| 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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| 06/20/1989 | US4840667 Metal-chelating diphenolamine oligomers for corrosion inhibition of metal substrates |
| 06/20/1989 | CA1256054A1 Process for preparation of highly anticorrosive surface-treated steel plate |
| 06/20/1989 | CA1256003A1 Metal base coating composition comprising chromium, silica and phosphate and process for coating metal therewith |
| 06/13/1989 | US4838957 Phosphate coatings for metal surfaces |
| 06/08/1989 | DE3739940A1 Surface-hardened crankshafts for high-performance engines |
| 06/07/1989 | EP0319017A2 Treatment and after-treatment of metal with carbohydrate-modified polyphenol compounds |
| 06/07/1989 | CN1004429B High efficient rust-removing passivator |
| 06/06/1989 | US4837046 Spraying aqueous oxidizing agent solution on substrate in deoxidized atmosphere, simultaneously supplying aqueous deoxidized solution containing ferrous ions |
| 06/06/1989 | US4836695 Steel backing, aluminum alloy and zinc phosphate |
| 06/06/1989 | US4836350 Disc-shaped body for use in clutch plates |
| 06/06/1989 | CA1255246A1 Corrosion resistant surface-treated steel strip and process for making |
| 05/23/1989 | EP0245305A4 Copper oxide treatment in printed circuit board. |
| 05/17/1989 | CN1032963A Phosphate solution used for phosphorization by dipping |
| 05/16/1989 | US4830931 Diffusion aluminizing and pack therefor |
| 05/16/1989 | US4830829 Sulfiding |
| 05/16/1989 | CA1254084A1 Hot dip coated steel sheet and process for producing the same |
| 05/16/1989 | CA1254083A1 Surface treatment method for improving corrosion resistance of a ferrous sintered part |
| 05/10/1989 | EP0315059A1 Process and composition for zinc phosphate coating |
| 05/10/1989 | EP0314876A1 Apparatus for applying anti-sticking agent on annealed oriented electrical sheet steel in coil |
| 05/10/1989 | EP0207999B1 Coated steel plate for highly corrosion-resistant fuel container and process for its production |
| 05/10/1989 | CN1032821A Insulation-coating formation for tapes of soft magnetic alloy |
| 05/10/1989 | CN1032820A Melanin rust-preventer for metalworks and utilization |
| 05/09/1989 | US4828616 Alkali silicate, aminoalcohol, water-soluble resin, anchoring agent |
| 05/09/1989 | US4828615 Rinsing, metals, concentrates, alkalis, acids |
| 05/09/1989 | US4828614 Surface deposited ions of chromium and zinc, strontium, calcium, barium, lead or copper |
| 05/02/1989 | US4825807 Apparatus for applying anti-sticking agent on annealed oriented electrical sheet steel in coil |
| 04/26/1989 | EP0313114A1 Process for obtaining phosphate coatings |
| 04/26/1989 | EP0312599A1 Highly corrosion-resistant, surface-treated steel sheet |
| 04/25/1989 | US4824490 Process of producing phosphate coatings on metals |
| 04/25/1989 | US4824482 Pyrophoric iron product and process of making |
| 04/25/1989 | CA1253113A1 Applying hexavalent-chromium composition including particulate metal on metal coating substrate |
| 04/19/1989 | EP0312176A1 Process for applying conversion coatings |
| 04/11/1989 | US4820362 Metal diffusion and composition |
| 04/11/1989 | US4820344 Solution of corrosion and metal inhibitors, aliphatic carboxylic acids, polyglycerols, alcohols, surfactant for smoothening car bodies |
| 04/05/1989 | EP0310587A1 Compositions and process for metal treatment |
| 04/05/1989 | EP0310103A1 Pretreatment process for aluminium |
| 04/04/1989 | US4818568 Forming an oxide film by spraying a salt of cobalt or iron on hot coating |
| 04/04/1989 | US4818333 One step, nonabrasive, burnishing |
| 03/30/1989 | DE3731089A1 Composition and process for activating metal surfaces prior to zinc phosphating |
| 03/29/1989 | EP0308563A1 Process for providing a precoated steel sheet having improved corrosion resistance and formability |
| 03/28/1989 | US4816086 Compositions useful in copper oxidation, and a method to prepare copper oxidation solutions |
| 03/23/1989 | WO1989002485A1 Method and apparatus for depositing an inorganic phosphate coating |
| 03/22/1989 | EP0307839A1 Process for the production of activating titanium phosphates for zinc phosphatizing |
| 03/15/1989 | CN1031723A Corrosion-resistant technology for the outer and inner walls of steel pipe bundle |
| 03/14/1989 | US4812175 Passivation process and copmposition for zinc-aluminum alloys |
| 03/09/1989 | WO1989001990A1 Process for fabricating multilayer circuit boards |
| 03/08/1989 | EP0305560A1 Metal particle |
