Nickel, Iron, Cobalt, Copper, Manganese, Mercury, Or Cadmium Containing Patents (Class 252/389.53)
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Patent number: 8889038Abstract: This invention relates to wood preservatives containing copper complexes and calcium ions, zinc ions or calcium and zinc ions for protection of wood, cellulose, hemicellulose, lignocellulose, cellulosic materials and articles derived from cellulosic materials from decay caused by fungi. The calcium ions, zinc ions, or calcium and zinc ions improve the penetration of copper preservative agent into the interior of a treated material or article.Type: GrantFiled: December 18, 2008Date of Patent: November 18, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Albert Gordon Anderson, Mark A. Scialdone
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Publication number: 20140315004Abstract: Corrosion inhibition systems, including coated substrates, coating materials and corrosion inhibition compounds, and methods of making the same are disclosed. These systems and methods include corrosion inhibition compounds that are responsive to corrosion at a surface, releasing active inhibitor groups upon a corrosion stimulus. The active inhibitor groups are selected to block corrosion at the surface by inhibiting oxidation reactions, reduction reactions and/or by forming a passivation layer.Type: ApplicationFiled: April 19, 2013Publication date: October 23, 2014Applicant: The Boeing CompanyInventor: The Boeing Company
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Publication number: 20140314620Abstract: An oxygen scavenger composition is effective in reducing oxygen-induced corrosion in aqueous systems that contain water, oxygen and a significant proportion (at least about 20 wt %) of a glycol, such as monoethylene glycol (MEG). The oxygen scavenger composition contains a sulfite, a transition metal salt, and a stabilizer to enhance the kinetics of oxygen removal (scavenging). The oxygen scavenger composition is particularly suitable when the transition metal salt component includes at least two different transition metals together, such as Ni and Co, or Ni and Mn.Type: ApplicationFiled: April 19, 2013Publication date: October 23, 2014Applicant: Baker Hughes IncorporatedInventors: Marc N. Lehmann, Christopher William Bowman, Wai Yeung Mok, Neil Jonathan Barr
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Patent number: 8722147Abstract: A corrosion resistant primer coating comprises one or more corrosion inhibiting additives; and one or more nonaqueous resins, and the method of making and using the primer coating. The corrosion inhibiting additive comprises metal ferrate(IV) compounds, metal ferrate(V) compounds, metal ferrate(VI) compounds, or a mixture thereof (collectively called the ferrate compound). The ferrate compound has a low solubility in water in the range of about 0.001 ppm to about 2000 ppm at a temperature in the range of about 0° C. to 71° C.Type: GrantFiled: October 19, 2009Date of Patent: May 13, 2014Assignee: Battelle Memorial InstituteInventors: Bruce F. Monzyk, Jerad A. Ford, John T. Stropki, David N. Clark, Vinay V. Gadkari, Katherine P. Mitchell
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Patent number: 8637158Abstract: The present invention relates to a polymerizable composition and to a method for coating metal surfaces, in particular steel, galvanized and alloy-galvanized steel, and also aluminum and alloys thereof, as protection against corrosion. The polymerizable composition preferably contains less than 10% by weight of portions which are not incorporated in the cured coating. In a further aspect, the invention relates to the use of the claimed composition for coating workpieces consisting of the above-mentioned metals, particularly metal surfaces in blanking lines (coil coating). The present invention therefore also comprises the use of metal surfaces, coated according to the invention, for the production of “white goods” (household appliances), automobile bodies, electronic component housings, and for the building trade and the transport sector.Type: GrantFiled: September 23, 2009Date of Patent: January 28, 2014Assignee: Henkel AG & Co. KGaAInventors: Jörg Sander, Jürgen Stodt, Holger Endres
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Patent number: 8609048Abstract: A process for process for reducing one or more of corrosion, fouling, solvent degradation, or zeolite degradation in a process unit is described. The process includes introducing the hydrocarbon feedstream containing oxygen to an adsorbent bed containing copper and reacting the oxygen with the copper to form copper oxide and a reduced oxygen feedstream, and introducing the reduced oxygen feedstream into the process unit. A process for reducing one or more of corrosion, fouling, solvent degradation, or zeolite degradation in an aromatics extraction unit is also described.Type: GrantFiled: November 2, 2012Date of Patent: December 17, 2013
