The Nitrogen Heterocyclic Ring Has Chalcogen Bonded Directly To Ring Carbon Adjacent To Ring Nitrogen (e.g., Succinimide Compounds, Etc.) Patents (Class 508/192)
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Patent number: 8912133Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity, an additive containing a polymeric backbone and at least one amino group. The invention further provides for the additive to have dispersant and/or dispersant viscosity modifying properties. The lubricating composition is suitable for lubricating an internal combustion engine.Type: GrantFiled: November 11, 2013Date of Patent: December 16, 2014Assignee: The Lubrizol CorporationInventors: Matthew D. Gieselman, Friend L. Christopher, Preston J. Adam
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Patent number: 8901050Abstract: 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 of the general formula Si—X4 or a hydrolysis product thereof, wherein each X is independently a hydroxyl-containing group, hydrocarbyloxy-containing group, acyloxy-containing group, amino-containing group, monoalkyl amino-containing group or dialkyl amino-containing group.Type: GrantFiled: March 31, 2010Date of Patent: December 2, 2014Assignee: Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
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Patent number: 8853422Abstract: The present disclosure relates to a compound of the formula I or a tribologically acceptable salt, solvate, hydrate, or proadditive thereof, wherein R1, R2 and R4 are as defined herein. Such novel pyrrolidine, or succinimide, derivatives may be useful as friction modifiers in lubricant compositions. This disclosure also relates to a method of using such friction modifier compounds in lubricating fluid formulations to lubricate machine parts, including gear, axle, engine, and transmission parts, and to lubricant compositions containing such friction modifier compounds.Type: GrantFiled: September 6, 2013Date of Patent: October 7, 2014Assignee: Afton Chemical CorporationInventors: Roger M. Sheets, Nubar Ozbalik
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Patent number: 8809244Abstract: A lubricant composition, comprising an oil of lubricating viscosity, a dispersant comprising the condensation product of a carboxylic-functionalized polymer with an aromatic moiety through an amide, imide, or ester linkage, and an oil-soluble titanium compound, exhibits good oxidative stability.Type: GrantFiled: August 22, 2011Date of Patent: August 19, 2014Assignee: The Lubrizol CorporationInventors: Mary Galic Raguz, Virginia A. Carrick, John K. Pudelski
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Patent number: 8802604Abstract: The present invention provides a lubricating oil composition in contact with a silver-containing material, which comprises: a lubricant base oil made of a mineral base oil and/or a synthetic base oil; (A) metallic detergent; (B) one or more species of alkenyl succinimide and/or boron-containing alkenyl succinimide; and (C) zinc dialkyl dithiophosphate, wherein the content of these components to the total mass of the lubricating oil composition are defined as, (A) component: 0.12-2.0 mass % as metal content; (B) component: 0-0.03 mass % as boron content, 0.005 mass % to less than 0.08 mass % as nitrogen content, and the mass ratio (B/N) between the boron content (B) and the nitrogen content (N) is 0-0.55; and (C) component: 0.005-0.10 mass % as phosphorous content. As a lubricating oil in contact with silver-containing material, the lubricating oil composition can inhibit sulfidation corrosion of silver while containing zinc dialkyl dithiophosphate.Type: GrantFiled: August 20, 2009Date of Patent: August 12, 2014Assignee: JX Nippon Oil & Energy CorporationInventor: Kazuhiro Yagishita
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Publication number: 20140171349Abstract: A fuel economical lubricating oil composition for internal combustion engines comprises a base oil and an additive composition comprising an overbased metal-containing detergent and a molybdenum-containing friction modifier, in which the overbased metal-containing detergent comprises calcium salicylate having an alkyl group having an average carbon atom number of 14-18, at least 60 mol. % of the alkyl group having a carbon atom number of 14-18, and calcium sulfonate having an alkyl group having an average carbon atom number of 20-24, at least 60 mol. % of the alkyl group having a carbon atom number of 20-24, and/or calcium salicylate having an alkyl group having an average carbon atom number of 20-28, at least 60 mol. % of the alkyl group having a carbon atom number of 20-28.Type: ApplicationFiled: December 17, 2012Publication date: June 19, 2014Applicant: Cheveron Japan Ltd.Inventors: Nobuo Ushioda, Tsuyoshi Miyamoto, Yasuhiro Ogasawara
