Nitrogen Bonded Directly To The Carbon Of The -c(=o)o- Group Patents (Class 508/464)
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Patent number: 11702385Abstract: The present invention relates to a urea group containing product comprising one or more species of formula (I) R1—X—(C?O)—[NH—R2—NH—(C?O)—NH—R3—NH—(C?O)]n—NH—R2—NH—(C?O)—X—R1 (I), 5 wherein R1 is independently selected from organic groups having (4) to (200) carbon atoms, X is O or NR4, wherein R4 is a hydrogen atom or an aliphatic or aromatic group having (1) to (30) carbon atoms, R2 is independently selected from hydrocarbyl groups having (4) to (40) carbon atoms, R3 is independently selected from hydrocarbyl groups having (2) to (40) carbon atoms, and wherein on average (76) to (100) mol % of all R3 groups contained in the one or more species of formula (I) are hydrocarbyl groups having (2) or (3) carbon atoms, and n is an integer of (2) to (150). The invention further relates to a method of manufacturing such urea group containing products, liquid compositions containing the same and the use of such liquid compositions as rheology control additives.Type: GrantFiled: December 20, 2018Date of Patent: July 18, 2023Assignee: BYK-Chemie GmbHInventors: Christiane Knappke-Bongartz, René Nagelsdiek, Sylvia Bühne, Agnetha Klein, Berthold Jacobs
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Patent number: 11512261Abstract: Diesel fuel composition comprising a diesel base fuel and at least one blowing agent wherein the blowing agent is selected from ester compounds, oxalate compounds and diazene compounds and wherein the blowing agent has a solubility in diesel base fuel at 25° C. of 100 mg/kg or greater, a decomposition temperature in the range from 50° C. to 300° C. as measured by thermogravimetric analysis (TGA), and wherein the diesel fuel composition has an evaporation rate of greater than that of the diesel base fuel as measured by acoustic levitation.Type: GrantFiled: April 5, 2019Date of Patent: November 29, 2022Assignee: SHELL USA, INC.Inventors: Jan-Hendrik Redmann, Andrea Schuetze, Werner Pauer, Hans Moritz, Thomas Hellwig
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Patent number: 11214755Abstract: A lubricating oil composition including: a lubricating base oil; (A) a poly(meth)acrylate having a weight average molecular weight of no more than 50,000, in an amount of 2 to 10 mass %; (B) a phosphite ester of the general formula (1) in an amount of 0.01 to 0.06 mass % in terms of P; (C) a thiadiazole compound in an amount of 0.01 to 0.2 mass %; and (D) a Ca salicylate detergent in an amount of 0.005 to 0.03 mass % in terms of Ca, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of 4.0 to 20.0 mm2/s, and a kinematic viscosity at 100° C. of 1.8 to 5.2 mm2/s; and has a ratio [S]/[P] of 2.2 to 4.0, wherein the [S] represents a sulfur content, and the [P] represents a phosphorus content: wherein R1 and R2 are each independently a group having 5 to 20 carbons represented by the general formula (2); and wherein R3 is a C2-17 linear chain hydrocarbon group, and R4 is a C2-17 linear chain hydrocarbon group.Type: GrantFiled: April 7, 2020Date of Patent: January 4, 2022Assignees: ENEOS CORPORATION, TOYOTA JIDOSHA KABUSHIKIKAISHAInventors: Yohei Susukida, Takahiro Fukumizu, Takatoshi Shinyoshi, Daisuke Tokozakura
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Patent number: 10975325Abstract: The presently claimed invention is directed to poly(meth)acrylate copolymers containing alkyl(meth)acrylate comonomer with branched C17 alkyl group. The invention is further related to lubricating oil compositions comprising poly(meth)acrylate copolymers containing alkyl(meth) acrylate comonomer with branched C17 alkyl group as viscosity index improving component.Type: GrantFiled: January 4, 2017Date of Patent: April 13, 2021Assignee: BASF SEInventors: Szilard Csihony, Mary Elizabeth Dery, Philippe Rabbat, Ryan James Fenton
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Patent number: 8835367Abstract: A lubricating composition contains an oil of lubricating viscosity and 0.5 to 10 percent by weight of a poly(meth)acrylate viscosity modifier polymer comprising (i) 15 weight percent to 35 weight percent monomer units of methyl(meth)acrylate, (ii) 0 to 10 weight percent monomer units of one or more C2-C6 alkyl(meth)acrylates, (iii) 50 to 85 weight percent monomer units of one or more C8-C30 alkyl(meth)acrylates, and (iv) 0 to 10 weight percent monomer units of one or more nitrogen-containing monomers. Such a lubricating composition exhibits a high viscosity index and may impart improved fuel economy to an internal combustion engine.Type: GrantFiled: June 2, 2010Date of Patent: September 16, 2014Assignee: The Lubrizol CorporationInventors: Marina Baum, Haihu Qin, Brent R. Dohner
