Lubricants Or Separants For Moving Solid Surfaces And Miscellaneous Mineral Oil Compositions (e.g., Water Containing, Etc.) Patents (Class 508/110)
  • Patent number: 7939476
    Abstract: The present invention provides a friction control composition comprising a binder a rheological control agent, and optionally a lubricant. The liquid friction control composition may also comprise other components a wetting agent, a consistency modifier, and a preservative. The liquid friction control compositions may be used to modify the interfacial friction characteristics in sliding and rolling-sliding contact such as steel wheel-rail systems including mass transit and freight systems. A method of reducing lateral force, reducing energy consumption, or controlling friction between a metal surface and a second metal surface by applying the composition to metal surface, for example a top of rail or wheel, is also provided. The composition may be sprayed onto the rail surface.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: May 10, 2011
    Assignee: Kelsan Technologies Corp.
    Inventors: Don Eadie, Xin Lu, John Cotter
  • Patent number: 7932217
    Abstract: A gear oil composition is provided. The composition comprises a synergistic amount of an isomerized base oil having consecutive numbers of carbon atoms and less than 10 wt % naphthenic carbon by n-d-M for the gear oil composition to have a traction coefficient at 15 mm2/s. of less than 0.030 and a pressure viscosity coefficient of at least 15.0 at 80° C., 20 Newton load, and 1.1 m/s rolling speed. In one embodiment, the sufficient amount of isomerized base oil ranges from 20 to 80 wt. % based on the total weight of the gear oil composition.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: April 26, 2011
    Assignee: Chevron U.S.A., Inc.
    Inventors: Allan G. Hee, Trevor Miller
  • Patent number: 7919438
    Abstract: A method of cooling and lubricating an interface between a tool and a workpiece. A transiently stable emulsion is prepared including a water insoluble lubricant in water. The transiently stable emulsion, while stable, is introduced to the tool and/or the workpiece.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: April 5, 2011
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Nanda Kishore Rajagopalan, Mark Greeley
  • Publication number: 20110077179
    Abstract: A trunk piston engine lubricating oil composition is disclosed. The trunk piston engine lubricating oil composition includes at least (a) a major amount of a basestock selected from the group consisting of at least one Group III basestock, at least one Group IV basestock and mixtures thereof; (b) at least one detergent additive; and (c) at least one dispersant additive; wherein the concentration of the at least one dispersant additive in the trunk piston engine lubricating oil composition is at least about 0.1 wt. % on an actives basis, based on the total weight of the lubricating oil composition.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Applicants: Chevron Oronite Technology B.V., Chevron Oronite Company LLC
    Inventors: Wilhellmus Petrus Antonie Van Houten, Jeffrey James Toman
  • Patent number: 7914697
    Abstract: The refrigerating machine oil composition of the invention is characterized by containing a mixed base oil which has a kinematic viscosity at 40° C. of 0.11 to 8 mm2/s and which is composed of a low-viscosity base oil (A) having a kinematic viscosity at 40° C. of 5 mm2/s or lower, and a high-viscosity base oil (B) having a kinematic viscosity at 40° C. of 20 to 400 mm2/s, each of the base oil (A) and (B) being composed of at least one species selected from among a mineral oil, a synthetic hydrocarbon compound, an oxygen-containing compound, and a sulfur-containing compound. The refrigerating machine oil composition exhibits enhanced energy saving performance by virtue of its low viscosity, has excellent sealing performance and load resistance, and can be employed in various refrigeration means, particularly suitably in a closed-type refrigerator.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: March 29, 2011
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Masato Kaneko
  • Publication number: 20110059880
    Abstract: A composition of compressor working fluid including a dissolved gas or a condensate from a dissolved gas, and a base fluid including at least a first base stock and a second base stock, wherein the viscosity difference between the first base stock and the second base stock is greater than 125 cSt, Kv 100° C. A composition of compressor working fluid including a dissolved gas or a condensate from a dissolved gas, and a base fluid including a first base stock and a second base stock, wherein the viscosity difference between the first and second base stock is greater than 40 cSt, Kv 100° C., and wherein the first and second base stocks are each polyglycol or polyalkylene glycol base derived from propylene oxide. A method of achieving favorable viscosity index for a compressor working fluid. A method of reducing dilution from gas being compressed for a compressor working fluid.
