The Phosphorus Is Bonded Indirectly To An Additional Diverse Metal Or To Carbonyl (e.g., Molybdenum-zinc Dialkyldithiophosphates, Etc.) Patents (Class 508/369)
  • Patent number: 9725669
    Abstract: Anti-wear and/or friction reducing formulations that include a mixture of at least one first ionic liquid and at least one ashless antiwear compound. The ashless antiwear compound can be a second ionic liquid or an ashless thiophosphate compound. The formulation desirably provides synergistic anti-wear and/or friction reducing properties. The first IL can be a monocationic ionic liquid or a dicationic ionic liquid. The second IL is a dicationic ionic liquid. The ashless thiophosphate is desirably a thiophosphate, such as a fluorothiophosphate (FTP), an alkylphosphorofluoridothiolate, or an alkylthioperoxydithiophosphate. Antiwear and/or friction reduction formulations comprising the above mixtures diluted up to 25% by weight in a base oil.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: August 8, 2017
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Pranesh Aswath, Xin Chen, Vibhu Sharma, Maria Amaya Igartua, Francesco Pagano, Wolfgang Binder, Parvin Zare, Nicole Doerr
  • Patent number: 9309478
    Abstract: The invention relates to a lubricating composition comprising (a) at least 0.05 wt % of a non-aromatic metal carboxylate, wherein the metal carboxylate is derived from a branched carboxylic acid, 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: Grant
    Filed: October 21, 2009
    Date of Patent: April 12, 2016
    Assignee: The Lubrizol Corporation
    Inventors: Stuart L. Bartley, Mark R. Baker
  • Patent number: 8969267
    Abstract: Suggested is a method for enhancing energy efficiency of engines by applying to said engines a lubricant composition containing (A) carboxylic esters derived from the reaction of mono-, di- and/or poly alcohols with mono- and/or dicarboxylic acids, together with an additive blend (B) comprising at least two different additives (a) and (b) together, whereby compound (a) is selected from dithiophosphates, and compound (b) is selected from alkylated phosphorothionates, on condition that the total amount of the additive blend (B) is below 0.1 wt %, calculated on the weight of the whole composition.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: March 3, 2015
    Assignee: Cognis IP Management GmbH
    Inventors: Ronny Rinklieb, Dirk Rettemeyer, Markus Scherer
  • 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
  • Patent number: 8802604
    Abstract: The present invention provides a lubricating oil composition in contact with a silver-containing material, which comprises: a lubricant base oil made of a mineral base oil and/or a synthetic base oil; (A) metallic detergent; (B) one or more species of alkenyl succinimide and/or boron-containing alkenyl succinimide; and (C) zinc dialkyl dithiophosphate, wherein the content of these components to the total mass of the lubricating oil composition are defined as, (A) component: 0.12-2.0 mass % as metal content; (B) component: 0-0.03 mass % as boron content, 0.005 mass % to less than 0.08 mass % as nitrogen content, and the mass ratio (B/N) between the boron content (B) and the nitrogen content (N) is 0-0.55; and (C) component: 0.005-0.10 mass % as phosphorous content. As a lubricating oil in contact with silver-containing material, the lubricating oil composition can inhibit sulfidation corrosion of silver while containing zinc dialkyl dithiophosphate.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: August 12, 2014
    Assignee: JX Nippon Oil & Energy Corporation
    Inventor: Kazuhiro Yagishita
  • Patent number: 8784642
    Abstract: A lubricating oil composition of SAE viscosity grade 0W20 which comprises a base oil and additive components comprising a nitrogen-containing ashless dispersant, an alkaline earth metal-containing detergent, a phosphorus-containing wear inhibitor, an oxidation inhibitor and a viscosity index improver and which shows a viscosity index of 200-240, a HTHS viscosity of not less than 2.9 mPa·s s at 150° C. and a Noack evaporation loss of not more than 13% favorably gives a high fuel economy and high wear inhibition to a four cycle gasoline engine of motorcycles and a diesel engine mounted on motor cars equipped with an exhaust gas post-processing apparatus.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: July 22, 2014
    Assignee: Chevron Japan Ltd.
