With Lubricants, Or Warning, Stabilizing Or Anti-corrosion Agents Or Persistent Gases Patents (Class 252/68)
  • Patent number: 11028300
    Abstract: A refrigerant composition includes R125 (pentafluoroethane), R134a (1,1,1,2-tetrafluoroethane), R600a (isobutane) and a polyol ester (POE) lubricant. In one exemplary embodiment, the refrigerant includes about 53-57 wt % R125, about 40-44 wt % R134a, about 1-5 wt % R600a and no more than about 1 wt % POE. In another embodiment, the refrigerant composition includes about 54-56% R125, about 41-43 wt % R134a, about 2-4% R600a and about 0.3-0.7 wt % POE. In yet another embodiment, the refrigerant composition includes about 54.63 wt % R125, about 41.72 wt % R134a, about 2.98 wt % R600a and about 0.67 wt % POE. Manufacturing the refrigerant composition includes charging a vessel with about 53-57 wt % R125, about 44 wt % R134a, about 1-5 wt % R600a to form as 100 wt % charge, and then injecting no more than about 1 wt % POE.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: June 8, 2021
    Inventors: David L. Couchot, Sankara N. Ramanan
  • Patent number: 11008496
    Abstract: This pertains to the technical field of lubricants, and particularly relates to a composition for preparing a wear-resistant drilling fluid lubricant, a preparation method of the wear-resistant drilling fluid lubricant and a drilling fluid. Vegetable oil, nanometer calcium borate, an ether compound and an amine compound may be used as raw materials to prepare drilling fluid lubricant with excellent abrasion resistance by reasonably controlling dosages of the raw materials. The lubricant provided can improve wear resistance, lubricating property, and high temperature resistance of bentonite slurry and water-based drilling fluid.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: May 18, 2021
    Assignees: YANGTZE UNIVERSITY, JINGZHOU JIAHUA TECHNOLOGY CO., LTD., CNPC RESEARCH INSTITUTE OF SAFETY AND ENVIRONMENTAL TECHNOLOGY CO., LTD.
    Inventors: Mingbiao Xu, Fuchang You, Xingchun Li, Jiao Wu, Shanshan Hou, Man Shu
  • Patent number: 10988653
    Abstract: Provided is a lubricating oil composition for a refrigerator which uses a base oil including as the main component at least one kind of oxygen-containing compounds selected from polyoxyalkylene glycols, polyvinyl ethers, copolymers of poly(oxy)alkylene glycols or monoethers thereof and polyvinyl ethers, polyol esters, and polycarbonates. The lubricating oil composition for a refrigerator is used for a refrigerator that uses, as a refrigerant, a fluorine-containing organic compound, which is a refrigerant applicable to current car air conditioner systems or the like and has a specific polar structure, and has favorable sealing property, a low coefficient of friction factor in a sliding part, and excellent stability as well as excellent compatibility with the refrigerant.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: April 27, 2021
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Masato Kaneko
  • Patent number: 10988651
    Abstract: Embodiments are described herein to provide refrigerant and/or refrigerant composition that is suitable for providing lubrication to, for example, moving parts of a chiller system. Embodiments are also described herein to provide an additive, such as a corrosion inhibitor and/or stabilizers, that can be added to the refrigerant to form refrigerant compositions that is suitable for providing lubrication to, for example, moving parts of a chiller system.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: April 27, 2021
    Assignee: TRANE INTERNATIONAL INC.
