EP 2265740 A1 20101229 - ALUMINUM TREATMENT COMPOSITION
Title (en)
ALUMINUM TREATMENT COMPOSITION
Title (de)
ALUMINIUMBEHANDLUNGSZUSAMMENSETZUNG
Title (fr)
COMPOSITION DE TRAITEMENT D'ALUMINIUM
Publication
Application
Priority
- US 2009034457 W 20090219
- US 5553908 A 20080326
Abstract (en)
[origin: WO2009120431A1] An aqueous conversion coating composition for treating metal substrates such as aluminum, aluminum alloys, zinc, zinc alloys, magnesium, magnesium alloys and steel to provide a conversion coating thereon. The conversion coating composition comprises a) a source of aluminum ions; b) a fluoro compound; c) at least one pH adjuster; d) a source of Group VIB metal ions selected from the group consisting of tungstate ions and trivalent chromium ions; and e) optionally, a preservative. The conversion coating composition provides a corrosion resistant coating on the metal surface and improves the adhesion of subsequently applied layers.
IPC 8 full level
CPC (source: EP US)
C09D 1/00 (2013.01 - EP US); C09D 5/103 (2013.01 - EP US); C23C 22/34 (2013.01 - EP US); C23C 22/44 (2013.01 - EP US); C23C 22/83 (2013.01 - EP US); C23C 2222/10 (2013.01 - EP US)
Designated contracting state (EPC)
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 TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009120431 A1 20091001; CN 102144042 A 20110803; CN 102144042 B 20131030; EP 2265740 A1 20101229; EP 2265740 A4 20161116; JP 2011515587 A 20110519; JP 5214019 B2 20130619; TW 200942642 A 20091016; TW I388693 B 20130311; US 2009242081 A1 20091001
DOCDB simple family (application)
US 2009034457 W 20090219; CN 200980109254 A 20090219; EP 09725820 A 20090219; JP 2011501862 A 20090219; TW 98107298 A 20090306; US 5553908 A 20080326