Anti-corrosion Patents (Class 252/387)
  • Patent number: 11222735
    Abstract: A conducting shear thinning gel composition and methods of making such a composition are disclosed. The conducting shear thinning gel composition includes a mixture of a eutectic gallium alloy and gallium oxide, wherein the mixture of eutectic gallium alloy and gallium oxide has a weight percentage (wt %) of between about 59.9% and about 99.9% eutectic gallium alloy, and a wt % of between about 0.1% and about 2.0% gallium oxide. Also disclosed are articles of manufacture, comprising the shear thinning gel composition, and methods of making article of manufacture having a shear thinning gel composition. Also disclosed are sensors and multiplexed systems utilizing deformable conductors.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: January 11, 2022
    Assignee: Liquid Wire Inc.
    Inventor: Mark Ronay
  • Patent number: 11208585
    Abstract: A method of using a suppression factor fluid during a well activity is provided. The method comprising the steps of introducing a suppression factor fluid into a wellbore, the suppression factor fluid comprising an untreated divalent brine, and a suppression sugar alcohol, the suppression sugar alcohol in an amount operable to achieve a suppression factor of at least 0.1, wherein a density upper limitation of the suppression factor fluid is greater than the density upper limitation of the divalent brine; wherein the suppression factor fluid is in the absence of zinc; and completing the well activity in the wellbore, such that the suppression sugar alcohol inhibits crystallization during the well activity.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: December 28, 2021
    Assignee: TETRA TECHNOLOGIES, INC.
    Inventor: Arthur G. Mack
  • Patent number: 11091840
    Abstract: A corrosion resistant article including an aluminum substrate and a corrosion-inhibiting cerium based corrosion inhibitor corrosion inhibiting additive on the aluminum substrate, the corrosion inhibiting additive comprising an anodic corrosion inhibitor and a cathodic corrosion inhibitor, the anodic corrosion inhibitor greater than 25 wt % of the total inhibitor.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: August 17, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Zhongfen (Vivian) Ding, Georgios S. Zafiris, Weilong Zhang, Michael A. Kryzman, Catalin G. Fotache, Mark R. Jaworowski
  • Patent number: 10925284
    Abstract: An herbicidal composition comprising (a) glyphosate or a derivative thereof, (b) an amidoalkylamine surfactants having the general structure: wherein R1 is a hydrocarbyl having from about 1 carbon atoms to about 22 carbon atoms, and R2, R3, and R4 are each independently hydrocarbyl having from about 1 carbon atom to about 6 carbon atoms; and (c) at least one co-surfactant.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: February 23, 2021
    Assignee: Monsanto Technology LLC
    Inventors: William Abraham, John Hemminghaus, Daniel R. Wright, Shawn Zhu
  • Patent number: 10883311
    Abstract: A bearing providing a plurality of rolling elements and at least one raceway for the rolling elements. The at least one raceway or the rolling elements include a tungsten carbide coating. In some embodiments, the tungsten carbide coating may be a Nano-structured tungsten carbide coating. In some embodiments, the at least one raceway or the rolling elements may comprise a steel substrate covered with the tungsten carbide coating. Embodiments also relate to a method for producing a bearing. The method includes coating a plurality of rolling elements or at least one raceway for the rolling elements with a tungsten carbide coating. In some embodiments, the tungsten carbide coating may be a Nano-structured tungsten carbide coating.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: January 5, 2021
    Assignee: Aktiebolaget SKF
    Inventors: Erich Klinglmair, Simon Blasl, Parveen K Chandila
  • Patent number: 10822547
    Abstract: Treatment of crude oil with basic ionic liquids (ILs), results in scavenging of any hydrochloric acid (HCl) that is present to remove the HCl. The IL is a quaternary ammonium compound having the formula R4N+X? or R3N+R?N+R3, where R is independently an alkyl group, an alkylbenzyl group, a hydroxyalkyl group, or a hydroxyalkylbenzyl group, and R is straight or branched and has 1-22 carbon atoms, R? is a straight or branched alkylene or oxyalkylene having 1 to 10 carbon atoms, and where X? is selected from the group consisting of hydroxide, carbonate, alkylcarbonate, bicarbonate or alkoxide, where the alkyl group of the alkyl-carbonate or alkoxide, if present, is straight or branched and has 1 to 8 carbon atoms. The ILs are introduced into the crude oil after the refinery desalters and before the crude distillation tower to prevent or inhibit HCl from distilling to the crude tower overhead.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 3, 2020