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Patent number: 8741824Abstract: Soot induced kinematic viscosity increase of lubricating oil compositions for diesel engines, particularly heavy duty diesel engines, equipped with EGR systems, particularly EGR systems operating in a condensing mode, can be ameliorated by addition of a phenylenediamine compound.Type: GrantFiled: July 8, 2005Date of Patent: June 3, 2014Assignee: Infineum International LimitedInventors: Dennis L. Malandro, Michael L. Alessi
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Patent number: 8658575Abstract: This invention provides a composition of insulating fluid and process for the preparation thereof that mainly contains alkyl benzenes. In addition to alkyl benzenes, the composition also contains an antioxidant, an antifoaming agent, a pour point dispersant, a corrosion inhibitor and a detergent-dispersant additive. The product of this invention has utility as an insulating fluid in electrical installations such as transformer.Type: GrantFiled: March 21, 2006Date of Patent: February 25, 2014Assignee: Council of Scientific & Industrial ResearchInventors: Arun Kumar Singh, Naval Kishore Pandey, Ashok Kumar Gupta
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Patent number: 8624038Abstract: The present disclosure relates to a compound of the formula I or a tribologically acceptable salt, solvate, hydrate, or proadditive thereof, wherein R1, R2 and R4 are as defined herein. Such novel pyrrolidine, or succinimide, derivatives may be useful as friction modifiers in lubricant compositions. This disclosure also relates to a method of using such friction modifier compounds in lubricating fluid formulations to lubricate machine parts, including gear, axle, engine, and transmission parts, and to lubricant compositions containing such friction modifier compounds.Type: GrantFiled: June 16, 2008Date of Patent: January 7, 2014Assignee: Afton Chemical CorporationInventors: Roger Sheets, Nubar Ozbalik
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Patent number: 8623797Abstract: Lubricating oil compositions having excellent friction stability comprise a base lubricating oil, an oil soluble source of phosphorus and a defined polyalkylene polyamine-based friction modifier that has been reacted with a borating agent to convert at least one secondary amine group into the corresponding boric acid ester or boric acid salt.Type: GrantFiled: June 29, 2007Date of Patent: January 7, 2014Assignee: Infineum International LimitedInventors: Raymond F. Watts, Joe R. Noles, Jr., Keith R. Gorda, Kerry L. Cogen
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Publication number: 20130324448Abstract: The present invention relates to an antiwear agent and lubricating compositions thereof. The invention further provides for a method of lubricating a driveline device application by employing a lubricating composition containing the antiwear agent.Type: ApplicationFiled: August 6, 2013Publication date: December 5, 2013Applicant: The Lubrizol CorporationInventors: Morey N. Najman, Mark R. Baker, Vera M. Marsic
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Patent number: 8598100Abstract: A lubricant additive which comprises a succinimide compound or a boronization product thereof is advantageously used for preparation of a lubricant composition which can maintain the property of anti-shudder for a long time without decreasing the transmission torque capacity or the friction coefficient between metals.Type: GrantFiled: June 23, 2004Date of Patent: December 3, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hiroaki Koshima, Shinichi Yanagi, Keiichi Narita, Hidetoshi Koga
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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: 8575080Abstract: A lubricating oil composition for diesel engines, particularly a composition with low ashes and no metals. The lubricating oil composition has exceedingly high detergency and excellent antiwear so that it is suitably used for diesel engines equipped with an apparatus for after-treatment of exhaust gas. The lubricating oil composition contains a lubricating base oil which includes a component (A): 2 to 30% by mass, based on the total amount of the composition, of a succinimide compound having an alkenyl group or an alkyl group of a number average molecular weight of 80 to 500 or a boronic compound thereof; and a component (B): 0.5 to 30% by mass, based on the total amount of the composition, of a succinimide compound having an alkenyl group of a number average molecular weight of 800 to 3,500 or a boronic compound thereof.Type: GrantFiled: July 2, 2012Date of Patent: November 5, 2013Assignees: Idemitsu Kosan Co., Ltd., Petroleum Energy Center, A Juridical Incorporated FoundationInventor: Tadashi Katafuchi
