Abstract: An anticorrosion ferrite-based pigment, derived from a hydrometallurgical purification process of EAF dust. EAF dust is generated in an electric arc furnace for carbon steel production by processing scrap metal, direct reduced iron and/or pre-reduced hematite, and using CaO-rich slag; from a condensation reaction of metals vapors of Fe, or Zn and of Mn, Mg, Si and/or Al, and suspended CaO particles and oxygen. The pigment contains a non-toxic amount of lead, and includes condensed metal oxides, comprising ferrites MOFe2?3, M being Zn, Fe, Mn and Mg, and combinations thereof. The condensed oxides have ferrite structures preserved from the EAF dust, and form aggregates thereof. The pigment includes CaO entrapped by the ferrite structures and being partially available to react with humid air and/or water to protect the substrate against corrosion. The pigments are coated or uncoated. They are used for antifouling or paint formulations.

Abstract: An anti-corrosion compound including a hydrocarbon grease and an aluminum/indium/zinc powder blended into the hydrocarbon grease.

Abstract: This invention provides a colored metallic pigment, which can develop a variety of colors and varied interference colors while maintaining good lightfastness, weatherfastness and hiding power, a process for producing the same, a coating composition containing the colored metallic pigment and capable of providing a coating film having excellent finished appearance, and a cosmetic preparation containing the colored metallic pigment, having excellent hiding power, and capable of providing sharp hue. The colored metallic pigment comprises at least a metallic pigment, an amorphous silicon oxide film layer provided on the surface of the metallic pigment, a metal layer provided on the surface of the amorphous silicon oxide film layer, and metallic particles provided on the surface of the metal layer. The metallic particles are provided so as to directly cover a part of the surface of the metal layer.

Abstract: Use of a boron holding grease or fluid or oil for the purpose of increasing acid resistance and/or corrosion resistance in at least one metallic component of a flexible pipe body.

Abstract: Provided is a chromium-free, low-temperature curable, metal-surface treatment composition comprising 5 to 30 parts by weight of a silane compound having an epoxy group and a silane compound having an amino group or a hydrolytic condensate thereof; 0.1 to 5 parts by weight of a vanadium compound; 0.1 to 5 parts by weight of a magnesium compound; 1 to 10 parts by weight of organic/inorganic acids; 0.05 to 2 parts by weight of a crosslinking accelerating and coupling agent; 0.01 to 1 part by weight of an antifoaming agent; 1 to 2 parts by weight of a wetting agent; and the balance of water and ethanol, based on 100 parts by weight of the total solution. In addition, a steel sheet coated with the above-described metal-surface treatment composition is low-temperature curable and provides anticorrosiveness while containing no chromium components.

Abstract: The present invention provides an aluminum white rust inhibiting composition containing alkali metal metasilicate and alkali metal hydroxide as essential components. The composition described by the present invention can provide an anti-corrosion function to vehicle aluminum parts without a separate surface process, thus reducing the manufacturing cost by reducing the number of processes and improving the durability of the vehicle aluminum parts.

Abstract: The invention relates to stabilized dispersions of precipitated silicon dioxide, to a process for production thereof and to the use thereof, especially for production of paper coatings for glossy photo paper for inkjet printing.

Abstract: A method of treatment for inhibiting sulfur-based corrosion or scaling or for removing scaling from a surface including inhibiting corrosion caused by sulfur-containing materials, reducing corrosion caused by sulfur-containing materials, inhibiting scaling caused by sulfur-containing and sulfur-containing materials in gas, liquid or solid phase or any combination of multiple phases of materials, reducing scaling caused by sulfur-containing and sulfur-containing materials, and removing scaling caused by sulfur-containing and sulfur-containing materials. The method involves contacting sulfur-containing materials with a composition containing a turpentine liquid. The method also involves contacting corrodible surfaces or surfaces prone to scaling with a composition containing a turpentine liquid.

Abstract: Methods for controlling atmospheric corrosion of a metallic surface including coating the metallic surface with a coating material containing at least one compound having at least one thioamide group.

Abstract: A method of inhibiting oxidation of a porous carbon-carbon composite is disclosed and comprises the steps of: (a) contacting the carbon-carbon composite with an oxidation inhibiting composition comprising phosphoric acid or an acid phosphate salt, at least one aluminum salt, and at least one additional metal salt, the oxidation inhibiting composition penetrating at least some of the pores of the carbon-carbon composite; and (b) heating the carbon-carbon composite at a temperature sufficient to form a deposit from the oxidation inhibiting composition within at least some of the penetrated pores of the carbon-carbon composite. The foregoing oxidation inhibiting composition and carbon-carbon composites treated by the foregoing method are also disclosed.

