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7575694 |
Method of selectively stripping a metallic coating
A process for chemically stripping a metallic coating on an external surface of a substrate without attacking an internal surface defined by an internal passage within the substrate. Processing...
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7575644 |
Solution for treating metal surface, surface treating method, and surface treated material
A solution for treating a surface of an iron material includes (a) zirconium fluoride; (b) ion of a rare earth element and/or a compound containing a rare earth element; (c) a polyallylamine; (d)...
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7531051 |
Treating solution for metal surface treatment and a method for surface treatment
The present invention is the method for surface treatment of a metal material containing iron and/or zinc, containing component (A) and component (B); where
(A) is a compound containing at least...
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7510612 |
Chemical conversion coating agent and surface-treated metal
The present invention disclosure provides a chemical conversion coating agent which places a less burden on the environment and can apply good chemical conversion treatment to all metals such as...
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7422793 |
Non-toxic corrosion-protection rinses and seals based on rare earth elements
Rinsing or sealing solutions comprising a rare earth element and a valence stabilizer for barrier films. The treated films contain a rare earth/valence stabilizer complex. The rare earth element is...
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7407711 |
Non-toxic corrosion-protection conversion coats based on rare earth elements
Conversion coatings comprising a rare earth element and a valence stabilizer combined to form a rare earth/valence stabilizer complex are described for substrate metals. The rare earth element is...
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7402214 |
Conversion coatings including alkaline earth metal fluoride complexes
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...
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RE40406 |
Process for coating and/or touching up coatings on metallic surfaces
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...
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7291217 |
Non-toxic corrosion-protection pigments based on rare earth elements
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,...
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7156905 |
Composition and method for treating magnesium alloys
The invention relates to a composition and method for treating a magnesium alloy. The inventive composition comprises an acid aqueous solution containing niobium pentoxide, a water-soluble cerium...
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7153348 |
Hexavalent chromium-free surface-treating agent for Sn or Al-based coated steel sheet, and surface treated steel sheet
A hexavalent chromium-free surface treating agent for Sn- or Al-based coated steel sheet, comprising a trivalent chromium compound (A), a water-dispersible silica (B), a lubricity imparting...
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7030183 |
Surface treating method and surface treating agent
A plating solution containing zinc, an electrically conductive salt, an adsorbent, and at least one of mono- to hexavalent metal ions. A treatment using either a solution which contains, all per...
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6946201 |
Chromium (VI)-free conversion layer and method for producing it
A chromium(VI)-free, chromium(III)-containing and substantially coherent conversion layer on zinc or zinc alloys presenting, even in the absence of further components such as silicate, cerium,...
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6860687 |
Weldable aluminum stud
A weld-on part made of aluminum or an aluminum alloy, such as but not limited to a stud ( 1 ), which has a surface which is at least partially provided with a layer ( 5 ) which contains a titanium...
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6841009 |
Method of manufacturing a reaction vessel suitable for oxidation and decomposition processing with supercritical water
Disclosed is a reaction vessel used for oxidizing and decomposing equipment suitable for processing with supercritical water, and methods of manufacturing the reaction vessel. The reaction vessel...
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6821633 |
Non-chromate conversion coating compositions, process for conversion coating metals, and articles so coated
In at least one aspect, the invention relates to an entirely or substantially chromium-free conversion coating composition and process for conversion coating metal surfaces that provides corrosion...
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6776918 |
Titanium composite material
The invention provides a titanium composite material comprising a bonded laminate having a layer of macromolecular material bonded to the modified surface of a titanium sheet or a titanium alloy...
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6767413 |
Metal surface treating agent
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...
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6764553 |
Conversion coating compositions
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...
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6758916 |
Composition and process for treating metals
A chromium free conversion coating at least equivalent in corrosion protective quality to conventional chromate conversion coatings can be formed on metals, particularly cold rolled steel, by a...
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6740424 |
Surface coated aluminum fine powder and aqueous chromium-free corrosion inhibiting coating composition including the same
A chromium-free corrosion inhibiting coating composition, which does not utilize harmful chromium compounds and can be used for corrosion inhibition of a metal surface, comprising a slurry mixture...
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6736908 |
Composition and process for treating metal surfaces and resulting article
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...
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6679952 |
Method of coating aluminum and aluminum alloy substrates and coated articles
A method of coating aluminum and aluminum alloy substrates not only imparts a corrosion resistance comparable or even superior to that afforded by chromate treatment but also improves the adhesion...
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6672917 |
Process for improving an anodizing film, an anodizing film structure and an aluminum-alloy-made outboard engine
A process for forming an improved anodizing film on the surface of an aluminum alloy material. The film is impregnated with an amorphous substance which fills pores formed in the film during its...
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6669786 |
Self-healing non-chromate coatings for aluminum and aluminum alloys
Disclosed are processes and compositions of solutions for chromate-replacement coatings for aluminum and aluminum alloys. A preferred method includes forming a boehmite coating layer that includes...