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Publication number: 20130267449Abstract: Lubricating oil composition for use in diesel engines which comprises, in the base oil, not more than 0.3% by mass of sulphated ash, from 0.01 to 0.2% by mass of nitrogen in succinimides, from 0.05 to 0.12% by mass of zinc in zinc dithiophosphates, from 0.02 to 0.3% by mass of nitrogen in amine-based anti-oxidants, and from 0.01 to 0.08% by mass of boron, which further has a total value of [(zinc amount in zinc dithiophosphates)×(nitrogen amount in succinimides)] and [(zinc amount in zinc dithiophosphates)×(nitrogen amount in amine-based anti-oxidants)] as regards the aforementioned of from 0.015 to 0.06, and which does not contain salicylate, phenate or sulphonate metallic detergents. The intention is to obtain a lubricating oil composition for use in diesel engines which does not contain a metallic detergent yet maintains excellent engine (piston) detergency while preventing DPF clogging, and which reduces valve-train wear.Type: ApplicationFiled: May 11, 2011Publication date: October 10, 2013Inventors: Kiyoshi Hanyuda, Tetsuo Wakizono
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Patent number: 8551927Abstract: The invention relates to a lubricating composition containing (a) an oil of lubricating viscosity, and (b) an oil soluble compound with a >N—R—N< group, wherein R may be a hydrocarbylene group. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.Type: GrantFiled: May 23, 2011Date of Patent: October 8, 2013Assignee: The Lubrizol CorporationInventors: Daniel J. Saccomando, Stuart L. Bartley, Shubhamita Basu
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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: 8415283Abstract: The invention provides lubricant compositions for diesel engines having a regenerative DPF, which prolong life of the DPF by inhibiting accumulation of components depositable on DPF inner walls, diesel engine systems having a regenerative DPF with prolonged life, and a method for inhibiting accumulation of components depositing on the DPF in the system. The present composition is for diesel engines having a regenerative DPF and running on diesel fuel with <10 mass ppm sulfur, contains a base oil and additives including (A) metal detergent, (B) ashless dispersant, and (C) phosphorus-based anti-wear agent, and satisfies the conditions of a sulfated ash content of 0.4-2 mass %, an atomic ratio of metal from component (A) to the total phosphorus of 0.2-3, an atomic ratio of the total boron to metal from component (A) of 0.2-2, and an atomic ratio of the total sulfur to metal from component (A) of 0-4.Type: GrantFiled: February 19, 2010Date of Patent: April 9, 2013Assignees: Nippon Oil Corporation, Japan Petroleum Energy CenterInventors: Isao Kurihara, Mineo Kagaya
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Patent number: 8400030Abstract: A dispersant additive composition, a lubricant composition containing the dispersant additive, a transmission containing the dispersant additive, and a method of providing a versatile lubricating fluid. The dispersant includes a reaction product of a hydrocarbyl substituted carboxylic acid or anhydride and an amine. The reaction product has a nitrogen content up to 10,000 ppm by weight, and a boron plus phosphorus to nitrogen ((B+P)/N) weight ratio of from 0:1 to about 0.8:1. The dispersant additive composition is effective to provide an electrical conductivity to a lubricant composition containing the dispersant additive composition and a metal detergent of less than about 1700 pS/m.Type: GrantFiled: June 11, 2012Date of Patent: March 19, 2013Assignee: Afton Chemical CorporationInventors: Hong-Zhi Tang, Mark T. Devlin, Naresh Mathur, Lee D. Saathoff, Timothy J. Henly
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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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Patent number: 8377857Abstract: A method of lubricating a cylinder liner and a crankcase in a marine diesel crosshead engine with the same lubricating oil composition. The lubricating oil composition has a TBN, as measured using ASTM D 2896-98, of 10 to 55 mg KOH/g. The lubricating oil composition comprises: at least 40 mass % of an oil of lubricating viscosity; at least one detergent; at least one dispersant; and at least one anti-wear additive.Type: GrantFiled: May 24, 2006Date of Patent: February 19, 2013Assignee: Infineum International LimitedInventors: Laurent Chambard, Laura Kosidowski
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Publication number: 20130029890Abstract: A lubricating oil composition containing a bis-type alkenyl-substituted succinimide which is prepared by reaction of succinic anhydride substituted with 2-alkenyl group having a branched structure in ?-position with alkylenepolyamine or a compound derived from the bis-type alkenyl-substituted succinimide by post-treatment in combination with a mixture of an overbased sulfonate having a C20-C24 alkyl group and an overbased salicylate having a C14-C18 alkyl group shows a high friction coefficient within a wide sliding velocity range and keeps its high anti-shudder performance for a long period of time.Type: ApplicationFiled: January 27, 2012Publication date: January 31, 2013Applicant: Chevron Oronite Company LLCInventors: Shrestha Kedar Shanker, Michio Shiga, Masami Fuchi, Takahiro Nakagawa