    Assignee: Baker Hughes Holdings LLC
    Inventor: Jerry J. Weers
  • Patent number: 10734647
    Abstract: Synthesis process for new particles of Li4Ti5O12, Li(4-?)Z?Ti5O12 or Li4Z?Ti(5-?)O12, preferably having a spinel structure, wherein ? is greater than 0 and less than or equal to 0.5 (preferably having a spinel structure), ? representing a number greater than zero and less than or equal to 0.33, Z representing a source of at least one metal, preferably chosen from the group made up of Mg, Nb, Al, Zr, Ni, Co. These particles coated with a layer of carbon notably exhibit electrochemical properties that are particularly interesting as components of anodes and/or cathodes in electrochemical generators.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: August 4, 2020
    Assignee: HYDRO-QUEBEC
    Inventors: Karim Zaghib, Michel Gauthier, Fernand Brochu, Abdelbast Guerfi, Monique Masse, Michel Armand
  • Patent number: 10633581
    Abstract: A composition and method for using seawater as a treatment fluid is provided. The treatment fluid comprises N-(phosphonomethyl)iminodiacetic acid and seawater. The provided treatment fluid is stable and viscous, even at high temperatures and a high pH.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: April 28, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Benjamin Edward LaBlanc, Enrique Antonio Reyes, Alyssa Lynn Smith, Aaron Michael Beuterbaugh
  • Patent number: 10450534
    Abstract: Cleaning compositions and methods for removing chewing gum, its components and other sticky soils from surfaces, especially production facilities, are disclosed. Cleaning composition solutions that do not require a rinse step are disclosed and suitable for treatment of surfaces having indirect food contact. In an aspect, the cleaning compositions and methods employ a scraping-spraying-wiping procedure.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: October 22, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Clinton Hunt, Jr., Tanya Paola Tristan Garza, Mallory Jo Tevis, Mark Andrew Malwitz, Marne Colleen Rasinen, Eric Joseph Ditzel, Scott Lyman Burnett, Sara Trevino Garza
  • Patent number: 10442546
    Abstract: A fuel tank inerting system uses a catalytic oxidation unit to combust fuel from the fuel tank to produce inert gas, simultaneously working with a gas separator that removes dissolved carbon dioxide from the fuel before it is cycled to the thermal management system (TMS) or the engine. This prevents cavitation of carbon dioxide (gaseous bubbling) within the fuel at varying temperatures while in flight.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: October 15, 2019
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Jonathan Rheaume, Haralambos Cordatos
  • Patent number: 10364195
    Abstract: In some examples, a technique may include positioning a first part comprising a ceramic or ceramic matrix composite and a second part comprising a ceramic or a CMC adjacent to each other to define a joint region at the interface of the first part and the second part. In some examples, the joint region may be heated using at least one of a laser or a plasma arc source to heat the joint region to an elevated temperature. The first and second parts may be pressed together and cooled to join the first and second parts at the joint region. In other examples, a solid braze material including a filler material and a metal or alloy may be delivered to the joint region and locally heated to cause a constituent of the filler material and a constituent of the metal or alloy to react. When reacted, the constituents may form a solid material, which may join the first and second parts.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: July 30, 2019
    Assignees: Rolls-Royce Corporation, The Curators of the University of Missouri
    Inventors: Sean E. Landwehr, Scott Nelson, Jeremy Lee Watts, Gregory Eugene Hilmas, William Gene Fahrenholtz, Derek Scott King
  • Patent number: 10329476
    Abstract: A synthetic acid composition for use in oil industry activities comprising urea and methanesulphonic acid in a molar ratio of not loss than 1.0:1, a metal iodide or iodate and an alcohol or derivative thereof.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: June 25, 2019
    Assignee: FLUID ENERGY GROUP LTD.
