| Patents for C23C 28 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and (13,275) |
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| 02/03/1991 | CA2022065A1 High erosion/wear resistant multi-layered coating system |
| 01/30/1991 | CN1048895A Iron plating nitridation |
| 01/29/1991 | US4988415 Method of producing an anti-wear coating including a chromium layer on a surface of a structural part of titanium or titanium-based alloy |
| 01/23/1991 | EP0267225B1 Process for the production of a coated product, thin-walled coated cylinder obtained by using said process, and an ink transfer roller comprising such a cylinder |
| 01/22/1991 | WO1991001389A1 Steel substrate for reinforcement of elastomers |
| 01/16/1991 | EP0408535A1 Multi-oxide coated carbide body and method of producing the same |
| 01/16/1991 | EP0408205A1 Polyimide substrate having a textured surface metallizing such a substrate |
| 01/15/1991 | US4985313 Wire and cable |
| 01/11/1991 | CA2019155A1 Polyimide substrate having a textured surface and metallizing such a substrate |
| 01/10/1991 | DE3920138A1 Corrosion resistant cooling device esp. for excimer laser - comprises low melting metallic layer between corrosion resistant metallic layers |
| 01/09/1991 | EP0407349A2 Electrode for use in electrolytic processes and process for manufacturing it |
| 01/08/1991 | CA1278877C Resist inactivation method for manufacture of printed circuit boards |
| 01/08/1991 | CA1278772C Method for applying protective coatings |
| 01/08/1991 | CA1278771C Solar reflector with transparent base and transparent films of metal oxide or nitride and metal |
| 12/31/1990 | CA2018670A1 Metal substrate of improved surface morphology |
| 12/25/1990 | US4980203 Metal layer and metal oxide layer; corrosion resistance |
| 12/18/1990 | US4978587 Steel backing layer, copper-based alloy bearing layer, silver or alloy layer lead alloy layer; thickness, corrosion and wear resistance |
| 12/18/1990 | US4978586 Multiple coating layers having bonding layers in between; steel cord/fabric; tires, hoses, belts |
| 12/12/1990 | EP0401488A1 Process for producing high-hardened coatings on titanium materials and their alloys |
| 12/06/1990 | DE3917867A1 Electroless gold plating - of tungsten or molybdenum metallisations esp. on electronic ceramic components |
| 12/04/1990 | US4975327 Polyimide substrate having a textured surface and metallizing such a substrate |
| 11/27/1990 | US4973393 Forming aluminum film, heat treatment, hydrostatic pressure, corrosion resistance |
| 11/22/1990 | EP0397743A1 New composite material comprising a perowskite-type phase and a nitride phase, process for producing it and electrical assemblies containing it |
| 11/20/1990 | US4971948 Method of patterning superconductive oxide films by use of diffusion barrier |
| 11/13/1990 | US4970126 Highly corrosion-resistant, multi-layer coated steel sheets |
| 11/07/1990 | EP0396238A1 Method for treating aluminium surfaces |
| 10/30/1990 | US4967116 Spark plug having heat- and corrosion-resistant surface |
| 10/30/1990 | US4966820 Ceramics-coated heat resisting alloy member |
| 10/23/1990 | US4965088 Calcium phosphate-coated composite material and process for production thereof |
| 10/23/1990 | US4964963 Sputtering a highly reflective metallic film on an oxidized stainless steel which absorbs color |
| 10/23/1990 | US4964774 Wood construction; nail, staples; zinc chromate, polyurethane coatings |
| 10/17/1990 | CN1010034B Plated layer for imitation ancient bronze |
| 10/16/1990 | US4963404 Thin walled cylinder coated with mixture of ceramic and fluorocarbon polymer over metal adhesion layer |
| 10/10/1990 | EP0391708A2 Backside metallization scheme for semiconductor devices |
| 10/10/1990 | EP0391578A1 Two phase metal/oxide films |
| 10/10/1990 | EP0391294A1 Coating piston rods of hydraulic steel cylinders |
| 10/09/1990 | US4962005 Aluminization preceeded by a predeposition of palladium and at least one of nickel, cobalt and chromium as barrier metals |
| 10/09/1990 | CA1275028A1 Highly anticorrosive coated steel sheet for fuel vessel and process for production thereof |
| 10/08/1990 | WO1990012128A1 Highly corrosion-resistant, double-coated steel sheet excellent in coatability and prevented from blistering in elecrodeposition coating and process for producing the same |
| 10/08/1990 | CA2030812A1 High corrosion resistant multi-layer coated steel sheets having excellent paintability by enabling the prevention of occurrence of bubble-like ed paint defects, and producing method thereof |
| 10/03/1990 | EP0390122A1 Steel plate with organic coating having improved corrosion resistance in as-worked state |
| 10/03/1990 | CN1045817A Surface preparation for aluminium |
| 09/25/1990 | US4959273 Corrosion-resistant permanent magnet and method for preparing the same |
| 09/19/1990 | EP0388348A1 A method of producing selfsupporting aluminum titanate composites and products relating thereto |
| 09/19/1990 | CN1045425A Yttrium enriched aluminide coating for superalloys |
| 09/17/1990 | CA2012413A1 Surface preparation for aluminium |
