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)
03/1996
03/28/1996CA2199142A1 Aqueous lubricant and surface conditioner for formed metal surfaces
03/27/1996CN1119221A Hydrophilic treatment process for aluminium rib type heat-exchanger
03/27/1996CN1119220A Process for preparing metal far-infrared radiation material
03/26/1996US5501350 Forming photoresist layer on a copper layer black-oxide treated by alkaline oxidizer and finely surface roughened by acid treatment
03/21/1996WO1996008588A1 Liquid rinse conditioner for phosphate conversion coatings
03/20/1996EP0701489A1 Process for protecting a surface using silicate compounds
03/19/1996US5500288 Aluminum surface having chemical conversion coating and method of forming the coating
03/19/1996US5500053 Composition for and method of monitoring dried-in-place non-chrome polyacrylamide based treatments for metals
03/14/1996WO1996007772A1 Composition and process for treating metals
03/14/1996DE4435774C1 Sepn. of zinc from solns. and slurries contg. chromium, esp. waste water or galvanic slurry
03/14/1996DE4432352A1 Transporting un-painted car bodies through treatment baths
03/14/1996CA2198381A1 Composition and process for treating metals
03/13/1996EP0701007A1 Process for insulating magnetic sheet
03/13/1996EP0700452A1 Chromium-free conversion-coating treatment of aluminium
03/13/1996CN1118638A Improved process for manufacturing alternator pole piece
03/12/1996US5498759 Chromate coating
03/12/1996US5498300 Composition and process for treating tinplate
03/07/1996WO1996006896A2 Organophosphonic or organophosphinic acid coating for aluminum alloy vehicle assemblies
03/06/1996EP0700238A1 Copper foil for use in making printed wiring board
03/06/1996EP0700059A1 Electromagnetic steel sheet having an electrically insulating coating with superior weldability
03/06/1996EP0364596B1 METHODS FOR PRODUCING Zn-Ni ALLOY-PLATED STEEL SHEET HAVING EXCELLENT PRESS MOLDABILITY
03/06/1996CN1118188A Piping element for burried conduit, corresponding burried conduit, and method for protecting said piping element
03/05/1996US5496652 Zinc-plated steel plate having resin coating film
02/1996
02/28/1996EP0698675A1 Preparing metal surfaces for enamelling
02/28/1996CN1031147C Steel articles having protective duplex coatings and method of production
02/27/1996US5494594 Metal surface treatments
02/27/1996US5494504 Liquid rinse conditioner for phosphate conversion coatings
02/22/1996WO1996005335A1 Improved non-chromated oxide coating for aluminum substrates
02/21/1996CN1117130A Aluminum-containing metal composite material and process for producing same
02/21/1996CN1117090A Agent for surface processing of copper and copper alloy
02/20/1996US5492766 Corrosion resistant coated articles and process for making same
02/20/1996US5492595 Reducing oxide whiskers on surface with acidic reducing solution containing thiosulfate, rinsing; good adhesion to resin
02/14/1996EP0649458A4 Aqueous lubrication and surface conditioning for formed metal surfaces.
02/14/1996CN1116662A Piston of internal combustion engine and making of same
02/14/1996CN1116565A Electromagnetic steel sheet having an electrically insulating coating with superior weldability
02/09/1996EP0707664A4 Rapidly dissolving and storage stable titanium phosphate containing activating composition
02/08/1996WO1996003534A1 Process for treating the surface of aluminum sheet for cap manufacturing
02/07/1996EP0695817A1 Acid aqueous phosphatic solution and process using same for phosphating metal surfaces
02/07/1996CN1116357A Electricians' steel plate with corrosion resisting insolating layer and iron core used in motor or transformer
02/06/1996CA2155484A1 Acid aqueous phosphatic solution and process using same for phosphating metal surfaces
02/01/1996WO1996002331A1 Surface treated, corrosion protected, metal object, and method for treatment of the object for protection against corrosion
01/1996
01/31/1996EP0694593A1 Anticorrosive composition free from sexvalent chromium
01/31/1996CN1115794A Iron and steel derusting and phosphorating liquid
01/30/1996US5487949 Non-chromated oxide coating for aluminum substrates
01/25/1996WO1996001914A1 Process for forming a phosphate conversion coating
01/25/1996CA2194910A1 Process for forming a phosphate conversion coating
01/24/1996EP0693139A1 Composition and process for substitutionally plating zinc or zinc-alloy surfaces
01/24/1996CN1115327A Polymeric compound composition and process for surface-treating a metal material
01/24/1996CN1030778C Galvanized workpiece surface chemical colorant
01/23/1996US5486316 Aqueous lubricant and surface conditioner for formed metal surfaces
01/17/1996EP0665772A4 Reducing or avoiding pinhole formation in autodeposition on zinciferous surfaces.
