Group Iia Metal Containing Patents (Class 252/389.61)
  • Patent number: 11014946
    Abstract: The objectives of the present invention are: to provide a novel tetrazole silane compound, a method for synthesizing the same, and a silane coupling agent containing the tetrazole silane compound as a component; and to provide a surface treatment solution using the tetrazole silane compound, a method for surface treatment, and a method for adhering two different materials. The tetrazole silane compound according to the present invention is a compound represented by chemical formula (I). (In formula (I), X, R, and n are respectively the same as defined in the specification.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: May 25, 2021
    Assignee: SHIKOKU CHEMICALS CORPORATION
    Inventors: Noriaki Yamaji, Takayuki Murai, Miya Tanioka, Shusaku Iida, Masato Katsumura, Takahito Imamine, Masahiko Tsujino, Tomoya Mae, Hirohiko Hirao
  • Patent number: 10975108
    Abstract: The objectives of the present invention are: to provide a novel tetrazole silane compound, a method for synthesizing the same, and a silane coupling agent containing the tetrazole silane compound as a component; and to provide a surface treatment solution using the tetrazole silane compound, a method for surface treatment, and a method for adhering two different materials. The tetrazole silane compound according to the present invention is a compound represented by chemical formula (I). (In formula (I), X, R, and n are respectively the same as defined in the specification.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: April 13, 2021
    Assignee: SHIKOKU CHEMICALS CORPORATION
    Inventors: Noriaki Yamaji, Takayuki Murai, Miya Tanioka, Shusaku Iida, Masato Katsumura, Takahito Imamine, Masahiko Tsujino, Tomoya Mae, Hirohiko Hirao
  • Patent number: 10525157
    Abstract: Alkaline in-use solutions that may be used to disinfect and/or sanitize hard surfaces and which may act as anti-biofilm agents, comprise a disinfectant/sanitizer cleaner solution and an activator solution that are mixed together to form the alkaline in-use solutions. Disinfectant/sanitizer cleaner solution may comprise quaternary ammonium compound and hydrogen peroxide. Activator solution may comprise alkaline buffering agent, chelating agent and soluble silicon dioxide.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: January 7, 2020
    Assignee: Sterilex, LLC
    Inventors: Edward Fu, Mark Wozniak, Chris Bergstrom
  • Patent number: 10408118
    Abstract: An engine coolant monitoring system for a machine is disclosed. The engine coolant monitoring system may have a test device configured to test a fluid sample of an engine coolant. The engine coolant monitoring system may also have a database configured to store a test result generated by the test device, the test result including a plurality of characteristics of the fluid sample. In addition, the engine coolant monitoring system may have a controller. The controller may be configured to access a rule-set associated with the engine coolant from the database, the rule-set having criteria associated with the characteristics. The controller may also be configured to label the engine coolant as normal when the characteristics of the fluid sample satisfy the criteria and label the engine coolant as abnormal when the characteristics do not satisfy at least one criterion included in the rule-set.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: September 10, 2019
    Assignee: Caterpillar Inc.
