| 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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| 06/28/1977 | US4032366 Grain-oriented silicon steel and processing therefor |
| 06/21/1977 | US4030945 Rinsing coated metallic surfaces |
| 06/21/1977 | US4030913 Nitro compounds |
| 06/14/1977 | US4029679 Protective metal coating |
| 06/14/1977 | US4029523 Solvent phosphatizing compositions yielding non water soluble coatings |
| 06/07/1977 | US4028205 Surface treatment of aluminum |
| 05/31/1977 | US4026737 Method for coloring a stainless steel |
| 05/31/1977 | US4026734 Method of coating titanium |
| 05/31/1977 | US4026728 Steel sheets and strips having a surface layer of M-Si-R |
| 05/24/1977 | US4025692 Method for forming corrosion-resistant coating on a steel sheet |
| 05/17/1977 | US4023986 Boron trifluoride, trifluoro-alkaryl amine |
| 05/10/1977 | US4022925 Process for coating metal surfaces with synthetic resins |
| 04/19/1977 | US4018628 Process for coloring aluminium |
| 04/12/1977 | US4017335 Liquid phosphatizing composition and use thereof |
| 04/12/1977 | US4017334 Process for treating aluminum cans |
| 03/29/1977 | US4014715 Solder cleaning and coating composition |
| 02/15/1977 | US4008299 Method of making a fibre of aluminium phosphate |
| 02/15/1977 | US4008101 Phosphoric acid |
| 02/01/1977 | US4006041 One step film-forming phosphatization of metallic surfaces and composition for effecting same |
| 01/25/1977 | US4005232 Coatings of metal phosphates on metals or glass |
| 01/25/1977 | US4005172 Solid complex phosphate of aluminum |
| 01/25/1977 | US4004951 Protective coating for aluminum products |
| 01/18/1977 | US4004064 Reaction product of aluminum, boron or titanium halide with a fluorohydrocarbon amine |
| 01/18/1977 | US4003761 Process for the production of sprayed phosphate coats on iron and steel |
| 01/18/1977 | US4003760 Method of applying protective coatings to metal products |
| 12/28/1976 | US4000012 Anticorrosive coating of steel |
| 12/21/1976 | US3998993 Electrical device having a metal surface bearing a corrosion inhibitor |
| 12/21/1976 | US3998670 Process for producing steel plate substrates for lacquering |
| 12/07/1976 | US3996115 Process for forming an anodic oxide coating on metals |
| 12/07/1976 | US3996074 Treating the steel with zinc phosphate and chromate, rubber |
| 12/07/1976 | US3996073 Insulative coating for electrical steels |
| 12/07/1976 | US3996072 Exchanging nitrate for nitrite anions in the solution |
| 11/30/1976 | US3994252 Method for the production of black plate with improved surface lubricity |
| 11/23/1976 | US3993510 Thixotropic chemical conversion material for corrosion protection of aluminum and aluminum alloys |
| 11/16/1976 | US3992454 Metal halide with a fluorohydrocarbon amine |
| 11/16/1976 | US3992300 Apparatus for controlling iron content of a zinc phosphating bath |
| 11/09/1976 | US3990920 Metal treating compositions of adjusted pH |
| 11/02/1976 | US3989624 Method and apparatus |
| 11/02/1976 | US3989550 Etching, treating with fluoride, chromate, phosphate, 1a silicate, baking |
| 10/19/1976 | US3986897 Aluminum treatment to prevent hillocking |
| 10/19/1976 | US3986843 Process for manufacturing chromated electro-galvanized steel sheet and sheet made thereby |
| 10/12/1976 | US3985585 Process for treating aluminum with ferricyanide compound |
| 10/12/1976 | US3985584 Metal protective coating compositions, their preparation and use |
| 10/12/1976 | US3985583 Method for forming an insulating coating on an oriented silicon steel sheet |
| 09/28/1976 | US3982968 Method for the manufacture of a cold-rolled steel strip in thin and super-thin metal plate thickness for producing stretch-formed cans or other deep-drawn parts |
| 09/28/1976 | US3982951 Aluminum chromate protective coatings for aluminum |
| 08/31/1976 | US3977912 Process for reducing the rate of sludge formation in crystalline phosphatizing baths |
| 08/17/1976 | US3975215 Cleaner for tin plated ferrous metal surfaces |
| 08/17/1976 | US3975214 Tannin containing compositions |
| 07/27/1976 | US3971674 Borate or silicate |
