With Nitrogen, Sulfur, Or Halogen Compound Patents (Class 508/151)
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Patent number: 12129555Abstract: The disclosure discloses a preparation method of a composite coating for a resin matrix composite, comprising the following steps: preparing ceramic-resin composite powders which comprise Al2O3 ceramic, a thermosetting resin and a curing agent and are semi-thermosetting resin powders; and respectively spraying pure Al2O3 ceramic powders and the composite powders on the surface of the resin matrix composite by supersonic atmospheric plasma spraying to form a ceramic-resin composite coating, wherein the pure Al2O3 ceramic powders are fed into jet flow in a manner of feeding powder inside a spray gun, and the composite powders are fed into jet flow in a manner of feeding powder outside the spray gun. Correspondingly, the disclosure also provides a preparation device of a composite coating for a resin matrix composite.Type: GrantFiled: April 26, 2022Date of Patent: October 29, 2024Assignee: Army Academy of Armored ForcesInventors: Haidou Wang, Ming Liu, Qiqing Peng, Guozheng Ma, Yanfei Huang, Xinyuan Zhou, Zhiguo Xing, Weiling Guo, Lihong Dong
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Patent number: 11066621Abstract: The present invention provides a lubricating oil composition not containing ZnDTP but comprising: (a) a base oil; (b) molybdenum dialkyldithiocarbamate; and (c) an organic acid metal salt compound having a metal of Group 8 of a short periodic table, copper, or bismuth as a central metal.Type: GrantFiled: March 30, 2018Date of Patent: July 20, 2021Assignee: KYODO YUSHI CO., LTD.Inventors: Takafumi Shimizu, Takahiro Nihira
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Patent number: 10800992Abstract: The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and a boron-containing ashless dispersant. The ashless dispersant may be selected from succinimide compounds prepared from aliphatic or aromatic amines.Type: GrantFiled: March 22, 2016Date of Patent: October 13, 2020Assignee: The Lubrizol CorporationInventors: Patrick E. Mosier, Jeffry G. Dietz, Alexander Sammut, Mary Galic Raguz, Matthew D. Gieselman
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Publication number: 20140213491Abstract: Provide is an anti-burn engine oil, which comprises a base oil, and copper powder or ceramic powder having the particle diameter of 110 nm-300 nm and the aspect ratio of no greater than 3:1, wherein the amount of copper powder or ceramic powder is 25 g-100 g in per liter the base oil. The copper powder or ceramic powder contained in the engine oil can increase the potential energy of the towed particles in the cylinder and form a variety of complex movements under the relative movement of friction pair so as to not only greatly reduce the dry friction, but also have a good lubricating property and avoid the engine oil burning. At the same time, particles in motion possess the specialty of decreasing the temperature of the oil film, increasing the anti-oxidation ability of the engine oil, prolong the service life of the engine oil, and enhance the maintenance of the engine.Type: ApplicationFiled: January 20, 2012Publication date: July 31, 2014Inventors: An Zhang, Jianliang Zhang
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Patent number: 8664442Abstract: A dialkylanilino-cyclohexane compound useful as an antioxidant has the following formula I or formula II: wherein Ar1 and Ar2 can be the same or different and each is an alkylaromatic group; each of R1, R2, R3, and R4 is independently selected from hydrogen or CR7R8; each of R5, R6, and R7 is independently selected from hydrogen and a substituted or unsubstituted C1 to C32 hydrocarbyl group; and each R8 is independently selected from hydrogen and a C1 to C2 alkyl group, provided that when, each of R1 and R2 is CR7R8 and each such R8 is other than hydrogen, R1 and R2 may be joined to form a five or six-membered ring, and provided further that when, each of R3 and R4 is an adjacent CR7R8 and each such R8 is other than hydrogen, R3 and R4 may be joined to form a five or six-membered ring.Type: GrantFiled: September 9, 2008Date of Patent: March 4, 2014Assignee: Chemtura CorporationInventor: Theodore E. Nalesnik
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Publication number: 20140024565Abstract: A composition that includes solid lubricant nanoparticles and an organic medium is disclosed. Also disclosed are nanoparticles that include layered materials. A method of producing a nanoparticle by milling layered materials is provided. Also disclosed is a method of making a lubricant, the method including milling layered materials to form nanoparticles and incorporating the nanoparticles into a base to form a lubricant.Type: ApplicationFiled: June 19, 2013Publication date: January 23, 2014Applicant: Board of Trustees of the University of ArkansasInventors: Ajay P. Malshe, Arpana Verma
