Contains Mixture Of Organic Material And At Least One Inorganic Material Or Elemental Component Thereof Patents (Class 106/14.44)
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Publication number: 20040142162Abstract: The subject of the invention is the user of MoO3 as a corrosion inhibitor, and an anti-corrosion coating composition for metal parts, characterized in that it comprises:—at least one particulate metal;—an organic solvent;—a thickener;—a silane-based binder, preferably carrying epoxy functional groups;—molybdenum oxide (MoO3);—possibly a silicate of sodium, potassium or lithium, and;—water.Type: ApplicationFiled: May 12, 2003Publication date: July 22, 2004Inventors: Etienne Maze, Carmen Mocquery, Benoit Millet, Antonio Francisco Iandoli Espinosa
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Patent number: 6764615Abstract: 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: GrantFiled: May 21, 2001Date of Patent: July 20, 2004Assignee: Cortec CorporationInventors: Boris A. Miksic, Alla Furman, Michael Hobday, Jessica Jackson, Zvjezdana Matuzic
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Patent number: 6758887Abstract: A waterborne epoxy corrosion resistant primer comprises a waterborne epoxy, a curing agent, and a non-chromate containing corrosion-inhibiting pigment.Type: GrantFiled: November 29, 2002Date of Patent: July 6, 2004Assignee: United Technologies CorporationInventor: Promila P. Bhatia
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Publication number: 20040112249Abstract: The invention relates to a corrosion inhibitor for bathing water containing chloride and sulfate. Said corrosion inhibitor can be produced by mixing a) between 10 and 40 wt % of phosphoric acid, b) between 5 and 25 wt. % of an alkali hydroxide, c) between 0.01 and 10 wt. % of zinc chloride, d) between 0.01 and 5 wt. % of aminotrimethylene phosphonic acid, and e) water to add up to 100 wt. %.Type: ApplicationFiled: October 14, 2003Publication date: June 17, 2004Inventor: Harald Artur Dietl
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Patent number: 6749945Abstract: An Ormosil composite coating that provides good corrosion and abrasion resistance of the underlying substrate. The Ormosil composite coating of the present invention is entrapped with a plurality of inorganic particles of a size greater than 1 micron to produce a coating of a sufficient, desired thickness. The coating of the present invention, generally includes an ormosil composite including a plurality of entrapped inorganic particles wherein each of the plurality of inorganic particles is at least one (1) micron in its maximum dimension but not greater than 75 microns (however, a maximum dimension of 5 microns is preferred).Type: GrantFiled: January 29, 2002Date of Patent: June 15, 2004Assignee: The Board of Regents for Oklahoma State UniversityInventors: Edward T. Knobbe, Olga Kachurina, Tammy L. Metroke
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Publication number: 20040107867Abstract: A composition for sealing at least one fluid leak in heat exchange systems comprises at least one solvent, and fibrillated fiber in an amount and of a size sufficient to become entrained in and seal the one leak. At least one corrosion inhibitor is present in an amount sufficient to aid in prevention of corrosion of at least two metals. The corrosion inhibitor is compatible with coolants having organic acid corrosion inhibiting agents therein, and with coolants having silicate corrosion inhibiting agents therein.Type: ApplicationFiled: December 10, 2002Publication date: June 10, 2004Inventors: Laurie A. Gallagher, Filipe J. Marinho, Carol S. Jeffcoate, Aleksei Gershun
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Patent number: 6736908Abstract: A metal treating composition comprising at least a specific type of dissolved and/or dispersed organic resin, a dissolved vanadium compound in which the valence of vanadium is from 3 to 5, and a dissolved compound that contains at least one of the metals Zr, Ti, Mo, W, Mn, and Ce can provide metal surfaces with superior corrosion resistance, alkali resistance, and fingerprint resistance. The composition contains no chromium to cause pollution problems and/or require pollution abatement.Type: GrantFiled: November 12, 2002Date of Patent: May 18, 2004Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ryosuke Sako, Keiichi Ueno, Takumi Honda
