| 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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| 08/25/1994 | DE4403876A1 Passivation layer containing polysiloxane for metallic surfaces and process for its production |
| 08/24/1994 | CN1025750C Water-base priming coating liquor for zinc-plated iron and its technology of production |
| 08/23/1994 | CA1331576C Surface treated steel material particularly electroplated steel sheet |
| 08/17/1994 | EP0610315A1 Treatment for the formation of a corrosion resistant film on metal surfaces |
| 08/17/1994 | EP0553271B1 Preatment for zinc and zinc alloys prior to chromating |
| 08/17/1994 | CN1090890A Anti corrosion treatment of aluminium or aluminium alloy surfaces |
| 08/17/1994 | CN1025684C Surface treating liquid for steels with rust |
| 08/16/1994 | US5337939 Method for soldering a ceramic body of an electrical component into a metal housing |
| 08/11/1994 | DE4303339A1 A process for the pretreatment of aluminium castings |
| 08/10/1994 | CN1090606A Substantially nickel-free phosphate conversion coating composition and process |
| 08/09/1994 | US5336567 Nickel alloy electroplated cold-rolled steel sheet excellent in press-formability and phosphating-treatability |
| 08/09/1994 | US5336336 Process for chemical treatment with phosphate |
| 08/03/1994 | EP0608874A1 Method for dissolving sludge and recovering constituents therefrom |
| 08/03/1994 | EP0608513A1 Surface-treated metal sheet which excels in workability, electrical conduktivity and corrosion resistance, and method of producing the same |
| 08/03/1994 | EP0559830B1 Composition and process for chromating metal surfaces |
| 08/03/1994 | EP0555383B1 Improved chromium-free composition and process for corrosion resisting treatments for aluminum surfaces |
| 08/03/1994 | EP0469034B1 A method and composition for coating aluminum |
| 08/03/1994 | CN1090338A Non-chromated oxide coating for aluminum substrates |
| 07/30/1994 | CA2114297A1 Method for dissolving sludge and recovering constituents therefrom |
| 07/27/1994 | EP0545993B1 Composition and method for chromating treatment of metal |
| 07/27/1994 | EP0516700B1 Conversion treatment method and composition for aluminum and aluminum alloys |
| 07/27/1994 | CN1089904A Production technology for zinc alloy ancient copper imitation handicraft article |
| 07/26/1994 | US5332596 Soldering |
| 07/26/1994 | US5332452 Surface treatment of aluminum (alloy) surfaces |
| 07/21/1994 | WO1994016120A2 Phosphating compositions and processes, particularly for use in fabrication of printed circuits utilizing organic resists |
| 07/21/1994 | WO1994016119A1 Composition and process for treating metal |
| 07/21/1994 | CA2153331A1 Composition and process for surface treating metal prior to cold working |
| 07/21/1994 | CA2152948A1 Phosphating compositions and processes, particularly for use in fabrication of printed circuits utilizing organic resists |
| 07/20/1994 | EP0584226A4 Polymer laminated drag cast can stock and method |
| 07/19/1994 | US5330588 Organic-aqueous composition and process for forming corrosion-resistant coatings on metal surfaces |
| 07/13/1994 | EP0606174A1 Solid with hydrophobic and oleophobic coating and process for applying such coating |
| 07/13/1994 | EP0605555A1 Coating composition and process |
| 07/12/1994 | US5328526 Method for zinc-phosphating metal surface |
| 07/12/1994 | US5328525 Nonchromate coatings on aluminum or aluminum alloys with polyacrylic acid polymers, adding molybdate and hexafluoro metal acids |
| 07/07/1994 | WO1994014999A1 Substantially nickel-free phosphate conversion coating composition and process |
| 07/07/1994 | CA2150545A1 Substantially nickel-free phosphate conversion coating composition and process |
| 07/06/1994 | CN1088969A Improved surface conditioner for formed metal surfaces |
| 07/06/1994 | CN1088968A Improved surface conditioner for formed metal surfaces |
| 07/06/1994 | CN1088967A Improved surface conditioner for formed metal surfaces |
| 07/06/1994 | CN1088966A Improved surface conditioner for formed metal surfaces |
| 07/05/1994 | US5326594 Metal pretreated with an inorganic/organic composite coating with enhanced paint adhesion |
| 07/05/1994 | US5326408 Rapidly dissolving and storage stable titanium phosphate containing activating composition |
| 07/05/1994 | CA1330515C Process of forming phosphate coatings on metals |
| 06/29/1994 | EP0603921A1 Process for forming phosphate coatings |
| 06/29/1994 | EP0596099A4 Multiplex aluminide-silicide coating |
| 06/28/1994 | US5324545 Dipping into binder solution of organic titanium or zirconium compound, organofunctional polysiloxane in organic solvent system, drying |
| 06/28/1994 | US5324399 Method and system for monitoring quality of phosphate coating |
| 06/28/1994 | CA1330465C Porous coatings, products and method of manufacture |
| 06/23/1994 | WO1994013856A1 Method of phosphating metal surfaces |
| 06/23/1994 | WO1994013855A1 Composition and process for treating tinplate |
| 06/21/1994 | US5322713 For good paint adherence, chip resistance on automobiles |
