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: 6890890Abstract: 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: GrantFiled: August 21, 2003Date of Patent: May 10, 2005Assignee: The Lubrizol CorporationInventor: Michael P. Gahagan
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Patent number: 6855675Abstract: A lubricating oil composition that has excellent antiwear properties and is especially useful for internal combustion engine comprises a lubricating base oil and contains the following components: sulfoxymolybdenum dithiocarbamate, zinc dialkyldithiophosphate and a mixture of 100 to 50% by weight of calcium alkylsalicylate and 0 to 50% by weight of magnesium alkylsalicylate, the amount of molybdenum derived from the sulfoxymolybdenum dithiocarbamate being from 200 to 1000 ppm (weight basis) of the total weight of the composition, the amount of phosphorus derived from the zinc dialkyldithiophosphate being from 0.04 to 15% by weight of the total weight of the composition, and the total amount of the calcium alkylsalicylate and the magnesium alkylsalicylate being from 1 to 10% by weight of the total weight of the composition.Type: GrantFiled: May 24, 1995Date of Patent: February 15, 2005Assignee: TonenGeneral Sekiyu K.K.Inventors: Michiya Yamada, Satoshi Asano, Hirotaka Tomizawa
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Patent number: 6828286Abstract: Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) wherein R1 and R2 may be the same or different and are each independently a hydrocarbon group having 8 to 30 carbon atoms, R3 and R4 may be the same or different and are each independently a hydrocarbon group having 1 to 4 carbon atoms, R5 is hydrogen or a hydrocarbon group having 1 to 30 carbon atoms, n is an integer from 1 to 7. The lubricant compositions have a long-lasting anti-shudder property, an enhanced transmission capacity for a wet clutch, and an excellent shifting property.Type: GrantFiled: April 10, 2003Date of Patent: December 7, 2004Assignee: Nippon Mitsubishi Oil CorporationInventors: Kenichi Komiya, Naozumi Arimoto, Noboru Ishida, Shinichi Shirahama, Eitaro Morita
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Patent number: 6828285Abstract: An oil composition for heat treatment of a gear which comprises mineral oil having a kinematic viscosity of 5 to 40 mm2/second at 100° C. as a base oil and, based on a total amount of the composition, 0.01 to 5% by weight of (a) a phosphoric acid ester compound and, where necessary, 0.5 to 10% by weight of (b) one compound selected from alkenylsuccinimide compounds, alkylsuccinimide compounds and addition products of boron with alkenylsuccinimide compounds or alkylsuccinimide compounds and 0.5 to 10% by weight of (c) at least one compound selected from salicylates, phenates and sulfonates of alkaline earth metals. A coating film is formed on the surface of a gear simultaneously with hardening of the gear and the gear can be provided with resistance to pitching.Type: GrantFiled: February 14, 2003Date of Patent: December 7, 2004Assignee: Idemitsu Kosan Co., Ltd.Inventor: Eiichi Nakamura
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Publication number: 20040242433Abstract: The present invention is directed to a lubricating oil composition comprising a major amount of a base oil of lubricating viscosity and a minor amount of each of the following:Type: ApplicationFiled: April 28, 2004Publication date: December 2, 2004Applicant: Chevron Oronite Company LLCInventors: Stephen H. Roby, Richard J. Mayer, Susanne G. Ruelas
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Publication number: 20040235682Abstract: The present invention provides engine lubricants for low emission diesel engines featuring low levels of ash, sulfur and phosphorus. Specifically, this invention provides a low emission diesel lubricant comprising from about 0 wt. % to about 1.2 wt. % ash; from about 0.1 wt. % to about 0.5 wt. % sulfur; and from about 0.02 wt. % to about 0.1 wt. % phosphorus. Said lubricant may also comprise a novel unsulfurized, carboxylate-containing additive for lubricating oils, comprising a mixture of alkaline earth metal salts (hydrocarbyl phenate/hydrocarbyl salicylate) and a reduced amount of unreacted hydrocarbyl phenols, in which said hydrocarbyl salicylate is primarily single-aromatic-ring hydrocarbyl salicylate. The invention also provides a method for producing said additive and said LEDL.Type: ApplicationFiled: May 22, 2003Publication date: November 25, 2004Applicants: Chevron Oronite Company LLC, Chevron Oronite Technology B.V.Inventors: Willem Van Dam, Eugene Spala, Peter Kleijwegt, Jeroen Van Leeuwen