    Inventors: Thomas J. DeVenney, Douglas P. Hunsicker
  • Patent number: 9873535
    Abstract: The present invention concerns a composition and method of using non-molybdate corrosion inhibitors in sterilizing and pasteurizing applications. The composition is a blend of one or more components including corrosion inhibitors, surfactants, hydrotropes, polymer dispersants, pH adjusting agents and water. The composition may include two or more of a) alkyl-dicarboxylic acid; b) phosphono-carboxylic acid; c) tri(amino-carboxylic acid); d) anionic polymer dispersant; e) non-ionic surfactant; f) inorganic phosphate; g) phosphonotricarboxylic acid; and h) hydrotrope. Specifically, the composition may comprise sebacic acid, hydroxyphosphonoacetic acid, and 6,6?,6?-(1,3,5-triazine-2,4,6-triyltriimino)tris-hexanoic acid. Optionally, the composition can further comprise a co-polymer of acrylic acid and allyl-2-hydroxy-propyl-sulfonate ether (AA/AHPSE), 2-phosphono-1,2,4-butane-tricarboxylic acid, sodium phosphate monobasic or phosphoric acid, ?-decyl-?-hydroxy-poly(oxy-1,2ethanediyl), and sodium cumenesulfonate.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: January 23, 2018
    Assignee: Genral Electric Company
    Inventors: Zhendong Liu, Donald A. Meskers, Jr., Peter Scheidel
  • Patent number: 8932492
    Abstract: The present invention relates to an energy-saving anti-corrosive metal film composition and manufacturing method for the same. The energy-saving anti-corrosive metal film composition includes: at least one metal powder selected from the group consisting of aluminum, magnesium, and alloys thereof, having particle size of 5-10 um; a first sol-gel resin selected from the group consisting of zirconium tetra-n-butanolate, zirconium butoxide, isopropyl titanate, and mixtures thereof; a second sol-gel resin selected from the group consisting of tris[3-(trimethoxysilyl)propyl] isocyanurate, gamma-meta-acryloxypropyl trimethoxysilane and n-phenyl-gamma-aminopropyltrimetoxysilane, and mixtures thereof; 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
  • Patent number: 8911542
    Abstract: The invention relates to an anti-corrosive composition comprising an active material of formula I wherein R is an aliphatic chain of C12 to C20 and n?20; an anti-corrosive pigment, a filler mixture, and a diluent or carrier. The invention also relates to a process for preparing the anticorrosive composition and a metal substrate having a coating comprising the anti-corrosive composition.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: December 16, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Samir H. Soni, Dhritisunder Bhattacharya
  • Patent number: 8628689
    Abstract: The invention relates to a low temperature-curable coating composition comprising a film-forming resin, a curing agent for the film-forming resin, and a lithium salt.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: January 14, 2014
    Assignee: Akzo Nobel Coatings International B.V.
    Inventors: Peter Visser, Scott Alan Hayes
  • Patent number: 8603392
    Abstract: Corrosion-inhibited hypochlorite compositions and methods of use are disclosed. Corrosion inhibitors including sugar acids and calcium compounds, polyacrylate and calcium compounds, and/or zinc and calcium compounds are used with hypochlorite sources to enhance the longevity and performance of electrochemical cells as well as reducing corrosion of metal in contact with the generated hypochlorite sources. The methods for generation employ a variety of electrochemical cells, beneficially including use of portable electrochemical cell system for production of corrosion-inhibited hypochlorite cleaning solutions.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: December 10, 2013
    Assignee: Ecolab USA Inc.
    Inventors: Jenna Johnson, Kim R. Smith, Erik C. Olson, Steven E. Lentsch
  • Patent number: 8496853
    Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Zinc and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: July 30, 2013
    Assignee: Ecolab USA Inc.
    Inventors: Erik C. Olson, Kim R. Smith, Steven E. Lentsch
  • Patent number: 8343380
    Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Sugar acids and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: January 1, 2013
    Assignee: Ecolab USA Inc.
    Inventors: Kim R. Smith, Erik C. Olson, Steven E. Lentsch
  • Publication number: 20120305832
    Abstract: Compositions which inhibit corrosion and alter the physical properties of concrete (admixtures) are prepared from salt mixtures of hydroxycarboxylic acids, carboxylic acids, and nitric acid. The salt mixtures are prepared by neutralizing acid product mixtures from the oxidation of polyols using nitric acid and oxygen as the oxidizing agents. Nitric acid is removed from the hydroxycarboxylic acids by evaporation and diffusion dialysis.
    Type: Application
    Filed: August 16, 2012
    Publication date: December 6, 2012
    Inventors: Donald E. Kiely, Kirk R. Hash, Kylie Kramer-Presta, Tyler N. Smith
  • Patent number: 8287764
    Abstract: The invention relates to coated particles comprising a core material and a shell and wherein said core material is an organic compound and wherein said shell comprises a layered double hydroxide comprising a hydroxide or an organic anion as charge-balancing anion.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: October 16, 2012
    Assignee: Akzo Nobel N.V.
    Inventors: Cornelis Elizabeth Johannus Van Lare, Auke Gerardus Talma, Hendrika Petronella Maria Verlaan-Hooft
  • Patent number: 8114344
    Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Sugar acids and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: February 14, 2012
    Assignee: Ecolab USA Inc.
    Inventors: Kim R. Smith, Erik C. Olson, Steven E. Lentsch
  • Patent number: 8114343
    Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Zinc and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: February 14, 2012
    Assignee: Ecolab USA, Inc.