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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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Publication number: 20120295825Abstract: A thermal spray powder having a first component A mechanically blended with a second component B, wherein the first component A is a metal or metal composite, preferably at least one of Ni—Cr—Al clad ABN, Ni—Cr—Al clad HBN, Ni—Cr—Al clad agglomerated hexagonal boron nitride powder with organic binder, Ni—Cr—Al agglomerated hexagonal boron nitride powder with inorganic binder, an MCrAlY type powder where M is at least one of Ni, Co, Fe, and wherein component B is a polymer clad with at least one of nickel, nickel alloys, nickel chrome alloys, nickel chrome aluminum alloys, nickel aluminum alloys, cobalt and cobalt alloys. The result is a thermal spray powder of four distinctly different phases making the powder a four-phase blend.Type: ApplicationFiled: January 25, 2011Publication date: November 22, 2012Applicant: SULZER METCO (US) INC.Inventors: Mitchell R. Dorfman, Chris Dambra, Walter Pietrowicz, Scott Wilson, Daniel Garcia, Petr Fiala, Eric Kozculab, Dieter Rudolf Sporer, Omar B. Al-Sabouni, Montia C. Nestler, Eric J. Reents, Gustavo Arevalo
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Publication number: 20120202722Abstract: A concentrate for producing a cooling and release agent for reusable casting dies such as a steel casting die, or a cooling and lubricating agent for machining with an active substance dissolved in water. The concentrate comprises 10 to 50 wt.-% of a protein based on the weight of the concentrate.Type: ApplicationFiled: July 2, 2010Publication date: August 9, 2012Applicants: GELITA AG, KS ALUMINIUM-TECHNOLOGIE GMBHInventors: Manfred Laudenklos, Matthias Reihmann
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Publication number: 20120129740Abstract: The invention relates to a coating (7) made up of a metal layer (8), in which a lubricant (1) which can be released by wear is embedded. In order to provide a wear-resistant coating (7) which is simply structured and economical to produce, the invention provides for the lubricant (1) to consist of an at least singly branched organic compound (2). The present invention further relates to a self-lubricating component (11) with a coating (7) according to the invention applied at least in certain portions, to a method for producing a coating (7), and also to a coating electrolyte (10) comprising at least one type of metal ions and at least one lubricant (1) consisting of an at least singly branched organic compound (2).Type: ApplicationFiled: July 30, 2010Publication date: May 24, 2012Applicants: Tyco Electronics Corporation, Tyco Electronics Amp GmbHInventors: Dominique Freckmann, Helge Schmidt
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Publication number: 20110240479Abstract: The invention provides a method and system for electrolytically coating an article. The method includes providing an article to be coated and disposing the article in an electrolytic cell. The cell includes an anode, a cathode in operable communication with the article, and an electrolyte bath. During electrolysis, the electrolyte bath comprises cobalt ions, phosphorous acid, and tribological particles selected from the group consisting of refractory materials, solid lubricants and mixtures thereof dispersed therein. The method further includes applying steady direct electric current through the anode, the electrolyte bath and the cathode to coat the article with cobalt, phosphorous and the tribological particles. An improved composition of matter is also provided that may be used as a coating, or the composition may be electroformed on a mandrel to form an article made from the composition of matter.Type: ApplicationFiled: May 19, 2011Publication date: October 6, 2011Inventors: Robert Z. Reath, Amitava Datta, John D. Carpenter
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Publication number: 20110195879Abstract: The present disclosure includes fluoropolymer-based materials, methods of making fluoropolymer-based materials, methods of using fluoropolymer-based materials, and the like.Type: ApplicationFiled: November 17, 2009Publication date: August 11, 2011Inventor: Wallace Gregory Sawyer
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Patent number: 7776799Abstract: The invention concerns a method for cold rolling metals using an aqueous lubricant comprising: (1) at least a mixture based on at least an acid selected among saturated or unsaturated mono- or poly-carboxylic acids, comprising 5 to 40 carbon atoms; at least an acid phosphate ester of formula (RO)x-P(?O)(OH)x?, wherein: R is a hydrocarbon radical, optionally polyalkoxylated; x and x? being equal to 3; the carboxylic acid and/or the acid phosphate ester being optionally neutralized by an organic or mineral base; and (2) at least a natural or synthetic wax exhibiting a melting point not less than 50° C. and having an average particle size ranging between 0.5 and 10 ?m. The use of said lubricant enables to increase the productivity of the method by at least 15% relative to a method using a conventional lubricant.Type: GrantFiled: October 3, 2007Date of Patent: August 17, 2010Assignee: Rhodia ChimieInventors: Dominique Raison, Jean-Guy Le Helloco
