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5545264 |
The invention relates to a method and apparatus for processing a metal material. In the present invention, a chlorine hydrocarbon solution, water and surfactant solution are mixed together. As an alternative to chlorine hydrocarbon solut...
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4931109 |
A method and an apparatus for depositing an inorganic phosphate coating on a metal substrate includes providing a first composition in a first bath having a high water and a high alcohol content and providing a second composition in a se...
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4678518 |
A non-aqueous chromating treatment solution comprising a chlorofluorocarbon solvent, chromic acid anhydride, an alcohol solubilizer, and an organic carboxylic acid reaction promotor gives a higher coating amount of chromate film and bett...
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4675054 |
In the process of chromate treatment, a metallic material which has been immersed in a chromate treatment solution is allowed to stand in an atmosphere substantially free from any ingredient of the chromate treatment solution for at leas...
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4540448 |
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; the surfactant comprises one or more surf...
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4508756 |
A method for inhibiting oxidation of copper electrodes of a ceramic capacitor, comprising the step of subjecting copper films formed by an electroless plating process or the like and serving as opposed electrodes of a ceramic capacitor t...
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4451301 |
Homogeneous phosphating solutions comprise low-boiling halogenated hydrocarbons, aqueous phosphoric acid, methanol or an alcohol mixture consisting predominantly of methanol, nitroaromatics, ureas, optional conventional stabilizers, inhi...
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4447273 |
A process for phosphating metallic surfaces in nonaqueous phosphating baths comprising low-boiling halogenated hydrocarbons, aqueous phosphoric acid as the phosphating agent, alcohols as the solubilizer, and, optionally, further known co...
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4334936 |
A liquid composition for phosphating metal surfaces is disclosed which composition contains a major amount of methylene chloride, a phosphating proportion of phosphoric acid, water in an amount exceeding the proportion of phosph...
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4257828 |
A non-aqueous composition for chemical treatment of the surface of a metallic substrate which comprises a chlorinated hydrocarbon solvent, chromic anhydride, phosphoric acid, a solubilizer and a stabilizer. By the use of such non-aqueous...
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4186035 |
A chromium-containing treating composition, which is especially useful for rinsing phosphatized metal surfaces, contains hexavalent chromium-containing compound, methylene chloride and a substance that can be acetamide, N,N-dimethylforma...
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4143205 |
Metal substrates, and particularly ferrous metal substrates, are now protected by having on their surface composite coatings wherein the base coating comprises a water-insoluble phosphatized coating from an organic phosphatizing composit...
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4118253 |
A liquid phosphatizing composition, containing organic solvent such as 1,1,1-trichlorethane or trichlorofluoromethane, can provide phosphate coatings on metal articles. In addition to the organic solvent, the composition contains a phosp...
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4102710 |
Topcoat adhesion is now increased for coatings applied over a solvent phosphatized metallic surface. The phosphatized surface is obtained from a composition that can contain methylene chloride, as well as water in minor amount, and yet m...
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4056409 |
Topcoat adhesion is now increased for coatings applied over a solvent phosphatized metallic surface. The phosphatized surface is obtained from a composition that can contain methylene chloride, as well as water in minor amount, and yet m...
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4029523 |
A liquid phosphatizing composition, containing organic solvent such as 1,1,1-trichlorethane or trichlorofluoromethane, can provide phosphate coatings on metal articles. In addition to the organic solvent, the composition contains a phosp...
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4023986 |
Efficiency of chemical surface finishing baths for metal articles, particularly electrolytic baths for anodizing metals such as aluminum, magnesium or titanium is improved by incorporating into the bath an effective amount, typically fro...
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4008101 |
A liquid composition, containing methylene chloride, can provide phosphate coatings on metal articles. In addition to the methylene chloride, the composition contains a phosphatizing proportion of phosphoric acid and a solubilizing solve...
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3831066 |
Semiconductor devices hermetically sealed within metal cases formed, at least in part, of laminated or clad ferrous metal are subject to corrosion of the exposed portions of the ferrous metal. The invention inhibits the corrosion of the ...
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3475228 |
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3437531 |
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3361598 |
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3356540 |
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3338756 |
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3338754 |
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3317336 |
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3306785 |
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3297495 |
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3285788 |
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3281285 |
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3257326 |
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3249471 |
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3247027 |
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3232594 |
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3228806 |
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3220890 |
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3197345 |
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3100728 |
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3051595 |
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2992146 |
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2986482 |
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2964433 |
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2515934 |
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2043258 |
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