| 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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| 03/01/1988 | US4728365 Room temperature blackening solution |
| 02/24/1988 | EP0256908A1 Composition and process for coating metallic parts and coated parts |
| 02/24/1988 | EP0080476B1 Corrosion inhibition in sintered stainless steel |
| 02/23/1988 | US4726886 Silane compound and polyvinyl pyrrolidone |
| 02/23/1988 | CA1233095A1 Process for producing grain-oriented electrical steel sheet having both improved magnetic properties and properties of glass film |
| 02/11/1988 | WO1988000986A1 Process for forming insulating film on electrical sheet |
| 02/09/1988 | US4724172 Thick coating compositions |
| 02/03/1988 | CN87104128A Phosphorization rust-remove method of hot-rolled thin steel plate |
| 02/02/1988 | US4722753 Mixed phosphates of zinc and cobalt, nickel, manganese or magnesium |
| 01/28/1988 | WO1988000622A1 Composition for treating metal surface and treating process |
| 01/20/1988 | CN87104190A Anticorrosion coating composition with improved stability, and coated substrate |
| 01/12/1988 | US4719082 Vinyl sulfonic acid - methacrylic acid copolymer passivators for high pressure boilers |
| 01/12/1988 | US4719038 Corrosion resistant, coated metal laminate, its preparation and coating materials |
| 01/12/1988 | US4718482 Fins for automobile or home air conditioners; surface treated aluminum |
| 01/07/1988 | EP0251738A2 Coating apparatus and process |
| 01/05/1988 | US4717439 Process for the treatment of copper oxide in the preparation of printed circuit boards |
| 01/05/1988 | US4717431 Nickel-free metal phosphating composition and method for use |
| 01/05/1988 | CA1230954A1 Surface-treated steel strips seam weldable into cans |
| 12/23/1987 | EP0250299A1 Anti-corrosion coating composition having an improved stability, and coated substrate |
| 12/23/1987 | EP0250056A1 A process for treating containers provided with a metal closure |
| 12/23/1987 | DE3611185A1 Apparatus and method for the surface treatment of wire or the like |
| 12/22/1987 | US4714752 Corrosion resistance, paint adhesion |
| 12/22/1987 | US4714517 Copper cleaning and passivating for tape automated bonding |
| 12/22/1987 | CA1230542A1 Insulative coating composition for electrical steels |
| 12/16/1987 | EP0249206A2 Process for obtaining chromate coatings |
| 12/16/1987 | CN86103910A Passivating process for surface of copper and its alloy |
| 12/15/1987 | US4713301 Sn-based multilayer coated steel strip having improved corrosion resistance, weldability and lacquerability |
| 12/15/1987 | US4713121 Alkaline resistant phosphate conversion coatings |
| 12/08/1987 | US4711667 Alkaline metal permanganate and alkaline metal tetraborate buffer |
| 12/08/1987 | CA1230078A1 Zinc phosphate coated metal and process of producing same |
| 12/02/1987 | EP0247910A2 Inorganic coating compositions |
| 11/25/1987 | EP0246578A1 Process for the treatment of heat exchanger surfaces |
| 11/24/1987 | US4708779 Chemical post-treatment of selectively galvanized steel strip and sheet |
| 11/24/1987 | US4708744 Bromate and nitroaromatic accelerator |
| 11/19/1987 | EP0245828A2 Surface treated steel material particularly electroplated steel sheet |
| 11/19/1987 | EP0245597A1 Corrosion resistant coating |
| 11/19/1987 | EP0245305A1 Copper oxide treatment in printed circuit board |
| 11/17/1987 | US4707722 Semiconductors, nickel, radiation, absorbers |
| 11/17/1987 | US4707415 Steel strips with corrosion resistant surface layers having good appearance |
| 11/17/1987 | US4707193 Cleaning, activation |
| 11/11/1987 | EP0244570A1 Process for determining the concentration of a grain refiner in a phosphate conversion coating bath |
| 11/11/1987 | CN87103418A Processes and compositions for coating metal surfaces |
| 11/10/1987 | US4705594 Composition and method for metal surface refinement |
| 11/10/1987 | US4705576 Acidic chromium containing coating solution for zinc or cadmium surfaces |
| 11/04/1987 | EP0244022A2 After-treatment process for phosphated metal surfaces |
| 11/04/1987 | EP0150219B1 Method of continuously coloring stainless steel |
| 11/03/1987 | CA1228770A1 Method of brazing an aluminum material |
| 10/27/1987 | US4702968 Aluminized steel, chromate coating, cured polyamideimide copolymer and a cured silicon modified polyester overcoating |
| 10/27/1987 | US4702793 Rapid formation of uniform metal oxide layer |
| 10/27/1987 | CA1228454A1 Corrosion-resistant steel strip having zn-fe-p alloy electroplated thereon |