    Type: Application
    Filed: September 9, 2009
    Publication date: March 10, 2011
    Inventor: Glenn Short
  • Publication number: 20110059879
    Abstract: A lubricating grease composition is disclosed. In one embodiment, the lubricating grease comprises at least one Group I oil, at least one Group II oil, a hydrophilic copolymer, and a soap thickener. The thickener is dispersed into at least one Group I oil during a cooking phase and the at least one Group II oil is introduced during a finishing phase. A method for making a lubricating grease is also disclosed. The method comprises obtaining at least one Group I oil, obtaining at least one Group II oil, obtaining a hydrophilic copolymer, obtaining a soap thickener, and mixing the at least one Group I oil, the least one Group II oil, the polymer and the soap thickener to form a grease wherein the thickener is dispersed into the at least one Group I oil during a cooking phase and at least one Group II oil is introduced during a finishing phase.
    Type: Application
    Filed: December 4, 2009
    Publication date: March 10, 2011
    Inventors: Carol A. Barnes, Kamilah N. Smith, Alan G. Blahey, Douglas C. MacLaren
  • Publication number: 20110059878
    Abstract: The present disclosure relates to lubricant oil compositions formed from base stock oils to optimize internal combustion engine performance. Base stock oils are identified that have selected cetane number characteristics and relatively reduced reactivity to improve their associated combustion characteristics and reduce engine knock without the need to modify the engine fuel or engine parameters such as compression ratio and/or ignition timing. The base stocks may specifically include esters of dicarboxylic acids, esters of trimellitic anhydride and/or alklyated naphthalene compounds.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 10, 2011
    Applicant: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Manfred AMANN, Terrence Francis ALGER, II, Thomas W. RYAN, III
  • Patent number: 7902129
    Abstract: Lubrication substrates are disclosed that have been treated with or that carry a lubricant for maintaining a paper shredder. The lubrication substrate is fed through the shredding mechanism of a paper shredder. Rather than requiring disassembly of the paper shredder, maintenance and lubrication can be performed by passing the lubrication substrate through the shredding mechanism. The lubrication substrates can take any of a variety of forms, and can be substantially rigid and/or stiff. The lubrication substrates can also include scented lubricants and decomposing agents. Paper shredders are also disclosed for use with the lubrication substrates. The paper shredders can have various means for identifying when lubrication is needed and/or when the cutting mechanism of the paper shredder is lubricated by a lubrication sheet. Paper shredders having a reservoir of lubricant for delivery to the cutting mechanism of the paper shredder are also disclosed.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: March 8, 2011
    Assignee: Buttercup Legacy, LLC
    Inventor: Mark S. Allen
  • Publication number: 20110046028
    Abstract: Provided are a mixed nano-lubricating oil and a method for preparing the same. The method for preparing a mixed nano-lubricating oil includes the steps of: (a) preparing a mixed solution by adding and mixing a nanopowder and a dispersant to a solvent and pulverizing the nanopowder to a primary particle level; (b) modifying the surface of the nanopowder; (c) substituting the solvent of the mixed solution to a lubricating oil; and (d) mixing at least two nano-lubricating oils prepared using physically and chemically different nanopowders. According to the present invention, it is possible to improve the wear resistance and the load resistance at the same time by mixing at least two kinds of lubricating oils having excellent wear resistance or load resistance.
    Type: Application
    Filed: April 22, 2010
    Publication date: February 24, 2011
    Applicant: KOREA ELECTRIC POWER CORPORATION
    Inventors: Cheol CHOI, Je Myung OH, Mi Hee JUNG
  • Publication number: 20110028362
    Abstract: Provided are compositions for use in Automatic Transmission Fluids. More specifically, provided are Automatic Transmission Fluids made using Gas-to-Liquids lubricant base oils, which are formulated with minimal to no polymeric Viscosity Index improvers and processes for production thereof. The automatic transmission fluids disclosed herein contain a) a lubricant base oil having a Viscosity Index greater than a Viscosity Index Factor as calculated by the following equation: Viscosity Index Factor=28×ln(Kinematic Viscosity at 100° C.)+90; b) an automatic transmission fluid additive package; and c) less than 1.0 wt % Viscosity Index improver. The automatic transmission fluid has a kinematic viscosity at ?7° C. of less than 300 mm2/s, and a kinematic viscosity at 100° C. between 5.0 and 6.0 mm2/s.