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Patent number: 8349775Abstract: A lubricating oil composition used in an internal combustion engine is provided. The internal combusting engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat, and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition includes: base oil of lubricating oil; a component (A) containing a boron derivative of an alkyl or alkenyl-substituted succinimide compound having a number average molecular weight of 200 to 5000; and a component (B) containing an alkaline earth metal-based detergent. The component (A) is contained by 0.01 to 0.2 mass % in terms of boron of a total amount of the composition while the component (B) is contained by 0.35 mass % or less in terms of the alkaline earth metal of the total amount of the composition.Type: GrantFiled: December 22, 2011Date of Patent: January 8, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiro Teshima, Hideki Kamano
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Publication number: 20130005622Abstract: An engine oil lubricant composition comprising a major amount of base oil and an effective amount of a zinc dialkyl dithio phosphate, a polymeric viscosity index improver and a mixture of alkaline earth metal detergents provides improved fuel efficiency while providing excellent wear in an engine.Type: ApplicationFiled: June 26, 2012Publication date: January 3, 2013Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Kristen A. Lyon, Kevin John Kelly, William L. Maxwell, Douglas Edward Deckman
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Publication number: 20130005623Abstract: A lubricating oil composition for diesel engines, particularly a composition with low ashes and no metals. The lubricating oil composition has exceedingly high detergency and excellent antiwear so that it is suitably used for diesel engines equipped with an apparatus for after-treatment of exhaust gas. The lubricating oil composition contains a lubricating base oil which includes a component (A): 2 to 30% by mass, based on the total amount of the composition, of a succinimide compound having an alkenyl group or an alkyl group of a number average molecular weight of 80 to 500 or a boronic compound thereof; and a component (B): 0.5 to 30% by mass, based on the total amount of the composition, of a succinimide compound having an alkenyl group of a number average molecular weight of 800 to 3,500 or a boronic compound thereof.Type: ApplicationFiled: July 2, 2012Publication date: January 3, 2013Applicants: PETROLEUM ENERGY CENTER, A JURIDICAL INCORPORATED FOUNDATION, IDEMITSU KOSAN CO., LTD.Inventor: Tadashi KATAFUCHI
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Patent number: 8338342Abstract: A lubricating oil composition according to the present invention is used in an internal combustion engine. The internal combustion engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition contains a component (A) that is an alkaline earth metal-based detergent. The component (A) is contained by a content of more than 0.35 mass % and 2 mass % or less of the total amount of the composition in terms of alkaline earth metal.Type: GrantFiled: March 24, 2008Date of Patent: December 25, 2012Assignee: Idemitsu Kosan Co., Ltd.Inventor: Hideki Kamano
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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: 8299003Abstract: There is disclosed herein an additive composition including a compound of formula (III): wherein R1, R2, R3, R4, R5, R6 , R7, R8, and R9are independently selected from the group consisting of hydrogen, cyano, and hydrocarbyl groups comprising from about 1 to about 30 carbon atoms.Type: GrantFiled: March 9, 2006Date of Patent: October 30, 2012Assignee: Afton Chemical CorporationInventors: David J. DeGonia, Chip Hewette, Roger M. Sheets, Ronald L. Phillips, John T. Loper
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Patent number: 8258087Abstract: A lubricating oil composition for an internal combustion engine. The lubricating oil composition includes: (A1) a lubricant base oil as a main component having a kinematic viscosity at 100 degree C. being 1 to 8 mm2/s, pour point being ?15 degree C. or less, aniline point being 100 degree C. or more, paraffinic content in saturates being 40 mass % or more, monocyclic naphthenic content being 25 mass % or less, bicyclic to hexacyclic naphthenic content being 35 mass % or less, iodine number being 2 or less, and ratio of tertiary carbon to the total carbon atoms composing the (A1) being 6.3% or more. The total mass of the composition is: (B) 0.005 to 0.5 mass % of a metallic detergent as metal content; (C1) 0.005 to 0.2 mass % of a boron-containing succinimide ashless dispersant as boron content; and (D) 0.005 to 0.2 mass % of a metal salt of phosphorus-containing acid as phosphorus content.Type: GrantFiled: December 5, 2007Date of Patent: September 4, 2012Assignee: Nippon Oil CorporationInventor: Akira Yaguchi