    Inventors: Hiroki Andoh, Morikuni Nakazato
  • Patent number: 8778853
    Abstract: A functional fluid comprising a major amount of an oil of lubricating viscosity, and at least about 0.05 wt-% glycerol. A method of preparing a functional fluid comprising adding glycerol to a functional fluid, wherein the glycerol is not glycerol monooleate. A method of preparing an additive concentrate comprising adding glycerol to a diluent oil wherein the concentrate contains from about 1% to about 99% by weight of said diluent. A method of reducing wear comprising contacting a metal surface with a functional fluid comprising a major amount of an oil of lubricating viscosity and at least about 0.05 wt-% glycerol.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: July 15, 2014
    Assignee: Chevron Oronite Company LLC.
    Inventor: Yue-Rong Li
  • Patent number: 8747650
    Abstract: Provided are formulations, methods of making, and methods of using one or more Fischer-Tropsch Base Oils of the present invention in a low sulfur, low sulfated ash, and low phosphorus engine lubricant to enhance thermal stability of the lubricant as well as the high-temperature performance of an engine housing the lubricant.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: June 10, 2014
    Assignee: Chevron Oronite Technology B.V.
    Inventors: Jeroen Van Leeuwen, Peter Kleijwegt
  • Patent number: 8722597
    Abstract: Provided is a lubricating oil composition for an internal combustion engine, including as essential components the following component (A), component (B), and component (C), in which a phosphorus content of the composition is 50 ppm by mass to 1,000 ppm by mass: Component (A): a base oil; Component (B): a compound represented by the following general formula (1); and Component (C): a metal-containing antioxidant: where R1 to R8 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, Z represents a hydrocarbon group having 2 to 20 carbon atoms, and n represents a number of 1 to 10.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: May 13, 2014
    Assignee: Adeka Corporation
    Inventors: Yukio Tatsumi, Kenji Yamamoto
  • Patent number: 8703679
    Abstract: A functional fluid comprising a major amount of an oil of lubricating viscosity, and an oil soluble amount of glycerol carbonate or an oil soluble amount of a borated glycerol.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: April 22, 2014
    Inventors: Yue-Rong Li, Frank Plavac, Rawls Frazier
  • Patent number: 8518864
    Abstract: A grease composition for constant-velocity joints which is inexpensive and which and which has an improved anti-flaking property without using materials which have environmental burdens, and a constant-velocity joint enclosing this grease are provided. A grease composition for constant-velocity joints comprising: (a) a base oil, (b) a diurea thickener, (c) a zinc dialkyldithiophosphate, (d) a sulfurized molybdenum dialkyldithiocarbamate, (e) a zinc dialkyldithiocarbamate, and (f) a sulfur-nitrogen extreme pressure additive is provided.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: August 27, 2013
    Assignees: Kyodo Yushi Co., Ltd., NTN Corporation
    Inventors: Daigo Nagumo, Yuji Onuki, Shinya Kondo, Shin Tomogami, Shinichi Takabe
  • Publication number: 20130040867
    Abstract: A trunk piston engine lubricating oil composition is disclosed comprising (a) a major amount of a base stock containing at least 90% by weight saturated hydrocarbons; and (b) a base stock selected from the group consisting of (i) an ester base stock wherein the ester base stock is present in an amount greater than 10% by weight and no greater than about 45% by weight, based on the total weight of the lubricating oil composition, and (ii) an alkylated aromatic base stock.
    Type: Application
    Filed: October 15, 2012
    Publication date: February 14, 2013
    Applicant: Chevron Oronite Technology B.V.
    Inventor: Wilhelmus Petrus Antonie Van Houten
  • Publication number: 20130012418
    Abstract: Provided is a lubricating oil composition for an internal combustion engine, including as essential components the following component (A), component (B), and component (C), in which a phosphorus content of the composition is 50 ppm by mass to 1,000 ppm by mass: Component (A): a base oil; Component (B): a compound represented by the following general formula (1); and Component (C): a metal-containing antioxidant: where R1 to R8 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, Z represents a hydrocarbon group having 2 to 20 carbon atoms, and n represents a number of 1 to 10.