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Publication number: 20130327992Abstract: The disclosed invention relates to corrosion resistant additive composition comprising an aniline oligomer and a catalyst. The invention also relates to a coating composition comprising the foregoing corrosion resistant additive composition and a resin that is reactive with the aniline oligomer, the catalyst being present at an effective concentration to effect room temperature cure of the coating composition.Type: ApplicationFiled: June 12, 2013Publication date: December 12, 2013Applicant: CBI POLYMERS, INC.Inventors: Garry J. Edgington, Andreas Mylonakis
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Patent number: 8414931Abstract: Disclosed is a wood preservative composition comprising micronized copper and copper-amine complex, wherein the copper component of the copper amine complex is from about 5% to about 50% by weight, based upon the total weight of copper in the composition. The copper amine complex serves to avoid wood surface “chalking” that is otherwise attributable to the presence of micronized copper in copper-based slurries used to treat wood products. In addition, the copper-amine complex enhances the antimicrobial efficacy of the composition when used in wood treatment applications by facilitating cell wall penetration of the treated wood.Type: GrantFiled: September 13, 2012Date of Patent: April 9, 2013Assignee: Arch Wood Protection, Inc.Inventor: Jayesh P. Patel
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Patent number: 8293282Abstract: Disclosed is a wood preservative composition comprising micronized copper and copper-amine complex, wherein the copper component of the copper amine complex is from about 5% to about 50% by weight, based upon the total weight of copper in the composition. The copper amine complex serves to avoid wood surface “chalking” that is otherwise attributable to the presence of micronized copper in copper-based slurries used to treat wood products. In addition, the copper-amine complex enhances the antimicrobial efficacy of the composition when used in wood treatment applications by facilitating cell wall penetration of the treated wood.Type: GrantFiled: February 11, 2009Date of Patent: October 23, 2012Assignee: Arch Wood Protection, Inc.Inventor: Jayesh P. Patel
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Patent number: 8288000Abstract: Coating compositions are disclosed that include corrosion resisting particles such that the coating composition can exhibit corrosion resistance properties. Also disclosed are substrates at least partially coated with a coating deposited from such a composition and multi-component composite coatings, wherein at least one coating later is deposited from such a coating composition. Methods and apparatus for making ultrafine solid particles are also disclosed.Type: GrantFiled: August 13, 2007Date of Patent: October 16, 2012Assignee: PPG Industries Ohio, Inc.Inventors: Kaliappa G. Ragunathan, John R. Schneider
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Patent number: 8287764Abstract: 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: GrantFiled: July 20, 2009Date of Patent: October 16, 2012Assignee: Akzo Nobel N.V.Inventors: Cornelis Elizabeth Johannus Van Lare, Auke Gerardus Talma, Hendrika Petronella Maria Verlaan-Hooft
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Patent number: 8202449Abstract: A fire-retardant composition comprising an ammonium polyphosphate, a suspending agent and an effective amount of a corrosion inhibiting agent. When in solution the corrosion inhibiting agent includes at least one ion selected from the group of ions consisting of aluminum ions, ferric ions, calcium ions and magnesium ions. Said ions complex an effective amount of fluoride ions present in the fire-retardant composition to reduce the corrosiveness of the fire-retardant composition.Type: GrantFiled: October 31, 2006Date of Patent: June 19, 2012Assignee: ICL Performance Products, LPInventors: Andrew Garner, Neville James Stead
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Patent number: 8187499Abstract: The invention is related to a composition destined to protect steels against corrosion by utilization of the steel's own rust as a passivating element, the rust being removed from the steel and/or being synthetically prepared and agglutinated with a resin, where the resin can have or cannot have as an electric conductivity promoter material an intrinsically conductor polymer (ICP), in this case polyaniline, in its conducting form (emeraldine salt) or non conducting (emeraldine base), besides filler(s) and a dispersant oil.Type: GrantFiled: February 14, 2007Date of Patent: May 29, 2012Assignees: IPQM-Instituto de Pesquisas da Marinha, COPPE/UFRJ-Coordenacao dos Programas de Pos Graduacao de Engenharia da Universidade Federal do Rio de JaneiroInventors: Saint-Clair Dantas Oliveira Santos, Luiz Roberto Martins De Miranda, Bluma Guenther Soares, Paulo Roberto Araújo Martins
