Nitrogen Attached Indirectly To The Hetero Ring By Nonionic Bonding (e.g., Bis-succinimide Compounds, Etc.) Patents (Class 508/291)
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Patent number: 11643615Abstract: A lubricant composition according to the present invention contains a fatty acid metal salt, a metal dithiocarbamate, and an additive having an effect of increasing an acid value of the lubricant composition, whereby fretting resistance performances are further improved.Type: GrantFiled: December 21, 2018Date of Patent: May 9, 2023Assignee: NSK LTD.Inventors: Taisuke Maruyama, Yujiro Toda, Eri Watabe, Suguru Sugawara, Masayuki Maeda
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Patent number: 11421174Abstract: The disclosed technology relates to a dispersant composition comprising the reaction product of a polyolefin acylating agent and a polyamine having a sterically hindered head group. In addition, the technology relates to lubricating compositions containing the dispersant composition and an oil of lubricating viscosity, as well as methods of employing the lubricating composition in an engine and engine oils. Lubricating oils containing the dispersants of the disclosed technology simultaneously achieves seal compatibility, wear, deposit, varnish and corrosion control while also maintaining fuel economy performance over a broad temperature range.Type: GrantFiled: November 29, 2018Date of Patent: August 23, 2022Assignee: The Lubrizol CorporationInventors: Dixit Parmar, Joanne L. Jones, Daniel J. Saccomando, Nicolas Proust, Patrick E. Mosier
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Patent number: 11332687Abstract: The present invention provides a compound represented by formula (1) (in formula (1), R1 and R2 each independently represent a group represented by formula (2) or NHR0 (where R1 and R2 are not simultaneously NHR0), R0 represents any one of hydrogen, an alkyl group having 1-20 carbon atoms, an alkenyl group having 2-30 carbon atoms, an aryl group having 6-30 carbon atoms, an alkylaryl group having 7-30 carbon atoms, and an arylalkyl group having 7-30 carbon atoms, each R3 independently represents hydrogen or a hydrocarbon group having 1-30 carbon atoms, l represents an integer of 0-4, m represents an integer of 1-4 (where m is an integer of 2-4 in the case where R1 and R2 are a group represented by formula (2)), and each n independently represents an integer of 0-4, and, in formula (2), R4 represents a hydrocarbon group having 6-24 carbon atoms, and X1 and X2 each independently represent an oxygen atom or a sulfur atom).Type: GrantFiled: April 12, 2018Date of Patent: May 17, 2022Assignee: Idemitsu Kosan Co..Ltd.Inventors: Kazushige Matsubara, Hiroaki Koshima, Toshiaki Iwai, Hideki Kamano
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Patent number: 10937963Abstract: An organic photovoltaic device comprising a quaternized tetrazine-based donor-acceptor (D-A) copolymer is disclosed.Type: GrantFiled: August 12, 2019Date of Patent: March 2, 2021Assignee: International Business Machines CorporationInventors: Brandon M. Kobilka, Jason T. Wertz
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Patent number: 10407642Abstract: The present invention relates to a lubricating oil composition prepared by blending (A) a tertiary amine having a specific structure, (B) a metal-based detergent having a total base number according to a perchloric acid method of 50 mgKOH/g or less, (C) a metal-based detergent having a total base number according to a perchloric acid method of 150 mgKOH/g or more, (D) at least one selected from an acidic phosphate and an acidic phosphite, and (E) a lubricating base oil, which satisfies a requirement (X): the mass ratio of the metal fraction derived from the component (B) to the metal fraction derived from the component (C) (B/C) is 0.60 or less.Type: GrantFiled: March 29, 2016Date of Patent: September 10, 2019Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masato Yokomizo, Keiichi Narita
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Patent number: 10308889Abstract: Fuel additive compositions that include synergistic mixtures of one or more neutral lubricity additives and one or more monoacidic lubricity additives to provide wear and/or friction reduction in fuels.Type: GrantFiled: August 3, 2018Date of Patent: June 4, 2019Assignees: Afton Chemical Corporation, Shell Oil CompanyInventors: William Colucci, Joseph Calderone, Joseph Russo
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Patent number: 10174272Abstract: Lubricating oil compositions and methods of their use are provided herein. A lubricating oil composition as described herein includes a major amount of an oil of lubricating viscosity, an amine-functionalized olefin copolymer dispersant viscosity index improver in an amount of from about 1.5 wt. % to 2.0 wt. % based on the weight of the lubricating oil composition, and a dispersant. The amine-functionalized olefin copolymer dispersant viscosity index improver includes a reaction product of an acylated olefin copolymer and a polyamine.Type: GrantFiled: December 11, 2017Date of Patent: January 8, 2019Assignee: Afton Chemical CorporationInventor: Jason Lagona
