With Organic Sulfur, Phosphorus, Or Nitrogen Compound Patents (Class 508/128)
  • Patent number: 11124731
    Abstract: The present invention provides a lubricant composition suitable for reducing friction between sliding members such as those within a pump for circulating a heat medium of a heat pump device, and a lubricating system using the composition as a heat medium. A lubricant composition 10 of the present invention comprises: an antifreeze liquid 11 containing ethylene glycol; and 0.01 mass % or less of nanodiamond particles 12. The nanodiamond particles 12 are preferably detonation nanodiamond particles. The lubricant composition 10 is preferably a liquid composition for a heat pump. In addition, the lubricating system of the present invention uses the lubricant composition 10 as a heat medium.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: September 21, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Norihiro Kimoto, Tomohiro Goto
  • Patent number: 11091719
    Abstract: The present invention provides a lubricant composition suitable for reducing friction between sliding members such as those within a pump for circulating a heat medium of a heat pump device, and a lubricating system using the composition as a heat medium. A lubricant composition 10 of the present invention comprises: an antifreeze liquid 11 containing ethylene glycol; and 0.01 mass % or less of nanodiamond particles 12. The nanodiamond particles 12 are preferably detonation nanodiamond particles. The lubricant composition 10 is preferably a liquid composition for a heat pump. In addition, the lubricating system of the present invention uses the lubricant composition 10 as a heat medium.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: August 17, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Norihiro Kimoto, Tomohiro Goto
  • Patent number: 10487278
    Abstract: The present invention generally relates to methods and compounds for reducing paraffin or wax deposition in crude oil during processing, storage, or transportation. More specifically, the method comprises contacting the crude oil with a composition in an amount effective to reduce paraffin or was deposition.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: November 26, 2019
    Assignee: Ecolab USA Inc.
    Inventor: Kim R. Solomon
  • Patent number: 10093880
    Abstract: This disclosure relates to a process for extracting a perfluoropolyether. The process involves: (a) contacting a solvent comprising a liquid or supercritical carbon dioxide with a lubricating grease comprising a thickener and the perfluoropolyether in an extraction zone to form an extraction solution comprising an extracted perfluoropolyether; and (b) recovering the extracted perfluoropolyether from the extraction solution; wherein the recovered extracted perfluoropolyether comprises no more than about 2 wt % of the thickener.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: October 9, 2018
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Keith W. Hutchenson, Sharon Ann Libert, Jon Lee Howell, Xian Liang
  • Patent number: 10087393
    Abstract: This disclosure relates to a process for extracting a perfluoropolyether. The process involves: (a) contacting a solvent comprising a liquid or supercritical carbon dioxide with a lubricating grease comprising a thickener, an extraction aid material, and the perfluoropolyether in an extraction zone to form an extraction solution comprising an extracted perfluoropolyether; and (b) recovering the extracted perfluoropolyether from the extraction solution; wherein the recovered extracted perfluoropolyether comprises no more than about 2 wt % of the thickener.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: October 2, 2018
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Keith W Hutchenson, Sharon Ann Libert, Jon Lee Howell, Xian Liang, Val Krukonis, Hans Schonemann
  • Patent number: 8951942
    Abstract: A method for the preparation of carbon nanotube modified fluids such, that the dispersion of nanotubes in such fluids, exampled by those which are oil based is enhanced through the combined use of mechanical, sonic and ultrasonic devices.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: February 10, 2015
    Inventors: Martin Pick, Krzysztof Kazimiers Koziol, Alan Hardwick Windle
  • Publication number: 20140329092
    Abstract: Heat-transfer fluids and lubricating fluids comprising deaggregated diamond nanoparticles are described herein. Also described are composites comprising deaggregated diamond nanoparticles, and methods of making such composites. Method of using deaggregated diamond nanoparticles, for example, to improve the properties of materials such as thermal conductivity and lubricity are also disclosed.
