EP 2691555 A2 20140205 - CORROSION RESISTANCE PASSIVATION FORMULATION AND PROCESS OF PREPARATION THEREOF
Title (en)
CORROSION RESISTANCE PASSIVATION FORMULATION AND PROCESS OF PREPARATION THEREOF
Title (de)
KORROSIONSBESTÄNDIGE PASSIVIERUNGSFORMULIERUNG UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
FORMULATION DE PASSIVATION ANTICORROSION ET SON PROCÉDÉ DE PRÉPARATION
Publication
Application
Priority
- IN 979MU2011 A 20110330
- IN 2012000204 W 20120328
Abstract (en)
[origin: WO2012143934A2] The present invention provides a passivation formulation and a process for forming trivalent chromium-based passivation film on zinc and zinc alloys. The passivation film incorporates nano-ceramic particles resulting in higher corrosion resistance as compared to a trivalent chromium passivation film without nano-sized ceramic particles. The corrosion resistance of the coating is further enhanced by a topcoat or a sealant
IPC 8 full level
C23C 22/34 (2006.01); C23C 22/50 (2006.01); C23C 22/53 (2006.01); C23C 22/56 (2006.01); C23C 22/83 (2006.01)
CPC (source: EP US)
C23C 22/34 (2013.01 - EP US); C23C 22/53 (2013.01 - EP US); C23C 22/56 (2013.01 - EP US); C23C 22/83 (2013.01 - EP US); C23C 28/34 (2013.01 - US); C23C 2222/10 (2013.01 - EP US)
Citation (search report)
See references of WO 2012143934A2
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 2012143934 A2 20121026; WO 2012143934 A3 20130117; EP 2691555 A2 20140205; US 2014017409 A1 20140116
DOCDB simple family (application)
IN 2012000204 W 20120328; EP 12756263 A 20120328; US 201214007878 A 20120328