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Patent number: 7767631Abstract: 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: July 23, 1999Date of Patent: August 3, 2010Assignee: Lee County Mosquito Control DistrictInventor: Richard Levy
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Publication number: 20100144565Abstract: The disclosed invention relates to a functional fluid comprising: at least one oil of lubricating viscosity; at least one detergent, the detergent contributing an amount of metal to the functional fluid equal to a concentration in the range from about 0.015 to about 1% by weight of the functional fluid, the detergent contributing an amount of basicity to the functional fluid equal to a total base number in the range from about 0.3 to about 2; and at least one friction modifier, the friction modifier comprising at least two hydrocarbyl groups attached to a polar group or atom (eg., a nitrogen atom).Type: ApplicationFiled: December 13, 2007Publication date: June 10, 2010Inventors: Masahiko Ikeda, Susie Hurley, William D. Abraham, James L. Sumiejski, Craig D. Tipton
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Patent number: 7718585Abstract: A lubricant composition is disclosed comprising a superabsorbent polymer combined 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. In the composition, the material for decreasing friction comprises 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.Type: GrantFiled: July 21, 1999Date of Patent: May 18, 2010Assignee: Lee County Mosquito Control DistrictInventor: Richard Levy
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Publication number: 20100087346Abstract: The present invention provides a composition that includes a rhenium-based alloy and a solid film lubricant. The rhenium-based alloy comprises an alloying substance including at least one constituent having a stronger affinity to oxygen than does Re when exposed to an atmosphere at a temperature of at least about 285° C.Type: ApplicationFiled: March 31, 2006Publication date: April 8, 2010Inventors: William L. Giesler, Robbie J. Adams, Todd A. Langston, Margaret M. Floyd
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Publication number: 20090156438Abstract: A lubricant composition comprising an oil of lubricating viscosity, an amino-functionalized acrylic or methacrylic-containing polymer, comprising about 2 percent to about 8 percent by weight of an amine moiety bearing a tertiary amino group, attached to said polymer through an ester, amide, or imide linkage; and a nitrogen-containing dispersant, provides reduced friction to an internal combustion engine and improved fuel economy.Type: ApplicationFiled: December 14, 2006Publication date: June 18, 2009Applicant: Lubrizol CorporationInventors: Mohamed G. Fahmy, Daniel C. Visger, Barton J. Schober, Brent R. Dohner, Patrick E. Moster, Jody A. Kocsis, Isao Nakagawa
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Publication number: 20080269085Abstract: A lubricating oil composition with improved frictional and wear performance, especially when the ratio of polysulfides is controlled, wherein said composition comprises a major amount of an oil of lubricating viscosity, at least one alkali metal borate; at least one dihydrocarbyl polysulfide component comprising a mixture of sulfides and having at least 30% dihydrocarbyl tetrasulfide or higher sulfides; at least one non-acidic phosphorus component comprised of a trihydrocarbyl phosphite; at least one dihydrocarbyl dithiophosphate; and a phosphorus component comprising a dihydrocarbyl phosphite component is disclosed.Type: ApplicationFiled: April 30, 2007Publication date: October 30, 2008Applicants: CHEVRON U.S.A. INC., CHEVRON ORONITE COMPANY LLCInventors: Michael J. Haire, Kurt J. Schuermans, Marc J. De Weerdt
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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: 20080171677Abstract: The present invention is directed to a lubricating oil composition comprising a lubricating oil basestock, a boron-containing additive of at least 0.1 weight percent of the composition and less than 8.0 weight percent, and ashless sulfur additive of at least 0.1 weight percent of the composition and less than 4.0 weight percent, a dispersant-detergent-inhibitor system of less than 15 percent weight percent of the composition, a zinc dithiophosphate additive of at least 0.2 weight percent of the composition and less than 2.0 weight percent of the composition. The elements in the formulated oil composition having at least 100 and less than 630 PPM phosphorus, at least 1,000 PPM and less than 3,000 PPM, at least 100 and less than 630 ppm Phosphorous, and at least 105 PPM and less than 710 PPM zinc. In a second embodiment, an additive composition for lubricating oils is disclosed. In a third embodiment, a method to obtain favorable lubricating properties is disclosed.Type: ApplicationFiled: March 30, 2007Publication date: July 17, 2008Inventors: William H. Buck, L. Oscar Farng, Douglas E. Deckman, Steven Kennedy, Andrew G. Horodysky
