Precoated metal sheet with little affect on environment
AssigneeNippon Steel Corporation
InventorsHiromasa Shoji, Koki Tanaka, Hiromasa Nomura, Yuji Kubo, Takeshi Hamada
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Abstract
The present invention provides a precoated metal sheet excellent in the coating material adhesion and having little affect on environment. The precoated metal sheet of the invention is a precoated metal sheet comprising a metal or plated metal sheet having stacked on the surface thereof at least a coat layer and an organic resin layer, the metal or plated metal sheet mainly comprising zinc and aluminum and the coat layer mainly comprising one or both of a metal oxide and a metal hydroxide each using a metal species exclusive of chromium.
Claims7
A precoated metal sheet comprising a metal or plated metal sheet having stacked, on at least one surface thereof, at least a coat layer and an organic resin layer, the plating of the plated metal sheet consisting essentially of zinc and aluminum and the coat layer consisting of one or both of a metal oxide and a metal hydroxide, wherein said one or both of the metal oxide and the metal hydroxide do not contain chromium, and wherein the coverage of said coat layer is from 50% to 90%.
Dependencies are inferred from the claim text.