| 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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| 03/17/1994 | WO1994005826A1 Process for phosphatizing steel zinc-coated on one side only |
| 03/16/1994 | EP0587543A2 Process for improving the corrosion resistance of copper and copper alloy radiators, and the radiators thereby obtainable |
| 03/16/1994 | CN1083746A Continuous surface treating method and apparatus with inline centrifugal separator |
| 03/15/1994 | US5294485 Organic composite coated steel strip having improved corrosion resistance and weldability |
| 03/15/1994 | US5294266 Process for a passivating postrinsing of conversion layers |
| 03/15/1994 | US5294265 Non-chrome passivation for metal substrates |
| 03/09/1994 | EP0585365A1 Process for protecting metallic surfaces using silicate compounds |
| 03/08/1994 | US5292549 Metallic coated steel having a siloxane film providing temporary corrosion protection and method therefor |
| 03/08/1994 | US5292379 Method and composition for treatment of aluminum |
| 03/08/1994 | US5292378 Visible dried-in-place non-chrome treatment for aluminum |
| 03/03/1994 | WO1994004717A1 Method and apparatus for modifying surface material |
| 03/03/1994 | DE4229163A1 Soldering ceramic body into electrical component - includes using intermediate tin coating and lead-tin coating not applied electrolytically |
| 03/03/1994 | DE4229061A1 Values and water recovery from aq. process liq. - by membrane distillation giving recyclable concentrate and distillate usuable instead of deionised water |
| 03/03/1994 | DE4228470A1 Verfahren zur Phospatierung von einseitig verzinktem Stahlband Method for phosphating of one-sided galvanized steel strip |
| 03/02/1994 | EP0584226A1 Polymer laminated drag cast can stock and method |
| 03/01/1994 | US5290424 Method of making a shaped reflective aluminum strip, doubly-protected with oxide and fluoropolymer coatings |
| 02/23/1994 | EP0583769A1 Organic composite coated steel plates having improved corrosion resistance |
| 02/23/1994 | CN1082628A Method for dyeing copper surface by organic dyestuff |
| 02/23/1994 | CN1082627A Multifunctional low-temperature metal phosphorizing liquid |
| 02/23/1994 | CN1082626A Phosphate-gallate series rust-removing and anti-rust agent |
| 02/17/1994 | WO1994003398A1 Treatment of aqueous flushing solutions from zinc phosphatization processes |
| 02/17/1994 | CA2141841A1 Treatment of aqueous rinsing solutions from zinc phosphating processes |
| 02/15/1994 | CA1326989C Corrosion resistant aluminum coating composition |
| 02/10/1994 | DE4226080A1 Aufbereitung wäßriger Spüllösungen aus Zinkphosphatierungsprozessen Preparation of aqueous rinse solutions from Zinkphosphatierungsprozessen |
| 02/09/1994 | EP0582121A1 Process for stainless steel pickling and passivation without using nitric acid |
| 02/03/1994 | WO1994002661A1 Process for treating steel to minimize filiform corrosion |
| 02/03/1994 | DE4303841C1 Drum for washing or chrome treatment of components - uses low-power pump and incorporates sprung flaps facilitating fast controlled release of fluid |
| 02/02/1994 | EP0580765A1 Metal treatment |
| 02/01/1994 | US5282905 Surface treatment with water soluble or water dispersible polymer comprising polyacrylic acid and copolymer of acrylic acid and allyl ether or polyether allyl copolymer |
| 02/01/1994 | US5282890 Process for producing brown covering layers on copper |
| 02/01/1994 | CA2022492C Burnishing method and composition |
| 01/26/1994 | EP0461133B1 Process for producing zinc/barium phosphate coatings on metal surfaces |
| 01/25/1994 | US5281282 Composition and process for treating metal |
| 01/20/1994 | WO1994001593A2 Hydrophilicizing treatment for metal objects |
| 01/20/1994 | WO1994001517A1 Aqueous lubrication and surface conditioning for formed metal surfaces |
| 01/20/1994 | CA2135920A1 Aqueous lubrication and surface conditioning for formed metal surfaces |
| 01/19/1994 | CN1080964A Method for passivation of tool for metallic hot-working |
| 01/19/1994 | CN1080963A Non-chromated oxide coating for aluminum substrates |
| 01/18/1994 | US5279677 Treating aluminum, or alloy thereof; containing a sulfosuccinate salt and surfactant |
| 01/18/1994 | US5279650 Corrosion resistant seal coat composition and method of forming |
| 01/18/1994 | US5279649 Coating composition and method of forming |
| 01/13/1994 | DE4222524A1 Regenerating used phosphate baths - by adding active carbon to remove organic decomposition products |
| 01/12/1994 | EP0578064A1 Continuous surface treating method and apparatus with inline centrifugal separator |
| 01/12/1994 | CN1080671A Two-step chemical/electrochemical magnesium coating process |
| 01/06/1994 | WO1994000619A1 Non-chromated oxide coating for aluminum substrates |
| 01/04/1994 | US5275891 R-TM-B permanent magnet member having improved corrosion resistance and method of producing same |
| 01/04/1994 | US5275696 Pretreatment for adhesive bonding |
| 01/02/1994 | CA2087352A1 Method and composition for treatment of galvanized steel |
