With Organic Oxygen Or Halogen Compound Patents (Class 508/130)
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Patent number: 12031102Abstract: A lubricant that enables to improve control stability of an automobile or the like having a vehicle body charged by driving. A lubricant for improving control stability of an automobile includes a base oil and an additive containing a carbon black. A kit for improving control stability of an automobile includes a discharging member including a protrusion that performs a self-discharging by air-ionizing and the lubricant. A method also improves control stability of an automobile.Type: GrantFiled: January 21, 2020Date of Patent: July 9, 2024Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KYODO YUSHI CO., LTD.Inventors: Junichi Sudo, Hiroyuki Arai, Youji Kanehara, Koushi Yamada, Ko Tanimura, Tomonobu Komoriya
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Patent number: 11542453Abstract: The present invention addresses a problem of providing a grease composition that uses hydrophilic nanofibers but still has excellent water resistance and does not readily experience oil separation. The grease composition contains a base oil, hydrophilic nanofibers having a thickness (d) of 1 to 500 nm, and an organic bentonite.Type: GrantFiled: March 26, 2019Date of Patent: January 3, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Yusuke Nakanishi, Hiromu Kumagai
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Patent number: 11485929Abstract: A lubricant for the hot forming of metals, with respect to the solid constituents, contains at least the following constituents: 55 to 85 wt % of a solid lubricating agent comprising a mixture of talc and a potassium mica, wherein the ratio of talc to potassium mica in the solid lubricating agent is 2.0 to 5.0, 10 to 30 wt % of an adhesive agent selected from a polyvinyl acetate, sodium water glass and dextrin or a mixture of same, 2 to 10 wt % of a thickener selected from hydroxy cellulose, hydroxyethyl cellulose, hydroxyproply cellulose, carboxymethyl cellulose, methyl cellulose, ethyl cellulose, methylethyl cellulose, hydroxyethylmethyl cellulose, hydroxypropylmethyl cellulose, ethylhydroxymethyl cellulose, carboxymethylhydroxy cellulose, dextrin, starch, organically modified bentonite, smectite and xanthan gum, 0 to 10 wt % of further auxiliary agents, and not more than 10 wt % of graphite.Type: GrantFiled: February 21, 2020Date of Patent: November 1, 2022Assignee: Chemische Fabrik Budenheim KGInventors: Marvin Bargon, Steffen Bugner, Clémence Longis, Dirk Masurat, Nicole Weyer
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Patent number: 11254886Abstract: A fuel oil composition of the present disclosure may comprise (i) a solid hydrocarbonaceous and/or solid carbonaceous material, wherein the material is in particulate form, and wherein at least about 90% by volume (% v) of the particles are no greater than about 20 microns in diameter; and (ii) a liquid fuel oil; wherein the solid hydrocarbonaceous and/or solid carbonaceous material is present in an amount of at most about 30 by mass (% m) based on the total mass of the fuel oil composition. The present disclosure further relates a process for the preparation of this fuel oil composition, a method of changing a grade of a liquid fuel oil, and a method for adjusting the flash point of a liquid fuel oil.Type: GrantFiled: August 21, 2020Date of Patent: February 22, 2022Assignee: ARQ IP LimitedInventors: Paul Snaith, John Francis Unsworth
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Patent number: 8951942Abstract: 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: GrantFiled: June 19, 2009Date of Patent: February 10, 2015Inventors: Martin Pick, Krzysztof Kazimiers Koziol, Alan Hardwick Windle
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Publication number: 20140227211Abstract: Methods of ex situ synthesis of graphene, graphene oxide, reduced graphene oxide, other graphene derivative structures and nanoparticles useful as polishing agents are disclosed. Compositions and methods for polishing, hardening, protecting, adding longevity to, and lubricating moving and stationary parts in devices and systems, including, but not limited to, engines, turbos, turbines, tracks, races, wheels, bearings, gear systems, armor, heat shields, and other physical and mechanical systems employing machined interacting hard surfaces through the use of nano-polishing agents formed in situ from lubricating compositions and, in some cases, ex situ and their various uses are also disclosed.Type: ApplicationFiled: April 29, 2014Publication date: August 14, 2014Applicant: Peerless Worldwide, LLCInventor: Richard S. Shankman