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Patent number: 9631160Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers that contain one or more amide functional groups, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.Type: GrantFiled: May 22, 2012Date of Patent: April 25, 2017Assignee: The Lubrizol CorporationInventors: James D. Burrington, Patrick E. Mosier, David C. Arters, Stuart L. Bartley
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Patent number: 9528067Abstract: The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers that contain one or more amide functional groups, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.Type: GrantFiled: November 17, 2010Date of Patent: December 27, 2016Assignee: The Lubrizol CorporationInventors: John J. Mullay, James D. Burrington, Ewan E. Delbridge
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Patent number: 9334462Abstract: A lubricating composition includes one or more base oils, at least one dimercaptothiadiazole derivative, at least one ethylene and alpha-olefin copolymer and at least one amine thiophosphate. The composition can be used for lubricating transmissions such as gearboxes and axles, preferably the manual gearboxes of motor vehicles and enable a reduction in the fuel consumption of vehicles, in particular of motor vehicles, due to the combination of the ethylene and alpha-olefin copolymer, dimercaptothiadiazole derivative and amine thiophosphate which decreases the coefficient of friction of the lubricating composition.Type: GrantFiled: December 14, 2012Date of Patent: May 10, 2016Assignee: TOTAL MARKETING SERVICESInventors: Alain Bouffet, Alder Da Costa D'ambros, Richard Vernay, Gérard Thomesse
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Patent number: 9157041Abstract: The present invention relates to diesel fuel compositions comprising a performance enhancing additive, wherein the additive is the product of a Mannich reaction between: (a) an aldehyde; (b) a polyamine; and (c) an optionally substituted phenol; wherein the or each substituent of component (c) has an average molecular weight of less than 400.Type: GrantFiled: September 25, 2008Date of Patent: October 13, 2015Assignee: Innospec LimitedInventor: Jacqueline Reid
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Patent number: 9115615Abstract: A lubricating composition containing an oil of lubricating viscosity, a high molecular weight polyolefin that is at least substantially free of ethylene-derived monomer units, and an overbased metal containing detergent, is capable of reducing intake valve deposits in a direct injection engine.Type: GrantFiled: October 5, 2011Date of Patent: August 25, 2015Assignee: The Lubrizol CorporationInventors: Stephen J. Cook, Alexandra Mayhew, Mark C. Davies, Jolanta Z. Adamczewska
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Publication number: 20150144429Abstract: The present invention relates to a marine lubricating oil composite additive. Based on the total weight of the composite additive, said marine lubricating oil composite additive comprises: 25-45% sulfonate detergent with superhigh base number, 40-60% phenolate detergent with low base number, 0-8% dispersing agent, 0-4% antiwear agent, and 10-20% Group I base oil with high viscosity index which is selected from the group consisting of 400SN, 500SN and 600SN. The composite additive according to the present invention can satisfy the requirement of BOB system about the viscosity and base number, and can be blended with many system oils under a number of domestic and foreign brands so as to provide cylinder lubricating oils with different base numbers.Type: ApplicationFiled: November 21, 2014Publication date: May 28, 2015Inventors: Jie Zhang, Gongde Liu, Yuekui Zhai
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Publication number: 20150144430Abstract: The present invention relates to a marine cylinder oil composite additive. Based on the total weight of the composite additive, said marine cylinder oil composite additive comprises: 15-25% sulfonate detergent with superhigh base number, 35-45% phenolate detergent with superhigh base number, 20-30% naphthenate detergent with superhigh base number, 0-8% dispersing agent, 0-4% antiwear agent, and 10-20% Group I base oil with high viscosity index which is selected from the group consisting of 400SN, 500SN and 650SN. The benefit of the present invention lies in the fact that the composite additive can satisfy the requirement of BOB system about the viscosity and base number, and can be blended with many system oils under a number of domestic and foreign brands so as to provide cylinder lubricating oils with different base numbers.Type: ApplicationFiled: November 21, 2014Publication date: May 28, 2015Inventors: Yuekui Zhai, Jie Zhang, Gongde Liu, Yuli Ma