    Inventors: Clay Purdy, Darren Thatcher, Jon Garner, Bruce Ulmer, Alexander David Jamieson
  • Patent number: 10246784
    Abstract: Corrosion to a metal surface in contact with corrosion forming components within an aqueous-based fluid system may be decreased, prevented, and/or inhibited by contacting the metal surface(s) with apatite forming components and forming at least one apatite species on the surface with the apatite forming components. The apatite forming components may be or include phosphates, organophosphates and combinations thereof. In a non-limiting embodiment, the apatite forming components may further include fluorides, chlorides, calcium, and combinations thereof.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: April 2, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Zhengwei Liu, Tracey Jackson, Richard Martin
  • Patent number: 10190034
    Abstract: Methods for reducing viscosifying tendencies of crude oil in subterranean formations using solid acid chelating agents are described. The methods include combining a solid acid chelating agent and an aqueous acid solution to form a treatment fluid, and introducing the treatment fluid into the subterranean formation. The solid acid chelating agent includes at least one aminopolycarboxylic acid functional group and at least one phosphonic acid functional group.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: January 29, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Benjamin Edward LaBlanc, Enrique Antonio Reyes, Alyssa Lynn Smith, Aaron Michael Beuterbaugh
  • Patent number: 10174206
    Abstract: This invention relates to sacrificial-metal pigments coated with an effective amount of at least one metal oxide or a combination of metal oxides such as a mixture of chromium and zirconium oxides, and the process for preparing said coated pigments and combination thereof with film-forming binders for coating metal substrates to inhibit corrosion. The coated sacrificial-metal pigments are electrically active to prevent corrosion of metal substrates that are more cathodic (electropositive) than the metal oxide coated metal pigments.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: January 8, 2019
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Craig Matzdorf, William Nickerson
  • Patent number: 10177071
    Abstract: A method of forming an on-chip heat sink includes forming a device on a substrate. The method also includes forming a plurality of insulator layers over the device. The method further includes forming a heat sink in at least one of the plurality of insulator layers and proximate to the device. The heat sink includes a reservoir of phase change material having a melting point temperature that is less than an upper limit of a design operating temperature of the chip.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: January 8, 2019
    Inventor: Mattias E. Dahlstrom
  • Patent number: 10094203
    Abstract: Improved corrosion inhibitors for well brines include a phosphonate or salts thereof, and a gluconic acid or salts thereof. The inhibitors are normally injected downhole into the brines. The most preferred phosphonates are amine polyphosphonates, used in combination with alkali metal salts of gluconic acid.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: October 9, 2018
    Assignee: CES TECHNOLOGY S.À R.L.
    Inventors: Gene H. Zaid, David P. Horton, Kim Brashear
  • Patent number: 9969955
    Abstract: This disclosure relates to powdered automatic dishwashing detergents. More particularly, this disclosure relates to powdered automatic dishwashing detergent packets with superior environmental and human safety as well as superior cleaning efficacy and stability.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: May 15, 2018
    Assignee: Melaleuca, Inc.
    Inventors: Daniel Smith, Merrill Judy
  • Patent number: 9938498
    Abstract: The present invention relates to a method for inducing and expanding natural killer cells derived from peripheral blood mononuclear cells, which comprises co-culturing, as feeder cells, irradiated Jurkat cells and irradiated Epstein-Barr virus transformed lymphocyte continuous line (EBV-LCL) cells in the presence of cytokines, along with peripheral blood mononuclear cells. According to the present invention, a large quantity of natural killer cells can be induced and proliferated from a small quantity of peripheral blood mononuclear cells even without the use of high-cost equipment or various kinds of expensive cytokines, thereby making it possible to significantly improve the efficiency and efficacy of the prevention and treatment of cancer using the natural killer cells.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: April 10, 2018
    Assignee: NKMAX Co., Ltd.