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Publication number: 20140005085Abstract: 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: ApplicationFiled: May 31, 2013Publication date: January 2, 2014Applicant: NanoMech, Inc.Inventor: Ajay P. Malshe
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Patent number: 8598098Abstract: 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: GrantFiled: January 24, 2008Date of Patent: December 3, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Akira Nakagawa, Yutaka Mabuchi
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Patent number: 8575079Abstract: 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: GrantFiled: May 2, 2008Date of Patent: November 5, 2013Assignee: Industrial Technology Research InstituteInventors: Gan-Lin Hwang, Ting-Yao Su, Woan-Shiow Tzeng, Hsin-Yi Wu
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Patent number: 8492320Abstract: A lubricant composition which is suitable as a fluorine oil, fluorine grease, and which is excellent in stabilizability, as well as a lubricant composition which is suitable as a fluorine oil, fluorine grease, and which has excellent rust prevention properties while keeping a heat resistance.Type: GrantFiled: June 28, 2012Date of Patent: July 23, 2013Assignee: NOK Klueber Co., Ltd.Inventors: Tetsuhiro Miyamoto, Akihiko Shimura, Toshio Nitta, Jiro Yurimoto
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Patent number: 8470748Abstract: Disclosed is an electroconductive grease comprising a fluorine oil, an electroconductive material, and a thickening agent, the electroconductive grease containing 5 to 20 wt. % of carbon black having a DBP oil absorption amount of 250 ml/100 g or less as the electroconductive material, and 2 to 15 wt. % of fluorine-containing resin particles having an average primary particle size of 1.0 ?m or less as the thickening agent. The electroconductive grease comprises carbon black having specific properties, and fluorine-containing resin particles, preferably PTFE particles, having an average primary particle size of 1.0 ?m or less, and therefore exhibits excellent oil separation characteristics, namely, a remarkably lower degree of oil separation, which can also be reduced to 10 wt. % or less.Type: GrantFiled: June 26, 2009Date of Patent: June 25, 2013Assignee: NOK Klueber Co., Ltd.Inventors: Akihiko Shimura, Yoshihito Tani, Toshio Nitta
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Publication number: 20120304545Abstract: The present invention relates to a nano-diamond dispersion solution and a method of preparing the same. The method of preparing a nano-diamond dispersion solution comprises the following steps: providing a nano-diamond aggregation; mixing the nano-diamond aggregation with a metal hydroxide solution and stirring the mixture such that the nano-diamond aggregation is separated, to obtain a mixture solution; stabilizing the mixture solution such that the mixture solution is separated into a supernatant and precipitates; and extracting the supernatant and precipitates.Type: ApplicationFiled: February 11, 2011Publication date: December 6, 2012Applicant: NEOENBIZInventors: Tae Hee Park, Kyu Tae Lee, Jung Suk Lee
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Publication number: 20120251521Abstract: 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: ApplicationFiled: April 2, 2011Publication date: October 4, 2012Inventors: Bertha Rostro, Mehdie Kohanloo
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Publication number: 20120122743Abstract: A friction modifying lubricant additive is provided comprising a base oil, colloidal nanocarbon particles, and a fluorine containing oligomeric dispersant. The fluorine containing oligomeric dispersant includes an anchoring group, a lipophilic hydrocarbon group, and a fluorinated oleophobic group. Further, a friction modifying lubricant additive is provided comprising a base oil, colloidal nanocarbon particles, a fluorine containing oligomeric dispersant, and at least one component selected from the group consisting of an antifriction component, an antiwear component, and an extreme pressure component. In another aspect, a method of manufacturing a lubricant additive is provided, the method comprising the step of mixing together a fluorine containing oligomeric dispersant, a dispersion of colloidal nanocarbon particles in a first base oil, and a second base oil.Type: ApplicationFiled: July 23, 2010Publication date: May 17, 2012Applicant: INTERNATION TECHNOLOGY CENTERInventors: Michail Grigorievich Ivanov, Leonid Evgenievich Deev, Olga Aleksandrova Shenderova
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Patent number: 8178612Abstract: The present invention relates to an aqueous/oil emulsion containing fluoropolymer that is capable of forming thick coatings in a single pass, which coatings after drying and baking are free of cracks.Type: GrantFiled: January 19, 2005Date of Patent: May 15, 2012Assignee: E. I. du Pont de Nemours and CompanyInventor: Jurgen Hofmans
