C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 28/00 (2006.01) B05D 7/00 (2006.01) B23K 35/22 (2006.01) C09D 7/00 (2006.01) C23C 22/84 (2006.01) B05D 5/08 (2006.01)
Patent
CA 2063940
ABSTRACT OF THE DISCLOSURE A colored steel sheet having a coating thickness which is sufficiently small to permit welding therethrough, and yet exhibiting an excellent colored and lustrous surface. It is a steel sheet having a surface plated with zinc or zinc alloy, and carrying a chromate film formed on its plated surface, and a colored film formed on the chromate film from a composition comprising specific proportions of a water-soluble or water- dispersible thermosetting resin and a water-soluble dye. The composition may further contain a solid lubricant, or a granular rust-inhibitive pigment, or both. The colored film has a specific range of thickness, and a color other than a black.
Watanabe Toyofumi
Yamashita Masaaki
Yoshimi Naoto
Nkk Corporation
Swabey Ogilvy Renault
Watanabe Toyofumi
Yamashita Masaaki
Yoshimi Naoto
LandOfFree
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