| 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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| 04/07/1992 | US5102697 Structural component made of a titanium alloy and covered by a protective coating and method for producing the coating |
| 04/02/1992 | WO1992005297A1 Corrosion resistant coated articles and process for making same |
| 04/02/1992 | WO1992004840A1 Ornament made of silicon |
| 04/01/1992 | EP0478028A2 Phosphating method |
| 04/01/1992 | EP0477204A1 Process for producing manganese-containing phosphate coatings on metal surfaces |
| 03/26/1992 | DE4131382A1 Surface treated aluminium@ alloy sheet for motor car construction - used in making decorative coloured items, zinc phosphate layer having fine grained structure of uniform thickness |
| 03/24/1992 | US5098797 Corrosion resistant blades of metals with ceramic overcoating |
| 03/18/1992 | EP0474920A1 Continuous method for preparing steel parts for resin coating |
| 03/18/1992 | EP0235297B1 Hot-dipped steel plate and process for its production |
| 03/18/1992 | CA2025557A1 Fluoropolymer-metal laminates |
| 03/17/1992 | US5096510 Thermal flattening semi-processed electrical steel |
| 03/17/1992 | CA1297613C Composition for forming hydrophilic film on aluminum |
| 03/12/1992 | DE4040316A1 Bacteria growth prevention on plastic surfaces e.g. pipe interiors - by contacting media contg. bacteria using fluorine in partic. for crosslinked polyethylene surfaces |
| 03/05/1992 | WO1992003594A1 Composition and method for chromating treatment of metal |
| 03/05/1992 | WO1992003593A1 Method for chromate treatment of galvanized sheet iron |
| 03/05/1992 | WO1992003592A1 Process and compositions for forming metal oxide layers |
| 03/04/1992 | CN1059171A Prodn. of protecting agent for chromium-plated piece |
| 03/04/1992 | CN1059158A Burnishing method and composition |
| 03/03/1992 | US5092924 Composition and process for coating metallic surfaces |
| 02/25/1992 | US5091223 Coating with a treatment solution containing complexing agents, metal 8 group salts and additives to form corrosion resistance film |
| 02/25/1992 | US5091023 Composition and process for chromating galvanized steel and like materials |
| 02/20/1992 | WO1992002377A1 Composition and process for promoting adhesion on metal surfaces |
| 02/18/1992 | US5089349 Compositions and method for applying coatings to metallic surfaces |
| 02/18/1992 | US5089064 Process for corrosion resisting treatments for aluminum surfaces |
| 02/11/1992 | US5087373 Process for removing titanium and zirconium from aqueous solutions |
| 02/06/1992 | DE4024085A1 Vehicle body cleaning for painting - uses fine mist water sprays to prevent the fluid droplets drifting into rinsing zone |
| 02/05/1992 | EP0469774A1 Method of manufacturing a wall ironed can |
| 02/05/1992 | EP0469456A1 Process for producing copper-clad laminate |
| 02/04/1992 | US5085411 Apparatus for processing grain-oriented electrical steel strip |
| 02/04/1992 | CA1295214C Treatment of chromate coating |
| 01/29/1992 | EP0468883A1 Anticorrosion coating composition |
| 01/23/1992 | WO1992001085A1 Composition and method for chromating treatment of metals |
| 01/22/1992 | CN1058050A Normal -temp energy-saving fast blackening agent for surface of iron or steel |
| 01/21/1992 | US5082748 Corrosion resistance, phosphate treatability |
| 01/21/1992 | US5082511 Protective coating processes for zinc coated steel |
| 01/16/1992 | DE4022186A1 Non aq. zinc contg. corrosion protecting medium - used for corrosion resistant coatings prepn. from compsn. of poly:silicic acid ester] dipped in organic poly:ol adhesive |
| 01/15/1992 | EP0465593A1 Process and composition for forming black oxide layers |
| 01/14/1992 | US5080733 Alkanesulfonic Acid |
| 01/08/1992 | CN1057681A Room-temperature phosphatizing liquor and its preparation process |
| 01/07/1992 | US5078845 Process for preparing an electrode foil for use in aluminum electrolytic capacitors |
| 01/06/1992 | CA2044503A1 Methods and compositions for coating non-ferrous metals |
| 12/31/1991 | US5076864 Oxidizing copper surface to darken, treating with acidic auueous solution of reducing agent |
| 12/27/1991 | CA2035639A1 Polymers and methods of use thereof as chromium-free post-conversion coating rinse solutions |
| 12/20/1991 | WO1991019828A1 Liquid composition and process for treating aluminium or tin cans to impart corrosion resistance and reduced friction coefficient |
| 12/18/1991 | EP0461686A1 Process for separating titanium und zirconium from aqueous solutions |
| 12/18/1991 | EP0461113A1 Tannin mannich adducts for improving corrosion resistance of metals |
| 12/18/1991 | CN1057021A Vibration grinding and colouring method for metallic golf club end |
