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)
03/1993
03/17/1993EP0531520A1 Process for forming barium metaplumbate
03/16/1993US5194138 Treatment with cerium nitrate and cerium chloride, positively charging in presence of molybdate anions
03/16/1993CA1314511C Electrolytic post-treatment of phosphated surface
03/16/1993CA1314462C Method of refining magnetic domains of electrical steels using phosphorus
03/11/1993DE4129529A1 Kombiniertes verfahren zur reinigung und zum rostschutz von verschmutzten metalloberflaechen auf basis eisen bzw. stahl Combined procedures for cleaning and rust protection of metal surfaces soiled on the basis of iron or steel
03/09/1993US5192374 Boehmite with cerium oxide or cerium hydroxide
03/05/1993WO1993005199A1 Aluminum alloy sheet for automotive body and production thereof
03/05/1993CA2095525A1 Aluminum alloy sheets for auto body panels and method of manufacturing the same
03/03/1993EP0529373A1 Disulfides, process for their preparation and their use
03/03/1993CN1069528A Normal atomspheric temp. phosphorization liquid for removing oil and rust without offscum
03/02/1993CA1313996C Method and composition for refinement of metal surfaces
03/02/1993CA1313994C Method for drawing iron and steel wire rod
02/1993
02/24/1993CN1069295A Metal blackening technology under room temp.
02/24/1993CA2073524A1 Disulfides, their preparation and their use
02/23/1993US5189720 Method for manufacturing steel wire material for reinforcing optical fiber
02/18/1993WO1993003198A1 Zinc phosphate conversion coating composition and process
02/18/1993WO1992017552A3 Process for forming barium metaplumbate
02/17/1993CN1069077A Zinc phosphate conversion coating and process
02/09/1993US5185036 Using cyclodextrins as solubilizers, adjusting pH; coatings for metal surfaces
02/03/1993EP0525467A2 Grain oriented silicon steel sheet having excellent primary glass film properties
02/02/1993CA1313361C Multicoated steel sheet susceptible to cationic electrodeposition coating
01/1993
01/26/1993US5181409 Method of manufacturing a wall ironed can
01/26/1993CA1313109C Room temperature blackening solution
01/26/1993CA1313108C Zinc phosphate coating process
01/21/1993WO1993001329A1 Unidirectional silicon steel sheet having excellent film properties
01/20/1993EP0523288A1 Non-chromated oxide coating for aluminum substrates
01/20/1993EP0414852A4 Method for improving the adhesion of a plastic encapsulant to copper containing leadframes
01/12/1993US5178916 Surface treatment of transition metal coating with organic phosphonic acid derivative
01/12/1993US5178903 Coated metal fastener and method for making same
01/12/1993US5178690 Treatment of zinc surface with chromate coating
01/11/1993CA2073631A1 Grain oriented silicon steel sheet having excellent primary film properties
01/07/1993WO1993000458A1 Composition and process for forming non-cracking chromate conversion coatings
01/07/1993WO1993000457A1 Surface treatment method for aluminum___________________________
01/07/1993CA2111850A1 Surface treatment method for aluminum
01/05/1993US5176761 Process for chemically treating aluminum work pieces
12/1992
12/30/1992EP0520721A2 Passivation method and passivated implant
12/30/1992EP0520649A2 Process for making corrosion-resistant coatings
12/30/1992EP0520562A1 Soluble tellurium compositions
12/30/1992EP0520384A2 Process of suppressing corrosion of a heat exchanging apparatus
12/30/1992EP0520031A1 Process and composition for heating aluminium.
12/29/1992US5174833 Production of grain-oriented silicon steel sheets having an insulating film formed thereon
12/29/1992CA2045919A1 Method for forming artificially and rapidly patina on copper, products thereof and solutions therefor
12/28/1992CA2071710A1 Soluble tellurium compositions
12/25/1992CA2072189A1 Passivation method
12/23/1992CN1067274A White passivating liquor containing trivalent chromium for zinc plating
12/16/1992EP0312599B1 Highly corrosion-resistant, surface-treated steel sheet
12/10/1992WO1992021786A1 Process for forming passive film on stainless steel, and stainless steel and gas- and liquid-contacting part
12/10/1992WO1992021449A1 Process for protecting metallic and wood surfaces using silicate compounds
12/10/1992CA2109629A1 Process of protecting surfaces using silicate compounds
12/09/1992EP0517586A1 Process for forming an anticorrosive coating on the basis of a copolymer on a metal surface
12/09/1992EP0517400A1 Process for the manufacture of printed circuits using electrophoretically deposited organic resists
12/09/1992EP0516700A1 Conversion treatment method and composition for aluminum and aluminum alloys.
