The Nitrogen Is Bonded Directly To The Carbon Of A -c(=x)x- Group, Wherein The Xs May Be The Same Or Diverse Chalcogens (e.g., Dithiocarbamates, Etc.) Patents (Class 508/363)
  • Patent number: 10155915
    Abstract: A lubricating oil composition that hardly generates precipitation attributable to a molybdenum compound under the low temperature environment and is excellent in a friction-reducing effect under the low temperature environment is provided. The lubricating oil composition is one including (A) a lubricating base oil, (B) a molybdenum-based compound, (C) a metal-based detergent, and (D) an ester compound having one or more hydroxyl groups in a molecule thereof, wherein the metal-based detergent (C) includes (C1) a calcium detergent and (C2) a magnesium detergent, and a content of the ester compound (D) having one or more hydroxyl groups in a molecule thereof is 0.03 to 1.20 mass % on a basis of the total amount of the lubricating oil composition.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: December 18, 2018
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Kazushi Tamura
  • Patent number: 10087392
    Abstract: The present invention relates to a lubricant composition including a molybdenum dithiocarbamate (A) represented by the general formula (1) and a copolymer (B) that includes, as essential constitutional units, a unit (a) represented by the general formula (2) and a unit (b) represented by the general formula (3), has a weight-average molecular weight of from 5,000 to 150,000, and has a composition ratio of the unit (a) to the unit (b), i.e., (a)/(b), of from 50/50 to 90/10 by mole, and a lubricant oil composition including same.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: October 2, 2018
    Assignee: ADEKA CORPORATION
    Inventors: Yukiya Moriizumi, Kenji Yamamoto
  • Patent number: 10030207
    Abstract: A sliding machine includes: a pair of sliding members having sliding surfaces that oppose each other and are able to move relative to each other; and a lubricating oil which is able to be interposed between the opposed sliding surfaces, in which at least one of the sliding surfaces is covered with a chromium (Cr)-containing amorphous carbon film (chromium-coating DLC), and the lubricating oil contains an oil-soluble molybdenum compound having a chemical structure formed from a trinuclear material of molybdenum (Mo). Specifically, the chromium-coating DLC contains, when the entirety of the film is assumed to be 100 at. %, 1% to 49% of Cr, 0% to 30% of hydrogen (H), carbon (C) as a remainder, and impurities. The lubricating oil contains 5 ppm to 800 ppm of the oil-soluble molybdenum compound in terms of Mo mass ratio with respect to the entirety of the lubricating oil.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: July 24, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Hiroyuki Mori, Mamoru Tohyama, Masaru Okuyama, Keiji Hayashi, Naoya Ikeda
  • Patent number: 9790447
    Abstract: [Technical Problem] An object is to provide a sliding system which can drastically reduce the friction coefficient on a sliding portion by means of a novel combination of a chromium nitride film and a lubricant oil. [Solution to Problem] The sliding system according to the present invention includes: a pair of sliding members having sliding surfaces that can relatively move while facing each other; and a lubricant oil that can be interposed between the sliding surfaces facing each other. At least one of the sliding surfaces is formed as a coating surface of a chromium nitride film, and the lubricant oil contains an oil-soluble molybdenum compound that has a chemical structure of a trinuclear of Mo.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: October 17, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Mori, Mamoru Tohyama, Masaru Okuyama, Keiji Hayashi, Naoya Ikeda
  • Patent number: 9644166
    Abstract: A nanolubricant composition is described where the lubricant composition includes a flowable oil or grease with nanoparticles dispersed in the flowable oil or grease. The nanoparticles are configured to polish a surface of a structure slowly over a period of time. The nanoparticles a hardness of at least about 7 Mohs and a diameter that is less than one half the arithmetic average roughness of the surface or a length that is less than one half of the arithmetic average roughness of the surface.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: May 9, 2017
    Assignee: Howard University
    Inventor: Mohsen Mosleh
  • Patent number: 9567546