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Publication number: 20080145649Abstract: A coating composition is described, containing (a) a metallic matrix based on nickel, cobalt, iron; or combinations thereof; (b) a ceramic phase, containing at least one metal boride or metal silicide compound; and (c) a lubricant phase. Methods of providing wear-resistance and low-friction characteristics to an article (e.g., a gas turbine) are also described, using the coating composition. Related structures are also discussed.Type: ApplicationFiled: December 14, 2006Publication date: June 19, 2008Applicant: GENERAL ELECTRICInventors: Uma Devi Mannem, Krishnamurthy Anand, Dennis Michael Gray, Farshad Ghasripoor
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Publication number: 20080139422Abstract: There is disclosed a lubricant composition comprising major amount of a base oil and a minor amount of an additive composition comprising (i) a triazole compound substituted with an aryl moiety; (ii) a nitrogen-containing compound represented by the formula (I): wherein R1 and R2 are each independently selected from the group consisting of at least one aryl moiety comprising from about 6 to about 30 atoms, hydrogen, halogen, hydroxy, hydrocarbyl, substituted hydrocarbyl, amino, amido, phosphoro, and sulfono; and (iii) a sulfurized compound.Type: ApplicationFiled: December 6, 2006Publication date: June 12, 2008Inventors: John T. Loper, Naresh C. Mathur, Paul G. Griffin, David A. Hutchison
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Publication number: 20080139421Abstract: There is disclosed a lubricant composition comprising a major amount of a base oil and a minor amount of an additive composition comprising (i) a triazole compound substituted with an aryl moiety; (ii) a nitrogen-containing compound represented by the formula (I): wherein R1 and R2 are each independently selected from the group consisting of at least one aryl moiety comprising from about 6 to about 30 atoms, hydrogen, halogen, hydroxy, hydrocarbyl, substituted hydrocarbyl, amino, amido, phosphoro, and sulfono; and (iii) a phenolic compound.Type: ApplicationFiled: December 6, 2006Publication date: June 12, 2008Inventors: John T. Loper, Naresh C. Mathur, Paul G. Griffin, David A. Hutchison
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Patent number: 7294608Abstract: 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: GrantFiled: April 28, 2003Date of Patent: November 13, 2007Assignee: Jet-Lube, Inc.Inventors: Donald Oldiges, Herschel McDonald, Tom Blake
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Patent number: 6872235Abstract: The invention concerns a method of preparing an iron-based powder comprising the steps of mixing and heating an iron-based powder, at least one oligomer amide type lubricant, at least one fatty acid and optionally one or more additives to a temperature above the melting point of the lubricant and subsequently cooling the obtained mixture. The invention also comprises the mixture of the iron-based powder, the oligomer amide type lubricant and the fatty acid.Type: GrantFiled: July 25, 2002Date of Patent: March 29, 2005Assignee: Höganäs ABInventor: Björn Johansson
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Patent number: 6764983Abstract: The present invention provides new compounds that can be used as antioxidants for either molecules that do not conation ester groups or esters of alcohols that contain two or more ester groups per molecule wherein at least two of the ester groups are on adjacent carbons in the alcohol moiety. Copper ions can enhance the antioxidization activity of the new compounds. Compositions containing one of the new compound and methods of using the new compounds are disclosed.Type: GrantFiled: July 1, 2002Date of Patent: July 20, 2004Assignee: Iowa State University Research FoundationInventors: Earl G. Hammond, Yongyi Julia Jiang
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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: 6613721Abstract: A colloidal suspension has a metal core surrounded by a surfactant. The colloidal suspension is about 0.5 micron to about 3-4 microns in diameter. The colloidal suspension acts as a lubricant and protects surfaces in rolling and/or sliding contact. When mixed with a lubricant, the colloidal suspension increases the operating life of the lubricated item. The colloidal suspension preferably is tin or bismuth nano-phase particles encased in a surfactant, preferably oleyl sarcosinate, N-coco sarcosinate, sodium sulfonate, petroleum sulfonate, or octadecenyl amine.Type: GrantFiled: March 27, 1997Date of Patent: September 2, 2003Assignee: The Timken CompanyInventors: Carl F. Kernizan, James R. Spence