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Patent number: 8182888Abstract: A polymer with a backbone and an unsaturated side chain attached to the backbone. The polymer may optionally be combined with an oxidation catalyst and/or other ingredients.Type: GrantFiled: July 8, 2011Date of Patent: May 22, 2012Assignee: Valspar Sourcing, Inc.Inventors: Paul E. Share, Keith R. Pillage, Charles I. Skillman, Paul E. Fuchs
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Patent number: 8088846Abstract: 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: GrantFiled: September 18, 2008Date of Patent: January 3, 2012Assignee: King Industries, Inc.Inventors: Bing Hsieh, Ramanathan Ravichandran, Farouk Abi-Karam
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Publication number: 20110200754Abstract: A corrosion resistant primer coating comprises one or more corrosion inhibiting additives; and one or more nonaqueous resins, and the method of making and using the primer coating. The corrosion inhibiting additive comprises metal ferrate(IV) compounds, metal ferrate(V) compounds, metal ferrate(VI) compounds, or a mixture thereof (collectively called the ferrate compound). The ferrate compound has a low solubility in water in the range of about 0.001 ppm to about 2000 ppm at a temperature in the range of about 0° C. to 71° C.Type: ApplicationFiled: October 19, 2009Publication date: August 18, 2011Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Bruce F. Monzyk, Jerad A. Ford, John T. Stropki, David N. Clark, Vinay V. Gadkari, Katherine P. Mitchell
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Publication number: 20110133128Abstract: 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: ApplicationFiled: July 20, 2009Publication date: June 9, 2011Applicant: Akzo Nobel N.V.Inventors: Cornelis Elizabeth Johannus Van Lare, Auke Gerardus Talma, Hendrika Petronella Maria Verlaan-Hooft
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Patent number: 7833331Abstract: Corrosion-inhibiting pigments based on cobalt are described that contain a trivalent or tetravalent cobalt/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent cobalt ion to form a compound that is sparingly soluble in water. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent cobalt 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. Cobalt/valence stabilizer combinations are chosen based on the well-founded principles of cobalt coordination chemistry. Many cobalt-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium systems.Type: GrantFiled: August 2, 2007Date of Patent: November 16, 2010Assignee: University of DaytonInventors: Jeffrey Allen Sturgill, Andrew Wells Phelps, Joseph Thomas Swartzbaugh
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Patent number: 7794531Abstract: An organic solderability preservative (OSP) composition comprising an alkyl cyclic alcohol and an azole compound having enhanced composition stability against crystallization of the azole compound.Type: GrantFiled: January 8, 2007Date of Patent: September 14, 2010Assignee: Enthone Inc.Inventors: Joseph A. Abys, Shenliang Sun
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Publication number: 20090214883Abstract: 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: ApplicationFiled: February 23, 2009Publication date: August 27, 2009Inventors: Ard De Zeeuw, Marcel Roth, Jorg Sander
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Patent number: 7504045Abstract: A method of triggering a film containing an oxygen scavenger includes providing composition including a peroxide; and packaging the composition in a film including an oxygen scavenger; whereby the oxygen scavenger is triggered in the absence of ultraviolet light, visible light, and electron beam radiation by exposure to the peroxide or an associated enriched oxygen environment.Type: GrantFiled: June 7, 2005Date of Patent: March 17, 2009Assignee: Cryovac, Inc.Inventors: Drew Ve Speer, Frank Bryan Edwards, Scott William Beckwith, Janet Rivett, Thomas Duane Kennedy
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Patent number: 7413682Abstract: Antioxidants for industrial, automotive, and aviation lubricants and methods of making the same are provided. A process using alkylated diphenylamines; alkylated phenyl-?-naphthyl amines; and a metal catalyst to form oxidates is provided. The metal catalyst is a combination of a cation and an organic anion, for example, a metal acetylacetone. The reaction takes place in the presence of oxygen to form an antioxidant comprising oligomers of the alkylated diphenylamine and the alkylated phenyl-?-naphthyl amine, and a metal component of the catalyst.Type: GrantFiled: August 15, 2006Date of Patent: August 19, 2008Assignee: Anderol, Inc.Inventor: Eugene P. DiBella