    Abstract: The present invention provides a lubricating oil composition having fuel saving properties and providing gears and bearings with satisfactory durability, which is thus suitably used particularly for a gear system of an automobile. The lubricating oil composition a lubricating base oil comprising a mix base oil of (A) a mineral base oil having a 40° C. kinematic viscosity of 10 mm2/s or higher and 100 mm2/s or lower and (E) a mineral base oil having a 40° C. kinematic viscosity of 200 mm2/s or higher and 600 mm2/s or lower and a sulfur content of 0.3 to 0.9 percent by mass, the content of the base oil belonging to Component (B) is 15 percent by mass or more, and (C) and an organic molybdenum compound in an amount of 100 to 1000 ppm by mass as molybdenum, the lubricating oil composition having a 40° C. kinematic viscosity of 90 mm2/s or lower.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: February 14, 2017
    Assignee: JX Nippon Oil & Energy Corporation
    Inventor: Hitoshi Komatsubara
  • Patent number: 9564508
    Abstract: A method of making a semiconductor structure includes forming a trench through a shallow trench isolation (STI) structure and into a substrate, and forming a liner including an electrical insulator material on sidewalls of the trench. The method also includes forming a core including a high thermal conductivity material in the trench and on the liner, and forming a cap in the trench and on the core.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: February 7, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Mattias E. Dahlstrom, Dinh Dang, Qizhi Liu, Ramana M. Malladi
  • Patent number: 9536836
    Abstract: An MIS contact structure comprises a layer of semiconductor material, a layer of insulating material having a contact opening formed therein, a layer of contact insulating material having substantially vertically oriented portions and a substantially horizontally oriented portion, the vertically oriented portions of the layer of contact insulating material contacting a portion, but not all, of the sidewalls of the contact opening and the horizontally oriented portion of the layer of contact insulating material contacting the semiconductor layer. A conductive material is positioned on the layer of contact insulating material within the contact opening, the conductive material layer having vertically oriented portions and a horizontally oriented portion and a conductive contact positioned in the contact opening that contacts the uppermost surfaces of the conductive material layer and the layer of contact insulating material.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: January 3, 2017
    Assignees: GLOBALFOUNDRIES Inc., International Business Machines Corporation
    Inventors: Ruilong Xie, Xiuyu Cai, Kangguo Cheng, Ali Khakifirooz
  • Patent number: 9528073
    Abstract: The invention provides a lubricant composition capable of favorably preventing the members from causing hydrogen embrittlement-induced flaking when the members are operated under the conditions where the oil film is thin (namely, the metal surfaces considerably come in contact with each other). The lubricant composition used for lubricating the steel mechanical members operated by a rolling motion or rolling-sliding motion is characterized by containing a base oil and additives, the additives including an organic sulfonate rust inhibitor and a load carrying additive.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: December 27, 2016
    Assignee: KYODO YUSHI CO., LTD.
    Inventors: Toshiaki Endo, Junichi Imai, Yutaka Imai
  • Patent number: 9228152
    Abstract: An automotive engine oil and/or fuel comprising a base stock and an organic polymeric friction reducing additive is claimed. A method of reducing friction in an automotive engine oil and/or fuel by the addition of the organic polymeric friction reducing additive to the base stock is also claimed.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: January 5, 2016
    Assignee: CRODA INTERNATIONAL PLC
    Inventors: Lee Thompson, Steven James Randles, Stephen Boyde, John Gamwell, Nicola Readman
  • Patent number: 9012383
    Abstract: A novel molybdenum dithiocarbamate composition is produced by preparing a di-tridecylamine (DTDA) intermediate from a butylene feedstock comprising greater than 50% 2-butylene, and preparing a molybdenum dithiocarbamate composition from the DTDA intermediate.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: April 21, 2015
    Assignee: Vanderbilt Chemicals, LLC
    Inventors: Steven G. Donnelly, Gaston A. Aguilar, Kevin J. Chase, William T. Wallack
  • Patent number: 8980806
    Abstract: The invention is directed to oil soluble additive compositions, lubricating oil compositions, and additive concentrates comprising the salt of (1) a molybdenum oxide, sulfide, or oxysulfide; (2) an amide reaction product of a carboxylic acid component and a polyamine component wherein the charge mole ratio (CMR) of the carboxylic acid component to the polyamine component is about 2:1 to 1:1; and (3) a post-treating agent.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: March 17, 2015
    Assignee: Chevron Oronite Company LLC
    Inventors: Gaurav Bhalla, Man Hon Tsang
  • Patent number: 8901049