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Patent number: 9029304Abstract: An oil-soluble lubricating oil additive composition comprising (a) at least 3.5 wt-% of at least one friction modifier selected from the group consisting of fatty acids, fatty acid amides, fatty acid esters, and alkane diols which have a melting point of greater than 30° C.; (b) at least 10 wt-% actives dispersant; and (c) a sufficient amount of surfactant to make said additive composition haze-, sediment-, and skin-free, provided that said additive composition contains at least 150 mm surfactant per kg of said lubricating oil additive composition.Type: GrantFiled: September 30, 2008Date of Patent: May 12, 2015Assignee: Chevron Oronite Company LLCInventor: Deane S. Walker
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Patent number: 9006156Abstract: A composition is provided for use as a friction modifier for an automatic transmission, which comprises a condensation product of a hydroxypolycarbox-ylic acid, such as 2,3-di-hydroxybutanedioic acid or 2-hydroxybutanedioic acid, with an N,N-di(hydrocarbyl)alkylenediamine, where each hydrocarbyl group contains 1 to 22 carbon atoms, provided that the total number of carbon atoms in the two hydrocarbyl groups is at least about 9, and the alkylene group contains 2 to 4 carbon atoms.Type: GrantFiled: May 10, 2010Date of Patent: April 14, 2015Assignee: The Lubrizol CorporationInventors: Daniel J. Saccomando, Richard J. Vickerman
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Publication number: 20150094244Abstract: A lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity, (b) an ashless dispersant, (c) at least one metal-containing detergent, (d) an antioxidant, and (e) an anti-wear agent, wherein the lubricating oil composition is free of any zinc dialkyl dithiophosphate compound and is substantially free of any phosphorus content is disclosed.Type: ApplicationFiled: October 8, 2014Publication date: April 2, 2015Inventors: Elaine S. Yamaguchi, Kam-Sik Ng
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Patent number: 8993496Abstract: 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: GrantFiled: March 31, 2010Date of Patent: March 31, 2015Assignee: Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
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Patent number: 8987178Abstract: The invention provides a lubricating composition containing an oil of lubricating viscosity and a calcium-containing detergent with a soap content of 0.06 wt % to 1.6 wt % of the lubricating composition. The lubricating composition is suitable for lubricating an internal combustion engine.Type: GrantFiled: December 17, 2008Date of Patent: March 24, 2015Assignee: The Lubrizol CorporationInventors: Mark C. Davies, Michael R. Sutton
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Publication number: 20150045267Abstract: The invention provides a composition containing an oil of lubricating viscosity and an N-substituted malimide. The invention further relates to the use of the lubricating composition in an internal combustion engine.Type: ApplicationFiled: October 27, 2014Publication date: February 12, 2015Inventors: Seth L. Crawley, Jody A. Kocsis, Suzanne M. Patterson
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Patent number: 8940671Abstract: The invention relates to a lubricating composition containing (a) an N-substituted malimide, and (b) an oil of lubricating viscosity. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.Type: GrantFiled: May 10, 2010Date of Patent: January 27, 2015Assignee: The Lubrizol CorporationInventor: Shubhamita Basu
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Publication number: 20150024984Abstract: An engine oil comprising a major amount of a base oil and a minor amount of an additive package, wherein the additive package comprises at least one friction modifier represented by the formula: wherein R is selected from a hydrocarbyl group having 12 to 28 carbon atoms, a heteroatom containing hydrocarbyl having 12 to 32 carbon atoms, or a group represented by the formula: wherein R1 and R2 are independently selected from hydrocarbyl carbonyl moieties having 12 to 28 carbon atoms, or R1 and R2 form a hydrocarbon dicarbonyl containing ring with 12 to 32 carbon atoms, and R3 and R4 are independently selected from alkyl groups having 1 to 18 carbon atoms. Methods of using the engine oil to improve thin film and/or boundary layer friction in an engine are also provided.Type: ApplicationFiled: July 18, 2013Publication date: January 22, 2015Inventor: John T. Loper