    Type: Application
    Filed: May 18, 2011
    Publication date: January 10, 2013
    Inventors: Yukio Tatsumi, Kenji Yamamoto
  • Publication number: 20130005622
    Abstract: An engine oil lubricant composition comprising a major amount of base oil and an effective amount of a zinc dialkyl dithio phosphate, a polymeric viscosity index improver and a mixture of alkaline earth metal detergents provides improved fuel efficiency while providing excellent wear in an engine.
    Type: Application
    Filed: June 26, 2012
    Publication date: January 3, 2013
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Kristen A. Lyon, Kevin John Kelly, William L. Maxwell, Douglas Edward Deckman
  • Patent number: 8334244
    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: Grant
    Filed: September 22, 2010
    Date of Patent: December 18, 2012
    Assignee: Bestline International Research, Inc.
    Inventor: Ronald J. Sloan
  • 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
  • Publication number: 20120165235
    Abstract: A functional fluid comprising a major amount of an oil of lubricating viscosity, and greater than about 0.05 wt-% glycerol. A method of preparing a functional fluid comprising adding glycerol to a functional fluid, wherein the glycerol is not glycerol monooleate. A method of preparing an additive concentrate comprising adding glycerol to a diluent oil wherein the concentrate contains from about 1% to about 99% by weight of said diluent. A method of reducing friction comprising contacting a metal surface with a functional fluid comprising a major amount of an oil of lubricating viscosity and greater than about 0.05 wt-% glycerol.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 28, 2012
    Applicant: Chevron Oronite Company LLC
    Inventors: Yue-Rong Li, Deane S. Walker, Patrick J. McDougall, Kenneth Nelson
  • Publication number: 20120165234
    Abstract: Formulations using tartaric compounds of the present invention in a low sulfur, low ash and low phosphorous lubricant lower wear, and friction and improves fuel economy.
    Type: Application
    Filed: March 1, 2012
    Publication date: June 28, 2012
    Applicant: The Lubrizol Corporation
    Inventors: Jody Kocsis, Jonathan S. Vilardo, Jason R. Brown, Daniel E. Barrer, Richard J. Vickerman, Patrick E. Mosier
  • Patent number: 8207099
    Abstract: A crankcase lubricant, an additive concentrate and a method for improving water tolerance of a lubricant. The lubricant includes a) a major amount of a base oil; b) an alkali or alkaline earth metal-containing detergent; c) a phosphorus-based wear preventative; and d) a surfactant agent other than (b). The lubricant has a weight ratio of alkali or alkaline earth metal content to phosphorus content, based on a total mass of lubricant, ranging from about 1.6 to about 5.0.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: June 26, 2012
    Assignee: Afton Chemical Corporation
    Inventor: John T. Loper
  • Publication number: 20120132166
    Abstract: A lubricating oil composition of SAE viscosity grade 0W20 which comprises a base oil and additive components comprising a nitrogen-containing ashless dispersant, an alkaline earth metal-containing detergent, a phosphorus-containing wear inhibitor, an oxidation inhibitor and a viscosity index improver and which shows a viscosity index of 200-240, a HTHS viscosity of not less than 2.9 mPa·s s at 150° C. and a Noack evaporation loss of not more than 13% favorably gives a high fuel economy and high wear inhibition to a four cycle gasoline engine of motorcycles and a diesel engine mounted on motor cars equipped with an exhaust gas post-processing apparatus.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 31, 2012
    Applicant: Chevron Japan Ltd.
