B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
117/125, 117/149
B32B 15/08 (2006.01) B05D 7/00 (2006.01) B05D 7/14 (2006.01) C08G 18/58 (2006.01) C23C 22/83 (2006.01) C23C 28/00 (2006.01) C25D 11/38 (2006.01)
Patent
CA 1303917
Abstract of the Disclosure The present invention relates to a highly corrosion- resistant surface-treated steel plate. The steel plate of the present invention comprises a zinc deposition or zinc allov deposition film as the undercoat deposition layer, a chromate film formed on the undercoat deposition layer and a film of a resin composition formed on the chromate film. This resin composition comprises a base resin formed by adding at least one basic nitrogen atom and at least two primary hydroxyl groups to terminals of an epoxy resin. The resin composition may comprise a polyisocyanate compound as the curing agent. Furthermore, the resin composition may comprise silica or a hardly soluble chromium compound as the additive for improving the corrosion resistance. Moreover, the resin composition may comprise a silane compound as the crosslinking agent for the base resin and silica.
524067
Adaniya Takeshi
Enatsu Akira
Kubota Takahiro
Miyosawa Yoshiaki
Nikaido Norio
Nippon Kokan Kabushiki Kaisha
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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