EP 2449149 B1 20121219 - ANTI-CORROSIVE TREATMENT FOR SURFACES MADE OF ZINC AND ZINC ALLOYS
Title (en)
ANTI-CORROSIVE TREATMENT FOR SURFACES MADE OF ZINC AND ZINC ALLOYS
Title (de)
KORROSIONSSCHUTZBEHANDLUNG FÜR OBERFLÄCHEN AUS ZINK UND ZINKLEGIERUNGEN
Title (fr)
TRAITEMENT DE PROTECTION ANTICORROSION POUR DES SURFACES À BASE DE ZINC ET D'ALLIAGES DE ZINC
Publication
Application
Priority
- EP 2010059586 W 20100705
- EP 09164575 A 20090703
- EP 10728680 A 20100705
Abstract (en)
[origin: WO2011000969A1] The invention relates to a method for producing an anti-corrosive cover layer, a surface to be treated being brought into contact with an aqueous treatment solution containing chromium(III) ions and at least one phosphate compound and an organosol. The method improves the anti-corrosion protection of metal, in particular zinc-containing, surfaces and zinc-containing surfaces provided with conversion layers. This produces or improves the decorative and functional properties of the surfaces. In addition, it avoids the known problems arising with the use of chromium(VI)-containing compounds or multi-stage processes in which a chromium ion-containing passivation layer and a seal are applied consecutively.
IPC 8 full level
C23C 22/17 (2006.01); C23C 18/12 (2006.01); C23C 22/83 (2006.01)
CPC (source: EP US)
C23C 22/17 (2013.01 - EP US); C23C 22/83 (2013.01 - EP US); C23C 2222/10 (2013.01 - EP US)
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 SE SI SK SM TR
DOCDB simple family (publication)
WO 2011000969 A1 20110106; BR 112012000037 A2 20160315; CA 2765961 A1 20110106; CN 102471890 A 20120523; CN 102471890 B 20140618; EP 2281923 A1 20110209; EP 2449149 A1 20120509; EP 2449149 B1 20121219; ES 2401173 T3 20130417; JP 2012531527 A 20121210; JP 5627680 B2 20141119; KR 101565203 B1 20151102; KR 20120102566 A 20120918; US 2012091398 A1 20120419; US 8951363 B2 20150210
DOCDB simple family (application)
EP 2010059586 W 20100705; BR 112012000037 A 20100705; CA 2765961 A 20100705; CN 201080029167 A 20100705; EP 09164575 A 20090703; EP 10728680 A 20100705; ES 10728680 T 20100705; JP 2012518952 A 20100705; KR 20127000169 A 20100705; US 201013377681 A 20100705