| 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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| 09/08/1993 | EP0558581A1 Composition and method for treating tin plated steel surface. |
| 09/07/1993 | US5242714 Process for forming protective base coatings on metals |
| 09/07/1993 | US5242488 Coating composition and method of forming |
| 09/07/1993 | CA1321859C Conversion coating solution for treating metal surfaces |
| 09/01/1993 | EP0557531A1 Aluminum alloy sheet for automotive body and production thereof |
| 09/01/1993 | CN1075756A Chromating method of zinc-based plated steel sheet |
| 08/25/1993 | EP0556250A1 Coating composition and process |
| 08/24/1993 | US5238506 Phosphate coating composition and method of applying a zinc-nickel-manganese phosphate coating |
| 08/24/1993 | US5238505 Phosphate compound, tellurium compound, water, and alpha-substituted organic acid |
| 08/24/1993 | CA1321532C Phosphate coating composition and method of applying a zinc-nickel phosphate coating |
| 08/17/1993 | US5236565 Process of phosphating before electroimmersion painting |
| 08/17/1993 | US5236519 Method for lubricating treatment of aluminum |
| 08/11/1993 | CN1075176A Treating liquid for rusty surface of steel |
| 08/11/1993 | CN1075175A Pre-treatment agent for metal material surface |
| 08/10/1993 | US5234714 Chromate/silicate aluminum surface treatment for heat exchangers |
| 08/10/1993 | US5234573 Method of surface treatment of copper foil for printed circuit boards and copper foil for printed circuit boards |
| 08/10/1993 | US5234509 Cold deformation process employing improved lubrication coating |
| 08/05/1993 | WO1993015155A1 Autodeposition coating composition |
| 08/05/1993 | WO1993015154A1 Autodeposition coating composition |
| 08/05/1993 | DE4302532A1 Pretreatment equipment for metal parts by means of chemical solns. - includes treatment stations, interchangeable dip tank and continuous parts conveyor with vertical motion of parts |
| 08/05/1993 | CA2128095A1 Autodeposition coating composition |
| 08/05/1993 | CA2128087A1 Autodeposition coating composition |
| 08/04/1993 | EP0554179A1 Concentrate for activating and refining bath and bath obtained |
| 08/04/1993 | EP0553271A1 Preatment for zinc and zinc alloys prior to chromating. |
| 08/04/1993 | EP0553164A1 Method for chromating treatment of zinc coated steel. |
| 08/04/1993 | CN1074950A Chemical blacking agent for surface of galvanized workpiece |
| 08/03/1993 | US5232523 Phosphate coatings for metal surfaces |
| 08/03/1993 | CA1320898C Compositions useful in copper oxidation, and a method to prepare copper oxidation solutions |
| 07/28/1993 | EP0552830A1 Process for improving the adhesion between different layers in the fabrication of laminated printed circuits, and compositions for carrying out this process |
| 07/28/1993 | CN1074716A Metal surface treating liquid |
| 07/28/1993 | CN1021705C Passivating liquid for surface of galvanized steel plate |
| 07/28/1993 | CA2083454A1 No-rinse process |
| 07/27/1993 | US5230750 Chromating method of zinc-based plated steel sheet |
| 07/22/1993 | WO1993014241A1 A method for the acidic conversion treatment of aluminum containing metal |
| 07/22/1993 | CA2127377A1 A method for the acidic conversion treatment of aluminum containing metal |
| 07/20/1993 | US5229215 Brass-plated steel wire |
| 07/13/1993 | US5226976 Metal treatment |
| 07/07/1993 | CN1073897A Ultrasonic treatment method and equipment for metal surface |
| 06/30/1993 | EP0549502A1 Multilayer coating, its process and application |
| 06/29/1993 | CA1319591C Non-chrome cleaner/deoxidizer system |
| 06/29/1993 | CA1319571C Treatment method for imparting antimicrobial and hydrophilic properties to aluminum surfaces |
| 06/24/1993 | WO1993012268A1 A process and composition for treating the surface of tin-plated steel |
| 06/22/1993 | US5221371 Non-toxic corrosion resistant conversion coating for aluminum and aluminum alloys and the process for making the same |
| 06/22/1993 | US5221370 Surface treatment of metal with aqueous zinc phosphate solution containing silicotungstic acid and/or silicotung-state |
| 06/16/1993 | EP0545993A1 Composition and method for chromating treatment of metal. |
| 06/15/1993 | US5219617 Corrosion resistant coated articles and process for making same |
| 06/15/1993 | US5219481 Oxime compound, preparation and use for coating and lubricating metals |
| 06/10/1993 | WO1993011278A1 Aluminum alloy plate |
| 06/09/1993 | DE4202880C1 Centrifuge basket for fluid treatments - has cover for basket holder at a mounting within the container without cover locks or seals |
| 06/08/1993 | USRE34272 Oxalic acid, a thiocyanate salt, and a nitrobenzenesulfonate salt |
| 06/08/1993 | CA2013601C Highly corrosion-resistant, colored thin film-coated steel sheet having excellent press-processability and spot-weldability |
| 06/03/1993 | DE4139679A1 Prodn. of protective coating on aluminium@ components - for construction industry, by natural oxidn. in strongly oxidising media, followed by anodic oxidn., obviating oil, grease application |