    Abstract: The purpose of the present invention is to provide: a sliding member having a lubricating film formed on the sliding surface thereof, and capable of exhibiting friction-reducing performance; and a friction reduction method for the same. To that end, the present invention entails coating the sliding surface with a titanium nitride-based material (for example, titanium carbon nitride, titanium nitride, or titanium aluminum nitride), adding a molybdenum dithiocarbamate with molybdenum in the amount of 600-1000 ppm to diesel engine oil, setting the arithmetic mean roughness of the sliding member to 2-10 nm, and upon converting the Sommerfeld number viscosity to Pa·s, the speed to s?1, and the load to mean Hertzian stress (Pa), then the lubrication conditions for use are within the range of 2.12365×10?19 to 5.94509×10?19.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: December 2, 2014
    Assignees: UD Trucks Corporation, Adeka Corporation
    Inventors: Keisuke Yari, Sachiyo Ono, Masaru Iijima, Noriyoshi Tanaka, Kenji Yamamoto, Akihiro Kotaka
  • Patent number: 8883696
    Abstract: The purpose of the present invention is to provide: a sliding mechanism having a lubricating film formed on the sliding surface thereof, and capable of exhibiting friction-reducing performance; and a friction reduction method for the same. To that end, the present invention entails coating the sliding surface with chromium nitride, adding a molybdenum dithiocarbamate with molybdenum in the amount of 600-1000 ppm to diesel engine oil, setting the arithmetic mean roughness of the sliding member to 2-60 nm, and upon converting the Sommerfeld number viscosity to Pa·s, the speed to s?1, and the load to mean Hertzian stress (Pa), then the lubrication conditions for use are within the range of 2.12365×10?20 to 5.94509×10?19.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: November 11, 2014
    Assignees: UD Trucks Corporation, Adeka Corporation
    Inventors: Keisuke Yari, Sachiyo Ono, Masaru Iijima, Noriyoshi Tanaka, Kenji Yamamoto, Akihiro Kotaka
  • Publication number: 20140303055
    Abstract: The lubricant composition of this invention comprises a base oil and an additive, which is at least one selected from the group consisting of an organic sulfonate, a carboxylate, a thiocarbamate and a thiophosphoric acid ester salt. The lubricant composition can effectively suppress hydrogen embrittlement-caused flaking of an element, such as a rolling bearing, a sliding bearing, a gear, a ball thread, a linear guide, a linear bearing, a cam and various joints in a high concentration hydrogen environment. The invention provides also a rolling bearing, a sliding bearing, a gear, a ball thread, a linear guide, a linear bearing, a cam and various joints using the lubricant composition.
    Type: Application
    Filed: June 23, 2014
    Publication date: October 9, 2014
    Inventors: Toshiaki ENDO, Da Ming DONG, Yutaka IMAI
  • Patent number: 8846590
    Abstract: A method of lubricating a surface coated with a diamond-like carbon film or coating which comprises supplying to said surface a lubricating oil composition comprising an oil of lubricating viscosity and an effective friction reducing amount of an oil soluble organo-molybdenum compound.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: September 30, 2014
    Assignee: Infineum International Limited
    Inventor: Rebecca Castle
  • Patent number: 8592355
    Abstract: An engine oil composition obtained by compounding: (A) a base oil mixture including a first base oil and a second base oil, the first base oil having a kinematic viscosity of 2 to 50 mm2/s at 100° C., a viscosity index of 80, and a sulfur content of less than 0.03 mass %, the second base oil having a kinematic viscosity of 2 to 50 mm2/s at 100° C., a viscosity index of 60, and a sulfur content of 0.03 mass % or more; (B) an oil-soluble molybdenum-containing composition; and (C) a molybdenum-based friction modifier; in which, based on the total amount of engine oil composition, the content of the second base oil is 0.1 to 15 mass %, the content of (B) oil-soluble molybdenum-containing composition is 10 to 1000 mass ppm in terms of amount of molybdenum, and the content of (C) molybdenum-based friction modifier is 100 to 1000 mass ppm in terms of amount of molybdenum.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: November 26, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Koki Ito
  • Publication number: 20130310289
    Abstract: Provided is a lubricating oil composition for an internal combustion engine, including: an organic molybdenum compound as a component (A); a base oil having a kinematic viscosity at 100° C. of 25 mm2/s or more as a component (B); and a base oil having a kinematic viscosity at 100° C. of less than 12.5 mm2/s as a component (C), in which the composition has a kinematic viscosity at 100° C. of 5 mm2/s to 12.5 mm2/s and a phosphorus content of 800 ppm or less.
