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:
Jan. 13, 2009
Filed:
Oct. 02, 2006
Koichi Saito, Shinagawa-ku, JP;
Motohiro Sasaki, Shinagawa-ku, JP;
Atsushi Morishita, Kimitsu, JP;
Akira Takahashi, Kimitsu, JP;
Hiroshi Kanai, Kimitsu, JP;
Masahiro Fuda, Futtu, JP;
Koichi Saito, Shinagawa-ku, JP;
Motohiro Sasaki, Shinagawa-ku, JP;
Atsushi Morishita, Kimitsu, JP;
Akira Takahashi, Kimitsu, JP;
Hiroshi Kanai, Kimitsu, JP;
Masahiro Fuda, Futtu, JP;
Nippon Steel Corporation, Tokyo, JP;
Nippon Paint Co., Ltd., Kita-ku, Osaka-shi, JP;
Abstract
It is an object of the present invention to provide an organic coating-treated metal sheet, having a coat capable of satisfying all the corrosion resistance, alkali resistance, solvent resistance, anti-scratch property and adhesion requirements which the conventional nonchromate type coating technologies have been difficult to meet. A surface-treated metal sheet with a coat comprising 50; to 90% by weight of a crosslinked resin matrix (A) and 10 to 50% by weight of an inorganic rust preventive (B) as formed on the metal sheet surface, wherein the crosslinked resin matrix (A) is formed by the reaction between a water-borne resin and a crosslinking agent and has an acid value of 0 to 30 due to carboxylic acid groups not neutralized by an alkali metal and a hydroxyl value of 5 to 50.