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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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7048822 |
A polymer battery module packaging sheet includes, as essential components, a base layer ( 61 ), an aluminum layer ( 62 ), chemical conversion coatings ( 64 a, 64 b ) coating the opposite surfaces of the aluminum layer ( 62 ), and an in...
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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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6946201 |
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, aluminum and borate, a corrosion protection ...
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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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6677053 |
A surface-treated steel sheet includes a steel sheet, an Al—Zn-base alloy plating layer formed on the steel sheet, a chemical conversion film provided on the alloy plating layer, and a concentric layer of a Cr compound that is formed o...
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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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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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6565671 |
The present invention relates to a surface-treated steel sheet coated with a chromate layer having excellent corrosion resistance, fuel resistance and seam weldability, and a chromate solution used for preparing the surface-treated steel...
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6461449 |
Metal surfaces, particularly the zinciferous surfaces of zinc-coated steel, can be given a chromate conversion coating that is superior in terms of blackening resistance and white rust resistance by drying into place on the surfaces a la...
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6387538 |
A surface-treated sheet for fuel tanks includes a cold-rolled steel sheet with a low carbon content, a zinc or zinc-based alloy plating layer formed on the steel sheet, and a chromate film coated on the zinc or zinc-based alloy plating l...
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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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6329067 |
In a chromating solution comprising a water-soluble chromium compound and a reducing agent and in which hexavalent chromium ions produced by dissolution of the water-soluble chromium compound have been partly reduced with the reducing ag...
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6294262 |
Disclosed is a composition and a process for anticorrosive treatment of the surface of non-ferrous metal. The composition is obtainable by treating an aqueous solution of CrO 3 and an inorganic acid with phosphorous acid as a reducing a...
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6287704 |
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, aluminum and borate, a corrosion protection ...
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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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6190464 |
In a chromating solution comprising a water-soluble chromium compound and a reducing agent and in which hexavalent chromium ions produced by dissolution of the water-soluble chromium compound have been partly reduced with the reducing ag...
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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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6048921 |
The present invention relates to an applicator for flowable materials which comprises a generally cylindrical housing having a chamber, a discharge opening, a wick projecting through said discharge opening, and a projecting structure for...
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5807442 |
A concentrated aqueous solution containing: (A) a component of dissolved phosphate ions; (B) a component of dissolved hexavalent chromium; (C) a component of dissolved anions selected from the group consisting of BF 4 - , AlF 6 ...
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5702759 |
The present invention relates to an applicator for flowable materials which comprises a generally cylindrical housing having a chamber, a discharge opening, a wick projecting through said discharge opening, and a projecting structure for...
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5525431 |
A zinc-base galvanized sheet steel which comprises zinc-base plated sheet steel and, formed on the plating layer surface, an inorganic covering layer which contains at least one inorganic oxide in an amount of 1-500 mg/m 2 in terms of t...
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5507884 |
A highly corrosion-resistant, highly alkali-resistant, and very paintable chromate film on the surface of a steel substrate coated with Zn-containing metal is formed by coating the substrate with an aqueous chromate bath and drying into ...
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5451271 |
The paint adhesion and corrosion resistance of surfaces of aluminum and its alloys, particularly when using a paint based on poly{vinyl chloride}, is improved by using a conversion coating solution having a pH in the range from 1.0 to 3....
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5415702 |
A method is described for preparing a black chromium-containing conversion coating on a zinc-nickel alloy surface containing at least about 8% nickel in the alloy or on a zinc-iron alloy surface. The method of the invention comprises con...
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5407749 |
A method is described for producing an iridescent chromium coating on a zinc-nickel alloy surface containing at least about 8% nickel in the alloy. The method of the invention comprises (A) contacting said surface with an aqueous acid...
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5399209 |
A chromate conversion coating with excellent cold workability and protection against corrosion after subsequent painting can be formed on metal surfaces, particularly on galvanized steel sheet, by drying in place on the metal an amount o...
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5395655 |
A chromating treatment composition particularly suitable for preparing aluminum and stainless steel for clear coating comprises water, anions containing hexavalent chromium, trivalent chromium cations, phosphate ions, dry process finely ...
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5393354 |
A method is described for producing an iridescent chromium coating on a zinc-nickel alloy surface containing at least about 8% nickel in the alloy. The method of the invention comprises (A) contacting said surface with an aqueous acid...
