| Patents for C25D 11 - Electrolytic coating by surface reaction, i.e. forming conversion layers (8,800) |
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| 05/23/1989 | US4832800 Process for preparing surface-treated steel strips adapted for electric resistance welding |
| 05/17/1989 | EP0316240A1 Bilayered anodized aluminium support, method for the preparation thereof and lithographic printing plate containing same |
| 05/17/1989 | EP0315789A2 Corrosion resistant aluminium alloy and product made therefrom with uniformly grey, lightfast surface and process for its manufacture |
| 05/10/1989 | EP0314757A1 A process for the production of hard surface control members for faucets |
| 05/09/1989 | US4828655 Electrolysis, cast iron anode coated with molybdenum |
| 05/02/1989 | CA1253451A1 Process for preparing surface-treated steel strips adapted for electric resistance welding |
| 04/19/1989 | EP0312176A1 Process for applying conversion coatings |
| 04/18/1989 | US4822458 Anodic coating with enhanced thermal conductivity |
| 04/04/1989 | US4818572 Process for production of calcium phosphate compound-coated composite material |
| 04/04/1989 | CA1252062A1 Anodization of aluminum electrolytic capacitor foil |
| 04/04/1989 | CA1252061A1 Production of aluminum foil capacitor electrodes |
| 04/04/1989 | CA1251984A1 Anodized electrostatic imaging surface |
| 03/28/1989 | US4816348 Multilayer chromium and chromium oxide coatings |
| 03/28/1989 | CA1251760A1 Selective coating for aluminum solar panels |
| 03/21/1989 | CA1251416A1 Processes for sealing anodised aluminium |
| 03/07/1989 | US4810584 Lithium tantalum oxide coated tantalum articles with improved wear resistance and process for providing the same |
| 02/28/1989 | US4808281 Hydrogen-rich moisture-controlled ion exchange resin particles enhance electroconductivity of solution |
| 02/28/1989 | US4808280 Asymmetric wave aclternating current having larger negative voltage; bronze color |
| 02/21/1989 | US4806226 Process for electrolytically coloring aluminum material |
| 02/21/1989 | US4806211 Aluminum alloy product with uniformly grey, light-fast surface and process for its manufacture |
| 02/21/1989 | CA1250198A1 Ferrous substrate with rubber adherent metal coating and method of making the same |
| 02/14/1989 | US4804587 Chromate-treated zinc-plated steel strip and method for making |
| 02/08/1989 | EP0302465A2 Method for ceramic coating on metals |
| 01/31/1989 | US4801380 Method of producing a silicon film with micropores |
| 01/31/1989 | US4801360 Anodizing to provide a wear resistant oxide film |
| 01/26/1989 | DE3723582A1 Method and appliance for non-electrolytic bonding of roughened anode foils made of aluminium and provided with a layer of boiled-oxide |
| 01/25/1989 | CN1030621A Anticorrosive treatment of stainless steel surface |
| 01/24/1989 | US4799419 Wear resistant and friction resistant blocks |
| 01/19/1989 | DE3722718A1 Method for manufacturing anode foils for low-voltage aluminium electrolytic capacitors |
| 01/17/1989 | US4798656 Process for electrolytically dyeing an anodic oxide layer on aluminum or aluminum alloys |
| 01/11/1989 | EP0298409A1 Organic composite-plated steel sheet |
| 01/04/1989 | EP0298007A1 Multistage anodising process of aluminium |
| 12/29/1988 | WO1988010328A1 Process for passivating anodization of copper in a molten fluoride medium, and application to the protection of copper parts of fluorine electrolyzers |
| 12/27/1988 | US4793903 Anodizing in aqueous phosphoric acid solution; controlled residual oxide thickness |
| 12/14/1988 | EP0294611A1 Process for the selective additive correction of defects in copying layers |
| 12/14/1988 | EP0294610A1 Single-stage electrochemical process for the production of images for reproduction layers |
| 12/13/1988 | US4790913 Method for producing an Sn-based multilayer coated steel strip having improved corrosion resistance, weldability and lacquerability |
| 12/13/1988 | CA1246487A1 Method for electrolytically treating a steel strip with alkali metal and/or ammonium phosphate |
| 12/07/1988 | EP0293867A2 Surface treatment process for carbon fibers |
| 12/07/1988 | EP0293774A2 Process for electrolytic coloring of anodised aluminium |
| 12/01/1988 | WO1988009400A1 Controlling processes for the electrolytic recovery of metals |
| 11/23/1988 | EP0291983A2 Thinly tin coated steel sheets having excellent rust resistance and weldability |
| 11/23/1988 | EP0291927A1 Multiple coated composite steel strip |
| 11/22/1988 | US4786381 Anodizing |
| 11/22/1988 | US4786336 Aqueous acidic sealing solution containing dissolved zirconium and-or titanium and dissolved fluoride |
| 11/17/1988 | WO1988008762A1 A process for the production of hard surface control members for faucets |
| 11/17/1988 | EP0290841A1 Process for the surface improvement of aluminium objects by anodisation |
| 11/17/1988 | EP0290793A2 Process for the pretreatment of zinc-coated steel sheets |
| 11/16/1988 | CN88103137A Cloisonne' on aluminium base |
| 11/15/1988 | US4784732 Oxidation of aluminum substrates |
