EP 1036215 A2 20000920 - CHROMIUM-FREE CORROSION PROTECTION AGENT AND METHOD FOR PROVIDING CORROSION PROTECTION
Title (en)
CHROMIUM-FREE CORROSION PROTECTION AGENT AND METHOD FOR PROVIDING CORROSION PROTECTION
Title (de)
CHROMFREIES KORROSIONSSCHUTZMITTEL UND KORROSIONSSCHUTZVERFAHREN
Title (fr)
AGENT ANTICORROSION EXEMPT DE CHROME ET PROCEDE DE PROTECTION CONTRE LA CORROSION
Publication
Application
Priority
- DE 19754108 A 19971205
- EP 9807643 W 19981126
Abstract (en)
[origin: DE19754108A1] The invention relates to a chromium-free aqueous corrosion protection agent for treating galvanised or alloy galvanised steel surfaces or aluminium surfaces. Said agent contains the following essential constituents: a) 0.5 to 10 g/l hexafluoro-anions of titanium (IV) and/or zircon (IV), b) 5 to 15 g/l vanadium ions, c) 0.5 to 2 g/l transition metal ions, preferably Mn, Fe, Co, d) 30 to 150 g/l phosphoric acid and/or phosphonic acid. The inventive corrosion protection agent preferably also contains an organic film former, especially with a polyacrylate base; and a conductivity pigment. The agent is particularly suitable for treating metal strips in order to protect them against corrosion, with or without subsequent painting, and is preferably applied in such a way as to produce a dry layer coating of 0.5 to 5 g/m<2> on the surface.
IPC 1-7
IPC 8 full level
C23C 22/34 (2006.01); C23C 22/36 (2006.01); C23C 22/40 (2006.01); C23C 22/44 (2006.01)
CPC (source: EP KR)
C09D 7/61 (2017.12 - KR); C09D 7/65 (2017.12 - KR); C09D 191/06 (2013.01 - KR); C23C 22/42 (2013.01 - KR); C23C 22/44 (2013.01 - EP KR)
Citation (search report)
See references of WO 9929927A2
Designated contracting state (EPC)
AT BE DE ES FR GB IT SE
DOCDB simple family (publication)
DE 19754108 A1 19990610; AR 010965 A1 20000712; AU 2050299 A 19990628; CA 2312807 A1 19990617; EP 1036215 A2 20000920; JP 2001526324 A 20011218; KR 20010024643 A 20010326; WO 9929927 A2 19990617; WO 9929927 A3 19990812
DOCDB simple family (application)
DE 19754108 A 19971205; AR P980106158 A 19981204; AU 2050299 A 19981126; CA 2312807 A 19981126; EP 9807643 W 19981126; EP 98965188 A 19981126; JP 2000524493 A 19981126; KR 20007005290 A 20000515