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7452428 |
The invention relates to a method and coating agents used in the method which provide good adherence to and good corrosion protection of metal substrates; the coating coating agents are cross-linkable via radical polymerization. Adhesion...
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7452427 |
A conversion coating composition for coating a metal substrate is provided which imparts corrosion resistance to the underlying metal substrate. The conversion coating composition comprises an aqueous carrier and first and second rare ea...
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7422642 |
To provide a method which allows the combination of rapid formation of a chemical adsorption film with the preparation of the film which is reduced in the content of impurities and having a dense structure. A method for preparing a chemi...
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7402214 |
An aqueous composition for pretreating and depositing a coating on metal substrates is provided. The coating composition includes from about 1,500 to about 55,000 ppm based on the aqueous composition of a Group IIA dissolved metal ion, f...
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RE40406 |
A composition and method for coating and touching up a metal surface is provided. The composition contains from about 0.5 to about 240 millimoles per kilogram of a fluorometallate ion, from about 0.5 grams/liters to about 10 grams/liter ...
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7381281 |
A method of surface-treating a metal member involves heating, or heating under pressure, the metal member in an aqueous alkaline solution having a pH of 9 or more and containing a manganese compound and a chelating agent dissolved in wat...
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7344607 |
Chromate-free treatments and compositions, for applying a conversion or passivation coating to zinc coated metal surfaces. The compositions comprise a polyamidoamine/epihalohydrin polymer or cationic polyamine/epihalohydrin polymer compo...
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7294211 |
Conversion coatings based on cobalt are described for substrate metals such as aluminum, zinc, magnesium, titanium, cadmium, silver, copper, tin, lead, cobalt, zirconium, beryllium, or indium, their alloys, or items coated with these met...
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7294210 |
Alkyl-substituted hydroxylamines are useful as aids in the phosphating of metal substrates. In particular, the rate of phosphating and the rate at which manganese compounds are dissolved into aqueous phosphoric acid solutions may be acce...
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7232528 |
The surface treatment agent for copper and copper alloys contains hydrogen peroxide, a mineral acid, an azole compound, silver ion and a halide ion. The surface treatment agent for copper and copper alloys is useful in the production of ...
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7232478 |
An adhesion promotion process and composition for enhancing adhesion between a copper conducting layer and a dielectric material during manufacture of a printed circuit board. The composition contains a corrosion inhibitor, an inorganic ...
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7208054 |
A concentrated solution (liquid concentrate) for preparing a surface conditioner, a surface conditioner (a treatment solution for preparing a surface), which have the excellent stability of dispersion and a method of a surface conditioni...
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7208053 |
Metallic surfaces are coated with an aqueous, acidic phosphate solution containing 10 to 60 g/l zinc, 0.5 to 40 g/l manganese, 50 to 300 g/l phosphate ions calculated as P 2 O 5 , and optionally other components.
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7204871 |
A process for forming a coating on a metal substrate includes contacting the substrate with a molybdate solution having a pH of between 3.5 and 5 inclusive containing an acid with the proviso that the acid is not nitric acid. The substra...
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7135075 |
An aqueous solution for depositing an inorganic corrosion resistant coating on a metal substrate is disclosed. The aqueous solution comprises a film-forming agent, a supplemental anion, and a substrate activator. The film-forming agent i...
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7045024 |
A method employing oxide film conversion coatings prepared using ferrate (VI) as the oxidizing agent is disclosed. Metal substrates or surfaces, such as aluminum, aluminum alloys or other metals, are contacted with an aqueous solution co...
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7037384 |
A composition for treating the surface of a ferrous metal. The composition comprises aluminum sulfate, boric acid or a boric acid precursor, and polycarboxylic acid or salt thereof. Treatment of the ferrous metal with an aqueous solution...
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7018486 |
An acidic aqueous solution containing a water soluble trivalent chromium compound is provided with a additive for improving corrosion resistance and reducing precipitation of trivalent chromium over time. A suitable additive is nitrilotr...
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7005056 |
A method for inhibiting corrosion, e.g., pitting corrosion, of alloys is provided. Particularly, the method comprises contacting at least a portion of a surface of the alloy with an aqueous solution comprising a salt of one or more rare ...
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6991688 |
A method for forming a zinc oxalate coating on the surface of a strip or sheet of metal covered with a zinc or zinc alloy coating other than zinc/iron coatings, with the aid of an aqueous solution consisting of oxalic acid having a conce...
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6929705 |
The present invention relates to metallic sheets having an improved antimicrobial property and also related to a method of manufacturing such sheets. More particularly, it relates to the continuous coating on metallic sheets with a resin...
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6916546 |
The invention relates to the production of protective coatings with a dark color by pickling rolled flat objects, made from titanium zinc, for use in construction. The flat objects are pickled in an aqueous pickling bath containing a mix...
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6899956 |
This invention includes improvements to a method for forming a chemical conversion coating on ferrous metal substrates, to the chemical solutions used in the coating and to the articles coated thereby. A first oxidation applies a molecul...
