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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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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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7232478 |
Adhesion promotion in printed circuit boards
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...
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7186305 |
Process for improving the adhesion of polymeric materials to metal surfaces
A process is described for treating metal surfaces with a composition comprising an oxidizer, an acid, a corrosion inhibitor, an unsaturated alkyl substituted with an aromatic or non-aromatic...
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7037384 |
Lubricating chemical coating for metalworking
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...
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6905775 |
Coated aluminium workpiece
Aluminium alloy sheet having on a surface anodic oxide film and an overlying coating consisting essentially of at least one adhesion promoter excluding silanes. Sheet for architectural use carries...
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6830821 |
Passivating of tin, zinc and steel surfaces
A method for coating zinc, zinc plated, or steel articles with a hydroxy benzoic acid protective coating by coating a cleaned zinc, zinc plated, or steel with a hydoxy benzoic acid composition...
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6613390 |
Compound, non-chromium conversion coatings for aluminum alloys
The present invention relates to a compound, non-chromium conversion coating for a part formed from an aluminum alloy. The coating is formed by providing a first solution containing an anodic...
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6612746 |
Rolling apparatus having surface-treated rolling member
A rolling apparatus has a surface-treated rolling member composed of a metallic rolling element and a metallic race element which have been used with a lubricant, in which the surface of at least...
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6544353 |
Surface chemical treatment for liquid gallium or gallium alloy mirrors
The invention relates to a method of treating a liquid gallium or gallium alloy surface for prolonged use as a liquid mirror. The method of the invention comprises the steps of (a) contacting the...
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6540845 |
Aqueous metal surface treating agent
The present invention provides an aqueous agent for treating metal surfaces capable of degreasing and forming a zinc phosphate coat simultaneously. The present metal surface treating agent includes...
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6503343 |
Controlled plating on reactive metals
A direct displacement plating process provides a uniform, adherent coating of a relatively stable metal (e.g., nickel) on a highly reactive metal (e.g., aluminum) that is normally covered with a...
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6444054 |
Slurry compositions for diffusion coatings
Slurry coating compositions are provided for metal substrates, particularly nickel or cobalt-containing alloys, that enable inward-type diffusion aluminide coatings having a substantially uniform...
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6340438 |
Corrosion inhibiting admixture for concrete
A corrosion inhibiting admixture for concrete is disclosed comprising a combination of organic (amines) and inorganic (nitrites) fractions that provide a synergistic effect when present at a...
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6322898 |
Inorganic conversion coatings for ferrous substrates
The formation of passivation coatings on ferrous substrates is disclosed by heating the substrate in an aqueous 1.0 to 6.0 M basic metal hydroxide treatment bath containing SiO 2 and a...
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6190734 |
Protective treatment of a zinc or a zinc alloy surface
A method and a bath for protecting a Zn or Zn alloy surface against the corrosion and oxidation and for improving the wettability characteristics of a Zn or Zn alloy surface with a Sn solder alloy....
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6117250 |
Thiazole and thiocarbamide based chemicals for use with oxidative etchant solutions
Metal surfaces, particularly copper surfaces, which are oxidatively micro-etched to increase surface area, are provided acid-resistance by exposure to a thiazole compound and/or a thiocarbamide...
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6071435 |
Composition and process for treating a zinciferous surface
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5925174 |
Composition and process for treating the surface of copper-containing metals
An aqueous liquid composition for treating the surface of copper-containing metals is a dispersion and/or solution in water and organic solvent, at least one silane coupling agent having a...
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5624712 |
Liquid fatty acid protection of anodized aluminum
Aluminum surfaces are protected with increased corrosion resistance by anodize, and sealing with a liquid fatty acid free of flammable solvents, suitably in the presence of a heterocyclic aromatic...
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5476552 |
Surface preparation for bonding titanium
The present invention relates to a method for preparing a titanium or titum alloy surface and a primer for use in the method. The method broadly comprises the steps of grit blasting portions of the...
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5449415 |
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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5385616 |
Corrosion inhibition by formation of iron carboxylate
A method for inhibiting corrosion of a metal surface bearing a corrosion product including ferrous ions is disclosed. The method comprises applying to the surface a reaction product of an alcohol...
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5344503 |
Method of preventing oxidation of copper powder
A method of preventing oxidation of copper powder which comprises the steps of: mixing copper powder, boric acid, and a solvent to form a mixture; and drying the mixture to evaporate the...
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RE34707 |
Anticorrosion coating composition with improved stability, and coated substrate
The invention relates to an anticorrosion coating composition for a metal substrate, comprising at least: (a) a particulate metal, (b) chromic acid and/or one of its derivatives, (d) a pH...
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5288341 |
Agent and method for treating the surfaces of metals
An agent is characterized by containing a polymerizable monomer having a thiophosphoric acid dichloride group. By applying this agent to the surfaces of noble metals, much more durable and...
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5275671 |
Aqueous solutions especially for cleaning high strength steel
There are provided improved aqueous chemical cleaning compositions for removing organic and inorganic combustion residues from steel products, said compositions meeting the hydrogen embrittlement...
