Pentavalent P, Except H(n+2)pno(3n+1) Patents (Class 252/389.23)
  • Patent number: 9873776
    Abstract: The present invention relates to a polyolefin composition with increased resistance to degradation caused by ClO2-containing water and to a pipe or a fitting made of such a polyolefin composition. The polyolefin composition comprises a polyolefin base resin (A), an antioxidant (B) having a chroman-6-ol structure, and an antioxidant (C) having a phenolic structure and the molecule comprises at least one ester group. The present invention further relates to the use of the polyolefin composition for the production of a pipe or a fitting and to the use of the polyolefin composition for increasing the lifetime of a pipe or a fitting providing the polyolefin composition with resistance against degradation caused by contact with ClO2-containing water.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: January 23, 2018
    Assignee: BOREALIS AG
    Inventors: Martin Anker, Tanja Piel
  • Patent number: 9140640
    Abstract: A method for determining and identifying corrosion protective layers that provide corrosion protection against crude oils and crude oil fractions is disclosed. The method identifies naturally occurring constituents in crude oils that indirectly provide corrosion protection. A method assessing the potential of these constituents is also disclosed. The method includes exposing metal coupons with the crude oil or crude fraction of interest at the expected operating temperature of concern. The corrosion potential assessment further analyzes the exposed coupons with transmission electron microscopy and an additional high temperature exposure that challenges the tenacity of the protection offered by the corrosion protective layer.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: September 22, 2015
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: H. Alan Wolf, Fang Cao, Saul C. Blum, Alan M. Schilowitz, Shiun Ling, James E. McLaughlin, Srdan Nesic, Peng Jin, Gheorghe Bota
  • Publication number: 20150125544
    Abstract: A solid composition for treating cooling or heated water systems to remove scale, microorganisms and biofilm, and corrosion by-products. The composition for cooling towers and chilled water systems comprises chelating agents and an anionic surfactant. The composition for boilers and heated water systems comprises a sulfite, neutralizing amines, sodium phosphate, and, optionally, a polymethacrylate or polyacrylate polymer. A method for using such a treatment composition comprises contacting the treatment composition with substantially all parts of the water system.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 7, 2015
    Inventors: Ecaterina Henderson, Pedro G. Gomez, John T. Buxton, Lyle H. Steimel
  • Publication number: 20150118103
    Abstract: Compositions and methods for inhibiting the corrosion of metals in contact with an aqueous system are provided. The method of inhibiting corrosion includes maintaining effective amounts of (1) an amino acid-based polymer, such as a polyaspartic acid compound, and (2) a dispersible and/or soluble tin compound in the aqueous system. The corrosion inhibiting components of the treatment may be added simultaneously or separately into the water of the aqueous system, i.e., provided either in a single treatment product or as separate products. The single treatment single treatment product may include the amino acid-based polymer and a dispersible and/or soluble tin compound. Such a corrosion inhibiting composition may optionally also include a polycarboxylic acid chelating agent and/or a carboxylate/sulfonate functional copolymer.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Inventors: Donovan L. Erickson, Roy A. Johnson, Matthew Ryan LaBrosse, Paul R. Young
  • Publication number: 20150040796
    Abstract: A corrosion inhibitor composition for use in coating compositions on metal surfaces, or in metal containers, to provide corrosion resistance to said metals. The corrosion inhibitor comprises at least one alkoxylated phosphate ester; and at least one borate ester. The corrosion inhibitor composition optionally comprises at least one inorganic metal salt. There is also provided an end-use coating composition comprising said corrosion inhibitor composition, and a method of providing corrosion resistance to a metal surface by applying said coating composition thereto.
    Type: Application
    Filed: January 29, 2013
    Publication date: February 12, 2015
    Applicant: CRODA, INC.
