiocarbamoyl.Type: GrantFiled: September 19, 2003Date of Patent: February 27, 2007Assignee: ExxonMobil Research and Engineering CompanyInventor: Stanley James Cartwright
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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: 6790813Abstract: Oil compositions and formulated crankcase engine oils demonstrate improved fuel economy performance when comprising an overbased sulfonate detergent having a total base number greater than about 450 and which contain at least one other additive which includes a succinimide type dispersant. Methods for improving fuel economy employing such high TBN sulfonates and engine oil formulations and concentrates containing such are disclosed.Type: GrantFiled: November 21, 2002Date of Patent: September 14, 2004Assignee: Chevron Oronite Company LLCInventor: Alexander B. Boffa
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Publication number: 20040147414Abstract: Organo-Imino molybdenum complexes are disclosed having the formula Z2N2MOS4C2N2R4 wherein Z and R are independently selected from the group consisting of linear hydrocarbon groups, branched hydrocarbon groups, cyclic hydrocarbon groups, and mixtures thereof. The compounds are useful as friction modifiers in lubricants.Type: ApplicationFiled: January 8, 2004Publication date: July 29, 2004Inventors: Cyril A. Migdal, Paul e. Stott, Nikolai Aleksandrovich Ustynyuuk, Dmitry Nikolaievich Zaroubine, Ilia Victorovich Yampolsky, Konstantin Aleksandrovich Rufanov
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Patent number: 6727208Abstract: A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and an additive system comprising (A) from about 0.1 to about 5% by weight of a detergent composition comprising at least two metal overbased compositions wherein said detergent composition consists essentially of (A-1) at least one alkali metal overbased detergent and (A-2) at least one calcium overbased detergent, wherein the ratio of total base number on a per 100 TBN and diluent-free basis contributed by the alkali metal detergent to the total base number contributed by the calcium detergent ranges from about 99.5-20 to about 0.5-80; (B) from about 1 to about 10% by weight of a succinimide dispersant; and (C) from about 0.1 to about 5 % by weight of a metal dihydrocarbyl dithiophosphate of the formula (I) wherein R1 and R2 are each, independently, hydrocarbyl groups containing from 3 to 13 carbon atoms, M is a metal and n is an integer equal to the valence of M.Type: GrantFiled: May 23, 2002Date of Patent: April 27, 2004Assignee: The Lubrizol CorporationInventor: Melody A. Wilk
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Patent number: 6720293Abstract: A low viscosity lubricating oil composition having a CCS viscosity less than 3500 mPa.s at −25° C. and having no more than 0.16 mass % of phosphorus which comprises a dispersant, and a detergent of calcium or magnesium or both; and optionally a zinc dihydrocarbyldithiophosphate, a viscosity modifier, a pour point depressant and an antioxidant. The oil satisfies the Cummins M11 cross-head wear engine test specification in a low phosphorus and low viscosity formulation.Type: GrantFiled: September 24, 2001Date of Patent: April 13, 2004Assignee: Infineum International Ltd.Inventors: Charles H. Bovington, Christopher J. Locke, Terence Kelly
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Publication number: 20040023819Abstract: Disclosed are methods and lubricant compositions for reducing wear in internal combustion engines lubricated with a low phosphorus content lubricating oil. The lubricant compositions of this invention comprise a synergistic combination of a complex of a molybdenum/nitrogen containing compound and at least one phosphorus-containing compound wherein the total phosphorus employed in the composition is no more than about 0.06 weight percent based on the total weight of the composition.Type: ApplicationFiled: August 1, 2002Publication date: February 5, 2004Inventor: Alexander B. Boffa
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Patent number: 6605571Abstract: Concentrates for lubricating oil compositions are prepared by blending at elevated temperature: (A) at least one high molecular weight ashless dispersant; and (B) at least one oil-soluble metal detergent; in the presence of (C) at least one metal salt of a dihydrocarbylphosphorodithoic acid wherein the metal of the metal salt is an alkali metal, an alkaline earth metal, or zinc, aluminium, lead, tin, molybdenum, manganese, nickel or copper.Type: GrantFiled: April 2, 1999Date of Patent: August 12, 2003Assignee: Exxon Chemical Patents Inc.Inventors: Gary Higton, Roger Glyde, Robert A. Wilkinson
