EP 1017505 A1 20000712 - WATER-BASED LIQUID TREATMENT FOR ALUMINUM AND ITS ALLOYS
Title (en)
WATER-BASED LIQUID TREATMENT FOR ALUMINUM AND ITS ALLOYS
Title (de)
AUF WASSER BASIERENDE FLÜSSIGKEITSBEHANDLUNG FÜR ALUMINIUM UND DESSEN LEGIERUNGEN
Title (fr)
TRAITEMENT LIQUIDE A BASE AQUEUSE POUR L'ALUMINIUM ET SES ALLIAGES
Publication
Application
Priority
- JP 13185997 A 19970522
- US 9809902 W 19980521
Abstract (en)
[origin: WO9852699A1] A chromium-free water-based surface treatment liquid which contains from 0.01 to 50 g/l of a total of dissolved manganic acid, permanganic acid, and salt(s) thereof and from 0.01 to 20 g/l of a total of dissolved titanium compounds and has a pH of from 1.0 to 6.0 reacts rapidly with aluminum and aluminum alloy surfaces to deposit thereon a protective coating that does not contain hexavalent chromium and has excellent corrosion resistance and paint film holding properties.
IPC 1-7
IPC 8 full level
C23C 22/34 (2006.01); C23C 22/56 (2006.01)
CPC (source: EP)
C23C 22/34 (2013.01); C23C 22/56 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT NL SE
DOCDB simple family (publication)
WO 9852699 A1 19981126; AU 744557 B2 20020228; AU 7573498 A 19981211; CA 2291140 A1 19981126; EP 1017505 A1 20000712; EP 1017505 A4 20000816; ZA 984335 B 19981130
DOCDB simple family (application)
US 9809902 W 19980521; AU 7573498 A 19980521; CA 2291140 A 19980521; EP 98923440 A 19980521; ZA 984335 A 19980521