| Patents for C23G 1 - Cleaning or pickling metallic material with solutions or molten salts (8,361) |
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| 06/02/2000 | WO2000030988A1 Aqueous cleaning |
| 06/02/2000 | CA2352240A1 Aqueous cleaning |
| 05/31/2000 | DE19854592A1 Metallbearbeitungs- und Reinigungsverfahren Metalworking and cleaning process |
| 05/30/2000 | US6068001 Placing the material to be treating in a pickling bath containing hydrochloric acid, ferric salt, hydrogen fluoride, additives, agitating the bath by continuous air-flow, controlling the acid ph, feeding the oxidizers |
| 05/30/2000 | CA2003901C Method of and apparatus for recovering and reusing organic pickling vapors |
| 05/25/2000 | WO2000030162A1 Novel detergent and cleaning method using it |
| 05/25/2000 | DE19850530A1 Kreislaufverfahren zum Beizen von Kupfer und Kupferlegierungen Cycle process for pickling of copper and copper alloys |
| 05/18/2000 | WO2000028112A1 Method for decontaminating the surface of a component |
| 05/16/2000 | US6063744 Blend of fatty acids, glycol ethers, alcohol solvents, amides, alkoxylated phenol, polycarboxylic acid and alkalizing agents |
| 05/16/2000 | US6063206 De-oiling process using enzymes |
| 05/11/2000 | WO2000026441A1 Nitrate-free recycling pickling method for special steels |
| 05/11/2000 | WO2000026440A2 Circular method for pickling copper and copper alloys |
| 05/11/2000 | DE19851852A1 Verfahren zur Dekontamination einer Oberfläche eines Bauteiles A method for decontaminating a surface of a component |
| 05/09/2000 | US6060122 Contacting with an aqueous solution containing fluorides of boron, zirconium, titanium, and/or hafnium; nonionic surfactants; corrosion inhibitor; aluminum ions, solubilizer, and hydroxycarboxylic acids; use in beverage cans |
| 05/04/2000 | DE19850525A1 Regeneration of sulfuric acid-iron(III) sulfate pickling solution, used especially for special steels, involves perdisulfuric acid production in a spent solution electrolysis cell |
| 05/04/2000 | DE19850524A1 Nitratfreies Recycling-Beizverfahren für Edelstähle Nitrate-free recycling pickling process for stainless steels |
| 05/03/2000 | EP0997558A2 Process for operating a plant for the chemical or electrochemical treatment of aluminium surfaces and apparatus for the chemical or electrochemical treatment of aluminium surfaces |
| 04/27/2000 | WO2000023201A1 Superalloy component with abrasive grit-free coating |
| 04/20/2000 | WO2000022662A1 Inhibition of titanium corrosion |
| 04/19/2000 | CN1051570C Aqueous lubricant and surface conditioner for formed metal surfaces |
| 04/13/2000 | DE19842971A1 Process for pickling steel material comprises moving the material through a vessel and spraying with a pickling solution containing hydrochloric acid |
| 04/12/2000 | EP0660762B1 Oil based composition clean up method and composition for use therein |
| 04/06/2000 | WO2000019789A1 Printed wiring board and method for producing the same |
| 04/06/2000 | WO2000018986A1 Processes and apparatus for recovery and removal tin, lead and/or copper from solutions |
| 04/06/2000 | WO1999035505A3 Method for removing accumulated solder from probe card probing features |
| 04/05/2000 | EP0805713B1 Process and apparatus for purification of contaminated acids |
| 04/04/2000 | US6045719 Cooling circuits of internal combustion engines, as in cars; raise the high-temperature protection of nonferrous metals by customary inhibitor systems without a drop in protection for the other metals, especially aluminum alloys |
| 03/30/2000 | DE19843738A1 Surface activation of group IVb, Vb and VIb metals, especially nickel-titanium shape memory elements for micro-systems, comprises two-stage pickling in hydrofluoric acid-free solutions prior to metal coating |
