EP 2742169 A1 20140618 - METHOD FOR PASSIVATING METAL SURFACES USING CARBOXYLATE-CONTAINING COPOLYMERS
Title (en)
METHOD FOR PASSIVATING METAL SURFACES USING CARBOXYLATE-CONTAINING COPOLYMERS
Title (de)
VERFAHREN ZUM PASSIVIEREN VON METALLISCHEN OBERFLÄCHEN UNTER VERWENDUNG VON CARBOXYLATHALTIGEN COPOLYMEREN
Title (fr)
PROCÉDÉ POUR PASSIVER DES SURFACES MÉTALLIQUES EN UTILISANT DES COPOLYMÈRES CONTENANT DU CARBOXYLATE
Publication
Application
Priority
- EP 11177092 A 20110810
- EP 2012065452 W 20120807
- EP 12743191 A 20120807
Abstract (en)
[origin: WO2013020980A1] The invention relates to a method for passivating metal surfaces, in particular strip metals, by treating the surface in alternating layers with a) an acidic aqueous preparation containing at least one water-soluble acid group-containing copolymer (A) and b) an aqueous preparation containing at least one species (B) which is soluble and/or dispersible in water and which has cationic and/or procationic groups, preferably a cationic and/or procationic polymer (B1), said preparation a) always being the first and the last layer.
IPC 8 full level
C23C 22/53 (2006.01); B05D 7/14 (2006.01); B05D 7/16 (2006.01); C09D 5/08 (2006.01); C09D 5/12 (2006.01); C23C 22/08 (2006.01); C23C 22/56 (2006.01); C23C 22/74 (2006.01); C23C 22/78 (2006.01); C23C 22/83 (2006.01)
CPC (source: EP)
C09D 5/08 (2013.01); C09D 5/12 (2013.01); C23C 22/08 (2013.01); C23C 22/53 (2013.01); C23C 22/56 (2013.01); C23C 22/74 (2013.01); C23C 22/78 (2013.01); C23C 22/83 (2013.01); B05D 1/18 (2013.01); B05D 3/0272 (2013.01); B05D 7/16 (2013.01); B05D 7/56 (2013.01)
Citation (search report)
See references of WO 2013020980A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013020980 A1 20130214; AU 2012293631 A1 20140227; BR 112014003156 A2 20170314; CN 103781939 A 20140507; EP 2742169 A1 20140618; JP 2014522915 A 20140908; KR 20140054039 A 20140508; RU 2014108706 A 20150920
DOCDB simple family (application)
EP 2012065452 W 20120807; AU 2012293631 A 20120807; BR 112014003156 A 20120807; CN 201280043836 A 20120807; EP 12743191 A 20120807; JP 2014524365 A 20120807; KR 20147003405 A 20120807; RU 2014108706 A 20120807