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Publication number: 20140187457Abstract: A lubricating composition with improved shear stability having a kinematic viscosity (Kv100) from 5 to 32.5 cSt at 100° C., and a viscosity index from 140 to 200. The lubricating composition includes: a bi-modal blend lubricating oil including from 20 to 99 weight percent of a low viscosity basestock having a Kv100 from 2 to 8 cSt at 100° C., and from 1 to 20 weight percent of a high viscosity basestock having a Kv100 from 40 to 600 cSt at 100° C.; a viscosity modifier including a copolymer having units derived from monomers of (i) an ?-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof esterified with an alcohol; and an alkylated aromatic co-base stock in an amount from 1 to 8 weight percent and having a Kv100 from 3 to 15 cSt at 100° C.Type: ApplicationFiled: December 12, 2013Publication date: July 3, 2014Applicant: ExxonMobil Research and Engineering CompanyInventors: Percy Rohinton Kanga, Willie A. Givens, JR.
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Patent number: 8633142Abstract: The present invention provides a poly(hydroxycarboxylic acid) amide salt derivative having formula (III): [Y—CO[O-A-CO]n—Z—R+]mpXq? (III) wherein Y is hydrogen or an optionally substituted hydrocarbyl group, A is a divalent optionally substituted hydrocarbyl group, n is from 1 to 100, preferably from 1 to 10, m is from 1 to 4, q is from 1 to 4 and p is an integer such that pq=m, Z is an optionally substituted divalent bridging group which is attached to the carbonyl group through a nitrogen atom, R+ is an ammonium group and Xq? is a non-sulphur-containing anion. Furthermore, the present invention provides a lubricating composition and a fuel composition containing the poly(hydroxycarboxylic acid) amide salt derivative and the use of the poly(hydroxycarboxylic acid) amide salt derivative for decreasing the phosphorus volatility of a fluid.Type: GrantFiled: July 29, 2009Date of Patent: January 21, 2014Assignee: Shell Oil CompanyInventors: Jan Elsa Eugenia Carty, Dennis Borisovich Kruchinin, Mark Clift Southby, Susan Jane Smith, Nigel Peter Tait
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Patent number: 8629091Abstract: The present invention provides a lubrication system that improves the force of retaining a lubricating component of a foamed lubricant, is capable of minimizing the amount of exudation of the lubricating component which occurs owing to deformation of the foamed lubricant, is capable of compensating for a lubricating function even when the lubricating component exudes insufficiently from the foamed lubricant, and is capable of complying with a demand that the lubrication system has a long life and can be produced at a low cost. The lubrication system comprises a foamed lubricant containing a lubricating component in a resin thereof which foams, hardens, and becomes porous and a grease for auxiliary lubrication which is present together with the foamed lubricant in a portion to be lubricated.Type: GrantFiled: February 26, 2008Date of Patent: January 14, 2014Assignee: NTN CorporationInventor: Mika Kohara
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Publication number: 20130327594Abstract: Chemical compositions, lubricant compositions, and methods of using the same are provided. The lubricant composition may comprise at least on carrier. In certain methods, the lubricant composition may be provided to at least one surface, wherein the lubricant composition reduces a coefficient of friction of the at least one surface. In certain methods, the lubricant composition may be provided to at least one surface, wherein the lubricant composition reduces wear of the at least one surface.Type: ApplicationFiled: June 7, 2012Publication date: December 12, 2013Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.Inventors: Henry Raczkowski, D. Andrew Dineen, JR., Daniel D'Auge
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Publication number: 20130303416Abstract: The present invention is directed to Mannich condensation product sequestering agents or mixtures of Mannich condensation product sequestering agents for use in fuels and lubricating oils. The present invention is also directed to a process for preparing the Mannich condensation product sequestering agents. The present invention is also directed to a product formed by combining, under reaction conditions, a polyisobutyl-substituted hydroxyaromatic compound, an aldehyde, an amino acid or ester thereof, and an alkali metal base to form the Mannich condensation product sequestering agent. The present invention is also directed to a lubricating oil composition, a lubricating oil concentrate, a fuel composition, and a fuel concentrate having the Mannich condensation product sequestering agents of the present invention.Type: ApplicationFiled: April 12, 2013Publication date: November 14, 2013Applicant: Chevron Oronite Company LLCInventors: James J. Harrison, Kenneth D. Nelson