    Inventors: John Ernest Hughes, William Harry McNamee
  • Patent number: 8951363
    Abstract: The invention refers to a process for producing an anticorrosive coating in which a surface to be treated is brought into contact with an aqueous treatment solution containing chromium(III) ions and at least one phosphate compound and an organosol. The corrosive protection of metal surfaces, in particular those containing zinc and zinciferous surfaces with conversion layers is improved. The decorative and functional properties of the surfaces are retained or improved. In addition, the well-known problems associated with the use of compounds containing chromium(VI) or with multi-stage processes are avoided in which a passivation layer containing chromium ions and a sealing are applied one after the other.
    Type: Grant
    Filed: July 5, 2010
    Date of Patent: February 10, 2015
    Assignee: Atotech Deutschland GmbH
    Inventors: Udo Hofmann, Hermann Donsbach, Joerg Unger, Volker Krenzel
  • Publication number: 20150008370
    Abstract: Epoxy-polysiloxane based coating and flooring compositions exhibiting improved flexibility, and excellent weatherability and corrosion resistance after curing are described. The epoxy-polysiloxane polymer coating composition may be prepared by combining a polysiloxane, an epoxide resin material and a cure system including a blend of compounds selected from a dialkoxy functional aminosilane, a trialkoxy functional aminosilane, and an amino functional polysiloxane resin, where the blend has an average alkoxy functionality value of 2.0 to 2.
    Type: Application
    Filed: September 19, 2014
    Publication date: January 8, 2015
    Inventor: Norman R. Mowrer
  • 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
  • Publication number: 20140264179
    Abstract: An anti-corrosion composition containing at least one fatty acid ester, at least one glycol, at least one ethylene oxide/propylene oxide (EO/PO) alkoxylate, at least one polyethylene glycol ester, and at least one modified lecithin is provided. An anti-corrosion composition also is provided which contains at least one fatty acid ester, at least one glycol, at least one sorbate, and at least one modified lecithin. A method of preparing an anti-corrosion composition is also provided. At least one modified lecithin can be blended with at least one fatty acid ester, at least one glycol, at least one EO/PO alkoxylate, or at least one polyethylene glycol ester, or any combination thereof. A method of inhibiting corrosion of a metal surface including applying an anti-corrosion composition to the metal surface in an amount effective to inhibit corrosion of the metal surface is further provided.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 18, 2014
    Applicant: Buckman Laboratories International, Inc.
    Inventors: Amy E. Carter, Donald G. Jenkins, Daniel Glover, Carlton E. Hagen
  • Publication number: 20140272133
    Abstract: Corrosion inhibitor compositions are provided that can include a mixture of one or more transition metals, one or more organic phosphates, one or more inorganic phosphates, optionally a dispersant, and hydroxyphosphono acetic acid and/or salts thereof. Methods of mitigating or inhibiting corrosion of housing or conduits containing aqueous mediums are also disclosed. The methods can include the steps of pretreating the metal conduit with a mixture of one or more transition metals, one or more organic phosphates, one or more inorganic phosphates, and hydroxyphosphono acetic acid, introducing an aqueous medium into the metal conduit, and injecting a mixture of one or more transition metals, one or more organic phosphates, one or more inorganic phosphates, and hydroxyphosphono acetic acid and/or salts thereof into the aqueous medium.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Jasbir S. Gill, Danilo Zim, Matheus Paschoalino
  • Publication number: 20140272392
    Abstract: A corrosion inhibiting composition includes one or more of a plurality of carriers, each having a carrier body and an organic corrosion inhibitor, such that the carrier body encapsulates the organic corrosion inhibitor, and the carrier body is formed of a degradable material. Coatings and methods for inhibiting corrosion on a metal substrate are also described herein.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Honda Motor Co., Ltd.
