Patents Examined by Taiwo Oladapo
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Patent number: 11674105Abstract: Lubricating compositions comprising an azole-acrylic adduct formed by contacting an azole compound with an acrylic. The adduct formed has at least one N-alkyl group comprising at least one acyl. The lubricating composition also comprises a thiadiazole. Methods of lubricating a component of a farm tractor, off-highway vehicle or drivetrain comprising contacting the component with the lubricating composition comprising an azole-acrylic adduct formed by mixing an azole compound with an acrylic. Methods of reducing corrosion in a component. The use of an azole-acrylic adduct in a lubricating composition to reduce corrosion in a component.Type: GrantFiled: August 17, 2016Date of Patent: June 13, 2023Assignee: The Lubrizol CorporationInventors: Nga H. Nguyen, Peter Miatt
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Patent number: 11667860Abstract: A stabilized paraffin inhibitor/pour point depressant (PI/PPD) product formulation is described which includes a copolymer having a monomer selected from the group consisting of alkyl acrylate polymers, alkyl methacrylate polymers, and combinations thereof, where the copolymer comprises vinyl acetate and the product includes an ethylene-based copolymer. The presence of the vinyl acetate stabilizes the product to prevent or inhibit the ethylene-based copolymer from separating out of the product. The product is useful to reduce paraffin deposition and/or improve flow characteristics of petroleum fluids, such as crude oil.Type: GrantFiled: June 20, 2021Date of Patent: June 6, 2023Assignee: Baker Hughes Oilfield Operations LLCInventors: Kui Xu, Wojciech Jakubowski, David W. Jennings, Rebecca Vilain
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Patent number: 11661563Abstract: An extremely rheopectic sulfonate-based grease composition and method comprising adding overbased calcium sulfonate, overbased magnesium sulfonate, and a facilitating acid, using a particular type of overbased calcium sulfonate and/or methods for adding overbased calcium sulfonate relative to the magnesium sulfonate and facilitating acid to favor the reaction between the magnesium sulfonate and facilitating acid. A preferred overbased calcium sulfonate comprises benzene rings having multiple alkyl groups. Preferred methods comprise (1) adding all calcium sulfonate after adding the magnesium sulfonate and facilitating acid, (2) adding a first portion of calcium sulfonate with the magnesium sulfonate before adding the facilitating acid and a second portion of calcium sulfonate after the facilitating acid, and/or (3) one or more calcium sulfonate delay periods relative to adding the facilitating acid.Type: GrantFiled: February 11, 2020Date of Patent: May 30, 2023Assignee: NCH CorporationInventors: J. Andrew Waynick, Alisha Farrington, Deon Copeland
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Patent number: 11654443Abstract: According to the invention there is provided a method of processing a mixture of minerals including the steps of: (a) providing a mixture of minerals which includes a metal containing mineral and one or more unwanted gangue minerals; (b) achieving a contact between the mixture of minerals and polymeric material that includes a mineral binding moiety which selectively binds to the metal containing mineral; and (c) separating the gangue minerals and the polymeric material which has the metal containing mineral bound thereto.Type: GrantFiled: March 30, 2020Date of Patent: May 23, 2023Assignee: CIDRA MINERALS PROCESSING INC.Inventors: Warrick James David Allen, Simon David Childs, Andrea Duffy, Nicholas Horrocks, Elizabeth Lakin, Paul Edward Young Milne, James Leonard Rolfe
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Patent number: 11639479Abstract: There is disclosed an antifoam component which includes at least one acrylamide polymer for use in a diesel fuel. Acrylamide polymers prepared by polymerizing a (meth)acrylamide monomer to yield a homopolymer or, alternatively, the acrylamide polymer may be prepared by polymerizing a (meth)acrylamide monomer and a (meth)acrylate monomer to yield a heteropolymer.Type: GrantFiled: March 19, 2019Date of Patent: May 2, 2023Assignee: The Lubrizol CorporationInventors: James H. Bush, David M. Nickerson, Rochelle L. Kovach, Jayasooriya Sujith Perera, Elizabeth A. Schiferl, Kamalakumari K. Salem
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Patent number: 11572527Abstract: Provided is a grease composition which contains (A) a mixed base oil containing (A1) a low-viscosity base oil having a kinematic viscosity at 40° C. of 10 to 50 mm2/s and (A2) a high-viscosity base oil having a kinematic viscosity at 40° C. of 200 to 700 mm2/s, (B) a lithium-based thickener and (C) a polymer having a kinematic viscosity at 100° C. of 1,000 to 100,000 mm2/s, and has an apparent viscosity at ?10° C., as measured according to JIS K2220:2013 and at a shear rate of 10 s?1, of 50 to 250 mPa·s. The grease composition is excellent in pumpability and is also excellent in wear resistance under poor lubrication conditions.Type: GrantFiled: December 20, 2018Date of Patent: February 7, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventor: Go Watanabe