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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: 6511945Abstract: The invention concerns new lubricants comprising a combination of a polyethylene oxide and an oligomer amide and an improved metallurgical powder composition comprising a major amount of an iron-based powder and a minor amount of this new lubricant. Furthermore, the invention concerns a method requiring low ejection force and low ejection energy for producing green products having high green strength. The method comprises the steps of mixing an iron-based powder and optional additives with the new lubricant and compacting the obtained powder composition.Type: GrantFiled: January 17, 2002Date of Patent: January 28, 2003Assignee: Höganäs ABInventor: Maria Ramstedt
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Patent number: 6358891Abstract: A lubricating/sealing composition is provided according to the present invention and finds particular use as a lubricating medium in internal combustion engines. According to the present invention, the lubricating/sealing composition comprises a base lubricating oil; a plurality of polytetrafluoroethylene particles; a plurality of metal particles; a plurality of molybdenum disulfide particles; an emulsifying agent and a predetermined volume of water. These ingredients are subjected to an elevated temperature, elevated pressure, agitation and shear conditions to produce the composition of the present invention. The composition of the present invention serves not only to provide lubricating properties but also serves as a sealant which seals any areas of the engine which are prone to leaks and the like.Type: GrantFiled: July 20, 2000Date of Patent: March 19, 2002Inventor: Leonard M. Andersen
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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: 6245721Abstract: The lubricant additive formulation for introduction into a petroleum based carrier, such as, motor oil, in which the additive contains substantially equal amounts of naphthenic oil and chlorinated paraffin with minor amounts of a paraffin oil and anti-wear and anti-oxidant agents; and in certain applications, metal powders or soaps are introduced into the additive together with an effective amount of grease necessary to maintain the metal particles in suspension when introduced into the liquid carrier.Type: GrantFiled: November 2, 1999Date of Patent: June 12, 2001Inventors: Peter Chun, John A. Elverum
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Patent number: 5747428Abstract: A self-lubricating solid coating that contains three layers of lubricants is disclosed. The solid lubricant may be prepared from chromium silicide or chromium carbide; disulfide and diselenide of tungsten, molybdenum, niobium, or tantalum; and silver or gold. This material combination provides superior wear and friction reduction over the temperature range applied. In this invention, chromium silicide or chromium carbide is a hard lubricant with a low wear property to protect the substrate metal; disulfide or diselenide is a soft lubricant with a very low coefficient of friction; and silver or gold with their high thermal conductivity are effective in conducting heat especially at high sliding velocities. Both silver and gold have a low friction coefficient with high oxidative stability.Type: GrantFiled: March 10, 1997Date of Patent: May 5, 1998Inventor: Behrooz A. Khorramian
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Patent number: 5584943Abstract: A lubricant and surface conditioner for formed metal surfaces, particularly beverage containers, reduces the coefficient of static friction of said metal surfaces and enables drying said metal surfaces at a lower temperature. An aqueous composition for forming the conditioner by contact with metal surfaces includes a water-soluble organic material selected from a phosphate ester, alcohol, fatty acid including mono-, di-, tri-, and polyacids; fatty acid derivatives such as salts, hydroxy acids, amides, esters, ethers and derivatives thereof; and mixtures thereof and at least one of the elements selected from zirconium, titanium, cerium, aluminum, iron, tin, vanadium, tantalum, niobium, molybdenum, tungsten, and hafnium in metallic or ionic form. In order to avoid formation of sludge in the aqueous lubricant and surface conditioner forming composition, the composition should contain as little as possible of materials containing phenanthrene rings, such as conventional surfactants made by ethoxylating rosin.Type: GrantFiled: December 22, 1994Date of Patent: December 17, 1996Assignee: Henkel CorporationInventors: Richard D. Banaszak, Timm L. Kelly, Gary L. Rochfort
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Patent number: 5547594Abstract: 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: GrantFiled: February 3, 1995Date of Patent: August 20, 1996Inventor: Athanasios Karydas