Abstract: An aqueous composition for depositing an inorganic corrosion resistant self-healing conversion coating on a metal substrate is disclosed. The composition is substantially free from hexavalent chromium and cobalt and includes a trivalent chromium compound, a vanadate, a mineral acid, and nano-particles formed from one of carbon and silica.

Abstract: A coating composition of oil and organofunctional silane is provided for the treatment of metal substrates. The coating composition features at least 80% by weight of oil and 0.5% to 10% by weight of organofunctional silane. The organofunctional silane includes a polysulfide silane, and the preferred metal substrate is a tire cord. When a tire cord is coated with the coating composition, it allows a tire to be formulated with lower sulfur levels and without cobalt.

Abstract: An exemplary phosphating solution is used for conversion treating a surface of a magnesium alloy workpiece. The phosphating solution includes: 2.89 gram/liter to 8.67 gram/liter of phosphoric acid, 0.3 gram/liter to 1.0 gram/liter of carbamide, 0.39 gram/liter to 1.56 gram/liter of nitric acid, 6 gram/liter to 30 gram/liter of manganese dihydrogen phosphate, and 0.2 gram/liter to 0.6 gram/liter of tannin. A method for conversion treating a surface of a magnesium alloy workpiece is also provided.

Abstract: A method of treating surfaces of a steel plate by forming an inorganic film on the surfaces of the steel plate by cathodic electrolytic treatment in an aqueous solution containing Zr and F and not containing phosphoric acid ions. Also disclosed is a method of treating surfaces of a steel plate by cathodic electrolytic treatment in aqueous solution containing Zr, F and P, and having a phosphoric acid ion concentration in a range of larger than 0 to smaller than 0.003 mols/liter calculated as PO4.

Abstract: Disclosed are replenisher compositions and methods of replenishing pretreatment compositions. The methods include adding a replenisher composition to a pretreatment composition wherein the replenisher composition includes: (a) a dissolved complex metal fluoride ion wherein the metal ion comprises a Group IIIA metal, Group IVA metal, Group IVB metal, or combinations thereof; (b) a component comprising an oxide, hydroxide, or carbonate of Group IIIA, Group IVA, Group IVB metals, or combinations thereof; and optionally (c) a dissolved metal ion comprising a Group IB metal, Group IIB metal, Group VIIB metal, Group VIII metal, Lanthanide Series metal, or combinations thereof.

Abstract: A method of manufacturing a surface treated oil well pipe comprising performing chemical conversion treatment on an oil well pipe having a steel composition containing 0.5-13% Cr using a chemical conversion treatment liquid containing zinc and phosphoric acid or manganese and phosphoric acid and further containing potassium tetraborate to form a chemical conversion film of a zinc-phosphate type or a manganese phosphate type, wherein the chemical conversion treatment is carried out in the absence of fluoride ions.

Abstract: A coated article suitable for use at elevated temperature includes a metal substrate and a coating on the substrate. The coating includes a corrosion resistant particulate component having an average coefficient of thermal expansion (CTE) greater than alumina at 1200° F. (649° C.) dispersed in a binder matrix. An aspect ratio of at least a portion of the corrosion resistant particulate component is greater than about 2:1. The binder matrix includes a silicon-containing material and/or a phosphate-containing material.

Abstract: A surface conditioning composition is provided in which a titanium phosphate compound can be stored in the state of a dispersion liquid for a long period of time while being stably present in the dispersion liquid, with favorable stability also in the bath, and with the composition being capable of forming a conversion coating film in a sufficient amount of the film even in the case of application to conversion resistant metal materials such as high-tensile steel sheets.

Abstract: A method of forming a coating comprising the steps of dissolving an silsesquioxane (e.g., one that is primarily a cage compound with 8, 10, 12, 14 or related complete cages or with partially condensed cages containing primarily Si(O)4 units in the cage) in a solvent to form an silsesquioxane solution; introducing (e.g., dissolving) an additive in the solution (e.g., the additive being selected from a rare earth compound, an acid, an organic moiety, a precious metal or compound thereof, a transition metal compound, or any combination thereof, or any of their ionic constituents); and optionally mixing a diluent with the solution to form a coating that is applied to a substrate, wherein the resulting coating forms crosslinks between resulting pendant Si(OH)x groups and a substrate surface. The present invention also contemplates coatings and coated articles consistent with the present teachings.

Abstract: Process for the passivation of metallic surfaces, in particular of strip metals, by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and at least one wax.

