EP 3137652 B1 20181010 - NON CHROMATE COLORED CONVERSION COATING FOR ALUMINUM
Title (en)
NON CHROMATE COLORED CONVERSION COATING FOR ALUMINUM
Title (de)
NICHTCHROMATIERTE GEFÄRBTE UMWANDLUNGSBESCHICHTUNG FÜR ALUMINIUM
Title (fr)
REVÊTEMENT DE CONVERSION COLORÉ SANS CHROMATE POUR L'ALUMINIUM
Publication
Application
Priority
- GB 201407690 A 20140501
- EP 2015059322 W 20150429
Abstract (en)
[origin: WO2015165956A1] The present invention relates to a process for the formation of colored conversion coatings on aluminum substrates using an acidic aqueous composition comprising chromium(lll), the elements Mo and/or W, a source of fluoride, and at least one oxidizing agent having a standard reduction potential in a range from +1,0 to +1,8 V (SHE). The invention further relates to an acidic aqueous composition that can be used in such a process and its use.
IPC 8 full level
C23C 22/44 (2006.01)
CPC (source: CN EP)
C23C 22/44 (2013.01 - CN EP); C23C 2222/10 (2013.01 - CN EP)
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 2015165956 A1 20151105; CN 106232872 A 20161214; CN 106232872 B 20190423; EP 3137652 A1 20170308; EP 3137652 B1 20181010; ES 2703560 T3 20190311; GB 201407690 D0 20140618; TW 201602410 A 20160116
DOCDB simple family (application)
EP 2015059322 W 20150429; CN 201580021874 A 20150429; EP 15722112 A 20150429; ES 15722112 T 20150429; GB 201407690 A 20140501; TW 104114064 A 20150501