    Inventors: Hiroki Andoh, Morikuni Nakazato
  • Publication number: 20120118259
    Abstract: A lubricating oil composition having a low sulfated ash content, a low P content, a low S content and a low Cl content and being favorably employable for lubricating a diesel engine operated using a hydrocarbon fuel oil having a low S content, comprises the following components a) to d) dissolved or dispersed in a base oil having a low S content: a) an ashless dispersant such as alkenyl- or alkylsuccinimide or its derivative, b) a calcium alkylsalicylate detergent having a low S content and containing an organic acid calcium salt, which is a mixture of an unsulfurized calcium alkylsalicylate detergent having a C14-C18 alkyl group and an unsulfurized calcium alkylsalicylate detergent having a C20-C28 alkyl group, c) a zinc phosphate anti-wear agent, and d) an oxidation inhibitor.
    Type: Application
    Filed: September 7, 2011
    Publication date: May 17, 2012
    Applicant: Chevron Japan, Ltd.
    Inventors: Yoshitaka Takeuchi, Toshimi Kawamura
  • Publication number: 20120118258
    Abstract: A lubricating oil composition having a low sulfated ash content, a low P content, a low S content and a low Cl content and being favorably employable for lubricating a diesel engine operated using a hydrocarbon fuel oil having a low S content, comprising the following components a) to d) dissolved or dispersed in a base oil having a low S content: a) an ashless dispersant such as alkenyl- or alkyl succinimide or its derivative, b) a calcium alkylsalicylate detergent having a low S content and an organic acid calcium salt, which is an unsulfurized calcium alkylsalicylate detergent having a C14-C18 alkyl group, c) a zinc phosphate anti-wear agent, and d) an oxidation inhibitor.
    Type: Application
    Filed: September 7, 2011
    Publication date: May 17, 2012
    Applicant: Chevron Japan, Ltd.
    Inventors: Yoshitaka Takeuchi, Toshimi Kawamura
  • 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: 8088720
    Abstract: The present invention is directed to method of making a green lubricant composition having improved wear protection and reduced phosphorus emissions.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: January 3, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Jacob J. Habeeb, Douglas E. Deckman, Brandon T. Weldon, William L. Maxwell
  • Patent number: 8084403
    Abstract: The embodiments described herein relate to particular formulations and methods that provide reduced engine deposits. The lubricant composition includes a base oil having a NOACK volatility of from about 5 to about 15 and a zinc dialkyl dithio phosphate composition. The zinc dialkyl dithio phosphate composition has at least about 65 mole percent of zinc dialkyl dithio phosphate compounds derived from all primary alcohols, wherein the zinc dialkyl dithio phosphate composition has greater than about 40 mole percent zinc dialkyl dithio phosphate compounds having alkoxy moieties derived from alcohols having four carbon atoms.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: December 27, 2011
    Assignee: Afton Chemical Corporation
    Inventors: William Y. Lam, Gregory H. Guinther
  • Patent number: 8080501
    Abstract: The present invention is directed to green lubricant compositions comprising a base oil and an effective amount of premixed additives that improve wear protection and reduce phosphorus emissions.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: December 20, 2011
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Jacob J. Habeeb, Douglas E. Deckman, Brandon T. Weldon, Steven P. Rucker, Michael E. Landis
  • Patent number: 8048834
    Abstract: A method and compositions for lubricating surfaces with lubricating oils exhibiting increased phosphorous retention. The lubricated surface includes a lubricant composition containing a base oil of lubricating viscosity, an amount of a phosphorus-containing compound and an amount of at least one hydrocarbon soluble titanium compound that is effective to provide an aged catalyst temperature that converts at least fifty percent of exhaust gas hydrocarbons, carbon monoxide, and NOx that is lower than an aged catalyst temperature that converts at least fifty percent of exhaust gas hydrocarbons, carbon monoxide, and NOx of the lubricant composition devoid of the hydrocarbon soluble titanium compound.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: November 1, 2011
    Assignee: Afton Chemical Corporation
    Inventors: Gregory H. Guinther, John T. Loper
  • Patent number: 7988884
