EP 2358922 A1 20110824 - CONVERSION LAYERS FOR SURFACES CONTAINING ZINC
Title (en)
CONVERSION LAYERS FOR SURFACES CONTAINING ZINC
Title (de)
KONVERSIONSSCHICHTEN FÜR ZINKHALTIGE OBERFLÄCHEN
Title (fr)
COUCHES DE CONVERSION POUR SURFACES CONTENANT DU ZINC
Publication
Application
Priority
- EP 2009065646 W 20091123
- DE 102008044143 A 20081127
Abstract (en)
[origin: WO2010060883A1] The invention relates to a method for producing a corrosion-protecting overcoat layer, wherein a surface to be treated is brought into contact with an aqueous treatment solution comprising at least one chromium (III) ion source and at least one organic compound which acts as an oxidizer relative to zinc in weakly acidic or acidic solutions. The decorative and functional properties of the surfaces are retained or improved in the process. Also, the known problems involved with using chromium (VI) compounds are avoided.
IPC 8 full level
C23C 22/10 (2006.01)
CPC (source: EP KR US)
C23C 22/10 (2013.01 - EP US); C23C 22/17 (2013.01 - KR); C23F 11/00 (2013.01 - KR); C23C 2222/10 (2013.01 - EP US)
Citation (search report)
See references of WO 2010060883A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102008044143 A1 20100602; DE 102008044143 B4 20110113; CN 102227516 A 20111026; CN 102227516 B 20150722; EP 2358922 A1 20110824; EP 2358922 B1 20160127; ES 2565839 T3 20160407; JP 2012509994 A 20120426; JP 5562347 B2 20140730; KR 20110089304 A 20110805; PL 2358922 T3 20160729; US 2011217476 A1 20110908; WO 2010060883 A1 20100603
DOCDB simple family (application)
DE 102008044143 A 20081127; CN 200980147454 A 20091123; EP 09760833 A 20091123; EP 2009065646 W 20091123; ES 09760833 T 20091123; JP 2011537953 A 20091123; KR 20117011981 A 20091123; PL 09760833 T 20091123; US 200913125357 A 20091123