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. 25, 2011
Filed:
Nov. 28, 2006
Applicants:
Kazuhisa Okai, Hiroshima, JP;
Etsuo Hamada, Kanagawa, JP;
Syuji Nomura, Hiroshima, JP;
Inventors:
Assignee:
JFE Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 3/00 (2006.01); B05D 3/02 (2006.01); B32B 15/08 (2006.01); B32B 15/095 (2006.01); B32B 15/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A surface-treated galvanized steel sheet includes a steel sheet, a zinc coating disposed on the steel sheet, and a film disposed on the zinc coating. The film has a thickness in the range of 0.01 to 3 μm and contains certain amounts of resin compound having a particular chemical structure, cationic urethane resin, vanadium compound, zirconium compound, compound having a phosphate group, and acid compound. The surface-treated galvanized steel sheet contains no hexavalent chromium in the film and is excellent in terms of corrosion resistance, alkali resistance, and solvent resistance.