    Type: Application
    Filed: April 8, 2014
    Publication date: November 6, 2014
    Applicant: Vanderbilt University
    Inventors: Blake T. Branson, Charles M. Lukehart, Jim L. Davidson
  • Publication number: 20140274831
    Abstract: A gear oil composition is provided. The composition comprises a major amount of base oil comprising a mixture of a mineral base oil and polybutene; and 0.1 to 0.5 wt % of carbon black, based on the total weight of the gear oil composition. Such compositions can provide improved viscosity stability.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventor: Etho Satish Lalla
  • Publication number: 20140162913
    Abstract: Disclosed are corrosion-inhibiting lubricant compositions and methods of making and using the compositions. The lubricant compositions contain petroleum based components, corrosion-inhibiting additives and a cationic surfactant. In some embodiments, the lubricant compositions also contain nano diamonds. Under standard salt fog tests, compositions exhibited 120 or 168 hours to failure, or 0-20% rust at 192 hours. Under standard wear preventative characteristics tests, compositions exhibited as low as 0.55 mm wear. Also disclosed are a device and method for aerosol delivery of a corrosion-inhibiting lubricant.
    Type: Application
    Filed: July 25, 2012
    Publication date: June 12, 2014
    Inventor: David McCreery
  • Publication number: 20140106995
    Abstract: Disclosed is a surface-treating agent for oil seal lip portion, comprising a lubricant filler and an adduct compound consisting of an adduct of toluene diisocyanate and trimethylolpropane, the surface-treating agent being applied to the surface of vulcanized rubber forming a lip portion of an oil seal comprising the lip portion and a metal ring. The application of the surface-treating agent of the present invention to the sliding surface of a seal lip portion of an oil seal effectively lengthens the service life of the oil seal, when used in a sliding part or a moving part, and leads to energy saving of equipment that uses the oil seal.
    Type: Application
    Filed: June 14, 2012
    Publication date: April 17, 2014
    Applicant: NOK Corporation
    Inventor: Kenichi Kunieda
  • Patent number: 8663495
    Abstract: According to some embodiments, the present provides a heat transfer medium that includes, but is not limited to a base fluid, a plurality of single-walled carbon nanotubes, and a gelling formulation formed of an amine surfactant, an intercalating agent, and an oxygen-bearing solvent. The heat transfer medium is adapted for improved thermal conductivity with respect to the base fluid.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: March 4, 2014
    Assignee: William Marsh Rice University
    Inventors: Bertha Catalina Rostro, Enrique V. Barrera
  • Publication number: 20140038862
    Abstract: Provided are a lubricating engine oil and a method of improving wear protection in an engine lubricated with such lubricating oil. The method includes using as the lubricating oil a formulated oil comprising a lubricating oil base stock as a major component, an antiwear additive as a first minor component, and carbon nanoplatelets as a second minor component. The carbon nanoplatelets are dispersed in said lubricating oil base stock. Wear protection is improved as compared to wear protection achieved using a lubricating oil not containing carbon nanoplatelets as a second minor component. A synergy exists between carbon nanoplatelets and other major components of lubricants, especially with zinc dialkyldithiophosphate (ZDDP) or other phosphate antiwear additives, that helps to form a nano-composite wear resistant and low friction tribofilm both on ferrous and non-ferrous surfaces (e.g., carbon coatings, ceramic coatings, polymeric coatings, and the like) of engines/machines.
    Type: Application
    Filed: July 22, 2013
    Publication date: February 6, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Tabassumul Haque, Martin N. Webster, Andy Haishung Tsou
  • Publication number: 20140005085
    Abstract: Embodiments of the present invention may include a macro-composition with a special structure. The structure includes a layered macro-composition made of a nanoparticle as an inner nucleus, an intermediate layer around the nucleus, and an outer layer intercalated with the nucleus or encapsulating the nucleus and the intermediate layer. A plurality of the layered macro-compositions is bonded together by bonds, so that each layered macro-composition is bonded to at least one other such layered macro-composition. Embodiments include a macro-composition made of three 3-layered macro-compositions joined in a chain by two bonds. These macro-composition assemblies may take the shape of layered macro-compositions bonded together in chains, or forming other shapes, such as rings. The layered macro-composition may be no more than about 100 nanometers in size, for example. The bonds of the complex macro-composition may have an average length of no more than about 100 nanometers, for example.