    Inventor: Stephen Anthony Kujak
  • Patent number: 10976079
    Abstract: A compressor including a refrigerant and a lubricant, wherein the lubricant comprises at least one compound selected from the group consisting of a mono-tertiary amine, a di-tertiary amine, a tri-tertiary amine, and a tetra-tertiary amine.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: April 13, 2021
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Louis Rebrovic, Kyaw Wynn
  • Patent number: 10954467
    Abstract: The invention relates to the use of a composition comprising a polyol ester-based lubricant and a refrigerant F comprising at least one tetrafluoropropene and at least one hydrofluorocarbon, in a heat transfer system containing a vapour compression circuit comprising an oil separator.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: March 23, 2021
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • Patent number: 10899690
    Abstract: The invention relates to a method for purifying 1,1,1,2,2-pentafluoropropane (245cb) using a first composition comprising 1,1,1,2,2-pentafluoropropane and at least one of the compounds selected from the group consisting of 1,1-difluoroethane (152a), 1,1,1,2-tetrafluoroethane (134a), trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), cis-1,3,3,3-tetrafluoro-1-propene (1234ze-Z), trans-1,2,3,3,3-pentafluoropropene (1225ye-E), cis-1,2,3,3,3-10 pentafluoropropene (1225ye-Z) and 3,3,3-trifluoropropene (1243zf), said method comprising the steps of: a) bringing said first composition into contact with at least one organic extraction agent in order to form a second composition; b) extractive distillation of said second composition in order to form i) a third composition comprising said organic extraction agent and said at least one of the compounds selected from the group consisting of 1,1-difluoroethane (152a), 1,1,1,2-tetrafluoroethane (134a), trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E), cis-1,3,3,3-tetrafluoro-1-p
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: January 26, 2021
    Assignee: Arkema France
    Inventors: Abdelatif Baba-Ahmed, Bertrand Collier, Dominique Deur-Bert, Laurent Wendlinger
  • Patent number: 10815174
    Abstract: A storage method of HCFO-1233zd (Z) according to an embodiment of the present invention, includes using a storage container having a liquid-contact portion thereof. The liquid-contact portion is formed of a material selected from the group consisting of epoxy-phenolic resin, phenolic resin, phenolic-butyral resin, stainless steel, iron phosphate, zinc phosphate and glass.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: October 27, 2020
    Assignee: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Naoto Takada, Masahiko Tani, Hideaki Imura, Koji Ueda, Yoshio Nishiguchi, Fuyuhiko Sakyu
  • Patent number: 10781152
    Abstract: Various compositions, including particularly aerosol compositions, containing fluorinated olefins, including particularly tetra- and penta-fluorpropenes, in a variety of applications are disclosed.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: September 22, 2020
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Rajiv R. Singh, Hang T. Pham, Ian Shankland
  • Patent number: 10759920
    Abstract: The present disclosure relates to compositions comprising E-1,1,1,4,4,4-hexafluoro-2-butene and additional compounds that may be useful as refrigerants, heat transfer compositions, aerosol propellants, foaming agents, blowing agents, solvents, cleaning agents, carrier fluids, displacement drying agents, buffing abrasion agents, polymerization media, expansion agents for polyolefins and polyurethane, gaseous dielectrics, power cycle working fluids, extinguishing agents, and fire suppression agents in liquid or vapor form, and in methods for detecting leaks.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: September 1, 2020
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Mario Joseph Nappa, Xuehui Sun, Ivan Sergeyevich Baldychev, Sheng Peng, Konstantinos Kontomaris, Barbara Haviland Minor, Joseph Anthony Creazzo
  • Patent number: 10731065
    Abstract: The present invention provides a haloolefin-based composition comprising a highly-stable haloolefin in which decomposition and oxidization are inhibited, and the haloolefin-based composition being used for at least one application selected from the group consisting of heat transfer media, refrigerants, foaming agents, solvents, cleaning agents, propellants, and fire extinguishers. The present invention relates to a haloolefin-based composition comprising a haloolefin and water and being used for at least one application selected from the group consisting of heat transfer media, refrigerants, foaming agents, solvents, cleaning agents, propellants, and fire extinguishers. The haloolefin-based composition comprising a haloolefin and water is used for at least one application selected from the group consisting of heat transfer media, refrigerants, foaming agents, solvents, cleaning agents, propellants, and fire extinguishers.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: August 4, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuhiro Takahashi, Tatsumi Tsuchiya, Yasufu Yamada
  • Patent number: 10723926
