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| Number | Title | Issue Date |
| 7905964 | Method for the passivation of metal surfaces with compositions comprising polymers with acid groups and waxes Process for the passivation of metallic surfaces, in particular of strip metals, by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and at least one wax. ... | 03/15/2011 |
| 7641744 | Superfinishing of high density carbides A method for superfinishing a high density carbide steel component using chemically accelerated finishing is provided. The high density carbide steel component is vibrated in a vessel containing a plurality of media, with active chemistry being added to the vessel a... | 01/05/2010 |
| 7452428 | Method for coating metal substrates with a radically polymerizable coating agent and coated substrates The invention relates to a method and coating agents used in the method which provide good adherence to and good corrosion protection of metal substrates; the coating coating agents are cross-linkable via radical polymerization. Adhesion promoting compounds are pres... | 11/18/2008 |
| 7371272 | Modifier for hydrophilicity, hydrophilic modification method and aluminum material or aluminum alloy material modified hydrophilic thereby A modifier for hydrophilicity and a hydrophilic modification method capable of suppressing not only the odor of the resulting hydrophilic coat itself, but also the unpleasant odor emanation after exposure to odorants and retaining the hydrophilicity even during a lo... | 05/13/2008 |
| 7344607 | Non-chromate conversion coating treatment for metals Chromate-free treatments and compositions, for applying a conversion or passivation coating to zinc coated metal surfaces. The compositions comprise a polyamidoamine/epihalohydrin polymer or cationic polyamine/epihalohydrin polymer component, fluoacid, H3... | 03/18/2008 |
| 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 the ferrous metal with an aqueous solution of the composition at elevat... | 05/02/2006 |
| 7005056 | Method for inhibiting corrosion of alloys employing electrochemistry A method for inhibiting corrosion, e.g., pitting corrosion, of alloys is provided. Particularly, the method comprises contacting at least a portion of a surface of the alloy with an aqueous solution comprising a salt of one or more rare earth elements selected from ... | 02/28/2006 |
| 6946201 | Chromium (VI)-free conversion layer and method for producing it 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 of approx. 100 to 1000 h in t... | 09/20/2005 |
| 6858097 | Brightening/passivating metal surfaces without hazard from emissions of oxides of nitrogen A chromium- and nitrogen-free brightening and passivating treatment for metal surfaces, particularly iron and steel, comprises: at least one acid; at least one substance containing a peroxy moiety; and at least one organic substance selected from the group consistin... | 02/22/2005 |
| 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 having a pH of about 2.0 to 5.0; and coating cleaned tin surfaced article... | 12/14/2004 |
| 6821633 | Non-chromate conversion coating compositions, process for conversion coating metals, and articles so coated In at least one aspect, the invention relates to an entirely or substantially chromium-free conversion coating composition and process for conversion coating metal surfaces that provides corrosion resistance. In at least another aspect, the present invention relates... | 11/23/2004 |
| 6752878 | Process for treating adhesion promoted metal surfaces A method for treating a micro-roughened metal surface to improve bonding between the metal surface and a polymer material. The method involves post-treating the micro-roughened conversion coated metal surface with an aqueous wetting agent composition after having fo... | 06/22/2004 |
| 6746546 | Low temperature nitriding salt and method of use A composition for nitrocarburizing stainless steel parts and a method for producing a nitride or hard case on such parts using the composition, are provided. The composition includes alkali metal cyanate and alkali metal carbonate, wherein the cyanate ion is present... | 06/08/2004 |
| 6679951 | Metal anneal with oxidation prevention The invention relates generally to the prevention of copper oxidation during copper anneal processes. In one aspect of the invention, copper oxidation is prevented by carrying out the anneal in the presence of one or more organic reducing agents.... | 01/20/2004 |
| 6677053 | Surface-treated steel sheet and production method therefor 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 on the alloy plating... | 01/13/2004 |
| 6673164 | Method of minimizing environmental effect in aluminides A method of cold fabricating an intermetallic alloy composition, comprising steps of coating an article of an intermetallic alloy composition with a viscous medium which provides a moisture resistant barrier on the surface of the article, fabricating the ... | 01/06/2004 |
| 6635123 | Copper preservative treatment A method of pretreating a copper surface for protecting the surface from oxidation, by immersing the surface in a solution containing organic solderabilty preservatives, such as BenzoTriAzole, with the addition of a zinc salt. The method is particularly u... | 10/21/2003 |
| 6569264 | Surface-treating agent for magnesium-based part and method of surface treatment The present invention provides a corrosion inhibitor composition for magnesium or magnesium alloys which contains as an effective component, at least one compound selected from among aromatic carboxylic acids and salts thereof as an effective component. F... | 05/27/2003 |
| 6562149 | Solution and process to pretreat copper surfaces The invention concerns processes and solutions for the preliminary treatment of copper surfaces which are subsequently to be firmly bonded to organic substrates. The solution is used, in particular, for firmly bonding laminated multilayered printed circui... | 05/13/2003 |