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Publication number: 20120103183Abstract: A piston coating is described that comprises a phenolic resin, at least one solid lubricant selected from among the group including graphite, MoS2, WS2, BN, and PTFE, as well as carbon fibers. Said coating has an advantageous wear resistance and an advantageous coefficient of friction.Type: ApplicationFiled: April 27, 2010Publication date: May 3, 2012Inventors: Christian Jung, Jurgen Reitenspies
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Publication number: 20110224113Abstract: 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: ApplicationFiled: June 19, 2009Publication date: September 15, 2011Inventors: Martin Pick, Krzysztof Kazimiers Koziol, Alan Hardwick Windle
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Publication number: 20110172132Abstract: 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: ApplicationFiled: January 12, 2011Publication date: July 14, 2011Inventors: Blake T. Branson, Charles M. Lukehart, Jim L. Davidson
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Publication number: 20110111993Abstract: Disclosed is an electroconductive grease comprising a fluorine oil, an electroconductive material, and a thickening agent, the electroconductive grease containing 5 to 20 wt. % of carbon black having a DBP oil absorption amount of 250 ml/100 g or less as the electroconductive material, and 2 to 15 wt. % of fluorine-containing resin particles having an average primary particle size of 1.0 ?m or less as the thickening agent. The electroconductive grease comprises carbon black having specific properties, and fluorine-containing resin particles, preferably PTFE particles, having an average primary particle size of 1.0 ?m or less, and therefore exhibits excellent oil separation characteristics, namely, a remarkably lower degree of oil separation, which can also be reduced to 10 wt. % or less.Type: ApplicationFiled: June 26, 2009Publication date: May 12, 2011Applicant: NOK KLUBER CO., LTD.Inventors: Akihiko Shimura, Yoshihito Tani, Toshio Nitta
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Publication number: 20100022422Abstract: 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: ApplicationFiled: May 15, 2007Publication date: January 28, 2010Inventors: Gefei Wu, Zhiqiang Zhang, Frances E. Lockwood, Stephanie M. McCoy, Thomas R. Smith
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Publication number: 20090305052Abstract: 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: ApplicationFiled: September 8, 2006Publication date: December 10, 2009Applicant: GRAPHIT KROPFMUHL AGInventor: Werner Handl
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Publication number: 20090298725Abstract: Fluid compositions that have enhanced thermal conductivity, up to 250% greater than their conventional analogues, and methods of preparation for these fluids are identified. The compositions contain at a minimum, a fluid media such as oil or water, and a selected effective amount of carbon nanomaterials necessary to enhance the thermal conductivity of the fluid. One of the preferred carbon nanomaterials is a high thermal conductivity graphite, exceeding that of the neat fluid to be dispersed therein in thermal conductivity, and ground, milled, or naturally prepared with mean particle size less than 500 nm, and preferably less than 200 nm, and most preferably less than 100 nm. The graphite is dispersed in the fluid by one or more of various methods, including ultrasonication, milling, and chemical dispersion. Carbon nanotube with graphitic structure is another preferred source of carbon nanomaterial, although other carbon nanomaterials are acceptable.Type: ApplicationFiled: October 31, 2007Publication date: December 3, 2009Inventors: Zhiqiang Zhang, Frances E. Lockwood
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Publication number: 20080248979Abstract: 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: ApplicationFiled: January 24, 2008Publication date: October 9, 2008Inventors: Akira NAKAGAWA, Yutaka Mabuchi