    Inventors: Kyung Mi Lee, Seon Ah Lim, Cassian Yee
  • Patent number: 9907303
    Abstract: The invention relates to a viscoelastic system for drift reduction for pesticidal formulations, and the use thereof, wherein the formulation comprising at least one nitrogen-based cationic surfactant and at least one pesticide, wherein the pesticide contains at least one acid functional group associating with the cationic surfactant thereby forming a viscoelastic formulation.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: March 6, 2018
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventor: Jinxia Susan Sun
  • Patent number: 9778242
    Abstract: A wear-indicating metalworking fluid is provided that includes a lubricant base; and a wear-indicating agent. A method of determining wear in a metalworking fluid includes providing wear-indicating metalworking fluid that contains a lubricant base and a wear indicating agent; and observing the visual appearance of the metalworking fluid. A change in visual appearance of the metalworking fluid when compared to an unused metalworking fluid indicates wear of the metalworking fluid.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: October 3, 2017
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Emily J. Gibbons, Steven M. Badger, II, Leroy N. Hitchcock, Jacob F. Harkey
  • Patent number: 9758426
    Abstract: The present invention relates to reflective articles, such as solar mirrors, that include a sacrificial cathodic layer. The reflective article, more particularly includes a substrate, such as glass, having a multi-layered coating thereon that includes a lead-free sacrificial cathodic layer. The sacrificial cathodic layer includes at least one transition metal, such as a particulate transition metal, which can be in the form of flakes (e.g., zinc flakes). The sacrificial cathodic layer can include an inorganic matrix formed from one or more organo-titanates. Alternatively, the sacrificial cathodic layer can include an organic polymer matrix (e.g., a crosslinked organic polymer matrix formed from an organic polymer and an aminoplast crosslinking agent). The reflective article also includes an outer organic polymer coating, that can be electrodeposited over the sacrificial cathodic layer.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: September 12, 2017
    Assignee: Vitro, S.A.B. de C.V.
    Inventors: Benjamin Kabagambe, Michael J. Buchanan, Matthew S. Scott, Brian K. Rearick, Paul A. Medwick, James W. McCamy
  • Patent number: 9704778
    Abstract: A method of forming an on-chip heat sink includes forming a device on a substrate. The method also includes forming a plurality of insulator layers over the device. The method further includes forming a heat sink in at least one of the plurality of insulator layers and proximate to the device. The heat sink includes a reservoir of phase change material having a melting point temperature that is less than an upper limit of a design operating temperature of the chip.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: July 11, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Mattias E. Dahlstrom
  • Patent number: 9512368
    Abstract: Corrosion of ferrous material such as steel or stainless steel is a problem in oil pipelines, oil storage tanks, and the piping and process equipment at oil refineries, and this corrosion may be reduced by reducing the TAN value of the oil feedstock that is used/transported within the ferrous material. This TAN value may be reduced by reacting the oil feedstock with an alkali metal, thereby forming a de-acidified alkali metal. The de-acidified alkali metal has a TAN value of less than or equal to 1 mgKOH/g.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: December 6, 2016
    Assignee: FIELD UPGRADING LIMITED
    Inventor: John Howard Gordon
  • Patent number: 9404051
    Abstract: The present invention relates to the bioupgrading of crude oil is directed to a process for decreasing the acidity of an acidic crude oil, comprising contacting an acidic crude oil with a mixture nitrogen containing compounds selected from the group comprising ammonia, ammonia hydroxide, amines and the salts thereof, and in the presence of lipase enzyme, under conditions of suitable temperature and pressure sufficient to form the corresponding amide. The resulting naphthenic acid derived amides can then be processed normally in a refinery using such processes as cracking or hydrotreating and converted to hydrocarbon, ammonia and carbon dioxide without causing damage to the refinery infrastructure. This enzyme process is done at reduced temperatures (40-60° C.) and pressures requiring less energy.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: August 2, 2016
    Assignee: Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources
    Inventor: Louis D. Heerze
  • Patent number: 9290851
    Abstract: Corrosion inhibitors and methods for inhibiting or reducing corrosion of metallic surfaces are provided. A corrosion inhibitor composition may include a 3-alkylamino-2-hydroxysuccinic acid compound. A method of inhibiting corrosion of a metallic surface in an aqueous system includes the step of contacting the surface with an effective amount of a corrosion inhibitor composition. The corrosion inhibitor composition may include other components, such as zinc, and it may also exclude phosphorus.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: March 22, 2016
    Assignee: ECOLAB USA Inc.