    Inventors: Kim R. Smith, Erik C. Olson, Steven E. Lentsch
  • Publication number: 20120025142
    Abstract: The invention relates to a low temperature-curable coating composition comprising a film-forming resin, a curing agent for the film-forming resin, and a lithium salt.
    Type: Application
    Filed: April 2, 2010
    Publication date: February 2, 2012
    Applicant: Akzo Nobel Coatings International B.V.
    Inventors: Peter Visser, Scott Alan Hayes
  • Patent number: 8105531
    Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Polyacrylate and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: January 31, 2012
    Assignee: Ecolab USA Inc.
    Inventors: Kim R. Smith, Erik C. Olson, Steven E. Lentsch
  • Patent number: 8088846
    Abstract: The present invention is directed to novel organometallic complexes as catalysts for the reaction of compounds with isocyanate and hydroxyl functional groups to form urethane and/or polyurethane and the process employing such catalysts. More particularly, the present invention is directed to novel complexes of zinc(II) with substituted amidines. These novel catalysts are useful for the production of urethanes and polyurethanes which are important in many industrial applications.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: January 3, 2012
    Assignee: King Industries, Inc.
    Inventors: Bing Hsieh, Ramanathan Ravichandran, Farouk Abi-Karam
  • Patent number: 7989075
    Abstract: Provided is a chromium-free, low-temperature curable, metal-surface treatment composition comprising 5 to 30 parts by weight of a silane compound having an epoxy group and a silane compound having an amino group or a hydrolytic condensate thereof; 0.1 to 5 parts by weight of a vanadium compound; 0.1 to 5 parts by weight of a magnesium compound; 1 to 10 parts by weight of organic/inorganic acids; 0.05 to 2 parts by weight of a crosslinking accelerating and coupling agent; 0.01 to 1 part by weight of an antifoaming agent; 1 to 2 parts by weight of a wetting agent; and the balance of water and ethanol, based on 100 parts by weight of the total solution. In addition, a steel sheet coated with the above-described metal-surface treatment composition is low-temperature curable and provides anticorrosiveness while containing no chromium components.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: August 2, 2011
    Assignees: POSCO, Daehan Parkerizing Co., Ltd.
    Inventors: Yeong-Sool Jin, Sung-Mun Keom, Jin-Tae Kim
  • Publication number: 20110133128
    Abstract: The invention relates to coated particles comprising a core material and a shell and wherein said core material is an organic compound and wherein said shell comprises a layered double hydroxide comprising a hydroxide or an organic anion as charge-balancing anion.
    Type: Application
    Filed: July 20, 2009
    Publication date: June 9, 2011
    Applicant: Akzo Nobel N.V.
    Inventors: Cornelis Elizabeth Johannus Van Lare, Auke Gerardus Talma, Hendrika Petronella Maria Verlaan-Hooft
  • Patent number: 7820076
    Abstract: The invention relates to an oleaginous mildew and corrosion-inhibiting composition, and the use of said composition to protect metal from corrosion and mildew. The composition comprises, in parts by weight, from about 20 to 60 parts of an oleaginous material such as a lubricating oil, 10 to 40 parts of organic solvent, 20 to 60 parts of corrosion-inhibitor consisting of a sulfonic acid-carboxylic acid metal complex or a mixture of said metal complex with a small but effective amount of an oil soluble alkyl phosphate, from 0.1 to 2.0 parts of an oil soluble antioxidant, from 0.0 to 5.0 parts of a water-displacing compound, an effective amount of a mildew-inhibiting compound, and from 0.0 to 1.0 part of a heterocyclic metal deactivator.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: October 26, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: El Sayed S. Arafat, Craig A. Matzdorf, James A. Whitfield
  • Publication number: 20100233471
    Abstract: The anti-corrosion coating material contains corrosion inhibiting inorganic constituents, or a combination of inorganic and organic corrosion inhibiting constituents, suspended in a polymeric resin. The corrosion resistant composition includes a salt of inorganic constituents, and alkaline polyamine fatty acid salt (PFAS) as a corrosion inhibitor, suspended in a polymeric resin remainder. The coating material may be applied to metal parts but not limited to aircraft fasteners, such as aircraft fastener parts, including nuts and bolts, screws, rivets, and sleeved systems.