| 12/29/1993 | CN1079998A Hydrophilic corrosion-resistant film former used on surface of aluminium heat exchanger and Al foil and film forming process |
| 12/27/1993 | CA2098873A1 Continuous surface treating method and apparatus with inline centrifugal separator |
| 12/23/1993 | DE4220401A1 Water circulation management for installations for workpiece etc. treatment in baths - including an evaporation unit for production of rinsing water |
| 12/21/1993 | CA2028688C Composition and method for producing chromate conversion coatings |
| 12/15/1993 | EP0573585A1 Two-step chemical/electrochemical process for coating magnesium. |
| 12/08/1993 | EP0573015A1 Composite organic-coated steel sheet |
| 12/07/1993 | US5268042 Composition and process for forming improved, non-cracking chromate conversion coatings |
| 12/07/1993 | US5268041 Process for phosphating metal surfaces |
| 11/30/1993 | US5266356 Method for increasing the corrosion resistance of aluminum and aluminum alloys |
| 11/30/1993 | US5266182 Zinc-nickel alloy plating on steels by dip coating a phosphate solutions |
| 11/25/1993 | WO1993023247A1 Multiplex aluminide-silicide coating |
| 11/18/1993 | EP0569826A1 Method and system for monitoring quality of phosphate coating |
| 11/16/1993 | US5261973 Acidic concentrates with hydroxylamine sulfate, manganese zinc oxide, nickel nitrate, hexafluorosilicic acid and hydrogen fluoride |
| 11/11/1993 | WO1993022474A1 Copper-containing, nickel-free phosphatizing process |
| 11/11/1993 | WO1993022320A1 Metal coatings |
| 11/11/1993 | WO1993021970A1 Method of reducing microorganism adhesion |
| 11/11/1993 | DE4214992A1 Kupfer enthaltendes, nickelfreies Phosphatierverfahren Containing copper, nickel-free phosphating |
| 11/10/1993 | CN1078271A Composition and process for treating metal |
| 11/09/1993 | US5260099 Coating with slurry of aluminum particles in liquid containing chromic and phosphoric acids, drying, curing, burnishing by glass bead blasting, forming porous skeletal ceramic cover, impregnating with chromium compound solution, drying, curing |
| 11/09/1993 | US5259884 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 |
| 11/03/1993 | EP0568084A2 Zinc-plated steel plate having resin coating film |
| 11/02/1993 | US5258079 Method and treating solution for phosphating metal surfaces |
| 11/02/1993 | US5258078 Immersion in phosphoric acid, soda ash, accelerators or gluconic acid |
| 11/02/1993 | CA1323827C Surface colouring process for zinc, zinc-coated or alloys of zinc |
| 10/28/1993 | DE4213657A1 Mfg. oxide surface on small components - using a rottable component container penetrate by liquid dipped into a chemical oxidation bath |
| 10/27/1993 | CN1077757A Black phosphatization liquor and preparing process thereof |
| 10/27/1993 | CN1077756A Acidic displacing solution for electroplating of zinc |
| 10/20/1993 | CN1022496C Room temp. phosphorized solution and preparing method |
| 10/19/1993 | US5254238 Surface treating solution and surface treating process for zinc-plated steel plates |
| 10/14/1993 | WO1993020260A1 Composition and process for treating metal |
| 10/14/1993 | WO1993020259A1 Nickel-free phosphatization process |
| 10/14/1993 | WO1993020258A1 Method of treating nonferrous metal surfaces by means of an acid activating agent and an organophosphate or organophosphonate and substrates treated by such method |
| 10/14/1993 | CA2133455A1 A nickel-free phosphating process |
| 10/13/1993 | EP0565346A1 Phosphating treatment for metal substrates |
| 10/13/1993 | EP0565029A1 Grain oriented silicon steel sheet having low core loss and method of manufacturing same |
| 10/12/1993 | US5252391 Surface treated sliding or rolling contact element and rolling bearing |
| 10/12/1993 | US5252363 Method to produce universally paintable passivated galvanized steel |
| 10/07/1993 | DE4210513A1 Nickel-freie Phosphatierverfahren Nickel-free phosphating |
| 10/06/1993 | EP0564301A1 Method for forming a chemical conversion film |
| 10/06/1993 | EP0564287A2 Method for zinc-phosphating metal surface to be treated by the cationic electrodeposition coating |
| 10/06/1993 | EP0564286A2 Method for zinc-phosphating metal surface |
| 10/06/1993 | CN1022333C Method and composition for refinement of metal |
| 09/30/1993 | WO1993019224A1 Making galvanized steel with excellent darkening resistance |
| 09/21/1993 | US5246786 Steel product with heat-resistant, corrosion-resistant plating layers |
| 09/21/1993 | US5246507 Metal surface treatment and aqueous solution therefor |
| 09/15/1993 | EP0560641A1 Phosphating method of steel pieces in order to improve their corrosion and wear resistance |
| 09/15/1993 | EP0559830A1 Composition and process for chromating metal surfaces. |
| 09/15/1993 | CN1076225A Black phosphorization liquid |
| 09/14/1993 | US5244512 Forming a coating film having superior adhesion and corrosion resistance |
| 09/14/1993 | CA1322147C Zinc-nickel phosphate conversion coating composition and process |
| 09/08/1993 | EP0559246A2 Coated porous metal panel |
| 09/08/1993 | EP0558837A1 Resin-coated steel sheet having good electrocoatability and weldability |