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Patent number: 6815401Abstract: An oil composition for heat treatment of a gear which comprises mineral oil having a kinematic viscosity of 5 to 40 mm2/second at 100° C. as a base oil and, based on a total amount of the composition, 0.01 to 5% by weight of (a) a phosphoric acid ester compound and, where necessary, 0.5 to 10% by weight of (b) one compound selected from alkenylsuccinimide compounds, alkylsuccinimide compounds and addition products of boron with alkenylsuccinimide compounds or alkylsuccinimide compounds and 0.5 to 10% by weight of (c) at least one compound selected from salicylates, phenates and sulfonates of alkaline earth metals. A coating film is formed on the surface of a gear simultaneously with hardening of the gear and the gear can be provided with resistance to pitching.Type: GrantFiled: October 23, 2001Date of Patent: November 9, 2004Assignee: Idemitsu Kosan Co., Ltd.Inventor: Eiichi Nakamura
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Publication number: 20040209783Abstract: This invention relates to lubricating oil compositions that have surprisingly been shown to reduce the formation of lacquer deposits in engines. More specifically, this invention relates to a lubricating oil for natural gas engines that reduces siloxane-related cylinder liner lacquer deposits.Type: ApplicationFiled: April 18, 2003Publication date: October 21, 2004Inventors: Paul P. Wells, Vincent Mark Carey, Kevin John Kelly
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Patent number: 6800596Abstract: An improved dispersant is prepared by cross-linking a succinimide under Mannich reaction conditions with a polyphenolic compound. The amount of cross-linking, and the resulting size of the reaction product dispersant can be varied by varying the molecular equivalent ratios of succinimide and polyphenol. Lubricating oils containing the dispersant of the reaction product display superior performance.Type: GrantFiled: May 9, 2003Date of Patent: October 5, 2004Assignee: Afton Chemical Intangibles, LLCInventor: John T. Loper
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Publication number: 20040176258Abstract: Lubricating oil compositions particularly suitable for automatic transmissions comprising a lubricating base oil, (A) a boron-containing ashless dispersant in an amount of 0.02 to 0.1 percent by mass in terms of boron, based on the total mass of the composition, (B) an alkaline earth metal-based detergent with a base number of 0 to 500 mgKOH/g in an amount of 0.01 percent by mass or more in terms of alkaline earth metal, based on the total mass of the composition, and (C) an alkali metal borate or a hydrate thereof and having excellent anti-wear properties and improved fatigue life by inhibiting pitching.Type: ApplicationFiled: March 10, 2004Publication date: September 9, 2004Applicant: Nippon Oil CorporationInventor: Eitaro Morita
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Publication number: 20040171500Abstract: Lubricating oil compositions particularly suitable for automatic transmissions comprising a lubricating base oil, (A) a boron-containing ashless dispersant in an amount of 0.004 to 0.05 percent by mass in terms of boron, based on the total mass of the composition, (B) an alkaline earth metal-based detergent with a base number of 0 to 500 mgKOH/g in an amount of 0.01 percent by mass or more in terms of an alkaline earth metal, based on the total mass of the composition, and (C) a sulfur-based additive in an amount of 0.01 to 0.3 percent by mass in terms of sulfur, based on the total mass of the composition and having excellent anti-wear properties and improved fatigue life by inhibiting pitching.Type: ApplicationFiled: March 10, 2004Publication date: September 2, 2004Applicant: Nippon Oil CorporationInventor: Eitaro Morita
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Lubricating oil composition comprising borated and EC-treated succinimides and phenolic antioxidants