    Type: Application
    Filed: August 19, 2011
    Publication date: November 21, 2013
    Inventors: Kazuhiro Umehara, Kenji Yamamoto, Masaki Maruyama, Yasushi Naito, Satoru Yoshida
  • Patent number: 8586516
    Abstract: There is disclosed a Super Tractor Oil Universal lubricating composition comprising an oil of lubricating viscosity formulated with an additive package comprising at least one metal detergent, at least one phosphorus-based wear preventative, and at least one molybdenum compound. Methods for improving the braking performance of a tractor and the anti-wear protection of a tractor engine are also disclosed.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: November 19, 2013
    Assignee: Afton Chemical Corporation
    Inventors: Jeffrey L. Milner, Peter L. Leitner, John M. Pietras
  • Publication number: 20130206097
    Abstract: An automotive lubricating oil composition for an internal combustion engine comprises (A) an oil of lubricating viscosity in a major amount; and (B) an oil-soluble zinc dithiocarbamate as an additive component in a minor amount in which each of the two amino groups is substituted with an aryl group and with either another aryl group, an aliphatic group or a hydrogen atom, the composition having not greater than 1600 ppm by mass of phosphorus, expressed as phosphorous atom.
    Type: Application
    Filed: August 17, 2012
    Publication date: August 15, 2013
    Inventors: Joseph P. Hartley, Jonathan P. Flemming
  • Publication number: 20130157913
    Abstract: The invention is directed to oil soluble additive compositions, lubricating oil compositions, and additive concentrates comprising the salt of (1) a molybdenum oxide, sulfide, or oxysulfide; (2) an amide reaction product of a carboxylic acid component and a polyamine component wherein the charge mole ratio (CMR) of the carboxylic acid component to the polyamine component is about 2:1 to 1:1; and (3) a post-treating agent.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 20, 2013
    Applicant: Chevron Oronite Company LLC
    Inventors: Gaurav Bhalla, Man Hon Tsang
  • Patent number: 8450255
    Abstract: The disclosed invention relates to a functional fluid comprising: at least one oil of lubricating viscosity; at least one detergent, the detergent contributing an amount of metal to the functional fluid equal to a concentration in the range from about 0.015 to about 1% by weight of the functional fluid, the detergent contributing an amount of basicity to the functional fluid equal to a total base number in the range from about 0.3 to about 2; and at least one friction modifier, the friction modifier comprising at least two hydrocarbyl groups attached to a polar group or atom (eg., a nitrogen atom).
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: May 28, 2013
    Assignee: The Lubrizol Corporation
    Inventors: Masahiko Ikeda, Susie Hurley, William D. Abraham, James L. Sumiejski, Craig D. Tipton
  • Patent number: 8445418
    Abstract: A lubricating oil composition for an internal combustion engine contains: a base oil having a viscosity index of 120 or more; and a polymer compound that includes a first constituent having a mass average molecular weight of less than 100,000 and a second constituent having a mass average molecular weight of 100,000 or more, the first constituent of 0.01 mass % to 10 mass % being contained relative to a total amount of the lubricating oil composition, preferably 0.1 mass % to 10 mass %, the second constituent of less than 0.5 mass % being contained relative to the total amount of the lubricating oil composition. A viscosity index of the lubricating oil composition is 130 or more.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: May 21, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Ryo Yamada
  • Publication number: 20130029892
    Abstract: Provided is a lubricant oil composition for an internal combustion engine which is characterized by including a base oil having a viscosity index of 125 or higher and a Noack evaporation amount (250° C.×1 h) of 15% by mass or less, and, based on a total amount of the composition, from 0.1 to 10% by mass of (A) a C2 to C20 olefin polymer having a mass average molecular weight of 500 or more and 10,000 or less and/or (B) a polymeric compound having a mass average molecular weight of 10,000 or more and less than 100,000, wherein a content of (C) a polymeric compound having a mass average molecular weight of 100,000 or more is less than 1.0% by mass. The lubricant oil composition can, despite of its low viscosity, reduce noise during running, prevent fatigue damage such as gear pitting, reduce the consumption of the oil, and provide excellent fuel saving performance.