| 03/29/2000 | CN1248642A Alkali degrease treating liquid for metal material and use method thereof |
| 03/28/2000 | US6043207 Non-caustic cleaning composition comprising peroxygen compound, meta/sesqui-silicate, chelate and method of making same in free-flowing, particulate form |
| 03/21/2000 | CA2182677C Acidic cleaning compositions |
| 03/16/2000 | WO2000014301A1 Alkaline liquid composition and method for degreasing metals |
| 03/15/2000 | EP0986096A2 Substrate-cleaning method and substrate-cleaning solution |
| 03/15/2000 | CN1247107A Matrix cleaning method and its cleaning liquid |
| 03/09/2000 | WO2000012661A1 Liquid neutral to alkaline hard-surface cleaning composition |
| 03/08/2000 | EP0984078A1 Process for producing and/or recovering hydrofluoric acid and nitric acid |
| 03/08/2000 | EP0983332A1 Composition for cleaning hard surfaces |
| 03/08/2000 | CN1246548A Process for removing deposited calcium carbonate |
| 03/07/2000 | US6034048 Non-caustic cleaning composition using an alkali salt |
| 03/07/2000 | US6033485 Process for the pickling of metallic materials |
| 03/02/2000 | WO2000011240A1 Detergents for metal good and method of cleansing metal good with the same |
| 03/01/2000 | EP0982394A1 Liquid neutral or alkaline hard-surface cleaning composition |
| 03/01/2000 | EP0981598A1 Process for removing tarnish from tarnished silverware |
| 02/24/2000 | WO2000009780A1 Automatic regulation and control of cleansing baths |
| 02/24/2000 | CA2369064A1 Automatic regulation and control of cleansing baths |
| 02/23/2000 | EP0845025A4 Composition and method for degreasing metal surfaces |
| 02/22/2000 | US6028048 High solubility in hard water; efficiency |
| 02/17/2000 | WO2000008652A2 Degreasing composition and methods using same |
| 02/17/2000 | WO2000008236A1 Agent and method for machining metal and for cleaning metal or anticorrosion treatment |
| 02/17/2000 | DE19857342A1 Cleaning of container, especially a nuclear power plant steam generator, by modifying the solution resulting from iron oxide dissolution to dissolve copper and/or copper compounds before emptying the container |
| 02/17/2000 | DE19836720A1 Automatic testing and control of cleaning baths, as used in metal processing, e.g. for cleaning metal pieces before anti-corrosion processes |
| 02/17/2000 | CA2339573A1 Agent and method for machining metal and for cleaning metal or anticorrosion treatment |
| 02/16/2000 | EP0979208A1 Composition and method for reducing copper oxide to metallic copper |
| 02/15/2000 | US6025199 Method for monitoring corrosion |
| 02/10/2000 | WO2000006797A1 Stripper for special steel |
| 02/10/2000 | WO2000006380A1 Removal of thermal barrier coatings |
| 02/10/2000 | DE19835328A1 Mittel und Verfahren für die Metallbearbeitung und für Metallreinigung oder Korrosionsschutz Means and methods for metalworking and metal cleaning and corrosion protection |
| 02/10/2000 | DE19833990A1 Beizmittel für Edelstähle Mordant for stainless steels |
| 02/10/2000 | CA2338484A1 Stripper for special steel |
| 02/09/2000 | CN1243889A Aqueous detergent for cleaning aluminum based alloy and method thereof |
| 02/02/2000 | EP0976853A1 Method for removing alkaline earth metal sulfate scale from a boiler or heat exchanger with use of sonic energy |
| 02/02/2000 | EP0976852A1 Aqueous cleaning solution and method for cleaning aluminium-based metals |
| 02/02/2000 | EP0975731A1 Ethylenediaminetetraacetic acid or its ammonium salt semiconductor process residue removal composition and process |
| 02/02/2000 | CN1049021C Titanium-phosphate-comprised liquid activating composition and powdered solid mixture and activating process of metal surface |
| 02/01/2000 | US6020292 Aqueous solution containing a quaternary ammonium hydroxide and corrosion inhibitor |