    Abstract: The present invention provides a working fluid composition for a refrigerating machine containing: a refrigerating machine oil containing: a first ester that is a polyol ester of dipentaerythritol and at least one fatty acid selected from fatty acids having 4 to 10 carbon atoms, and has a kinematic viscosity at 100° C. of 7.0 mm2/s or more; and a second ester that is a complex ester of a polyhydric alcohol containing at least one selected from neopentyl glycol, trimethylolpropane and pentaerythritol, a polybasic acid having 6 to 12 carbon atoms, and a monohydric alcohol having 4 to 18 carbon atoms or a fatty acid having 4 to 18 carbon atoms; and a refrigerant containing difluoromethane.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: July 28, 2020
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Takeshi Okido, Hiroko Shimpo, Yuya Mizutani, Hidetoshi Ogata
  • Patent number: 10705582
    Abstract: A freezer power calculation unit calculates power consumption Wc of a freezer, based on a heat exchanging amount Q of an electronic device and a performance coefficient COP_c of the freezer. An apparatus performance coefficient calculation unit calculates an apparatus performance coefficient ACOP, based on a calorific value Q of the electronic device, Wc, and power consumption Wf of an air conditioning blower unit. Note that the apparatus performance coefficient ACOP is a performance coefficient of an apparatus including an evaporator, a condenser, a heat exchanger, the freezer, and the air conditioning blower unit. A blower rotational speed control unit controls a rotational speed r of the air conditioning blower unit, based on the apparatus performance coefficient ACOP. A coolant temperature control unit controls a first coolant temperature Tin being a temperature of coolant COO flowing from the freezer, based on the apparatus performance coefficient ACOP.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: July 7, 2020
    Assignee: NEC CORPORATION
    Inventor: Masanori Sato
  • Patent number: 10683443
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: June 16, 2020
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Patent number: 10669504
    Abstract: The invention relates to a seal swell agent which is a substituted sulfonyldibenzene compound, and lubricating compositions containing the seal swell agent. The substituents on the benzene rings may be hydrocarbyl groups of 4 to 20 carbon atoms or alkylene groups of 1-2 carbon atoms with further functional groups.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 2, 2020
    Assignee: The Lubrizol Corporation
    Inventors: Mariam Shamszad, Paul E. Adams, Mahmud M. Hussain, Peter Miatt
  • Patent number: 10662392
    Abstract: The lubricating oil composition for a refrigerator of the present invention is used with a refrigerant containing carbon dioxide, and contains a base oil (A) containing a polyoxyalkylene glycol as a major component, and an alcohol (B) having at least one hydroxy group, in which a total number of the hydroxy group and an ether bond is from 2 to 3 (provided that the number of an ether bond may be 0).
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 26, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: So Nakajima, Masato Kaneko, Tetsuhiko Fukanuma, Ryo Matsubara, Yuki Yokoi
  • Patent number: 10655039
    Abstract: A refrigerant composition for an HVACR system that includes R1123 refrigerant, R32 refrigerant, and CF3I. The refrigerant composition having a capacity greater than 85% of a capacity of R410 or a capacity of R32. A method of making a refrigerant composition for a HVACR system is also disclosed. The method includes mixing an amount of R1123, an amount of R32, and an amount of CF3I. A method of retrofitting a refrigerant composition that results in the refrigerant composition is disclosed.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: May 19, 2020
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Kenneth J. Schultz, Stephen A. Kujak
  • Patent number: 10626344
    Abstract: The present invention provides a refrigerating machine oil comprising a base oil; a sulfide compound; and an orthophosphoric acid ester, wherein a content of the sulfide compound is 0.01 to 2.0% by mass and a content of the orthophosphoric acid ester is 0.1 to 5.0% by mass, based on a total amount of the refrigerating machine oil, and the refrigerating machine oil having a kinematic viscosity at 40° C. of 3 to 500 mm2/s.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: April 21, 2020
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Masanori Saito, Hiroko Shimpo, Kuniko Adegawa
  • Patent number: 10612825
    Abstract: Compositions, methods, systems, and applications herein are directed to lubricant blends that balance solubility and viscosity of a refrigerant, where in some cases the lubricant blends herein help reduce solubility of a refrigerant. A lubricant blend includes a mixture of two or more different types of lubricants to reduce refrigerant solubility.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: April 7, 2020
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Julie A. Majurin, Daniel A. Strange, Daryl Dean Steinke
  • Patent number: 10604689
    Abstract: To provide a working medium for heat cycle, of which combustibility is suppressed, which has less influence over the ozone layer, which has less influence over global warming and which provides a heat cycle system excellent in the cycle performance (efficiency and capacity), and a heat cycle system, of which the safety is secured, and which is excellent in the cycle performance (efficiency and capacity). A working medium for heat cycle comprising 1-chloro-2,3,3,3-tetrafluoropropene is employed for a heat cycle system (such as a Rankine cycle system, a heat pump cycle system, a refrigerating cycle system 10 or a heat transport system).