    Inventors: Todd Andrew Fitz, Mariko Elaine Berg
  • Patent number: 8828273
    Abstract: Disclosed is a concentrated cooling water additive that is substantially non-corrosive within a pH range of 2-12 and contains polymeric dispersant(s) and aromatic azole(s) that exhibits improved stability, possibly as a result of the interaction of the hydrophobic groups in the dispersant polymer and the aromatic azole(s). This improved stability allows for both reduced corrosivity of the formula and reduced manufacturing costs. Benefits of the disclosed formulations include improved safety for handling and shipment, more concentrated formulations available in liquid form, reduced shipping costs and storage space, reduced heat of neutralization during product manufacture, reduced costs of manufacture due to removal of need for caustic or acid addition and reduced environmental compliance costs associated with washing and waste handling step.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: September 9, 2014
    Assignee: Chemtreat, Inc.
    Inventors: John Richardson, Dale P. Stuart
  • 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
  • Publication number: 20140134426
    Abstract: The present invention is directed to a synergistic multilayer anti-corrosion resistant coating for a metal surface, the coating having three subcoatings, a) a self assembled monolayer nanoprimer; b) a polymeric primer; c) a polymeric top coat containing microcapsules for self-healing. The present invention is further direction to systems and methods for producing the coating in situ on the metal surface. The present invention provides an economical, non-epoxy-based, corrosion coating having favorable resistance to acid and to salt water, and having favorable adhesion properties.
    Type: Application
    Filed: June 25, 2012
    Publication date: May 15, 2014
    Applicant: ROK Investment Group Limited
    Inventor: James Jackson Milham Henry
  • Patent number: 8642698
    Abstract: The invention relates to a copolymerizable emulsifier comprising (meth)acrylic acid esters, selected from compounds of the general formula (1) and (II), where: A is an acrylic group having 3 to 40 carbon atoms, x and y independently of each other are a hydrogen group or a methyl group, B is hydrogen or a sulfate or phosphate group, and n a number in the range of 0 to 40. The invention further relates to methods of using said copolymerizable emulsifier in the emulsion polymerization of olefinically unsaturated monomers to prepare polymers.
    Type: Grant
    Filed: November 26, 2009
    Date of Patent: February 4, 2014
    Assignee: Cognis IP Management GmbH
    Inventors: Ronald Klagge, Thomas Schliwka, Uwe Held, Thomas Mausberg, Katharina Hömberg, Stefan Busch, Shailesh C. Shah
  • Publication number: 20130302600
    Abstract: A process for making a corrosion-resistant metal component. The process having the steps of: combining water, at least one zinc phosphate compound and at least one chromium compound, being chromium (III) or chromium (IV) compounds, to form a first solution; separately combining at least one silicate compound with water to form a second solution; combining the first solution with the second solution such as to form a mixed aqueous solution; optionally combining the mixed aqueous solution with at least one acrylic resin to form a coating mixture; and, applying the coating mixture to a metal substrate having a zinc or zinc-alloy surface to form a coating on the metal substrate, the coating providing chemical resistance for at least 150 hours in accordance with ASTM B117 standards where the zinc or zinc-alloy coating of the metal substrate has a weight of 0.04 oz/ft2 (12.20 g/m2).
    Type: Application
    Filed: July 19, 2013
    Publication date: November 14, 2013
    Applicant: ECO-GREEN COATINGS, L.L.C.
    Inventors: William D. KRIPPES, Theodore JAROSZ, Mike SERAFINI, William CAPIZZANO
  • Patent number: 8491713
    Abstract: Described is a new a solution comprising a phosphorous compound and optionally a solderability-enhancing compound and its use in a process for increasing the solderability and corrosion resistance of a metal or metal alloy surface.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: July 23, 2013
    Assignee: Atotech Deutschland GmbH
    Inventors: Jürgen Barthelmes, Robert Ruether, Olaf Kurtz, Jana Breitfelder
  • Publication number: 20130175477
    Abstract: Corrosion inhibiting and management systems and for methods of making and using same are presented, where the corrosion systems comprise a reaction product or mixture of reaction products of medium to high carbon count phosphate ester or mixture of medium to a high carbon count phosphate esters and an amine or mixture of amines and where the reaction product or products form a partial or complete coating on surfaces of pipe, piping, pipeline, flowline, and other downhole equipment in contact with aqueous and non-aqueous fluids to protect the surfaces from corrosion at temperature up to up to 750° F. (398.9° C.), and especially, for use in applications using low to moderate temperature geothermal fluids.
