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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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7341677 |
A non-carcinogenic corrosion inhibiting additive includes an anodic corrosion inhibitor and/or a cathodic corrosion inhibitor and a solubility enhancer for the inhibitors in the form of a metal complexing agent.
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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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7048807 |
A cerium-based coating for corrosion resistance is applied by exposing a cleaned aluminum-based component to a corrosion-inhibiting cerium solution containing cerium ions in the presence of an oxidizing agent. The coating deposits sponta...
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7030183 |
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 liter, 2–60 g Zn, 40–300 g caustic alk...
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7029769 |
An insulation film whose requisite constituent elements are first elements and a second element. The first elements include B, P, O and Fe. The second element can generate cations whose hexa-coordinated ion radius, defined by Shannon, R....
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6887320 |
The present invention relates to a process for forming a chromate-free, corrosion resistant coating on a product formed from magnesium or a magnesium alloy and to a solution used for forming the coating. The solution has phosphate and fl...
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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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6863743 |
The present invention provides a conversion coating solution containing polymetalates and/or heteropolymetalates to oxidize the surface of various metal substrates. The polymetalates have the general formula M x O y n− , where M is sel...
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6835460 |
Excellent adhesion to subsequently applied paint or elastomer is obtained by coating a metal substrate with a phosphate conversion coating by contact with a liquid phosphating solution that contains zinc cations, phosphate anions, and at...
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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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6780256 |
An aqueous solution and method for applying the solution to a metal surface form a zinc phosphate coating on the metal surface. The zinc phosphate coating minimizes corrosion and improves adhesion of subsequently coated materials such as...
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6756092 |
A chemical conversion treatment liquid which can stably form a phosphate-type chemical conversion film on a steel material for a joint portion of an oil well steel pipe containing 0.5-13% Cr is developed. Using a chemical conversion tre...
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6753095 |
The aim of the present invention is to provide a phosphate treated zinc coated steel sheet with excellent workability. A steel sheet coated with a zinc based alloy has a phosphate treated coating on the surface thereof. The phosphate tre...
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6740424 |
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 in which coated aluminum fine powder tre...
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6692583 |
A conversion coating composition and a method of applying the conversion coating composition to magnesium and magnesium alloy articles prior to painting to prevent corrosion. The conversion coating composition comprises a source of vanad...
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6673470 |
A surface treated tin-plated steel sheet which has an alloy layer formed on the surface of a steel sheet, a tin plating layer being formed on said alloy layer with a remaining exposed portion of the alloy layer having an area of 30% or m...
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6669786 |
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 Al (III) ions on an aluminum surface, an...
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RE38285 |
A metallic surface treating solution characterized in that it is an aqueous solution at pH 0.1 to 6.5 comprising a source of at least one selected from the group consisting of Mo, W, V, Nb, Ta, Ti, Zr, Ce, Sr, and trivalent chromium, an ...
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6620263 |
The phosphate concentration, and therefore the pollution potential, of conventional high quality phosphating compositions containing zinc, manganese, and, optionally, nickel or copper cations, can be reduced without loss of corrosion pro...
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6582530 |
A non-chromate protective coating and coating solution useful for coating iron and iron alloys, particularly steel, includes V 2 O 5 , Ce 2 (MoO 4 ) 3 or SrWO 4 as a corrosion inhibitive component
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6551417 |
Tri-cation zinc phosphate conversion coating compositions are disclosed. The compositions include a phosphate component, ions of nickel, manganese, and zinc, and a glycerophosphate component, such as disodium glycerophosphate. Coatings f...
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6530999 |
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.
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6503342 |
Disclosed is a process for the production of Zintl compounds by thermal decomposition of heterometallic phosphinidene complexes. The heterometallic phosphinidene complex typically comprises at least two metals, at least one of which is s...
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6500276 |
The present invention provides a conversion coating solution containing polymetalates and/or heteropolymetalates to oxidize the surface of various metal substrates. The polymetalates have the general formula M x O y n− , where M is sel...
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6468364 |
An anticorrosion treatment of an aluminium/zinc alloy surface is disclosed. The treatment includes the steps of forming on the alloy surface a coating of a solution which contain 5-40 grams of molybdenum per litre of the solution, 2-19% ...