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Publication number: 20150024985Abstract: A lubricating oil comprising a major amount of a base oil and a minor amount of an additive package, and the additive package comprises at least one friction modifier selected from compounds of the formulae II, III and IV, and carboxylate salts thereof: wherein R is a linear or branched, saturated, unsaturated, or partially saturated hydrocarbyl having about 8 to about 28 carbon atoms, n is 0 or 1; and the carboxylate salts have a cation that is an alkali metal, alkaline earth metal, group IIB metal, or ammonium cation; and a dispersant and/or a detergent wherein said lubricating oil comprises at total of at least 5 wt. % of the dispersant and/or the detergent. Methods of using the engine oil to improve thin film and/or boundary layer friction in an engine are also provided.Type: ApplicationFiled: June 18, 2014Publication date: January 22, 2015Inventor: John T. Loper
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Patent number: 8933247Abstract: The present invention provides a succinimide compound represented by the following formula (1-1) or (1-2), and a lubricating oil additive and a lubricating oil composition which contain the succinimide compound. wherein R represents an alkyl group or an alkenyl group having a number-average molecular weight of 500 or greater and less than 5000. wherein R represents an alkyl group or an alkenyl group having a number-average molecular weight of 500 or greater and less than 5000.Type: GrantFiled: March 29, 2011Date of Patent: January 13, 2015Assignee: JX Nippon Oil & Energy CorporationInventors: Kazuo Tagawa, Miho Endou
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Patent number: 8933001Abstract: 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 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: January 13, 2015Assignee: Chevron Oronite Company LLCInventors: Kenneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
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Patent number: 8927469Abstract: An engine lubricant composition, a method for maintaining the soot or sludge handling capability of an engine lubricant while not adversely affecting elastomeric seal material in the engine and a method of operating an engine. The engine lubricant includes a base oil and a dispersant. The dispersant is a reaction product of A) a hydrocarbyl-dicarboxylic acid or anhydride, B) a polyamine, C) a dicarboxyl-containing fused aromatic compound, and D) a non-aromatic dicarboxylic acid or anhydride.Type: GrantFiled: July 16, 2012Date of Patent: January 6, 2015Assignee: Afton Chemical CorporationInventors: Naresh Mathur, Jason A. Lagona
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Patent number: 8927471Abstract: An engine oil comprising a major amount of a base oil and a minor amount of an additive package, wherein the additive package comprises at least one friction modifier represented by the formula: wherein R is selected from a hydrocarbyl group having 12 to 28 carbon atoms, a heteroatom containing hydrocarbyl having 12 to 32 carbon atoms, or a group represented by the formula: wherein R1 and R2 are independently selected from hydrocarbyl carbonyl moieties having 12 to 28 carbon atoms, or R1 and R2 form a hydrocarbon dicarbonyl containing ring with 12 to 32 carbon atoms, and R3 and R4 are independently selected from alkyl groups having 1 to 18 carbon atoms. Methods of using the engine oil to improve thin film and/or boundary layer friction in an engine are also provided.Type: GrantFiled: July 18, 2013Date of Patent: January 6, 2015Assignee: Afton Chemical CorporationInventor: John T. Loper
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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: 8901052Abstract: A transmission oil composition for an automobile characterized in that it contains a base oil selected from the group consisting of a mineral oil, a synthetic oil and mixtures thereof; and a phosphate compound selected from the group consisting of (A) a zinc dithiophosphate having a hydrocarbon group, (B) a triaryl phosphate (C) a triaryl thiophosphate, and mixtures thereof at 0.1 to 15.0% by mass with respect to the total composition; wherein the composition has a volume resistivity of 1×107 ohm·m or more at 80° C.Type: GrantFiled: December 29, 2010Date of Patent: December 2, 2014Assignees: Nissan Motor Co., Ltd., Nippon Oil CorporationInventors: Takumaru Sagawa, Takafumi Ueno, Hisayuki Wada, Tooru Aoki
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Patent number: 8877694Abstract: The present invention relates to a lubricating composition, particularly marine diesel engine lubricating compositions, comprising: (a) an oil of lubricating viscosity; (b) an asphaltene dispersant comprising an amide group, which may also contain a succinimide group, and which may optionally be used in combination with additional asphaltene dispersants that contain a cyclic headgroup that contains a nitrogen atoms where the additional asphaltene dispersants may also include a succinimide group; and (c) a detergent derived from an alkyl phenol. The invention further provides methods of using such compositions in the operation of engine, particularly marine diesel engines.Type: GrantFiled: February 8, 2012Date of Patent: November 4, 2014Assignee: The Lubrizol CorporationInventors: Joanne L. Jones, William R. S. Barton, Daniel J. Saccomando, Stephen J. Cook, Shaun P. Carney, Alexandra Mayhew
