C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/34 (2006.01) C23C 22/80 (2006.01) C23C 22/83 (2006.01)
Patent
CA 2245521
A rinse solution for the treatment of conversion-coated metal substrates for improving the adhesion and corrosion resistance of siccative coatings, comprising an aqueous solution of a Group IVA metal ion, namely, zirconium, titanium, hafnium, and mixtures thereof, and a phenol polymer, with the pH of the total solution about 3.5 to 5.1. A method for treating such materials by applying the rinse solution to the substrate.
Cette invention concerne une solution de rinçage de substrats métalliques possédant une couche de conversion, laquelle solution permet d'améliorer l'adhésion et la résistance à la corrosion de couches siccatives. Cette solution consiste en une solution aqueuse d'ions de métaux du groupe IV A, plus précisément de zirconium, de titane, de hafnium ou de mélanges de ces derniers. Cette solution comprend également un polymère phénolique, le pH de la solution totale variant entre environ 3,5 et 5,1. Cette invention concerne également un procédé de traitement de tels matériaux, lequel procédé consiste à appliquer la solution de rinçage sur le substrat.
Borden Ladner Gervais Llp
Brent International Plc
Chemetall Plc
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