Patent number: 6784142Abstract: An additive package comprising one or more borated dispersants, one or more EC-treated dispersants, and one or more phenolic antioxidants; a lubricating oil composition comprising said additive package; and a method of controlling bearing corrosion and valve train wear using said lubricating oil.Type: GrantFiled: February 14, 2003Date of Patent: August 31, 2004Assignees: Chevron Oronite Company LLC, Chevron Oronite Technology B.V.Inventors: Willem Van Dam, Peter Kleijwegt -
Patent number: 6774092Abstract: Disclosed is an additive composition that can be mixed with various types of basic oils to produce a lubricant that can meet the international standards of manual truck gearbox oils. A preferred embodiment includes various quantities of an isobutylene sulfide, zinc dialklydithiophosate and other components. Component properties of the additive composition are selected to produce a lubricant that has good thermal stability, rust-resisting and endurance qualities and that has a low cost of use and production.Type: GrantFiled: August 16, 2002Date of Patent: August 10, 2004Assignee: PetroChina Company, Ltd.Inventors: Xisheng Fu, Xiuling Hua
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Patent number: 6743759Abstract: This invention relates to improved antioxidant antiwear/extreme pressure compositions consisting of (a) methylenebis(di-n-butyldithiocarbamate) and (b) a diphenylamine derivative of tolutriazole or benzotriazole wherein the (a):(b) mass precent ratio ranges from above about 4:1 to about 50:1 and lubricating compositions containing same.Type: GrantFiled: November 19, 2002Date of Patent: June 1, 2004Assignee: R.T. Vanderbilt Company, Inc.Inventors: Brian W. Stunkel, Thomas J. Karol, Steven G. Donnelly
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Patent number: 6743757Abstract: A dispersant that is a reaction product of a polyalkenyl-substituted mono- or dicarboxylic acid, anhydride or ester; and a polyamine, wherein the reaction product has from greater than about 1.3 to less than about 1.7 mono- or di-carboxylic acid producing moieties per polyalkenyl moiety, and the polyalkenyl moiety has a number average molecular weight of at least about 1800, and a molecular weight distribution (Mw/Mn) of from about 1.5 to about 2.0.Type: GrantFiled: December 6, 2001Date of Patent: June 1, 2004Assignee: Infineum International Ltd.Inventors: Ian A. W. Bell, Jacob Emert, Raymond Fellows, Antonio Gutierrez, Robert Robson
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Publication number: 20040102335Abstract: Lubricating oils containing an additive formulation including at least one sulphonate, saligenin and salixarate detergent provide improved wear performance and decreased sulphur and phosphorus emissions.Type: ApplicationFiled: November 25, 2002Publication date: May 27, 2004Applicant: The Lubrizol CorporationInventors: Virginia A. Carrick, William D. Abraham, Gordon D. Lamb, R. Ian Wilby, James P. Roski
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Patent number: 6734148Abstract: A boron-containing dispersant composition containing one or more dispersants that are the reaction product of a polyalkenyl-substituted mono- or dicarboxylic acid, anhydride or ester; and a polyamine, in which at least one of the dispersants has a polyalkenyl moiety with a number average molecular weight of at least about 1800, and from greater than about 1.3 to about 1.7 mono- or di-carboxylic acid producing moieties per polyalkenyl moiety; and in which a ratio of wt. % of boron to wt. % of nitrogen (B/N) for the dispersant composition is from about 0.05 to about 0.24.Type: GrantFiled: December 6, 2001Date of Patent: May 11, 2004Assignee: Infineum International Ltd.Inventors: Ian A. W. Bell, Jacob Emert, Raymond Fellows, Antonio Gutierrez, Robert Robson
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Publication number: 20040087451Abstract: The present invention is directed to a lubricating oil composition comprising a major amount of a base oil of lubricating viscosity and a minor amount of each of the following:Type: ApplicationFiled: October 31, 2002Publication date: May 6, 2004Inventors: Stephen H. Roby, Richard J. Mayer, Susanne G. Ruelas
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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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Patent number: 6719861Abstract: A terpolymer comprising monomer units derived from an olefin having more than 40 carbon atoms, maleic anhydride, and an alkylallyl polyglycol ether of the formula R—(OCH2CH2)nO—CH2—CH═CH2 where n=3-20 and R=C1-C4-alkyl.Type: GrantFiled: December 18, 2002Date of Patent: April 13, 2004Assignee: Clariant GmbHInventors: Peter Klug, Ralf Bender