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Patent number: 8859473Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting (A) reacting a copolymer of an (i) an unsaturated acidic reagent; and (ii) a mono-olefin, with at least one linking hydrocarbyl di-primary amine, thereby producing a hybrid succinic anhydride copolymer having from about 10% to about 90% unreacted anhydride groups; and subsequently (B) reacting the hybrid succinic anhydride copolymer with a second amine compound, thereby producing the succinimide; and (C) reacting the succinimide with at least one post-treating agent selected from a cyclic carbonate, a linear mono-carbonate, a linear poly-carbonate, an aromatic polycarboxylic acid, an aromatic polycarboxylic anhydride, an aromatic polycarboxylic acid ester, or mixtures thereof.Type: GrantFiled: December 22, 2008Date of Patent: October 14, 2014Assignee: Chevron Oronite Company LLCInventors: James J. Harrison, Mitra Hosseini
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Patent number: 8846589Abstract: Lubricating oil compositions for transmissions comprises (A) a lubricating base oil with a kinematic viscosity at 100° C. adjusted to 1.5 to 6 mm2/s, composed of (A1) a lubricating base oil with a kinematic viscosity at 100° C. of 1.5 mm2/s or higher and lower than 7 mm2/s or (A1) the lubricating oil and (A2) a lubricating base oil with a kinematic viscosity at 100° C. of 7 to 50 mm2/s, blended with (B) a poly(meth)acrylate-based additive, so that the composition has a kinematic viscosity at 100° C. of 3 to 8 mm2/s and a viscosity index of 95 to 200, (A) and (B) fulfill a specific requirement. The compositions achieve long fatigue life though having low viscosity.Type: GrantFiled: April 19, 2007Date of Patent: September 30, 2014Assignee: Nippon Oil CorporationInventors: Toru Matsuoka, Masaaki Itou
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Patent number: 8841243Abstract: A natural gas engine lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity, (b) one or more phosphorus-containing anti-wear additives, (c) one or more ashless dispersants, (d) one or more alkaline earth metal salts of an alkyl-substituted hydroxyaromatic carboxylic acid, and (e) one or more antioxidants, wherein the natural gas engine lubricating oil composition contains no more than about 0.03 weight percent of phosphorus, based on the total weight of the natural gas engine lubricating oil composition, and further wherein the natural gas engine lubricating oil composition is substantially free of any alkali metal-containing detergents.Type: GrantFiled: March 31, 2010Date of Patent: September 23, 2014Assignee: Chevron Oronite Company LLCInventors: Melanie F. Tobias, Jon F. Von Staden
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Patent number: 8822392Abstract: A lubricating oil comprising a major amount of a base oil and a minor amount of an additive package, and the additive package comprises at least one friction modifier selected from compounds of the formulae II, III and IV, and carboxylate salts thereof: wherein R is a linear or branched, saturated, unsaturated, or partially saturated hydrocarbyl having about 8 to about 28 carbon atoms, n is 0 or 1; and the carboxylate salts have a cation that is an alkali metal, alkaline earth metal, group IIB metal, or ammonium cation. Methods of using the engine oil to improve thin film and/or boundary layer friction in an engine are also provided.Type: GrantFiled: July 18, 2013Date of Patent: September 2, 2014Assignee: Afton Chemical CorporationInventor: John T. Loper
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Patent number: 8796192Abstract: A natural gas engine lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity, (b) one or more phosphorus-containing anti-wear additives, (c) one or more oil soluble overbased alkaline earth metal-containing detergents; and (d) one or more oil soluble neutral alkali metal-containing detergents, wherein the natural gas engine lubricating oil composition contains no more than about 0.03 weight percent of phosphorus, based on the total weight of the natural gas engine lubricating oil composition.Type: GrantFiled: October 29, 2010Date of Patent: August 5, 2014Assignee: Chevron Oronite Company LLCInventors: Melanie F. Tobias, Jon F. Von Staden