    Type: Application
    Filed: October 4, 2010
    Publication date: February 3, 2011
    Applicant: Chevron U.S.A. Inc.
    Inventor: Clive J. Webber
  • Publication number: 20110021395
    Abstract: A trunk piston engine lubricating oil composition comprising (a) a major amount of a base stock comprising at least 90% by weight saturated hydrocarbons; and (b) a minor amount of a base oil having a viscosity index of less than 70 and a cycloaliphatic hydrocarbon content of at least about 25 wt. % is disclosed.
    Type: Application
    Filed: July 24, 2009
    Publication date: January 27, 2011
    Applicant: Chevron Oronite Technology B.V.
    Inventor: Wilhelmus P.A. Van Houten
  • Publication number: 20110015103
    Abstract: A universal synthetic water displacement multi-purpose penetrating lubricant with the capacity to protect metal surfaces against corrosion, with galvanic and electrolysis protection, while providing excellent lubrication properties. The lubricant actively penetrates the crystalline surface of the metal while exhibiting extreme pressure lubrication, non-migrating with lasting protection. The lubricant exhibits dielectric strength of over 14,000 volts, at the same time cleaning electrical contacts while reducing resistance and associated heat. A preferred embodiment comprises polymerized alpha-olefins, K-1 kerosene, and at least one base oil selected from the base oil group consisting of Hydroisomerized high base oils and HT severe hydro-cracked base oils. Various combinations of other optional ingredients are also disclosed.
    Type: Application
    Filed: September 22, 2010
    Publication date: January 20, 2011
    Applicant: BESTLINE INTERNATIONAL RESEARCH, INC
    Inventor: Ronald J. Sloan
  • Publication number: 20110007990
    Abstract: The present invention provides a grease composition (7) which has a low friction and a low viscosity and is durable at a high temperature and a grease-sealed bearing (1) in which the grease composition is enclosed. The grease composition contains base oil, a thickener, and an additive. The base oil contains an ionic liquid consisting of a cation component and an anion component. The additive contains a corrosion inhibitor such as nitrites, molybdates or dibasic acid salts. The thickener is fluorine resin such as polytetrafluoroethylene. The grease composition (7) is applied to a periphery of each rolling element (4) of the grease-sealed bearing (1).
    Type: Application
    Filed: March 31, 2009
    Publication date: January 13, 2011
    Applicant: NTN CORPORATION
    Inventor: Takayuki Kawamura
  • Patent number: 7867955
    Abstract: A method of reducing the occurrence of ring-sticking in an internal combustion engine in which the crankcase of such an engine is lubricated with a multigrade crankcase lubricating oil composition containing 1 to 15 mass %, based on the mass of the oil composition, of a non-hydrogenated olefin polymer having a number average molecular weight in the range of 100 to 5,000.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: January 11, 2011
    Assignee: Infineum International Limited
    Inventors: Michael J. Conroy, Michele A. Thornhill
  • Patent number: 7850843
    Abstract: A more energy-efficient method of processing crude oil is achieved by viscoelastic shearing in order to increase the vapor pressure of the crude oil. This change in vapor pressure allows a more efficient separation of volatile components from non-volatile components in the crude oil. By optimizing the energy expenditure for shearing and the energy expenditure for separating the volatile components from the non-volatile components of the crude oil, while simultaneously removing the volatile components by distillation, one can reduce the overall energy input for the separation. Alternatively, it is possible to affect the distillation at a reduced temperature.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: December 14, 2010
    Assignee: Petroshear Corporation
    Inventor: Richard N. Zare
  • Patent number: 7846884
    Abstract: Lubricating oil compositions containing (a) at least one oil of lubricating viscosity and (b) an effective amount of at least one thio-functionalized phenylenediamine compound of the general formula: wherein R1, R2, R3, R4 and n are as defined herein are provided. Methods of operating an engine employing the lubricating oil composition are also provided.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: December 7, 2010
    Assignee: Chemtura Corporation
    Inventor: Qinggao Ma
  • Patent number: 7846326
    Abstract: Improved crude oil processing is achieved by viscoelastic shearing of crude oil at an elevated temperature. The shearing provides for an enriched light fraction and an enriched heavy fraction that can be more efficiently separated by distillation. Shearing is achieved using a mobile surface and immobile surface, or other flow geometry, under conditions providing for a transient phase separation.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: December 7, 2010
    Assignee: Petroshear Corporation
    Inventor: Richard N. Zare
  • Patent number: 7846880
    Abstract: A lubricant, comprising a light base oil fraction having a wt % Noack volatility between 0 and 100 and additionally less than a Noack Volatility Factor (NVF), wherein the Noack Volatility Factor is defined by the equation; 900×(Kinematic Viscosity at 100° C.)?2.8?15, and optionally one or more additional additives. A process to make the light base oil fraction, comprising hydroisomerization dewaxing a waxy feed in a series of two or more reactors, and recovering the light base oil fraction having a low wt % Noack volatility. Also, a light base oil fraction having a wt % Noack volatility between 0 and 100 and additionally less than the NVF, made by the process of hydroisomerization dewaxing a waxy feed in a series of reactors.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: December 7, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: John M. Rosenbaum, Nancy J. Bertrand, Scott C. Deskin, Brent K. Lok, Shuibo Xie, Stephen J. Miller
  • Publication number: 20100298180
    Abstract: An anti-seize composition includes lubricating solids and at least one of a material selected from a grease and an oil. The lubricating solids include at least 15 weight percent of nano-sized lubricating solid particles. The nano-sized lubricating solid particles each have at least one dimension, on average, of less than 500 nm.