    Inventors: Jasbir S. Gill, Peter E. Reed, Santanu Banerjee, Anand Harbindu
  • Patent number: 9222019
    Abstract: Corrosion inhibitors and methods for inhibiting or reducing corrosion are provided. The corrosion inhibitors include one or more niobate containing compounds. The corrosion inhibitors may be added to an aqueous system and inhibit the corrosion of a surface contained in the aqueous system. Illustrative examples of suitable niobate compounds are potassium niobate, ammonium niobate, and ammonium niobate oxalate.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: December 29, 2015
    Assignee: Ecolab USA Inc.
    Inventors: Danilo Zim, Matheus Paes Paschoalino
  • Patent number: 9115431
    Abstract: Compositions and methods for reducing stress corrosion cracking in steel vessels used for storing and/or transporting ethanol-containing fluids. Additives including oxygen scavengers and film-forming additives can be employed together in such ethanol-containing fluids (e.g., fuel grade ethanol) to mitigate stress corrosion cracking in steel vessels, such as pipelines, storage tanks, rail cars, and/or tanker trucks.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: August 25, 2015
    Assignee: MIDCONTINENTAL CHEMICAL
    Inventor: Philip S. Korosec
  • Patent number: 9034209
    Abstract: Corrosion protection formulation comprising (A) from 0.01 to 5% by weight of alkylamine ethoxylates as surfactant component, (B) from 0.01 to 10% by weight of corrosion inhibitors, (C) from 0 to 0.3% by weight of thickeners, (D) from 5 to <75% by weight of freezing point-lowering alcohols selected from among alkanols, glycols, polyalkylene glycols and glycerol, (E) from 5 to 90% by weight of vegetable and/or fatty oils, (F) from 0 to 5% by weight of water and (G) from 0 to 5% by weight of conventional emulsifiers. The formulation is particularly suitable for protecting zinc or zinc-plated components or surfaces or cadmium or cadmium-plated metallic surfaces against corrosion caused by runway deicing compositions used at airports.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: May 19, 2015
    Assignee: BASF SE
    Inventors: Harald Dietl, Uwe Nitzschke
  • Patent number: 9011977
    Abstract: Microencapsulated chemical(s), as water-soluble solid particles, are embedded in at least one the paint layers on the surface of a magnesium article used in an automobile. If the protective paint film is scratched or otherwise mechanically disturbed to expose the surface of the magnesium article the capsules will be ruptured. This will expose the encapsulated chemical(s) to ambient water enabling them to dissolve and form an aqueous solution capable of reacting with the exposed magnesium to form a protective passivating layer on the exposed magnesium to resist corrosion. In a second embodiment the encapsulated chemicals include a deliquescing compound for extraction of moisture from the atmosphere sufficient to induce dissolution of the passivating layer-forming chemical(s) and trigger the formation of the passivating layer in the absence of ambient water.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: April 21, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Anil K. Sachdev, Thomas C. Pederson, Mark W. Verbrugge
  • Patent number: 8999234
    Abstract: A composition for the creation of a protective barrier on a wide variety of materials to prevent the deterioration and degradation caused by exposure to moisture and sun over time.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 7, 2015
    Inventor: David Walden
  • Publication number: 20150093065
    Abstract: An anti-fretting rust preventative solution includes a rust preventative fluid and an anti-fretting additive dissolved in the rust preventative fluid. The anti-fretting additive includes at least one compound that is surface-active with steel to produce a low-shear velocity accommodation layer in a metal-to-metal interference fit. The anti-fretting rust preventative solution can be provided in a bearing assembly with metal-to-metal interference fits, as well as other applications where fretting wear may otherwise occur.
