The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 1989
Filed:
Feb. 25, 1988
Takeshi Adaniya, Tokyo, JP;
Masaaki Yamashita, Tokyo, JP;
Takahiro Kubota, Tokyo, JP;
Akira Enatsu, Tokyo, JP;
Norio Nikaido, Hiratsuka, JP;
Yoshiaki Miyosawa, Hiratsuka, JP;
Tadashi Nishimoto, Hiratsuka, JP;
Nippon Kokan Kabushiki Kaisha, Tokyo, JP;
Kansai Paint Co., Ltd., Amagasaki, JP;
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.