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:
Oct. 04, 1983
Filed:
Dec. 17, 1981
Tomihiro Hara, Yokohama, JP;
Masahiro Ogawa, Yokohama, JP;
Masaaki Yamashita, Yokohama, JP;
Yasuhisa Tajiri, Yokohama, JP;
Nippon Kokan Kabushiki Kaisha, Tokyo, JP;
Abstract
A steel sheet with its surface prepared for paint coating is disclosed. The surface treated steel sheet comprises a base sheet, and an iron-zinc alloy film plated on the base sheet in an amount of at least 0.1 g/m.sup.2 and having an iron content of from 3 to 30%. A composite silicate resin film is coated on the iron-zinc alloy film in an amount of from 0.05 to 5.0 g/m.sup.2. The resin film is composed of an acrylic copolymer, an epoxy resin, a silica sol and a trialkoxysilane compound. The treated surface provides superior paintability, degrease resistance and corrosion resistance after pain coating.