| 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) |
|---|
| 03/13/1979 | US4144145 Process for recovery of reusable chromic acid from the waste chromic acid solution containing impurities |
| 03/13/1979 | CA1050480A1 Protective coating for ferrous bodies |
| 03/06/1979 | US4143205 Phosphatized and painted metal articles |
| 03/06/1979 | US4142917 Treatment of zinc surfaces to form a zinc phosphate coating |
| 02/27/1979 | US4141758 Chromium trioxide, perchloric acid, hydrofluoric acid, protective, chromate |
| 02/20/1979 | US4140551 Low temperature microcrystalline zinc phosphate coatings, compositions, and processes for using and preparing the same |
| 02/13/1979 | CA1048389A1 Peroxide acceleration with phosphate neutralization |
| 02/06/1979 | US4138526 Process for producing good adherence between a metal and polysulphide material and articles produced thereby |
| 02/06/1979 | US4138121 Tone arm assembly |
| 02/06/1979 | CA1047898A1 Metal surface treatment |
| 01/30/1979 | CA1047372A1 Method for forming an insulating glass film on a grain-oriented silicon steel sheet having a high magnetic induction |
| 01/23/1979 | US4136073 Process for treating an aluminum surface |
| 01/23/1979 | CA1046912A1 Treatment of metal surfaces with trivalent chromium solutions |
| 01/23/1979 | CA1046872A1 Metal surface treating aqueous polymer zirconium composition and process |
| 01/02/1979 | US4132572 Compositions for treatment of metallic surfaces by means of fluorophosphate salts |
| 01/02/1979 | CA1045524A1 Electrical device having a metal surface bearing a corrosion inhibitor |
| 12/26/1978 | US4131489 Chromate conversion composition and method for coating aluminum using low concentrations of chromate, phosphate and fluoride ions |
| 12/26/1978 | CA1044961A1 Apparatus and method for surface treating metal articles |
| 12/19/1978 | US4130446 Process for phosphate conversion coating with treatment of rinse water by reverse osmosis and ion exchange |
| 12/19/1978 | US4130431 Oxytitanic or peroxytitanic ion |
| 12/12/1978 | CA1044123A1 Cold rolled steel strip |
| 12/05/1978 | US4128494 Activators for percompounds |
| 12/05/1978 | CA1043673A1 Organic coating characteristics of cold rolled steel |
| 11/28/1978 | USRE29852 Polychloroalkane, metal halide, fluoroalkyl aryl |
| 11/28/1978 | US4127429 Forsterite insulating films formed on surface of a grain-oriented silicon steel sheet having a high magnetic induction and a method of forming the same |
| 11/28/1978 | CA1043239A1 Process for the production of sprayed phosphate coats on iron and steel |
| 11/21/1978 | US4126490 Composition for forming chromate coating |
| 11/21/1978 | US4126469 Sodium metasilicate, phosphoric acid, sodium nitrate, zinc chloride |
| 11/14/1978 | CA1042322A1 Coatings for silicon steel |
| 11/07/1978 | USRE29827 Compositions and processes for producing chromium conversion coatings on surfaces of zinc or cadmium |
| 11/07/1978 | US4124414 Post phosphating inhibiting rinse |
| 11/07/1978 | CA1041942A1 Etching aluminium foil with subsequent application of powdered aluminium |
| 10/31/1978 | US4123562 Rinsing with benzotriazole and coating with methacrylate homopolymer or copolymer |
| 10/31/1978 | US4123290 Zinc and/or aluminum particles, urea, zinc compound |
| 10/17/1978 | US4120702 Treating a silicon steel material having a silicate protective coating thereon with an aqueous solution containing phosphates to form a further protective coating |
| 10/03/1978 | US4118303 Apparatus for chemically treating a single side of a workpiece |
| 10/03/1978 | US4118301 Apparatus for electrochemical finishing of stainless steel |
| 10/03/1978 | US4118253 Halogenated solvent, solubilizers, phosphoric acid, water |
| 10/03/1978 | US4118252 Process for albedo control of molybdenum articles |
| 10/03/1978 | CA1039591A1 Treated substrate for the formation of drop-wise condensates and the process for preparing same |
| 09/26/1978 | CA1039157A1 Phosphate film layering on metallic surfaces |
| 09/26/1978 | CA1039129A1 Rinsing coated metallic surfaces |
| 09/12/1978 | US4113520 Method of forming an aluminum oxide coating |
| 09/12/1978 | US4113519 Phosphating of metallic substrate with electrolytic reduction of nitrate ions |
| 09/05/1978 | US4111722 Tannin treatment of aluminum with a fluoride cleaner |
| 08/29/1978 | US4110129 Titanium ion and phosphoric acid, phytic acid or tannin or esters or salts |
| 08/29/1978 | US4110128 Solution and procedure for depositing a protective coating on galvanized steel parts, and solution regeneration procedure |