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Patent number: 11571737Abstract: According to an aspect of the present invention, an aqueous composition contains at least one selected from a group consisting of a carboxylic acid compound represented by the following formula (1), a carboxylic anhydride represented by the following formula (2), and a trimellitic anhydride; a basic compound; and water. In the formula (1), “R” represents an alkanediyl group having 2 to 4 carbons, a vinylene group, or a benzene ring, and “a” represents 2 or 3. In the formula (2), “R” represents an alkanediyl group having 2 to 4 carbons, a vinylene group, or a benzene ring.Type: GrantFiled: June 21, 2019Date of Patent: February 7, 2023Assignee: MORESCO CORPORATIONInventors: Takahito Tsujimoto, Hiroaki Tomimatsu, Teruaki Yokoo
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Patent number: 11572524Abstract: A gear fluid composition for lubricating a driveline including organic sulfide compounds effective to achieve passing friction, extreme pressure, and copper corrosion.Type: GrantFiled: May 25, 2022Date of Patent: February 7, 2023Assignee: Afton Chemical CorporationInventor: Carey Lehner
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Patent number: 11565217Abstract: The invention pertains to a polyaryl ether sulfone polymer solution [solution (SP)] comprising: —at least one sulfone polymer [polymer (PSI)] having recurring units, wherein more than 50% moles, with respect to all the recurring units of polymer (PSI), are recurring units (RPSI) selected from the group consisting of those of formulae (RPSI-1) and (RPSI-2) herein below: (RPSI-1) (RPSI-2) wherein: —each of E?, equal to or different from each other and at each occurrence, is selected from the group consisting of those of formulae (E?-1) to (E?-3): (E?-I) (E?-II) (E?-III) —each R? is independently selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium; and —j? is zero or an integer of 1 to 4; is a bond or a divalent group optionally comprising one or more than one heteroatom; preferablyType: GrantFiled: March 14, 2017Date of Patent: January 31, 2023Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.p.A.Inventors: Emanuele Di Nicolo′, Pasquale Campanelli, Narmandakh Taylor
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Patent number: 11549078Abstract: Provided are a lubricating oil composition which contains a base oil (A) containing an ester-based oil (Al), and a polymer (B) having a constituent unit (b) derived from an alkyl (meth)acrylate, wherein the content of the polymer (B) is 0.1 to 10% by mass based on the total amount of the lubricating oil composition, the lubricating oil composition has a viscosity index of 350 or more, the lubricating oil composition has a BF viscosity at ?40° C. of 4000mPa·s or less, and the lubricating oil composition is used for an impregnated bearing, and an impregnated bearing impregnated with the lubricating oil composition. The lubricating oil composition has excellent lubricity in use in a wide temperature environment from a low temperature region to a high temperature region, is capable of maintaining excellent infiltration property even in an environment in which a temperature change between a low temperature and a high temperature is severe, and is suitable for use in an impregnated bearing.Type: GrantFiled: May 31, 2019Date of Patent: January 10, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventor: Asami Koga
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Patent number: 11499115Abstract: Disclosed is a lubricant composition including: at least one base oil; at least one polyalkylene glycol with at least 50% by weight of butylene oxide units and having a kinematic viscosity, measured at 100° C. according to standard ASTM D445 (2015), which is greater than or equal to 50 mm2/s, a kinematic viscosity, measured at 40° C. according to standard ASTM D445 (2015), which is greater than or equal to 1000 mm2/s and a Viscosity Index, measured according to standard ASTM D2270 (2012), which is greater than or equal to 180. Also disclosed is the use of such a composition for transmission or gear lubrication.Type: GrantFiled: October 23, 2017Date of Patent: November 15, 2022Assignees: TOTAL MARKETING SERVICES, DOW GLOBAL TECHNOLOGIES LLCInventors: Nicolas Champagne, Nadjet Khelidj
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Patent number: 11480216Abstract: An aluminum alloy for a slide bearing of the present invention contains: 0 mass % or more and 10.0 mass % or less of Sn and 0 mass % or more and 5.0 mass % or less of Si, 0 mass % or more and 2.0 mass % or less of Cu as a solid-solution strengthening component, at least one of 0.05 mass % or more and 0.35 mass % or less of Cr, 0.05 mass % or more and 1.5 mass % or less of Mn, and 0.05 mass % or more and 0.3 mass % or less of Zr as a precipitation strengthening component, 2.3 mass % or more and 6.0 mass % or less of Ag, a part of which is dissolved to form a solid solution and the rest of which is precipitated, and the balance consisting of unavoidable impurities and Al.Type: GrantFiled: September 19, 2019Date of Patent: October 25, 2022Assignee: TAIHO KOGYO CO., LTD.Inventor: Ryuichi Morioka
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Patent number: 11473031Abstract: An environmentally-improved motor oil blend and related methods for properly lubricating components of an engine and favorably modifying a plastic response of components of the engine, the blend being free of zinc di-alkyl-di-thiophosphates (ZDDP) and free of zinc di-thiophosphate (ZDTP), comprising: a motor oil selected from the motor oil group consisting of Group I, Group II, Group III, Group IV, and Group V motor oils; a motor oil additive comprising alpha-olefins and hydroisomerized hydro-treated severe hydrocracked base oil; ZDDP omitted from the chemical constituents of the motor oil; and ZDTP omitted from the chemical constituents of the motor oil.Type: GrantFiled: September 20, 2020Date of Patent: October 18, 2022Assignee: BESTLINE INTERNATIONAL RESEARCH, INC.Inventor: Ronald J. Sloan
