C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 5/10 (2006.01)
Patent
CA 2099606
The invention concerns a zinc-containing corrosion-protecting undercoating agent for steel surfaces. The undercoating agent, which contains no organic solvents, consists of a mixture of dry, water-emulsifiable dispersion agent in powder form and water-reactive zinc in powder or flake form which are mixed with water immediately before treatment. The corrosion-protection properties of undercoating agents prepared in this way are as good as those of prior art single-component zinc-dust undercoating agents using only organic solvents.
La présente invention se rapporte à une couche de fond anticorrosion et zincifère pour surfaces d'acier, laquelle est exempte de solvants organiques et constituée d'un mélange de dispersant pulvérulent séché émulsionnable à l'eau et de poudre ou de limaille de zinc réactive avec de l'eau, qui est mélangé à de l'eau immédiatement avant le traitement. La couche de fond constituée de cette manière possède les mêmes bonnes propriétés anticorrosion que les couches de poudre de zinc connues à un composant, exclusivement dissoutes dans des solvants organiques.
Herzog Siglinde
Petrikat Axel
Wekenmann Guido
Kirby Eades Gale Baker
Sika Chemie Gmbh
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