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Publication number: 20120214718Abstract: The present invention relates to a method for lubricating a driveline device comprising supplying to the driveline device a lubricating composition comprising an oil of lubricating viscosity and an antiwear package wherein the antiwear package comprises (a) a derivative of a hydroxycarboxylic acid, and (b) a phosphorus compound selected from the group consisting of an amine salt of a phosphate hydrocarbon ester, a phosphite having at least one hydrocarbyl group with 4 or more carbon atoms, and mixtures thereof.Type: ApplicationFiled: August 11, 2010Publication date: August 23, 2012Applicant: THE LUBRIZOL CORPORATIONInventors: Morey N. Najman, Mark R. Baker, Vera M. Marsic
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Publication number: 20120184472Abstract: The present disclosure relates to a lubricant composition comprising a first phosphorus compound, a second phosphorus compound, and a third phosphorus compound, wherein the first phosphorus compound is present in the lubricant composition in an amount to provide between about 120 and 350 ppm phosphorus. The lubricant composition may provide robust anti-wear and reduced pitting.Type: ApplicationFiled: March 27, 2012Publication date: July 19, 2012Applicant: AFTON CHEMICAL CORPORATIONInventor: Jeffrey L. Milner
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Patent number: 8183187Abstract: The present invention provides a lubricating composition comprising (a) an oil of lubricating viscosity; (b) a friction modifier; (c) a corrosion inhibitor; (d) an antiwear agent; and (e) a product prepared by heating together: (i) a dispersant; (ii) 2,5-dimercapto-1,3,4-thiadiazole or a hydrocarbyl-substituted 2,5-dimercapto-1,3,4-thiadiazole, or oligomers thereof; (iii) a borating agent;and (iv) optionally a dicarboxylic acid of an aromatic compound selected from the group consisting of 1,3 diacids and 1,4 diacids, or (v) optionally a phosphorus acid compound, said heating being sufficient to provide a product of (i), (ii), (iii) and optionally (iv), which is soluble in an oil of lubricating viscosity. The invention further provides a use for the lubricating composition in a transmission.Type: GrantFiled: February 8, 2006Date of Patent: May 22, 2012Assignee: The Lubrizol CorporationInventors: James L. Sumiejski, Craig D. Tipton
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Patent number: 8163681Abstract: A lubricant composition of a synthetic oil of lubricating viscosity, 3 to 6 percent by weight of a nitrogen-containing dispersant, 1 to 2.5 weight percent of an overbased magnesium detergent, 1 to 5 weight percent of an antioxidant; and 0.25 to 1.5 weight percent of a friction modifier is useful for lubricating a hydrogen-fueled engine. The composition will typically contain less than 0.01 weight percent Ca, less than 0.01 weight percent Zn, less than 0.06 weight percent P, and will have a sulfated ash level of less than 1.2%.Type: GrantFiled: December 13, 2007Date of Patent: April 24, 2012Assignee: The Lubrizol CorporationInventors: Ewa Bardasz, William B. Chamberlain
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Publication number: 20120090568Abstract: A lubricating oil composition used in an internal combustion engine is provided. The internal combusting engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat, and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition includes: base oil of lubricating oil; a component (A) containing a boron derivative of an alkyl or alkenyl-substituted succinimide compound having a number average molecular weight of 200 to 5000; and a component (B) containing an alkaline earth metal-based detergent. The component (A) is contained by 0.01 to 0.2 mass % in terms of boron of a total amount of the composition while the component (B) is contained by 0.35 mass % or less in terms of the alkaline earth metal of the total amount of the composition.Type: ApplicationFiled: December 22, 2011Publication date: April 19, 2012Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Kazuhiro TESHIMA, Hideki KAMANO
