Method for producing a green protective coating on copper
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United States of America Patent
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Dec 27, 1994
Grant Date -
N/A
app pub date -
Jun 5, 1992
filing date -
Dec 24, 1990
priority date (Note) -
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Abstract
A method for forming a protective layer on a copper surface is set forth. The surface of degreased strips or sheets of copper are roughened by mechanical treatment in a controlled manner. The roughened surfaces of the strips or sheets are then chemically treated to bring about a green patination. After the chemical treatment, the strips or sheets are stored in a climate-controlled space.
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