    Abstract: A novel manufacturing process is described for producing hindered phenolic alkyl esters, which may be useful as antioxidants. This process simplifies catalyst neutralization and removal during the preparation of hindered phenolic esters. Compositions that comprise the hindered phenolic esters produced according to these methods are also described.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: August 2, 2011
    Assignee: Albemarle Corporation
    Inventors: Vincent J. Gatto, Hassan Y Elnagar, Chi Hung Cheng, J. Robert Adams
  • Patent number: 7989406
    Abstract: An additive to a fuel oil for a Diesel engine having a Diesel particulate filter (DPF), which comprises a molybdenum compound and having the function of improving the combustion property of a particulate matter (PM) trapped with DPF; a fuel oil comprising the additive; a lubricating oil composition for a Diesel engine having DPF, which has a sulfated ash content of 1.0% by weight or smaller, a sulfur content of 0.3% by weight or smaller and a molybdenum content of 100 ppm or greater; and DPF for removing PM in combustion gas discharged from a Diesel engine vehicle by trapping and burning PM, DPF comprising a filter supporting a molybdenum compound. The combustion property of PM trapped with the filter of DPF is improved, PM is burned at a low temperature with stability, the efficiency of removal of PM is improved and the life of DPF is increased.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: August 2, 2011
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Tadashi Katafuchi
  • Patent number: 7939478
    Abstract: The invention provides a method of lubricating a marine diesel engine, comprising supplying to said engine a marine diesel cylinder lubricant composition at a feed rate of 0.3 to less than 1.2 g/kW hr, wherein said lubricant composition has a ratio of /?(wt % overbased detergent)/?(wt % of boron from antiwear additives+wt % of phosphorus-containing antiwear additives) of greater than 12.5. The invention further provides a method capable of imparting improved cleanliness and decreased cylinder wear; and reduced deposits.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: May 10, 2011
    Assignee: The Lubrizol Corporation
    Inventors: Alexandra Mayhew, Stephen J. Cook
  • 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
  • Publication number: 20100331224
    Abstract: Provided herein are lubricating oil compositions comprising a major amount of a base oil, at least one oil-soluble molybdenum compound and a zinc dialkyldithiophosphate compound, wherein the molybdenum content derived from the molybdenum compound is at least 10 ppm based on the total weight of the lubricating oil composition and the phosphorus content derived from the zinc dialkyldithiophosphate compound is about 200 to 500 ppm based on the total weight of the lubricating oil composition. The lubricating oil composition can further comprise at least one additive. Methods of making and using the lubricating oil compositions are also described.
    Type: Application
    Filed: September 10, 2010
    Publication date: December 30, 2010
    Inventors: Alexander B. Boffa, Kenji Takeoka
  • Publication number: 20100292113
    Abstract: The embodiments described herein relate to particular formulations and methods that may provide improved fuel economy characteristics for an engine lubricant. The compositions and methods include a (a) a base oil; (b) a zinc dialkyldithiophosphate compound; and (c) a hydrocarbon soluble metal compound. The hydrocarbon soluble metal compound is devoid of phosphorus and sulfur atoms and the metal is selected from the group consisting essentially of selected from the group consisting essentially of cobalt, nickel, zinc, zirconium, manganese, vanadium, scandium, yttrium, tungsten, gold, platinum, and iron. A weight ratio of total metal in the lubricant composition from the zinc dialkyl-dithiophosphate compound and the hydrocarbon soluble metal compound to phosphorus in the lubricant composition ranges from greater than about 1.5 to 1 to about 15 to 1.
    Type: Application
    Filed: March 16, 2010
    Publication date: November 18, 2010
    Applicant: AFTON CHEMICAL CORPORATION
    Inventors: Jeffrey M. GUEVREMONT, Mark T. DEVLIN, Naresh C. MATHUR, Jason A. LAGONA
  • Publication number: 20100279902
    Abstract: The embodiments described herein relate to particular formulations and methods that provide reduced engine deposits. The lubricant composition includes a base oil having a NOACK volatility of from about 5 to about 15 and a zinc dialkyl dithio phosphate composition. The zinc dialkyl dithio phosphate composition has at least about 65 mole percent of zinc dialkyl dithio phosphate compounds derived from all primary alcohols, wherein the zinc dialkyl dithio phosphate composition has greater than about 40 mole percent zinc dialkyl dithio phosphate compounds having alkoxy moieties derived from alcohols having four carbon atoms.