    Type: Application
    Filed: January 11, 2012
    Publication date: July 11, 2013
    Applicant: Clearwater International, LLC
    Inventors: Olusegun Matthew Falana, Khalid Ali Shah, Thomas P. Wilson, JR., Frank Zamora
  • Publication number: 20130136947
    Abstract: A process for making a corrosion-resistant metal component. The process having the steps of: combining water, at least one zinc phosphate compound and at least one chromium compound, being chromium (III) or chromium (IV) compounds, to form a first solution; separately combining at least one silicate compound with water to form a second solution; combining the first solution with the second solution such as to form a mixed aqueous solution; optionally combining the mixed aqueous solution with at least one acrylic resin to form a coating mixture; and, applying the coating mixture to a metal substrate having a zinc or zinc-alloy surface to form a coating on the metal substrate, the coating providing chemical resistance for at least 150 hours in accordance with ASTM B117 standards where the zinc or zinc-alloy coating of the metal substrate has a weight of 0.04 oz/ft2 (12.20 g/m2).
    Type: Application
    Filed: November 28, 2011
    Publication date: May 30, 2013
    Applicant: ECO-GREEN COATINGS, L.L.C.
    Inventors: William D. Krippes, Theodore Jarosz, Mike Serafini, William Capizzano
  • Publication number: 20130112908
    Abstract: This invention is directed to a composition capable of imparting surface effects to a liquid by contacting the liquid with a partially fluorinated phosphate with an ammonium cation (NH2R1R2)+ wherein R1 and R2 are independently linear or branched organic groups containing at least one carboxylate moiety and one amino moiety, and optionally be substituted, interrupted, or both with oxygen, sulfur, or nitrogen-containing moieties, or with cyclic alkyl or aryl moieties containing up to 10 carbon atoms.
    Type: Application
    Filed: February 20, 2012
    Publication date: May 9, 2013
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Sheng PENG, Allison Mary YAKE, Xianjun MENG
  • Patent number: 8409478
    Abstract: The invention relates to a flame retardant composition, particularly designed for fire fighting with aerial means. The retardant composition comprises a liquid ammonium polyphosphate of chain length with a value of n between 2 and 3, n being the number of condensation groups, and an ammonium polyphosphate in powder form in suspension, with a chain length with a value of n between 100 and 1500. In addition to the above, the flame retardant composition comprises corrosion inhibitors, in particular zinc orthophosphate dihydrate, and at least one surfactant agent as wetting agent or dispensing agent, an organic or inorganic thickening agent and at least one coloring agent.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: April 2, 2013
    Assignee: Budenheim Iberica, S.L. Sociedad En Comandita
    Inventors: Vicente Mans Fibla, David Garcia Martinez
  • Patent number: 8404181
    Abstract: The present invention relates to a method of preventing or alleviating the problems associated with corrosion and to novel formulations for use in such a method.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: March 26, 2013
    Assignee: Rhodia UK Limited
    Inventors: Chris Jones, Julie Hardy
  • Patent number: 8337606
    Abstract: Described is a new a solution comprising a phosphorous compound and a solderability-enhancing compound and its use in a process for increasing the solderability and corrosion resistance of a metal or metal alloy surface.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: December 25, 2012
    Assignee: Atotech Deutschland GmbH
    Inventor: Peter Kuhlkamp
  • Patent number: 8322754
    Abstract: Coating systems which provide corrosion resistance and, optionally, lubrication, for threaded connections are disclosed. The compositions comprise a first coating composition comprising polymer matrices of polyimides or epoxies which are modified with small amounts of a fluorine containing polymer. Also present in the coating compositions are corrosion inhibiting agents and inorganic particles having a mean diameter of between approximately 10 nm and 10 ?m. Solid lubricants, which may include at least one of PTFE, HDPE, Graphite, and MoS2, are optionally added to provide the first coating with a low coefficient of friction. The coating systems may further comprise a second coating composition, comprising a solid lubricant dispersed within an epoxy resin and a solvent. The first and second coating compositions are deposited on at least a portion of at least one of the pin and box members of the threaded connections.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: December 4, 2012
    Assignee: Tenaris Connections Limited
    Inventors: Gabriel Eduardo Carcagno, Klaus Endres
  • 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: 8178004
    Abstract: A composition and method for forming a hydrophobic coating on a metallic substrate are disclosed. The composition comprises: (a) a perfluorinated acid, (b) a surfactant, (c) an organic solvent, and (d) water. The composition is applied to the metal surface, the organic solvent and water permitted to evaporate and coalesce to form a substantially continuous film that preferably is in the form of a self-assembled monolayer covalently bonded to the surface of the substrate.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: May 15, 2012
    Assignee: Aculon, Inc.