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Publication number: 20130146009Abstract: An engine lubricating system for an internal combustion engine. The system comprises a vehicle engine; a circulation system for providing a continuing flow of lubricant to the vehicle engine and engine components; and a lubricant disposed within the circulation system. The lubricant comprises a base oil and at least one microencapsulated oil additive. The microencapsulated oil additive is selectively released into the lubricant based one or more localized event. The localized event may include a predetermined temperature change, a predetermined pH change, a localized high friction contact, and combinations thereof.Type: ApplicationFiled: December 7, 2011Publication date: June 13, 2013Applicant: GM Global Technology Operations LLCInventors: Thomas C. Pederson, Anil K. Sachdev, Eric W. Schneider
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Patent number: 8333665Abstract: A lubricating having a foam lubricant that minimizes exudation of the lubricating component caused by deformation of the foam lubricant, is excellent in initial lubrication, has a long life, has a low cost, and is excellent in the productivity thereof; a bearing utilizing the lubricating system; a universal joint utilizing the lubricating system; and a process for the production thereof. A lubricating system includes a foam lubricant (9) containing a lubricating component in a resin thereof which foams, hardens, and becomes porous and a lubricant (10) for initial lubrication which is present together with the foam lubricant (9) in a portion to be lubricated. The lubricant (10) for initial lubrication consists of grease having a worked penetration not less than 300 or having a degree of oil separation not less than 0.7 wt % when the grease is left 24 hours at 70° C.Type: GrantFiled: December 11, 2007Date of Patent: December 18, 2012Assignee: NTN CorporationInventor: Mika Kohara
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Publication number: 20120135902Abstract: A lubricating composition contains an oil of lubricating viscosity and 0.5 to 10 percent by weight of a poly (meth)acrylate viscosity modifier polymer comprising (i) 15 weight percent to 35 weight percent monomer units of methyl (meth) acrylate, (ii) 0 to 10 weight percent monomer units of one or more C2-C6 alkyl (meth)acrylates, (iii) 50 to 85 weight percent monomer units of one or more C8-C30 alkyl (meth)acrylates, and (iv) 0 to 10 weight percent monomer units of one or more nitrogen-containing monomers. Such a lubricating composition exhibits a high viscosity index and may impart improved fuel economy to an internal combustion engine.Type: ApplicationFiled: June 2, 2010Publication date: May 31, 2012Applicant: THE LUBRIZOL CORPORATIONInventors: Marina Baum, Haihu Qin, Brent R. Dohner
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Patent number: 8039423Abstract: Disclosed are a lubricant composition including a lubricating base oil, fine particles and a calcium sulfonate-based thickener, a speed reduction gear filled with the lubricant composition, and an electric power steering apparatus including the speed reduction gear. The invention reduces operating noise of the speed reduction gear, regardless of the amount of backlash that occurs on combining a small gear and a large gear and without a more complicated structure for the speed reduction gear, by action of the fine particles. Further, separation of oil is prevented, by action of the calcium sulfonate-based thickener of the lubricant composition, so that electric power steering apparatus noise within the inside of a car is reduced at a low cost.Type: GrantFiled: March 23, 2005Date of Patent: October 18, 2011Assignees: JTEKT Corporation, Kyodo Yushi Co., Ltd.Inventors: Kouji Kitahata, Fumiaki Kasahara, Yoshimasa Shirai, Takashi Okaniwa, Satoshi Yamazaki
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Publication number: 20110034356Abstract: A composition is disclosed which comprises an aryl perfluoropolyether, optionally a halogenated oil, and further optionally a thickening agent. The composition can be used as a lubricant itself or as an additive to an oil or grease lubricant and can withstand temperatures higher than 300° C. without decomposition. The halogenated oil can be a perfluoropolyether, a fluorosilicone, a polytrifluorochloroethylene, or combinations of two or more thereof. The thickening agent can be finely divided silica, boron nitride, clay, soap, poly(tetrafluoroethylene), clay, talc, silica, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof.Type: ApplicationFiled: October 20, 2010Publication date: February 10, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Jon Lee Howell, Alice Elizabeth Van Der Ende, Erik William Perez, Krista Lynn Laugesen