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Patent number: 7393395Abstract: The present invention provides a surface-treating agent which improves heat resistance, adhesiveness to resin and solder wettability. The surface-treating agent for metal contains a tetrazole derivative represented by the following formula and/or a salt thereof, wherein R1 and R2 each independently represent a hydrogen atom, a halogen atom, or an alkyl group or an aryl group, etc., which each have a carbon number of not more than 10, and a group having a halogen atom, a hydroxyl group, a carboxyl group, an amino group or a mercapto group added thereto, or represent an amino group, a mercapto group, a hydroxyl group or a carboxyl group; and R3 represents a bond or an alkylene group, etc.Type: GrantFiled: January 21, 2005Date of Patent: July 1, 2008Assignee: Nippon Mining & Metals Co., Ltd.Inventors: Akihiro Aiba, Tomoharu Mimura
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Patent number: 7371459Abstract: An electrical device includes two electrodes and a conductive polymer layer, containing a mixture of a polymer and a conductive filler, separating the electrodes. A oxygen barrier material containing a thermosetting polymer component is present on the exposed surface of the conductive polymer layer that is not in contact with the laminar electrodes. The oxygen barrier material may be a polyamine-polyepoxide material, and may provide for acceptable barrier properties over a wide range of humidity levels.Type: GrantFiled: September 3, 2004Date of Patent: May 13, 2008Assignee: Tyco Electronics CorporationInventor: Matthew P. Galla
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Patent number: 7238300Abstract: A method comprises subjecting ant oxygen scavenger to actinic radiation; and then optionally storing the oxygen scavenger in a container, the container configured such that the oxygen scavenger exhibits no substantial oxygen scavenging activity while inside the container. The dosed oxygen scavenger can later be removed from the container, if stored therein, subjected to a second dose of actinic radiation to trigger the oxygen scavenger, and used in packaging oxygen sensitive products. A stored oxygen scavenger, untriggered, is also disclosed.Type: GrantFiled: October 10, 2003Date of Patent: July 3, 2007Inventors: James A. Solis, Richard Dayrit, Scott W. Beckwith, Brian L. Butler, Ronald L. Cotterman, Drew V. Speer, Thomas D. Kennedy
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Patent number: 6846437Abstract: A corrosion-inhibited fire retardant composition is provided that comprises at least one ammonium polyphosphate, at least one suspending agent, at least one phosphonate selected from a group consisting of aminotri(methylenephosphonic acid), 1-hydroxyethylidene-1,1-diphosphonic acid, hexamethylenediaminetetra(methylenephosphonic acid), diethylenetriaminepenta(methylenephosphonic acid), salts thereof, and mixtures thereof and a corrosion inhibiting system.Type: GrantFiled: December 26, 2001Date of Patent: January 25, 2005Assignee: Astaris, LLCInventors: Howard L. Vandersall, Gary H. Kegeler
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Publication number: 20040255819Abstract: A corrosion-inhibiting composition for application to a metal substrate, such as aluminum or steel, and in connection with a paint, and the synthesis of the composition. The active inhibitor constituent of the composition can be selected from the group consisting of 2,5-dimercapto-1,3,4 thiadiazole (DMTD), 2,4-dimercapto-s-triazolo-[4,3-b]-1,3-4-thiadiazole, trithiocyanuric acid (TMT), and derivatives of DMTD and TMT, including various N- or S- and N,N-,S- and N-,S-substituted derivatives of DMTD, including salts of DMTD of the general formula: M(DMTD)n, where n=1, 2 or 3, and M is a metal cation and preferably M=Zn(II), Bi(III), Co(II), Ni(II), Cd(II), Pb(II), Ag(I), Sb(III), Cu(II), Li(I), Ca(II), Sr(II), Mg(II), La(III), Ce(III), Pr(III), A1(III) or Zr(IV). DMTD, TMT, and their derivatives may also be combined with phosphates, molybdates, borates, silicates, tungstates, phosphotungstates, phosphomolybdates, cyanamides, carbonates, SiO2 and mixtures thereof.Type: ApplicationFiled: February 23, 2004Publication date: December 23, 2004Applicant: Wayne Pigment Corp.Inventor: John Sinko
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Publication number: 20040104377Abstract: 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: ApplicationFiled: July 23, 2003Publication date: June 3, 2004Inventors: Andrew Wells Phelps, Jeffrey Allen Sturgill, Joseph Thomas Swartzbaugh
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Patent number: 6630079Abstract: The present invention provides a bis(2-pyridinethiol-1-oxide) copper salt coated with one or more compounds selected from glycerin, dialkyl phthalate, lubricating oil, acrylic resin, rosin, fatty acid amide, dialkyl polysulfide, polybutene, paraffin and petrolatum. The coated copper salt does not scatter, so that it is easy to handle, and is superior in safety and workability. In addition, the copper salt does not suffer from any adverse influence on the inherent storage stability or antifouling effect by being coated. Therefore, a coating for the bottom of a ship having a superior antifouling effect and storage stability can be obtained.Type: GrantFiled: January 8, 2003Date of Patent: October 7, 2003Assignee: API CorporationInventors: Yasuhiro Kozasa, Yoshifumi Shibuya, Toshio Morishita, Yasuhiro Hidaka, Hiroyuki Akashi