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: March 31, 2020
    Assignee: AGC Inc.
    Inventor: Masato Fukushima
  • Patent number: 10557103
    Abstract: The refrigerator lubricating oil of the present invention contains: a base oil containing, as a major component, a polyol ester (A) of a fatty acid (a1) that is a fatty acid having a number of carbon atoms of from 3 to 18 and a polyol (a2) that is selected from neopentyl glycol, trimethylolethane, trimethylolpropane, trimethylolbutane, pentaerythritol, and dipentaerythritol; and a disulfide and/or trisulfide compound (B), and the disulfide and/or trisulfide compound (B) is blended in an amount of from 30 to 10,000 ppm by mass in terms of sulfur equivalent based on the total amount of the refrigerator lubricating oil.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: February 11, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masato Kaneko, Takahiro Hoshida
  • Patent number: 10519954
    Abstract: A compressor according to the present disclosure includes a shell, a main bearing housing disposed within the shell, a driveshaft supported by the main bearing housing, a non-orbiting scroll member coupled to the main bearing housing, and an orbiting scroll member rotatably coupled to the driveshaft and meshingly engaged with the non-orbiting scroll member. The non-orbiting scroll member forms a suction pocket and at least one circumferential groove. The orbiting scroll member forms a lubricant passage that delivers lubricant from a lubricant source directly to at least one of the suction pocket and the at least one circumferential groove.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: December 31, 2019
    Assignee: Emerson Climate Technologies, Inc.
    Inventors: Jeffrey L. Berning, Robert C. Stover
  • Patent number: 10501667
    Abstract: To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. A composition for a heat cycle system, which comprises a working fluid for heat cycle containing trifluoroethylene, and a stabilizer for preventing deterioration of the working fluid for heat cycle, such as an oxidation resistance-improving agent, a heat resistance-improving agent or a metal deactivator, and a heat cycle system employing the composition for a heat cycle system.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: December 10, 2019
    Assignee: AGC Inc.
    Inventors: Masato Fukushima, Hiroaki Mitsuoka, Mai Tasaka
  • Patent number: 10494585
    Abstract: The present invention provides a refrigerating machine oil comprising: an ester of a polyhydric alcohol and a fatty acid as a base oil; and an ether compound of a polyhydric alcohol, the refrigerating machine oil being used with an unsaturated hydrofluorocarbon refrigerant.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: December 3, 2019
    Assignee: JXTG Nippon Oil & Energy Corporation
    Inventors: Akira Tada, Ken Sawada
  • Patent number: 10479746
    Abstract: The present invention concerns a method for purifying 2,3,3,3-tetrafluoro-1-propene (1234yf) from a first composition comprising 2,3,3,3-tetrafluoro-1-propene and at least one of the compounds chosen from the group consisting of 1,1-difluoroethane (152a), chloropentafluoroethane (115), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E) said method comprising the steps consisting of: a) bringing said first composition into contact with at least one organic extractant in order to form a second composition; b) extractive distillation of said second composition in order to form (i) a third composition comprising said organic extractant and said at least one of the compounds chosen from the group consisting of 1,1-difluoroethane (152a) chloropentafluoroethane (115), and trans-1,3,3,3-tetrafluoro-1-propene (1234ze-E); and ii) a stream comprising 2,3,3,3-tetrafluoro-1-propene. The invention also concerns a method for producing and purifying 2,3,3,3-tetrafluoro-1-propene.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 19, 2019
    Assignee: ARKEMA FRANCE
    Inventors: Abdelatif Baba-Ahmed, Bertrand Collier, Dominique Deur-Bert, Laurent Wendlinger
  • Patent number: 10480495
    Abstract: A refrigeration system includes compressor and a duct assembly that includes a duct frame and a sensor unit. The duct frame provides a path for evaporating refrigerant from a lubricant sump of the compressor. The sensor unit obtains temperature measurements of the refrigerant and a lubricant within the lubricant sump and heats and evaporates the refrigerant located within the duct frame of the duct assembly. A control module receives temperature measurements from the sensor unit, determines a presence of liquid refrigerant within the lubricant sump of the compressor in response to a determination that an actual temperature change does not correspond with an expected temperature change for the lubricant, and in response to a determination that the actual temperature change corresponds with the expected temperature change for the lubricant, operates the compressor.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: November 19, 2019
    Assignee: Emerson Climate Technologies, Inc.