| 07/27/1976 | US3971539 Method for preventing the adhesive deposition of sludge on the surface of parts of a plant for treating metal surfaces |
| 07/20/1976 | US3970482 Zinc containing coating |
| 07/13/1976 | US3969153 Method of manufacturing a stainless steel boiler tube with anticorrosive coating |
| 07/13/1976 | US3969152 Rare earth metal rinse for metal coatings |
| 07/06/1976 | US3968313 Silica-tannin colloidal dispersion |
| 07/06/1976 | US3967984 Method for treating coated ferrous substrates |
| 06/29/1976 | US3966502 Zirconium rinse for phosphate coated metal surfaces |
| 06/22/1976 | US3964939 Bodies including passivated metal particles |
| 06/22/1976 | US3964936 Coating solution for metal surfaces |
| 06/15/1976 | US3963530 Sodium, (iron, chromium) oxide, iron oxide |
| 06/15/1976 | US3963528 Hydrogen peroxide, permanganate |
| 06/15/1976 | US3963527 Sodium dichromate and nitrate, formic or chloroformic acid, formaldehyde |
| 06/08/1976 | US3962061 Process for coating aluminum or aluminum alloy |
| 06/08/1976 | US3961993 Coated metal article and method of coating |
| 06/08/1976 | US3961992 Phosphated metal, formaldehyde-hydroxyaromatic compound reaction product |
| 06/08/1976 | US3961991 Method for chemical treatment of the surface of an iron substrate with phosphoric acid solutions |
| 06/01/1976 | US3960610 Process for coating metals |
| 06/01/1976 | US3960592 Phosphates |
| 05/25/1976 | US3959034 Method of providing an object of silicon steel with a heat-resistant, electrically insulating coating |
| 05/18/1976 | US3957543 Method for rinsing a conversion coated metal surface |
| 05/04/1976 | US3955017 Method of coating metal phosphates on organic polymeric substrates |
| 05/04/1976 | US3954512 Protective coating of ferrous base metal articles |
| 05/04/1976 | US3954511 Surface treatment of a weather-resistant steel |
| 05/04/1976 | US3954510 Metal treating compositions of controlled pH |
| 04/13/1976 | US3950193 Tarnish resistant copper and copper alloys |
| 04/06/1976 | US3948786 Insulative coating for electrical steels |
| 04/06/1976 | US3948689 Chromic-phosphoric acid coated aluminized steel |
| 04/06/1976 | US3948687 Steels; polytetrafluoroethylene; chromic acid or phosphoric acids and their magnesium salts |
| 03/30/1976 | US3947606 Process for producing chemical compounds applicable to surfaces in the form of thin layers |
| 03/23/1976 | US3945899 Process for coating aluminum or aluminum alloy |
| 03/16/1976 | US3944449 Method of producing tarnish resistant copper and copper alloys and products thereof |
| 03/16/1976 | US3944189 Door opening and closing apparatus for tumbling barrel |
| 03/09/1976 | US3942989 White rust prevention for zinc coated surfaces |
| 03/02/1976 | US3941628 Flexible printed circuit |
| 03/02/1976 | US3941627 Method of producing tarnish resistant copper and copper alloys and products thereof |
| 02/24/1976 | US3940303 Method of producing tarnish resistant copper and copper alloys and products thereof |
| 02/24/1976 | US3940291 Silicon |
| 02/24/1976 | US3940280 Concentrate for liquid coating composition for metal substrates |
| 02/17/1976 | US3939014 Aqueous zinc phosphating solution and method of rapid coating of steel for deforming |
| 02/03/1976 | US3936583 Prevention of corrosion in metals |
| 02/03/1976 | US3936342 Steel plate bonding process and primer composition |
| 01/27/1976 | US3935349 Process of coating an aluminum article |
| 01/27/1976 | US3935041 Method for treatment fluid application and removal |
| 01/27/1976 | US3935035 Chromium compound |
| 01/13/1976 | US3932237 Method for forming an insulating glass film on surfaces of an oriented silicon steel sheet |
| 01/13/1976 | US3932201 Silicon-containing steel, zinc permanganate magnesium sulfate |
| 01/13/1976 | US3932198 Coating solution having trivalent chromium and manganese for coating metal surfaces |
| 01/06/1976 | US3930906 Method for forming an insulating glass film on a grain-oriented silicon steel sheet having a high magnetic induction |
| 01/06/1976 | US3930905 Heat resistant insulating coating layer of calcium titanate |
| 01/06/1976 | US3930898 Exposing surface to a mineral acid solution of copper sulfate, chloride or nitrate |