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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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7256259 |
The present invention is a method for a covalent ligation of one or more molecules to one or more surfaces, that is site-specific and both rapid and high yielding. The covalent ligation to the surface is based on the reaction of an azide...
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6740173 |
The invention concerns a method for protecting metal products against corrosion, characterised in that it consists in applying directly on the metal products, that is without prior treatment, a composition consisting at least of a film-f...
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6612746 |
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 one of the rolling element and the race e...
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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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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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6488990 |
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 solution B, or vice versa, wherein solution...
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6478885 |
When a phosphate ester or a dispersed wax is added to a conventional liquid phosphate conversion coating composition, the resulting phosphate coating formed on a metal substrate has a lower coefficient of friction after being oiled than ...
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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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6299983 |
This invention provides for metal surfaces which when derivatized with α-ω bis-functionalized substantially linear aliphatic, including fluoroaliphatic acids and metal salts thereof exhibit changes in surface properties. In particular,...
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6176945 |
Disclosed herein is a method of coating a substrate with a zinc dialkyldithiophosphate (ZDDP) material, comprising the steps of selecting a substrate which is reactive with said ZDDP material; providing an atmosphere containing said ZDDP...
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6120618 |
A method of controlling bulk absorption of atomic hydrogen and facilitating degassing of hydrogen from aluminum alloy workpieces during heat treatments in furnaces with ambient and/or moisture-laden atmospheres by exposing the surface of...
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5981069 |
Copper powder has a coating made of copper phosphate at the outer surface thereof. The coating is formed by chemically reacting the outer surface of the copper powder and covers the entire surface of the copper powder uniformly, thereby ...
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5972433 |
Methods for treating metal substrates are disclosed. These methods, which comprise contacting the surface to be treated with a composition comprising a Mannich-derivatized polyether, improve the corrosion resistance and/or adhesion prope...
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5942052 |
A surface treatment aqueous solution is provided which is superior in corrosion resistance and coating adhesiveness as well as in ability of inhibiting the production of precipitate. A tinned DI can, which has been degreased, is conversi...
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5935656 |
A process for sealing anodized metal surfaces is characterized by bringing the anodized metal into contact with an aqueous solution at a temperature from 75° C. to the boiling point of the solution for a time equal to from 0.5 to 2 minu...
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5776867 |
A composition for lubricating a metal workpiece prior to cold forming consists essentially of: an aqueous alkaline stearate compound present in an amount sufficient to impart metal lubrication between about 180° F. and about 320° F.; a...
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5628838 |
Concentrate for activating and refining bath employed in processes of zinc phosphatization, characterized by the fact that it is based on an aqueous dispersion containing from 2 to 20% by weight of Jernstedt salts, the concentration of t...
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5624888 |
A composition for lubricating a metal workpiece prior to cold forming consists essentially of: an aqueous alkaline stearate compound present in an amount sufficient to impart metal lubrication between about 180° F. and about 320° F.; a...
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5614035 |
A nonabrasive, corrosion-resistant, hydrophilic coating on aluminum sheet such as fin stock, produced by applying to the sheet surface a coating material containing, in an aqueous vehicle, effective amounts of nitrilotrismethylenetriphos...
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5476552 |
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 surface to which an adhesive will be ap...
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5456767 |
A method for inhibiting corrosion of a metal surface in a liquid medium is described. The method comprises incorporating into the medium a corrosion inhibiting amount of a combination of a surfactant that forms a bilayer on the metal sur...
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5368655 |
There is described a process for chromating an article formed of a metal selected from the group consisting of zinc, cadmium and alloys thereof, which includes immersing the article in a water solution of a soluble chromic oxalate comple...
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5288341 |
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 increased bond strength is obtained.
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5246507 |
A metal article is improved on its surface for the purpose of plating thereon by treatment with an additive of an anionic, cationic or amphoteric and water-soluble or water-self-dispersible organic polymer J, K or L. J is a polymer havin...
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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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5221370 |
A zinc phosphate film on a metal surface is used as a surface-protecting film and an under coating film for coating and so on. The zinc phosphate film is formed by treating a metal surface with an aqueous zinc phosphate solution. The aqu...
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5102697 |
A structural component of titanium or titanium alloy is provided with a protective coating made substantially of an oxidation resistant and diffusion inhibiting base layer (2), an intermediate layer (3) forming a titanium fire inhibiting...
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5059258 |
Disclosed is a method of producing a functionalized layer and an aluminum hydroxide layer on an aluminum substrate, the aluminum hydroxide layer located between the substrate and the functionalized layer. The method comprises the steps o...