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Patent number: 8748359Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting (A) reacting a copolymer of an (i) an unsaturated acidic reagent; and (ii) a mono-olefin, with at least one linking hydrocarbyl di-primary amine, thereby producing a hybrid succinic anhydride copolymer having from about 10% to about 90% unreacted anhydride groups; and subsequently (B) reacting the hybrid succinic anhydride copolymer with a second amine compound, thereby producing the succinimide; and (C) reacting the succinimide with at least one post-treating agent selected from a cyclic carbonate, a linear mono-carbonate, a linear poly-carbonate, an aromatic polycarboxylic acid, an aromatic polycarboxylic anhydride, an aromatic polycarboxylic acid ester, or mixtures thereof.Type: GrantFiled: November 27, 2012Date of Patent: June 10, 2014Assignee: Chevron Oronite Company LLCInventors: James J. Harrison, Mitra Hosseini
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Patent number: 8728997Abstract: The present invention provides a lubricating oil composition which is less in evaporation loss even having a low viscosity and excellent in lubricating properties such as low-temperature viscosity characteristics and anti-seizure properties and in oxidation stability, suitable for use in engines, automatic transmissions, manual transmissions, final reduction gear units, and continuously variable transmissions. The lubricating oil composition comprises (A) a lubricating base oil and (B) a poly(meth)acrylate additive in such an amount that the kinematic viscosity at 100° C. of the composition (Vc) is from 3 to 15 mm2/s, the viscosity index of the composition is from 95 to 200, and the ratio of the kinematic viscosity at 100° C. of (A) the lubricating base oil (Vb) to (Vc) (=Vb/Vc) is 0.60 or greater, further, (C) a metallic detergent, (D) an ashless dispersant and (E) zinc dithiophosphate, each in a specific amount.Type: GrantFiled: April 19, 2007Date of Patent: May 20, 2014Assignee: Nippon Oil CorporationInventors: Osamu Kurosawa, Masaaki Itou, Masato Takahashi
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Patent number: 8709988Abstract: Lubricating oil compositions having a sulfated ash content of no more than 1.0 mass %, which contain a major amount of oil of lubricating viscosity, a minor amount of calcium salicylate detergent, an amount of a magnesium-based detergent providing at least 200 ppm of magnesium, and a basic, low molecular weight, nitrogen-containing dispersant, which compositions provide improved top ring wear protection in internal combustion engines.Type: GrantFiled: November 29, 2005Date of Patent: April 29, 2014Assignee: Infineum International LimitedInventors: Stephen Arrowsmith, Matthew D. Irving
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Patent number: 8709986Abstract: A lubricating composition comprising an oil of lubricating viscosity, at least 25 parts per million by weight of titanium in the form of an oil-soluble titanium-containing material, and at least 70 parts per million boron in the form of a soluble boron compound such as a borate ester provides beneficial effects on properties such as deposit control, oxidation, and filterability in engine oils and lubrication of engines.Type: GrantFiled: September 23, 2008Date of Patent: April 29, 2014Assignee: The Lubrizol CorporationInventors: Thomas J. Derevjanik, Philip R. Scinto, Mary Galic Raguz, David Wilson, Virginia A. Carrick
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Publication number: 20140107003Abstract: The invention provides a lubricating composition containing a lubricating composition comprising an oil of lubricating viscosity and a quaternised polyester salt. The invention further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The invention further relates to the use of the quaternised polyester salt as a dispersant.Type: ApplicationFiled: June 18, 2012Publication date: April 17, 2014Inventors: Matthew D. Gieselman, Joanne L. Jones, David J. Moreton, Dean Thetford, Hannah Greenfield
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Patent number: 8697617Abstract: Reaction products of maleic and/or succinic acids or anhydrides and primary aliphatic amines are disclosed as effective in reducing the static friction in power transmission fluids.Type: GrantFiled: December 4, 2008Date of Patent: April 15, 2014Assignee: Infineum International LimitedInventors: Raymond F. Watts, Keith R. Gorda
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Publication number: 20140011721Abstract: 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: ApplicationFiled: September 6, 2013Publication date: January 9, 2014Applicant: Afton Chemical CorporationInventors: Roger M. SHEETS, Nubar Ozbalik