    Type: Application
    Filed: May 31, 2013
    Publication date: January 2, 2014
    Applicant: NanoMech, Inc.
    Inventor: Ajay P. Malshe
  • Patent number: 8598098
    Abstract: A lubricant composition applicable to a sliding section or sliding member of an automotive internal combustion engine or power transmission apparatus to significantly lower a friction coefficient. The lubricant composition contains a base oil for a lubricating oil, an oxygen-containing organic compound, a diamond nano-particle and a dispersant for the diamond nano-particle.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: December 3, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Akira Nakagawa, Yutaka Mabuchi
  • Patent number: 8575079
    Abstract: A lube oil composition is provided. The lube oil composition includes a base oil and a carbon nanocapsule grafting with an alkyl group dispersed in the base oil, wherein the carbon nanocapsule is hollow or filled with metal, metal alloy, metal oxide, metal carbide, metal sulfide, metal nitride or metal boride.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: November 5, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Gan-Lin Hwang, Ting-Yao Su, Woan-Shiow Tzeng, Hsin-Yi Wu
  • Publication number: 20130267447
    Abstract: A grease composition includes: at least one mineral-based, synthetic-based, or natural-based oil, a thickener predominantly consisting of at least one simple or complex aluminium soap; at least one molybdenum dithiocarbamate; and graphite. The grease can be used for the lubrication of open systems.
    Type: Application
    Filed: December 12, 2011
    Publication date: October 10, 2013
    Applicant: TOTAL RAFFINAGE MARKETING
    Inventor: Franck Bardin
  • Patent number: 8513170
    Abstract: A method for producing a solid lubricant includes steps of preparing and coating. A phosphate aqueous solution prepared by the step of preparing is an aqueous solution containing at least one of aluminum dihydrogen phosphate and magnesium dihydrogen phosphate in an amount of 0.5 to 10% by mass. A graphite material is coated with a phosphate using the phosphate aqueous solution. The graphite material is used at a ratio of 40 to 50 parts by mass based on 100 parts by mass of the aqueous solution.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: August 20, 2013
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventors: Masanori Kato, Hiroshi Idei, Akinori Hashimoto
  • Patent number: 8455407
    Abstract: The invention relates to the use of ionic liquids for production of water-resistant lubricating grease compositions, which are used in a temperature range from at least 30° C. to at least 180° C. and have good anticorrosion properties.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: June 4, 2013
    Assignee: Kluber Lubrication Munchen KG
    Inventors: Martin Schmidt-Amelunxen, Dieter Sohn, Stefan Grundei, Andrea Höpke
  • Patent number: 8435931
    Abstract: Lubricating oil of reduced friction comprise lubricating oil base stock and dissolved therein carbon nanomaterials functionalized on their surface with ester or amide functionality and made using a technique involving multiple space apart in time or dropwise additions of reactants to the carbon nanomaterials.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: May 7, 2013
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Jacob Joseph Habeeb, Caliann N. Bogovic
  • Patent number: 8283296
    Abstract: A substantially lead-free lubricant for use in hot forging of metals, especially forging of aluminum and aluminum alloy components. The lubricant comprises one or more oils, graphite, and one or more phosphorus-based additives. Additional additives, such as metallic lubricants and dispersants may also be included. The lubricant does not burn when subjected to temperatures in excess of 300° C.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: October 9, 2012
    Assignee: Henkel AG & Co., KGaA
    Inventors: Laurent Hugues, Harold Gankema, Geert Heideman, Douwe Marten Kok, Gerko Odink
  • Publication number: 20120251521
    Abstract: The present invention is a solution or colloid of fullerene, SWNTs, or graphene in cyclic terpenes, lactones, terpene-alcohol, fatty-acid alcohols, and lactones following ultrasonication and ultracentrifugation processing, for oil-energy, biological, electrical-thermal applications. The compositions are useful as fuel/oil/grease/gels (synthetic included), oil/fuel/additives/propellants, identification dyes, and heat-transfer fluids. Other functions are phase-change fluids for solar energy power plants, antifreeze, electronic dyes, electrolytic fluid/solvent, electrically-thermally conductive material for electrochemical, dielectric, filler/adhesive for semiconductor, eletro-optical, and liquid crystal substrates/coatings for touch sensitive transmissive or reflective displays. When combined with gelatin the formulations can function as dichroic-optical coatings for thin-films/waveguides/holograms.