    Inventor: Michael R. Munroe
  • Patent number: 10464042
    Abstract: The invention relates to an adsorbent article. The adsorbent article contains zeolitic particles which include at least one zeolitic adsorbent. The zeolitic particles are immobilized with at least one resin. According to one embodiment, the resin is in the form of particles, which can be melted to form bridges at points of contact between the zeolitic particles, thus immobilizing the zeolitic particles. The average size of the zeolitic particles can be between 0.03 mm and 3 mm. The zeolitic particles contain at least one zeolite and the zeolite content of the article is at least 60 weight percent, based on the weight of the article. The invention also relates to a method for separating a fluid from another fluid or from impurities, by contacting the fluid with the adsorbent article.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: November 5, 2019
    Assignee: Arkema France
    Inventors: Sean Michael Stabler, Serge Nicholas, Guillaume Ortiz, Cécile Lutz, Stéphane Kieger
  • Patent number: 10458286
    Abstract: A method for converting heat from a heat source to mechanical energy is provided. The method comprises heating a working fluid E-1,3,3,3-tetrafluoropropene and at least one compound selected from 1,1,1,2-tetrafluoroethane and 1,1,2,2-tetrafluoroethane using heat supplied from the heat source; and expanding the heated working fluid to lower the pressure of the working fluid and generate mechanical energy as the pressure of the working fluid is lowered. Additionally, a power cycle apparatus containing a working fluid to convert heat to mechanical energy is provided. The apparatus contains a working fluid comprising E-1,3,3,3-tetrafluoropropene and at least one compound selected from 1,1,1,2-tetrafluoroethane and 1,1,2,2-tetrafluoroethane. A working fluid is provided comprising an azeotropic or azeotrope-like combination of E-1,3,3,3-tetrafluoropropene, 1,1,2,2-tetrafluoroethane and 1,1,2,2-tetrafluoroethane.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: October 29, 2019
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventor: Konstantinos Kontomaris
  • Patent number: 10414962
    Abstract: The working fluid composition for a refrigerating machine of the present invention comprises a refrigerant comprising a first refrigerant component and a second refrigerant component, and having a global warming potential (GWP) of 500 or less, wherein the first refrigerant component is at least one selected from difluoromethane and tetrafluoropropene, and the second refrigerant component is at least one selected from carbon dioxide and a hydrocarbon having 3 to 4 carbon atoms; and a refrigerating machine oil comprising at least one selected from a polyol ester, a polyvinyl ether and a polyalkylene glycol compound as a base oil, wherein a carbon/oxygen molar ratio of the base oil is 2.5 or more and 5.8 or less.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: September 17, 2019
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Masanori Saito, Takeshi Okido, Souichirou Konno, Kuniko Adegawa
  • Patent number: 10393391
    Abstract: A refrigeration cycle apparatus includes refrigerant circuits in which a high pressure shell compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger are connected; a mixed refrigerant made up of a mixture of 1,1,2-trifluoroethylene, difluoromethane, and 2,3,3,3-tetrafluoropropene and configured to circulate through the refrigerant circuits, the mixed refrigerant containing less than 50 wt % of 1,2,2-trifluoroetylene and a mixing ratio of difluoromethane being between 0.7 times and two times (both inclusive) that of 1,2,2-trifluoroetylene in terms of weight ratio, in a state before the mixed refrigerant is enclosed in the refrigerant circuits; and a refrigerating machine oil enclosed in the refrigerant circuits and prepared such that difluoromethane is least soluble in the refrigerating machine oil.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: August 27, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventor: Hideaki Maeyama
  • Patent number: 10392546
    Abstract: A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid has a low global warming potential and can replace R410A. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and a kinematic viscosity at 40° C. of from 5 to 200 mm2/s and a kinematic viscosity at 100° C. of from 2 to 30 mm2/s.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: August 27, 2019
    Assignee: AGC Inc.
