EP 0575244 A1 19931222 - Process for treating aluminium-based substrates before their anodisation, bath used in this process and concentrate for preparing this bath.
Title (en)
Process for treating aluminium-based substrates before their anodisation, bath used in this process and concentrate for preparing this bath.
Title (de)
Verfahren zur Behandlung eines Substrats auf Aluminiumbasis für die Eloxierung, das in diesem Verfahren verwendete Bad sowie ein Konzentrat zur Herstellung des Bades.
Title (fr)
Procédé de traitement de substrats à base d'aluminium en vue de leur anodisation, bain mis en oeuvre dans ce procédé et concentré pour préparer le bain.
Publication
Application
Priority
FR 9207352 A 19920617
Abstract (en)
Process for treating aluminium-based substrates with a view to their anodic oxidation, characterised in that it contains a surface treatment or satining (enamelling, surfacing, glazing) stage using an acid bath comprising at least one fluorinated derivative of titanium and/or of zirconium and/or of silicon and at least one acid of the group comprising nitric, sulphuric and phosphoric acids.
IPC 1-7
IPC 8 full level
C25D 11/08 (2006.01); C25D 11/16 (2006.01)
CPC (source: EP US)
C25D 11/16 (2013.01 - EP US)
Citation (search report)
[A] US 4502925 A 19850305 - WALLS JOHN E [US]
Designated contracting state (EPC)
AT BE DE ES GB IT NL PT SE
DOCDB simple family (publication)
EP 0575244 A1 19931222; EP 0575244 B1 19990506; AT E179766 T1 19990515; CA 2098689 A1 19931218; CA 2098690 A1 19931218; DE 69324729 D1 19990610; DE 69324729 T2 19991202; ES 2130236 T3 19990701; FR 2692599 A1 19931224; FR 2692599 B1 19940916; JP H06184791 A 19940705; US 5460694 A 19951024
DOCDB simple family (application)
EP 93401533 A 19930615; AT 93401533 T 19930615; CA 2098689 A 19930617; CA 2098690 A 19930617; DE 69324729 T 19930615; ES 93401533 T 19930615; FR 9207352 A 19920617; JP 14652393 A 19930617; US 7761193 A 19930617