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4978399 |
A metal article is improved on its surface for the purpose of plating thereon by treatment with an additive of an anionic, cationic or amphoteric and water-soluble or water-self-dispersible organic polymer J, K or L. J is a polymer havin...
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4917737 |
Method and composition for sealing of a phosphate conversion coating is disclosed. The method includes contacting a phosphate conversion coating with an acidic aqueous solution of substituted iminodimethylene diphosphonic acids represent...
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4743466 |
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 salt of bis(triphenylphosphoranylidene) ...
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4655958 |
Liquid-water displacement compositions containing a normally liquid chlorofluorocarbon compound with a surfactant comprising a tetraalkyl ammonium compound derived from an aryl acid phosphate are described. They are useful in aiding in t...
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4582543 |
Water-based metal-containing organic phosphate compositions which are useful as corrosion-inhibiting coating compositions, metal working lubricants and drilling fluids for well-drilling operations are disclosed. These compositions compri...
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4572743 |
A method for removing rust and/or scale from a metal surface, comprising contacting said metal surface with a homogeneous pickling solution comprising a major amount of a halogenated hydrocarbon solvent, an effective solubilizing amount ...
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4559088 |
An aqueous rust preventative composition for application to iron-containing alloys which contains a mono-alkali or monoalkanolamine salt of a phosphoric acid ester of an unsaturated hydroxy fatty acid containing from 14 to 20 carbon atoms.
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4536225 |
A method of inhibiting corrosion of a metal surface comprises applying to the metal surface an organic solvent in which is dissolved a phosphate monoester of a hydroxyalkyl acrylate or a hydroxyalkyl alkylacrylate which phosphate monoest...
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4505748 |
An anti-corrosive coating composition includes an anti-corrosive pigment component comprising (a) a salt comprising a polyvalent metal cation and an organic polyphosphonic acid containing at least 2 phosphonic acid groups and (b) a corro...
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4465516 |
Asymmetrical phosphate esters of formula I ##STR1## in which R is C 1 -20 alkyl, R 1 is C 1 -20 alkyl, R 2 is hydrogen or methyl x is 1-15 and M is hydrogen, an alkali metal ion or an equivalent of an alkali earth metal or ...
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4457790 |
A treatment solution for contacting a metal surface comprises: from about 0.001% to about 1.0% of a metal ion selected from the group consisting of titanium, zirconium and hafnium and mixtures thereof; and an effective amount of a ...
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4445983 |
A process for sealing anodically produced oxide layers on aluminum and aluminum alloys by treating them with an aqueous solution at a temperature between about 90° C. and its boiling point, wherein the aqueous solution has a pH of from ...
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4437898 |
The metal surfaces are treated with 0.5 to 5 wt. % aqueous solutions (pH value 7.5 to 10.5), in which is contained a synergistic combination--giving a clear solution in water--of corrosion-inhibiting substances. The combination consists ...
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4427765 |
The plate-, foil- or strip-shape support materials for offset printing plates are based on chemically, mechanically and/or electromechanically roughened aluminum, or on one of its alloys. Optionally, the aluminum may also have an aluminu...
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4427459 |
A method and material for forming phosphate conversion coatings on ferrous metals such as iron and steel or non-ferrous metals such as zinc and aluminum employes aqueous acidic solutions containing a metal phosphate such as zinc phosphat...
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4394284 |
A nitroalkane-free inhibitor system for methylchloroform has been formulated which contains dioxane, an alkylene oxide, and 3-butyn-1-ol. The stabilizer amounts to about 4 to 6% by volume of the stabilized methylchloroform composition. T...
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4394184 |
The amount of organic, phosphorous containing grain refiners in phosphate conversion coating baths is determined by precipitating the grain refiners and determining the difference in the chemical oxygen demand of the bath before and afte...
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4389259 |
Asymmetrical phosphate esters of formula I ##STR1## in which R is C 1 -20 alkyl, R 1 is C 1 -20 alkyl, R 2 is hydrogen or methyl x is 1-15 and M is hydrogen, an alkali metal ion or an equivalent of an alkali earth metal or ...
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4359348 |
An aqueous acidic solution and process for treating metal surfaces, particularly zinc and zinc alloy surfaces, for depositing a passivate film to impart improved corrosion resistance thereto. The solution contains effective amounts of ch...
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4351675 |
An aqueous acidic coating solution for treating zinc, zinc alloy or cadmium surface comprising (A) an oxidizing agent selected from the group consisting of hydrogen peroxide, nitrate ion, nitrite ion, halate ion or mixtures thereof, and ...
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4349391 |
This invention relates to an improved process for preserving a planographic printing form which is ready for printing. In the process, the planographic printing form is treated with an aqueous solution of a water-soluble, film-forming hi...
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