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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: 20040038833Abstract: The present invention concerns a lubricating oil composition comprising an oil of lubricating viscosity; about 0.05 to about 5 weight percent of an organo molybdenum compound; and about 0.1 to about 12 weight percent of a borated polyisobutenyl mono- and bis-succinimide wherein the polyisobutenyl group has a molecular weight (Mn) from about 500 to about 2300.Type: ApplicationFiled: January 28, 2003Publication date: February 26, 2004Inventors: Douglas E. Deckman, William H. Buck, William D. Maxwell, Mark D. Winemiller, David J. Baillargeon
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Patent number: 6689723Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, at least one organic polysulfide comprising less than about 88% dihydrocarbyl trisulfide, from up to about 5% dihydrocarbyl disulfide, and more than about 7 wt. % dihydrocarbyl higher polysulfides, and at least one phosphorus or boron compound, or mixtures of two or more thereof. The invention also relates to concentrates and greases containing the above combination. The invention also relates to methods of making the organic polysulfide.Type: GrantFiled: March 5, 2002Date of Patent: February 10, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: William T. Sullivan, Percy Rohinton Kanga, Thomas Smith Coolbaugh
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Publication number: 20040005988Abstract: A lubricating oil composition for automatic transmission comprises a base oil having a pour point of −25° C. or lower and a kinematic viscosity of 2 to 7 mm2/s at 100° C., (A) a over-based calcium sulfonate having a total base number of 300 to 500 mg KOH/g, (B) a succinimide having boron atom and/or a succinimide having no boron atom, which are substituted with a hydrocarbon group (an alkyl groups or alkenyl groups having an average molecular weight of 1,000 to 3,500), and, and (C) a phosphorous acid ester-based compound, each in a specific amount. The composition has a great statical friction coefficient (&mgr;s), an excellent transmission torque capacity and a friction characteristic having a &mgr; ratio of 1 or smaller, exhibiting excellent resistance to transmission shock on clutching.Type: ApplicationFiled: April 29, 2003Publication date: January 8, 2004Applicants: HONDA GIKEN KOGYO KABUSHIKI KAISHA, Idemitsu Kosan Co., Ltd.Inventors: Nobuaki Watanabe, Toshihiko Ichihashi, Tomonori Yamane, Junpei Yoshida
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Publication number: 20030224948Abstract: An additive formulation comprising one or more ec-treated dispersants, borated dispersants, and a dispersed aromatic dicarboxylic acid corrosion inhibitor; a dispersant inhibitor package comprising one or more ec-treated dispersants, borated dispersants, and a dispersed aromatic dicarboxylic acid corrosion inhibitor; a lubricating oil comprising said dispersant inhibitor package; and a method for lubricating engines.Type: ApplicationFiled: February 14, 2003Publication date: December 4, 2003Inventors: Willem Van Dam, Michael T. Menasco, James J. Harrison, Mark R. Logan
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Publication number: 20030220206Abstract: Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) 1Type: ApplicationFiled: April 10, 2003Publication date: November 27, 2003Applicant: Nippon Mitsubishi Oil CorporationInventors: Kenichi Komiya, Naozumi Arimoto, Noboru Ishida, Shinichi Shirahama, Eitaro Morita
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Patent number: 6638897Abstract: The lubricating oil of the present invention exhibits an excellent effect of agglomerating solid impurity particles it contains to a sufficiently large size as to be captured and removed by an oil filter.Type: GrantFiled: July 9, 1999Date of Patent: October 28, 2003Assignee: TonenGeneral Sekiyu K.K.Inventors: Satoshi Ogano, Nobuchika Kawagoishi, Makota Yoneda, Toshiaki Kuribayashi