    Inventors: Masato Fukushima, Hiroaki Mitsuoka, Mai Tasaka, Daisuke Shirakawa, Hirokazu Takagi, Takeaki Arai
  • Patent number: 10364384
    Abstract: To provide a composition for a heat cycle system comprising trifluoroethylene (HFO-1123), which has a low global warming potential and excellent cycle performance of HFO-1123 and which has high durability, and a heat cycle system employing the composition, which has less influence over global warming and has both high cycle performance and durability. A composition for a heat cycle system, which comprises a working fluid for heat cycle containing trifluoroethylene, and a radical scavenger, and a heat cycle system employing the composition for a heat cycle system.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: July 30, 2019
    Assignee: AGC Inc.
    Inventor: Hidekazu Okamoto
  • Patent number: 10364402
    Abstract: The disclosed technology provides a lubricating composition comprising an oil of lubricating viscosity and 0.01 wt % to 10 wt % of an oxyalkylated aromatic polyol compound, wherein the aromatic compound has at least one alkoxy group represented by —OR1 group, R1 is hydroxyalkyl, or a (poly)ether group, and either: at least one hydroxyl group, or at least one alkoxy group represented by —OR1 group, where R1 is alkyl, or a (poly)ether group, or at least one oxyalkyl group represented by —OR1, where R1 is hydroxyalkyl or a (poly)ether group. The disclosed technology further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The disclosed technology further relates to the use of the oxyalkylated aromatic polyol compound in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: July 30, 2019
    Assignee: The Lubrizol Corporation
    Inventors: Kamalakumari Kunchithapatham Salem, David J. Moreton, Mohamed G. Fahmy, Gary M. Walker, James P. Roski, Yanshi Zhang, Adam Cox, W. Preston Barnes, Ewan E. Delbridge
  • Patent number: 10358590
    Abstract: Provided is a lubricating oil composition for a refrigerator which uses a base oil including as the main component at least one kind of oxygen-containing compounds selected from polyoxyalkylene glycols, polyvinyl ethers, copolymers of poly(oxy)alkylene glycols or monoethers thereof and polyvinyl ethers, polyol esters, and polycarbonates. The lubricating oil composition for a refrigerator is used for a refrigerator that uses, as a refrigerant, a fluorine-containing organic compound, which is a refrigerant applicable to current car air conditioner systems or the like and has a specific polar structure, and has favorable sealing property, a low coefficient of friction factor in a sliding part, and excellent stability as well as excellent compatibility with the refrigerant.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: July 23, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Masato Kaneko
  • Patent number: 10344237
    Abstract: The present disclosure provides a system and method for odorizing natural gas flowing through a distribution pipeline. The system includes a bypass line adjacent to a distribution pipeline, wherein bypass gas flows through the bypass line and an odorant tank connected to the bypass line, and into the distribution pipeline; a high-flow control valve and a low-flow control valve in the bypass line, wherein bypass gas flows through the odorant tank into the distribution pipeline when the high-flow control valve or the low-flow control valve is open; and a programmable logic controller connected to the high-flow and low flow control valve; wherein the programmable logic controller opens the high-flow or low-flow control valve for a predetermined dwell time proportional to an amount of bypass gas needed to odorize gas in the distribution pipeline each time that a preselected quantity of gas flows through the distribution pipeline.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: July 9, 2019
    Assignee: Welker, Inc.
    Inventors: Kyle Welker, Wade Williams, Paul Minier
  • Patent number: 10330364
    Abstract: A system and method for retrofitting a refrigeration system containing an HCFC refrigerant and a compatible lubricant, with an HFC refrigerant, comprising providing a transport container containing a mixture of a miscible lubricant and the HFC refrigerant, removing the HCFC refrigerant from the refrigeration system while maintaining at least a portion of a lubricant immiscible with the HFC refrigerant, and charging the refrigeration system with the mixture. The polyol ester lubricant may be present in a range exceeding about 5-15% by weight, e.g., 8%.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: June 25, 2019
    Assignee: Hudson Technologies, Inc.