    Type: Application
    Filed: January 24, 2013
    Publication date: April 2, 2015
    Inventors: Gary Doll, Peter Drechsler, Carl Hager, Ryan Evans, Paul Shiller
  • Patent number: 8951442
    Abstract: The present invention relates to the discovery that melanoidins, and higher molecular weight fractions of products containing melanoidins, provide significant corrosive inhibition, which render these melanoidins suitable for use as anticorrosive agents in corrosive environments. In addition to being highly anticorrosive, the melanoidins of the present invention are environmentally friendly and non-toxic, and can be found in animal food and in human foodstuffs.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: February 10, 2015
    Assignee: Sears Petroleum & Transport Corporation and Sears Ecological Applications Co.
    Inventors: Robert A. Hartley, David H. Wood
  • Patent number: 8932491
    Abstract: The present invention relates to a composition for an anti-corrosive coating agent and a manufacturing method for same. The present invention includes: a metal flake; a sol-gel resin; a polyurethane prepolymer having NCO % of 2.5-3.1 and average molecular weight of 70,000-100,000; and a solvent.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: January 13, 2015
    Assignee: L'Beste Gat Ltd.
    Inventors: Hyung Oh Lee, Hyun Min Kim, Jeung Euy Song, Soo Ryang Park, Kyong Ho Jang
  • Patent number: 8920714
    Abstract: A corrosion prevention and control composition and method comprises combining primarily two-component polyurethane foam formed by reacting polyols with an isocyanate compound, and a 2 to 10 percent by weight of either an organic or inorganic gas-phase corrosion inhibitor. The closed cell foam provides a barrier protection for the underlying corrodible surface, while the inhibitor protects the metal from the absorbed moisture vapor, thereby preventing corrosion from occurring at the foam/metal interface. The resulting foam and inhibitor composition maintains better adhesion to the underlying corrodible structure in corrosive environments.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: December 30, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: John V. Kelley, II
  • Patent number: 8916117
    Abstract: A method for the reduction of corrosion in a treatment unit acid used for separating hydrogen sulfide from and acid gas stream using an alkaline absorption solution. Ions comprising the S2? and/or HS? ions formed by the absorption of the hydrogen sulfide in the absorbent solution are subjected to in situ electrochemical oxidization to form polysulfide ions which form a protective coating on the surfaces of the unit.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: December 23, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Gordon Bryce McGarvey, Robert J. Falkiner, David R. Slim, Bryan M. Knickerbocker
  • Publication number: 20140363596
    Abstract: An article includes a body that is coated with a ceramic coating. The ceramic coating may include Y2O3 in a range between about 45 mol % to about 99 mol %, ZrO2 in a range between about 0 mol % to about 55 mol %, and Al2O3 in a range between about 0 mol % to about 10 mol %. The ceramic coating may alternatively include Y2O3 in a range between about 30 mol % to about 60 mol %, ZrO2 in a range between about 0 mol % to about 20 mol %, and Al2O3 in a range between about 30 mol % to about 60 mol %.