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Publication number: 20030191031Abstract: A combination of an ashless dispersant comprising the reaction product of a succinic anhydride and a polyamine and an ashless rust inhibitor comprising a mixture of a succinic anhydride and a oxime substituted aromatic compound in a lubricant base stock along with a poly alkylene alcohol demulsifier provides a circulating oil composition having good demulsibility, deposit control and rust inhibition.Type: ApplicationFiled: January 28, 2003Publication date: October 9, 2003Inventors: Kevin Buzdygon, Angela Stefana Galiano-Roth
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Patent number: 6627584Abstract: The present invention provides a power transmission lubricating composition containing a base oil, a dispersant, a lubricant additive produced by the reaction of a dihydrocarbyldithio-phosphoric acid and a hydrocarbyl acrylate, and optionally a viscosity index improver. Improved friction performances in automatic and continuously variable transmissions are achieved by utilizing the fluids of the present invention in ash-free lubricating oil compositions for transmissions and axles.Type: GrantFiled: January 28, 2002Date of Patent: September 30, 2003Assignee: Ethyl CorporationInventor: Nubar Ozbalik
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Patent number: 6624123Abstract: A hydraulic oil, a predominant amount of an oil having a viscosity suitable for lubrication, and from 0.03% to 0.06% of an agent improving filterability, corresponding to the formula R—Z. Z represents an ester of succinic acid comprising the reaction product of a succinic anhydride and an aliphatic polyhydric alcohol; or a succinimide comprising the reaction product of a succinic anhydride and a polyamine, the said reaction product being treated with an after-treatment agent. R represents a polyolefin having a molecular weight (Mn) of 500 to 2500 and an Mw/Mn ratio of 1 to 5.Type: GrantFiled: December 11, 1998Date of Patent: September 23, 2003Assignee: Chevron Chemical S.A.Inventors: Olivier Pascal Marie Clement, Christophe Le Sausse, Dominique Batelier, Jacques Cazin
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Publication number: 20030176296Abstract: The present invention concerns a lubricating oil composition comprising an oil of lubricating viscosity; about 0.05 to about 5 weight percent of an organo molybdenum compound; and about 0.1 to about 12 weight percent of a borated polyisobutenyl mono- and bis-succinimide wherein the polyisobutenyl group has a molecular weight (Mn) from about 500 to about 2300.Type: ApplicationFiled: December 12, 2002Publication date: September 18, 2003Inventors: Douglas Edward Deckman, William H. Buck, William L. Maxwell, Mark D. Winemiller, David J. Baillargeon
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Lubricating oil composition comprising borated and EC-treated succinimides and phenolic antioxidants
Publication number: 20030171224Abstract: An additive package comprising one or more borated dispersants, one or more EC-treated dispersants, and one or more phenolic antioxidants; a lubricating oil composition comprising said additive package; and a method of controlling bearing corrosion and valve train wear using said lubricating oil.Type: ApplicationFiled: February 14, 2003Publication date: September 11, 2003Inventors: Willem Van Dam, Peter Kleijwegt -
Publication number: 20030171222Abstract: This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, at least one organic polysulfide comprising less than about 88% dihydrocarbyl trisulfide, from up to about 5% dihydrocarbyl disulfide, and more than about 7 wt. % dihydrocarbyl higher polysulfides, and at least one phosphorus or boron compound, or mixtures of two or more thereof. The invention also relates to concentrates and greases containing the above combination. The invention also relates to methods of making the organic polysulfide.Type: ApplicationFiled: March 5, 2002Publication date: September 11, 2003Inventors: William T. Sullivan, Percy Rohinton Kanga, Thomas Smith Coolbaugh