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Publication number: 20110034355Abstract: A composition is disclosed which comprises an aryl perfluoropolyether, optionally a halogenated oil, and further optionally a thickening agent. The composition can be used as a lubricant itself or as an additive to an oil or grease lubricant and can withstand temperatures higher than 300° C. without decomposition. The halogenated oil can be a perfluoropolyether, a fluorosilicone, a polytrifluorochloroethylene, or combinations of two or more thereof. The thickening agent can be finely divided silica, boron nitride, clay, soap, poly(tetrafluoroethylene), clay, talc, silica, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof.Type: ApplicationFiled: October 20, 2010Publication date: February 10, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Jon Lee Howell, Alice Elizabeth Van Der Ende, Erik William Perez, Krista Lynn Laugesen
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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: 20100167968Abstract: A thin adhesive lubricating composition that can cover at least one thread and a screwing abutment of a threaded element of a component of a tubular threaded joint. The screwing abutment can bear against another abutment of another component of the tubular threaded joint in a terminal make up phase. The lubricating composition includes a matrix in which there is dispersed at least one braking additive selected to impart thereto, in addition to lubrication, a coefficient of friction to make it possible to obtain a torque on shoulder resistance value at least equal to a threshold value.Type: ApplicationFiled: April 4, 2008Publication date: July 1, 2010Applicants: Vallourec Mannesmann Oil & Gas France, Sumitomo Metal Industries, LtdInventors: Eliette Pinel, Eric Gard, Nicolas Baudin
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Publication number: 20100160198Abstract: A lubricating oil composition comprising a major amount of base oil of lubricating viscosity and a minor amount of an additive comprising the reaction product obtained by reacting a cyclic carbonate and a hydrocarbyl amine having the formula: R1R2NH in which R1 is hydrogen, or a hydrocarbyl group containing 1 to 40 carbon atoms, and R2 is a hydrocarbyl group containing 1 to 40 carbon atoms.Type: ApplicationFiled: December 18, 2008Publication date: June 24, 2010Inventor: William R. Ruhe, JR.
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Patent number: 7723275Abstract: An anti-seize composition which is non-flowable and dimensionally stable at temperatures greater than about 120° F. and dispensable at room temperature without the application of heat is provided. The composition includes a solid anti-seize lubricant, such as of metallic copper, metallic nickel, metallic aluminum, metallic lead, metallic zinc, graphite, calcium oxide, calcium carbonate, calcium fluoride, calcium stearate, lithium, molybdenum disulfide, boron nitride, barium sulfate. or combinations thereof. The anti-seize lubricant is dispersed in a carrier which is a solid at about room temperature. The carrier includes a grease with an ASTM D 217 penetration at 25° C. from about 200 to about 400 mm, a matrix material, and a naphthenic petroleum oil having a viscosity of less than about 300 SUS at 100° F. and having an API gravity at 60° F. from about 23 to about 25. The matrix material is a polymeric material. Optionally, a refined petroleum wax may also be included.Type: GrantFiled: July 13, 2007Date of Patent: May 25, 2010Assignee: Henkel CorporationInventors: Prakash S. Patel, Shabbir Attarwala
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Patent number: 7452850Abstract: Disclosed are a lubricant composition obtained by adding a buffer particles having an average particle diameter D1 of 50 ?m<D1?300 ?m to a lubricant, a speed reduction gear filled with the lubricant composition, and an electric power steering apparatus having the speed reduction gear incorporated therein, and noise produced in the speed reduction gear can be made lower than ever before irrespective of the magnitude of backlash in a case where a worm and a worm wheel are combined with each other and without complicating the configuration of the speed reduction gear by the buffer action of the buffer particles added to the lubricant composition, thereby making it possible to reduce noise produced in an automobile caused by the electric power steering apparatus at low cost.Type: GrantFiled: September 25, 2003Date of Patent: November 18, 2008Assignee: Jtekt CorporationInventors: Kouji Kitahata, Fumiaki Kasahara, Naoki Uchida, Noritake Ookawa, Hiroaki Murakami
