C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
C25D 11/24 (2006.01)
Patent
CA 2356190
The invention relates to a method for the subsequent treatment of anodized metal surfaces, whereby the metal surfaces are brought into contact with an aqueous solution for sealing or after sealing. Said solution has a pH value ranging from 1 to 14 and contains 0.01 to 10 g/l of one or more acids having fluoroalkyl groups with 2 to 22 carbon atoms and/or of fluorinated polymers or copolymers of acrylic acid and/or methacrylic acid or of each of the salts of these acids. The invention also relates to the use of acids having fluoroalkyl groups with 2 to 22 carbon atoms and/or of fluoroalkyl with 2 to 22 C atoms and/or of fluorinated polymers or copolymers of acrylic acid and/or methacrylic acid or of each of the salts of these acids in order to reduce the soil adherence to anodized metal surfaces.
Procédé de traitement postérieur de surfaces métalliques anodisées selon lequel les surfaces métalliques sont mises en contact avec une solution aqueuse à des fins d'étanchéification ou après l'étanchéification. Ladite solution possède une valeur pH de l'ordre de 1 à 14 et contient 0,01 à 10 g/l d'un ou plusieurs acides possédant des groupes fluoroalkyle ayant de 2 à 22 atomes de C et/ou de polymères ou copolymères fluorés d'acide acrylique et/ou d'acide méthacrylique ou de sels de ces acides. La présente invention concerne également l'utilisation d'acides contenant des groupes fluoroalkyle ayant 2 à 22 atomes de C et/ou de polymères ou copolymères fluorés d'acide acrylique et/ou méthacrylique ou de sels de ces acides pour diminuer l'adhérence des salissures sur des surfaces métalliques anodisées.
Hecht Gabriele
Koch Alina Monica
Kresse Josef
Henkel Kommanditgesellschaft Auf Aktien
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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