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Patent number: 6620348Abstract: Fire retardant compositions comprise at least one ammonium polyphosphate, at least one suspending agent, and at least one metal ferrite. In specific embodiments, the compositions of the invention comprise zinc ferrite or magnesium ferrite.Type: GrantFiled: April 23, 2002Date of Patent: September 16, 2003Assignee: Astaris, LLCInventors: Howard L. Vandersall, Gary H. Kegeler, George J. Matousek
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Publication number: 20030129078Abstract: This invention relates to metal oxides dispersant compositions comprising (a) certain a metal oxides dispersant, and (b) an oxime. The invention also relates to a process for dispersing metal oxides in an aqueous system that involves adding the dispersant composition to the aqueous system.Type: ApplicationFiled: January 10, 2003Publication date: July 10, 2003Applicant: Ashland Inc.Inventors: Edward S. Beardwood, Kostan B. Charkhutian
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Patent number: 6551417Abstract: Tri-cation zinc phosphate conversion coating compositions are disclosed. The compositions include a phosphate component, ions of nickel, manganese, and zinc, and a glycerophosphate component, such as disodium glycerophosphate. Coatings formed from these compositions provide improved corrosion resistance to metal substrates and provide a uniform layer for the application of paint finishes. Processes of making and using these compositions are also disclosed.Type: GrantFiled: September 20, 2000Date of Patent: April 22, 2003Assignee: GE Betz, Inc.Inventors: Edward A. Rodzewich, Bruce V. Haberle, Joseph E. Murphy
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Patent number: 6544440Abstract: The present invention provides a bis(2-pyridinethiol-1-oxide) copper salt coated with one or more compounds selected from glycerin, dialkyl phthalate, lubricating oil, acrylic resin, rosin, fatty acid amide, dialkyl polysulfide, polybutene, paraffin and petrolatum. The coated copper salt does not scatter, so that it is easy to handle, and is superior in safety and workability. In addition, the copper salt does not suffer from any adverse influence on the inherent storage stability or antifouling effect by being coated. Therefore, a coating for the bottom of a ship having a superior antifouling effect and storage stability can be obtained.Type: GrantFiled: November 17, 2000Date of Patent: April 8, 2003Assignee: API CorporationInventors: Yasuhiro Kozasa, Yoshifumi Shibuya, Toshio Morishita, Yasuhiro Hidaka, Hiroyuki Akashi
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Patent number: 6506263Abstract: 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: GrantFiled: November 17, 2000Date of Patent: January 14, 2003Assignee: Houghton Metal Finishing CompanyInventors: Mores Basaly, Dana Rothwell
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Patent number: 6464899Abstract: Compositions and methods for inhibiting corrosion of metallic surfaces are disclosed. The corrosion-inhibiting compositions are cost efficient, easy to use and can be conveniently removed or replaced. The corrosion-inhibiting compositions include a putty-like base material that is pliable and has sufficient tackiness to be securely affixed to surfaces. Corrosion inhibiting compounds are combined with the base material. These compositions provide a vapor phase corrosion inhibitor for both direct and indirect contact with metallic objects.Type: GrantFiled: June 2, 2000Date of Patent: October 15, 2002Assignee: Henkel Loctite CorporationInventors: Hans E. Haas, Matthew P. Burdzy
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Patent number: 6432225Abstract: An improved process that is commercially practical for forming an oxide film cobalt conversion coating exhibiting corrosion resistance and paint adhesion properties on a substrate, where the substrate is aluminum or aluminum alloy, the process including the steps of: (a) providing an oxide film forming cobalt conversion solution comprising an aqueous reaction solution, containing no triethanolamine (TEA), prepared by reacting the following starting materials: (1) a water soluble cobalt-II salt CoX2 where X=Cl, Br, NO3, CN, SCN, ⅓PO4, ½SO4, ½CO3, formate, or acetate; (2) a water soluble complexing agent selected from the group consisting of MeNO2, MeAc, MeFm, NH4Ac, and NH4Fm where Me is Na, K, or Li; Ac is acetate; and Fm is formate; (3) an accelerator selected from the group consisting of NaClO3, NaBrO3, and NaIO3; (4) water; and (b) contacting the substrate with the aqueous reaction solution for a sufficient amount of time to oxidize the surface of the substrate, whereby the oxidType: GrantFiled: October 13, 2000Date of Patent: August 13, 2002Assignee: The Boeing CompanyInventor: Matthias P. Schriever