| 08/29/1978 | US4110127 Procedure for depositing a protective precoating on surfaces of zinc-coated ferrous metal parts against corrosion in presence of water |
| 08/29/1978 | US4110120 Alite cement, calcium chromate |
| 08/29/1978 | US4110117 Coating composition |
| 08/22/1978 | USRE29739 Process for forming an anodic oxide coating on metals |
| 08/22/1978 | US4108690 Oxidation |
| 08/22/1978 | US4108689 Process for improving the surfaces of roller bodies and balls |
| 08/08/1978 | US4105443 Metal-forming dies |
| 08/01/1978 | US4104424 Process for coating metals |
| 08/01/1978 | US4104423 Corrosion inhibitors |
| 08/01/1978 | US4104419 Surface treatment of a tin-plate |
| 07/25/1978 | US4102710 Methylene chloride, phosphoric acid, water, phenolic stabilizer |
| 07/18/1978 | US4101346 Long chain carboxylic acid |
| 07/18/1978 | US4101339 With aqueous solution of a thiourea compound and a vegetable tannin at ph of 2 to 6.5 |
| 07/11/1978 | US4099989 Hydrophobic |
| 06/27/1978 | US4097312 Oxidation, stabilization with hot aqueous alkaline solution containing long chain aliphatic carboxylic acid or carboxylate |
| 06/27/1978 | US4097311 Oxides of carbon, silicon, magnanese, chromium, nickel and iron as a coating |
| 05/30/1978 | US4091954 Solution having ions of phosphate, chromium and fluoride, glycerol |
| 05/16/1978 | US4089710 Phosphating method with control in response to conductivity change |
| 05/16/1978 | US4089709 Method for passivating aluminum layers on semiconductive devices |
| 05/16/1978 | US4089708 Sodium phosphates, ammonium tungstate, ethylene oxide nonylphenol adduct |
| 05/16/1978 | US4089707 Method of improving corrosion resistance of lead and lead alloy coated metal |
| 05/02/1978 | US4087288 Black copper oxide absorber, selectivity, chromium and ammonium ions |
| 04/25/1978 | US4086182 Applying a polymeric esterification product |
| 04/25/1978 | US4086103 Dissolving nitrogen peroxide in acidic zinc phosphate or manganese phosphate, coating metal substrate |
| 04/18/1978 | US4085131 Catalytic deposit of heavy metal oxide |
| 04/04/1978 | US4082604 Forming conversion coating on aluminum metallization |
| 03/07/1978 | US4077851 Patterned chromate film process |
| 02/21/1978 | US4075370 Slurring |
| 02/21/1978 | US4075040 Titanium and titanium alloy surface preparation method for subsequent bonding |
| 02/14/1978 | US4074011 Topcoated phosphated bolts, nuts and washers |
| 02/14/1978 | US4073066 Methylene chloride phosphatizing |
| 01/31/1978 | US4071380 Method for treating oxidized steel surfaces |
| 01/31/1978 | US4071379 Phosphating method |
| 01/24/1978 | US4070521 Trace elements, iron, phosphorus, oxygen, carbon, nitrogen |
| 01/24/1978 | US4070193 Sodium bichromate, chromic acid sulfuric acid and water |
| 01/10/1978 | US4067293 Plant for surface treating, in particular pickling and phosphatizing, metallic work pieces |
| 12/27/1977 | US4065327 On zinc or cadmium using thioglycolate, thiosulfate or thiourea |
| 12/20/1977 | US4063969 Corrosion resistance |
| 12/20/1977 | US4063968 Formation of nickel phosphate coatings on iron or steel |
| 11/29/1977 | US4060433 Foam phosphatizing method and composition |
| 11/22/1977 | US4059452 Hexavalent chromium compound and ethoxylated nonionic surfactant |
| 11/08/1977 | US4057440 Scale reducer for zinc phosphating solutions |
| 11/01/1977 | US4056409 Methylene chloride, water, alcohol, phosphoric acid |
| 10/18/1977 | US4054466 Tannin treatment of aluminum |
| 10/11/1977 | US4053329 Method of improving corrosion resistance of metal substrates by passivating with an onium salt-containing material |
| 10/11/1977 | US4053328 Zinc phosphate coating process |
| 10/04/1977 | US4052232 A polyacrylic acid or polyacrylamide to modify physical form of sludge produced |
| 10/04/1977 | US4052231 Xanthan gum, chromic acid |
| 09/20/1977 | US4049471 Technique for stabilizing contact resistance of gold plated electrical contacts |
| 08/30/1977 | US4045253 A base, an oxygen containing gas, hydrazine, an iron complexing agent |
| 08/02/1977 | US4039353 Post-treatment of conversion-coated metal surfaces |
| 07/19/1977 | US4036667 Process for producing improved, protective conversion coatings on aluminum and its alloys, wherein aluminum is the principal constituent |
| 06/28/1977 | US4032675 Method for producing coated electrical steel sheets having excellent punchability, weldability, electrical insulation and heat resistance |