    Type: Application
    Filed: March 18, 2011
    Publication date: January 31, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Ryou Yamada
  • Patent number: 8304374
    Abstract: The present invention relates to a lubricating composition containing a dicarboxylic acid ester or a dicarboxylic acid amide as an antiwear agent. The invention further provides a lubricating composition suitable for the mechanical device such as an internal combustion engine.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: November 6, 2012
    Assignee: The Lubrizol Corporation
    Inventors: Jason R. Brown, Patrick E. Mosier, Paul E. Adams
  • Patent number: 8299005
    Abstract: A lubricating composition is provided that has good elastomer compatibility and friction-reduced properties which comprises a base oil having a viscosity index (VI) greater than about 80, a kinematic viscosity (Kv) at 100° C. of from about 2 mm2/s to about 50 mm2/s, containing 90 wt % or more saturates, having less than about 5 ppm sulfur, and wherein the base oil is derived from a waxy feed; said composition being free of a tallow diaminepropane dioleate; and containing a minor amount of (a) a polylester of an aliphatic carboxylic acid having 12 to 24 carbon atoms and (b) an oil soluble or oil dispersible molybdenum compound.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: October 30, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Marc-Andre Poirier, Douglas E. Deckman
  • Publication number: 20120264666
    Abstract: A novel molybdenum dithiocarbamate composition is produced by preparing a di-tridecylamine (DTDA) intermediate from a butylene feedstock comprising greater than 50% 2-butylene, and preparing a molybdenum dithiocarbamate composition from the DTDA intermediate.
    Type: Application
    Filed: March 21, 2012
    Publication date: October 18, 2012
    Applicant: R.T. VANDERBILT COMPANY, INC.
    Inventors: Steven G. DONNELLY, Gaston A. Aguilar, Kevin J. Chase, William T. Wallack
  • Publication number: 20120258896
    Abstract: A lubricating oil composition comprising a zinc dithiocarbamate fraction, for use in a gasoline or diesel engine equipped with fluoroelastomer seals, wherein said zinc dithiocarbamate fraction consists essentially of zinc dithiocarbamate molecules per Formula I: having alkyl groups R1, R2, R3, and R4, wherein the weighted total average for carbon chain lengths for all molecules together is 9 or more:
    Type: Application
    Filed: April 2, 2012
    Publication date: October 11, 2012
    Applicant: R.T. VANDERBILT COMPANY, INC.
    Inventors: Gaston A. AGUILAR, Francis S. Cheng, Kevin J. Chase
  • Patent number: 8278253
    Abstract: The resistance to oxidation of a lubricating oil is enhanced by the addition to the lubricating oil of an additive amount of an ionic liquid.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: October 2, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Jacob Joseph Habeeb
  • Patent number: 8216983
    Abstract: The present invention provides a grease composition for use in a constant velocity joint, which is excellent in the resistance to flaking. The grease composition comprises the following components (a) to (d): (a) a base oil; (b) a thickener; (c) an organic molybdenum compound; and (d) at least one compound selected from the group consisting of oxides of divalent typical metals having a Mohs hardness lower than that of the steel and compounds of the foregoing divalent typical metals, which can immediately be converted into the corresponding oxides of these metals having a Mohs hardness lower than that of the steel under the boundary lubrication conditions. In particular, the present invention relates to a grease composition for use in a constant velocity joint, wherein the component (d) is zinc oxide or zinc carbonate and wherein the component (c) is molybdenum dithiocarbamate.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: July 10, 2012
    Assignee: Kyodo Yushi Co., Ltd.