Abstract: The present invention relates to dispersion of surface modified inorganic particles including (a) fluid comprising a complexing agent, and (b) the surface modified inorganic particles comprising polyvalent metal ions.

Abstract: The present document describes a composite material adapted to resist degradation by an erosive agent. The composite material comprises a steel base and crystals embedded in the steel base. At least 50% of the crystals have an elongated portion. Optionally, the composite material comprises an external surface for exposure to the erosive agent. At least 50% of the elongated portions are transverse to the external surface. A filler material is also described for forming the composite material on a ferrous surface by welding. The filler material comprises iron, carbon, boron, molybdenum and silicon. Methods are also described form forming the composite material.

Abstract: The present invention relates to the addition of biocidal agents to colloidal silicate coating compositions, said compositions being useful for coating structures prepared from Portland cement compositions.

Abstract: Reliable conductive films formed of conductive nanostructures are described. The conductive films have low levels of silver complex ions and show substantially constant sheet resistance following prolonged and intense light exposure.

Abstract: A method of forming a corrosion resistant neutron absorbing coating comprising the steps of spray or deposition or sputtering or welding processing to form a composite material made of a spray or deposition or sputtering or welding material, and a neutron absorbing material. Also a corrosion resistant neutron absorbing coating comprising a composite material made of a spray or deposition or sputtering or welding material, and a neutron absorbing material.

Abstract: The present invention provides an aluminum white rust inhibiting composition containing alkali metal metasilicate and alkali metal hydroxide as essential components. The composition described by the present invention can provide an anti-corrosion function to vehicle aluminum parts without a separate surface process, thus reducing the manufacturing cost by reducing the number of processes and improving the durability of the vehicle aluminum parts.

Abstract: A method for preparing and treating the surfaces of structural components, such as structural aircraft wing and fuselage skin panels, spar, spar assemblies, ribs, stiffeners, hinges, doors, etc., and the mechanical components attached to these aforementioned structural components, with a semi-permeable, corrosion-inhibiting organic coating. The method being particularly applicable for the improved sealing process of the faying surfaces of these aircraft components.

Abstract: The present invention is directed to a coating composition comprising (i) a corrosion inhibitor and the (ii) reaction product of a calcium compound with an acid compound. The coating composition is deposited onto a substrate prior to the application of a pre-treatment coating composition (conversion coating) onto the substrate. The present invention is also directed to a substrate that comprises a coating system that comprises such a coating composition.

Abstract: The present invention relates to a coating material in the form of a suspension for the coating of metal surfaces of components prior to a thermal treatment for protection against corrosion. The coating material is hereby characterized in that the solid phase of the suspension primarily is composed of aluminum particles, and the liquid phase is composed of organic solvents and binders, the solid phase of the suspension containing at least two types of aluminum particle shapes, which are differentiated by their specific surface. In addition, a component is described, whose metal surface has been coated with a coating material according to the invention prior to thermal treatment and which has a contact resistance of <1 mOhm (DIN EN ISO 18594) after thermal treatment.

Abstract: A corrosion inhibitor composition comprising one or more organic solvents, one or more corrosion inhibitor intermediates and about 0.1 to about 20 weight percent of one or more iodide salts dissolved in said composition and methods of using the corrosion inhibitor composition in acid fracturing and matrix acid stimulation of subterranean formations.

Abstract: 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.

Abstract: A method for producing coloured layers on zinc, aluminium, magnesium or alloy surfaces. The surfaces are brought into contact with an aqueous treatment solution which is devoid of chrome, said solution containing, in total, 3-35 g/l persulfate ions and/or peroxodisulfate ions and not more than 10 g/l ammonia or ammonium ions, it has a pH value in the region of between 10-12 and a temperature in the range of between 30-80 ° C. The surfaces are brought into contact with the treatment solution for a period in the region of 0.5-5 minutes and optionally, they are covered with a coating based on organic polymers. The invention further relates to metal parts treated according to said method.

Abstract: The present invention relates to new substance combinations as vapor phase corrosion inhibitors for protecting a broad range of customary utility metals, including iron, chromium, nickel, tin, zinc, aluminum, copper, magnesium and their alloys, against corrosion in humid climates. Said substance combinations comprise (1) at least one C6 to C10 aliphatic monocarboxylic acid, (2) at least one C6 to C10 aliphatic dicarboxylic acid, and (3) a primary aromatic amide. Preferably they further comprise (4) an aliphatic ester of hydroxybenzoic acid, in particular of 4-hydroxybenzoic acid, and/or (5) a bemzimidazole, in particular a benzimidazole substituted on the benzene ring.