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6663700 |
Post-treatment for metal coated substrates
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...
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6638369 |
Non-chromate conversion coatings
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...
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6632293 |
Highly activated hydrogen containing material and method for producing the material
A hydrogen containing material comprises a first compound including hydrogen containing material and fluoride, and a second compound including a metal which becomes highly reactive with hydrogen...
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6607610 |
Polyphenolamine composition and method of use
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,...
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6562148 |
Pretreatment of aluminum surfaces with chrome-free solutions
In a method for the pretreatment of work pieces having a surface made of aluminium or aluminium alloys, for non-cutting shaping and/or the connection by welding or gluing to work pieces as well as...
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6558480 |
Process and composition for conversion coating with improved heat stability
A conversion coating that does not substantially diminish the luster of a metal surface on which it is coated nor impair adhesion to the surface of lacquers and printing inks commonly used on...
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6554916 |
Treatment method for making heat exchanger hydrophilic and heat exchanger treated to be hydrophilic
A treatment method for hydrophilicity for a heat exchanger which can maintain the deodorizing property and hydrohilicity even after a long-time use, and a heat exchanger thus treated for...
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6524403 |
Non-chrome passivation process for zinc and zinc alloys
A non-chrome containing composition and process are disclosed for enhancing the corrosion resistance of zinc or zinc alloy surfaces. The composition comprises a source of titanium ions or...
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6521029 |
Pretreatment for aluminum and aluminum alloys
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...
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6511532 |
Post-treatment for anodized aluminum
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...
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6488990 |
Process for providing coatings on a metallic surface
Sequentially applying two different coatings, in two steps, to metallic surfaces. Metallic surfaces are contacted at temperatures from 10-100° C. with aqueous solution A and then with aqueous...
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6488782 |
Method of reducing corrosion potential and stress corrosion cracking susceptibility in nickel-based alloys
Method for reducing in situ the electrochemical corrosion potential and susceptibility to stress corrosion cracking of a nickel-base alloy and boiling water nuclear reactor components formed...
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6485580 |
Composition and process for treating surfaces or light metals and their alloys
An aqueous bath for treating the surfaces of light metals and light metal alloys that does not contain hexavalent chromium or produce any other highly polluting effluent and that forms a highly...
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6482274 |
Nonchromate metallic surface treating agent for PCM use, method for PCM surface treatment, and treated PCM steel panel
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...
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6475300 |
Non-chromate metallic surface-treating agent, method for surface treatment, and treated steel material
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...
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6475299 |
Conversion coating composition based on nitrogen and silicon compounds and conversion coating method using the same
Disclosed are a conversion coating composition for use in the surface treatment of a PCB and a conversion coating method using the same. The composition comprises 0.1-30 vol % of sulfuric acid;...
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6464800 |
Visible chromium- and phosphorus-free conversion coating for aluminum and its alloys
A visible colored chromium- and phosphorus-free conversion coating can be formed on a metal surface by contacting it with an aqueous liquid composition that comprises an alizarine dye and a product...
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6419731 |
Nonchromate rust preventive agent for aluminum, method of rust prevention and rust-preventive aluminum products
A nonchromate rust preventive agent for aluminum which comprises a zirconium compound, a fluoride ion, a water-soluble resin and an aluminum salt. Also an aluminum product treated with the...
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6375726 |
Corrosion resistant coatings for aluminum and aluminum alloys
This invention is for the protection and surface treatment of aluminum, aluminum alloys and coated aluminum substrates against corrosion. The aluminum substrates are treated with an acidic aqueous...
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6361622 |
Process for coating and/or touching up coatings on metal surfaces
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 kilograms of a fluorometallate ion, from about...
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6312821 |
Coating structure having corrosion resistance
The coating structure having a corrosion resistance of the invention contains a formation film formed on the surface of an aluminum alloy material. The formation film is subjected to a zirconium...
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6306226 |
Process for surface-treating an aluminum-containing metal
An aluminum-containing metal material for, for example, a heat-exchanger for motorcars is surface-treated by chemically etching an Al-containing metal material surface, forming a first protective...
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6287704 |
Chromate-free conversion layer and process for producing the same
A chromium(VI)-free, chromium(III)-containing and substantially coherent conversion layer on zinc or zinc alloys presenting, even in the absence of further components such as silicate, cerium,...
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6287394 |
Anti corrosion treatment of metal coated steel having coatings of aluminium, zinc or alloys thereof
The present invention relates to a method for treating a surface of zinc or of an alloy of zinc and aluminum, said method comprising the step of treating said surface with an aqueous solution...
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6248181 |
Composition and method for hydrophilic treatment of aluminum or aluminum alloy
Here are provided a composition for hydrophilic treatment of aluminum or aluminum alloy which can form film having persistent corrosion resistance and hydrophilicity and not generating odor, and a...
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