Patents Examined by Prem C. Singh
  • Mixed fleet capable lubricating compositions
    Patent number: 11578287
    Abstract: This disclosure describes lubricating additives and lubricants including such additives suitable for and/or configured for mixed fleet use and, for instance, additives and lubricants that satisfy performance standards for typical spark ignition passenger car lubricants as well as performance standards for lubricants suitable for typical compression ignition heavy duty engine applications.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: February 14, 2023
    Assignee: Afton Chemical Corporation
    Inventors: Nicholas Giles, Abaigeal Ritzenthaler, Leah Donham
  • Macromolecular corrosion (McIn) inhibitors: structures, methods of making and using the same
    Patent number: 11578285
    Abstract: Disclosed are multifunctional compounds represented by structural formula (I): methods of producing compounds represented by structural formula (I) and their use in inhibiting corrosion in corrodible material.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: February 14, 2023
    Assignee: Polnox Corporation
    Inventors: Ashok L. Cholli, Murat Tonga
  • Ethylene-propylene linear copolymers as viscosity modifiers
    Patent number: 11578155
    Abstract: In some embodiments, ethylene-propylene random copolymers as viscosity modifiers were synthesized with pyridyldiamido catalyst systems and a chain transfer agent. In some embodiments, the present disclosure provides for ethylene-propylene random copolymers having an ethylene content between about 45 wt % and about 55 wt %. In some embodiments, the ethylene-propylene random copolymer is used as a viscosity modifier in a lubricating composition and a fuel composition.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: February 14, 2023
    Assignee: EXXONMOBIL CHEMICAL PATENTS INC.
    Inventors: Jingwen Zhang, John R. Hagadorn, Rainer Kolb, Jo Ann M. Canich, Maksim Shivokhin, Peijun Jiang, Britni J. Brobey
  • Process for hydrocracking a hydrocarbon feed stream
    Patent number: 11572515
    Abstract: A hydrocracking process is disclosed. The hydrocracking process comprises hydrocracking a hydrocarbon feed stream in a hydrocracking reactor in the presence of a hydrogen stream and a hydrocracking catalyst to produce a hydrocracked effluent stream. The hydrocracked effluent stream is separated in a separator to provide a vapor hydrocracked stream and a liquid hydrocracked stream. The liquid hydrocracked stream is fractionated to provide a naphtha stream, a kerosene stream having a T90 temperature of about 204° C. (399° F.) to about 238° C. (460° F.), a diesel stream having a T90 temperature of about 360° C. (680° F.) to about 383° C. (721° F.) and an unconverted oil stream. The kerosene stream, the unconverted oil stream, and a portion of the diesel stream is recycled to the hydrocracking reactor for hydrocracking.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: February 7, 2023
    Assignee: UOP LLC
    Inventors: Massimo Sangalli, John A. Petri, Magaly Estremera, Yoga R Ayar
  • Dinuclear molybdenum complex and use of same in lubricating compositions
    Patent number: 11572522
    Abstract: The present invention relates to a dinuclear molybdenum complex with ligands selected from fatty tertiary amines of formula (I): R—N[(CH2)nR2][(CH2)nR3]??(I) wherein R represents a linear or branched alkyl comprising 3 to 30 carbon atoms, preferably 3 to 20, advantageously 7 to 17 carbon atoms; n, identical or different, represents 2 or 3; R2 and R3, identical or different, represent an O, OR, NR?2, COOR?, or COO group, where R?, identical or different, represents a hydrogen atom or an alkaline or alkaline earth metal, preferably R? is H, preferably R2 and R3, identical or different, represent an OH or NH2 group.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: February 7, 2023
    Assignees: TOTAL MARKETING SERVICES, Centre national de la recherche scientifique, ECOLE CENTRALE DE LYON, Université Claude Bernard Lyon 1
    Inventors: Benoît Thiebaut, Catherine Charrin, Camella Oumahi, Maria Isabel De Barros Bouchet, Pavel Afanasiev
  • Plunger lubricant for die casting and method of applying the same
    Patent number: 11566201
    Abstract: A plunger lubricant for die casting includes a component (a), a component (b), a component (c), and water. The component (a) is one or two or more compounds selected from among mineral oils, synthetic hydrocarbons, and fatty acid esters. The component (b) is one or two or more compounds selected from among alkali metal salts of higher fatty acids or alkali metal salts of aliphatic hydroxy acids. The component (c) is an alkali metal salt of an oxoacid or polyoxoacid that is able to be dehydrated and condensed.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: January 31, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, Nippon Quaker Chemical, Ltd.
