Patents for C23G 1 - Cleaning or pickling metallic material with solutions or molten salts (8,361)
06/1999
06/16/1999EP0922514A2 Apparatus for removing ceramic shell mold material from castings by caustic spraying
06/16/1999EP0922124A1 Removal of fluoride-containing scales using aluminum salt solution
06/16/1999EP0782611A4 Aqueous metal cleaner
06/15/1999US5912219 Comprising organic acid, cationic, zwitterion, or amphoteric surfactants; odorless; removes limescale
06/15/1999US5911835 Treatment of substrates with oxyamines, hydrazines, alkanolamines and water
06/09/1999EP0817871B1 Corrosion protective cleaning agent for tin-plated steel
06/08/1999US5909742 Metal cleaning method
06/03/1999WO1999027162A1 Method for pickling steel products
06/01/1999US5908511 Using mixture of sulfuric acid, iron compound, hydrogen fluoride and hydrogen peroxide
05/1999
05/27/1999WO1999025798A1 Composition and process for cleaning and deoxidizing aluminum
05/27/1999CA2307642A1 Composition and process for cleaning and deoxidizing aluminum
05/26/1999EP0725698A4 Acid assisted cold welding and intermetallic formation and dental applications thereof
05/25/1999US5906215 2-butoyxethanol, the tetra sodium salt of ethylenediamine tetra acetic acid, sodium metasilicate, sodium laureth sulfate and water
05/20/1999WO1999024643A1 Method of measuring acid concentration, and automatic control method and apparatus
05/20/1999WO1999024642A1 Method for separating layers from articles
05/20/1999WO1999014165B1 Method for treating metal containing acid solutions from surface treatment installations
05/19/1999EP0916083A1 Corrosion monitoring process
05/18/1999US5904157 Exposure to acid bath containing sulfuric acid and hydrogen peroxide at higher temperature and then to an oxidizing bathcontaining hydrogen proxide at lower temperature, rinsingwith high pressure water jets; drawn copper wire
05/14/1999WO1999023283A1 Rust remover and preventer
05/14/1999WO1999023193A2 Process for avoiding foaming during cleaning of metal salts of intermediate length carboxylic acids from surfaces
05/12/1999EP0915186A1 Chromium-containing hot rolled steel strip and its production method
05/12/1999EP0915185A1 Method of making austenitic stainless steel sheet
05/12/1999EP0914225A1 Metal fibre agglomerate and process for manufacturing the same
05/11/1999US5902780 Comprising hydroxylamine, about 10-80% by weight of an alkanolamine which is miscible with said hydroxylamine, and water
05/11/1999US5902415 Aqueous sodium salt metal cleaner and method of using same
05/11/1999CA2018631C Process for a passivating postrinsing of phosphate layers
05/06/1999EP0766751B1 Method for pickling metal materials
05/05/1999CN1216059A Composition for cleaning and etching electronic display and substrate
05/05/1999CN1216011A Metal fibre agglomerate and process for mfg. same
05/04/1999CA2023943C Process for removing copper and copper oxide deposits from surfaces
04/1999
04/29/1999WO1999021220A1 Methods and apparatus for cleaning semiconductor substrates after polishing of copper film
04/28/1999EP0799293A4 Cleaning and surface conditioning of formed metal surfaces
04/27/1999US5898024 A cleaner consists of a peroxy compound, an anhydrous and hydrous metasilicate or sequisilicate and a chelate selected from ethylenediamine tetraacetic acid, poly(alkylphophonic acid) and n-hydroxyethylethylenediaminetriacetic acid
04/27/1999US5896664 Process for producing aluminum alloy bearing
04/22/1999WO1999019541A1 Container for stripping silverware and related means
04/21/1999EP0909344A1 Steel pickling process in which the oxidation of the ferrous ion formed is carried out electrolytically
04/21/1999EP0909311A1 Post clean treatment
04/21/1999EP0877833A4 Aluminum deoxidizing inhibitor, composition and process
04/21/1999EP0707664B1 Storage stable titanium phosphate containing activating composition
04/21/1999CN1214376A Method for preventing contamination by lead from metallic piping devices
04/20/1999US5895763 Controlled carbonate removal from water conduit systems
04/14/1999EP0908534A1 Aqueous composition for low-temperature metal-cleaning and method of use
04/14/1999CN1213649A Descaling agent for gas water heater
04/07/1999EP0804635B1 Non-silicated soft metal safe product
04/07/1999CN1213394A Method for fluidizing tars
03/1999
03/25/1999WO1999014165A1 Method for treating metal containing acid solutions from surface treatment installations
03/18/1999DE19740164A1 Processing acid solutions from metal or glass surface treatment plant
03/09/1999US5879465 Removing oxides of iron scale from the surfaces of stainless steel strips
03/03/1999EP0898621A1 Process for removing soap-contaminated conversion layers on metal workpieces