    Type: Application
    Filed: July 30, 2013
    Publication date: December 11, 2014
    Applicant: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Tom Cho
  • Patent number: 8906990
    Abstract: Disclosed is a surface treatment agent for galvanized steel sheets, which comprises epoxy-containing silane derivates, alkyl-containing silane derivates, alkoxy silane derivates and one or more selected from the group consisting of a cationic polymer aqueous dispersion, a non-ionic polymer aqueous dispersion and a water-soluble polymer. Also disclosed is a method for producing it, which comprises mixing each component uniformly for 0.5 to 8 hours at 5 to 70° C. Further provided are galvanized steel sheets coated with the surface treatment agent on the surface and a production method thereof. The surface treatment agent for galvanized steel sheets has excellent corrosion resistance, alkali resistance, solvent resistance, recoating property, high temperature resistance and electrical conductivity.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: December 9, 2014
    Inventors: Frank Wan, Jimmy Zhang, Kevin Meagher
  • Patent number: 8906267
    Abstract: The invention relates to substance combinations comprising (1) at least one substituted, preferably polysubstituted, pyrimidine, (2) at least one monoalkylurea, (3) at least one C3 to C5 aminoalkyldiol, and optionally (4) at least one benzotriazole, preferably a benzotriazole which is substituted on the benzene ring. The components may be mixed together or dispersed in water or pre-mixed in a solubiliser that is miscible in any ratio with mineral oils and synthetic oils, such as for example a phenyl alkyl alcohol or an alkylated phenol. Such substance combinations can be used as vapour phase corrosion inhibitors in packagings or during storage in closed spaces for protecting customary utility metals, such as iron, chromium, nickel, tin, zinc, aluminium, copper and alloys thereof, against atmospheric corrosion.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 9, 2014
    Assignee: Excor Korrosionsforschung GmbH
    Inventors: Georg Reinhard, Peter Neitzel, Gerhard Hahn
  • Patent number: 8865309
    Abstract: The present invention includes compositions and methods of supplying a corrosion inhibitor including placing a corrosion inhibitor attached to a nanostructure carrier, placing the nanostructure carrier containing the corrosion inhibitor at a location and the nanostructure carrier is capable of releasing the corrosion inhibitor.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: October 21, 2014
    Assignee: National Oilwell Varco, L.P.
    Inventors: Deepthi R. Setlur, Stefan M. Butuc
  • Patent number: 8845930
    Abstract: The invention provides a method for pre-treating a metal surface with a corrosion inhibitor prior to painting, a method for inhibiting corrosion in a cooling system, wherein the cooling system includes a metal surface and a coolant; and a method for inhibiting corrosion of a reinforcement steel in concrete wherein the method comprising the step of adding to a concrete mixture an anti-corrosive mixture.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: September 30, 2014
    Assignee: Pigmentan Ltd.
    Inventors: Gregory Pipko, Zvi Miller
  • Patent number: 8765652
    Abstract: The present invention relates to reagents for use in deactivating nucleic acids and methods of making and using the same.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: July 1, 2014
    Assignee: Gen-Probe Incorporated
    Inventors: Norman C. Nelson, Kenneth A. Browne, Lizhong Dai, James Russell, Mark E. Filipowsky, Margarita B. Kaminsky, Daniel L. Kacian
  • Patent number: 8765020
    Abstract: Mitigating or preventing corrosion of metal may be achieved in systems that are alkaline, such as carbon dioxide capture systems. The method may include adding an additive to a system wherein the system is at an alkaline pH; the system has both O2 and CO2 present; or the system is at an alkaline pH and has both O2 and CO2 present. The additive may be selected from the group consisting of: quaternary aromatic amines; quaternary alkyl substituted aromatic amines; and combinations thereof. The corrosion inhibiting properties of the additives may be increased by use of synergistic combinants. The abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: July 1, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Ksenija Babić-Samard{hacek over (z)}ija, Lawrence N. Kremer, David J. Poelker, Vladimir Jovancicevic, Sunder Ramachandran
  • Patent number: 8758876