    Type: Application
    Filed: April 2, 2011
    Publication date: October 4, 2012
    Inventors: Bertha Rostro, Mehdie Kohanloo
  • Publication number: 20110252825
    Abstract: The present invention provides a refrigerator oil composition which satisfies both sludge dispersibility and prevention of wear and seizing of sliding parts made of aluminum and/or iron, and a compressor and a refrigeration apparatus using the refrigerator oil composition. The refrigerator oil composition is characterized by comprising a base oil which is at least one member selected from mineral oils and synthetic oils, and at least one polyamide compound having two or more amide groups in the molecule and being present in an amount of 0.01 to 5% by mass based on the total amount of the refrigerator oil composition.
    Type: Application
    Filed: June 29, 2011
    Publication date: October 20, 2011
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventor: Masato KANEKO
  • Publication number: 20110224113
    Abstract: A method for the preparation of carbon nanotube modified fluids such, that the dispersion of nanotubes in such fluids, exampled by those which are oil based is enhanced through the combined use of mechanical, sonic and ultrasonic devices.
    Type: Application
    Filed: June 19, 2009
    Publication date: September 15, 2011
    Inventors: Martin Pick, Krzysztof Kazimiers Koziol, Alan Hardwick Windle
  • Publication number: 20110092399
    Abstract: The invention relates to the use of ionic liquids for production of water-resistant lubricating grease compositions, which are used in a temperature range from at least 30° C. to at least 180° C. and have good anticorrosion properties.
    Type: Application
    Filed: March 19, 2009
    Publication date: April 21, 2011
    Inventors: Martin Schmidt-Amelunxen, Dieter Sohn, Stefan Grundei, Andrea Höpke
  • Publication number: 20110059301
    Abstract: The invention relates to a wiping rubber for wiper blades in windshield wipers, comprising a profile body formed of an elastomer or rubber material, at least partially having a surface coating. The surface coating (22) comprises carbon fibers (24).
    Type: Application
    Filed: April 1, 2009
    Publication date: March 10, 2011
    Applicant: ROBERT BOSCH GMBH
    Inventors: Reiner Lay, Valerie Carlier
  • Publication number: 20100240557
    Abstract: A perfluoropolyether oil composition, which comprises a perfluoro-polyether base oil, preferably a thickener-containing perfluoropolyether base oil, and a fluorine-containing di- or mono-amide-based compound having a perfluoropolyether group, where 0.01 to 50% by weight of the amide-based compound, based on total weight of the base oil and the amide-based compound, is contained when the perfluoropolyether oil composition is used as a lubricating oil composition, particularly grease, and 0.01 to 90% by weight thereof is contained, when the perfluoropolyether oil composition is used as an electrode-coating agent for a cell. The perfluoropolyether oil composition shows a metal surface protective action against corrosive gases such as sulfide gases, etc. without deteriorating the abrasion resistance, and also shows a distinguished high temperature durability even in the presence of graphite or molybdenum disulfide.
    Type: Application
    Filed: March 25, 2010
    Publication date: September 23, 2010
    Applicant: NOK KLUBER CO., LTD.