| 06/20/1994 | CA2111165A1 Process of producing phosphate coatings |
| 06/15/1994 | EP0600982A1 Process for treating metal with aqueous acidic composition that is substantially free from chromium (vi) |
| 06/14/1994 | US5321061 Universally paintable passivated galvanized steel |
| 06/14/1994 | US5320737 Treatment to reduce solder plating whisker formation |
| 06/09/1994 | WO1994012687A1 Anti corrosion treatment of aluminium or aluminium alloy surfaces |
| 06/09/1994 | WO1994012570A1 A method and composition for treating metal surfaces |
| 06/09/1994 | WO1994012289A1 Process for protecting a surface using silicate compounds |
| 06/09/1994 | CA2149919A1 Process for protecting a surface using silicate compounds |
| 06/08/1994 | CN1024981C Adhesion method of copper to resin |
| 06/07/1994 | US5318640 Surface treatment method and composition for zinc coated steel sheet |
| 06/01/1994 | DE4239671A1 Chrome-plating soln for aluminium@, zinc@ and their alloys - contains chromium (VI), a fluoride complex and a mineral acid and can be prepd as a liq concentrate for dilution with water |
| 06/01/1994 | CN1024817C Ultrasonic integrated treatment method for metal surface and its equipment |
| 06/01/1994 | CN1024816C Pre-treatment agent for metal material surface |
| 06/01/1994 | CN1024815C Metal surface treating liquid |
| 05/17/1994 | US5312652 Process for forming a copolymer-based anticorrosion coating on a metal surface and the products thus obtained |
| 05/17/1994 | US5312492 Process not using chlorate or nitrite for the production of nickel and manganese containing zinc phosphate films |
| 05/11/1994 | EP0596121A1 Process for forming passive film on stainless steel, and stainless steel and gas- and liquid-contacting part |
| 05/11/1994 | EP0596099A1 Multiplex aluminide-silicide coating |
| 05/04/1994 | CN1086269A Treatment for the formation of a corrosion resistant film on metal surfaces |
| 05/03/1994 | US5308413 Dipping metal surface into a first zinc phosphating solution containing a fluoride complex and a simple fluoride and then spraying a second zinc phosphating solution containing a higher concentration of simple fluoride onto surface |
| 04/28/1994 | WO1994008729A1 Reducing or avoiding pinhole formation in autodeposition on zinciferous surfaces |
| 04/28/1994 | CA2143668A1 Reducing or avoiding pinhole formation in autodeposition on zinciferous surfaces |
| 04/27/1994 | CN1085961A Comprehensive treating agent for metal surface |
| 04/27/1994 | CN1085960A Passivating agent for removing oxidation scale on the surface of stainless steel |
| 04/26/1994 | US5306526 Provides improved adhesion and flexibility as well as resistance to humidity, salt spray corrosion and detergents |
| 04/21/1994 | DE4234301A1 Strip phosphating plant for horizontal running strip - with side mounted strip guides and phosphating acid supplied from above strip surface and recirculated by pump |
| 04/20/1994 | EP0592892A1 Process for continuous titanium sheet pickling and passivation without using nitric acid |
| 04/20/1994 | CN1085606A Rapid ordinary-temp blacking agent for steel & iron |
| 04/19/1994 | US5304401 Method of producing organic composite-plated steel sheet |
| 04/19/1994 | US5304257 Trivalent chromium conversion coatings for aluminum |
| 04/14/1994 | WO1994007630A1 Wheel speed measuring gear and method of manufacturing the same |
| 04/14/1994 | DE4234044A1 Phosphating bath for coating ferrous substrates - contains oxalic acid to improve phosphate crystalline structure |
| 04/13/1994 | EP0493507B1 Composition and process for chromating galvanized steel and like materials |
| 04/13/1994 | CN1085244A Aqueous lubrication and surface conditioning for formed metal surfaces |
| 04/06/1994 | EP0590875A1 Metal hydrides |
| 04/06/1994 | EP0590594A1 Treatment of metallic surfaces to improve their adhesive force and their corrosion properties |
| 04/06/1994 | CN1084906A Corrosion-proof coating for surface with moisture and stain |
| 04/06/1994 | CN1084905A Process for treating steel to minimize filiform corrosion |
| 04/06/1994 | CN1024147C Rust-poof solution for iron and steel material |
| 04/05/1994 | US5300323 Aqueous solution of hydrofluoric acid |
| 04/05/1994 | US5300158 Protective coating having adhesion improving characteristics |
| 03/31/1994 | WO1994007131A1 Monitoring copper-containing metal treatment baths |
| 03/31/1994 | CA2103778A1 Metal hydrides |
| 03/29/1994 | US5298289 Polyphenol compounds and treatment and after-treatment of metal, plastic and painted surfaces therewith |
| 03/29/1994 | US5298092 Forming cobalt oxide film by oxidizing cobalt-111 hexammine complex |
| 03/29/1994 | US5298037 Hydriding; batteries |
| 03/24/1994 | DE4231273A1 Badkontrolle Kupfer-haltiger Metallbehandlungsbäder Bath control copper-containing metal treatment baths |
| 03/24/1994 | DE4231052A1 Bath for pretreating light metals which are susceptible to oxide formation prior to electroless coating - made up of aqueous phosphoric acid |
| 03/22/1994 | US5296052 Surface treatment chemicals and bath for aluminum or its alloy and surface treatment method |