    Inventor: Eric L. Hanson
  • Publication number: 20120091398
    Abstract: The invention refers to a process for producing an anticorrosive coating in which a surface to be treated is brought into contact with an aqueous treatment solution containing chromium(III) ions and at least one phosphate compound and an organosol. The corrosive protection of metal surfaces, in particular those containing zinc and zinciferous surfaces with conversion layers is improved. The decorative and functional properties of the surfaces are retained or improved. In addition, the well-known problems associated with the use of compounds containing chromium(VI) or with multi-stage processes are avoided in which a passivation layer containing chromium ions and a sealing are applied one after the other.
    Type: Application
    Filed: July 5, 2010
    Publication date: April 19, 2012
    Inventors: Udo Hofmann, Hermann Donsbach, Joerg Unger, Volker Krenzel
  • Patent number: 8128841
    Abstract: A method and composition are provided for the operation of an evaporative cooling tower with minimal, or no, blowdown. In some embodiments, the method involves using sodium cation-exchanged softened water as makeup water for the cooling tower, providing a bypass filter for suspended solids removal from the cooling water, treating the cooling water with a composition for control of corrosion and deposition, and using an effective biocide for control of biological growth within the cooling tower system. In some embodiments, a composition is provided that comprises AMPS acrylic terpolymer, sodium silicate, phosphate ions, and polyphosphate ions. When dosed at the recommended levels, the composition controls corrosion of cooling system materials to generally acceptable levels in spite of the extremely corrosive environment resulting from the cycling of sodium cation-exchanged softened water in the cooling tower.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: March 6, 2012
    Assignee: Prochemtech International, Inc.
    Inventor: Timothy E. Keister
  • Publication number: 20120045361
    Abstract: The present invention relates to inhibition of high temperature naphthenic acid corrosion occurring in hydrocarbon processing units.
    Type: Application
    Filed: April 15, 2010
    Publication date: February 23, 2012
    Applicant: DORF KETAL CHEMICALS (I) PRIVATE LIMITED
    Inventor: Mahesh Subramaniyam
  • Publication number: 20120009762
    Abstract: A solution for semiconductor wafer dicing is disclosed. The solution suppresses the adherence of contamination residues or particles, and reduces or eliminates the corrosion of the exposed metallization areas, during the process of dicing a wafer by sawing. The solution comprises at least one organic acid and/or salt thereof; at least a surfactant and/or at least a base; and deionized water, the composition has a pH is equal or greater than 4. The solution can further comprise, a chelating agent, a defoaming agent, or a dispersing agent.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 12, 2012
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Dnyanesh Chandrakant Tamboli, Rajkumar Ramamurthi, David Barry Rennie, Madhukar Bhaskara Rao, Gautam Banerjee, Gene Everad Parris
  • Publication number: 20110193027
    Abstract: A method for inhibiting corrosion comprises the steps of providing a fluid; adding a corrosion inhibitor comprising at least one amphiphilic chemical to the fluid; and monitoring micelles presence in the fluid. A method for determining the amount of corrosion inhibitor that is sufficient to inhibit corrosion, a method for monitoring the activity of an amphiphilic chemical and a system for inhibiting corrosion in a conduit are also disclosed.