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Patent number: 6569819Abstract: Lubricant compositions comprise a lubricant base oil, and (A) a mono substituted amide type bissuccinimide in an amount from 0.5 to 20 percent by mass, (B) zinc dithiophosphate in an amount from 0.05 to 0.3 percent by mass of phosphorus, and (C) a metal-based detergent in an amount form 0.5 to 4.0 percent by mass of sulfated ash, based on the total mass of the composition. Lubricant compositions preferably further comprises (D) a dispersant type viscosity index improver in an amount from 0.1 to 20 percent by mass, based on the total mass of the composition.Type: GrantFiled: September 27, 2001Date of Patent: May 27, 2003Assignee: Nippon Mitsubishi Oil CorporationInventors: Kazuhiro Yagishita, Jinichi Igarashi, Osamu Kurosawa
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Patent number: 6559105Abstract: A composition of an antioxidant of the formula where R3 is an alkyl group of 2 to 6 carbon atoms, and a dispersant or a detergent, is a useful additive package for lubricant compositions.Type: GrantFiled: January 16, 2001Date of Patent: May 6, 2003Assignee: The Lubrizol CorporationInventors: William D. Abraham, Paul E. Adams, Gordon D. Lamb, Thomas J. Wolak, Richard A. Denis, Jody A. Kocsis, James P. Roski, Virginia A. Carrick, Susan V. Cowling
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Patent number: 6531428Abstract: A low phosphorous lubricating oil composition for internal combustion engines comprising an alkylthiocarbamate compound of the formula: wherein each of R1, R2, R3, and R4 independently represents an alkyl group of 1-18 carbon atoms, and (X) represents S, S—S, S—CH2—S, S—CH2CH2—S, S—CH2CH2CH2—S, or S—CH2CH(CH3)—S, and additive compositions and additive packages utilizing the above compound.Type: GrantFiled: April 4, 1994Date of Patent: March 11, 2003Assignee: Chevron Oronite Company LLCInventors: Morikuni Nakazato, Jiro Magarifuchi, Akihiro Mochizuki, Hiroshi Tanabe
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Publication number: 20030013620Abstract: A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and an additive system comprising (A) from about 0.1 to about 5 % by weight of a detergent composition comprising at least two metal overbased compositions wherein said detergent composition consists essentially of (A-1) at least one alkali metal overbased detergent and (A-2) at least one calcium overbased detergent, wherein the ratio of total base number on a per 100 TBN and diluent-free basis contributed by the alkali metal detergent to the total base number contributed by the calcium detergent ranges from about 99.5-20 to about 0.5-80; (B) from about 1 to about 10 % by weight of a succinimide dispersant; and (C) from about 0.1 to about 5 % by weight of a metal dihydrocarbyl dithiophosphate of the formula (I) wherein R1 and R2 are each, independently, hydrocarbyl groups containing from 3 to 13 carbon atoms, M is a metal and n is an integer equal to the valence of M.Type: ApplicationFiled: May 23, 2002Publication date: January 16, 2003Inventor: Melody A. Wilk
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Publication number: 20020107152Abstract: A low-phosphorus lubricant comprises:Type: ApplicationFiled: December 5, 2001Publication date: August 8, 2002Inventor: Robert Robson
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Patent number: 6413916Abstract: 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: June 30, 2000Date of Patent: July 2, 2002Assignee: Ashland Inc.Inventors: Richard J. Baumgart, Michael A. Dituro, Christopher J. Nonevski, Mandeep S. Saini
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Publication number: 20020058593Abstract: A low viscosity lubricating oil composition having a CCS viscosity less than 3500 mPa.s at −25° C. and having no more than 0.16 mass % of phosphorus which comprises a dispersant, and a detergent of calcium or magnesium or both; and optionally a zinc dihydrocarbyldithiophosphate, a viscosity modifier, a pour point depressant and an antioxidant. The oil satisfies the Cummins M11 cross-head wear engine test specification in a low phosphorus and low viscosity formulation.Type: ApplicationFiled: September 24, 2001Publication date: May 16, 2002Inventors: Charles H. Bovington, Christopher J. Locke, Terence Kelly
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Publication number: 20020006878Abstract: A composition of an antioxidant of the formula 1Type: ApplicationFiled: January 16, 2001Publication date: January 17, 2002Applicant: Lubrizol CorporationInventors: William D. Abraham, Paul E. Adams, Gordon D. Lamb, Thomas J. Wolak, Richard A. Denis, Jody A. Kocsis, James P. Roski, Virginia A. Carrick, Susan V. Cowling