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6899769 |
This invention is a method for forming a chemical conversion coating on ferrous metal substrates, the chemical solutions used in the coating and the articles coated thereby. By modifying and combining the features of two existing, but he...
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6881279 |
A chemically and thermally stable chromate free aqueous liquid treatment for metals, especially aluminum, that imparts corrosion resistance as good as that from conventional chromate containing treatments, contains water and a fluoroacid...
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6878217 |
The chemical conversion film containing, at least as the constituent components thereof, (a) at least one of the metals selected from molybdenum, zirconium, vanadium, and tungsten; (b) a rare earth metal constituting the magnet; and (c) ...
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6852369 |
Methods for preventing dissolution of solid substrates, such as metal leaching from coal or corrosion of metal surfaces, are provided. The method comprises coating the solid substrate with a chelate ligand having the general structure:
...
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6818313 |
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 coa...
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6794046 |
An article made of magnesium or its alloys, some or all of whose surface has a conversion coating, the conversion coating comprising MgO, Mn 2 O 3 and MnO 2 plus at least one oxide from the group consisting of vanadium, molybdenum and ...
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6773516 |
An aqueous acidic solution for forming a rare earth element containing conversion coating on the surface of a metal, said solution being chromate-free and including effective quantities of at least one rare earth element (as herein defin...
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6767413 |
The present invention provides a non-chromium metal surface treating agent which has excellent adhesion with a coating and corrosion resistance, and also has excellent workability and stability. A metal surface treating agent comprising ...
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6764553 |
Corrosion resistant, hydrophilic coatings on the surface of aluminum and aluminum alloys may be formed using aqueous compositions containing fluorometallates such as H 2 TiF 6 or H 2 ZrF 6 and vanadium compounds such as decavanadates. ...
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6755918 |
The present invention discloses a method for treating magnesium alloys by chemical conversion. This method can improve corrosion resistance and paint adhesion of magnesium alloys, and produces an admirable appearance. Additionally, the m...
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6755917 |
An aqueous acidic solution for forming a conversion coating on the surface of a metallic material, said solution containing at least one rare earth element (as herein defined) containing species, an accelerator additive selected from the...
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6753039 |
The disclosure relates to an electroless or electrolytic process for treating metallic surfaces. The process employs a medium comprising at least one oxygen containing water soluble compound (e.g., stannates, molybdates, vanadates and hy...
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6752878 |
A method for treating a micro-roughened metal surface to improve bonding between the metal surface and a polymer material. The method involves post-treating the micro-roughened conversion coated metal surface with an aqueous wetting agen...
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6749694 |
An aqueous composition for pretreating and depositing a coating on metal substrates is provided. The coating composition includes from about 1,500 to about 55,000 ppm based on the aqueous composition of a Group IIA dissolved metal ion, f...
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6746547 |
The invention features and methods and compositions for oxide production on a Copper substrate, e.g., a Copper or Copper alloy substrate, to provide for improved adhesion of Copper substrate to polymeric material, e.g., such as used in m...
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6740361 |
A method for coating zinc or zinc plated article with a polymerized molybdate protective coating by coating a cleaned zinc or zinc plated article with a chromium-free polymerized molybdate composition having a pH of about 1.0 to 5.0. A p...
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6733837 |
A method including forming a first layer comprising a chemical conversion coating on a metal surface; and forming a second layer on the first layer through a sol gel process. An apparatus including a metal component having at least one s...
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6719852 |
A processing solution for forming a hexavalent chromium free, corrosion resistant trivalent chromate conversion film on zinc or zinc alloy plating layers comprises a silicon compound; trivalent chromium and oxalic acid in a molar ratio r...
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6706123 |
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.
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6673164 |
A method of cold fabricating an intermetallic alloy composition, comprising steps of coating an article of an intermetallic alloy composition with a viscous medium which provides a moisture resistant barrier on the surface of the article...
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6656294 |
It is an object of the present invention to provide a processing method for preventing elution of lead in a lead-containing copper alloy to prevent lead from eluting from a faucet metal, etc. made of a lead-containing copper alloy, and a...
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6652669 |
The invention relates to a method for producing an ultraphobic surface on aluminium as the supporting material and to the resulting surface and its use. According to said method, the surface of an aluminium support is anodized, especiall...
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6648986 |
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 addi...
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6638369 |
A non-chromate conversion coating and method of applying same wherein the coating comprises a titanate, such as potassium titanate or sodium metatitanate, as a “drop-in replacement” for a chromate in an otherwise chromate-containing ...
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6613387 |
The anticorrosive properties of a coating autodeposited on a metal substrate are improved by contacting the autodeposited coating with an aqueous solution containing Group IIA or Group IIB metal cations (e.g., calcium or zinc cations) an...
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6607609 |
This invention relates to a surface treatment method comprising the steps of providing a treating solution containing a specific ammonium compound or aqueous ammonia, and magnesium silicofluoride, heating the treating solution to a tempe...
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6607587 |
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 amou...
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