12/09/1992CN1066894A Low temp. rapid phosphorization agent
12/09/1992CN1066893A Multi-funcitonal rust-proof agent
12/03/1992DE4117624A1 Passivation of component surfaces used in contact with heavy water - comprises treating with soln. of lithium peroxide in deuterium oxide
12/02/1992CN1066689A Zinc-calcium phosphide solution used for no washing before painting under normal temp.
12/01/1992US5167730 Method for applying tellurium-containing coatings to metallic surfaces using cyclodextrins/tellurium compositions
11/1992
11/24/1992US5165830 Mass transit vehicle
11/19/1992EP0514329A2 Improved rubber-metal bushing and method of producing same
11/19/1992EP0514183A1 Method for treating metal surface with zinc phosphate
11/19/1992EP0513598A1 Process for chemical treatment with phosphate
11/19/1992CA2068690A1 Method for treating metal surface with zinc phosphate
11/17/1992US5164235 Treating copper with chromium and zinc ions
11/17/1992CA2068823A1 Rubber-metal bushing and method of producing same
11/14/1992WO1992020477A1 Polymer laminated drag cast can stock and method
11/14/1992CA2103075A1 Polymer laminated drag cast can stock and method
11/03/1992US5160551 Activator for use in phosphating processes
11/03/1992US5160381 Method for forming artificially and rapidly patina on copper, products thereof and solutions therefor
11/03/1992CA1309644C Metal surface refinement using dense alumina-based media
10/1992
10/28/1992EP0510105A1 Surface-treatment method for tin-plated drawn and ironed cans.
10/27/1992US5158629 Reducing surface roughness of metallic objects and burnishing liquid used
10/27/1992US5158623 Method for surface refinement of titanium and nickel
10/27/1992US5158622 Method and composition for treatment of aluminum
10/27/1992CA1309315C Compositions and process for metal treatment
10/21/1992EP0509702A2 Polyphenol derivatives and their use as coating agent
10/21/1992EP0509695A2 Tetraoximino derivatives of bisphenol and their use as coating agents
10/21/1992EP0274543B1 Composition for treating metal surface and treating process
10/19/1992CA2066308A1 Compound, preparation and use
10/19/1992CA2066306A1 Compound, composition and use
10/16/1992WO1992018661A1 Metal treatment
10/16/1992CA2106953A1 Metal treatment
10/15/1992WO1992017552A2 Process for forming barium metaplumbate
10/14/1992EP0508428A1 Organic composite coated steel strip having improved corrosion resistance and spot weldability
10/14/1992EP0508306A1 Process for corrosion preventing coating of steel work pieces
10/14/1992EP0508207A1 Weldable black steel sheet
10/14/1992EP0508000A1 Method for coating metal
10/13/1992CA1308629C Process of producing phosphate coatings on metals
10/11/1992CA2065694A1 Process for coating a workpiece of steel with an anti-corrosive agent
10/07/1992EP0507194A1 Weldable colored steel sheet
10/06/1992US5152849 Phosphating process
10/06/1992CA1308339C Method for improving magnesium oxide steel coatings
10/06/1992CA1308338C Process of producing phosphate coatings on metal surfaces
09/1992
09/30/1992EP0505606A1 Process for pickling and passivating stainless steel without using nitric acid
09/30/1992CA2063940A1 Weldable colored steel sheet
09/30/1992CA2063907A1 Weldable black steel sheet
09/29/1992CA1308004C Process and composition for treatment of titanium alloys
09/29/1992CA1308003C Compositions and process for metal treatment
09/24/1992DE4109434A1 Regeneration of waste chromate solns. by pptn. and electrolysis - to recover chromic acid and barium-contg. precipitant
09/22/1992US5149382 Method of pretreating metal by means of composition containing S-triazine compound
09/15/1992US5147730 Steel plate with organic coating having improved corrosion resistance