    Inventors: Akira Taniguchi, Shinya Kondo
  • Patent number: 8148306
    Abstract: Compositions comprising an oil of lubricating viscosity; an amide represented by the formula R1R2N—C(O)R3 wherein R1 and R2 are hydrocarbyl groups of at least 6 carbon atoms and R3 is a hydroxyalkyl group of 1 to 6 carbon atoms or a group formed by the condensation of said hydroxyalkyl group, through a hydroxyl group thereof, with an acylating agent; a nitrogen-containing dispersant; and a phosphorus-containing compound are suitable for lubricating a transmission.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: April 3, 2012
    Assignee: The Lubrizol Corporation
    Inventors: Stuart L. Bartley, Shreyasi Lahiri, Mark R. Baker, Craig D. Tipton
  • Patent number: 8101558
    Abstract: A composition containing an oil of lubricating viscosity in a concentrate-forming or major amount; and, as an additive component, an oil-soluble or oil dispersible mononuclear molybdenum compound having a molybdenum atom having bonded thereto one or more diazenide ligands and one or more hydrocarbyl group-carrying ligands, other than diazenide ligands, the hydrocarbyl groups conferring oil-solubility or oil-dispersibility on the molybdenum compound.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: January 24, 2012
    Assignee: Infineum International Limited
    Inventors: Benjamin R. Elvidge, Aleka Hinni, Jonathan Dilworth
  • Patent number: 8044005
    Abstract: A rolling bearing, for use in household appliances, having a high degree of quietness, an excellent durability at high temperatures and rotational speeds, a low torque, and excellent fretting property; and a lubricant composition which can be sealed into the rolling bearing. The lubricant composition includes a base oil and a thickening agent. The base oil is a mixed oil having the following characteristics of (a) to (c): (a) The base oil consists essentially of a synthetic hydrocarbon oil and an ester oil; (b) A kinematic viscosity of the mixed oil at 40° C. is 40 to 70 mm2/second; (c) A mixing weight ratio between the ester oil of the mixed oil and the synthetic hydrocarbon oil thereof is 30:70 to 70:30. The thickening agent comprises a diurea compound shown by a formula (1): where R1 and R3 are a straight-chain alkyl groups having 9 to 22 carbon atoms respectively, and R2 is an aromatic hydrocarbon group having 6 to 15 carbon atoms. The lubricant composition is sealed into the rolling bearing.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: October 25, 2011
    Assignee: NTN Corporation
    Inventors: Hidenobu Mikami, Seiji Okamura, Hiroki Iwamatsu, Masashi Mitsuoka
  • Patent number: 8034753
    Abstract: A low SAPS lubricating oil composition exhibiting excellent piston cleanliness having up to 0.3 wt. % sulfur, up to 0.08 wt. % phosphorus, and a sulfated ash content up to 0.80 wt. % comprising an overbased alkali metal or alkaline earth metal alkyl salicylate detergent having a low soap content.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: October 11, 2011
    Assignee: Infineum International Limited
    Inventor: Robert W. Shaw
  • Patent number: 8026199
    Abstract: 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: Grant
    Filed: November 1, 2007
    Date of Patent: September 27, 2011
    Assignee: Nippon Oil Corporation
    Inventors: Shigeki Matsui, Koji Hoshino, Shigeki Takeshima
  • Patent number: 8003584
    Abstract: There is disclosed a lubricating composition comprising a friction modifier and a base oil comprising less than about 3% by weight of tetracycloparaffins. Methods of making and using the composition are also disclosed.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: August 23, 2011
    Assignee: Afton Chemical Corporation
    Inventors: Mark T. Devlin, Tze-chi Jao, John T. Loper, Helen T. Ryan, Carl K. Esche
  • Patent number: 7989407
    Abstract: The present invention is directed to lubricating oils exhibiting improved resistance to oxidation and deposit/sludge formation comprising a lubricant base oil and an effective amount of a catalytic antioxidant comprising one or more polymetal organometallic compound, to a method for improving the antioxidancy and the resistance to deposit/sludge formation of formulated lubricating oil compositions by the addition thereto of an effective amount of the aforementioned polymetal organometallic compound, and to an additive concentrate containing the aforementioned polymetal organometallic compound.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: August 2, 2011
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Jacob J. Habeeb, Steven P. Rucker, Michael E. Landis, Abhimanyu O. Patil
  • Publication number: 20110166053
    Abstract: A lubricating oil composition for an internal combustion engine contains: a base oil having a viscosity index of 120 or more; and a polymer compound that includes a first constituent having a mass average molecular weight of less than 100,000 and a second constituent having a mass average molecular weight of 100,000 or more, the first constituent of 0.01 mass % to 10 mass % being contained relative to a total amount of the lubricating oil composition, preferably 0.1 mass % to 10 mass %, the second constituent of less than 0.5 mass % being contained relative to the total amount of the lubricating oil composition. A viscosity index of the lubricating oil composition is 130 or more.