| 10/15/1987 | DE3708909A1 Degreasing and corrosion-prevention agent |
| 10/15/1987 | DE3644887A1 Degreasing and anti-corrosive agent |
| 10/14/1987 | EP0240982A2 Process for treating iron or steel surfaces |
| 10/14/1987 | EP0240943A2 Process for applying conversion coatings to zinc or zinc alloy surfaces |
| 10/14/1987 | EP0240940A2 Composition for forming hydrophilic film on aluminum |
| 10/13/1987 | US4699839 Flame-sprayed metal oxide layer over cured inorganic binder containing dispersed aluminum binder air compressor blades for blast furnaces |
| 10/13/1987 | CA1228000A1 Chromium appearance passivate solution and process |
| 10/08/1987 | WO1987005949A1 Protective coating for metals |
| 10/07/1987 | EP0239688A1 Annealing separator used in the finishing annealing step for producing a grain-oriented electrical steel sheet |
| 10/07/1987 | CN87102614A Non-ferrous metal mechanical parts |
| 10/06/1987 | US4698269 Phosphatizing and chromate coating |
| 10/06/1987 | CA1227728A1 Method for improving the annealing separator coating on silicon steel and coating therefor |
| 09/29/1987 | US4696724 Liquid natural gas, liquid propane gas |
| 09/23/1987 | EP0127620B1 Electrolytic codeposition of zinc and graphite and resulting product |
| 09/22/1987 | US4695516 Heat resistant precoated steel sheet and process for the production thereof |
| 09/15/1987 | US4693754 Aluminum particles resistant to reaction with water |
| 09/09/1987 | EP0235297A1 Hot-dipped steel plate and process for its production |
| 09/09/1987 | CN87101667A Machine parts |
| 09/08/1987 | US4692282 Separation of stereoisomers |
| 09/08/1987 | US4692191 Method of improving functions of surface of alloy steel by means of irradiation of laser beam, and alloy steel and structure made by the method |
| 09/02/1987 | EP0234669A2 Mixture of magnesium oxide and a zirconium compound as a separating coating for annealing silicon steel |
| 09/01/1987 | US4690715 Disulfides and phosphines bonding with substrate and noble metals, silver, aluminum |
| 08/26/1987 | EP0233503A1 Process for applying oxalate coatings to stainless steel |
| 08/25/1987 | US4688411 Method for continuous drawing of wire rod |
| 08/20/1987 | DE3604792A1 Process for the production of tin-free objects by deep-drawing or ironing tinned sheet iron |
| 08/19/1987 | EP0232929A1 Process for facilitating the cold-forming of stainless steel |
| 08/11/1987 | CA1225310A1 Process for phosphating metals |
| 08/05/1987 | EP0231001A1 Method of applying fluorocarbon resins to stainless steel |
| 08/04/1987 | US4684453 Purification of dye baths |
| 07/29/1987 | EP0230320A1 Organic coated steel strip having improved bake hardenability and method for making |
| 07/28/1987 | US4683157 Thixotropic coating compositions and methods |
| 07/21/1987 | US4681641 Alkaline resistant phosphate conversion coatings |
| 07/21/1987 | CA1224390A1 Process for controlling zinc phosphating treating solutions |
| 07/16/1987 | DE3600415A1 Method and device for pretreating aluminium material intended for electroplating |
| 07/14/1987 | US4680064 Phosphate conversion coating accelerators |
| 07/14/1987 | CA1224121A1 Process for phosphating metals |
| 07/08/1987 | EP0228151A1 Acidic, aqueous phosphate-coating solutions for use in a process for phosphate-coating metal surfaces |
| 07/07/1987 | US4678519 Method of zinc phosphatization, activation and refining bath used in said method and corresponding concentrate |
| 07/07/1987 | US4678518 Carboxylic acid promoter, alcohol solubilizer |
| 07/07/1987 | CA1223943A1 Method and installation enabling, on the one hand, the knowledge in advance at a given moment of the result to which a given developing chemical medium necessarily leads and, on the other hand, the regulation of this medium to arrive at a particular |
| 06/30/1987 | US4676842 Protective coating for metals |
| 06/24/1987 | CN85108872A Stainless steel simultaneously double-color coloring method |
| 06/23/1987 | US4675054 Process for treating metal surface |
| 06/17/1987 | CN86108394A Process or producing heat pipe |
| 06/16/1987 | US4673445 Solution of stannous and cobalt or nickel compounds |
| 06/16/1987 | US4673444 Using acidic solution with coating accelerator |
| 06/16/1987 | EP0225650A2 Process for producing heat pipe |
| 06/09/1987 | US4671825 Chromate-phospate coating on aluminum; acrylic polymers, reducing agent, silica, fluorine compounds |
| 06/09/1987 | US4671824 Processes for producing improved wear resistant coatings on zirconium shapes |
| 06/03/1987 | EP0224190A2 Process for activating metallic surfaces prior to zinc phosphating |