    Type: Application
    Filed: May 21, 2009
    Publication date: November 25, 2010
    Applicant: Henkel Corporation
    Inventors: Prakash S. Patel, Shabbir Attarwala
  • Patent number: 7838470
    Abstract: A multigrade crankcase lubricating oil composition comprising a mineral oil-based basestock of lubricating viscosity in a major amount and a non-hydrogenated olefin polymer in a minor amount. The lubricating oil composition also comprises a dispersant, a metal detergent, one or more other additives, and a viscosity modifier.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: November 23, 2010
    Assignee: Infineum International Limited
    Inventors: Robert W. Shaw, Ian A. W. Bell, Robert Robson
  • Patent number: 7838471
    Abstract: The invention relates to compositions comprising a blend of Group II basestocks and low volatility, low viscosity PAO basestocks. The blend is particularly useful for preparing finished lubricants that meet or even exceed the criteria for SAE Grade 0W multi-grade engine oils. The combination of these low volatility, low viscosity PAOs with Group II basestocks provide, in embodiments, the necessary performance criteria in automatic transmission fluids, automotive or industrial gear oils, hydraulic fluids, or any other high performance lubricant requiring a combination of excellent low fluidity and low volatility.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: November 23, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Fahimeh Pedram Shirazi, William Grant Britton
  • Publication number: 20100292039
    Abstract: An oil-free chain is constructed by alternately connecting a pair of outer link plates connected using pins and a pair of inner link plates connected using oil-impregnated bushings into which the adjacent pins of the outer link plates adjacent to the inner link plates are fitted. The oil-impregnated bushings are impregnated with a lubricant having a kinematic viscosity in the range of ISO-VG grade 46 to 460, the weight % of an ingredient having the highest content among the elution ingredients obtained by the GPC method is 95 wt % or more, Mn is 800 or more and 2300 or less, and the ratio of Mw to Mn is 1.0 or more and 1.3 or less. Oil film breakage at the sliding portions of the bushings is suppressed from occurring and the oil film strength is high such that an oil-free chain has a sufficiently long abrasion elongation-resistant life.
    Type: Application
    Filed: July 24, 2008
    Publication date: November 18, 2010
    Applicant: TSUBAKIMOTO CHAIN CO.
    Inventor: Koji Tanaka
  • Patent number: 7833951
    Abstract: The invention provides a water-soluble metal working lubricant which is suitably employed particularly in press-working of aluminum material and which is excellent in both working properties and degreasing properties. The water-soluble metal working lubricant includes 85 mass % or less of water (A); 5 to 75 mass % of a metal salt of an organic carboxylic acid (B) wherein carboxylic acid residue has 8 or more carbon atoms in total and the acid/alkali ratio by mole is 1:0.5 to 1.1; 1 to 50 mass % of at least one metal salt (C) selected from among an organic phosphate ester metal salt, an organic phosphite ester metal salt, an organic phosphonate metal salt, and an organic borate ester metal salt, each having an alkyl group having 8 or more carbon atoms in total; and 10 to 80 mass % of a non-ionic surfactant (D).
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: November 16, 2010
    Assignees: Honda Motor Co., Ltd., Idemitsu Kosan Co., Ltd.
