C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/07 (2006.01) B32B 15/00 (2006.01)
Patent
CA 2686179
Phosphate conversion coatings having very light color and excellent surface coverage with fine crystal size are obtained using liquid compositions containing phosphate, zinc cations, relatively high concentrations of Co and Mn, and low ore no Ni.
La présente invention concerne des phosphatations obtenues grâce à l'utilisation de compositions liquides contenant du phosphate, des cations zinc, des concentrations en Co et en Mn relativement élevées, et des concentrations en Ni faibles ou nulles. Ces phosphatations donnent une surface de couleur très claire et extrêmement bien recouverte en utilisant des cristaux de petite taille.
Henkel Ag & Co. Kgaa
Kirby Eades Gale Baker
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