| 02/28/1989 | US4808245 Colloidal titanium compound and alkaline phosphate surface conditioner; metal soap lubricant |
| 02/28/1989 | US4808244 Compositions for protecting steel surfaces against atmospheric oxidation |
| 02/28/1989 | CA1250498A1 Process for conditioning metal surfaces |
| 02/28/1989 | CA1250406A1 Stabilisation |
| 02/22/1989 | EP0304109A2 Composite plane bearing |
| 02/22/1989 | EP0304108A1 Metal-phosphating process |
| 02/08/1989 | EP0302465A2 Method for ceramic coating on metals |
| 02/08/1989 | CN1030947A Unoiling, rust-cleaning and parkerizing liquid |
| 02/01/1989 | CN1030797A Multifunctional rust-removing and preventing agent |
| 01/31/1989 | US4801337 Corrosion resistance, complex chromium oxide, zinc (alloy) surface |
| 01/31/1989 | CA1249500A1 Liquid composition for treating metal surface |
| 01/31/1989 | CA1249494A1 Surface preparation for aluminum parts |
| 01/26/1989 | DE3823716A1 Processes and compositions for treating metals |
| 01/24/1989 | US4799979 Heat generation |
| 01/24/1989 | US4799970 Surface treatment method for improving corrosion resistance of ferrous sintered parts |
| 01/24/1989 | US4799959 Hexavalent chromium compound, lubricant, metal flake or powder |
| 01/24/1989 | CA1249266A1 Organic compounds |
| 01/11/1989 | EP0298827A1 Mixed phosphatation solution and process |
| 01/11/1989 | EP0298150A2 Compositions for protecting steel surfaces against atmospheric oxidation |
| 01/10/1989 | US4797156 Metal treated by a solution containing ferric ferrous salt |
| 01/10/1989 | CA1248419A1 Hydrophilic surface-treating process for an aluminum article |
| 01/03/1989 | US4795506 Corrosion resistance; paint adhesion |
| 12/28/1988 | EP0112826B1 Alkaline resistant phosphate conversion coatings and method of making |
| 12/27/1988 | US4794023 Process for producing a calcium phosphate compound coated composite material |
| 12/27/1988 | US4793873 Coating with magnesium oxide, high temperature annealing, removal of boron using group six compounds |
| 12/27/1988 | US4793867 Using solution containing sodium, potassium, or ammonium phosphate |
| 12/21/1988 | EP0295980A1 Process for colouring metal surfaces of zinc or zinc alloys or of zinc plated surfaces |
| 12/21/1988 | CN87101353A Iron and steel surface painting preprocessing liquor-one step phosphorus liquor |
| 12/20/1988 | US4792358 Inorganic coating compositions |
| 12/20/1988 | CA1322305B Structures fabricated from aluminium components and processes involved in making these structures |
| 12/20/1988 | CA1246968A1 Grain-oriented electrical steel sheet having stable magnetic properties resistant to stress-relief annealing, and method and apparatus for producing the same |
| 12/20/1988 | CA1246944A1 Structures fabricated from aluminium components and process involved in making these structures |
| 12/14/1988 | EP0294877A1 Use of electrodialysis for the regeneration of acid solutions |
| 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 | EP0294245A1 Metal surface refinement using dense alumina-based media |
| 12/07/1988 | EP0294134A2 Manufacture of ductile high-permeability grain-oriented silicon steel |
| 12/06/1988 | US4789409 Black conversion coating |
| 12/06/1988 | CA1245951A1 Process for the zinc/calcium phosphatizing of metal surfaces at low treatment temperatures |
| 11/30/1988 | CN87103015A Rust-removing and-preventing method for iron and steel |
| 11/29/1988 | US4788086 Phosphate and copper halide coating |
| 11/29/1988 | US4787942 Uniform films |
| 11/23/1988 | EP0291891A1 Process for applying conversion coatings on titanium |
| 11/23/1988 | CN87103466A High temp. manganese-parkerizing process in mechanical component |
| 11/22/1988 | US4786339 Jacketing steel objects |
| 11/17/1988 | EP0291443A1 Process and apparatus for applying a liquid treatment agent to steel tubes |
| 11/15/1988 | CA1244746A1 Method of bonding a high temperature resistant polymeric material to an aluminum base substrate |
| 11/15/1988 | CA1244641A1 Continuous vacuum deposition apparatus with control panels for regulating width of vapor flow |
| 11/09/1988 | EP0290196A2 Method for improving magnesium oxide steel coatings using non-aqueous solvents |
| 11/03/1988 | DE3713441A1 System for the automatic surface treatment of materials |
| 11/02/1988 | CN87103080A High-speed passivation treatment technology for iron and steel |
| 10/25/1988 | US4780153 Chromium-containing low-cure coating composition |
| 10/25/1988 | CA1243563A1 Heat resistant precoated steel sheet and process for the production thereof |