    Inventors: Noboru Hayashi, Katsuhiko Shiotsuki, Mitsuru Osawa, Masato Kaneko, Hideo Kanamori
  • Publication number: 20100279904
    Abstract: An electrical insulating oil composition comprising a heavy reformate as an anti-gassing agent is provided with excellent gassing tendency. In one embodiment, the composition displays a gassing performance of <30 ?L per minute as measured according to ASTM D2300-08. In a second embodiment, the composition displays a gassing performance of <0 ?L per minute.
    Type: Application
    Filed: June 8, 2010
    Publication date: November 4, 2010
    Inventors: Scott C. Deskin, Ravindra Shah, John M. Rosenbaum, Nancy J. Bertrand, Doran Y. Lum, Thomas D'Amico, Ryan Joseph Schexnaydre
  • Publication number: 20100276229
    Abstract: A lubricant and method for cleaning a drive chain of an apparatus, such as a bicycle or motorcycle. The lubricant of the present invention comprises a water miscible lubricating material, that will tend to stay on the chain during dry, and typical wet condition encountered on a bicycle, yet enable the removal with a direct blast from a solvent. The method for cleaning the drive chain comprises providing the solvent, such as any polar liquid, such as water. A continuous supply of clean solvent may be available from a source, such as a common garden hose or bottle. Forceful spraying onto the first surface in the direction of the arrows removes lubricant that is contaminated with dirt and/or sand from the first surface of the chain to form a layer of solvent and contaminated lubricant on the ground upon which the apparatus is supported or rides.
    Type: Application
    Filed: May 3, 2010
    Publication date: November 4, 2010
    Inventor: Steven J. Winckler
  • Patent number: 7825077
    Abstract: This invention provides a composition of lubricating oil for two stroke gasoline engine and a process for the preparation thereof. In addition to alkyl benzenes, the composition also contains an antioxidant, an antifoaming agent, a pour point dispersant, a corrosion inhibitor and a detergent-dispersant additive, an extreme pressure additive, a lubrication additives, comprising of the following steps (I) removing of insoluble matter from the base stock, (II) tailoring by vacuum distillation, (III) blending of different alkylates, (IV) removing the oxidized matters by adsorption, (V) addition of performance additives and homogenizing the mixture. The product of this invention has utility as lubricating oil for two stroke gasoline engine in both water-cooled and air-cooled two-cycle gasoline engines producing reduced smoke.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: November 2, 2010
    Assignee: Council of Scientific and Industrial Research
    Inventors: Arun Kumar Singh, Naval Kishore Pandey, Ashok Kumar Gupta
  • Publication number: 20100273688
    Abstract: A penetrating lubricant with the capacity to offer a both penetration into rust and corrosion. Further, this lubricant actively penetrates the crystalline surface of the metal while exhibiting extreme pressure lubrication, non-migrating with lasting protection. Further lubricant exhibits dielectric strength of over 8000 volts, at the same time cleaning electrical contacts, thereby reducing resistance and associated heat. The preferred embodiment contains alpha-olefins, low-odor aromatic solvents, base oils, and high flash mineral spirits.
    Type: Application
    Filed: December 18, 2008
    Publication date: October 28, 2010
    Applicant: BESTLINE INTERNATIONAL RESEARCH INC.
    Inventor: Ronald J. Sloan
  • Patent number: 7811975
    Abstract: Improved boron-based metal working and machining fluids. Boric acid and boron-based additives that, when mixed with certain carrier fluids, such as water, cellulose and/or cellulose derivatives, polyhydric alcohol, polyalkylene glycol, polyvinyl alcohol, starch, dextrin, in solid and/or solvated forms result in improved metalworking and machining of metallic work pieces. Fluids manufactured with boric acid or boron-based additives effectively reduce friction, prevent galling and severe wear problems on cutting and forming tools.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: October 12, 2010
    Inventors: Ali Erdemir, Frank Sykora, Mark Dorbeck
  • Publication number: 20100256026
    Abstract: Provided are lubricant compositions containing ethylene/?-olefin copolymer viscosity modifiers which impart unique viscometrics in high VI/low aromatics base stocks for engine oil applications. In one form, the lubricant compositions include a blend of Group I to Group V base stocks, or mixtures thereof, and an ethylene/?-olefin copolymer made from ethylene with one or more ?-olefin, wherein the ?-olefin has from 3 to 18 carbon atoms and the ethylene/?-olefin copolymer has a number average molecular weight between 800 and 20,000 and a molecular weight distribution of less than 3.0.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 7, 2010
    Inventors: Margaret May-Som Wu, Willie Allan Givens, JR.