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6440231 |
A process for the production of a rubber-to-metal bond on steel, galvanized steel, aluminum and/or magnesium is provided The process comprises at least the following steps: a) chemical pretreatment of the metal parts, b) intermediate ri...
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6409844 |
An article of magnesium or its alloy having a surface layer containing magnesium condensed phosphate and magnesium phosphate, which can be produced by treating an article of magnesium or its alloy with a treating liquid containing 1,000 ...
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6395105 |
A process for phosphating metal surfaces in which a nitrite- and nickel-free zinc-containing phosphating solution is applied to the metal surfaces which, if desired, are then rinsed and subsequently after-rinsed with an aqueous solution ...
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6376092 |
The present invention has an object to provide a surface-treated steel sheet which has highly balanced corrosion resistance and formability, and satisfies fundamental properties required mainly for steel sheets for automobile body, and a...
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6368426 |
Concentrates containing (a) an hydroxylamine sulfate accelerator, and (b) zinc, nickel, manganese, and phosphate ions are formulated into aqueous coating solutions for treating metal surfaces, such as ferrous, zinc, and aluminum surfaces...
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6368394 |
A heat curable bonding composition for providing a coating to a solid substrate comprises water, phosphate ions, borate ions, and aluminum ions. The bonding composition has a pH in the range from about 1.4 to about 2.2, and is substantia...
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6361622 |
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 0.5 grams/liters to about 10 grams/liter...
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6342107 |
Processes and solutions for phosphating metal surfaces. The solutions are acidic aqueous phosphate solutions containing a) from 0.1 to 1.5 g/l of zinc ion; b) from 5 to 50 g/l of phosphate ion; c) from 0.2 to 4 g/l of manganese ion; d) a...
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6322906 |
A galvanized steel sheet includes a galvanized coating layer having a coating weight of from about 20 to about 60 g/m 2 formed on at least one surface of the steel sheet, and a zinc phosphate coating layer having a coating weight of fro...
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6312821 |
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 phosphate treatment. Because the zirconium...
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6306226 |
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 layer on the etched surface by a chemical...
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6287394 |
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 having a pH of below 3 and comprising a compl...
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6224657 |
A heat curable bonding composition of the present invention comprises an aqueous solution containing phosphate ion (PO 4 -3 ) and chromium(III) ion (Cr +3 , or trivalent chromium) and is substantially free of hexavalent chromium ions. Th...
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6200672 |
A surface treated metal sheet which is coated with a layer comprising, as main components, a complex and/or salt between a rare earth metal element and an organic compound having in the molecule one or more functional groups selected fro...
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6126758 |
An improved aluminide coating especially for superalloy substrates. Slurry coating compositions of eutectic metal alloy powders and of non-eutectic metal powders, including an elemental powder of a silicide-former in a heat-curable liqui...
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6096140 |
A metallic surface treating solution characterized in that it is an aqueous solution at pH 0.1 to 6.5 comprising a source of at least one selected from the group consisting of Mo, W, V, Nb, Ta, Ti, Zr, Ce, Sr, and trivalent chromium, an ...
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6074464 |
A bonding composition for a heat curable overlay coating for coating a substrate is provided. The bonding composition comprises phosphate ions, permanganate ions, at least one species of metal cation having a valence greater than +1, and...
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6068710 |
Aqueous liquid treatment compositions comprising as active ingredients boric acid and condensed phosphate ions can form iron phosphate containing conversion coatings on ferriferous substrates at rates of at least 0.3 g/m 2 /min. The coa...
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6033492 |
The uniformity of gloss of a dried autodeposited resin film on a metal surface can be increased by rinsing the wet autodeposited film initially formed with an aqueous modifying rinse having a pH from 6 to 11 and comprising from 0.2 to 10...
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6027580 |
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6027579 |
The invention provides a non-chrome rinse and method for treating a phosphate conversion-coated ferrous metal substrate. The rinse comprising zirconium ions, vanadium ions, fluoride ions, and phosphate ions in a ratio and a concentration...
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6019858 |
Concentrates containing (a) an hydroxylamine sulfate accelerator, and (b) zinc, nickel, manganese, and phosphate ions are formulated into aqueous coating solutions for treating metal surfaces, such as ferrous, zinc, and aluminum surfaces...
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