    Type: Application
    Filed: September 17, 2009
    Publication date: July 7, 2011
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Ryo Yamada
  • Publication number: 20110077180
    Abstract: The invention is directed to oil soluble additive compositions, lubricating oil compositions derived from a process for preparing a sulfurized oil soluble molybdenum complex having reduced active sulfur comprising: reacting an acidic molybdenum compound with an amide derived from a carboxylic acid component an polyamine component in a ratio from 2:1 to 1:1; there after sulfurizing to provide a sulfurized oil soluble molybdenum which is subsequently treated with at least one compound capable of reacting with the active sulfur of step b).
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Inventors: Qunlai Chen, Man Hon Tsang, Gaurav Bhalla, William R. Ruhe, JR.
  • Patent number: 7910526
    Abstract: The present invention provides a grease composition for use in constant velocity joints, which comprises the following components (a) to (g) and a constant velocity joint comprising the grease composition sealed or encapsulated therein: (a) a base oil; (b) a diurea thickener represented by the following general formula: R1NH—CO—NH—C6H4-p-CH2—C6H4-p-NH—CO—NHR2 wherein R1 and R2 each independently represents an alkyl group having 8 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms or a cycloalkyl group having 6 to 12 carbon atoms; (c) a molybdenum dialkyl dithiocarbamate insoluble in the base oil; (d) a molybdenum dialkyl dithiocarbamate soluble in the base oil; (e) molybdenum disulfide; (f) at least one member selected from the group consisting of calcium phenate and calcium sulfonate; and (g) a sulfur-containing extreme-pressure agent free of phosphorus.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: March 22, 2011
    Assignees: Kyodo Yushi Co., Ltd., NTN Corporation
    Inventors: Mitsuhiro Kakizaki, Takashi Okaniwa, Minoru Ishijima, Shinichi Takabe
  • Patent number: 7906469
    Abstract: 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 the lubricating oil composition with at least 200 ppm of magnesium, an amount of a sulfur-containing molybdenum compound providing the lubricating oil composition with at least 20 ppm of molybdenum, and at least one nitrogen-containing dispersant providing the lubricating oil composition with at least 0.9 mass % nitrogen, which compositions provide improved top ring wear protection in internal combustion engines.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: March 15, 2011
    Assignee: Infineum International Limited
    Inventors: Stephen Arrowsmith, Matthew D. Irving
  • Patent number: 7888298
    Abstract: A lubricant composition for providing friction reducing properties and VI and solvency improving properties in a lubricant system is disclosed. The lubricant composition comprises a major amount of at least one base oil and an effective amount of a high viscosity polyester additive having a kinematic viscosity at 100° C. of at least about 2,500 mm2/s.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: February 15, 2011
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Marc-Andre Poirier, Kevin L. Crouthamel
  • Patent number: 7879776
    Abstract: A lubricant additive produced by the process comprising mixing an organophosphate and an organofluorine compound and reacting the organophosphate and the organofluorine compound to produce a reaction mixture comprising the lubricant additive. Also, a lubricant produced by the process comprising forming a reaction mixture by reacting an organophosphate and an organofluorine and adding at least a portion of the reaction mixture to a lubricant base.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: February 1, 2011
    Inventors: Krupal Patel, Pranesh B. Aswath, Harold Shaub, Ronald L. Elsenbaumer
  • Publication number: 20110021391
    Abstract: A grease composition which has a good compatibility with boots made of rubber or thermoplastic elastomer, and which also gives enhanced endurance, low wear and low friction in use in constant velocity joints is disclosed. A grease composition is suggested comprising a) at least one base oil; b) 5% by weight to 40% by weight of at least one calcium sulphonate soap and/or calcium sulphonate complex soap as a thickener; and c) at least one molybdenum containing additive.