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Patent number: 7381690Abstract: An aqueous slurry composition for lapping, saw wire cutting, and finishing operations which contains about 0.1 to 70% by weight of abrasive particles, 0.1 to 20% by weight of suspending particles that have a density of less than or similar to the aqueous or semi-aqueous carrier medium, and the method for creating the suspension.Type: GrantFiled: September 25, 2003Date of Patent: June 3, 2008Assignee: PPT Research IncInventors: Deliang Ding, Jesse Leaymen, Irl E. Ward
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Patent number: 7323435Abstract: Fluorinated oligourethanes, having number average molecular weight lower than or equal to 9,000, having a branched structure, formed of the following monomers and macromers: a) aliphatic, cycloaliphatic or aromatic polyisocyanates, b) heterofunctional hydrogenated monomers having general formula: X0—(CR1AR2A)b—Y0 ??(Ib) one or more of the following compounds: c) bifunctional hydroxyl (per)fluoropolyethers (PFPE diols) having number average molecular weight in the range 400-3,000, e) monofunctional hydroxyl (per)fluoropolyethers or monofunctional hydroxyl (per)fluoroalkanes (e?), having number average molecular weight in the range 300-1,000, and optionally the following compounds: d) heterofunctional monomers, dI) hydrogen-active compounds, capable to form bonds with the NCO functions stable at the hydrolysis but weak at heat.Type: GrantFiled: June 12, 2000Date of Patent: January 29, 2008Assignee: Ausimont S.p.A.Inventors: Stefano Turri, Marinella Levi, Tania Trombetta
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Patent number: 7244695Abstract: According to the invention there is provided a method of reducing wear of one or both of two steel elements having surfaces in sliding or sliding-rolling contact. The method involves applying an HPF friction control composition to one, or more than one contacting surface of one or both of the two steel elements. In a particular example, the HPF friction control composition comprises a rheological control agent, a lubricant, a friction modifier, and one, or more than one of a retentivity agent, an antioxidant, a consistency modifier, and a freezing point depressant.Type: GrantFiled: May 2, 2003Date of Patent: July 17, 2007Assignee: Kelsan Technologies Corp.Inventor: Don T. Eadie
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Patent number: 7045489Abstract: According to the invention there is provided a liquid friction control composition characterized as either having a high and positive friction characteristic or a low and neutral friction characteristic, comprising a retentivity agent. The liquid friction control composition may also comprise other components such as a solid lubricant, a wetting agent, a consistency modifier, and a preservative. The liquid friction control compositions may be used to modify the interfacial friction characteristics in sliding and rolling-sliding contact such as steel wheel-rail systems including mass transit and freight systems.Type: GrantFiled: September 28, 2001Date of Patent: May 16, 2006Assignee: Kelsan Technologies Corp.Inventors: John Cotter, Donald T. Eadie, Kelvin Spencer Chiddick
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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: 6727207Abstract: The present invention is to provide a rolling bearing suitable for the use under a high temperature, high speed, high load and high vibration condition, having a good rust-preventive performance and the excellent flaking life without a hazard to a human body. A rolling bearing is described, comprising an inner race, an outer race and rolling elements, with a grease composition comprising, as the main components, a base oil, a thickener and at least one kind of a rust-preventive additive made from a naphthenate or a succinic acid derivative, packed in a bearing space formed by at least the inner race, the outer race and the rolling elements, said at least one kind of a rust-preventive additive is present in an amount of 0.1 to 10% by weight based on the total amount of the grease composition.Type: GrantFiled: January 3, 2002Date of Patent: April 27, 2004Assignee: NSK Ltd.Inventors: Kenichi Iso, Atsushi Yokouchi, Michiharu Naka
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Publication number: 20040033909Abstract: A surface-lubricated metal product, with excellent shapability, comprising a metal having coated on both surfaces, or one surface, thereof an alkali-soluble lubricating film mainly comprising an alkali-soluble polyurethane aqueous composition containing a carboxyl group or a sulfonic acid group within the molecule, and a lubricating function-imparting agent in an amount of 1 to 30 mass % based on the alkali-soluble polyurethane aqueous composition, the film being coated to have a film thickness of 0.5 to 10 &mgr;m and the elastic modulus of the film after coating being 0.5 to 20 GPa at 25° C.Type: ApplicationFiled: May 15, 2003Publication date: February 19, 2004Inventors: Ikuro Yamaoka, Hiroshi Kanai, Akihiro Miyasaka, Yoichiro Mori, Tsutomu Tawa, Mitsuhiro Nishimura, Chikako Kouda