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5373986 |
A method of cleaning a metal surface includes covering the portion of the metal surface with a cleaning tape. The cleaning tape is chromium in combination with a fluoride ion source bound together by fibrillated polytetrafluoroethylene. ...
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5366567 |
A chromating composition including hexavalent and trivalent chromium, phosphate ions, silica, and a silane coupling agent and with ratios among its components within certain specified ranges produces a protective layer on the surface of ...
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5356679 |
A multilayer pipe surface coating for water system elements requiring high corrosion resistance includes at least one conversion layer and one thermosetting synthetic resin layer.
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5300158 |
There is provided a method of treating a copper or copper alloy substrate to provide improved resistance to both oxidation and to chemical attack. The substrate is immersed in an aqueous solution containing both chromium (VI) ion and pho...
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5242714 |
A process for forming a chromium/silica/phosphate protective conversion coating on a metal surface is improved by pretreating the surface with a composition comprising at least one of (i) H 2 TiF 6 , (ii) H 2 SiF 6 , and (iii) a deriva...
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5230750 |
A chromating liquid for forming a chromate film on a Zn or Zn-alloy plated steel sheet, is prepared by adding and mixing a silane coupling agent in a molar ratio of from 0.05 to 0.3 relative to Cr 6 + contained in an aqueous chromating l...
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5164235 |
A process for imparting tarnish resistance to copper and copper alloy materials, particularly copper foil. The material is first treated with an acidic chromium-containing solution to deposit chromium ions on said foil. Thereafter the ma...
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5141575 |
Zinciferous surfaces, particularly those of galvanized steel, may be effectively protected against corrosion, either as treated or after painting, while remaining easy to weld, by contact with an aqueous solution containing chromium in b...
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5091023 |
The resistance of chromated zinc surfaced steel objects, particularly plates and sheets, to extraction of hexavalent chromium by alkaline degreasing solutions used on the chromated objects, can be substantially increased by utilizing an ...
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5066540 |
A cured coating composition and substrate coated with the cured coating composition which coating is based upon an aqueous acid binder solution containing phosphate and chromate and/or molybdate ions into which has been dispersed a blend...
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5039360 |
A method for coating a metal surface includes heating an untreated metal surface to a temperature of about 40° C. to 250° C. and spraying a coating composition onto the hot untreated metal surface, while continuously moving the metal s...
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4975330 |
A coating composition for providing a part with improved salt spray resistance, which includes undissolved solid hexavalent chromate in an aqueous acid solution which is the reaction product of phosphate ions with ions of the group consi...
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4971636 |
A method of producing highly corrosion-resistant surface-treated steel plates where Cr elusion is small in spite of drying at low temperatures and corrosion resistance is excellent. In a process for producing surface treated steels where...
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4865653 |
The present invention relates to a composition and process for metal finishing involving the formation of zinc phosphate coatings of desired morphology on a ferrous surface. The inclusion of a hydroxylamine agent in the phosphating bath ...
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4863516 |
A coating composition based upon an aqueous acid binder solution containing phosphate and chromate and/or molybdate ions into which has been dispersed a blend of metallic powder particles of three primary dimensions and flat metal flake ...
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4838942 |
Synthetic material substrates are protected against erosion and corrosion by a lacquer type coating which is baked or bonded onto the substrate at relatively low temperatures below 200° C. to protect the synthetic material substrate aga...
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4812175 |
An aqueous acidic treating solution and process for forming a chromium-containing passivate coating on the surface of zinc or zinc-aluminum alloys to enhance bare corrosion resistance and inhibit discoloration thereof upon exposure to am...
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4761189 |
The invention relates to a process for treating metal surfaces, preferably of aluminum, aluminum alloys and steel, for the subsequent application of organic coating compositions. The metal surfaces are wetted with an aqueous bath solutio...
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4749418 |
A chromate composition and process provide improved corrosion resistance and paint adhesion for zinc surfaces. The aqueous acidic composition contains hexavalent and trivalent chromium phosphate and fluorozirconate at prescribed concentr...
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4724172 |
Corrosion and oxidation resistant coating compositions containing phosphate, chromate or molybdate and atomized aluminum powder.
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