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Patent number: 6706123Abstract: A liquid iron phosphating concentrate is provided which contains dispersed aromatic carboxylic acid. The aromatic carboxylic acid remains dispersed in the concentrate by incorporation of a thickener in the composition.Type: GrantFiled: January 31, 2003Date of Patent: March 16, 2004Assignee: Henkel Kommanditgesellschaft auf AktienInventors: William E. Fristad, Karim I. Saad
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Patent number: 6695897Abstract: A corrosion inhibited formulation for drilling compositions consisting essentially of an environmentally friendly corrosion inhibitor blended with an alkali metal formate. The corrosion inhibitor is prepared pursuant to a process including the steps of: (1) preparing a reactant mixture comprising a fatty acid such as soya fatty acid or tall oil fatty acid with polyfunctional amines; (2) subjecting the reactant mixture to a temperature of between about 130 and 170 for a period sufficient to substantially complete the reaction to obtain a fatty acid amido amine product; (3) solubilizing the reactant product with an organic acid such as acetic to produce a product that is substantially completely soluble in aqueous solutions; and (4) blending the water soluble inhibitor salts into the buffered formate media.Type: GrantFiled: December 26, 2002Date of Patent: February 24, 2004Assignee: Cortec CorporationInventors: Boris A. Miksic, Alla Furman, Margarita Kharshan, Jostein Braaten, HÃ¥kon Leth-Olsen
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Publication number: 20040016363Abstract: A corrosion-inhibiting coating, process, and system that provides a tight, adherent zinc- or zinc-alloy coating that is directly deposited onto steel or cast iron surfaces for enhanced corrosion protection. A process for applying the coating is also provided. The process includes the application of two sequential aqueous baths. The first bath contains a precursor zinc compound while the second bath contains a reducing agent to deposit the zinc directly upon the steel or cast iron.Type: ApplicationFiled: July 24, 2002Publication date: January 29, 2004Inventors: Andrew W. Phelps, Jeffrey A. Sturgill
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Publication number: 20040011252Abstract: Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese 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. Manganese/valence stabilizer combinations are chosen based on the well-founded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems.Type: ApplicationFiled: January 13, 2003Publication date: January 22, 2004Inventors: Jeffrey A. Sturgill, Andrew Wells Phelps
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Publication number: 20040003752Abstract: A chromium-free, stable, water dispersion of zinc powder is produced by incorporation, into a zinc powder, of a silane coupling agent having a mercapto group in its molecules. The coupling agent is present in an amount ranging from 0.1 to 10 parts by weight for every 100 parts by weight of the zinc powder. The composition may be used in a water base paint.Type: ApplicationFiled: May 20, 2003Publication date: January 8, 2004Inventors: Makoto Ikegami, Makoto Homi
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Patent number: 6669764Abstract: Pretreated aluminum and aluminum alloys and the process and composition for pretreating said aluminum and its alloys to provide a coating with color recognition for identification purposes and to improved the corrosion-resistance, electrical conductivity, and adhesion properties which comprises pretreating said aluminum and its alloys with an effective amount of an acidic aqueous solution having a pH ranging from about 2.5 to 5.5 comprising water soluble trivalent chromium compounds, alkali metal hexafluorozirconates, divalent zinc compounds, alkali metal fluoro-compounds, and effective amounts of water soluble thickeners, surfactants or wetting agents.Type: GrantFiled: January 23, 2003Date of Patent: December 30, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Craig A. Matzdorf, William C. Nickerson, Jr.