| 09/12/1990 | EP0387113A1 Process for the deposition of a ceramic coating on a metal substrate, and article coated by this process |
| 09/12/1990 | EP0386658A2 Wear resistant coating for sharp-edged tools and the like |
| 09/12/1990 | EP0386486A1 Titanium alloy component with a protection layer |
| 09/12/1990 | EP0386386A1 Process for producing Yttrium enriched aluminide coated superalloys |
| 09/11/1990 | US4956196 Method for producing a corrosion-resistant coating on the surface of lacquered workpieces |
| 09/07/1990 | CA2011202A1 Wear resistant coating for sharp-edged tools and the like |
| 09/05/1990 | EP0385448A1 Method of coating metal assembly including aluminum member |
| 09/05/1990 | EP0385362A1 Steel plate with organic coating having improved corrosion resistance |
| 09/05/1990 | EP0385283A2 Process for coating hard metal substrates, and hard metal tool produced by the process |
| 08/28/1990 | CA1273198A1 Multilayered refractory structure, and wall fitted with a structure of the kind |
| 08/23/1990 | WO1990009464A1 Method and layered structure for adhering gold to a substrate |
| 08/21/1990 | US4950365 Corrosion free hard coated metal substrates |
| 08/16/1990 | EP0292777B1 Method for manufacture of a ceramic coated metallic component |
| 08/16/1990 | CA2010119A1 Deposition process of a coating of the ceramic type on a metallic substrate and element comprising a coating obtained by this procedure |
| 08/15/1990 | CN1044645A Method of producing self-supporting aluminum titanate composites and products relating thereto |
| 08/14/1990 | US4948677 High transmittance, low emissivity article and method of preparation |
| 08/14/1990 | US4948674 Method of applying a metal layer of large adhesive strength on enamels |
| 08/08/1990 | EP0381511A1 Colour change devices incorporating thin anodic films |
| 08/07/1990 | US4946748 Highly anticorrosive coated steel sheet for fuel vessel and process for production thereof |
| 08/07/1990 | US4946376 Deposition of silver, vanadium layers on silicon wafers |
| 08/07/1990 | US4945640 Multilayer; noble metal base, exterior overcoating of mixture of tunsten and tungsten carbide |
| 07/31/1990 | US4944985 Method for electroless plating of ultrafine or colloidal particles and products produced thereby |
| 07/30/1990 | CA2007604A1 A method of producing self-supporting aluminum titanate composites and products relating thereto |
| 07/25/1990 | CN1008900B Process and apparatus for production of clad sheets |
| 07/24/1990 | US4943492 Welding aluminium alloys |
| 07/24/1990 | US4943487 Corrosion resistant coating for oxide dispersion strengthened alloys |
| 07/24/1990 | US4943485 Process for applying hard coatings and the like to metals and resulting product |
| 07/24/1990 | US4942732 Refractory metal composite coated article |
| 07/17/1990 | US4942083 Abrasion resistant coatings |
| 07/04/1990 | EP0376061A2 High-temperature protected coating |
| 06/19/1990 | US4935073 Process for applying coatings of zirconium and/or titantuim and a less noble metal to metal substrates and for converting the zirconium and/or titanium to an oxide, nitride, carbide, boride or silicide |
| 06/15/1990 | CA2004804A1 Method of coating magnetizable substances |
| 06/13/1990 | CN1042953A Personal adornments |
| 06/12/1990 | US4933239 Aluminide coating for superalloys |
| 06/05/1990 | US4931152 Method for imparting erosion-resistance to metallic substrate |
| 06/05/1990 | US4931148 Method for manufacture of printed circuit boards |
| 06/05/1990 | CA1269898A1 Process for production of calcium phosphate compound- coated composite material |
| 05/30/1990 | EP0370838A1 Process for the surface protection of metallic articles against high-temperature corrosion, and article treated by this process |
| 05/29/1990 | US4929512 Improved adhesion |
| 05/22/1990 | US4927714 Refractory metal composite coated article |
| 05/22/1990 | US4927713 Tungsten and tungsten carbide |
| 05/08/1990 | US4923100 Process for producing clad sheets |
| 05/03/1990 | DE3934112A1 Steel products with heat and corrosion resistance - have 0.2-10 micron coating of nickel, zinc layer and chromate film |
| 05/03/1990 | DE3934111A1 Stahlerzeugnis mit waermebestaendigen, korrosionsbestaendigen ueberzugsschichten Steel product with waermebestaendigen, korrosionsbestaendigen coating layers |
| 05/02/1990 | EP0366289A1 Multi-layer wear resistant coatings |
| 05/02/1990 | EP0365687A1 Steel sheet having dense ceramic coating with excellent adhesion,smoothness and corrosion resistance and process for its production |
| 05/02/1990 | EP0365602A1 Thermal spraying of stainless steel. |
| 04/24/1990 | US4919773 Method for imparting erosion-resistance to metallic substrates |
| 04/18/1990 | EP0363887A2 Roll formed of carbon fiber composite material |
| 04/11/1990 | EP0362535A1 Aluminum plating substance for anodizing |
| 04/11/1990 | CN1041188A Article coated with ceramic film |
| 04/04/1990 | EP0361308A1 Corrosion-resistant permanent magnet and method for preparing the same |
| 04/04/1990 | EP0361206A1 An article coated with a ceramic film |
| 03/28/1990 | EP0198092B1 Surface-treated magnesium or its alloy, and process for the surface treatment |