| 11/15/1988 | US4784731 Chromate treatment of a metal coated steel sheet |
| 11/15/1988 | US4784730 Hydrogen evolution, polymer, metal coatings |
| 11/15/1988 | CA1244793A1 Anodizing aluminum strip in bath between electrodes |
| 11/09/1988 | EP0289844A2 Support material and process for its manufacture |
| 11/09/1988 | CN87103694A Method of coating articles of aluminum and electrolytic bath therefor |
| 11/08/1988 | CA1244577A1 Protective coating composition and process for aluminum and aluminum alloys |
| 11/02/1988 | EP0289459A1 Process for the electrolytic grey coloring of anodic oxide layers on aluminium or aluminium alloys |
| 11/02/1988 | EP0288853A1 Process for the preparation of work pieces from titanium or titanium alloys |
| 11/01/1988 | CA1244104A1 Preparation of capacitor electrodes |
| 11/01/1988 | CA1243981A1 Process for producing aluminum support for lithographic printing plate |
| 11/01/1988 | CA1243861A1 Aluminum alloy electrochemically treated products |
| 10/20/1988 | WO1988008046A1 Method of coating articles of aluminum and an electrolytic bath therefor |
| 10/19/1988 | EP0178297B1 Method and plants for the continuous unilateral anodic oxidation of aluminium bands and utilization thereof to make offset printing plates |
| 10/18/1988 | CA1243268A1 Process for producing cold rolled steel strip highly susceptible to conversion treatment |
| 10/12/1988 | CN87102467A Method of pore sealing of anodic oxidation membrane on the aluminum and aluminum alloy anode |
| 10/04/1988 | US4775600 Highly corrosion-resistant surface-treated steel plate |
| 09/27/1988 | CA1242407A1 Method of producing full colour images on aluminum |
| 09/07/1988 | EP0281364A2 Catalyst including anodized aluminum substrate and method of manufacture |
| 09/07/1988 | EP0280886A1 Process for the production of decorative coatings on metals |
| 09/07/1988 | EP0138885B1 Anodized electrostatic imaging surface |
| 08/24/1988 | EP0279146A1 Process for electrolytically colouring an anodic oxide layer on aluminium or aluminium alloys |
| 08/23/1988 | CA1240951A1 Printing plates made of mechanically and electrochemically roughened aluminum |
| 08/23/1988 | CA1240949A1 Surface treated steel strip with coatings of iron-nickel alloy, tin and chromate |
| 08/16/1988 | US4764259 Method for producing a magnetic recording medium |
| 08/02/1988 | US4761330 Magnetic material packed in porous anode oxidized aluminum coat |
| 08/02/1988 | CA1239898A1 Galvanized steel sheet with layer particulate chromium and hydrated chromium oxide |
| 07/26/1988 | CA1239612A1 Anodic oxidation and silicate treatments of roughened aluminium |
| 07/14/1988 | WO1988004336A3 Electrochemical treatment of carbone fibers |
| 07/12/1988 | US4756805 Subjecting surface to cathodic electrolysis at controlled cathodic current density in aqueous treatment liquor containing chromium, silicon, nitrate ions |
| 07/12/1988 | US4756772 Dipping article in aqueous solution of phosphomolybdic acid or a silicomolybdic acid to effect absorption by the anodic oxide film, dripping into reducing agent, sealing |
| 07/12/1988 | US4756771 Colorless sealing layers for anodized aluminum surfaces |
| 07/06/1988 | EP0273806A1 Electrochemical process for the treatment of carbon fibres, and fibres treated by this process |
| 06/28/1988 | CA1238602A1 Passivation of zinc on steel with chromic anhydride prior to chrome plating |
| 06/21/1988 | CA1238293A1 Method for producing tin-free steel strips having improved lacquer adhesion |
| 06/16/1988 | WO1988004336A2 Electrochemical treatment of carbone fibers |
| 06/09/1988 | DE3641766A1 Method of producing light-fast and weather-resistant anodised and coloured layers on aluminium and aluminium alloys |
| 06/08/1988 | EP0270301A2 Slide parts |
| 06/08/1988 | EP0269851A2 Aluminium or aluminium alloy based carrier materials for offset printing plates, and process for manufacturing them |
| 06/08/1988 | CN86108153A Treatment process of aluminium and aluminium alloy before electriplating |
| 06/07/1988 | CA1237694A1 Process of producing aluminum substrate for magnetic recording media |
| 06/07/1988 | CA1237693A1 Process for the one-stage anodic oxidation of aluminum bases for offset printing plates |
| 06/01/1988 | EP0268971A2 Electrical interconnect support system with low dielectric constant |
| 06/01/1988 | EP0268790A2 Process for electrochemically modifying support materials of aluminum or aluminum alloys, which have been grained in a multi-stage process and use of these materials in the manufacture of offset-printing plates |
| 05/31/1988 | US4747923 Device for performing continuous electrolytic treatment on a metal web |
| 05/31/1988 | CA1237346A1 Method of preparing composite aluminum material |
| 05/25/1988 | EP0267995A1 Process for surface treatment of carbon fibers |
| 05/24/1988 | US4746591 Electrochemically graining with hydrochloric acid, nitric acid |
| 05/18/1988 | EP0267739A1 Shaping anodic aluminium oxide sheet |
| 05/18/1988 | CN87101497A Shaping anodic aluminium oxide sheet |
| 05/18/1988 | CN86108405A Method of coating articles of magnesium and electrolytic bath therefor |