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Publication number: 20030171223Abstract: The present invention concerns friction reducers for use in lubricating oil compositions which comprise certain groups of aromatic compounds, esters, narrow mixtures of base stocks, and/or amorphous polymers such as amorphous olefin copolymers. These compositions can provide substantial reductions in the coefficient of friction and fuel economy improving benefits when admixed to lubricating oils without deleterious effects such as instability, undesirable high viscosities and deposits. In one aspect of the invention, pentaerythritol esters and optionally triol esters are added to lubricating oil compositions to provide reduced friction and improved fuel economy. In a second aspect of the invention, similar results are obtained by adding hydrocarbyl aromatics to a lubricating oil composition containing one or more of Groups II and III base stock. In a third aspect, the invention concerns a lubricating oil composition comprising an amorphous olefin copolymer and one or more of Groups II and III base stocks.Type: ApplicationFiled: January 30, 2003Publication date: September 11, 2003Inventors: Mark D. Winemiller, Douglas E. Deckman, William L. Maxwell, William H. Buck, David J. Baillargeon
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Patent number: 6617396Abstract: A process is provided for preparing a mixture of (1) a copolymer of a polyalkene and an unsaturated acidic reagent and (2) a polyalkenyl derivative of an unsaturated acidic reagent, said process comprising (a) copolymerizing (1) a polyalkene containing alkylvinylidene isomer and non-alkylvinylidene isomers and (2) an unsaturated acidic reagent under polymerization conditions in the presence of a free radical initiator; and (b) reacting the product of step (a) with an unsaturated acidic reagent at elevated temperature in the presence of a strong acid. The product of the process can be used to make polysuccinimides that are useful in lubricating oil compositions.Type: GrantFiled: November 3, 2000Date of Patent: September 9, 2003Assignee: Chevron Oronite Company LLCInventors: James J. Harrison, William R. Ruhe, Jr.
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Patent number: 6617286Abstract: To provide a lubricating oil composition for continuously variable transmission which ensures both a high coefficient of friction between metals required for a push belt-type CTV oil and excellent oxidation stability guaranteeing the performance over a long time. A lubricating oil composition for continuously variable transmission is provided, which comprises a lubricating base oil made of a mineral oil and/or a synthetic oil formulated with a wear preventive a metal detergent and an ashless dispersant, wherein the ashless dispersant is made of a boron-containing succinimide having boron at a rate of one or more atoms in one molecule of the ashless dispersant.Type: GrantFiled: June 5, 2001Date of Patent: September 9, 2003Assignee: Tonen General Sekiyu K.K.Inventors: Takehisa Sato, Takanori Kugimiya
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Patent number: 6617287Abstract: A novel lubricating composition for manual transmissions with improved performance with sintered synchronized components. The lubricating oil composition contains high level of an alkaline earth sulfonate and amine phosphates.Type: GrantFiled: October 22, 2001Date of Patent: September 9, 2003Assignee: The Lubrizol CorporationInventors: Michael P. Gahagan, Brian M. O'Connor
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Publication number: 20030166474Abstract: The present invention concerns friction reducers for use in lubricating oil compositions which comprise certain groups of aromatic compounds, esters, narrow mixtures of base stocks, and/or amorphous polymers such as amorphous olefin copolymers. These compositions can provide substantial reductions in the coefficient of friction and fuel economy improving benefits when admixed to lubricating oils without deleterious effects such as instability, undesirable high viscosities and deposits. In one aspect of the invention, pentaerythritol esters and optionally triol esters are added to lubricating oil compositions to provide reduced friction and improved fuel economy. In a second aspect of the invention, similar results are obtained by adding hydrocarbyl aromatics to a lubricating oil composition containing one or more of Groups II and III base stock. In a third aspect, the invention concerns a lubricating oil composition comprising an amorphous olefin copolymer and one or more of Groups II and III base stocks.Type: ApplicationFiled: January 30, 2003Publication date: September 4, 2003Inventors: Mark D. Winemiller, Douglas E. Deckman, William L. Maxwell, William H. Buck, David J. Baillargeon