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5259884 |
Process adapted to provide on a metallic substrate a protective coating based on hexavalent chromium, bath used in the said process and commercial form of the components of the bath
Process comprising a step for the preparation of the metallic substrate by degreasing, possibly followed by mechanical or chemical pickling, a step comprising the use by immersion or spraying...
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5169458 |
Method of improving the corrosion resistance of anodized aluminum at low temperatures
Corrosion resistance of anodized aluminum surfaces is improved by conditioning the surface with a low molecular weight (2-7 carbon atoms) alcohol, and sealing the surface with long chain (10-24...
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5141575 |
Surface treatment for zinciferous surfaces
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...
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5100486 |
Method of coating metal surfaces to form protective metal coating thereon
A process is disclosed for forming a protective metal coating on a metal surface using a flux consisting of an alkali metal fluoride, an alkaline earth metal fluoride, an alkali metal...
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5047094 |
Anti corrosion metal complex compositions
This invention relates to a process for coating a surface of a metal I, such as iron, steel, zinc, copper, tin or aluminum with a hydroxy oxime complex of metal II which may be lead of zinc. The...
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4880478 |
Protective coating for steel surfaces and method of application
A novel conversion coating composition and a method for treating corroded eel surfaces to convert them into a suitable substrate for accepting organic coatings are provided. Corroded steel surfaces...
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4830680 |
Corrosion inhibiting aqueous compositions comprising metal-chelating diphenolamine compounds
This invention relates to an aqueous composition useful to deposit a corrosion inhibiting and adhesion promoting coating on a corrodible metal substrate and a method for doing same. The composition...
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4812174 |
Method for protecting metallic surfaces from corrosion
Rust preventing resin composition comprising a condensate of tannic acid, a phenol and an aldehyde or a ketone formed in the presence of an acid catalyst. The composition may be used as...
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4747885 |
Solution and process for coating metals
A composition and process are useful for providing a corrosion resistant and lacquer receptive coating on the surface of drawn and ironed tin coated cans. The surface is contacted with an aqueous...
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4743466 |
Corrosion inhibition of iron and its alloys
For use in magnetic recording tapes and for other purposes, iron and iron alloy materials are passivated and protected against oxidative corrosion by treatment with a solution of a non-hygroscopic...
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4708744 |
Process for phosphating metal surfaces and especially iron surfaces
A phosphate conversion coating aqueous solution and method for its use, which solution contains zinc ions and phosphate ions, and an oxidation accelerator composition comprising (a) a bromate...
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4659629 |
Formation of a protective outer layer on magnesium alloys containing aluminum
A process is disclosed for the protection of magnesium based alloys containing aluminum by treatment with eutectic mixtures of fused salts to provide a corrosion resistant outer layer on the...
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4551301 |
Sintered compound material for electrical contacts and method for its production
AgCdO based contact elements are replaced in contactors and small circuit breakers with CdO-less type elements which exhibit little burn-off in the arc, a low welding force and minimal heating when...
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4540448 |
Microemulsion-based acid composition and its uses, particularly for cleaning operations
Composition comprising a hydrophobic liquid, an aqueous acid solution, a surfactant agent and a cosurfactant, a microemulsion being formed between the hydrophobic liquid and the aqueous solution;...
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4498935 |
Zinc phosphate conversion coating composition
An aqueous acidic zinc phosphate coating composition for treating a metal surface to provide a conversion coating thereon, the composition comprising chlorate anion and an aromatic nitro anion in a...
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4490185 |
Phosphating solutions and process
A process for phosphating metal surfaces, particularly iron, steel and zinc-plated steel, by treating them with aqueous, acidic zinc phosphate baths at only moderately elevated temperatures in the...
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4465523 |
Method of quenching metals
A method of quenching metals is described, comprising immersing said metals in a quenching oil composition comprising: (a) a base oil, and (b) a compound represented by the general formula (1) or...
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4381249 |
Rust removing and metal surface protecting composition
A rust removing and metal surface protecting composition, which comprises about 99.5% by weight of phosphoric acid at 85% concentration, from 0.11 to 0.14% by weight of 1,3-dibutyl thiourea, from...
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4353323 |
Apparatus for the treating of articles
An apparatus for treating articles with a solvent, a solvent-containing liquid such as a lacquer, or with solvent vapors, comprises an open treating vessel provided with a device for raising and...
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4263062 |
Rust-preventive compositions
A rust-preventive composition is provided which is useful for protecting metal surfaces. The composition contains as essential ingredients (1) an aryl phosphate ester (2) an oil-soluble calcium...
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4226646 |
Process of coating a ferrous metal substrate with an aqueous fluoropolymer coating
Prior to applying aqueous coatings to ferrous metal substrates, triethanolamine is applied. This permits subsequent coating without flash rusting.
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4147566 |
Cross blend or solvent type rust converting paint
The specification discloses a rust converting paint which may either be of an all solvent type, or a cross blend between a solvent based and a water based paint, in either case having an acid pH...
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4060433 |
Foam phosphatizing method and composition
The disclosed foamable phosphatizing compositions comprise a phosphatizing agent combined with a high-foaming surfactant. When mixed with a gas such as air, the composition provides a relatively...
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