    Inventor: Charles Harkins
  • Patent number: 10323203
    Abstract: This disclosure provides low viscosity, low volatility aryl ether compounds represented by the formula: This disclosure also provides processes for producing the aryl ether compounds, lubricating oil basestocks and lubricating oils containing one or more of the aryl ether compounds, and a method for improving one or more of solubility and dispersancy of polar additives and/or sludge in a lubricating oil by using as the lubricating oil a formulated oil containing one or more of the aryl ether compounds.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: June 18, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Abhimanyu O. Patil, Satish Bodige
  • Patent number: 10323204
    Abstract: This disclosure provides low viscosity, low volatility aryl ether compounds represented by formula (1): and represented by formula (2): wherein R1 is the same or different and is a linear or branched alkyl group having from 1 to 20 carbon atoms; R2 is the same or different and is hydrogen or an alkyl group having from 1 to 4 carbon atoms; and n is the same or different and is a value from 0 to 8. This disclosure also provides processes for producing the aryl ether compounds, lubricating oil basestocks and lubricating oils containing one or more of the aryl ether compounds, and a method for improving one or more of solubility and dispersancy of polar additives and/or sludge in a lubricating oil by using as the lubricating oil a formulated oil containing one or more of the aryl ether compounds.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: June 18, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Abhimanyu O. Patil, Satish Bodige
  • Patent number: 10316232
    Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: June 11, 2019
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Patent number: 10273394
    Abstract: A working fluid composition for a refrigerating machine of the invention comprises a refrigerant comprising difluoromethane and an unsaturated fluorinated hydrocarbon wherein a mass of the difluoromethane/the unsaturated fluorinated hydrocarbon is 95/5 to 10/90, and a refrigerating machine oil comprising at least one base oil selected from among polyol esters with a carbon/oxygen molar ratio of 3.2 to 5.8 and polyvinyl ethers with a carbon/oxygen molar ratio of 3.2 to 5.8.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: April 30, 2019
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Takeshi Okido, Masanori Saito, Kuniko Adegawa
  • Patent number: 10253232
    Abstract: An ester-based lubricating oil for use in a rotary screw compressor utilizing a chlorine-free hydrofluorocarbon (HFC) refrigerant such as R-134a contains a product obtained from a reaction of tripentaerythritol and a mixed C5-C10 monocarboxylic acid, or a product obtained from a reaction of dipentaerythritol and a mixed C5-C10 monocarboxylic acid, and optionally a product obtained from a reaction of dipentaerythritol and a C5 monocarboxylic acid.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: April 9, 2019
    Assignee: PATECH FINE CHEMICALS CO., LTD.
    Inventors: Hsinheng Li, Jeng-Shiang Tsaih, Hsu-Hua Tang, Jung-Tsung Hung, Chih-Wei Wu, Tai-Her Tsai, Hsin-Li Huang
  • Patent number: 10253276
    Abstract: The invention provides a refrigerating machine oil comprising a hydrocarbon-based base oil, the refrigerating machine oil having a viscosity index of 120 or less, and being used with a 1-chloro-3,3,3-trifluoropropene refrigerant.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: April 9, 2019
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Hitoshi Takahashi, Tsutomu Takahashi, Souichirou Konno
  • Patent number: 10246621
    Abstract: The present invention relates to a refrigerant composition, including difluoromethane (HFC-32), pentafluoroethane (HFC-125), and trifluoroiodomethane (CF3I) for use in a heat exchange system, including air conditioning and refrigeration applications and in particular aspects to the use of such compositions as a replacement of the refrigerant R-410A for heating and cooling applications and to retrofitting heat exchange systems, including systems designed for use with R-410A.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: April 2, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Ankit Sethi, Samuel F. Yana Motta, Gustavo Pottker, Gregory Laurence Smith, Elizabet del Carmen Vera Becerra, Yang Zou, Joshua Close
  • Patent number: 10233371
    Abstract: A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The working fluid has a low global warming potential and can replace R410A. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and an aniline point of at least ?100° C. and at most 0° C.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 19, 2019
    Assignee: AGC Inc.