Abstract: This invention relates to thermal spray coatings on a metal or non-metal substrate. The thermal spray coating comprises a partially or fully stabilized ceramic coating, e.g., yttria stabilized zirconia coating, and has sufficiently high thermodynamic phase stability to provide corrosion and/or erosion resistance to the substrate. This invention also relates to methods of protecting metal and non-metal substrates by applying the thermal spray coatings. The coatings are useful, for example, in the protection of integrated circuit manufacturing equipment, internal chamber components, and electrostatic chuck manufacture.

Abstract: A composition for surface treatment of aluminium, aluminum alloys, magnesium or magnesium alloys and the treating solutions being diluted to the desired concentration are defined. The composition contains (1) compound A containing at least one metal element selected from the group consisting of Hf(IV), Ti(IV) and Zr(IV), (2) a fluorine-containing compound of sufficient amount to make fluorine exist in the composition in an amount of at least 5 times the molarity of the total molarity of the metal contained in the above-mentioned compound A, (3) at least one metal ion B selected from the group of alkaline earth metals, (4) at least one metal ion C selected from the group consisting of Al, Zn, Mg, Mn and Cu, and (5) nitric ion and the mol concentration of compound A is 0.1-50 mmol/L as the metal element of Hf(IV), Ti(IV) and Zr(IV). A metal treated with the treating method of the present invention solution has an excellent resistance to various corrosive environments.

Abstract: This invention comprises an acidic aqueous solution for treating metal substrates to improve the adhesion bonding and corrosion protection of the metal surface which comprises effective amounts of water soluble trivalent chromium compounds, fluorozirconates, effective amounts of at least one corrosion inhibitors such as benzotriazole, fluorometallic compounds, zinc compounds, thickeners, surfactants, and at least about 0.001 mole per liter of the acidic solution of a polyhydroxy and/or carboxylic compound as a stabilizing agent for the aqueous solution.

Abstract: Zn alloy particles for high corrosion resistance rust prevention paint containing, by mass %, Mg: 0.01 to 30% and having a balance of Zn and unavoidable impurities, having physical fracture facets and/or cracks of a length of 0.01 ?m or more or cracks of a depth of 0.01 ?m or more, having an average particle size of 0.05 to 200 ?m, and having an aspect ratio of maximum size and minimum size (maximum size/minimum size) of an average value of 1 to 1.5. Also, a high corrosion resistance rust prevention paint containing these Zn alloy particles and a high corrosion resistance steel material and steel structure coated with that paint.

Abstract: Coatings and methods are provided. An embodiment of the coating includes microcapsules that contain at least one of a corrosion inhibitor, a film-forming compound, and an indicator. The microcapsules are dispersed in a coating vehicle. A shell of each microcapsule breaks down in the presence of an alkaline condition, resulting from corrosion.

Abstract: 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.

Abstract: 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.

Abstract: The invention relates to an anticorrosive agent comprising zinc dust, and a second component, an organic binder and a VOC-free or VOC-compatible solvent. In order to allow the metal workpieces to be coated in a reliable and energy-saving manner at constant quality, the binder comprises silicon dioxide and alkali silicate in a molar ratio of at least 4:1. The invention also relates to a device for mixing and metering solid and liquid components of an anticorrosive agent. Said device comprises means for metering the quantities of the respective components of the anticorrosive agent, a solution tank and a mixing device. An application system for applying the anticorrosive agent to a workpiece comprises a solution tank, feeding means, at least one pressure reducer connected to the solution tank and at least one spraying device connected to the solution tank.

Abstract: This invention provides processes for inhibiting the formation of copper oxides on substantially oxide-free copper surfaces by contacting a substantially oxide-free copper surface with a bifunctional ligand that contains both a metal-coordinating group and a tertiary amine group in an aqueous solution of pH about 2 to about 5.5. A thin layer of the bifunctional ligand formed by coordination of the dialkylaminoacetonitrile to the copper surface can be removed by heating under vacuum to re-generate a substantially oxide-free copper surface.

Abstract: The invention relates to a material composition that is used for producing a coating for a component, especially a turbine component, which is made of a metallic basic material, i.e. a metal or a metal alloy. Said material composition comprises a matrix material for forming a basic coating matrix and at least one filler for adjusting desired coating proportions or coating characteristics. The matrix material can be provided especially with basic glass ceramic properties.