    Type: Application
    Filed: May 1, 2009
    Publication date: November 4, 2010
    Applicant: Afton Chemical Corporation
    Inventors: William Y. Lam, Gregory H. Guinther
  • Publication number: 20100216675
    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: Application
    Filed: February 5, 2010
    Publication date: August 26, 2010
    Inventor: Jacob Joseph Habeeb
  • Publication number: 20100130391
    Abstract: A novel manufacturing process is described for producing hindered phenolic alkyl esters, which may be useful as antioxidants. This process simplifies catalyst neutralization and removal during the preparation of hindered phenolic esters. Compositions that comprise the hindered phenolic esters produced according to these methods are also described.
    Type: Application
    Filed: January 26, 2010
    Publication date: May 27, 2010
    Applicant: ALBEMARLE CORPORATION
    Inventors: Vincent J. Gatto, Hassan Y. Elnagar, Chi Hung Cheng, J. Robert Adams
  • Publication number: 20080125337
    Abstract: The embodiments described herein relate to particular formulations and methods that provide reduced exhaust catalyst deactivation and/or reduced oil consumption.
    Type: Application
    Filed: November 29, 2006
    Publication date: May 29, 2008
    Inventors: Gregory H. Guinther, William Y. Lam
  • Patent number: 7074745
    Abstract: A process and method for manufacturing an improved engine oil comprising mixing ferric fluoride with ZDDP to form an additive mixture, heating the additive mixture to at least 125° C. for at least 4 hours to produce a pre-reacted mixture, and adding the pre-reacted mixture to a fully formulated engine oil not containing ZDDP. Also disclosed is an engine oil prepared by a process comprising mixing catalyst with ZDDP to form an additive mixture, heating the additive mixture to about 60° C. to produce a pre-reacted additive mixture, and adding the pre-heated additive mixture to a fully formulated engine oil not containing ZDDP.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: July 11, 2006
    Assignee: Platinum Intellectual Property, L.P.
    Inventors: Harold Shaub, Pranesh B. Aswath, Md. Zahedul Huq
  • Patent number: 6894009
    Abstract: A grease composition for constant velocity joints, having a base oil and a urea-based thickener, which grease additionally contains, (A) molybdenum sulphide dialkyldithiocarbamate and (B) 5,5-dithiobis (1,3,4-thiadiazole-2-thiol); a method of lubricating a constant velocity joint including packing it with grease and a constant velocity joint packed with said grease.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: May 17, 2005
    Assignee: Shell Oil Company
    Inventors: Yasushi Kawamura, Kouichi Nakazawa, Noriaki Shinoda, Keiji Tanaka, Tetsuo Nimura, Kouji Saitou, Tomoyasu Wada
  • Patent number: 6852678
    Abstract: An aqueous lubricant is provided which by simple application onto metal surfaces forms lubricating films required for heavy working of metals, and which contains no oil. The aqueous lubricant is prepared by suspending or dispersing a metal chelate compound in water with a surfactant or the like. The metal chelate compound has a polydentate or multidentate chelate ligand, in which at least one of the coordinating atoms is sulfur, coordinated to the coordination site of at least one metal species selected from among zinc, manganese, iron, molybdenum, tin and antimony. When applied onto metal surfaces, the aqueous lubricant forms effective lubricating films on the metal surfaces. The lubricating films contain sulfur as coordinating atoms and therefore, extreme pressure produces sulfur radicals through decomposition by tribo-chemical reactions. The sulfur radicals are highly reactive and react rapidly with the metal surface to produce metal sulfides with a lubricating effect.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: February 8, 2005
    Assignees: MEC International Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Heijiro Ojima, Masahiko Takeuchi, Fumio Ikesue, Noritoshi Kaskimura, Fumio Kawahara, Mitsuru Tomono
  • Patent number: 6444624
