Corrosion-protection by electrochemical deposition of metal oxide layers on metal substrates
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Jun 20, 2006
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Dec 22, 2003
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Abstract
The present invention relates to a process for providing a metal substrate with corrosion-protection and corrosion-resistance, respectively, as well as to the products thus obtainable. Said process comprises coating said metal substrate with a thin layer of at least one metal oxide selected from the group consisting of TiO.sub.2, Bi.sub.2O.sub.3 and ZnO, preferably TiO.sub.2, by electrochemically depositing said metal oxide layer on at least one surface of said metal substrate. At the same time, said metal oxide layer may serve as a primer layer for subsequent coating treatment (e.g. coating with organic materials, such as for instance lacquers, varnishes, paints, organic polymers, adhesives, etc.).
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