    Type: Application
    Filed: July 20, 2009
    Publication date: August 11, 2011
    Applicant: LUX INNOVATE LIMITED
    Inventors: Cameron Mackenzie, Vjera Magdalenic, Artin Moussavi, Michael Joosten, Mohsen Achour, David J. Blumer
  • 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
  • Publication number: 20110091408
    Abstract: Fluoroalkyl phosphates containing a tertiary carbon and a nonfluorinated chain are useful as surfactants and additives. The f can be used to alter a surface property of a medium and to provide resistance to blocking, open time extension, or oil repellency to a substrate.
    Type: Application
    Filed: October 20, 2009
    Publication date: April 21, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Anilkumar Raghavanpillai
  • Patent number: 7910024
    Abstract: Compositions and methods are described for inhibiting corrosion of corrodible metals present in contact with water in cooling water and other water storage systems. The compositions include concentrated stannous salts and agents to solubilize such salts.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: March 22, 2011
    Assignee: A.S. Inc.
    Inventors: William E. Stapp, Gary Westlund
  • Patent number: 7803278
    Abstract: The present invention provides a formulation for use in the treatment of corrosion and metal sulphide scale deposits in aqueous systems, said formulation comprising a tetrakis (hydroxyorgano) phosphonium salt (THP+ salt) and a primary, secondary or tertiary alcohol having an acetylenic bond in the carbon backbone. The invention also provides the use of such a formulation for treating corrosion of mild steel, copper or aluminium, and a method for treatment of an aqueous system containing or in contact with a metal sulphide scale while concomitantly inhibiting the corrosion of surfaces in contact with said aqueous system, which method comprises the addition to said aqueous system of a scale and corrosion inhibiting amount of such a formulation.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: September 28, 2010
    Assignee: Rhodia Operations
    Inventors: Robert Eric Talbot, Jason Grech
  • Publication number: 20100196727
    Abstract: Described is a new a solution comprising a phosphorous compound and a solderability-enhancing compound and its use in a process for increasing the solderability and corrosion resistance of a metal or metal alloy surface.
    Type: Application
    Filed: July 10, 2008
    Publication date: August 5, 2010
    Applicant: ATOTECH DEUTSCHLAND GMBH
    Inventor: Peter Kuhlkamp
  • Publication number: 20100111756
    Abstract: Methods and compositions are provided for corrosion inhibition treatment of aqueous systems such as cooling water systems. The methods include conjoint use of a polyvalent metal ion, such as Al or Mn and a corrosion inhibitor/deposit control agent (DCA) to the water system. The corrosion inhibitor DCA agent may be an organic compound such as a hydroxyacid, phosphonocarboxylic acid, polyhydroxysuccinic acid, or polymaleic acid or anhydride.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 6, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Rosa Crovetto, Claudia C. Pierce, Philip D. Deck
  • 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
  • Publication number: 20090184287
    Abstract: The sarcosine compounds used as a corrosion inhibitor according to the present invention include sarcosine and salt compounds thereof. The corrosion inhibitor is used in chemical mechanical polishing compositions or post CMP clean agents, which forms a protective film on the surface of a work piece to prevent the work piece from corrosion in chemical mechanical polishing, and thus common residue defect on the surface of a work piece due to the use of a conventional corrosion inhibitor (e.g. benzotriazole (BTA)) can be improved or the surface of a work piece can be protected from corrosion in post-CMP cleaning.