    Inventors: Yuji WATANABE, Yasumichi KIDO, You DOI, Miyuki HASHIDA, Toshio NITTA, Tatsuya HASHIMOTO, Akira OTANI, Jiro YURIMOTO
  • Publication number: 20100022422
    Abstract: A process for producing a nanographite dispersion in a fluid wherein the thermal conductivity of the dispersion is enhanced from the base fluid by more than 10% for a 1% graphite dispersion. A high purity graphite with high crystallinity and reduced surface damage and oxidation is selected as the starting material. The starting material is subjected to a process of wet media milling in the presence of dispersant and solvent fluid. The mill temperature is controlled to control and reduce surface damage to yield a nanographite with flake shape and controlled aspect ratio until a particle size average of 300 nm diameter and 50 nm is obtained. The process recycles a portion of the milled material to increase the ratio of small particle distribution to large particles in an intermediate product with small and large particle bi-modal distribution. The large particle distribution is removed by a separation process such as centrifugation or filtration.
    Type: Application
    Filed: May 15, 2007
    Publication date: January 28, 2010
    Inventors: Gefei Wu, Zhiqiang Zhang, Frances E. Lockwood, Stephanie M. McCoy, Thomas R. Smith
  • Publication number: 20090305052
    Abstract: The invention relates to an aqueous graphite dispersion including graphite particles dispersed in water along with stabilizers acting as dispersants, and additives. The graphite particles are at least partially spherical.
    Type: Application
    Filed: September 8, 2006
    Publication date: December 10, 2009
    Applicant: GRAPHIT KROPFMUHL AG
    Inventor: Werner Handl
  • Patent number: 7624990
    Abstract: A sealant is provided that possesses many or all of the characteristics of conventional thread sealants, and allows application with improved smoothness and uniformity of application. Sealants in accordance with the invention utilize engineered fibers such as melamines like Basofill and polyaramids such as Kevlar in its composition. Engineered fibers offer consistency and uniformity that other previously used sealants lack. Engineered fibers can improve the gap filling characteristics of the sealant, as well as the resistance of the sealant to chemicals and high pressures. Engineered fibers tend to have very high strength and low density.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: December 1, 2009
    Assignee: Hercules Chemical Company Inc.
    Inventors: Fred Richard Scholer, John Wrobleski
  • Publication number: 20080248979
    Abstract: A lubricant composition applicable to a sliding section or sliding member of an automotive internal combustion engine or power transmission apparatus to significantly lower a friction coefficient. The lubricant composition contains a base oil for a lubricating oil, an oxygen-containing organic compound, a diamond nano-particle and a dispersant for the diamond nano-particle.
    Type: Application
    Filed: January 24, 2008
    Publication date: October 9, 2008
    Inventors: Akira NAKAGAWA, Yutaka Mabuchi
  • Publication number: 20080090740
    Abstract: A substantially lead-free lubricant for use in hot forging of metals, especially forging of aluminum and aluminum alloy components. The lubricant comprises one or more oils, graphite, and one or more phosphorus-based additives. Additional additives, such as metallic lubricants and dispersants may also be included. The lubricant does not burn when subjected to temperatures in excess of 300° C.
    Type: Application
    Filed: October 11, 2006
    Publication date: April 17, 2008
    Inventors: Laurent Hugues, Harold Gankema, Geert Heideman, Douwe Marten Kok, Gerko Odink
  • Patent number: 7294608
    Abstract: The present invention discloses the use of calcium sulfonate based greases compounds for use in application where the compounds are continuously, periodically or intermittently exposed to fluids that tend to contamination, erode, ablate or otherwise remove or interfere with the compounds ability to protect contact surfaces such as those present in threaded connections, and, especially in threaded connections associated with oilfield applications. The present invention also discloses methods for making and using such greases and compounds in application where the compounds are continuously, periodically or intermittently exposed to fluids that tend to contamination, erode, ablate or otherwise remove or interfere with the compounds ability to protect contact surfaces.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: November 13, 2007
    Assignee: Jet-Lube, Inc.