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Publication number: 20030230215Abstract: Pretreated aluminum and aluminum alloys and the process and composition for pretreating said aluminum and its alloys to provide a coating with color recognition for identification purposes and to improved the corrosion-resistance, electrical conductivity, and adhesion properties which comprises pretreating said aluminum and its alloys with an effective amount of an acidic aqueous solution having a pH ranging from about 2.5 to 5.5 comprising water soluble trivalent chromium compounds, alkali metal hexafluorozirconates, divalent zinc compounds, alkali metal fluoro-compounds, and effective amounts of water soluble thickeners, surfactants or wetting agents.Type: ApplicationFiled: January 23, 2003Publication date: December 18, 2003Inventors: Craig A. Matzdorf, William C. Nickerson
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Patent number: 6663700Abstract: Aqueous compositions for post-treating metal coated substrates such as cadmium-plated steel, and zinc-nickel coated substrates and the process for using said compositions to provide a color recognizable coating and to improve the corrosion-resistance, abrasion, electrical, and adhesion properties of the coating. The post-treatment composition comprises an acidic aqueous solution having a pH ranging from about 2.5 to 5.5 and contains effective amounts of trivalent chromium compounds, alkali metal hexafluorozirconates, at least one divalent zinc compound, alkali metal fluoro-compounds, and effective amounts of water soluble thickeners, wetting agents or surfactants.Type: GrantFiled: January 23, 2003Date of Patent: December 16, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Craig A. Matzdorf, William C. Nickerson, Jr.
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Publication number: 20030221590Abstract: Corrosion-inhibiting pigments based on manganese are described that contain a heptavalent (permanganate), hexavalent (manganate), or pentavalent (manganate) compound. An inorganic or organic material is used with the heptavalent, hexavalent, or pentavalent manganese ion to form a compound that is sparingly soluble in water. Specific solubility control cations are chosen to control the release rate of heptavalent, hexavalent, or pentavalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Solubility control agents may also modify the processing and handling characteristics of the formed powders. Many permanganate or manganate compounds are presented that can equal the performance of conventional hexavalent chromium systems. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.Type: ApplicationFiled: January 13, 2003Publication date: December 4, 2003Inventors: Jeffrey A. Sturgill, Andrew Wells Phelps
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Publication number: 20030213533Abstract: A metal treating composition comprising at least a specific type of dissolved and/or dispersed organic resin, a dissolved vanadium compound in which the valence of vanadium is from 3 to 5, and a dissolved compound that contains at least one of the metals Zr, Ti, Mo, W, Mn, and Ce can provide metal surfaces with superior corrosion resistance, alkali resistance, and fingerprint resistance. The composition contains no chromium to cause pollution problems and/or require pollution abatement.Type: ApplicationFiled: November 12, 2002Publication date: November 20, 2003Inventors: Ryosuke Sako, Keiichi Ueno, Takumi Honda
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Patent number: 6648986Abstract: An acidic aqueous solution containing a water soluble trivalent chromium compound is provided with a solution stability additive for reducing precipitation of trivalent chromium over time. The concentration of the solution stability additive varies based on the complexing capability of the additive. Suitable additives for use as solution stability additives in accordance with the present invention are selected from the group consisting of acetic acid, glycolic acid, and mixtures thereof.Type: GrantFiled: May 13, 2002Date of Patent: November 18, 2003Assignee: United Technologies CorporationInventors: Xia Tang, Promila Bhatia, Joseph John Parkos, Jr., Gary M. Lomasney, Mark Jaworowski
