Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Forming nonelectrolytic coating before depositing...
Reexamination Certificate
2002-10-25
2008-11-11
Wong, Edna (Department: 1795)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Forming nonelectrolytic coating before depositing...
C205S187000
Reexamination Certificate
active
07449100
ABSTRACT:
An object of the present invention is to provide a method for forming a uniform and dense electroplating film with high adhesion strength on the surface of an article, yet irrespective of the surface material and the surface properties of the article. A means for a solution of the problem comprises: forming on the surface of the article, a resin coating made of a resin containing dispersed therein a powder of a first metal; then forming a second-metal substituted plating film on the surface of the resin coating by immersing the resin-coated article in a solution containing ions of a second metal having an ionization potential nobler than that of the first metal; and further forming an electroplating film of a third metal on the surface of the metal-substituted plating film.
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Kikui Fumiaki
Yoshimura Kohshi
Hitachi Metals Ltd.
Kratz Quintos & Hanson, LLP
Wong Edna
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