    Inventors: Donald Oldiges, Herschel McDonald, Tom Blake
  • Patent number: 7105472
    Abstract: The present invention relates to a coating solution to be applied on the surface of metals or metal alloys, a process for cold forming of metals and metal alloys using said coating solution, and a coated blank made of a metal or a metal alloy.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: September 12, 2006
    Inventor: Walter Zepf
  • Patent number: 7014694
    Abstract: An oil-based corrosion inhibitor composition for use in lubricating and/or hydraulic oils includes an oil-soluble sulfonate salt, an imidazoline salt of a fatty acid or a poly acid, and a polymerized ester, with the corrosion inhibitor composition being diluted with a polyalphaolefin to a suitable viscosity for subsequent use as an additive to such oils. In preferred embodiments, the corrosion inhibiting additive composition is mixed with the lubricating and/or hydraulic oils at a concentration of between about 2–5% by weight of the combination.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: March 21, 2006
    Assignee: Cortec Corporation
    Inventors: Boris A. Miksic, Alla Furman, Margarita Kharshan, Lee Boutelle
  • Patent number: 6734147
    Abstract: A process is disclosed for manufacturing a lubricant composition comprising combining a superabsorbent polymer with a material for decreasing friction between moving surfaces. The superabsorbent polymer absorbs from about 25 to greater than 100 times its weight in water and may comprise a polymer of acrylic acid, an acrylic ester, acrylonitrile or acrylamide, including co-polymers thereof or starch graft co-polymers thereof or mixtures thereof. A product produced by the process includes the material for decreasing friction comprising a petroleum lubricant containing an additive, water containing an additive, synthetic lubricant, grease, solid lubricant or metal working lubricant, wherein the synthetic lubricant, grease, solid lubricant or metal working lubricant optionally contain an additive. A process comprising controlling the delivery of a lubricant to at least one of two moving surfaces in order to decrease friction between said moving surfaces, is also disclosed.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: May 11, 2004
    Assignee: LCC County Mosquito Control
    Inventor: Richard Levy
  • Publication number: 20030216265
    Abstract: The present invention relates to a coating solution to be applied on the surface of metals or metal alloys, a process for cold forming of metals and metal alloys using said coating solution, and a coated blank made of a metal or a metal alloy.
    Type: Application
    Filed: April 4, 2003
    Publication date: November 20, 2003
    Inventor: Walter Zepf
  • Publication number: 20030158047
    Abstract: This invention is to provide a conductive grease which is less to decrease conductivity as a time passes. The conductive grease comprises abase oil, a thickener, a conductive solid powder, and at least one kind of a wear inhibitor, an extreme pressure agent and an oiliness agent, wherein an amount of the conductive solid powder added is 0.1 to 10 wt %, and an amount of the at least one kind of a wear inhibitor, an extreme pressure agent and an oiliness agent added is 0.1 to 10 wt %. Further, the conductive grease comprises the base oil and at least one of conductive additives, and the conductive additives are fibrous carbon, metallic particle, metallic compound particle and carbon nano-tube. The conductive grease to be packed into the rolling bearing comprises conductive fine particles such as carbon black and has an oil separation degree of 2% or lower.
    Type: Application
    Filed: February 27, 2003
    Publication date: August 21, 2003
    Applicant: NSK LTD.
    Inventors: Katsuaki Denpo, Atsushi Yokouchi, Koichi Hachiya, Michiharu Naka, Tooru Shouda, Hideki Koizumi
  • Patent number: 6589918
    Abstract: This invention is to provide a conductive grease which is less to decrease conductivity as a time passes. The conductive grease comprises abase oil, a thickener, a conductive solid powder, and at least one kind of a wear inhibitor, an extreme pressure agent and an oiliness agent, wherein an amount of the conductive solid powder added is 0.1 to 10 wt %, and an amount of the at least one kind of a wear inhibitor, an extreme pressure agent and an oiliness agent added is 0.1 to 10 wt %. Further, the conductive grease comprises the base oil and at least one of conductive additives, and the conductive additives are fibrous carbon, metallic particle, metallic compound particle and carbon nano-tube. The conductive grease to be packed into the rolling bearing comprises conductive fine particles such as carbon black and has an oil separation degree of 2% or lower.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: July 8, 2003
    Assignee: NSK Ltd.