    Abstract: A coating which provides corrosion resistance, wear resistance, and, optionally, lubrication, for deposition on a threaded article is disclosed. The coating comprises a polymer matrix, such as a polyimide, which is modified with small amounts of a fluorine containing polymer modifier, as well as other compounds or additives to improve performance of the coating. Additionally, the coating can further comprise a solid lubricant or an anticorrosion compound dispersed within the polymer matrix.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: June 24, 2014
    Assignee: Tenaris Connections Limited
    Inventors: Gabriel Eduardo Carcagno, Klaus Endres
  • Patent number: 8748007
    Abstract: Disclosed are coating compositions, such as primer compositions, suitable for providing corrosion protection to metal substrates, as well as related coated articles and methods.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: June 10, 2014
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Matthew S. Scott, Richard F. Syput, Steven R. Zawacky
  • Patent number: 8747734
    Abstract: A process for passivation of surfaces of heat exchange apparatus exposed to a synthesis gas containing carbon monoxide, includes the steps of: (i) adding arsine to the synthesis gas to provide a total As concentration in the synthesis gas in range 0.001 to 10 ppmv, (ii) exposing the mixture of hot synthesis gas and arsine to the shell-side surfaces of said heat exchange apparatus to reduce the interaction between the carbon monoxide present in said gas and metals in said surfaces, (iii) recovering a cooled synthesis gas from the shell-side of said apparatus, and (iv) passing the cooled synthesis gas, optionally after further cooling, through a sorbent bed to remove arsenic compounds from the synthesis gas.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: June 10, 2014
    Assignee: Johnson Matthey PLC
    Inventors: Peter Edward James Abbott, Martin Fowles
  • Patent number: 8715568
    Abstract: Use of a composition comprising silicon, oxygen and at least one of calcium, potassium, or titanium, as a material for coating an equipment or as a constituent material of equipment, intended to be in contact with a mixture containing a chlorohydrin, hydrogen chloride and water. The use of the composition may provide a method for reducing corrosion of the equipment, for decreasing the frequency of replacement of the equipment and/or for lowering the risks linked to equipment breakage and leak. The equipment which is intended to be in contact with the mixture may be used in a process for manufacturing a chlorohydrin, in which a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture of the two, is reacted with a chlorinating agent that contains hydrogen chloride.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: May 6, 2014
    Assignee: Solvay SA
    Inventors: Josselin Bobet, Christian Franck
  • Publication number: 20140091261
    Abstract: Working material for absorption machines using ammonia (NH3) or methylamine (CH3NH2) or dimethylamine ((CH3)2NH) as the working agent and using water (H2O) as the solvent, to which a small amount of basic water glass is added, i.e., a certain mixture of water glass and bases, which does not contain any chromium salts as corrosion inhibitors.
    Type: Application
    Filed: September 13, 2013
    Publication date: April 3, 2014
    Applicant: THETFORD CORPORATION
    Inventor: Jürgen KELLER
  • Publication number: 20140094356
    Abstract: A treatment process, an oxide-forming treatment composition, and a treated component are disclosed. The treatment process includes applying an oxide-forming treatment composition to a ceramic coating and heating the oxide-forming treatment composition to form an oxide within the ceramic coating. The oxide-forming treatment composition includes a solute and a corrosion inhibitor. The oxide-forming treatment composition is super-saturated with the corrosion inhibitor. The treated component includes a ceramic coating and one or both of a corrosion inhibitor and an oxide formed by an oxide-forming treatment composition having the corrosion inhibitor. The corrosion inhibitor and the oxide-forming treatment composition are within the ceramic coating.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Yuk-Chiu LAU, Vinod Kumar PAREEK, Joshua L. MARGOLIES, Raymond Grant ROWE
  • Patent number: 8668887
    Abstract: Methods and systems are provided for the in situ generation of polysulfide ions in a process stream including S2? and/or HS? ions. Methods and systems are also provided to ameliorate corrosion in a process stream containing an acid gas or a scrubbing agent solvent, and abate mercury and cyanide in process streams containing a scrubbing agent solvent.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: March 11, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Gordon Bryce McGarvey, Robert J. Falkiner, David R. Slim, Bryan M. Knickerbocker