| Patents for C23C 22 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals (14,001) |
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| 04/23/1997 | CN1034681C Method for making manganese-contg. zinc phosphate layer on surface of zinc-plated steel |
| 04/17/1997 | WO1997013888A1 Non-chromate corrosion inhibitors for aluminum alloys |
| 04/17/1997 | WO1997013887A1 Composition and process for surface treatment of aluminum and its alloys |
| 04/17/1997 | WO1997013588A1 Chromium-free aluminum treatment |
| 04/17/1997 | CA2232998A1 Composition and process for surface treatment of aluminum and its alloys |
| 04/09/1997 | EP0757726A4 Method of pre-treating metal substrates prior to painting |
| 04/08/1997 | US5618456 Black copper oxide layer formed on surface of nozzle by chemical conversion treatment inhibits sticking of splatters |
| 04/02/1997 | EP0765952A1 Process for preparing the metallic surface of an object, especially a steel sheet, for a direct enamelling |
| 04/02/1997 | EP0765405A1 Process for forming a phosphate conversion coating |
| 03/29/1997 | CA2186327A1 Process for the metallic surface treatment of an article, particularly stainless steel sheet article, for direct mode enamelling |
| 03/26/1997 | EP0656957B1 Process for phosphatizing steel zinc-coated on one side only |
| 03/26/1997 | CN1146217A Metal pretreated with aqueous solution containing dissolved inorganic silicate or aluminate, organofunctional silane and non-functional silane for enhanced corrosion resistance |
| 03/25/1997 | US5614585 Hydrophilic surface-treating aqueous solution and hydrophilic surface-treating method |
| 03/25/1997 | US5614035 Nonabrasive, corrosion resistant, hydrophilic coatings for aluminum surfaces, methods of application, and articles coated therewith |
| 03/25/1997 | US5614028 Method of cleaning and passivating a metal surface with acidic system and ethoxylated tertiary dodecyl mercaptan |
| 03/25/1997 | CA2068289C Process for sealing chromate conversion coatings on electrodeposited zinc |
| 03/18/1997 | US5612421 Methods and compositions for pretreatment of metals |
| 03/13/1997 | WO1997009127A1 Precoat conditioning treatment for autodeposition |
| 03/13/1997 | DE19533416A1 Corrosion protecting coating, eg. for metal mouldings used in dewatering plants |
| 03/13/1997 | CA2230278A1 Precoat conditioning treatment for autodeposition |
| 03/12/1997 | EP0760871A1 Process for coating phosphatized metal substrates |
| 03/12/1997 | EP0760870A1 Iron phosphatisation using substituted monocarboxilic acids |
| 03/11/1997 | US5609968 Plated with zinc, thermosetting resin and dye |
| 03/05/1997 | EP0760401A1 Liquid rust proof film-forming composition and rust proof film-forming method |
| 03/05/1997 | CN1144278A Energy-saving low-temp. fast phosphorization liquid |
| 03/04/1997 | US5607521 Method for post-treatment of an article with a metallic surface as well as a treatment solution to be used in the method |
| 03/04/1997 | CA2075118C Chromium-free method and composition to protect aluminum |
| 03/04/1997 | CA1338967C Treatment and after-treatment of metal with carbohydrate-modified polyphenol compounds |
| 02/27/1997 | WO1997007261A1 Resin-chromate composition and surface-treated metal sheet |
| 02/26/1997 | EP0759097A1 Production of phosphate-containing activating agents for phosphatization with the aid of microwaves |
| 02/26/1997 | EP0759096A1 A method for pre-treating aluminum materials prior to painting |
| 02/26/1997 | EP0742849A4 Surface treatment agent for zinciferous-plated steel |
| 02/20/1997 | WO1997006313A1 Low lead release plumbing components made of copper based alloys containing lead, and a method for obtaining the same |
| 02/19/1997 | CN1143395A Anticorrosive treatment process for braided cables and drive system |
| 02/19/1997 | CN1034089C Forming method for hard alloy blade with surface solid lubricating layer |
| 02/18/1997 | US5604040 Coating a steel with an aqueous phosphate solution containing a transition-metal compound promoter, a polyelectrolyte and a source of iron ions; protective coatings; corrosion resistance |
| 02/18/1997 | US5603754 Aqueous liquid composition for protective coating containing dissolved titanium or zirconium compound, oxidizing agent, fluoride compound, phosphate compound |
| 02/12/1997 | EP0757726A1 Method of pre-treating metal substrates prior to painting |
| 02/12/1997 | EP0757725A1 Composition and process for treating the surface of aluminiferous metals |
| 02/11/1997 | US5601663 Cleaning surface; treating with a combination of distilled water, chlorides, sulfates and bicarbonates of sodium salts; catalyzed; heating; controlling ph |
| 02/11/1997 | US5601658 Using cupric acetate solution |
| 02/06/1997 | WO1997004145A1 Composition and process for treating the surface of aluminiferous metals |
| 02/06/1997 | WO1997004144A1 Composition and process for treating tinned surfaces |
| 02/06/1997 | CA2227509A1 Composition and process for treating the surface of aluminiferous metals |
| 02/05/1997 | CN1141964A Anti-rust agent for treatment of metal surface and using method of same |
| 02/05/1997 | CN1141963A Multi-function metal cleaning agent |
| 01/30/1997 | WO1997003227A1 Surface treatment of products made of aluminium and aluminium alloys |
| 01/30/1997 | WO1997003226A1 Metal surface treatments, method for treating metal surface, and surface-treated metallic material |