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Patent number: 8153565Abstract: A lubricant composition for a final drive axle oil comprising an oil of lubricating viscosity, one or more dispersants and one or more phosphorus compounds wherein the kinematic viscosity of the lubricant composition at 100° C. is greater than 10 mm2/s and wherein the amount by weight of the dispersant is greater than the amount by weight of the phosphorus compounds and any sulfur compounds which may optionally be present.Type: GrantFiled: December 15, 2006Date of Patent: April 10, 2012Assignee: The Lubrizol CorporationInventors: Craig D. Tipton, Thomas A. Tagliamonte
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Patent number: 8093188Abstract: An ashless lubricating oil, comprising a base oil having a viscosity index greater than 150, wherein the base oil is made from a blend of petroleum-based wax and Fischer-Tropsch derived wax.Type: GrantFiled: December 23, 2009Date of Patent: January 10, 2012Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Mark E. Okazaki
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Publication number: 20110239970Abstract: 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: ApplicationFiled: March 31, 2010Publication date: October 6, 2011Applicant: Chevron Oronite Company LLCInventors: Keneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
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Publication number: 20110239971Abstract: 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 of the general formula Si—X4 or a hydrolysis product thereof, wherein each X is independently a hydroxyl-containing group, hydrocarbyloxy-containing group, acyloxy-containing group, amino-containing group, monoalkyl amino-containing group or dialkyl amino-containing group.Type: ApplicationFiled: March 31, 2010Publication date: October 6, 2011Applicant: Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
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Publication number: 20110245117Abstract: Disclosed is a method for improving compatibility of a fluorocarbon elastomer seal with 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 fluorocarbon elastomer compatibility improving agents comprising one or more oil-soluble titanium compounds.Type: ApplicationFiled: March 31, 2010Publication date: October 6, 2011Applicant: Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
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Patent number: 8030255Abstract: The present invention provides lubricating oil compositions having excellent anti-wear properties and anti-fatigue properties as well as excellent low temperature fluidity, particularly suitable for automatic transmissions and/or continuously variable transmissions, and internal combustion engines. The compositions comprises (A) a base oil with a kinematic viscosity at 100° C. of 1 to 8 mm2/s, a pour point of ?15° C. or lower, an aniline point of 100° C. or higher, the saturates of the base oil containing 40 percent by mass or more of paraffins, 25 percent by mass or less of one ring naphthenes, and 35 percent by mass or less of two to six ring naphthenes, as the main component, and (B) 0.005 to 0.4 percent by mass of a metallic detergent, (C) 0.005 to 0.2 percent by mass in terms of nitrogen of a succinimide-type ashless dispersant, (D) 0.005 to 0.2 percent by mass in terms of phosphorus of a phosphorus-containing anti-wear agent, and (E) 0.Type: GrantFiled: June 1, 2007Date of Patent: October 4, 2011Assignee: Nippon Oil CorporationInventors: Shigeki Matsui, Hitoshi Komatsubara
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Publication number: 20110237472Abstract: 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: ApplicationFiled: June 6, 2011Publication date: September 29, 2011Applicant: THE LUBRIZOL CORPORATIONInventor: Charla A. Ramsey
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Patent number: 8026199Abstract: The present invention provide a lubricating oil composition suitable for internal combustion engines, which composition is excellent in thermal/oxidation stability and can inhibit the increases of the viscosity and acid number even in the presence of NOx and can be used for a long period of time or provide a lubricating oil composition particularly suitable for diesel or direct injection engines equipped with an exhaust-gas after-treatment device such as DPF or various catalysts, which composition is excellent in high-temperature detergency and base number retention properties and further can achieve the effect of inhibit wear caused by soot contamination in the oil occurring significantly when the content of phosphorus compounds such as ZnDTP is decreased, at a high level and can inhibit the exhaust-gas after-treatment device from being adversely affected.Type: GrantFiled: November 1, 2007Date of Patent: September 27, 2011Assignee: Nippon Oil CorporationInventors: Shigeki Matsui, Koji Hoshino, Shigeki Takeshima