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Patent number: 6579835Abstract: Use of fluorinated polyurethanes thermally crosslinkable for obtaining coatings having an improved friction coefficient for the dry lubrication of rubbers, plastics, metals, glass, said polyurethanes obtainable from aqueous dispersions of cationic oligourethanes having a molecular weight≦9,000, formed by: a) polyisocyanates, having NCO functionality higher than 2, b) bifunctional hydrogenated monomers, c) bifunctional hydroxylated (per)fluoropolyethers, e) monofunctional hydroxyl or carboxylic (per)fluoropolyethers or monofunctional hydroxyl (per)fluoroalkanes optionally: d) hydrogenated monomers by which it is possible to insert a crosslinkable chemical function in the oligourethane; dI) hydrogen-active compounds, able to form with the NCO functions thermolabile bonds.Type: GrantFiled: June 8, 2001Date of Patent: June 17, 2003Assignee: Ausimont S.p.A.Inventors: Massimo Scicchitano, Tania Trombetta, Stefano Turri
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Patent number: 6562767Abstract: A lubricant for wire, which is insulated by means of a lacquer coating, and which is used for forming the stator windings of an electrical refrigerating compressor, consists of one or more compounds of the formula CH3—Xn—R, wherein X is a linear or branched hydrocarbon group with n carbon atoms, wherein n is up to 22, and R may be hydrogen or a plurality of different radicals, either in a pure form or dissolved in a suitable solvent. The lubricant is applied to the wire to reduce its coefficient of friction, and it is remarkable for its compatibility with the environmentally unharmful refrigerants, such as R134a (1,1,1,2-tetrafluoroethane), which are used today in refrigerating compressors without capillary tube obstructions.Type: GrantFiled: February 12, 1996Date of Patent: May 13, 2003Assignee: Danfoss Compressors GmbHInventors: Jürgen Bachmann, Lars L. Finsen, Poul Erik Hansen
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Patent number: 6528457Abstract: A composition that can be used as lubricant for high electric field including spark plug boots is disclosed. The composition comprises, or is produced by combining, a halogenated oil such as a perfluoropolyether, a polytrichlorofluoroethylene, a fluorosilicone, or combinations of two or more thereof; a basic thickener; and optionally an additional thickener in which the basic thickener is a metal hydroxide, a metal salt, an ammonium salt, or combinations of two or more thereof. The optional additional thickener is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof. Also provided is a spark plug boot that comprises the composition applied thereto.Type: GrantFiled: June 28, 2001Date of Patent: March 4, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Jon L. Howell, H. Carl Walther, Gregory A. Bell
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Publication number: 20020103090Abstract: Organic compounds containing selected functional groups, and which are grafted with fluorinated olefins, are excellent additives for lubricants which lower wear and/or friction. They are especially useful in metal lubricants.Type: ApplicationFiled: October 19, 2001Publication date: August 1, 2002Inventors: Richard Paul Beatty, Peter Arnold Morken
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Patent number: 6326336Abstract: A turbine lubricant consisting of (A) alkylated diphenylamine and/or phenylnaphthylamines, and (B) sulfurized olefins and/or sulfurized fatty acids and/or ashless dithiocarbamates and/or tetraalkylthiuram disulfides, with the balance containing (C) base oils characterized by very low sulfur contents (<0.03 wt %) and a high level of saturates (>90 volume %), and optionally (D) neutral rust inhibitors, show superior oxidative stability and provide adequate corrosion protection and sludge control for turbine oil and R&O oil applications.Type: GrantFiled: October 16, 1998Date of Patent: December 4, 2001Assignee: Ethyl CorporationInventors: Vincent James Gatto, Helen Ryan, Ramnath Narayan Iyer