    Abstract: An SAE OW-30 or 5W-30 or 5W-20 lubricant has a Noack volatility of less than 15, optionally an M-111 fuel economy of 1.5% or less, and a chlorine content of less than 100 ppm. The lubricant comprises a basestock containing from 0 to less than 10% Group I and/or Group II basestocks, a molybdenum additive providing not greater than 1000 ppm of molybdenum to the lubricant, a calcium detergent providing 10 or greater mmoles of surfactant per kilogram of lubricant, one or more other additives, and a viscosity modifier.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: September 3, 2002
    Inventors: Juliet V. Walker, Ian A. Bell
  • Patent number: 6423671
    Abstract: Organo molybdenum containing oils of lubricating viscosity having improved high temperature frictional properties are made using semi-packages of additives. The semi-packages contain: (A) a dispersant, a zinc salt, and a detergent and (B) an organo molybdenum compound. The packages are formed individually prior to mixing.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: July 23, 2002
    Assignee: The Lubrizol Corporation
    Inventor: Junsuke Haruna
  • Patent number: 6333297
    Abstract: A constant-velocity joint for a propeller shaft is provided which can be used with good durability without adding any organic lead compound, which is high in the effect of suppressing temperature rise of grease during high-speed rotation, and which can prevent deterioration of the grease.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: December 25, 2001
    Assignee: NTN Corporation
    Inventor: Shinichi Takabe
  • Publication number: 20010016563
    Abstract: A constant-velocity joint for a propeller shaft is provided which can be used with good durability without adding any organic lead compound, which is high in the effect of suppressing temperature rise of grease during high-speed rotation, and which can prevent deterioration of the grease.
    Type: Application
    Filed: December 28, 2000
    Publication date: August 23, 2001
    Applicant: NTN CORPORATION
    Inventor: Shinichi Takabe
  • Patent number: 6153564
    Abstract: A lubricating oil composition is provided comprising a major amount of an oil of lubricating viscosity and a minor amount of, as an additive, at least one compound comprising a metal core and bonded thereto one or more ligands capable of rendering the compound oil-soluble or oil-dispersible, at least one ligand having at least two hydrocarbyl groups of which one has 1 to 7 carbon atoms and the other or another has more carbon atoms.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: November 28, 2000
    Assignee: Infineum USA L.P.
    Inventors: Velautha-Cumaran Arunasalam, Ian A. W. Bell, John A. Cleverley, Ronald P. Wangner
  • Patent number: 5837657
    Abstract: The present invention is directed to a method for improving the performance of a sooted diesel oil and controlling soot induced viscosity increase by adding to a major amount of a diesel oil a minor amount of a composition comprising at least one compound having the formula Mo.sub.3 S.sub.k L.sub.n Q.sub.z and mixtures thereof wherein the L are independently selected ligands having organo groups with a sufficient number of carbon atoms to render the compound soluble or dispersible in the oil, n is from 1 to 4, k varies from 4 through 10, Q is selected from the group of neutral electron donating compounds such as water, amines, alcohols, phosphines, and ethers, and z ranges from 0 to 5 and includes nonstoichiometric values.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: November 17, 1998
    Inventors: Howard L. Fang, Jonathan M. McConnachie, Edward Ira Stiefel
  • Patent number: 5763370
    Abstract: Pre-blended combinations and reaction products of at least one metallic dithiocarbamate and at least one metallic dithiophosphate provide the synergism of antiwear properties with friction-reducing properties for lubricants and greases.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: June 9, 1998
    Assignee: Mobil Oil Corporation
    Inventors: John Phillips Doner, Liehpao Oscar Farng
  • Patent number: 5627294
    Abstract: An alcohol and/or a carboxylic acid or carboxylate is used to reduce the proportion of sediment obtained in the manufacture of a metal or ammonium dihydrocarbyl dithiophosphate, for example, a zinc dihydrocarbyl dithiophosphate (ZDDP) for use as an antiwear agent/antioxidant in crankcase lubricating oils.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: May 6, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventors: David R. Adams, Patrick F. Ginnelly