B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 15/18 (2006.01) B05D 5/06 (2006.01) B05D 7/14 (2006.01) B32B 15/08 (2006.01) C09D 7/00 (2006.01) C09D 7/12 (2006.01) C23C 28/00 (2006.01)
Patent
CA 2042816
ABSTRACT OF THE DISCLOSURE A black steel sheet having a sufficiently small coating thickness to allow the welding of the steel sheet, and yet exhibiting an excellently black surface. It is a steel sheet having a surface plated with zinc or a zinc alloy, and carrying a chromate film formed on its plated surface, and a black film formed on the chromate film from a composition comprising specific proportions of a thermosetting resin and a black dye, which are both soluble in an organic solvent, and having a sufficiently small thickness. The composition may further contain a solid lubricant, or a granular rust-inhibitive pigment, or both.
Miyoshi Tatsuya
Ookuma Toshiyuki
Watanabe Toyofumi
Watanabe Tsutomu
Yamashita Masaaki
Miyoshi Tatsuya
Nkk Corporation
Ookuma Toshiyuki
Swabey Ogilvy Renault
Watanabe Toyofumi
LandOfFree
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