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Patent number: 11473032Abstract: A constant velocity joint having a boot constructed from a thermoplastic polyether ester as the boot material. The boot includes a lubricating grease composition for lubricating the constant velocity joint, the lubricating grease composition comprising calcium lignin sulfonate.Type: GrantFiled: December 11, 2019Date of Patent: October 18, 2022Assignee: FUCHS PETROLUB SEInventors: Thomas Litters, Alexander Liebenau
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Patent number: 11459521Abstract: A lubricant composition having greater than 50 percent by weight of a base oil, a dispersant composition comprising: i) a first dispersant comprising one or more reaction products of at least one polyisobutenyl succinic acid or anhydride having a polyisobutenyl group with a number average molecular weight that is less than or equal to 1300, and at least one polyamine; and ii) a second dispersant comprising one or more reaction products of at least one polyisobutenyl succinic acid or anhydride having a polyisobutenyl group with a number average molecular weight greater than 1300, and at least one polyamine; and at least one ashless antioxidant; and wherein a weight ratio of the second dispersant to the dispersant composition is 0.66:1 to 1:1 or a ratio of the weight percentages of nitrogen contributed by the second dispersant to nitrogen of the dispersant composition is 0.62:1 to 1:1.Type: GrantFiled: June 5, 2018Date of Patent: October 4, 2022Assignee: AFTON CHEMICAL COPORATIONInventor: Paul Ransom
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Patent number: 11454281Abstract: Disclosed herein is a sliding member for an internal-combustion engine of an automobile or the like. The sliding member has excellent sliding properties due to high oleophilicity of its sliding surface achieved by adjusting the surface texture of a resin layer forming the sliding surface, which makes it possible to effectively prevent wear or seizure of the sliding member and a counterpart sliding member thereof. The sliding member includes a resin layer provided on a surface of a base material, in which the resin layer has a surface roughness of 1.05 or more, preferably 1.07 or more. The mean spacing (s) between local peaks of the resin layer may be in the range of 2 ?m or more but 12 ?m or less, but may be preferably in the range of 2 ?m or more but 10 ?m or less. Further, the mean height (Rc) of the resin layer may be in the range of 0.5 ?m or more but 5.0 ?m or less, but may be preferably in the range of 0.5 ?m or more but 3.0 ?m or less.Type: GrantFiled: December 25, 2018Date of Patent: September 27, 2022Assignee: DAIDO METAL COMPANY LTD.Inventors: Kenji Nimura, Erina Yasuda
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Patent number: 11456088Abstract: A composition and method for reducing the coefficient of friction and required pulling force of a wire or cable are provided. A composition of aqueous emulsion is provided that is environmentally friendly, halogen free and solvent free. The composition is compatible with various types of insulating materials and may be applied after the wire or cable is cooled and also by spraying or submerging the wire or cable in a bath. The composition contains lubricating agents that provide lower coefficient of friction for wire or cable installation and continuous wire or cable surface lubrication thereafter.Type: GrantFiled: July 20, 2021Date of Patent: September 27, 2022Assignee: Encore Wire CorporationInventors: William T. Bigbee, Jr., Sheri H. Dahlke, Ronald A. Raedeke, Jason Drew Gillen, Melvin Glenn Debord
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Patent number: 11453836Abstract: The present invention relates to a lubricant comprising a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C1-C22 alkyl (meth)acrylate. It further relates to the liquid ethylene copolymer; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer.Type: GrantFiled: March 14, 2019Date of Patent: September 27, 2022Assignee: BASF SEInventors: Martin Wendker, Ivette Garcia Castro, Jan Strittmatter, Karolin Geyer, Wolfgang Grabarse, Markus Scherer, Rene Koschabek
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Patent number: 11441093Abstract: An aspect of the present invention relates to a lubricant composition containing at least: (A) 50 to 80 mass % of silicone oil represented by formula (1) below, and having a mass-average molecular weight of 900 to 4000, a ratio (C/Si ratio) of carbon to silicon of 3.03 or higher in the structure, and a viscosity index (VI) of 300 or higher; (B) 10 to 49 mass % of hydrocarbon-based lubricant; and (C) 1 to 10 mass % of antioxidant.Type: GrantFiled: March 1, 2019Date of Patent: September 13, 2022Assignee: MORESCO CORPORATIONInventors: Mao Nakagaki, Shingo Maruyama, Kohei Yamashita
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Patent number: 11440867Abstract: A medical lubricant may comprise a base oil. The medical lubricant can be used on a surgical device.Type: GrantFiled: April 19, 2019Date of Patent: September 13, 2022Assignee: KVI LLCInventors: Alan Thomas Barker, Thomas P. Clement