    Type: Application
    Filed: August 5, 2009
    Publication date: September 16, 2010
    Inventors: Jeffrey Hayes, Johan Stephan
  • Patent number: 7776233
    Abstract: The invention relates to an oleaginous corrosion-inhibiting composition, and the use of said composition to protect metal from corrosion. The composition comprises, in parts by weight, from about 20 to 60 parts of lubricating oil, 10 to 40 parts of organic solvent, 20 to 60 parts of corrosion-inhibitor consisting of a sulfonic acid-carboxylic acid metal complex or a mixture of said metal complex with a small but effective amount of an oil soluble alkyl phosphate, from 0.1 to 2.0 parts of an oil soluble antioxidant, from 0.1 to 5.0 parts of a water-displacing compound and from 0.0 to 1.0 part of a metal deactivator.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: August 17, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: El Sayed Arafat, Judy Butler-Kowalik, Kenneth Clark, David L. Gauntt
  • Publication number: 20090214883
    Abstract: Chromium-free, curable corrosion protection composition for primary coating of metallic substrates, which has a pH in the range from 1 to 3 and contains water and a) fluorocomplex ions of titanium and/or zirconium, b), at least one corrosion protection pigment, c) at least one organic polymer which is soluble or dispersible in water in the specified pH range and on its own in aqueous solution at a concentration of 50% by weight has a pH in the range from 1 to 3, process for treating metal strip with this composition and treated metal strip which can be obtained in this way. The organic polymer c) is preferably selected so that it contains at least one monomer selected from among acrylic acid, methacrylic acid, acrylic esters and methacrylic esters as free-radically polymerizable, ethylenically unsaturated monomers and has at least one type of functional groups selected from among epoxy, silane, hydroxy, carboxyl, phosphoric acid and phosphoric ester groups.
    Type: Application
    Filed: February 23, 2009
    Publication date: August 27, 2009
    Inventors: Ard De Zeeuw, Marcel Roth, Jorg Sander
  • Patent number: 7566687
    Abstract: Improved desulfurization compositions are provided for removing substantial fractions of sulfur, sulfur complexes, and sulfur compounds from liquid hydrocarbons such as crude oil and fuels. The preferred compositions comprise respective quantities of an alkylphenol ethoxylate, an amine, and an alkali metal nitrite. The compositions may be contacted with liquid hydrocarbons to achieve high levels of desulfurization.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: July 28, 2009
    Assignee: Jacam Chemical, LLC
    Inventors: Gene H. Zaid, Beth Ann Wolf, Gary W. Zorn
  • Patent number: 7541089
    Abstract: A sheathed posttensioning cable assembly including an elongated metallic cable and a coaxially disposed outer sheath, with the cable assembly including a polymeric resin fiber/filament impregnated with a migratory corrosion inhibitor being inserted within the sheath and extending along the length of the cable. The polymeric resin is preferably polypropylene, polyethylene, nylon, or polyethylene terephthalate, with the corrosion inhibitor comprising a 50:50 blend of sodium benzoate and alkali metal sebacate. The inhibitor preferably comprises between 5% and 10% by weight of the impregnated fiber/filament.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: June 2, 2009
    Assignee: Cortec Corporation
    Inventors: Boris A. Miksic, Alla Furman, Margarita Kharshan, Jessica Jackson
  • Patent number: 7270766
    Abstract: “Disclosed is a feed water composition for boilers whose main ingredient is a purified ethylene glycol aqueous solution that is a mixture of purified ethylene glycol and pure water in a weight ratio of 70-90 : 10-30 wt %. The feed water composition comprises 92.1 to 98.8 wt % of the purified ethylene glycol aqueous solution, 0.1 to 2.0 wt % of sodium benrzoate, 0.1 to 1.5 wt % of tolyltriazole, 0.1 to 0.7 wt % of triethanol amine, 0.5 to 1.5 wt % of sodium nitrate, 0.3 to 1.2 wt % of sodium molybdate, and 0.1 to 1.0 wt % of potassium hydroxide.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: September 18, 2007
    Inventor: Young Nam Kim
  • Patent number: 7048873
    Abstract: A composition and method for repairing metal reinforced concrete structures by applying a repair coating to surfaces of such damaged structures. The coating composition is a mortar/aggregate mixture blended with fiber reinforcements and containing a quantity of selected migratory corrosion inhibitors. These inhibitors are a mixture of sodium gluconate together with an auxiliary inhibitor consisting of sodium sebacate, potassium sebacate or ammonium benzoate. The fiber reinforcements consist of polypropylene or polyethylene, and are co-extruded with a quantity of the migratory corrosion inhibitors listed above.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: May 23, 2006
    Assignee: Cortec Corporation
    Inventors: Boris A. Miksic, Alla Furman, Jessica Jackson