| 12/17/1991 | US5073213 Process for applying a phosphate sliding layer to a bearing metal layer |
| 12/17/1991 | US5073196 Source of titanium ions and fluoride ions |
| 12/17/1991 | CA1293165C Method of forming phosphate coatings on zinc |
| 12/12/1991 | WO1991019018A1 Fluoride-free cleaning agents for aluminium surfaces |
| 12/12/1991 | WO1991018962A1 Method for lubrificating steel tubing prior to cold drawing |
| 12/10/1991 | US5070938 Having two layer protective coating; conversion film with a metal and antimicrobial film which bonds with it |
| 12/04/1991 | EP0459550A1 Process for rinsing conversion coatings |
| 12/04/1991 | EP0459549A1 Production of conversion coatings on zinc or zinc alloy surfaces |
| 12/04/1991 | EP0459541A1 Process for phosphating metal surfaces |
| 12/04/1991 | EP0459296A1 Surface treated Al or Al alloy material |
| 12/04/1991 | CN1056719A Black metal cold parkerizing agent |
| 12/03/1991 | CA1292648C Highly corrosion-resistant, multi-layer coated steel sheets |
| 12/03/1991 | CA1292629C Ferrophosphorus composition having improved conductivity and passivation resistance |
| 11/27/1991 | EP0458193A2 Weldable black steel sheet |
| 11/27/1991 | EP0458020A1 Non-chromated oxide coating for aluminum substrates |
| 11/27/1991 | EP0457854A1 Surface treatment for thin metal or semiconductor oxide coatings |
| 11/27/1991 | CN1056536A Process for preparing surface lubricating and anticorrosive agent for copper-aluminium sections |
| 11/27/1991 | CN1056520A Improved surface conditioner for formed metal surfaces |
| 11/26/1991 | US5068299 Carbodohydrate-modifed polyphenol compounds and compositions containing them |
| 11/26/1991 | US5068134 Coating metal with molten zinc or its alloys reacted with silica compound |
| 11/26/1991 | US5067990 Iron, rare earth element boride substrate with phosphate coatings |
| 11/21/1991 | EP0456834A1 Galvanized steel plate having excellent capability of press working, chemical conversion and the like, and production of said plate |
| 11/19/1991 | CA2042816A1 Weldable black steel sheet |
| 11/19/1991 | CA1292155C Method of forming a corrosion resistant coating |
| 11/17/1991 | CA2023203A1 Method of protecting an aluminum surface |
| 11/14/1991 | WO1991017217A1 Passivated aqueous metal pigment compositions and process for making same |
| 11/13/1991 | CN1056132A Steel articles having protective duplex coatings and method of production |
| 11/12/1991 | US5064723 Adhesion promoter, coating |
| 11/12/1991 | US5064500 Surface conditioner for formed metal surfaces |
| 11/06/1991 | EP0455419A1 Coating steel articles |
| 11/06/1991 | CN1055958A Energy-saving ordinary-temp fast bonderizing liquor |
| 10/31/1991 | WO1991014014A3 Process and composition for treating aluminium |
| 10/30/1991 | EP0454361A2 Process for phosphating metal surface to form a zinc phosphate coating |
| 10/30/1991 | EP0454212A1 Process for preparing activating agent for zinc phosphating and its use |
| 10/30/1991 | EP0454211A1 Process for applying phosphate coatings on metal surfaces |
| 10/30/1991 | CN1055775A Chromate composite used for passivation of zine plated layer on metal body and its application |
| 10/29/1991 | US5061550 Multilayer material having a resistance layer formed on an electrically conductive layer and a multilayer board for a printed circuit board which has a resistance layer |
| 10/29/1991 | US5061315 Applying Acidic trivalent metal compound containing fine silica dispersion as inorganic corrosion resistance, adhesion promoting coating |
| 10/29/1991 | US5061314 Products for treating surfaces |
| 10/29/1991 | US5060406 Steam iron having a hydrophilic acid resistant steam changer |
| 10/29/1991 | CA1291399C2 Thixotropic alumina coating compositions, parts and methods |
| 10/29/1991 | CA1291387C Dark surgical needle |
| 10/23/1991 | EP0452638A1 Method for phosphating metal surfaces |
| 10/22/1991 | US5059492 Highly corrosion-resistant, colored thin film-coated steel sheet having excellent press-processability and spot-weldability |
| 10/22/1991 | US5059258 Protective coatings |
| 10/22/1991 | CA2040872A1 Process of producing activating agents for use in zinc phosphating processes |
| 10/16/1991 | EP0451409A1 Composition and method for producing chromate conversion coatings |
| 10/15/1991 | US5056456 Automatically opened and closed barrel |
| 10/08/1991 | US5055356 Chelate compound |
| 10/02/1991 | EP0449646A2 Composition and method for surface refinement of titanium and nickel |
| 10/01/1991 | US5053081 Rinsing to enhance siccative adhesion coating; corrosion resistance; chromins free |
| 09/25/1991 | EP0448130A1 Liquid concentrate composition for preparing phosphating solutions containing manganese |
| 09/25/1991 | EP0448016A1 Process for optimizing corrosion protection of coated substrates |