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Patent number: 6333298Abstract: A molybdenum-free lubricating oil composition exhibiting improved fuel economy and fuel economy retention properties, which comprises: (a) a base stock oil compound of at least 50 wt. % mineral oil, the base stock oil having a viscosity of 4.0-5.5 mm2/s at 100° C., 95 wt. % or more saturates, 25 wt. % or less napthenics, a NOACK volatility of 15.9% or less, a kV of 4.0-5.5 mm2/s at 100° C. and a viscosity index of at least 120; (b) at least one calcium detergent and (c) at least one organic friction modifier, wherein the composition has a NOACK volatility of about 15 wt. % or less and contains from about 0.058 to 0.58 wt. % calcium from the calcium detergent.Type: GrantFiled: July 16, 1999Date of Patent: December 25, 2001Assignee: Infineum International LimitedInventors: Malcolm Waddoups, Rolfe J. Hartley, Taisuke Miyoshi
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Patent number: 6323162Abstract: The present invention provides for a lubricant oil composition for internal combustion engines, that resists oxidation in the presence of NOx and evaporation characteristics, and controls poisoning of a three-way catalyst system for occluding/reducing NOx and formation of deposit in an air intake system. The lubricant oil composition for internal combustion engines, comprises a base oil, which contains aromatic compounds at 1 wt. % or less, sulfur at 10 ppm or less, and paraffin and monocyclic naphthene compounds at 50 wt. % or more as total content, and has a kinematic viscosity of 2 to 50 mm2/s at 100° C. and evaporated quantity of 16 wt. % or less determined by the NOACK evaporation test, wherein the base oil is incorporated with a zinc dithiophosphate at 0.04 to 0.10 wt. % as phosphorus, a calcium phenate and/or calcium sulfonate having a total basic number of 100 to 400 mg KOH/g at 1 to 10 wt. %, and a polyalkenyl succinimide having a boron/nitrogen wt. ratio of 0 to 1.Type: GrantFiled: May 30, 2000Date of Patent: November 27, 2001Assignee: TonenGeneral Sekiyu K.K.Inventors: Sougawa Yasunori, Katsuya Arai
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Patent number: 6310010Abstract: Concentrates for lubricating oil compositions are prepared by mixing at elevated temperature: (i) at least one high molecular weight ashless dispersant; (ii) at least one oil-soluble overbased metal detergent; and (iii) at least one surface-active agent comprising a low molecular weight hydroxyl or amine group.Type: GrantFiled: April 9, 1999Date of Patent: October 30, 2001Assignee: Exxon Chemicals Patents INCInventors: Gary Higton, Jacob Emert, Robert A. Wilkinson, Isabel P. MacDonald, Karl J. Van Driesen, Salvatore Rea, James P. Stokes, Andrew J. D. Ritchie
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Publication number: 20010034305Abstract: Lubricant compositions comprises a lubricant base oil blended with a boron-containing ashless dispersant (A) in an amount of 0.035 or more percent of boron by mass, and an alkaline earth metal sulfonate having a total base number of 50 to 500 mgKOH/g (B) in an amount of 0.01 or more percent of alkaline earth metal by mass, all the percentages being based on the total mass of the composition and if necessary a phosphorus additive. The lubricant compositions are superior in effect to enhance the dynamic- and static-friction coefficients in a wet clutch.Type: ApplicationFiled: March 27, 2001Publication date: October 25, 2001Applicant: Nippon Mitsubishi Oil CorporationInventor: Hitoshi Komatsubara
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Publication number: 20010019999Abstract: A lubricating oil composition containing a base oil of lubricating viscosity, overbased sulfurized alkylphenate detergent or its calcium salt, an overbased alkylsulfonate detergent or its calcium salt, an ashless dispersant, and a zinc dialkyldithiophosphate and/or zinc diaryldithiophosphate is described. The lubricating oil composition provides improved heat stability and anti-wear performance in marine diesel engines operated under severe conditions where the cylinder liner temperature reach 200 to 260° C.Type: ApplicationFiled: February 9, 2001Publication date: September 6, 2001Inventors: Hiroyuki Nagamatsu, Shigeru Iwamoto, Hirokazu Fujita
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Patent number: 6140279Abstract: Concentrates for lubricating oil compositions are prepared by mixing at elevated temperature:(i) at least one high molecular weight ashless dispersant;(ii) at least one oil-soluble overbased metal detergent; and (iii) at least one other concentrate additive provided that the additive is first mixed with the detergent or the dispersant.Type: GrantFiled: April 9, 1999Date of Patent: October 31, 2000Assignee: Exxon Chemical Patents IncInventors: Jacob Emert, Isabel P. MacDonald