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Patent number: 6649156Abstract: An organic sol containing: cerium oxide particles; an organic liquid phase; and at least one amphiphilic compound chosen from polyoxyethylenated alkyl ethers of carboxylic acids, polyoxyethylenated alkyl ether phosphates, dialkyl sulphosuccinates and quaternary ammonium compounds. A process for preparing the sol is characterized in that the abovementioned amphiphilic compound and the organic liquid phase are mixed together and the cerium oxide particles are then dispersed in the mixture obtained. According to a second variant, a mixture of cerium oxide and of at least one abovementioned amphiphilic compound is formed and the said mixture is then dispersed in the organic liquid phase.Type: GrantFiled: November 26, 2001Date of Patent: November 18, 2003Assignee: Rhodia ChimieInventor: Jean-Yves Chane-Ching
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Patent number: 6638370Abstract: By including nitric acid and hydroxylamine in a manganese phosphating composition and controlling the ratio of nitric to phosphoric acids and the ratio of Total Acid to Free Acid within a specified range, satisfactory manganese phosphate conversion coatings can be obtained within a reasonable time at temperatures much lower than has previously been thought necessary for operating a manganese phosphating composition with no other metal cations (except possibly for iron).Type: GrantFiled: July 26, 2002Date of Patent: October 28, 2003Assignee: Henkel Kommanditgesellschaft auf AktienInventor: Mervet S. Boulos
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Patent number: 6616739Abstract: A corrosion inhibited chloride salt is provided containing 30-38% by weight calcium chloride and up to 50% by weight based on the weight of the salt, of honey. This composition reduces the corrosivity of chloride salt up to as much as about 70% compared to that of the untreated sodium chloride solution. The corrosion-inhibited salt finds uses in a variety of applications, such as, for roadway deicing, freezeproofing, concrete additive and for dust suppression for example.Type: GrantFiled: October 29, 2002Date of Patent: September 9, 2003Assignee: General Chemical Industrial Products Inc.Inventor: James D. Spanos
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Patent number: 6607587Abstract: The present invention provides a non-chromium anticorrosive coatings suitable for metal materials comprising 0.2 to 50 g of a thiocarbonyl group-containing compound and 50 to 500 g of a water-dispersible silica without a substantial amount of a phosphate ion in one liter of a composition containing aqueous resins and water as main components, and an anticorrosive treatment using the anticorrosive coatings described above.Type: GrantFiled: November 6, 2000Date of Patent: August 19, 2003Assignees: Nippon Steel Corporation, Nippon Paint Co., Ltd.Inventors: Hiroshi Kanai, Toshiaki Shimakura
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Patent number: 6607610Abstract: The present invention relates to a composition for the treatment of metal substrates including an aqueous solution of a Group IVA metal ion, selected from the group consisting of zirconium, titanium, hafnium and mixtures thereof, and a water-soluble or water-dispersible polyphenolamine.Type: GrantFiled: October 18, 2002Date of Patent: August 19, 2003Assignee: GE Betz, Inc.Inventors: William S. Carey, Bruce Haberle, Jeffrey I. Melzer, Edward A. Rodzewich, Ping Lue, Andrew Solov
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Patent number: 6596062Abstract: Disclosed is a coating composition for DACROTIZED™ film comprising Cr-containing inorganic acid, Ni carbonate, reductant, surfactant and water which has excellent corrosion resistance, weather resistance and chemical resistance thus being widely applicable to anticorrosion treatments of metals such as various alloys, sintering metals, and the like.Type: GrantFiled: February 6, 2002Date of Patent: July 22, 2003Assignee: Hyundai Motor CompanyInventors: Bum-Goo Chung, Kwang-Wha Hong
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Patent number: 6589324Abstract: A chromium-free agent for treating metallic surface comprising the following (i)-(iv): (i) at least one of (A) a mixture of an aluminum salt and an inorganic oxide particle and (B) an aluminum-containing inorganic oxide particle comprising aluminum, oxygen and at least one element other than these two (ii) a salt of a metal other than aluminum (iii) a phosphorus compound (iv) a resin and/or a precursor thereof provided that when (i) is a mixture of an aluminum salt and an inorganic oxide particle, the equivalent ratio of phosphorus/aluminum is not less than 0.1. The agent for treating metallic surface is applied to the surface of a metal material such as steel plate, plated steel plate, alloy-plated steel plate, alloy plate, silicon steel plate, stainless steel plate, shape steel, pipe, wire material and the like, and dried to form a film superior in corrosion resistance, adhesion to a metal material and adhesion to a paint.Type: GrantFiled: April 22, 1999Date of Patent: July 8, 2003Assignee: Toyo Boseki Kabushiki KaishaInventors: Hiroaki Kamo, Yasunari Hotta, Toshiyuki Shimizu, Hisao Odashima