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Patent number: 8022021Abstract: The present invention relates to a controlled release gel with an ashless component and defined ash-producing component. Further, the invention relates to the use of a controlled release gel with a controlled level of ash-producing (i.e., metal) components for delivery of additives into lubricants wherein the gel has reduced ash and SAPS producing components.Type: GrantFiled: February 5, 2007Date of Patent: September 20, 2011Assignee: The Lubrizol CorporationInventors: James D. Burrington, Lewis A. Williams, Jack C. Kelley, David A. McCaughey, Frank M. van Lier, David B. Skursha
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Publication number: 20110212863Abstract: The present invention provides a lubricating oil composition in contact with a silver-containing material, which comprises: a lubricant base oil made of a mineral base oil and/or a synthetic base oil; (A) metallic detergent; (B) one or more species of alkenyl succinimide and/or boron-containing alkenyl succinimide; and (C) zinc dialkyl dithiophosphate, wherein the content of these components to the total mass of the lubricating oil composition are defined as, (A) component: 0.12-2.0 mass % as metal content; (B) component: 0-0.03 mass % as boron content, 0.005 mass % to less than 0.08 mass % as nitrogen content, and the mass ratio (B/N) between the boron content (B) and the nitrogen content (N) is 0-0.55; and (C) component: 0.005-0.10 mass % as phosphorous content. As a lubricating oil in contact with silver-containing material, the lubricating oil composition can inhibit sulfidation corrosion of silver while containing zinc dialkyl dithiophosphate.Type: ApplicationFiled: August 20, 2009Publication date: September 1, 2011Inventor: Kazuhiro Yagishita
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Patent number: 7981846Abstract: A lubricating oil composition comprising a major amount of an oil of lubricating viscosity, an alkaline earth metal borated sulfonate detergent, and, optionally, a molybdenum-containing compound, wherein the lubricating oil composition comprises no more than 0.12 wt % phosphorus and the amount of sulfated ash in the lubricating oil is not more than 1.25 wt %.Type: GrantFiled: November 30, 2005Date of Patent: July 19, 2011Assignee: Chevron Oronite Company LLCInventors: Alexander B. Boffa, Ralph Eric Olsen, Willem Van Dam
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Patent number: 7960318Abstract: The present invention provides a lubricating oil composition comprising a lube base oil comprising a mineral oil and/or a synthetic oil; (A) an alkenylsuccinimide or an alkylsuccinimide and/or a boron-containing derivative thereof in an amount of 0.01 to 0.14% by mass based on the composition in terms of the nitrogen content as an ashless dispersant, wherein an alkenylsuccic acid monoimide or an alkylsuccinic acid monoimide and/or a boron-containing derivative thereof in the ashless dispersant is 0.05% by mass or less in terms of nitrogen content; and (B) a dialkyldiphenylamine compound in an amount of 0.3 to 5.0% by mass and a hindered phenol compound in an amount of 0 to 2.5% by mass based on the composition as an antioxidant, and (C) a sulfated ash of the lubricating oil composition is 1.2% by mass or less.Type: GrantFiled: December 21, 2005Date of Patent: June 14, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hideki Kamano, Motoharu Ishikawa, Kazuhiro Teshima
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Patent number: 7960319Abstract: A lubricating oil composition favorably employable for trunk piston diesel engines contains an overbased sulfurized alkylphenol calcium salt, at least two (preferably three) overbased alkylsalicylic acid calcium salts having different base ratios and hydrocarbyl groups of different carbon atom numbers, a borated ashless dispersant, and a zinc dihydrocarbyldithiophosphate.Type: GrantFiled: December 13, 2007Date of Patent: June 14, 2011Assignee: Chevron Japan Ltd.Inventor: Hiroyuki Nagamatsu
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Patent number: 7956021Abstract: 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 0.5 to 1.0 wt. % in terms of calcium content, (2) an overbased calcium alkylbenzenesulfonate detergent in an amount of 1.5 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 0.007 to 0.1 wt.Type: GrantFiled: December 19, 2006Date of Patent: June 7, 2011Assignee: Chevron Japan Ltd.Inventor: Hiroyuki Nagamatsu
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Publication number: 20110092401Abstract: 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: ApplicationFiled: December 17, 2010Publication date: April 21, 2011Inventor: Juan A. Buitrago
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Patent number: 7906465Abstract: A lubricant composition comprising a detergent and a base oil comprising less than about 3% by weight of tetracycloparaffins is disclosed. Methods of making and using the composition are also disclosed.Type: GrantFiled: July 14, 2006Date of Patent: March 15, 2011Assignee: Afton Chemical Corp.Inventors: Mark T. Devlin, Tze-chi Jao