    Inventors: Katsuaki Denpo, Atsushi Yokouchi, Koichi Hachiya, Michiharu Naka, Tooru Shouda, Hideki Koizumi
  • Publication number: 20020022580
    Abstract: A powdery mold-releasing lubricant according to the present invention uses a powdery mixture of a powdery organic material, which is evaporated or decomposed by heating to generate a gas, and a powdery inorganic material. A gas-solid mixed layer formed with the gas generated from the powdery mixture and the powdery inorganic material is used as a heat-insulating boundary layer. The powdery mold-releasing lubricant is inexpensive and has a superior mold lubricity.
    Type: Application
    Filed: June 12, 2001
    Publication date: February 21, 2002
    Inventors: Hideharu Fukunaga, Makoto Yoshida, Takami Sawai
  • Publication number: 20020019319
    Abstract: This invention is to provide a conductive grease which is less to decrease conductivity as a time passes. The conductive grease comprises abase oil, a thickener, a conductive solid powder, and at least one kind of a wear inhibitor, an extreme pressure agent and an oiliness agent, wherein an amount of the conductive solid powder added is 0.1 to 10 wt %, and an amount of the at least one kind of a wear inhibitor, an extreme pressure agent and an oiliness agent added is 0.1 to 10 wt %. Further, the conductive grease comprises the base oil and at least one of conductive additives, and the conductive additives are fibrous carbon, metallic particle, metallic compound particle and carbon nano-tube. The conductive grease to be packed into the rolling bearing comprises conductive fine particles such as carbon black and has an oil separation degree of 2% or lower.
    Type: Application
    Filed: June 21, 2001
    Publication date: February 14, 2002
    Applicant: NSK LTD.
    Inventors: Katsuaki Denpo, Atsushi Yokouchi, Koichi Hachiya, Michiharu Naka, Tooru Shouda, Hideki Koizumi
  • Patent number: 6335309
    Abstract: Die release lubricant is made from powder solid lubricant, adhesion enhancer made of organic or inorganic compound and volatile solvent. Before melted metal is injected into a die for casting, the die release lubricant is sprayed to an inside surface of the die. The die release lubricant is in a liquid state and is uniformly applied to the inside surface of the die. As a result, application efficiency of the die release lubricant is improved while an amount of thermal decomposition gas generated during casting is reduced.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: January 1, 2002
    Assignees: Denso Corporation, Nippon Graphite Industries Co., Ltd.
    Inventors: Hiromi Takagi, Tomoyuki Hatano, Tadao Okura
  • Patent number: 6255260
    Abstract: A metal forming lubricant suitable for extreme condition use is formulated to contain one or more differential solid lubricants composed of a high melt temperature, substantially halogen-free thermoplastic in addition to conventional lubricants such as organic phosphate esters and natural and synthetic polymer waxes. The lubricants offer superior performance while resisting the tendency to foul metal working dies with gummy deposits.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: July 3, 2001
    Inventor: David J. Stork
  • Patent number: 5776866
    Abstract: A parting agent capable of being applied to a die with split die members closed, and preventing the production of defective castings and the occurrence of heat shock as well as the precipitation of a solid lubricant. The parting agent is composed of a mixture of a parting component, a dispersing component for dispersing the paritng component through water, a surface active agent as a foaming agent, and water, and is foamed into a foamy state. The foamy parting agent can be applied to the die with the split die members closed. This overcomes problems caused by the scattering of the parting agent due to spraying. In addition, since the parting component is retained with a film defining foam, the separation and precipitation thereof can be prevented.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: July 7, 1998
    Assignees: Toyota Jidosha Kabushiki Kaisha, Hitachi Powdered Metals Co., Ltd.
    Inventors: Mithuhiro Karaki, Mikiya Nozaki, Masato Hakoiwa, Toshiaki Midorikawa
  • Patent number: 5547594
    Abstract: This invention relates to lubricants for polyethylene snow sliders which comprise fluorinated disulfides of the formula[R.sub.f (CH.sub.2).sub.m S].sub.2having a melting point of at least 25.degree. C. at most 60.degree. C., a fluorine content of at least 61% and at most 68% and wherein R.sub.f is independently a straight or branched perfluoroalkyl group.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: August 20, 1996
    Inventor: Athanasios Karydas