    Type: Application
    Filed: January 23, 2008
    Publication date: July 23, 2009
    Applicant: UWIZ Technology Co., Ltd.
    Inventor: SONG-YUAN CHANG
  • Patent number: 7435359
    Abstract: An anti-corrosion composition for use with a liquid or the liquid resulting from the addition of components is provided. The composition can include an acid, a phosphate ester of an alcohol, an inorganic phosphate, a salt of polyacrylates and a salt of an organophosphonate. The composition can be used with anti-freeze compositions or heat transfer fluids and advantageously exhibits enhanced corrosion resistance properties. A heat transfer medium is also provide, having water, glycol, an ester of a phosphoric acid, a phosphate salt and an acid, wherein the medium is a GRAS composition capable of satisfying ASTM 1384 and 4340.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: October 14, 2008
    Assignee: Hercules Chemical Company Incorporated
    Inventor: Fred R. Scholer
  • Patent number: 7341677
    Abstract: A non-carcinogenic corrosion inhibiting additive includes an anodic corrosion inhibitor and/or a cathodic corrosion inhibitor and a solubility enhancer for the inhibitors in the form of a metal complexing agent.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: March 11, 2008
    Assignee: United Technologies Corporation
    Inventors: Xiaomei Yu, Weilong Zhang, Thomas Garosshen, Promila Bhatia, Mark Jaworowski, Foster Lamm, Xia Tang, Amy Besing, Mike A. Kryzman, Xiaoyuan Chang
  • Patent number: 6953537
    Abstract: A corrosion inhibitor for use with Urea Ammonium Nitrate solutions is disclosed, comprising a blend of molybdate and one or more of the inorganic phosphates (including phosphates, polyphosphates, and pyrophosphates) and organic phosphates or phosphonates. Inorganic phosphates include, but are not limited to, SHMP (Sodium Hexametaphosphate) and TKPP (Tetra-Potassium Pyrophosphate). There are numerous other inorganic phosphates that will also serve as suitable secondary inhibitors. Organic phosphates or phosphonates include, but are not limited to, HEDP (1-Hydroxyethylidine-1,1-diphosphonic acid; also known as ethanol diphosphonate, acetodiphosphonic acid, or etidronic acid), ATMP or AMP (aminotri(methylenephosphonic acid)), PBTC (Phosphonobutane tricarboxylic acid), DETPMP (Diethylenetriaminepenta(methylene phosphonic acid)), and HPA (hydroxyphosphono acetic acid). There are numerous other organic phosphates and phosphonates that will also serve as suitable secondary inhibitors.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: October 11, 2005
    Inventors: Scott David Trahan, Eric Paul Mistretta
  • Patent number: 6893680
    Abstract: The invention relates to a coating composition demonstrating improved adhesion and method for improving adhesion of a coating composition to metal. The coating and method of the invention provide improved adhesion of a coating when coating is applied directly over metal substrates, especially untreated metal substrates such as galvanized steel, unsanded aluminum and unsanded cold-rolled steel.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: May 17, 2005
    Assignee: BASF Corporation
    Inventor: David L. Newton
  • Patent number: 6866797
    Abstract: A class of quaternary ammonium compounds are found to be effective as corrosion inhibitors. These quaternary ammonium compounds may be used alone or in combination with additional components. For example, phosphate esters can be used with the quaternary ammonium compounds. Moreover, thiocarbonyl compounds can also be added to the corrosion inhibitor compositions. These corrosion inhibitors are effective against ferrous metal corrosion, especially under downhole conditions.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: March 15, 2005
    Assignee: BJ Services Company
    Inventors: Richard L. Martin, Gene F. Brock, James B. Dobbs
  • Patent number: 6846452
    Abstract: This invention relates to a composition and a method for inhibiting the formation of scale, particularly complex scale, in an aqueous system where more than one type of scale is present. The scale typically present in the aqueous system includes silica, silicates, and carbonates. The scale inhibiting composition comprises (1) 2-phosphonobutane-1,2,4-tricarboxylic acid and salts thereof, and (2) a copolymer of (1) one or more allyloxybenzenesulfonate monomers, and (2) one or more water-soluble acrylic monomers, substituted acrylic monomers, or mixtures thereof.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: January 25, 2005
    Assignee: Ashland Inc.