    Type: Application
    Filed: October 1, 2010
    Publication date: January 27, 2011
    Inventors: Jisheng E, Frank Reher, Stefanie Rosenkranz, Bernd Falk, Lothar Gasper, Mario Witzdam
  • Patent number: 7871966
    Abstract: The present invention provides a lubricating oil composition, which is capable to maintain sufficient low-friction (i.e. fuel saving performance) even when the lubricating oil is contaminated with soot and metal abrasion powder, which is excellent in durability with regard to anti-wear property and detergency, as well as oxidation stability, and which is capable to lower the ash content and to sufficiently maintain the performance of exhaust-gas after-treatment device for a long term. The lubricating oil composition comprises a lubricant base oil containing a base oil (X) of which % CP is 70 or more, % CA is 1 or less, viscosity index is 115 or more, and CCS viscosity at ?35° C. is 3000 mPa·s or less, wherein the lubricant base oil, to total mass of the composition, contains following components (A)˜(D): (A) 0.01˜10 mass % of ashless friction modifier; (B) 0.01˜0.2 mass % of phosphorus-containing anti-wear agent as phosphorous content; (C) 0.01˜1 mass % of metallic detergent as metal content; and (D) 0.01˜0.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: January 18, 2011
    Assignee: Nippon Oil Corporation
    Inventor: Shigeki Matsui
  • Patent number: 7867957
    Abstract: The lubricating oil composition of the invention comprises a lubricating base oil with a urea adduct value of no greater than 4% by mass and a viscosity index of 100 or higher, an ashless friction modifier at 0.01-10% by mass and a phosphorus-containing anti-wear agent at 0.01-0.2% by mass as phosphorus, based on the total amount of the composition.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: January 11, 2011
    Assignee: Nippon Oil Corporation
    Inventors: Shigeki Matsui, Kazuo Tagawa
  • Patent number: 7838472
    Abstract: An oil composition for cutting and grinding by minimal quantity lubrication system and for sliding surface according to the present invention comprises an ester and a sulfur compound and/or a phosphorus compound.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: November 23, 2010
    Assignee: Nippon Oil Corporation
    Inventors: Hideo Yokota, Masanori Ibi, Satoshi Suda
  • Patent number: 7838473
    Abstract: A lubricating oil composition of TBN 8-9 having up to 0.3 wt. % sulfur, up to 0.08 wt. % phosphorus, and a sulfated ash content up to 0.80 wt. %, comprising an overbased magnesium-containing lubricating oil detergent, and 2.5 to 4 wt. % of a nitrogen-containing ashless dispersant.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: November 23, 2010
    Assignee: Infineum International Limited
    Inventors: Robert W. Shaw, Michele Anne Thornhill
  • Patent number: 7825076
    Abstract: The present invention relates to lubricating oils, and in particular to the use of lubricating oils with low sulphur content in combination with a low sulphur fuel to reduce particulate emissions of a diesel engine equipped with a particulate trap. Thus, there is provided the use of an engine lubricating oil having a low sulphur content in combination with a fuel having a low sulphur content, to reduce the emissions of nucleation mode particles from a diesel engine fitted with a particulate trap. There is also provided a method of reducing the number of nucleation mode particles in the emissions from a diesel engine fitted with a particulate trap, which method comprises using an engine lubricating oil having a low sulphur content in combination with a fuel having a low sulphur content.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: November 2, 2010
    Assignee: BP Oil International Limited
    Inventor: Diane Elsie Hall
  • Patent number: 7820601
    Abstract: A system and method for improving lubrication in a fluid dynamic bearing are disclosed. A fluid dynamic bearing comprising a rotor portion and a stator portion is formed. In addition, a lubricating fluid comprising a high pressure lubricant is provided between the rotor portion and the stator portion of the fluid dynamic bearing, wherein the high pressure lubricant provides extreme pressure protection of the rotor portion and the stator portion of the fluid dynamic bearing.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: October 26, 2010
    Assignee: Hitachi Global Storage Technologies Netherlands, B.V.
    Inventors: Thomas E. Karis, Kunihiro Shida