01/16/1996US5484541 Process and product for lubricating metal prior to cold forming
01/09/1996US5482787 Organic composite coated steel strip having improved corrosion resistance and spot weldability
01/09/1996US5482746 Corrosion resistance, bonding strength
01/09/1996US5482731 Method for bonding a calcium phosphate coating to stainless steels and cobalt base alloys for bioactive fixation of artificial implants
01/03/1996EP0689620A1 Non-chrome passivation for metal substrates
01/03/1996CN1114367A Improvements relating to potable water supply components
12/1995
12/27/1995EP0689249A2 Electrode layer for electronic component and method of fabrication
12/27/1995EP0610421B1 Phosphate conversion coating composition and process
12/27/1995CN1113966A Ultra-low temperature multifunction phosphide liquid product
12/26/1995US5478655 Metal pretreated with an inorganic/organic composite coating with enhanced paint adhesion
12/26/1995US5478529 Introducing simple fluoride solutions into mixing vessel to convert aluminum salt of complex hydrofluoric acid to a complex hydrofluoric acid; measuring remaining hydrogen fluoride with a metal silicon electrode meter
12/26/1995US5478414 Reflective aluminum strip, protected with fluoropolymer coating and a laminate of the strip with a thermoplastic polymer
12/26/1995US5478413 Environmentally friendly coating compositions
12/26/1995US5478410 Process for producing grain-oriented electrical steel sheet having low watt loss
12/21/1995WO1995034693A1 Conversion coating and process and solution for its formation
12/21/1995DE4421501A1 Aq. solns. for phosphating metals
12/20/1995EP0687394A1 Improved process for manufacturing alternator pole piece
12/19/1995US5476601 Aqueous lubricant and surface conditioner for formed metal surfaces
12/19/1995US5476552 Grit blasting, applying an acid wash primer consisting of alcohol, zinc chromate and phosphoric acid
12/14/1995WO1995033869A1 Composition and method for treating the surface of aluminiferous metals
12/13/1995EP0686246A1 Piping element for burried conduit, corresponding burried conduit, and method for protecting said piping element
12/13/1995EP0520031B1 Process and composition for treating aluminium
12/07/1995WO1995033083A1 Process for coating phosphatized metal substrates
12/07/1995CA2190945A1 Process for coating phosphatized metal substrates
12/06/1995EP0685562A1 Process for manufacturing thin steel sheet for the production of deepdrawn and ironed cans
12/06/1995CN1112964A Salt bath composition based on alkali nitrates for oxidizing ferrous metal to improve its corrosion resistance
12/06/1995CN1112950A Chemical reducing solution for copper oxide
12/05/1995US5472734 Apatite coating on aluminum sheet and method of manufacture
12/05/1995US5472524 Applying a cobalt-III mexacoordinated complex; oxidation; corrosion resistance; paint adhesion
12/05/1995US5472523 Method and composition for treatment of phosphate coated metal surfaces
12/05/1995US5472522 Treating steel surface with chromate solution, then phosphate solution before galvanizing it
12/05/1995US5472515 Tank with rollers for immersion of metal web; countercurrent fluid flow
11/1995
11/30/1995WO1995032319A1 Iron phosphatisation using substituted monocarboxilic acids
11/30/1995DE19515996A1 Improving surface properties of nozzle or end piece of gas welding device
11/30/1995CA2190991A1 Iron phosphatisation using substituted monocarboxilic acids
11/29/1995EP0684322A2 Ceramic coating-forming agent and process for the production thereof
11/29/1995EP0585365A4 Process for protecting metallic and wood surfaces using silicate compounds
11/28/1995US5470613 Composition and method of forming a black no-rinse conversion coating on metal surfaces
11/28/1995US5469875 Fluid level control system for a continuous chemical treatment device
11/23/1995WO1995031588A1 Production of phosphate-containing activating agents for phosphatization with the aid of microwaves
11/23/1995WO1995031587A1 A method for pre-treating aluminum materials prior to painting
11/23/1995DE4417965A1 Eisenphosphatierung unter Verwendung von substituierten Monocarbonsäuren Iron phosphating using substituted monocarboxylic acids
11/23/1995DE4417500A1 Method of producing a protective layer of oxide on a metal surface
11/23/1995DE19518326A1 Forming chemical conversion film on magnesium-based metallic material
11/23/1995CA2188420A1 A method for pre-treating aluminum materials prior to painting
11/22/1995EP0683245A1 Method for treating a potable water supply component made of a copper-based alloy
11/22/1995CN1112166A Polymeric compound composition and process for surface-treating an aluminum-containing metal material
11/21/1995US5468307 Non-chromated oxide coating for aluminum substrates
11/18/1995CA2149499A1 Potable water supply components