C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 33/02 (2006.01) B05D 5/00 (2006.01) C08L 35/00 (2006.01) C08L 43/02 (2006.01) C09D 5/08 (2006.01) C09D 133/02 (2006.01) C23C 22/00 (2006.01)
Patent
CA 2516954
The invention relates to a composition for treating surfaces, said composition containing a copolymer as component A comprising (meth)acrylic acid or the salts thereof, a monomer containing carboxylate and/or monomers comprising groups containing phosphoric acid and/or phosphonic acid or the salts thereof and optionally additional comonomers. The invention also relates to a passivation layer, which contains the component A and is applied to a metallic surface, to a method for forming said passivation layer and to the use of the inventive composition for the passivation of a metallic surface.
La présente invention concerne une composition utilisée pour le traitement de surfaces, qui contient, comme composant A, un copolymère constitué d'acide (meth)acrylique ou de ses sels, d'un monomère contenant du carboxylate et/ou des monomères comportant des groupes contenant de l'acide phosphorique et/ou phosphonique ou leurs sels, et, éventuellement, d'autres comonomères. L'invention concerne également une couche de passivation formée sur une surface métallique, laquelle contient le composant A ainsi qu'un procédé de réalisation de cette couche de passivation et l'utilisation de la composition présentée pour la passivation d'une surface métallique.
Dietsche Frank
Klippel Frank
Klueglein Matthias
Witteler Helmut
Basf Aktiengesellschaft
Robic
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