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Patent number: 6585812Abstract: A high current density electrogalvanizing process and composition are disclosed for reducing high current density dendrite formation and controlling high current density roughness, grain size and orientation of a zinc coating obtained from an acidic aqueous zinc salt. The process comprises adding a sulfonated condensation product of naphthalene and formaldehyde to the acidic aqueous zinc salt in an electrolytic cell and applying an electromotive force to the anode and cathode in the cell sufficient to produce a high current density on the cathode. The composition consists essentially of an acidic aqueous zinc salt aqueous in combination with a sulfonated condensation product of naphthalene and formaldehyde which is used as an antidendritic agent.Type: GrantFiled: February 25, 2002Date of Patent: July 1, 2003Assignee: Atotech USA, Inc.Inventors: Nicholas M. Martyak, John E. McCaskie
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Patent number: 6579353Abstract: A transparent coating for protecting wood, brick, stucco, glass, steel and other materials from graffiti, paint, ink, mildew, rust and salt air. The protective coating of the present invention comprises: water, paraffin wax, a corrosion inhibitor, an organic amine, and an emulsifying agent. Preferably each gallon of the transparent protective coating contains: 2308.0 g water, 621.4 g paraffin wax, 15.8 g triethanolamine, 6.5 g diethanolamine, and 85.6 g glycerine monostearate. The present invention also comprises methods for preparing the protective coating and methods of protecting surfaces from being marred by graffiti and the like using these protective coatings.Type: GrantFiled: November 13, 2001Date of Patent: June 17, 2003Inventors: Michael DeLaMater, Donal Dallas Coleman
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Publication number: 20030097957Abstract: Metal pigment particles are treated with a product resulting from the reaction between an organic phosphonic acid with an amine having at least one organic group containing at least six carbon atoms to inhibit their reactivity to water. The treated metal particles can be used in coating and ink compositions. Additionally, the treated metal particles can be used to formulate pastes and dispersions that are provided to a coatings manufacturer.Type: ApplicationFiled: October 31, 2001Publication date: May 29, 2003Applicant: Silberline Manufacturing Co., Inc.Inventors: H. Taylor Lamborn, Robert E. Souerwine, craig B. Keemer
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Patent number: 6559204Abstract: An autodepositing liquid composition comprises dispersed non-film-forming polymer particles in addition to the dispersed film forming polymer characteristic of all autodepositing liquid compositions. Preferably, the non-film-forming polymer particles are gas-tight microballoons filled with a gas such as air and have an average particle size less than 1 &mgr;m. Such particles act in the autodepositing liquid compositions and in the dried coatings formed from them as opaque white pigments, unless the coatings are heated above about 130° C., if so heated, the coatings, unless they contain other heat stable pigment, become irreversibly transparent.Type: GrantFiled: March 26, 2001Date of Patent: May 6, 2003Assignee: Henkel CorporationInventor: Rajat K. Agarwal
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Patent number: 6540934Abstract: The present provides novel deicing and anti-icing compositions which are especially adapted for and are highly useful as deicing and anti-corrosion products, especially on many surfaces which require protection against icing and corrosion, such as airport runways.Type: GrantFiled: July 13, 2001Date of Patent: April 1, 2003Assignee: Metss CorporationInventors: Richard Sapienza, William Ricks, Joseph Sanders
