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. 11, 2011
Filed:
Jun. 22, 2007
Atsushi Morishita, Tokyo, JP;
Masahiro Fuda, Tokyo, JP;
Hiroshi Kanai, Tokyo, JP;
Hiroshi Kosuge, Suita, JP;
Tsutomu Tawa, Takarazuka, JP;
Atsushi Morishita, Tokyo, JP;
Masahiro Fuda, Tokyo, JP;
Hiroshi Kanai, Tokyo, JP;
Hiroshi Kosuge, Suita, JP;
Tsutomu Tawa, Takarazuka, JP;
Nippon Steel Corporation, Tokyo, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
The present invention provides a surface-treated metal material having a film formed on at least a portion of a surface of a metal material, the film containing at least polyurethane resin and silicon oxide, and a metal surface treatment agent used to obtain the surface-treated metal material. The polyurethane resin contains one or more of siloxane bond, dehydration-condensation bond of silanol group and different functional group, and silanol moiety, and urea bond. The sum of the siloxane bond, the dehydration-condensation bond of silanol group and different functional group, total amount of the silanol moiety, and the silicon oxide falls within a range of equal to or more than 1.6 wt % to equal to or less than 25 wt % for solids of the film. The ratio of the total amount of urea bond and urethane bond to the total amount of resin components falls within a range of equal to or more than 0.1 wt % to equal to or less than 10 wt %.