| 01/30/1997 | CA2226524A1 Metal surface treatment agent and method and metallic materials treated with the same |
| 01/29/1997 | EP0755462A1 Corrosion inhibition and improvement of adhesion characteristics of reinforcing metals |
| 01/29/1997 | EP0755419A1 Polymer composition and method for treating metal surfaces |
| 01/29/1997 | CN1141355A Aqueous chromate treatment composition and process for metal material |
| 01/29/1997 | CN1141354A Method for chemically treating low chromium surface film of steel sheet for tin-electroplating |
| 01/28/1997 | US5597465 Hydroxylamine phosphate and cationic surfactant; protective coatings; corrosion resistance |
| 01/28/1997 | US5597109 Welding method for forming chromium oxide passivated film at welded portion, welding apparatus, and process apparatus |
| 01/23/1997 | WO1997002370A1 Method of treating lead-containing surfaces to passivate the surface lead |
| 01/23/1997 | WO1997002369A1 Composition and process for treating the surface of aluminiferous metals |
| 01/23/1997 | DE19525965A1 Providing the contact surfaces of roller bearing ring races with adhesive coating |
| 01/23/1997 | CA2225757A1 Composition and process for treating the surface of aluminiferous metals |
| 01/22/1997 | EP0754778A1 Anticorrosive treatment process for braided cables and drive system |
| 01/22/1997 | EP0754251A1 Chrome-free process for the no-rinse treatment of aluminium and its alloys, plus solutions suitable for use in the process |
| 01/22/1997 | EP0754250A1 Composition and process for treating the surface of aluminiferous metals |
| 01/22/1997 | CN1141064A Anticorrosion treatment of metal coated steel having coatings of aluminium, Zinc or alloys thereof |
| 01/21/1997 | US5595611 Protective coatings on steels |
| 01/08/1997 | EP0752012A1 Process for producing magnetic steel sheets with a glass coating |
| 01/08/1997 | EP0724488A4 Process for treating zinciferous surfaces |
| 01/08/1997 | CN1139706A Nontoxic blackening liquid for iron and steel surface at normal temp. |
| 01/08/1997 | CN1139705A Blackening agent for iron and steel surface at normal temp. |
| 01/07/1997 | US5591275 Composition and process for surface treating metal prior to cold working |
| 01/03/1997 | WO1997000337A1 Surface-treated steel sheet having chemical conversion resin coating and process for producing the same |
| 01/02/1997 | EP0751239A1 Process for rejuvenating phosphating solutions |
| 12/31/1996 | US5589916 Hollow nonmagnetic cylinder |
| 12/31/1996 | US5589279 Weldable black steel sheet |
| 12/31/1996 | US5588989 Zinc phosphate coating compositions containing oxime accelerators |
| 12/31/1996 | CA2180169A1 Process of supplementing phosphatizing solutions |
| 12/27/1996 | EP0749501A1 An aqueous solution containing a dissolved inorganic silicate or aluminate, an organofunctional silane and a non-functional silane and a method of pretreating a metal with this solution |
| 12/25/1996 | CN1033655C Passivating agent for removing oxidation scale on the surface of stainless steel |
| 12/24/1996 | US5587025 Providing free edta solution, heating, spiking hydrogen peroxide concentration, exposing to passivation solution for at least two hours |
| 12/18/1996 | CN1033594C Metallic surface treatment agent |
| 12/17/1996 | US5584946 Contacting surfaces with acidic aqueous solutions containing complex fluorides of boron, silicon, titanium, zirconium and/or hafnium, machining, forming or joining surfaces, subjecting to permanent corrosion preventing treatment |
| 12/17/1996 | US5584944 Aqueous lubricant and surface conditioner for formed metal surfaces |
| 12/17/1996 | US5584943 Reducing friction; low temperature drying |
| 12/11/1996 | EP0746637A1 Composition and process for treating metal |
| 12/11/1996 | EP0746584A1 Hydrophilicizing sealer treatment for metal objects |
| 12/10/1996 | US5582024 Copper article with protective coating |
| 12/04/1996 | CN1137297A Phosphate conversion coating and compositions and concentrates therefor with stable internal accelerator |
| 11/27/1996 | EP0744475A1 Process for improving the formability and weldability properties of zinc coated sheet steel |
| 11/26/1996 | CA2054878C Method for producing organic composite-plated steel sheet |
| 11/21/1996 | WO1996036748A1 Metallic sheets treated with resin-chromate and reduced in leaching of chromium |
| 11/21/1996 | WO1996036747A1 Composition and process for treating the surface of copper-containing metals |
| 11/20/1996 | EP0742849A1 Surface treatment agent for zinciferous-plated steel |
| 11/19/1996 | US5576066 Method of improving the wear and corrosion resistance of ferrous metal parts |
| 11/19/1996 | US5575865 Process for coating a workpiece of steel with an anti-corrosive agent |
| 11/19/1996 | CA2149721A1 Process of producing phosphate coatings on metals |
| 11/14/1996 | WO1996035745A1 Composition and process for treating metal |
| 11/14/1996 | CA2220419A1 Composition and process for treating metal |
| 11/13/1996 | EP0742291A1 Method for surface treatment of a metallic material |
| 11/07/1996 | WO1996034995A1 Chromium- and fluoride-free treatment of metallic surfaces |
| 11/07/1996 | DE19616502A1 Improved surface treatment in motor car mfg. for body part treatment |
| 11/07/1996 | DE19516765A1 Chrom- und fluoridfreie Behandlung von Metalloberflächen Chromium and fluoride-free treatment of metal surfaces |