| 01/26/2000 | EP0974682A1 Method and apparatus for the chemical treatment of metalsurfaces |
| 01/26/2000 | EP0772696B1 Method for removing alkaline sulfate scale |
| 01/25/2000 | US6017399 Exposing steam phase having one or more volatile amines to the surface of component laden with solid deposit which has an acidic site and a basic site to absorp inorganic cation and anion and selective sorption of volatile amines |
| 01/25/2000 | CA2157916C Method of cleaning and maintaining potable water distribution pipe systems |
| 01/20/2000 | DE19858035A1 Verfahren zur chemischen Behandlung von Metalloberflächen und dazu geeignete Anlage Method for the chemical treatment of metal surfaces and to appropriate investment |
| 01/20/2000 | DE19835945C1 Installation for chemical and/or electrolytic coating of aluminum surfaces |
| 01/19/2000 | EP0972854A2 Process for pickling stainless steel |
| 01/19/2000 | EP0972004A4 Acid cleaning/deoxidizing aluminum and titanium without substantial etching |
| 01/19/2000 | EP0972004A1 Acid cleaning/deoxidizing aluminum and titanium without substantial etching |
| 01/19/2000 | EP0525032B1 Improved aqueous degreaser compositions |
| 01/18/2000 | CA2182676C Maleic acid-based aqueous cleaning compositions and methods of using same |
| 01/18/2000 | CA2015193C Thickened aqueous compositions |
| 01/13/2000 | WO2000002238A1 Post etch cleaning composition and process for dual damascene system |
| 01/12/2000 | EP0971050A2 Process for partially neutralizing acidic metal chloride containing solutions and for preparing metal oxides |
| 01/12/2000 | EP0970172A1 Composition and method for cleaning/degreasing metal surfaces, especially composites of copper and aluminum |
| 01/12/2000 | EP0813500B1 Purification of metal containing solutions |
| 01/05/2000 | EP0969122A1 Surface preparation process for deposition of ceramic coating |
| 01/05/2000 | EP0968756A1 Method of treating metal containing mineral acids |
| 01/05/2000 | EP0882120A4 Metal finishing process and composition |
| 01/05/2000 | CN1240239A Metal surface treatment method and metal structure unit with surface formed by using said method |
| 12/29/1999 | WO1999067442A1 Process for the preliminary treatment of a metallic workpiece before coating |
| 12/29/1999 | WO1999060448A8 Silicate-containing alkaline compositions for cleaning microelectronic substrates |
| 12/29/1999 | EP0967301A2 Pickling-activating solution for pre-treatment of aluminium-steel composites before electroless tin plating |
| 12/29/1999 | CA2335987A1 Process for the preliminary treatment of a metallic workpiece before coating |
| 12/23/1999 | WO1999065839A1 Alkaline water-based solution for cleaning metallized microelectronic workpieces and methods of using same |
| 12/22/1999 | EP0964940A1 Method for pickling products of a metal alloy in absence of nitric and for recovering exhausted pickling solutions and apparatus therefore |
| 12/22/1999 | EP0964736A1 Recovery and reuse of anionic surfactants from aqueous solutions |
| 12/22/1999 | CN1239156A Process for removing harmful rust from bronze articles with ammonia water and cyanide |
| 12/16/1999 | WO1999064646A1 Method for removing layers of hard material |
| 12/16/1999 | DE19926117A1 Liquid etchant useful for roughening copper, especially in laminated circuit board production |
| 12/15/1999 | CN1047409C Normal-temp copper pickling corrosion inhibitor |
| 12/14/1999 | US6001186 Acid cleaning/deoxidizing aluminum and titanium without substantial etching |
| 12/14/1999 | US6000411 Cleaning compositions for removing etching residue and method of using |
| 12/09/1999 | DE19829592C1 Mineral acids containing metals from pickling plants are processed and recovered |
| 12/09/1999 | DE19828811C1 Mordant activation solution for aluminum-steel compound material to be tin-plated |