| 06/02/1993 | EP0544650A1 A process for phosphate-coating metal surfaces |
| 06/02/1993 | CN1072735A Pre-treating zinciferous surfaces before conventional chromating to improve rust resistance |
| 06/02/1993 | CN1021063C Passivating liquid for steel and iron surface treatment |
| 06/01/1993 | CA1318579C Enhanced stability anti-corrosion coating composition, and coated substrate |
| 05/27/1993 | WO1993010278A1 A method for post-treatment of an article with a metallic surface as well as a treatment solution to be used in the method |
| 05/27/1993 | WO1993010277A1 Improved method for bonding copper to a polymeric material |
| 05/19/1993 | EP0541997A2 Surface treatment method of a copper foil for printed circuits |
| 05/19/1993 | CN1072217A Conversion rust-resisting liquid |
| 05/19/1993 | CN1020763C Method for parkerizing film forming on surface of iron and steel |
| 05/18/1993 | US5211769 Corrosion resistance |
| 05/18/1993 | US5211663 Passivation methods for metallic medical implants |
| 05/18/1993 | CA1317858C Sn-based multilayer coated steel strip having improved corrosion resistance, weldability and lacquerability and method for producing same |
| 05/13/1993 | WO1993009266A1 Phosphate conversion coating composition and process |
| 05/13/1993 | WO1993009265A1 Treatment for the formation of a corrosion resistant film on metal surfaces |
| 05/13/1993 | CA2121486A1 Treatment for the formation of a corrosion resistant film on metal surfaces |
| 05/12/1993 | EP0541073A1 Method for minimizing surface roughening of tungsten-containing rolls and other metallic articles |
| 05/11/1993 | US5209788 Amino Acid or Amino Alcohol, Group 4B Metal Compound |
| 05/05/1993 | CN1071791A Renewal method of waste silicon steel sheet of motor stator |
| 05/05/1993 | CN1071712A Process for passivation of heat treatment tool |
| 05/05/1993 | CN1071711A Iron dust removing parkerizing agent preparing process and application |
| 05/05/1993 | CN1071710A Comprehensive treatment agent for ferrous metal surface |
| 05/05/1993 | CN1020479C Passivating process for surface of copper and its alloy |
| 05/04/1993 | US5207926 Removal of rusts from water treatment process with sodium hydroxide |
| 05/04/1993 | US5207840 Spraying and immersion metal ions |
| 04/29/1993 | DE4135524A1 Chrome plating of zinc@, cadmium@ and their alloys - using aq. soln. of chromium (III) oxalate complex, at acidic pH to form blue corrosion-resistant coating |
| 04/27/1993 | US5205874 Process of protecting metallic and wood surfaces using silicate compounds |
| 04/21/1993 | EP0538028A2 Improved method for applying tellurium-containing coatings to metallic surfaces using cyclodextrins/tellurium compositions |
| 04/20/1993 | US5203930 Process of forming phosphate coatings on metal surfaces |
| 04/16/1993 | CA2080033A1 Method for applying tellurium-containing coatings to metallic surfaces using cyclodextrin/tellurium compositions |
| 04/14/1993 | EP0536993A1 Improved method for applying tellurium-containing coatings to metallic surfaces using organic acids |
| 04/08/1993 | DE4133102A1 Treating phosphated metal surface - using nonionic surfactant soln. before electro-dipping lacquering using e.g. alkyl poly-alkyl-ethylene glycol ether |
| 04/08/1993 | CA2079722A1 Method for applying tellurium-containing coatings to metallic surfaces using organic acids |
| 04/06/1993 | US5200276 Color-coated article and method for producing the same |
| 04/06/1993 | US5200000 Controlling the concentration of aluminum ions by applying phosphate coatings having fluorine ions forming complexes; wet adhesion, corrosion resistance; automobiles |
| 03/31/1993 | EP0534120A1 Chromium-free method and composition to protect aluminium |
| 03/31/1993 | EP0533823A1 Liquid composition and process for treating aluminium or tin cans to impart corrosion resistance and reduced friction coefficient. |
| 03/31/1993 | CN1020196C Watery coating with rust |
| 03/30/1993 | US5197536 Polymer laminated drag cast can stock and method |
| 03/30/1993 | CA1315422C Detection system for chemical analysis of zinc phosphate coating solutions |
| 03/26/1993 | WO1993006259A1 Coating composition and process |
| 03/26/1993 | CA2119892A1 Coating composition and process |
| 03/25/1993 | DE4131542A1 Corrosion-resistant coating applied to steel pipe interior - contains chromate and phosphate and metallic filler and is mixed with water and then heated |
| 03/24/1993 | EP0532779A1 Coated stainless steel strips and process for making |
| 03/23/1993 | US5195243 Method of making a coated porous metal panel |
| 03/19/1993 | CA2051791A1 Corrosion-resistant precoated steel sheet suitable for electrodeposition finish coating |
| 03/18/1993 | WO1993005201A1 Combined process for cleaning and rustproofing soiled iron- or steel-based metal surfaces |
| 03/18/1993 | WO1993005198A1 Process for treating metal with aqueous acidic composition that is substantially free from chromium (vi) |
| 03/17/1993 | EP0531575A1 Corrosion-resistant precoated steel sheet suitable for electrodeposition finish coating |