Method for producing a green protective coating on copper

Details Method for producing a green protective coating on copper Method for producing a green protective coating on copper

1992-06-05

1994-12-27

Dean, Richard O.

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

148270, 148272, 148277, 148282, 148284, C23C 2248

Patent

active

053761901

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.

REFERENCES:
patent: 1951304 (1934-03-01), Freeman, Jr. et al.
patent: 3497401 (1970-02-01), Hanson et al.

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