    Inventors: Soichiro Ishida, Eiji Tabata, Yuichi Furukawa, Katsumi Hongyo, Toshikazu Ikeda
  • Lubricants with improved seal compatibility
    Patent number: 11566199
    Abstract: The present invention relates to lubricating compositions and particularly gear oil compositions that include a specific class of substituted triazoles, where the substituted triazole includes at least one hydrocarbyl group linked to one of the nitrogen atoms in the triazole ring. Such compositions provide surprisingly good seal compatibility compared to compositions with other triazoles and/or alternative additives.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: January 31, 2023
    Assignee: The Lubrizol Corporation
    Inventor: James N. Vinci
  • Oil soluble taggants
    Patent number: 11555790
    Abstract: A process for detecting oil or lubricant contamination in the production of an article by adding a Stokes-shifting taggant to an oil or lubricant of a machine utilized to produce the article or a component thereof, irradiating the articles produced with a first wavelength of radiation, and monitoring the articles for emission of radiation at a second wavelength. The taggant can be in the form of a composition containing a Stokes-shifting taggant, which absorbs radiation at a first wavelength and emits radiation at a second wavelength, different from said first wavelength, dissolved or dispersed in an oil or lubricant.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: January 17, 2023
    Assignee: Altria Client Services LLC
    Inventor: William James Faenza
  • Refrigerator oil and hydraulic fluid composition for refrigerators
    Patent number: 11549077
    Abstract: A refrigerating machine oil containing: a lubricating base oil; and a compound represented by the following formula (1): wherein R1 and R2 each independently represent a monovalent hydrocarbon group, R3 represents a divalent hydrocarbon group, and R4 represents hydrogen atom or a monovalent hydrocarbon group, and the refrigerating machine oil having a kinematic viscosity at 100° C. of 0.5 mm2/s or more and 2.5 mm2/s or less.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: January 10, 2023
    Assignee: ENEOS CORPORATION
    Inventors: Yohei Shono, Fumiyuki Nara, Takeshi Okido, Hidetoshi Ogata
  • Dewaxing using a molecular sieve catalyst
    Patent number: 11542446
    Abstract: Methods are provided for using a molecular sieve catalyst for dewaxing formed using a synthesis mixture comprising a morphology modifier. The catalyst may be used, for example, for production of a lubricant base stock. For example, ZSM-48 crystals formed using the morphology modifier (and/or formulated catalysts made using such crystals) can have an increased activity and/or can provide an improved yield during catalytic dewaxing of lubricant base stocks.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: January 3, 2023
    Assignee: Exxon Mobil Technology and Engineering Company
    Inventors: Preeti Kamakoti, Scott J. Weigel, Stephen J. McCarthy, Shifang L. Luo, Sina Sartipi, Martine Dictus, Marc H. Anthonis, Helge Jaensch
  • Base oil or lubricant additive
    Patent number: 11542454
    Abstract: The present invention is toward a base oil or lubricant additives, methods of using the same, lubricant compositions including the same, and methods of forming the lubricant compositions. A base oil or lubricant additive has Structure I or Structure II as described herein.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: January 3, 2023
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: George A. Kraus, Kyle Podolak, Derek Lee White, Sriram Sundararajan
  • Curable polysiloxane compositions and slippery materials and coatings and articles made therefrom
    Patent number: 11542409
    Abstract: The present teachings generally provide curable polysiloxane compositions including a base resin including a surface active polymer. Articles of manufacture including the curable polysiloxane compositions and slippery coatings and materials also are provided. The compositions may be used to provide slippery, lubricious, or repellent materials and coatings and may provide anti-fouling function. The compositions can provide anti-fouling or foul-release function on open surfaces, internal surfaces, membranes; to provide pinning free or low contact angle hysteresis surfaces; to provide homogeneous interface to suppress nucleation; to provide a barrier layer such as anti-corrosion; to provide anti-stain, anti-smudge, anti-fingerprint, anti-soil function.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: January 3, 2023
    Assignee: Adaptive Surface Technologies, Inc.
