Improved methods and compositions for preventing corrosion...

Details Improved methods and compositions for preventing corrosion... Improved methods and compositions for preventing corrosion...

C - Chemistry, Metallurgy

23

C

C23C 22/34 (2006.01)

Patent

CA 2304240

A method for protecting a metal substrate from corrosion comprises the steps of providing a metal substrate and applying a treatment solution to the surface of the metal substrate, wherein the treatment solution comprises a partially hydrolyzed aminosilane and a fluorine-containing inorganic compound. Preferably the metal substrate is selected from the group consisting of aluminum, aluminum alloys and mixtures thereof.

La présente invention concerne un procédé permettant de protéger un substrat métallique de la corrosion, lequel procédé consiste à former un substrat métallique et à appliquer une solution de traitement sur la surface dudit substrat métallique, la solution de traitement comprenant un aminosilane partiellement hydrolysé et un composé inorganique contenant du fluor. De préférence, le substrat métallique est choisi dans le groupe composé de l'aluminium, d'alliages d'aluminium et de mélanges de ces derniers.

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