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Patent number: 6540845Abstract: The present invention provides an aqueous agent for treating metal surfaces capable of degreasing and forming a zinc phosphate coat simultaneously. The present metal surface treating agent includes an aqueous solution that includes water and a water-soluble organic solvent where the amount of water is larger than the amount of the water-soluble organic solvent; phosphate ions; nitrate ions; and zinc ions.Type: GrantFiled: April 25, 2002Date of Patent: April 1, 2003Assignee: Nippon Dacro Shamrock Co., Ltd.Inventors: Masaki Oyama, Hirokuni Okada
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Patent number: 6537678Abstract: A non-carcinogenic corrosion inhibiting additive includes an anodic corrosion inhibitor and a cathodic corrosion inhibitor.Type: GrantFiled: September 20, 2000Date of Patent: March 25, 2003Assignee: United Technologies CorporationInventors: John William Putnam, Mark Jaworowski
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Publication number: 20030047244Abstract: The present invention is to provide an aqueous agent for treating metal surfaces that can carry out degreasing and forming a zinc phosphate coat simultaneously.Type: ApplicationFiled: April 25, 2002Publication date: March 13, 2003Inventors: Masaki Oyama, Hirokuni Okada
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Patent number: 6530999Abstract: Phosphate conversion coatings having very fine crystal size are obtained using liquid compositions containing phosphate, zinc cations and relatively low concentrations of Co, Ni and Mn.Type: GrantFiled: October 10, 2001Date of Patent: March 11, 2003Assignee: Henkel CorporationInventors: Kevin K. Meagher, Brian B. Cuyler
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Patent number: 6527841Abstract: An aqueous composition for post-treating metal coated substrates such as cadmium-plated steel or zinc-nickel coated substrates and the process for using said composition to improve the corrosion-resistance, abrasion, and adhesion bonding properties of the metal coatings. The composition comprising an acidic aqueous solution having a pH ranging from about 2.5 to 4.5 containing effective amounts of trivalent chromium salts, an alkali metal hexafluorozirconate, at least one alkali metal fluoro-compound, and effective amounts of water soluble thickeners and/or surfactants.Type: GrantFiled: November 6, 2001Date of Patent: March 4, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Craig A. Matzdorf, Michael J. Kane, James L. Green, III
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Patent number: 6524376Abstract: An anticorrosive agent containing, as essential components, (a) urea or a urea derivative and (b) a hydroxy aromatic compound.Type: GrantFiled: January 25, 2001Date of Patent: February 25, 2003Assignee: NEC CorporationInventors: Hidemitsu Aoki, Tatsuya Koito, Kenichi Nakabeppu
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Patent number: 6521029Abstract: Pretreated aluminum and aluminum alloys and the process for pretreating said aluminum substrates to improve its corrosion-resistance, and adhesion properties which comprises pretreating said aluminums with an effective amount of an acidic aqueous solution having a pH ranging from about 2.5 to 4.5 and comprises effective amounts of a trivalent chromium compound, alkali metal hexafluorozirconates, at least one alkali metal fluoro-compound, and small but effective amounts of water soluble thickeners and/or surfactants.Type: GrantFiled: April 5, 2002Date of Patent: February 18, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Craig A Matzdorf, James L. Green, III, Michael J. Kane
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Patent number: 6514327Abstract: Described are liquid setting and hardening accelerators for hydraulic binders and such binder comprising mixtures that preferably are alkali-free and chloride-free and that do not comprise any basic features. The setting accelerators comprise as components aluminum salts, complexing agents, corrosion inhibitors and optionally inorganic and/or organic thickening or thixotropic agents. In comparison with the use of alkaline accelerators, an essential reduction in the setting time and a faster development of high compressive strengths is achieved by the accelerators of the present invention. In comparison with commercially available alkali-free accelerators solid precipitates of aluminum salts and thereby generated plugging up of the spray nozzles is avoided and the corrosion at the spraying devices is eliminated. Said advantages result in a great economic advantage due to less maintenance needed for the devices and less interruptions of work.Type: GrantFiled: October 27, 2000Date of Patent: February 4, 2003Assignee: Sika AG, vorm. Kaspar Winkler & Co.Inventors: Theodor A. Bürge, Marcel Sommer, Franz Wombacher