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Patent number: 6306201Abstract: This invention relates to a bivalent iron compound comprising a bivalent iron salt, an amino acid and a reducing material. It is known that bivalent iron salts exhibit specific effects in wide applications, for example, agricultural applications such as modification of soil quality, fishing applications such as quality preservation of fishes, medical applications such as treatment of diseases and industrial applications such as prevention of metal corrosion and purification of waste water and exhaust gas. However, the conventional bivalent iron salts suffer a problem that they cannot exhibit such effect for extended periods. This invention was successful in chemically stabilizing the bivalent iron salts by adding amino acids and reducing materials so as to sustain the effects inherent in the bivalent iron salts and to enable utilization thereof in industrial applications.Type: GrantFiled: June 7, 1999Date of Patent: October 23, 2001Assignee: I.B.E. Company, Ltd.Inventor: Shinzi Makino
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Publication number: 20010024729Abstract: The disclosure relates to the forming mineralized coatings on metal surfaces and to methods of forming such coatings. The coating can include a wide range of compounds and normally at least a portion of the coating corresponds to an amorphous phase. The coating and method are particularly usefull in providing a corrosion resistant coating or film upon a metallic surface. This aspect of the disclosure involves the formation of a corrosion resistant “mineralized” layer of tailored composition upon a metal substrate.Type: ApplicationFiled: February 20, 2001Publication date: September 27, 2001Inventors: Robert L. Heimann, Nancy M. Mcgowan, William M. Dalton, David R. Webb, David M. Price
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Patent number: 6294262Abstract: Disclosed is a composition and a process for anticorrosive treatment of the surface of non-ferrous metal. The composition is obtainable by treating an aqueous solution of CrO3 and an inorganic acid with phosphorous acid as a reducing agent until substantially 100% of hexavalent chromium contained in the starting solution is reduced.Type: GrantFiled: April 5, 1999Date of Patent: September 25, 2001Assignee: Nippon Paint Co., Ltd.Inventor: Takayuki Fukuoka
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Patent number: 6190779Abstract: The disclosure relates to the forming mineralized coatings on metal surfaces and to methods of forming such coatings. The coating can include a wide range of compounds and normally at least a portion of the coating corresponds to an amorphous phase. The coating and method are particularly useful in providing a corrosion resistant coating or film upon a metallic surface. This aspect of the disclosure involves the formation of a corrosion resistant “mineralized” layer of tailored composition upon a metal substrate.Type: GrantFiled: January 30, 1998Date of Patent: February 20, 2001Assignee: Elisha Technologies Co LLCInventors: Robert L. Heimann, Nancy M. McGowan, William M. Dalton, David R. Webb, David L. Price
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Patent number: 6183547Abstract: A composition for inhibiting corrosion of metal surfaces comprises permanganate and a very low concentration of chromium (VI). The concentration of chromium (VI) in the aqueous solution is less than about 100 micrograms per liter, and the concentration of permanganate is about 0.2% to about 20% by weight of the aqueous solution. In another embodiment of the invention, a composition for inhibiting corrosion of metal surfaces includes permanganate and acetic acid. The concentration of acetic acid in the aqueous solution is between about 0.2% and 2.0% by volume. The concentration of permanganate is about 0.2% to about 20% by weight of the aqueous solution. Other embodiments of the invention include methods of using the present sealant compositions and the resulting corrosion inhibited metal substrates. In yet another embodiment of the present invention there is provided a kit for preparing corrosion inhibiting solutions for metal treatment.Type: GrantFiled: March 5, 1999Date of Patent: February 6, 2001Assignee: The University of Notre Dame du LacInventors: Albert E. Miller, Gautam Banerjee
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Patent number: 6176907Abstract: Formulation for anti-corrosion coating materials, comprising (i) 3-30% by mass of a monomeric and/or polymeric, metal-free or metal-containing, chelate-forming compound, (ii) 10-80% by mass of a material which binds hydroxide ions, and (iii) 5-65% by mass of a conductive pigment based on carbon.Type: GrantFiled: January 19, 1999Date of Patent: January 23, 2001Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventor: Ralf Glausch