Method for the passivation of metal surfaces with polymers...

Details Method for the passivation of metal surfaces with polymers... Method for the passivation of metal surfaces with polymers...

C - Chemistry, Metallurgy

23

C

C23C 22/12 (2006.01) B05D 7/14 (2006.01) C09D 5/08 (2006.01) C23C 22/53 (2006.01)

Patent

CA 2572333

The invention relates to a method for passivation of metal surfaces by treatment of the surface with an acid aqueous composition, containing at least one water-soluble acid-group comprising polymer and Zn, Ca, Mg, or Al ions, said method being particularly a continuous method for the passivation of strip metals.

L'invention concerne un procédé permettant de passiver des surfaces métalliques par traitement d'une surface avec une préparation aqueuse acide, qui contient au moins un polymère soluble dans l'eau, à base de groupes acides, ainsi que des ions Zn, Ca, Mg ou La. Ledit procédé porte notamment sur un processus continu de passivation de feuillards.

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