  • Patent number: 6833087
    Abstract: Compositions and methods are disclosed for preventing the oxidative corrosion of metal surfaces by exposing a metal surface to an anti-corrosion agent characterized as 2,4-trans, trans-hexadienoic acid (2,4-HDA), its alkali salt identified as potassium sorbate (KHDA), or other derivatives that conserve or embody the 2,4-trans, trans-hexadiene-type moiety present in their molecular structures as an active anti-corrosion agent (ACA), in combination with a material capable of forming a moisture retentive barrier over the metal surface. The compositions and methods of the invention provide a practical, non-toxic way of ensuring anti-corrosion protection for metals, or devices containing exposed metals, stored or operated in water or in the presence of water vapor.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: December 21, 2004
    Assignees: Wonders of Water, LLC, Intellectual Concepts, LLC
    Inventors: Robert A. Beck, Paul D. Manos
  • Patent number: 6787065
    Abstract: The invention concerns the use of a composition or premix based on volatile corrosion inhibitors comprising, in order to limit to a maximum the release and/or degradation of the volatile corrosion inhibitors when the composition or premix is being formed, either an efficient amount of a structuring agent consisting of at least one solid or pasty substance whereof the melting point ranges from 40 to 110° C. preferably from 50 to 90° C., or a liquid substance capable of forming, mixed with a mineral filler, a solid or pasty combination. The invention also concerns a composition based on volatile corrosion inhibitors comprising a composition based on volatile corrosion inhibitors comprising an efficient amount which contains an efficient amount of a solid structuring agent. The invention further concerns polymer based articles having as constituent said composition or premix; said article are useful for protecting metal parts against corrosion.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: September 7, 2004
    Assignee: Henkel KGaA
    Inventors: Joseph Schapira, Patrick Droniou, Loic Guillou, Gabriela Stoianovici, Patrick Delalande
  • Patent number: 6764615
    Abstract: Method and formulation for providing multiple sources of migratory corrosion inhibitors to metallic reinforcements embedded in concrete through addition of the inhibitors to the concrete mix. First and second sources of inhibitors are provided with the first source consisting of a powdered corrosion inhibitor consisting of sodium sebacate, potassium sebacate, dicyclohexylammonium nitrite, sodium nitrite, zinc gluconate, sodium gluconate, and calcium nitrite. The second source consists of an in-situ coextruded blend of a migratory corrosion inhibitor in a resin matrix, the second source consisting of a coextruded blend which includes an alkali metal salt of a dibasic acid containing from 8 to 12 carbon atoms together with migratory corrosion inhibitors consisting of alkali metal gluconates, zinc gluconate, and cyclohexylammonium benzoate, with the alkali metal in the inhibitors being sodium, potassium, or calcium.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: July 20, 2004
    Assignee: Cortec Corporation
    Inventors: Boris A. Miksic, Alla Furman, Michael Hobday, Jessica Jackson, Zvjezdana Matuzic
  • Patent number: 6752934
    Abstract: Substance combinations which contain (1) an inorganic salt of nitrous acid, (2) a water-insoluble polysubstituted phenol, (3) an aliphatic ester of a dihydroxybenzoic acid, and (4) a tocopherol plus optionally (5) a suitable water vapor-volatile bicyclic terpene or an aliphatically substituted naphthalene which promotes sublimation of the components present in the respective substance combination, especially in air at a relatively high atmospheric humidity, and the use of such substance combinations as vapor phase corrosion inhibitors in packaging or in storage in closed spaces for protection of the conventional metals for use such as iron, chromium, nickel, tin, zinc, aluminum, copper and their alloys against atmospheric corrosion are described.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: June 22, 2004
    Assignee: EXCOR Korrosionsforschung GmbH
    Inventors: George Reinhard, Urte Ludwig, Gerhard Hahn
  • Publication number: 20040104377
    Abstract: A corrosion-inhibiting pigment comprising a rare earth element and a valence stabilizer combinded to form a rare earth/valence stabilizer complex. The rare earth element is selected from cerium, terbium, praseodymium, or a combination thereof, and at least one rare earth element is in the tetravalent oxidation state. An inorganic or organic material is used to stabilize the tetravalent rare earth ion to form a compound that is sparingly soluble in water. Specific stabilizers are chosen to control the release rate of tetravalent cerium, terbium, or praseodymium during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Many rare earth-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium systems.