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Patent number: 6511532Abstract: Composition for post-treating anodized aluminum and aluminum alloys and the process for using said composition to improve the corrosion-resistance, abrasion, and adhesion bonding properties of the anodized aluminum and its alloys. The composition comprises an acidic aqueous solution having a pH ranging from about 2.5 to 4.5 containing effective amounts of trivalent chromium salts, alkali metal hexafluorozirconates, an alkali metal fluoro-compound e.g. fluoroborates and/or fluorosilicates, and effective amounts of water soluble thickeners and surfactants.Type: GrantFiled: November 6, 2001Date of Patent: January 28, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventors: Craig A. Matzdorf, Michael J. Kane, James L. Green, III
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Publication number: 20030015685Abstract: The present provides novel deicing and anti-icing compositions which are especially adapted for and are highly useful as deicing and anti-corrosion products, especially on many surfaces which require protection against icing and corrosion, such as airport runways.Type: ApplicationFiled: July 13, 2001Publication date: January 23, 2003Inventors: Richard Sapienza, William Ricks, Joseph Sanders
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Patent number: 6503304Abstract: A flowable and pumpable aqueous semifinished product of gassing stability for the production of paints and lacquers comprises water, a pre-stabilized metallic pigment and an anticorrosive pigment.Type: GrantFiled: January 16, 2001Date of Patent: January 7, 2003Assignee: ECKART-Werke Standard-Bronzepulver-Werke Carl Eckart GmbH & Co.Inventors: Andreas Korn, Robert Maul
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Patent number: 6488749Abstract: An object of the present invention is to provide an aquarous rust inhibitor having low toxicity and excellent rust resistance, which contains saturated fatty acid, saturated dicarboxylic acid and salt thereof, derivatives of ethylenediamine tetraacetic acid, tolyltriazole or benzotriazole, fatty acid metal salt, and water.Type: GrantFiled: July 10, 2001Date of Patent: December 3, 2002Inventors: Yasuo Fukutani, Kikuko Fukutani, Yukio Wada, Yoshiki Ueno, Shinya Fukushima, Eiichiro Nakayama
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Patent number: 6485550Abstract: A self-sacrifice type metal corrosion inhibitor is prepared by dispersing one or more kinds of metal powder having a greater ionization tendency than that of a metal to be treated and a water-insoluble thermoplastic resin powder in water containing a water-soluble anticorrosion agent, a surface-active agent and a thickener to from a treatment solution. The treatment solution is applied to the surface of the metal to be treated, which is heated to melt the thermoplastic resin powder and form a thermoplastic resin layer fixed to the surface of the metal. It forms a metal corrosion-inhibiting layer fixed to the surface through the thermoplastic resin, which acts as an adhesive layer.Type: GrantFiled: February 20, 2001Date of Patent: November 26, 2002Assignees: Toyographoile Ltd., Institute of Technology Precision Electric Discharge Work'sInventor: Kunihiko Hirose
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Patent number: 6485549Abstract: A corrosion resistant coating to protect metallic and polymeric composite surfaces from corrosion and water promoted deterioration that is environmentally safe and non-toxic and is applied in one coat without the use of a primer is provided. The coating comprises a tough, flexible polyurethane binder and a corrosion inhibiting pigment selected from the group consisting of zinc hydroxy phosphite, zinc phosphate, calcium ion-exchanged silica, calcium strontium zinc phosphosilicate. The coating is effective in protecting both aluminum and steel surfaces against corrosion in salt spray environments and in protecting polymeric composite materials such as ablative coatings used in aerospace against deterioration after exposure to water.Type: GrantFiled: August 2, 2000Date of Patent: November 26, 2002Assignee: USBIInventors: Howard L. Novak, James M. Klotz