03/03/1999CN1042353C Washing method using washing agent
03/02/1999US5876608 Purification method
03/02/1999CA2040786C Method for descaling hot-rolled stainless steel strip
02/1999
02/23/1999CA2044497C Surface treating agent for aluminum line pattern substrate
02/10/1999EP0895962A1 Process and apparatus for obtaining or recovering acids from solutions
02/09/1999US5868855 Surface processing method and surface processing device for silicon substrates
02/04/1999DE19733064A1 Reclaiming chromic-containing systems
02/03/1999CN2306233Y Self-centric liquid surface covering ball
01/1999
01/27/1999EP0892840A1 A composition for cleaning and etching electronic display and substrate
01/26/1999US5863345 Washing dishes, cooking pan with a detergent solution comprising an anhydrous metasilicate or sesquisilicate, at least one of a sulfate or carbonate, a chelate, one of a hydrated metasilicate or sesquisilicate and a phosphate
01/21/1999DE19730372A1 Cleaning and depassivating metal surface to be nitrided or carbonitrided
01/20/1999EP0892084A1 Method for preventing contamination by lead from metallic piping devices
01/20/1999EP0733091A4 Wheel cleaning composition containing acid fluoride salts
01/13/1999EP0768997B1 Polyalkoxyl terpene derivatives and compositions containing same
01/12/1999US5858947 Comprising ethylene diaminedisuccinic acid
01/12/1999US5858463 Immersing worn die in a solution of nitric acid; forming fresh abrasion-resistant coating on surface; machining to adjust pattern of die
01/12/1999US5858118 Cleaning and passivating a chromium containing stainless steel surface by treating with potassium hydroxide or sodium hydroxide, a chelant, and water; corrosion resistance
01/07/1999EP0666897B1 Method and composition for degreasing the surface of an object
01/07/1999DE19727939A1 Delivery of rinsing liquid in optimal amounts
01/06/1999CN1041538C Method for treating pickle waste liquor
01/05/1999US5855805 Microetching and cleaning of printed wiring boards
12/1998
12/30/1998EP0748396B1 Electrolysis process for regenerating a ferric chloride or sulphate solution, in particular for spray etching steel
12/29/1998US5854145 Corrosion inhibitor solution applicator
12/29/1998US5853490 Use of bicarbonates and carbonates in metal cleaning formulations to inhibit flash rusting
12/29/1998US5853489 Cleaning process
12/23/1998EP0885985A1 Method of treating a metal
12/22/1998US5851304 Process for pickling a piece of steel and in particular a sheet strip of stainless steel
12/10/1998DE19723682A1 Cleaning and pickling of surfaces, with regeneration of the cleaning and pickling agents
12/09/1998EP0882120A1 Metal finishing process and composition
12/09/1998EP0882110A2 Method for fluidizing tars
12/09/1998CN1201079A Alkali Detergent composition for steel sheet
12/09/1998CN1041118C Scaling agent for water tank of automobile
12/02/1998EP0880566A1 Use of quaternized imidazoles as nonferrous metal corrosion inhibitors and antifreeze concentrates and coolant compositions containing said corrosion inhibitors
12/01/1998US5843317 Recovery and reuse of anionic surfactants from aqueous solutions
12/01/1998US5843240 Process for stainless steel pickling and passivation without using nitric acid
11/1998
11/25/1998CN1200141A Metal finishing process and composition
11/24/1998US5840173 Process for treating the surface of material of high-grade steel
11/24/1998US5840126 Washing material in aqueous solution containing water repellent surfactant, applying sonication to remove contaminants, allowing monomolecular layer of surfactant to form on surface, rinsing with pure water, drying
11/19/1998WO1998051769A1 Process for removing tarnish from tarnished silverware
11/18/1998EP0878564A1 Corrosion inhibitor solution applicator
11/18/1998EP0877833A1 Aluminum deoxidizing inhibitor, composition and process
11/17/1998US5837061 Pickled steel product subsequent treatment process and device, in particular for pickled carbon steel hot strips
11/17/1998CA2098559C Reducing agent regeneration system
11/14/1998CA2237451A1 Corrosion inhibitor solution applicator
11/11/1998CN1198783A Composition for cleaning silver or copper
11/10/1998US5834411 General purpose aqueous cleaner
11/10/1998US5834129 Grained and anodized aluminum substrate for lithographic printing plates
11/03/1998US5830282 Continuous particle separation operation
10/1998
10/29/1998WO1998048080A1 Method of taking off iron oxides and hydroxides from steel product surfaces
10/28/1998EP0873394A1 Near tricritical point compositions
10/28/1998EP0873392A1 Gelled near tricritical point compositions
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