  • Patent number: 7799745
    Abstract: A lubricant additive gel formed by the gellation of two or more lubricant additives for the slow release of the additive components into a fluid. The lubricant additive gel slowly releases into its component lubricant additives when contacted with the fluid such as an oil thereby serving as a lubricant fluid such as an oil thereby.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: September 21, 2010
    Assignee: The Lubrizol Corporation
    Inventors: James D. Burrington, Bruce H. Grasser, Herman F. George, John R. Martin, John K. Pudelski, James P. Roski, Barbara L. Soukup, Melinda E. Bartlett
  • Patent number: 7786057
    Abstract: Linked aromatic compounds found to act as potent soot dispersants in lubricating oil compositions; lubricating, oil compositions containing such soot dispersants and precursor compounds from which the soot dispersants are derived.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: August 31, 2010
    Assignee: Infineum International Limited
    Inventors: Tushar K. Bera, Jacob Emert, Jun Hua
  • Patent number: 7786055
    Abstract: This invention relates to the clear, substantially anhydrous, warming compositions containing one or more polyhydric alcohols. The invention also relates to the compositions that include at least one or more antioxidant or antioxidants in combination selected from the group consisting of tocopherol, ascorbic acid and butylated hydroxytoluene (BHT), to prevent oxidation of polyhydric alcohol combination that results in the development of odor.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: August 31, 2010
    Assignee: McNeil-PPC, Inc.
    Inventors: Nawaz Ahmad, Cheng-Ji Cui, Vinayak Santayya Kamat, Shirley Ng
  • Publication number: 20100210493
    Abstract: A method for preventing or inhibiting exhaust valve seat recession in a natural gas fueled engine, the method comprising lubricating the engine with a natural gas engine lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity; and (b) an alkali metal-containing detergent, wherein the natural gas engine lubricating oil composition is substantially free of each of any alkaline earth metal-containing detergents and lithium-containing detergents is disclosed.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 19, 2010
    Applicant: Chevron Oronite Company LLC
    Inventors: Melanie F. Tobias, Jon F. Von Staden
  • Patent number: 7776804
    Abstract: A lubricant composition comprising an oil of lubricating viscosity; (A) 0.05 to 1.5 percent by weight of a copolymer comprising 70 to 79 percent by weight of units derived from ethylene (“E”), having a Mw of 50,000 to 100,000, Mw/ Mn less than 3, density (“D”) of 860 to 896 kg/m3, and a melting point (“Tm”) of 15° C. to 60° C., wherein E and Tm fulfill the expression 3.44E?206?Tm; and (B) 0.05 to 1.5 percent by weight of a block- copolymer comprising a first block which comprises a vinyl aromatic comonomer and a second block which comprises a diene comonomer, the diene monomer-containing block being hydrogenated; wherein the weight ratio (A):(B) is 20:80 to 60:40; exhibits good low temperature performance and durability.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: August 17, 2010
    Assignee: The Lubrizol Corporation
    Inventors: Chor Huang, Lewis Breon
  • Publication number: 20100204073
    Abstract: Lubricant formulations and methods for producing lubricant formulations are described that provide improved wear protection in engines operated using ethanol-based fuels. The improved wear protection may be provided by an increased amount of overbased calcium detergent present in the formulation.
    Type: Application
    Filed: April 8, 2010
    Publication date: August 12, 2010
    Applicant: AFTON CHEMICAL CORPORATION
    Inventors: Gregory H. GUINTHER, Roger M. SHEETS
  • Publication number: 20100198168
    Abstract: The invention relates to a coating formulation for preparing a hydrophilic coating, wherein the hydrophilic coating formulation comprises a supporting monomer and/or polymer comprising at least 2 reactive moieties capable of undergoing polymerization reactions, a polyelectrolyte, a Norrish Type I photoinitiator, and a Norrish Type II photoinitiator.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 5, 2010
    Applicant: DSM IP ASSETS B.V.