    Inventors: Pavol Kmec, Dwight E. Emerich
  • Patent number: 6814930
    Abstract: A white rust inhibiting composition and method of inhibiting white rust for evaporative water coolers are disclosed. The composition includes, in combination, a blend of one or more organophosphorus compounds and one or more tannin compounds.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: November 9, 2004
    Inventors: Michael T. Oldsberg, Bruce D. Busch
  • Patent number: 6814885
    Abstract: A scale and corrosion inhibitor for use in the treatment of water comprises at least one oxyalkylene unit and at least one phosphonate unit (e.g. a unit derived prom a mono- or di-phosphonic acid such as VPA or VDPA). Inhibitors according to the present invention have been found to exhibit both scale-inhibiting and corrosion-inhibiting properties, especially in the treatment of cooling water and water used in oilfield applications.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: November 9, 2004
    Assignee: Rhodia Consumer Specialties Limited
    Inventors: Gary Woodward, Graham Philip Otter, Keith Philip Davis, Robert Eric Talbot
  • Patent number: 6780256
    Abstract: An aqueous solution and method for applying the solution to a metal surface form a zinc phosphate coating on the metal surface. The zinc phosphate coating minimizes corrosion and improves adhesion of subsequently coated materials such as sealants and paints. The solution of the composition and method of application consume free acidity otherwise left on the metal surface, and obviate the need for subsequent rinsing or extensive drying or stoving operations. The composition includes an aqueous solution including water, a zinc source, phosphoric acid, a polyhydric compound (preferably pentaerythritol), a metal salt, and optionally, an oxidizer.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: August 24, 2004
    Assignee: Bulk Chemicals, Inc.
    Inventor: José B. Rivera
  • Patent number: 6706214
    Abstract: A composition and process for inhibiting the corrosion of metallic substrates is revealed. The process utilizes an aqueous treatment solution comprising chitosan which has been reacted with an additive selected from the group consisting of phosphorus-containing compounds and sulfur-containing compounds and mixtures thereof. More preferably, the phosphorus-containing compound is a phosphonic acid and the sulfur-containing compound is a mercapto, thio, or thienyl containing compound or a mercapto functional silane. The composition and process are particularly useful in providing corrosion protection for aluminum and aluminum alloys.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: March 16, 2004
    Inventor: Gerald Wojcik
  • Publication number: 20030230742
    Abstract: A corrosion inhibitor for use with Urea Ammonium Nitrate solutions is disclosed, comprising a blend of molybdate and one or more of the inorganic phosphates (including phosphates, polyphosphates, and pyrophosphates) and organic phosphates or phosphonates. Inorganic phosphates include, but are not limited to, SHMP (Sodium Hexametaphosphate) and TKPP (Tetra-Potassium Pyrophosphate). There are numerous other inorganic phosphates that will also serve as suitable secondary inhibitors. Organic phosphates or phosphonates include, but are not limited to, HEDP (1-Hydroxyethylidine-1,1-diphosphonic acid; also known as ethanol diphosphonate, acetodiphosphonic acid, or etidronic acid), ATMP or AMP (aminotri(methylenephosphonic acid)), PBTC (Phosphonobutane tricarboxylic acid), DETPMP (Diethylenetriaminepenta(methylene phosphonic acid)), and HPA (hydroxyphosphono acetic acid). There are numerous other organic phosphates and phosphonates that will also serve as suitable secondary inhibitors.
    Type: Application
    Filed: January 23, 2003
    Publication date: December 18, 2003
    Inventors: Scott David Trahan, Eric Paul Mistretta