Method for producing an inorganic cover layer on the surface of a product and panel-shaped or strip-shaped product
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United States of America Patent
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Issued Date -
Jan 26, 2006
app pub date -
Jul 25, 2005
filing date -
Jul 24, 2004
priority date (Note) -
Abandoned
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Abstract
A method for generating an inorganic, colored cover layer on the surface of a product (strip, sheet metal, panel) having a base material made of copper or a copper alloy, using a reactive chemical that forms metal salts. While degreasing the surface of the base material of the product, a preoxidation layer is generated that is made of oxides of the base material. The preoxidation layer is then wet film-like by the reactive chemical that forms metal salts. For this, patterned application rolls may be used.
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