    Inventor: Marnix Rooijmans
  • Publication number: 20100190669
    Abstract: The present invention relates to a method of lubricating an aluminium-composite surface by supplying to the aluminium composite surface (typically an internal combustion engine aluminium surface) a lubricating composition comprising an oil of lubricating viscosity and an ashless antiwear agent.
    Type: Application
    Filed: May 15, 2008
    Publication date: July 29, 2010
    Applicant: THE LUBRIZOL CORPORATION
    Inventors: Mark Davies, Rodney J. McAtee
  • Publication number: 20100179079
    Abstract: Provided is a lubricating oil for continuously variable transmissions characterized by that used as a base oil are a synthetic oil I having the following properties: (a) a traction coefficient at 120° C. is 115% or more of that of 2,4-dicyclohexyl-2-methylpentane, (b) a viscosity at ?40° C. is not higher than a viscosity (260 Pa·s) of 2,4-dicyclohexyl-2-methylpentane and (c) a viscosity index is 65 or higher and a synthetic oil II having a viscosity of 1 Pa·s or lower at ?40° C. and that the above base oil has a specific property. The above lubricating oil is a lubricating oil for continuously variable transmissions which has a high traction coefficient even at high temperature and is endowed with a good low temperature fluidity and which is suited as a lubricating oil for continuously variable transmissions for automobiles.
    Type: Application
    Filed: June 24, 2008
    Publication date: July 15, 2010
    Applicant: IDEMITSU KOSAN CO., LTD
    Inventors: Hiroki Sekiguchi, Yukio Yoshida, Sumihiro Oda, Toshiyuki Tsubouchi, Hidetoshi Koga
  • Patent number: 7745560
    Abstract: The invention relates to modified silicone polymers for improving the gliding properties of sports equipment, to compositions containing the same, and to their use for this purpose. The silicone polymers are, above all, alkyl-modified silicone polymers which comprise at least one hydrocarbon group having 16 to 18 carbon atoms, and/or organofunctionalized silicone polymers which comprise at least one functionalized hydrocarbon group having 1 to 10 carbon atoms.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: June 29, 2010
    Assignee: Holmenkol AG
    Inventors: Markus Schütz, Holger Bender, Florian Felix
  • Patent number: 7740710
    Abstract: The present invention relates to the use of a mixture, comprising one or more alkyl esters of fatty acids and one or more esters of fatty acids of glycerol carbonate, as a fuel or solvent.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: June 22, 2010
    Assignee: Polimeri Europa S.p.A.
    Inventors: Marcello Notari, Franco Rivetti
  • Patent number: 7741256
    Abstract: A lubricant composition contains poly-?-olefin oil having a kinematic viscosity of 1500 to 13000 mm 2/s (40° C.) as a base oil and from 45 to 50% by weight of a thickener composed of polytetrafluoroethylene. The lubricant composition may be used for lubricating an expandable shaft having a pair of shaft members filled with the lubricant composition to prevent stick-slip from occurring when a high surface pressure is applied thereto, thereby allowing consistent maintenance of good lubricating performance. Such an expandable shaft may be incorporated advantageously into a steering system as an intermediate shaft into an area between a steering shaft and a rack-and-pinion mechanism.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: June 22, 2010
    Assignee: JTEKT Corporation
    Inventors: Fumiaki Kasahara, Satoshi Kakutani, Kazuto Minagawa
  • Patent number: 7741259
    Abstract: Environmentally safe and compatible fluids that are useful as lubricants, and especially as hydraulic fluids, in mobile machinery are formulated to be non-contaminating when accidentally contacted with surrounding vegetation, and removable from vegetation by simply washing the vegetation with tap water. The fluids of the invention are polyalkylene glycol-based and having an ethylene oxide to propylene oxide ratio of from about 68:32 to about 78:22.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: June 22, 2010
    Assignee: EnBio Industries, Inc.
    Inventor: Daniel M. da Costa
  • Publication number: 20100139273
    Abstract: The invention relates to a working fluid for a steam circuit process carried out in a device comprising a steam generator, an expander, a condenser, and a reservoir for the working fluid, comprising a working medium that evaporates by the addition of heat in a steam generator, performs mechanical work by expanding in the expander during the steam phase, and condenses in the condenser; an ionic fluid serving as an antifreeze component and having a melting point in the reservoir below the freezing point of the working medium, wherein the decomposition temperature of the ionic fluid is above the evaporating temperature of the working medium in the steam generator.
