Stock material or miscellaneous articles – Sheets or webs edge spliced or joined – Sheets or webs coplanar
Patent
1988-02-25
1989-12-26
McDowell, Robert
Stock material or miscellaneous articles
Sheets or webs edge spliced or joined
Sheets or webs coplanar
428626, 428632, 428659, 428684, B32B 1504
Patent
active
048897752
ABSTRACT:
The present invention relates to a highly corrosion resistant surface-treated steel plate. The steel plate of the 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 substrate resin formed by adding at least one basic nitogen atom and at least two primary hydrogen groups to terminal of an epoxy resin, silica and sparingly water soluble Cr compound. The resin composition may comprise a polyisocyanate compound as the curing agent. Moreover, the resin composition may comprise a silane compound as the crosslinking agent for the substrate resin and silica.
REFERENCES:
patent: 4407899 (1983-10-01), Hara et al.
patent: 4411964 (1983-10-01), Hara et al.
patent: 4450209 (1984-05-01), Hara et al.
patent: 4548868 (1985-10-01), Yonezawa et al.
patent: 4659394 (1987-04-01), Hara et al.
patent: 4775600 (1988-10-01), Adaniya et al.
Adaniya Takeshi
Enatsu Akira
Kubota Takahiro
Miyosawa Yoshiaki
Nikaido Norio
Kansai Paint Co. Ltd.
McDowell Robert
Nields Henry C.
Nippon Kokan Kabushiki Kaisha
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