Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1986-11-18
1988-10-04
Rutledge, L. Dewayne
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428626, 428632, 428659, 428684, B32B 1504
Patent
active
047756004
ABSTRACT:
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 alloy 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.
REFERENCES:
patent: 4407899 (1983-10-01), Hara et al.
patent: 4411964 (1983-10-01), Hara et al.
patent: 4659394 (1987-04-01), Hara et al.
The Advantages and Uses of Zincrometal in Automobile Bodies Oct. 1979 SAE Technical Paper Series "Organic-Silicate Composite Coated Steel Sheet for Automobile Body Panel" Dec. 1986.
Composite Pre-Coated Automobile Sheet Steel, Aug. 1986.
Adaniya Takeshi
Enatsu Akira
Kubota Takahiro
Miyosawa Yoshiaki
Nikaido Norio
Nields Henry C.
Nippon Kokan Kabushiki Kaisha
Rutledge L. Dewayne
Wyszomieirski George
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