EP 1658392 B1 20070314 - COLOUR CONVERSION LAYERS ON METAL SURFACES
Title (en)
COLOUR CONVERSION LAYERS ON METAL SURFACES
Title (de)
FARBIGE KONVERSIONSSCHICHTEN AUF METALLOBERFLÄCHEN
Title (fr)
COUCHES DE CONVERSION COLORES SUR DES SURFACES METALLIQUES
Publication
Application
Priority
- EP 2004009212 W 20040817
- DE 10339165 A 20030826
Abstract (en)
[origin: WO2005021834A1] The invention relates to an aqueous treatment solution for producing colour layers on zinc, aluminium, magnesium or the alloys thereof surfaces having a pH ranging from 1 to 6 and containing a) in total, 4-4000 mg/l hexafluorotitanate and/or hexafluorozirconate ions, b) in total, 10-400 mg/l molybdate and/or tungstate ions calculated in terms of Na-salt, in total, 1-2000 mg/l one or several chelating agents, d) 0.04-40 mg/l copolymer consisting of alkene phosphonic or phosphinic acid and one or several unsaturated carbonic acids. A treatment method for using the inventive solution and the thus treated metal parts are also disclosed.
IPC 8 full level
C23C 22/44 (2006.01); C09D 5/08 (2006.01)
CPC (source: EP US)
C23C 22/44 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005021834 A1 20050310; AT E356895 T1 20070415; DE 10339165 A1 20050324; DE 502004003236 D1 20070426; EP 1658392 A1 20060524; EP 1658392 B1 20070314; US 2006173099 A1 20060803; US 8293029 B2 20121023
DOCDB simple family (application)
EP 2004009212 W 20040817; AT 04764202 T 20040817; DE 10339165 A 20030826; DE 502004003236 T 20040817; EP 04764202 A 20040817; US 34366406 A 20060131