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Publication number: 20080182766Abstract: A solid stick composition for use on steel surfaces that are in sliding or rolling-sliding contact. The solid stick composition comprises a vinyl ester resin, for example, from about 20 to about 80 weight percent vinyl ester resin, a solid lubricant, for example from about 0 to about 80 weight percent lubricant, and optionally a friction modifier, for example from about 0 to about 40% weight percent friction modifier, or a combination of a solid lubricant and a friction modifier. The solid stick comprises at least one of the lubricant or the friction modifier. A method of controlling friction between a metal surface and a second metal surface by applying the solid stick composition to one or more than one of the metal surfaces is also disclosed as well as a method of reducing lateral force in a rail system comprising applying the solid stick composition onto a wheel or rail surface.Type: ApplicationFiled: January 26, 2007Publication date: July 31, 2008Inventors: John Cotter, Annette Morgan, Xin Lu, Donald Eadie
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Publication number: 20080176774Abstract: Liquid hydrofluorocarbons provide low corrosivity lubrication of metallic surfaces especially at elevated temperatures.Type: ApplicationFiled: December 17, 2007Publication date: July 24, 2008Applicant: E. I. DUPONT DE NEMOURS AND COMPANYInventors: GREGORY A. BELL, JON LEE HOWELL, CLAY WOODWARD JONES, ROBERT CLAYTON WHELAND
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Patent number: 7091161Abstract: An anti-seize compound is disclosed for use on surfaces of threaded connections made of speciality alloys such as high nickel or chrome ferrous alloys or other speciality alloys prone to galling under high stress conditions. The compound using a metal fluoride as the anti-seize film forming agent at least above about 5 wt %.Type: GrantFiled: May 14, 2003Date of Patent: August 15, 2006Assignee: Jet-Lube, Inc.Inventors: Donald A. Oldiges, Jr., Herschel McDonald, Tom Blake, Kevin Stroup, Don A. Oldiges, III
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Publication number: 20040186025Abstract: A grease composition is produced by mixing a thickener comprising a fluoro resin and a second thickener component (a metallic soap, a complex metallic soap, an N-substituted terephthalamic acid metal salt, organic bentonite or a calcium sulfonate complex) into a base oil. This grease composition is excellent in heat resistance, load carring capacity, water resistance, rust protection, lubricating life and the like.Type: ApplicationFiled: March 4, 2003Publication date: September 23, 2004Applicant: NSK Ltd.Inventors: Shinya Nakatani, Yasunobu Fujita, Michita Hokao, Hirotoshi Miyajima
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Patent number: 6734147Abstract: 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: GrantFiled: October 3, 1997Date of Patent: May 11, 2004Assignee: LCC County Mosquito ControlInventor: Richard Levy
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Patent number: 6689721Abstract: This invention is to provide a conductive grease which is less to decrease conductivity as a time passes. The conductive grease comprises a base 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: GrantFiled: February 27, 2003Date of Patent: February 10, 2004Assignee: NSK Ltd.Inventors: Katsuaki Denpo, Atsushi Yokouchi, Koichi Hachiya, Michiharu Naka, Tooru Shouda, Hideki Koizumi
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Publication number: 20030158047Abstract: 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: ApplicationFiled: February 27, 2003Publication date: August 21, 2003Applicant: NSK LTD.Inventors: Katsuaki Denpo, Atsushi Yokouchi, Koichi Hachiya, Michiharu Naka, Tooru Shouda, Hideki Koizumi
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Patent number: 6589918Abstract: 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: GrantFiled: June 21, 2001Date of Patent: July 8, 2003Assignee: NSK Ltd.Inventors: Katsuaki Denpo, Atsushi Yokouchi, Koichi Hachiya, Michiharu Naka, Tooru Shouda, Hideki Koizumi
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Patent number: 6569817Abstract: A composition containing an anti-static agent and a lubricant for treatment of a surface of a flat article (2) so as to define point of separation of a plurality of at least partly superimposed flat articles. Due to the lubricant, the friction coefficient between the treated surface and a surface of an adjacent article and, therefore, the static friction between the two articles is reduced. Due to the anti-static agent, static charging of the treated article and, therefore, adhesion between articles obtainable through static charging is reduced. In a plurality of superimposed, flat articles statically charged in a d.c. voltage field, the named two effects produce a displacement at the location of a treated surface, when a displacement force (11) with a component parallel to the principal surfaces of the articles is applied to the plurality of articles.Type: GrantFiled: October 13, 1999Date of Patent: May 27, 2003Assignee: Ferag AGInventors: Carl Conrad Maeder, Markus Scheuber
