Halogen-free trivalent chromium conversion coating

Stock material or miscellaneous articles – Composite – Of metal

Reexamination Certificate

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Reexamination Certificate



Trivalent chromium conversion coatings are provided on a metal substrate wherein the trivalent chromium conversion coating has a halogen content of 1 atom % maximum.

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N.N. Voevodin et al., “Potentiodynamic evaluation of sol-gel coatings with inorganic inhibitors”, Surface and Coatings Technology, Jan. 1, 2001, pp. 24-28, vol. 140, Amsterdam, NL.
European Search Report for EP 07255028.8, dated Jul. 7, 2008.


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