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Patent number: 6265359Abstract: An organic solvent free process for the preparation of a grease thickener which is at least one of an imide-diurea and an imide-urethane urea includes (a) providing approximately equimolar amounts of reagents including dibasic acid selected from the group consisting of succinic acid, glutaric acid, phthalic acid, and anhydrides thereof, reactant selected from the group consisting of a primary diamine and a primary amino hydroxy compound, and having 2 to 10 carbon atoms, toluene diisocyanate, and primary monoamine having 8 to 22 carbon atoms; (b) reacting the dibasic acid with the reactant to provide a first reaction mixture; (c) reacting the first reaction mixture with the toluene diisocyanate to provide a second reaction mixture; and (d) reacting the second reaction mixture with the primary monoamine to provide said grease thickener.Type: GrantFiled: January 19, 2000Date of Patent: July 24, 2001Inventors: Anbanandam Parthiban, Kanta Prasad Naithani, Akhilesh Kumar Bhatnagar
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Patent number: 6165951Abstract: The present invention relates to a lubricating composition comprising a hydrocarbon lubricant base oil in combination with (a) a phenyl-naphthylamine, (b) a thiophosphate, and (c) a diphenyl amine, preferably in combination with (d) an aspartic acid ester. Further, the invention relates to the use of the lubricating composition for lubricating a combination of a gas turbine and a steam turbine.Type: GrantFiled: March 10, 1999Date of Patent: December 26, 2000Assignee: Shell Oil CompanyInventor: Helmut Leonhardt
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Patent number: 5962379Abstract: The invention provides certain carbonates which have been prepared by reacting alkylamines with dialkylcarbonates and/or alkylene carbonates, and their use as friction reducing additives in fuels and lubes.Type: GrantFiled: October 5, 1998Date of Patent: October 5, 1999Assignee: Mobil Oil CorporationInventors: James Thomas Carey, Halou Oumar-Mahamat
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Patent number: 5854183Abstract: A grease composition for constant-velocity joints which is prepared by blending a lube base oil with (A) a urea-urethane thickening agent comprising a mixture of(a) 20 to 95 mole % of a diurea compound of the formula (1): ##STR1## (b) 4 to 50 mole % of a urea-urethane compound of the formula (2): ##STR2## and (c) 1 to 50 mole % of a diurethane compound of the formula (3): ##STR3## with each mole percentage being based on the total amount of the components (a) to (c), wherein a ratio of the total number of R.sup.2 --NH--, R.sup.3 --NH-- and R.sup.5 --NH-- groups contained in the mixture to the total number of R.sup.6 --O--, R.sup.8 --O-- and R.sup.9 --O-- groups contained therein lies between 40:60 and 95:5,(B) at least one compound selected from oxidized paraffins, diphenyl hydrogenphosphite and hexamethylphosphoric triamide, and(C) at least one organomolybdenum compound selected from molybdenum dithiophosphate and molybdenum dithiocarbamate.Type: GrantFiled: April 23, 1997Date of Patent: December 29, 1998Assignees: Nippon Oil Co., Ltd., NTN CorporationInventors: Yukio Hasegawa, Shinichi Takabe, Hirotsugu Kinoshita, Souichi Nomura, Fumihiro Itano
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Patent number: 5565126Abstract: A lubricating composition comprises a lubricating grease and a heat-curable resin selected from the group consisting of urea resins, malamine-formaldehyde resins, epoxy resins, furan resins, xylene resins, silicone resins and urethane resins. The lubricating composition permits the solution of the problem of scattering and/or sags and runs thereof from portions to be lubricated, can be molded into a variety of shapes and can show a sealing function by itself. The lubricating composition can serve not only as a lubricant, but also as a rust preventing and a coating agent.Type: GrantFiled: March 28, 1995Date of Patent: October 15, 1996Assignee: Kyodo Yushi Co., Ltd.Inventors: Hiroshi Kimura, Ko Yaegashi
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Patent number: RE50064Abstract: A lubricating oil composition including: a lubricating base oil; (A) a poly(meth)acrylate having a weight average molecular weight of no more than 50,000, in an amount of 2 to 10 mass %; (B) a phosphite ester of the general formula (1) in an amount of 0.01 to 0.06 mass % in terms of P; (C) a thiadiazole compound in an amount of 0.01 to 0.2 mass %; and (D) a Ca salicylate detergent in an amount of 0.005 to 0.03 mass % in terms of Ca, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of 4.0 to 20.0 mm2/s, and a kinematic viscosity at 100° C. of 1.8 to 5.2 mm2/s; and has a ratio [S]/[P] of 2.2 to 4.0, wherein the [S] represents a sulfur content, and the [P] represents a phosphorus content: wherein R1 and R2 are each independently a group having 5 to 20 carbons represented by the general formula (2); and wherein R3 is a C2-17 linear chain hydrocarbon group, and R4 is a C2-17 linear chain hydrocarbon group.Type: GrantFiled: June 29, 2022Date of Patent: July 30, 2024Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, ENEOS CORPORATIONInventors: Yohei Susukida, Takahiro Fukumizu, Takatoshi Shinyoshi, Daisuke Tokozakura