Abstract: Use of a composition comprising silicon, oxygen and at least one of calcium, potassium, or titanium, as a material for coating an equipment or as a constituent material of equipment, intended to be in contact with a mixture containing a chlorohydrin, hydrogen chloride and water. The use of the composition may provide a method for reducing corrosion of the equipment, for decreasing the frequency of replacement of the equipment and/or for lowering the risks linked to equipment breakage and leak. The equipment which is intended to be in contact with the mixture may be used in a process for manufacturing a chlorohydrin, in which a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture of the two, is reacted with a chlorinating agent that contains hydrogen chloride.

Abstract: A composition comprising a glass-forming binder component and a particulate corrosion resistant component. The particulate corrosion resistant component comprises corrosion resistant particulates having: a CTEp of at least about 4 and being solid at a temperature of about 1300° F. (704° C.) or greater; and a maximum median particle size defined by one of the following formulas: (a) for a CTEp of 8 or less, an MP equal to or less than (4.375×CTEp)?10; and (b) for a CTEp of greater than 8, an Mp equal to or less than (?4.375×CTEp)+60, wherein CTEp is the average CTE of the corrosion resistant particulates and wherein Mp is the median equivalent spherical diameter (ESD), in microns, of the corrosion resistant particulates. Also disclosed is an article comprising a turbine component comprising a metal substrate and a corrosion resistant coating overlaying the metal substrate, as well as a method for forming at least one layer of the corrosion resistant coating adjacent to the metal substrate.

Abstract: A trivalent-chromium chemical conversion coating from which substantially no hexavalent chromium is released. The trivalent-chromium chemical conversion coating is one formed on the surface of a zinc or zinc-alloy deposit. In a brine spray test, the chemical conversion coating has unsusceptibility to corrosion (time required for white-rust formation) of 96 hours or longer. The chemical conversion coating has a hexavalent-chromium concentration less than 0.01 ?g/cm2 in terms of metal atom amount. The amount of hexavalent chromium released after 30-day standing in a thermo-hygrostatic chamber at a temperature of 80° C. and a humidity of 95% (amount of hexavalent chromium released when the coating is immersed in 100° C. water for 10 minutes) is smaller than 0.05 ?g/cm2.

Abstract: A surface-treated metal material is obtained by forming an inorganic surface-treating layer containing at least Zr, O and F as chief components but without containing phosphoric acid ions on the surfaces of a metal by the cathodic electrolysis or by forming an inorganic surface-treating layer containing at least Zr, O and F as chief components and having an atomic ratio of P and Zr of 0?P/Zr<0.6 in the uppermost surface on the surfaces of the metal by the cathodic electrolysis at a low cost featuring high productivity, environmental friendliness, scar resistance, adhesion, workability and intimate fitting. By using a metal material obtained by coating the surface-treated metal material with an organic resin and, particularly, with a polyester resin, a metal can or a can lid exhibits excellent adhesion and corrosion resistance even at portions that are worked to a high degree. Further, the can lid exhibits excellent opening performance even after the sterilization by heating.

Abstract: In one embodiment, a corrosion inhibiting composition is formed by combining: (a) an inorganic phosphate; (b) a water soluble polyelectrolyte polymer dispersant; (c) a tri or tetracarboxylic acid; and (d) at least one additional component comprising at least one of a C4-C22 aliphatic or aromatic mono- or dicarboxylic acid, a silicate and at least one of a silicone or a silicate stabilizing siloxane compound, and mixtures thereof. Also disclosed are heat transfer fluids that include about 5% to about 99% by weight of freezing point-depressing agent; about 1% to about 95% by weight of water; and the disclosed corrosion inhibitor composition. A method of reducing corrosion in a heat transfer system containing one or more components that contain magnesium or a magnesium alloy requires that the system and the magnesium containing components be in contact with the disclosed heat transfer fluid.

Abstract: A surface treatment method for solder joint employs alkali buffer solution dipping the solder joint and the alkali buffer solution reacts with the solder joint thus yielding a passive layer. As the resultant passive layer forms on the surface of the solder joint, thereby prevents further corrosion and dissolution during aqueous cleaning or water dipping thereafter. In addition, the passive layer ensures a good appearance with maximum protection of the solder joint and also provides a sound reliability and a high testability of a finished electronic product equipped with the solder joint.

Abstract: A compound comprising Formula I, or a mixture thereof, Rf—OCFHCF2O—[CH2CH2O]x—[C3H7O]y-A??Formula I wherein Rf is CnF2n+1, n is 1 to about 6, x is a mixture of positive integers and is 4 or greater, y is 0 to about 4, provided that the ratio of y to x is equal to or less than 0.25, A is RfOCHFCF2 or CmH2m+1, and m is 1 to about 24 and its use in lowering surface tension and imparting improved surface effects is disclosed.