EP 3290543 A1 20180307 - METHOD OF TREATING METAL SURFACES WITH AN AQUEOUS COMPOSITION AND AQUEOUS COMPOSITION
Title (en)
METHOD OF TREATING METAL SURFACES WITH AN AQUEOUS COMPOSITION AND AQUEOUS COMPOSITION
Title (de)
VERFAHREN ZUR BEHANDLUNG VON METALLOBERFLÄCHEN MIT EINER WÄSSRIGEN ZUSAMMENSETZUNG SOWIE WÄSSRIGE ZUSAMMENSETZUNG
Title (fr)
PROCÉ?DÉ? DE TRAITEMENT DE SURFACES MÉ?TALLIQUES AU MOYEN D'UNE COMPOSITION AQUEUSE ET COMPOSITION AQUEUSE
Publication
Application
Priority
NL 2017398 A 20160831
Abstract (en)
The invention relates to a method of treating a metal surface of iron or iron alloy using an aqueous composition for imparting corrosion resistance and bonding properties, as well as to the aqueous composition. The aqueous composition consists of: wherein the molar ratio of Cr 3+ to : F - ranges from 0.25-0.4, and wherein the pH ranges from 2.0-4.4.
IPC 8 full level
C23C 22/34 (2006.01); C23C 22/83 (2006.01)
CPC (source: EP)
C23C 22/34 (2013.01); C23C 22/83 (2013.01); C23C 2222/10 (2013.01)
Citation (search report)
- [I] EP 0111897 A1 19840627 - COLLARDIN GMBH GERHARD [DE]
- [A] EP 0337411 A2 19891018 - UNILEVER NV [NL], et al
- [A] US 2005103229 A1 20050519 - TANAKA KAZUYA [JP], et al
- [A] US 2011100513 A1 20110505 - SCHLOSSER TED M [US], et al
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3290543 A1 20180307; EP 3290543 B1 20210127; ES 2865428 T3 20211015; NL 2017398 B1 20180308; PL 3290543 T3 20210920
DOCDB simple family (application)
EP 17188548 A 20170830; ES 17188548 T 20170830; NL 2017398 A 20160831; PL 17188548 T 20170830