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Patent number: 6060437Abstract: A lubricating oil composition for internal combustion engines comprises:(A) a major amount of a basestock of lubricating viscosity containing from greater than 35 to less than 70 mass % of one or more PAO's, the balance preferably being one or more Group I basestocks as defined in API 1509; and(B) two or more additive components such as an ashless dispersant and a metal detergent.Type: GrantFiled: July 29, 1998Date of Patent: May 9, 2000Assignee: Exxon Chemical Patents, Inc.Inventors: Robert Robson, Trevor Anthony Brettell
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Patent number: 5767045Abstract: Hydraulic fluid compositions and additive concentrates are described that provide improved wet filtrability. The additive components comprise a mixture formed from at least (a) a zinc dihydrocarbyl dithiophosphate anti-wear agent, (b) a succinimide compound, and optionally (c) one or more alkali metal or alkaline earth metal-containing detergents.Type: GrantFiled: December 2, 1996Date of Patent: June 16, 1998Assignee: Ethyl Petroleum Additives LimitedInventor: Helen T. Ryan
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Patent number: 5672572Abstract: A lubricating oil composition having a total base number of 2 to 13 and comprising (A) 0.04 to 0.12% by weight (in terms of phosphorus), based on the whole composition, of a zinc dialkyldithiophosphate, (B) 1.0 to 3.0% by weight of a calcium sulfonate (TBN 200 to 300) and 0.3 to 2.5% by weight of a calcium salicylate (TBN 10 to 100) and (C) 50 to 2,000 ppm (in terms of molybdenum) of sulfurized oxymolybdenum dithiocarbamate containing a hydrocarbyl group having 8 to 23 carbon atoms.Type: GrantFiled: March 19, 1996Date of Patent: September 30, 1997Inventors: Katsuya Arai, Satoshi Asano, Sadao Wada
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Patent number: 5595962Abstract: A lubricant composition is disclosed which provides good antiwear characteristics in air at .gtoreq.100.degree. C. and exhibits a low friction coefficient, said composition comprising:(A) a fluorosilicone oil;(B) at least one compound selected from the group consisting of ferrocene, 1,1'-bis(diphenylphosphino) ferrocene and an N,N-disalicylidene-diaminoalkane in which the alkane portion has 3-6 carbon atoms; and(C) at least one phosphorous compound selected from the group consisting of triphenylphosphine, tri-o-tolylphosphine, 1,5-bis-diphenylphosphinopentane and a dialkyldithiophosphate salt in which the alkyl groups have 1-14 carbon atoms, wherein said components (B) and said component (C) is each present at a level of 0.01 to 0.3 percent based on the total weight of said composition.Type: GrantFiled: January 16, 1996Date of Patent: January 21, 1997Assignee: Dow Corning CorporationInventors: Gerardo Caporiccio, Hugh A. Spikes
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Patent number: 5569405Abstract: An engine oil composition having a base oil, an ashless dispersant, a metal-containing detergent, zinc dithiophosphate and a sulfur-containing phenol derivative. Examples of sulfur-containing phenol derivative include 2,4-bis{(octylthio)methyl}-o-cresol, 2,2-thiodiethylenebis{3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate}, and tridecyl 2-(3,5-di-ti-butyl-4-hydroxybenzylthio)acetate.Type: GrantFiled: August 27, 1993Date of Patent: October 29, 1996Assignee: Chevron Chemical CompanyInventors: Morikuni Nakazato, Takahiro Muramatsu, Shigeru Iwamoto
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Patent number: 5562864Abstract: A lubricating oil composition is described which comprises a major amount of an oil of lubricating viscosity and(A) at least about 1% by weight of at least one carboxylic derivative composition produced by reacting(A-1) at least one substituted succinic acylating agent containing at least about 50 carbon atoms in the substituent with(A-2) from about 0.5 equivalent up to about 2 moles, per equivalent of acylating agent (A-1), of at least one amine compound characterized by the presence within its structure of at least one HN<group; and(B) an amount of at least one alkali metal overbased salt of a carboxylic acid or a mixture of a carboxylic acid and an organic sulfonic acid sufficient to provide at least about 0.Type: GrantFiled: November 3, 1994Date of Patent: October 8, 1996Assignee: The Lubrizol CorporationInventors: Mary F. Salomon, Kirk E. Davis, Jack L. Karn, John M. Cahoon