EP 0732425 B1 20030618 - Passivation treatment of tinplate
Title (en)
Passivation treatment of tinplate
Title (de)
Passivierung von verzinnter Blechen
Title (fr)
Passivation de tôles étamées
Publication
Application
Priority
GB 9505041 A 19950313
Abstract (en)
[origin: EP0732425A1] A chromium free passivation film for tinplate. The film is produced electrolytically by immersing tinplate in an aqueous solution of a soluble compound selected from potassium titanium oxalate, titanium sulphate and zirconium sulphate. The film so produced has sulphide stain resistance comparable to that produced by conventional chromium bearing passivating solutions. <IMAGE>
IPC 1-7
IPC 8 full level
C23C 22/68 (2006.01); C25D 5/48 (2006.01); C25D 9/08 (2006.01)
CPC (source: EP)
C23C 22/68 (2013.01); C25D 5/48 (2013.01); C25D 9/08 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0732425 A1 19960918; EP 0732425 B1 20030618; AT E243269 T1 20030715; DE 69628689 D1 20030724; DE 69628689 T2 20040429; GB 2298870 A 19960918; GB 2298870 B 19980930; GB 9505041 D0 19950503
DOCDB simple family (application)
EP 96301491 A 19960305; AT 96301491 T 19960305; DE 69628689 T 19960305; GB 9505041 A 19950313