EP 2055810 A2 20090506 - Procedure for anodising aluminium or aluminium alloys
Title (en)
Procedure for anodising aluminium or aluminium alloys
Title (de)
Verfahren zur Anodisierung von Aluminium oder Aluminiumlegierungen
Title (fr)
Procédure pour l'anodisation d'aluminium et alliages d'aluminium
Publication
Application
Priority
ES 200702842 A 20071029
Abstract (en)
This invention refers to a procedure for anodising aluminium or aluminium alloys in which an aluminium or an aluminium alloy part is submerged an in an aqueous solution at a temperature between 0°C and 140°C, preferably between 0°C and 130°C, in which said solution includes: - sulphuric acid, - tartaric acid, and - at least one inorganic salt of an element selected between at least one transition metal, a lanthanide element, an actinide, and combinations of them, and applying a controlled potential difference, obtaining layers of aluminium oxide with properties as good as or even better than those obtained through anodising in traditional chromic acid solutions.
IPC 8 full level
C25D 11/06 (2006.01)
CPC (source: EP ES US)
C25D 11/06 (2013.01 - EP ES US)
Citation (examination)
- GB 459263 A 19370105 - SCHERING KAHLBAUM AG
- US 2002157961 A1 20021031 - DATTILO ALESSANDRO [IT], et al
- V MOUTARLIER ET AL: "Electrochemical characterisation of anodic oxidation lms formed in presence of corrosion inhibitors", 12 November 2001 (2001-11-12), XP055286809
Designated contracting state (EPC)
DE FR GB IT
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2055810 A2 20090506; EP 2055810 A3 20130123; BR PI0800622 A2 20090630; CA 2624579 A1 20090429; CN 101423965 A 20090506; EA 015400 B1 20110830; EA 200800582 A1 20090630; ES 2324850 A1 20090817; ES 2324850 B1 20100607; US 2009107848 A1 20090430
DOCDB simple family (application)
EP 08380076 A 20080307; BR PI0800622 A 20080314; CA 2624579 A 20080307; CN 200810096306 A 20080317; EA 200800582 A 20080313; ES 200702842 A 20071029; US 7363208 A 20080307