    Inventors: Masato Fukushima, Hiroaki Mitsuoka, Mai Tasaka, Daisuke Shirakawa, Hirokazu Takagi, Takeaki Arai
  • Patent number: 10233402
    Abstract: Provided are a pressure medium oil, containing a Group-14 element-containing organic compound selected from an organic germanium compound, an organic tin compound, and an organic lead compound, and a method for using a pressure medium oil, which includes applying a pressure to a substance via the pressure medium oil. The pressure medium oil does not solidify even under an ultrahigh pressure of more than 3.7 GPa at room temperature (25° C.) and has a low pour point, and hardly dissolves a conductive paste.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: March 19, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Shinji Aoki, Masahiro Kobessho, Keizo Murata
  • Patent number: 10214671
    Abstract: The working fluid composition for a refrigerating machine of the invention is characterized by comprising an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 branched fatty acid of 50-100% by mole, and a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant. The refrigerating machine oil of the invention is characterized by comprising an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 branched fatty acid of 50-100% by mole, and by being used together with a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: February 26, 2019
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Yuji Shimomura, Katsuya Takigawa
  • Patent number: 10196552
    Abstract: To provide a composition for a heat cycle system having less influence over the ozone layer, having a low global warming potential and having excellent durability, and a heat cycle system. A composition for a heat cycle system comprising a working fluid containing trifluoroethylene and difluoromethane, and a lubricating oil, wherein the interaction distance (Ra1123) between trifluoroethylene and the lubricating oil as determined from the Hansen solubility parameters is shorter than the interaction distance (Ra32) between difluoromethane and the lubricating oil.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: February 5, 2019
    Assignee: AGC Inc.
    Inventors: Katsuya Fujii, Hiroshi Yamamoto, Katsuya Ueno, Hidekazu Okamoto, Masato Fukushima, Hiroaki Mitsuoka, Mai Tasaka
  • Patent number: 10174235
    Abstract: The present invention provides a binary refrigerant mixture that can be used in single or dual evaporator refrigeration systems to provide for efficient cooling without the use of a high global warming potential (GWP) hydrofluorocarbon refrigerant such as R-134a and that is less flammable than a hydrocarbon refrigerant such as R-600 (n-butane) or R-600a (isobutane). Further, the binary refrigerant mixture can be classified as an A2 refrigerant in that it has a heat of combustion of less than 19 kilojoules per kilogram. In addition, the binary refrigerant mixture has a comparable energy efficiency when compared to R-134a and can be used in refrigeration systems designed for use with R-600 or R-600a refrigerants without having to change their design (i.e., without having to change the compressor design).
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: January 8, 2019
    Assignee: Haier US Appliance Solutions, Inc.
    Inventors: Brent Alden Junge, Richard DeVos
  • Patent number: 10144855
    Abstract: The working fluid composition for a refrigerating machine of the present invention comprises a refrigerant comprising a first refrigerant component and a second refrigerant component, and having a global warming potential (GWP) of 500 or less, wherein the first refrigerant component is at least one selected from difluoromethane and tetrafluoropropene, and the second refrigerant component is at least one selected from carbon dioxide and a hydrocarbon having 3 to 4 carbon atoms; and a refrigerating machine oil comprising at least one selected from a polyol ester, a polyvinyl ether and a polyalkylene glycol compound as a base oil, wherein a carbon/oxygen molar ratio of the base oil is 2.5 or more and 5.8 or less.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: December 4, 2018
    Assignee: JXTG NIPPON OIL AND ENERGY CORPORATION
    Inventors: Masanori Saito, Takeshi Okido, Souichirou Konno, Kuniko Adegawa
  • Patent number: 10130909
    Abstract: A method of drying a fluid comprising a fluoropropene, which method comprises the step of contacting the fluid with a desiccant comprising molecular sieve having openings which have a size across their largest dimension of from about 3 ? to about 5 ?. A heat transfer device comprising a heat transfer fluid comprising a fluoropropene, and a desiccant comprising a molecular sieve having openings which have a size across their largest dimension of from about 3 ? to about 5 ?. Preferably, the fluoropropene is R134yf or R-1225ye.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: November 20, 2018
    Assignee: MEXICHEM AMANCO HOLDING S.A. de C.V.
    Inventors: Robert E Low, Stuart Corr