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Publication number: 20030166473Abstract: The present invention concerns friction reducers for use in lubricating oil compositions which comprise certain groups of aromatic compounds, esters, narrow mixtures of base stocks, and/or amorphous polymers such as amorphous olefin copolymers. These compositions can provide substantial reductions in the coefficient of function and fuel economy improving benefits when admixed to lubricating oils without deleterious effects such as instability, undesirable high viscosities and deposits. In one aspect of the invention, pentaerythritol esters and optionally triol esters are added to lubricating oil compositions to provide reduced friction and improved fuel economy. In a second aspect of the invention, similar results are obtained by adding hydrocarbyl aromatics to a lubricating oil composition containing one or more of Groups II and III base stock. In a third aspect, the invention concerns a lubricating oil composition comprising an amorphous olefin copolymer and one or more of Groups II and III base stocks.Type: ApplicationFiled: December 16, 2002Publication date: September 4, 2003Inventors: Douglas Edward Deckman, Mark D. Winemiller, William L. Maxwell, William H. Buck, David J. Baillargeon
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Publication number: 20030166475Abstract: The present invention concerns friction reducers for use in lubricating oil compositions which comprise certain groups of aromatic compounds, esters, narrow mixtures of base stocks, and/or amorphous polymers such as amorphous olefin copolymers. These compositions can provide substantial reductions in the coefficient of friction and fuel economy improving benefits when admixed to lubricating oils without deleterious effects such as instability, undesirable high viscosities and deposits. In one aspect of the invention, pentaerythritol esters and optionally triol esters are added to lubricating oil compositions to provide reduced friction and improved fuel economy. In a second aspect of the invention, similar results are obtained by adding hydrocarbyl aromatics to a lubricating oil composition containing one or more of Groups II and III base stock. In a third aspect, the invention concerns a lubricating oil composition comprising an amorphous olefin copolymer and one or more of Groups II and III base stocks.Type: ApplicationFiled: January 30, 2003Publication date: September 4, 2003Inventors: Mark D. Winemiller, Douglas E. Deckman, William L. Maxwell, William H. Buck, David J. Baillargeon
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Publication number: 20030166476Abstract: The present invention concerns friction reducers for use in lubricating oil compositions which comprise certain groups of aromatic compounds, esters, narrow mixtures of base stocks, and/or amorphous polymers such as amorphous olefin copolymers. These compositions can provide substantial reductions in the coefficient of friction and fuel economy improving benefits when admixed to lubricating oils without deleterious effects such as instability, undesirable high viscosities and deposits. In one aspect of the invention, pentaerythritol esters and optionally triol esters are added to lubricating oil compositions to provide reduced friction and improved fuel economy. In a second aspect of the invention, similar results are obtained by adding hydrocarbyl aromatics to a lubricating oil composition containing one or more of Groups II and III base stock. In a third aspect, the invention concerns a lubricating oil composition comprising an amorphous olefin copolymer and one or more of Groups II and III base stocks.Type: ApplicationFiled: January 30, 2003Publication date: September 4, 2003Inventors: Mark D. Winemiller, Douglas E. Deckman, William L. Maxwell, William H. Buck, David J. Baillargeon
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Publication number: 20030153469Abstract: The present invention provides a power transmission lubricating composition containing a base oil, a dispersant, a lubricant additive produced by the reaction of a dihydrocarbyldithio-phosphoric acid and a hydrocarbyl acrylate, and optionally a viscosity index improver. Improved friction performances in automatic and continuously variable transmissions are achieved by utilizing the fluids of the present invention in ash-free lubricating oil compositions for transmissions and axles.Type: ApplicationFiled: January 28, 2002Publication date: August 14, 2003Inventor: Nubar Ozbalik