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Publication number: 20020142920Abstract: A grease composition is disclosed, wherein a metallic soap-base thickener containing a long-fiber material having a major axis part length of at least 3 &mgr;m is blended with a base oil obtained by mixing a lubricating oil having a polar group within the molecule structure and a non-polar lubricating oil, which can improve the initial sound (cage sound) of bearing at the starting of operation in a low-temperature environment and is effective on the reduction of fretting damage (abrasion) or torque, and also a rolling bearing and a linear acting apparatus each obtained by packing the grease composition are disclosed, which exhibit excellent low-temperature acoustic property and are reduced in the fretting damage (abrasion) or torque.Type: ApplicationFiled: November 1, 2001Publication date: October 3, 2002Applicant: NSK LTD.Inventors: Youichiro Sugimori, Atsushi Yokouchi, Hisao Sumiya, Michiharu Naka
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Patent number: 6432886Abstract: A lubricant for use in lubricating the shot sleeve of a machine for die casting molten metals is in the form of agglomerated particles. The particles have an inorganic high pressure lubricant agglomerated, with a binder material and with an organic material. The solid lubricant is resistant to dusting, caking and breakage, can be fed through an automatic dispensing machine, and combines inorganic and organic materials to achieve excellent lubrication properties. The product has low flash and low smoke release into the environment.Type: GrantFiled: September 7, 2000Date of Patent: August 13, 2002Inventor: Mary R. Reidmeyer
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Publication number: 20020022580Abstract: 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: ApplicationFiled: June 12, 2001Publication date: February 21, 2002Inventors: Hideharu Fukunaga, Makoto Yoshida, Takami Sawai
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Publication number: 20020019319Abstract: 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: ApplicationFiled: June 21, 2001Publication date: February 14, 2002Applicant: NSK LTD.Inventors: Katsuaki Denpo, Atsushi Yokouchi, Koichi Hachiya, Michiharu Naka, Tooru Shouda, Hideki Koizumi
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Patent number: 6335309Abstract: 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: GrantFiled: July 20, 1999Date of Patent: January 1, 2002Assignees: Denso Corporation, Nippon Graphite Industries Co., Ltd.Inventors: Hiromi Takagi, Tomoyuki Hatano, Tadao Okura
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Patent number: 6291407Abstract: A lubricant for use in lubricating the shot sleeve of a machine for die casting molten metals is in the form of agglomerated particles. The particles have an inorganic high pressure lubricant agglomerated, with a binder material and with an organic material. The solid lubricant is resistant to dusting, caking and breakage, can be fed through an automatic dispensing machine, and combines inorganic and organic materials to achieve excellent lubrication properties. The product has low flash and low smoke release into the environment.Type: GrantFiled: January 27, 2000Date of Patent: September 18, 2001Assignee: LaFrance Manufacturing Co.Inventor: Mary R. Reidmeyer
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Patent number: 5776866Abstract: 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: GrantFiled: October 11, 1996Date of Patent: July 7, 1998Assignees: Toyota Jidosha Kabushiki Kaisha, Hitachi Powdered Metals Co., Ltd.Inventors: Mithuhiro Karaki, Mikiya Nozaki, Masato Hakoiwa, Toshiaki Midorikawa
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Patent number: 5670461Abstract: Disclosed is a lubricating grease suitable for high temperature use, consisting essentially of 60 to 90% by weight of a base oil mixture comprising at least one mineral oil and at least one synthetic oil, 5 to 17% by weight of at least one urea compound as a thickener, wherein the at least one urea compound is a reaction product of at least one fatty amine and at least one isocyanate or at least one diisocyanate, 2 to 20% by weight of calcium complex grease, 1 to 4% by weight of molybdenum disulphide, 0.2 to 1% by weight of graphite powder, 0.2 to 1% by weight of polytetrafluoroethylene powder, 0.2 to 1% by weight of solid particles of at least one organo-molybdenum compound selected from a molybdenum dithiocarbamate and a molybdenum dithiophosphate, up to 2% by weight of a metal deactivator and up to 2% by weight of a corrosion inhibitor.Type: GrantFiled: August 15, 1995Date of Patent: September 23, 1997Assignee: GKN Automotive AGInventors: Hans Schreiber, Peter Seigert, Herbert Konegen, Wolfgang Hildebrandt