    Inventors: Philseok Kim, Teluka Pasan Galhenage, Joseph Lomakin
  • Lubricating oil composition
    Patent number: 11535808
    Abstract: A lubricating oil composition may include a base oil (A), a neutral phosphorus compound (B), an acidic phosphorus compound (C), a sulfur compound (D) and a metal salt (E) including a metal sulfonate, a metal salicylate, and/or a metal phenate, in which a content of the acidic phosphorus compound (C) in terms of phosphorus atoms is 10 to 180 ppm by mass based on the total amount of the lubricating oil composition, a content of the sulfur compound (D) in terms of sulfur atoms is 10 to 1000 ppm by mass based on the total amount of the lubricating oil composition, and a content of the metal salt (E) in terms of metal atoms is 5 to 180 ppm by mass based on the total amount of the lubricating oil composition.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: December 27, 2022
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Kazushi Tamura
  • Removing aromatic compounds from a hydrocarbon fluid
    Patent number: 11535810
    Abstract: A method for removing aromatic compounds from a hydrocarbon fluid comprises contacting the hydrocarbon fluid with a solid-phase polymeric material. The solid-phase polymeric material comprises a cross-linked polymer which contains aromatic groups. The method may be used to prevent the build-up of sludge and soot in a lubricant system in an internal combustion engine. A polymer bead comprising a solid-phase polymeric material is also provided.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: December 27, 2022
    Assignee: Castrol Limited
    Inventors: Peter Cormack, Timothy McCabe, James Edward Moss, Richard Pearson, John Michael Redshaw, Kevin Richard West
  • Organosiloxane-based surface treatments for enhancing the adhesion and lubricity of metal surfaces
    Patent number: 11530362
    Abstract: Compositions for treating a substrate to provide increased lubricity to portions of the substrate surface that come into contact with the surface of a mating component are provided. The treated substrates provide improved lubricity, while maintaining adhesion between the surface of the substrate and an overlying polymer coating and imparting corrosion resistance to the substrate surface. The compositions include a silanol coupling agent in combination with lubricating particles, and an acid, which are dissolved or dispersed in a mixture of organic solvent and water.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: December 20, 2022
    Assignee: The Boeing Company
    Inventors: Daniel W. Huff, James A. Moore, Justin J. Robertson, Gregory T. Strawder
  • Process for producing polymers
    Patent number: 11525041
    Abstract: A process for the synthesis of a granular polymer, the process comprising (a) providing an active polymerization mixture that includes polymer, monomer, catalyst and optional solvent; (b) introducing a hydroxy-containing diaryl acetyl compound to the active polymerization mixture to thereby provide an inactive polymer mixture; (c) separating the polymer solution into a first stream and a second stream, where the first stream includes the polymer and the hydroxy-containing diaryl acetyl compound, and the second stream includes the monomer and the optional solvent; and (d) fabricating granules from the first stream.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: December 13, 2022
    Assignee: EXXONMOBIL CHEMICALS PATENTS INC.
    Inventors: Jay L. Reimers, Yifeng Hong, Anthony J. Dias, John R. Hagadorn
  • Composition for cooling and lubricating a propulsion system of an electric or hybrid vehicle
    Patent number: 11525099
    Abstract: The present invention relates to the use, for cooling and lubricating a propulsion system of an electric or hybrid vehicle, of a composition comprising: (i) at least one base oil; and (ii) at least one diester of formula Ra—C(O)—O—([C((R)2)]n—O)s—C(O)—Rb (I), different than the base oil (i). The invention also relates to a method of cooling and lubricating a propulsion system of an electric or hybrid vehicle comprising at least one step of bringing at least one mechanical component of said system into contact with a composition as defined above.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: December 13, 2022
    Assignee: Total Marketing Services
    Inventor: Nicolas Champagne
  • Lithium-based grease and preparation method thereof
    Patent number: 11518953
    Abstract: A lithium-based grease and the preparation method thereof are provided. The raw materials for preparing the lithium-based grease include in parts by weight: 75-88 parts of base oil, 0.5-2.5 parts of antiwear agent, 0.1-1.5 parts of antirust agent, 0.1-1.5 parts of antioxidant, 5-25 parts of lubricant, 5-15 parts of thickening agent, and 0.6-2.0 parts of saponifying agent. The raw materials also include hydroxyl compound-containing modified graphene containing quaternary ammonium salt or aromatic ring. The grease has good colloid stability and mechanical stability, can greatly improve the antiwear property. More than that, the grease has excellent oxidation resistance, and can significantly shorten the reaction time of the saponification, reduce the reaction temperature of the saponification.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: December 6, 2022
    Assignee: Guangxi LiuGong Machinery Co., Ltd.
    Inventors: Bo Lin, Jinqiong Luo, Hao Liang, Li Zhang, Mingzhi Lin, Guoqing Hou
  • Dispersion of hexamine in non-aqueous glycerine
    Patent number: 11518947
    Abstract: The present disclosure generally relates to dispersions useful for scavenging hydrogen sulfide. The dispersions may be anhydrous and contain a solvent and a hydrogen sulfide scavenging compound. The hydrogen sulfide scavenging compound may be hexamine, for example. The solvent may be a C2-8 polyol, such as glycerin.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: December 6, 2022
    Assignee: ECOLAB USA Inc.
    Inventor: Kim R. Solomon
  • Zinc-free lubricating composition
    Patent number: 11518954
    Abstract: The invention is directed to a zinc-free lubricating composition for an internal combustion engine containing a phosphorus anti-wear agent, an ashless antioxidant, and a metal-free basic detergent. The lubricating composition provides wear protection, deposit control, and improved acid control with reduced levels of metal-containing additives.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: December 6, 2022
    Assignee: The Lubrizol Corporation
    Inventors: Ewan E. Delbridge, Patrick E. Mosier