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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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Publication number: 20130303415Abstract: The present invention relates to a lubricating composition, particularly marine diesel engine lubricating compositions, comprising: (a) an oil of lubricating viscosity; (b) an asphaltene dispersant comprising an amide group, which may also contain a succinimide group, and which may optionally be used in combination with additional asphaltene dispersants that contain a cyclic headgroup that contains a nitrogen atoms where the additional asphaltene dispersants may also include a succinimide group; and (c) a detergent derived from an alkyl phenol. The invention further provides methods of using such compositions in the operation of engine, particularly marine diesel engines.Type: ApplicationFiled: February 8, 2012Publication date: November 14, 2013Applicant: THE LUBRIZOL CORPORATIONInventors: Joanne L. Jones, William R.S. Barton, Daniel J. Saccomando, Stephen J. Cook, Shaun P. Carney, Alexandra Mayhew
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Patent number: 8569215Abstract: Disclosed is a transmission oil composition for use in a push belt continuously variable transmission (CVT). The push belt CVT oil composition includes a hydrogenated base oil or a synthetic base oil admixed with a viscosity control agent, a dispersing agent, a friction control agent and other additives at specific ratios and provides improved friction characteristics, durability, thermal stability, oxidation stability and transmission performance. It can be used at various temperature ranges and can provide improved transmission efficiency (fuel efficiency).Type: GrantFiled: November 18, 2011Date of Patent: October 29, 2013Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Sang Yeob Cha
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Patent number: 8497232Abstract: A bis-type alkenyl-substituted succinimide which is prepared by reaction of succinic anhydride substituted with 2-alkenyl group having a branch structure in ?-position with alkylenepolyamine and its derivatives derived from the bis-type alkenyl-substituted succinimide by post-treatment are of value as friction modifiers, particularly for incorporation into lubricating oils for automatic transmissions.Type: GrantFiled: July 29, 2010Date of Patent: July 30, 2013Assignee: Chevron Japan LimitedInventors: Kedar Shanker Shrestha, Michio Shiga, Masami Fuchi, Takahiro Nakagawa
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Patent number: 8410032Abstract: A lubricant composition, a multi-vehicle transmission fluid, and a method for making a transmission fluid. The lubricant composition includes a) a base oil; b) 2,5-dimercapto-1,3,4-thiadiazole (DMTD), a derivative of DMTD, or mixtures thereof; and c) a friction modifier. The friction modifier is made by reacting an olefin containing at least 40% by weight C10-C36 vinylidene olefin with maleic acid, anhydride, or ester to provide a first reaction product, and aminating the first reaction product with an effective amount of a compound containing basic nitrogen to provide the friction modifier. The C10-C36 vinylidene olefin is represented by the following formula: wherein Rc and Rd are independently a (C3-C15) alkyl, cycloalkyl or cycloalkenyl.Type: GrantFiled: July 9, 2012Date of Patent: April 2, 2013Assignee: Afton Chemical CorporationInventors: Joseph B. Carroll, Christopher S. Cleveland
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Publication number: 20130040865Abstract: The present invention provides a succinimide compound represented by the following formula (1-1) or (1-2), and a lubricating oil additive and a lubricating oil composition which contain the succinimide compound. wherein R represents an alkyl group or an alkenyl group having a number-average molecular weight of 500 or greater and less than 5000. wherein R represents an alkyl group or an alkenyl group having a number-average molecular weight of 500 or greater and less than 5000.Type: ApplicationFiled: March 29, 2011Publication date: February 14, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Kazuo Tagawa, Miho Endou
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Patent number: 8361940Abstract: A low sulfated ash, tow sulfur, low phosphorus, low zinc lubricating, oil composition preferably employable for internal combustion engines using a low sulfur hydrocarbon fuel comprises a base oil having a saturated component of 85 wt. % or more, a viscosity index of 110 or more, and a sulfur content of 0.01 wt. % or less; an alkaline earth metal-containing detergent; a nitrogen-containing ashless dispersant of a weight average molecular weight of 4,500 or more; a phenolic or amine oxidation inhibitor; and a basic nitrogen-containing compound-oxymolybdenum complex.Type: GrantFiled: September 12, 2007Date of Patent: January 29, 2013Assignee: Chevron Japan Ltd.Inventors: Morikuni Nakazato, Yoshitaka Takeuchi, Takahiro Muramatsu
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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