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Patent number: 6482274Abstract: A nonchromate metallic surface treating agent comprising (a) a silane coupling agent and/or a hydrolytic condensation product thereof, (b) water-dispersible silica, and (c) a zirconium compound and/or a titanium compound is disclosed. The present invention also discloses a method for treating a surface of a PCM steel panel, a method of producing a PCM steel panel, and a PCM steel panel as produced by the method.Type: GrantFiled: February 27, 2001Date of Patent: November 19, 2002Assignee: Nippon Paint Co., Ltd.Inventors: Toshiaki Shimakura, Motohiro Sasaki, Katsuyoshi Yamasoe, Christian Jung
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Patent number: 6479103Abstract: Conductive and weldable anti-corrosive compositions based on (blocked) polyurethane resins, epoxy resins, together with curing agents containing nitrogen and conductive extenders are suitable for coating metal surfaces, in particular sheet steel in the coil coating process. These compositions are distinguished by a low stoving temperature, a distinct reduction in white rust on galvanized sheet steel in the salt spray test and by an improvement in the adhesion of the organic coating on the metallic substrate. These coatings furthermore also achieve adequate corrosion protection with a thin chromium coating, preferably also in Cr-free pretreatment processes. Sheet metal coated in this manner may be spot welded using any conventional processes.Type: GrantFiled: August 7, 2000Date of Patent: November 12, 2002Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Winfried Wichelhaus, Wolfgang Lorenz, Andreas Kunz, Wolfgang Krey
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Patent number: 6478860Abstract: A highly effective and storage stable conditioning treatment for metal surfaces prior to phosphating them is a suspension in water containing solid miorosize particles of at least one phosphate of a divalent or trivalent metal and an accelerant selected from the group consisting of sacoharides and their derivatives thereof, orthophosphoric acid, condensed phosphoric acids, organophosphonic acids, and polymers of vinyl acetate and/or carboxylic acid. The surface conditioning liquid composition is used simply by effecting contact between the metal and the liquid composition, and can also be used to simultaneously carry out degreasing, particularly when the conditioning liquid also contains nonionic or anionic surfactant.Type: GrantFiled: January 22, 2001Date of Patent: November 12, 2002Assignee: Henkel CorporationInventors: Takaomi Nakayama, Yasuhiko Nagashima, Kensuke Shimoda, Hirokastu Bannai
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Patent number: 6475300Abstract: A non-chromate metallic surface treating agent comprising (a) a silane coupling agent and/or a hydrolytic condensation product thereof, (b) water-dispersible silica, and (c) a zirconium compound and/or a titanium compound, and further comprising (d) a thiocarbonyl-containing compound and/or (e) a water-soluble acrylic resin is disclosed.Type: GrantFiled: February 27, 2001Date of Patent: November 5, 2002Assignee: Nippon Paint Co., Ltd.Inventors: Toshiaki Shimakura, Motohiro Sasaki, Katsuyoshi Yamasoe, Hiromasa Nomura, Hiroshi Kanai, Kouhei Ueda
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Publication number: 20020124768Abstract: A composition and process are described which are useful in treating metal surfaces, which composition comprises an oxidizer, an acid, a corrosion inhibitor, an organic nitro compound and, optionally, a benzotriazole with an electron withdrawing group in the I-position which electron withdrawing group is a stronger electron withdrawer than a hydrogen group, optionally, a source of adhesion enhancing species selected from the group consisting of molybdates, tungstates, tantalates, niobates, vanadates, isopoly or heteropoly acids of molybdenum, tungsten, tantalum, niobium, vanadium, and combinations of any of the foregoing and optionally but preferably a source of halide ions. The composition and process are useful in increasing the adhesion of metal surfaces to polymeric substances and in preserving said adhesion through temperature variation.Type: ApplicationFiled: February 27, 2002Publication date: September 12, 2002Applicant: MacDermid, Inc.Inventor: Donald Ferrier
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Publication number: 20020098345Abstract: A chromium-free agent for treating metallic surface comprising the following (i)-(iv):Type: ApplicationFiled: April 22, 1999Publication date: July 25, 2002Inventors: HIROAKI KAMO, YASUNARI HOTTA, TOSHIYUKI SHIMIZU, HISAO ODASHIMA