C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
C25D 13/12 (2006.01) B32B 15/01 (2006.01) C25D 13/04 (2006.01) B32B 31/12 (1990.01)
Patent
CA 2044962
ABSTRACT OF THE DISCLOSURE A shaped or unshaped article of a non-ferrous metal sheet having an organic, surface coating film containing conductive and/or semiconductive, fine particles, is integrally bonded with a shaped or unshaped article of a steel sheet having or not having an organic, surface coating film; and this integrated body is subjected simultaneously to electrodeposition coating. The non-ferrous metal sheet having an organic, surface coating film containing conductive and/or semiconductive, fine particles shows excellent electrodeposition coating characteristics which can be easily regulated. Hence, integral coating after bounding with a steel sheet gives the same degree of film thickness and surface smoothness on both of the non-ferrous metal and steel sheets. This method is particularly suitable for the coating of automobile bodies integrally composed of non-ferrous metal and steel sheets ( needed by recent demand for lighter-weight automobiles ), ensuring energy- and labor-saving and giving final products of uniform finish.
Kuninori Takeshi
Matsuo Katsuhiko
Ridout & Maybee Llp
Shinto Paint Co. Ltd.
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