    Type: Application
    Filed: January 24, 2008
    Publication date: June 10, 2010
    Inventors: Christian Bausch, Jens Grieser, Jurgen Berger
  • Patent number: 7732391
    Abstract: A manual transmission fluid having a VI greater than 160 and a Brookfield viscosity at ?40° C. less than 30,000 cP. It comprises: 1) a base oil (made from a waxy feed) having less than 0.06 wt % aromatics, greater than 5 wt % total molecules with cycloparaffinic functionality, and a ratio of molecules with monocycloparaffinic functionality to molecules with multicycloparaffinic functionality greater than 20; and a manual transmission fluid additive package. In another embodiment, the manual transmission fluid comprises: 1) a base oil having a high VI and a kinematic viscosity at 100° C. greater than 5.5 cSt, 2) less than 0.01 wt % pour point depressant, and 3) a manual transmission fluid additive package. This invention is also directed to a process to make the manual transmission fluid, comprising the steps of hydroisomerization dewaxing, selecting base oil fractions having a high VI, and blending the fractions with an additive package.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: June 8, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: John Rosenbaum, Marc J. De Weerdt, Thomas Plaetinck, Nancy J. Bertrand
  • Patent number: 7732389
    Abstract: The invention relates to lubricating fluids and oil formulations which provide exceptionally low traction, a method of lowering traction coefficients in lubricating compositions, and to uses of such compositions.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: June 8, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: William T. Sullivan, Halou Oumar-Mahamat, Martin N. Webster, Ellen B. Brandes
  • Publication number: 20100132499
    Abstract: The invention provides a telescopic shaft for vehicle steering installed in a vehicle steering shaft. A male shaft and a female shaft are non-rotatably and slidably fitted to each other and an outer peripheral portion of the male shaft and an inner peripheral portion of the female shaft come in contact with each other to transmit a torque during rotation. A grease composition which has an apparent viscosity of 400 to 750 Pa·s (25° C.) at a shear rate of 10 sec?1 as defined in JIS K2220 is enclosed in a gap between the outer peripheral portion of the male shaft and the inner peripheral portion of the female shaft. This telescopic shaft for vehicle steering does not need a new process for the male and female shafts, which is a cause of increase of cost. In addition, improvement in durability, reduction of resistance and stick-slip resistance are achieved.
    Type: Application
    Filed: December 13, 2006
    Publication date: June 3, 2010
    Applicant: NSK LTD.
    Inventors: Shinya Nakatani, Atsushi Yokouchi, Hiroshi Sato, Kazunori Takahashi, Yoshinori Takahashi, Seiichi Moriyama
  • Publication number: 20100113311
    Abstract: A new method to determine by quantitative analysis the amount of dye present in dyed engine oils is provided. The method uses imaging techniques, such as spectrophotometry, and a combination of dilution and standard addition techniques to quantitatively determine the concentration of dye in the engine oil to ascertain whether dye concentrations in engine oil have decreased as compared with original specifications, and to quantify the amount of dye to be added to the dyed engine oil to bring dye concentrations to original concentrations.
    Type: Application
    Filed: April 28, 2009
    Publication date: May 6, 2010
    Inventors: Holly S. Eccleston, Mimi Nguyen-Vu, Philip H. Ratliff
  • Publication number: 20100105581
    Abstract: The problem to be solved by the present invention is to provide an ionic liquid-containing lubricating oil composition that has extremely low viscosity and does not evaporate during use. This problem is solved through the use of a lubricating oil composition that contains as a base oil an ionic liquid with a kinematic viscosity of 5-20 mm2/s at 40° C., and a polymerization inhibitor with a molecular weight of 200-600.
    Type: Application
    Filed: October 26, 2009
    Publication date: April 29, 2010
    Inventors: Takanori Shiraishi, Katsushi Hirata
  • Publication number: 20100104742
    Abstract: A neat lubricant blend for magnetic media improves lubricant processibility without negatively impacting media performance. The lubricant blend combines, in their neat states, a high bonding lubricant having a molecular weight of about 2000, and a low bonding lubricant with a molecular weight below 1000. The low molecular weight lubricant evaporates after lubrication, leaving only the high molecular weight lubricant behind. Media performance such as lubricant pickup is not adversely affected. Mixing the two types of lubricants in their neat states improves solubility in the less expensive solvents.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 29, 2010
    Applicant: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS BV
    Inventors: Xing-Cai Guo, Robert Waltman