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. 17, 2012
Filed:
Sep. 06, 2007
Shinichi Yamaguchi, Tokyo, JP;
Masao Kurosaki, Tokyo, JP;
Yasuto Goto, Tokyo, JP;
Manabu Kumagai, Tokyo, JP;
Kensuke Mizuno, Tokyo, JP;
Takumi Kozaki, Tokyo, JP;
Shinichi Yamaguchi, Tokyo, JP;
Masao Kurosaki, Tokyo, JP;
Yasuto Goto, Tokyo, JP;
Manabu Kumagai, Tokyo, JP;
Kensuke Mizuno, Tokyo, JP;
Takumi Kozaki, Tokyo, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
An aqueous treating solution for an Sn-based plated steel sheet, comprising (A) an organic material, (B) a water-soluble chromium compound, (C) a water-dispersible silica, and water, wherein the organic material (A) is at least one member selected from an oxy-acid with the ratio of hydroxyl group/carboxyl group in one molecule being from 3/1 to 10/1, its lactone form and an oxide derivative thereof, the water-soluble chromium compound (B) does not contain hexavalent chromium, and pH is from 0.7 to 6.0.