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| Number | Title | Issue Date |
| 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 selected from cerium, praseodymium, terbium, or combinations thereof... | 09/09/2008 |
| 7338985 | Rustproofing composition A rustproofing composition has superior properties satisfying rustproofing quality requirements and workability requirements for car underbodies, parts around tires, parts with pockets, plate-bonded parts or the like of car bodies, and containing volatile organic so... | 03/04/2008 |
| 7332259 | Aluminum support for planographic printing plate, its manufacturing process, and planographic printing plate material Disclosed is a process for manufacturing an aluminum support for a light sensitive planographic printing plate material, the process comprising the steps of surface-roughening an aluminum plate, anodizing the surface-roughened aluminum plate, surface treating the an... | 02/19/2008 |
| 7332024 | Aluminizing composition and method for application within internal passages An aluminizing composition includes an aluminum-based powder, an inert organic pyrolysable thickener, and a binder selected from the group consisting of colloidal silica, at least one organic resin, and combinations thereof. A method for aluminizing an internal pass... | 02/19/2008 |
| 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, terbium, praseodymium, or a combination thereof, and at least one rare ... | 11/06/2007 |
| 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 contains a corrosion inhibitor, an inorganic acid, and an alcohol which is... | 06/19/2007 |
| 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 cyclic groups, and optionally but preferably a source of adhesion enhancin... | 03/06/2007 |
| 7137401 | Drag reduction using maleated fatty acids Non-polymeric drag reducing agents in the form of maleated fatty acids and the esters thereof and the organic, inorganic or amine salts thereof are described herein. These additives are useful to reduce drag in hydrocarbon fluids and multi-phase fluids of hydrocarbo... | 11/21/2006 |
| 7101469 | Metal pieces and articles having improved corrosion resistance A metal piece having an organic coating with improved corrosion resistance and adhesion is described which comprises a zinc or zinc alloy plated metal piece having on its surface, a chromate film deposited from an aqueous acidic chromium solution comprising trivalen... | 09/05/2006 |
| 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 |
| 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 a paint layer over the adhesion promoter coating. Sheet for automobil... | 06/14/2005 |
| 6902766 | Two-part aqueous metal protection treatment A two-part metal protection composition includes: an aqueous metal treatment conversion coating component that includes an admixture of an acid and a coating forming component; and an aqueous protective coating component that is applied over metal treated with the a... | 06/07/2005 |
| 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 |
| 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 inhibitor species, providing a second solution containing a cat... | 09/02/2003 |
| 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 one of the rolling element and the race element has a react... | 09/02/2003 |
| 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 |
| 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 an aqueous solution that includes water and a water-solub... | 04/01/2003 |
| 6524655 | Surface modification using hydridosilanes to prepare monolayers A method of modifying a surface is disclosed. The method includes contacting the surface with a hydridosilane under conditions and for a time sufficient to form a covalent bond between a silicon atom of the hydridosilane and the oxygen atom of a hydroxyl ... | 02/25/2003 |
| 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 recalcitrant oxide layer. The displacement reaction proceeds... | 01/07/2003 |
| 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 coating thickness to be formed thereon. Substantially unifo... | 09/03/2002 |
| 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 |
| 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 SiO2 and a water-soluble glycol, at a temperature that is effective to ... | 11/27/2001 |
| 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. The method is particularly useful in the manufacture of e... | 02/20/2001 |
| 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 compound. The thiazole compound and/or thiocarbamide compound... | 09/12/2000 |
| 6110262 | 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 coating thickness to be formed thereon. Substantially unifo... | 08/29/2000 |
| 6071435 | Composition and process for treating a zinciferous surface To inhibit the blackening of zinciferous metal-plated steel sheet while also generating a good corrosion resistance, fingerprint resistance, and chromium fixation ratio for the steel sheet, it is coated with an aqueous liquid composition that has a pH not... | 06/06/2000 |
| 5935307 | Compositions and methods for incorporating alloying compounds into metal substrates Compositions and methods for the introduction of alloying compounds into a metal substrate using a laser energy source is disclosed. The compositions comprise a viscous fluid mixture of a powdered silicate mineral composite, a powdered metallic or semi-me... | 08/10/1999 |
| 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 functional moiety selected from vinyl, mercapto, amino and glycidy... | 07/20/1999 |
| 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 azole treating agent where the aluminum surface is of a co... | 04/29/1997 |
| 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 surface to which an adhesive will be applied and thereaf... | 12/19/1995 |
| 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 dry-in-place aqueous acidic liquid comprising: (A) a componen... | 09/12/1995 |
| 5427632 | 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 dry-in-place aqueous acidic liquid comprising: (A) a componen... | 06/27/1995 |
| 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 and a fatty acid maleic anhydride adduct produced by a reac... | 01/31/1995 |
| 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 solvent, the boric acid being used in such an amount that the amount of boron ... | 09/06/1994 |
| 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 increased bond strength is obtained.... | 02/22/1994 |
| 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 potential test criteria set forth in ANSI/ASTM F 519-77. Th... | 01/04/1994 |
| 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 of a bath adapted to provide on the metallic substrate the contempla... | 11/09/1993 |
| 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 carbon atom) carboxylic acid at low temperatures below about ... | 12/08/1992 |
| 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 aqueous solution containing chromium in both +6 and +3 vale... | 08/25/1992 |
| 5104577 | Surface treatment chemicals and bath for aluminum or its alloy and surface treatment method A surface treatment chemical for aluminum or its alloy consisting essentially of 10-1000 parts by weight of one or more ions of metals selected from the group consisting of scandium, yttrium, lanthanum, praseodymium, neodymium, samarium, europium, gadolin... | 04/14/1992 |