| 6558480 | Process and composition for conversion coating with improved heat stability A conversion coating that does not substantially diminish the luster of a metal surface on which it is coated nor impair adhesion to the surface of lacquers and printing inks commonly used on beverage containers may be provided by contacting the metal sur... | 05/06/2003 |
| 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 surface of liquid gallium or gallium alloy with an aqueous ... | 04/08/2003 |
| 6540844 | Mercaptofunctional silanes to deposit sol-gel coatings on metals A method for forming a sol-gel on a metal surface to provide an interface for promoting adhesion between the metal surface and an organic resin involves application of at least one metal alkoxide compound having at least one labile sulfur atom, and at lea... | 04/01/2003 |
| 6524644 | Process for selective deposition of OSP coating on copper, excluding deposition on gold A method is provided for the selective deposition of an organic solderability preservative (OSP) coating on copper surfaces of articles such as electronic components, e.g., printed wiring boards, to serve as a protective coating and preserve the solderabi... | 02/25/2003 |
| 6508890 | Method of enhancing the conductivity of a conductive surface The present invention is drawn to a method of lowering the net resistivity of an interconnect by depositing a monomer layer upon an aluminum bonding pad, the treatment thereof to cross link the monomer to form an electrically conductive polymer, and simul... | 01/21/2003 |
| 6506263 | Sealant composition An aqueous composition for sealing anodically oxidized aluminum surfaces is described. The composition contains at least one surfactant, a magnesium salt, and a cobalt(II) salt. This composition demonstrates enhanced sealant properties. A method for seali... | 01/14/2003 |
| 6491766 | Activated nickel screens and foils A coating composition and process have been developed to provide an activated coating on nickel screen for use as cathodes in electrolytic cells for the generation of hydrogen and oxygen. Compared to the earlier Classical Pack Cementation process, the dis... | 12/10/2002 |
| 6478885 | Phosphating processes and products therefrom with improved mechanical formability 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 it would have had ... | 11/12/2002 |
| 6464800 | Visible chromium- and phosphorus-free conversion coating for aluminum and its alloys A visible colored chromium- and phosphorus-free conversion coating can be formed on a metal surface by contacting it with an aqueous liquid composition that comprises an alizarine dye and a product of chemical interaction between a first initial reagent c... | 10/15/2002 |
| 6432225 | Non-chromated oxide coating for aluminum substrates An improved process that is commercially practical for forming an oxide film cobalt conversion coating exhibiting corrosion resistance and paint adhesion properties on a substrate, where the substrate is aluminum or aluminum alloy, the process including t... | 08/13/2002 |
| 6372027 | Process for promoting adhesion between an inorganic substrate and an organic polymer The invention relates to a process, and compositions for its implementation, to promote adhesion between an inorganic substrate and an organic polymer, especially between the copper surfaces of printed circuits for electronic use and a polymer resin, in w... | 04/16/2002 |
| 6346295 | Alkaline strip passivation Process for the alkaline passivation of galvanized and alloy-galvanized steel surfaces and of aluminum in strip lines, wherein the metal surfaces are brought into contact with an alkaline aqueous solution that contains complexing agents and iron, which ha... | 02/12/2002 |
| 6342554 | Surface treatment agent for steel material Disclosed herein is a surface treatment agent for steel, characterized in that, said agent contains 0.1-15% by mass of chromium sulfate and 10-40% by mass of a binder resin containing butyral resin or a mixture of butyral resin with another resin which is... | 01/29/2002 |
| 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 specific ratio. Such a synergistic effect occurs when the amine:... | 01/22/2002 |
| 6303079 | Corrosion inhibitor compositions The present invention relates to a process for making and a method for using a corrosion inhibitor composition to reduce the corrosion rate of a metal by a fluid containing a corrosion agent. The corrosion inhibitor composition comprises at least a quater... | 10/16/2001 |
| 6287704 | Chromate-free conversion layer and process for producing the same 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 of approx. 100 to ... | 09/11/2001 |
| 6206981 | Process for enhancing the adhesion of organic coatings to metal surfaces A process is described for increasing the adhesion of organic coatings to metal surfaces, particularly aluminum and aluminum alloys. The process involves the utilization of an adhesion promoting composition in conjunction with a chromating composition in ... | 03/27/2001 |
| 6200672 | Surface-treated metal plate and metal surface treating fluid 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 from among --O--, .db... | 03/13/2001 |
| 6171521 | Zwitterionic water-soluble substituted imine corrosion inhibitors This invention is directed to a zwitterionic water-soluble imine of formula: ##STR1## wherein R1 is heterocyclyl, heteroaryl, aryl, arylalkyl, cycloalkyl or lower alkyl; R2 is alkyl, alkenyl, aminoalkyl, diaminoalkyl, hydroxyalk... | 01/09/2001 |
| 6113709 | Method of preparing a conductive bonding pad The present invention is drawn to a method of lowering the net resistivity of an interconnect by depositing a monomer layer upon an aluminum bonding pad, the treatment thereof to cross link the monomer to form an electrically conductive polymer, and simul... | 09/05/2000 |
| 6059897 | Short-term heat-sealing of anodized metal surfaces with surfactant-containing solutions Process for post-sealing anodized metal surfaces, characterized in that the anodized metal is contacted with an aqueous solution for a period of between 0.5 and 2 minutes per micrometer of anodized coating thickness, which solution is at a temperature of ... | 05/09/2000 |