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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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Publication number: 20030148898Abstract: A dispersant that is a reaction product of a polyalkenyl-substituted mono- or dicarboxylic acid, anhydride or ester; and a polyamine, wherein the reaction product has from greater than about 1.3 to less than about 1.7 mono- or di-carboxylic acid producing moieties per polyalkenyl moiety, and the polyalkenyl moiety has a number average molecular weight of at least about 1800, and a molecular weight distribution (Mw/Mn) of from about 1.5 to about 2.0.Type: ApplicationFiled: December 6, 2001Publication date: August 7, 2003Inventors: Ian A. W. Bell, Jacob Emert, Raymond Fellows, Antonio Gutierrez, Robert Robson
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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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Publication number: 20030148897Abstract: A boron-containing dispersant composition containing one or more dispersants that are the reaction product of a polyalkenyl-substituted mono- or dicarboxylic acid, anhydride or ester; and a polyamine, in which at least one of the dispersants has a polyalkenyl moiety with a number average molecular weight of at least about 1800, and from greater than about 1.3 to about 1.7 mono- or di-carboxylic acid producing moieties per polyalkenyl moiety; and in which a ratio of wt. % of boron to wt. % of nitrogen (B/N) for the dispersant composition is from about 0.05 to about 0.24.Type: ApplicationFiled: December 6, 2001Publication date: August 7, 2003Inventors: Ian A. W. Bell, Jacob Emert, Raymond Fellows, Antonio Gutierrez, Robert Robson
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Publication number: 20030144157Abstract: An oil composition for heat treatment of a gear which comprises mineral oil having a kinematic viscosity of 5 to 40 mm2/second at 100° C. as a base oil and, based on a total amount of the composition, 0.01 to 5% by weight of (a) a phosphoric acid ester compound and, where necessary, 0.5 to 10% by weight of (b) one compound selected from alkenylsuccinimide compounds, alkylsuccinimide compounds and addition products of boron with alkenylsuccinimide compounds or alkylsuccinimide compounds and 0.5 to 10% by weight of (c) at least one compound selected from salicylates, phenates and sulfonates of alkaline earth metals.Type: ApplicationFiled: February 14, 2003Publication date: July 31, 2003Applicant: Idemitsu Kosan Co., Ltd.Inventor: Eiichi Nakamura
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Patent number: 6596672Abstract: A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0% of a calcium overbased acidic material, 0.1 to 2.0% of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled hindered phenol antioxidant and an antioxidant other than an alkylene-coupled hindered phenol antioxidant, is particularly useful for lubricating stationary gas engines.Type: GrantFiled: May 28, 2002Date of Patent: July 22, 2003Assignee: The Lubrizol CorporationInventors: Virginia A. Carrick, Ewa A. Bardasz, David E. Ripple
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Publication number: 20030134756Abstract: A low sulfate ash lubricating oil composition comprising an oil of lubricating viscosity, 0.1 to 3.0% of a calcium overbased acidic material, 0.1 to 2.0% of a magnesium overbased acidic material, and at least 0.5% of a combination of an alkylene-coupled hindered phenol antioxidant and an antioxidant other than an alkylene-coupled hindered phenol antioxidant, is particularly useful for lubricating stationary gas engines.Type: ApplicationFiled: May 28, 2002Publication date: July 17, 2003Inventors: Virginia A. Carrick, Ewa A. Bardasz, David E. Ripple
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Publication number: 20030134753Abstract: This invention relates to improved antioxidant antiwear/extreme pressure compositions consisting of (a) methylenebis(di-n-butyldithiocarbamate) and (b) a diphenylamine derivative of tolutriazole or benzotriazole wherein the (a):(b) mass precent ratio ranges from above about 4:1 to about 50:1 and lubricating compositions containing same.Type: ApplicationFiled: November 19, 2002Publication date: July 17, 2003Applicant: R.T. Vanderbilt Company, Inc.Inventors: Brian W. Stunkel, Thomas J. Karol, Steven G. Donnelly