    Type: Application
    Filed: July 23, 2003
    Publication date: June 3, 2004
    Inventors: Andrew Wells Phelps, Jeffrey Allen Sturgill, Joseph Thomas Swartzbaugh
  • Publication number: 20030173543
    Abstract: A specific monocarboxylic acid with even-numbered carbon atoms, sebacic acid, or a salt thereof is used as a corrosion inhibitor. Alternatively, a specific aliphatic monocarboxylic acid, sebacic acid, or a salt thereof is blended with a specific aliphatic oxycarboxylic acid, a specific polycarboxylic acid, or a salt thereof to prepare a corrosion inhibitor. These corrosion inhibitors can be used in a cooling water system using low-hardness water and in water systems wherein a water flow velocity above a given level cannot always be secured, whereby a high corrosion control performance can be exhibited without imposing unfriendly loads on the environment.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 18, 2003
    Applicant: Organo Corporation
    Inventors: Shintaro Someya , Masato Tsuji , Hiroshi Takahashi
  • Patent number: 6506263
    Abstract: An aqueous composition for sealing anodically oxidized aluminum surfaces is described. The composition contains at least one surfactant, a magnesium salt, and a cobalt(II) salt. This composition demonstrates enhanced sealant properties. A method for sealing anodically oxidized aluminum surfaces is also described. In this method, the aluminum is contacted with a composition containing at least one surfactant, a magnesium salt and a cobalt(II) salt.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: January 14, 2003
    Assignee: Houghton Metal Finishing Company
    Inventors: Mores Basaly, Dana Rothwell
  • Publication number: 20020038863
    Abstract: It has been discovered that ammonia and amines are useful to increase the pH and corrosion resistance of high density brines, such as zinc bromide brines, without significantly reducing their densities. The ammonia or amine additive is preferably incorporated by contacting the brine with the additive which is in the vapor phase. Optionally, a substituted carboxylic acid, such as hydroxy carboxylic acid, may be used to increase the amount of ammonia or amine that can be included in the high density brine without precipitation of salts.
    Type: Application
    Filed: October 11, 2001
    Publication date: April 4, 2002
    Inventor: Michael L. Walker
  • Publication number: 20010022947
    Abstract: Effective corrosion inhibitors having minimal organic content, particularly suitable for use in municipal drinking water systems, are described. The corrosion inhibiting additive is a stannous salt of a non-carbon acid.
    Type: Application
    Filed: December 19, 2000
    Publication date: September 20, 2001
    Applicant: A.S. Incorporated
    Inventor: Olen L. Riggs
  • Patent number: 6254980
    Abstract: A metal plate having a rust preventive organic layer, said rust-preventive organic layer being a colloid or micelle of a slightly water soluble organic corrosion inhibitor as an organic layer mixed with and dispersed in a matrix resin, its production process and a treatment liquid in which it is processed.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: July 3, 2001
    Assignee: Nippon Steel Corporation
    Inventors: Kenichiro Tadokoro, Hiromasa Shoji, Tadashi Sakon, Ikuo Jitsuhara, Makoto Yamasaki
  • Patent number: 6200499
    Abstract: Compositions comprising certain amino acids such as aspartic acid, when fully ionized at alkaline pH, function effectively as corrosion inhibitors for ferrous metals in the presence of an aqueous medium. This effect is enhanced with increased fluid velocity.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 13, 2001
    Assignee: Solutia Inc.
    Inventors: Dennis J. Kalota, David C. Silverman