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.

Date of Patent:
Apr. 09, 2019

Filed:

Oct. 18, 2013
Applicant:

Nihon Parkerizing Co., Ltd., Tokyo, JP;

Inventors:

Eisuke Kudo, Tokyo, JP;

Yoshikazu Namai, Tokyo, JP;

Daisuke Shimizu, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 22/05 (2006.01); C25D 9/02 (2006.01); C09D 5/08 (2006.01); C09D 163/00 (2006.01); C23C 26/00 (2006.01); C25D 9/08 (2006.01); B32B 15/092 (2006.01); C23C 22/34 (2006.01); C23C 22/50 (2006.01); C23C 22/53 (2006.01); C23C 22/56 (2006.01); C23C 22/58 (2006.01); C09D 7/61 (2018.01); C09D 7/63 (2018.01);
U.S. Cl.
CPC ...
C23C 22/05 (2013.01); B32B 15/092 (2013.01); C09D 5/08 (2013.01); C09D 7/61 (2018.01); C09D 7/63 (2018.01); C09D 163/00 (2013.01); C23C 22/34 (2013.01); C23C 22/50 (2013.01); C23C 22/53 (2013.01); C23C 22/56 (2013.01); C23C 22/58 (2013.01); C23C 26/00 (2013.01); C25D 9/02 (2013.01); C25D 9/08 (2013.01); C23C 2222/20 (2013.01);
Abstract

Provided is a surface treatment agent for a metal material with which it is possible to produce a surface-treated metal material that has excellent initial anti-rust properties without being coated with an anti-rust oil, excellent lubrication properties, and excellent anti-corrosion and adhesion properties in a coating film for which phosphate-based chemical conversion treatment, zirconium-based chemical conversion treatment, or other coating underlay processing is omitted. This surface treatment agent for a metal material contains: a zirconium compound; an aqueous epoxy resin having in the skeleton thereof a carboxyl-group-containing polymer that includes a repeated unit derived from a carboxyl-group-containing vinyl monomer, said aqueous epoxy resin also having an acid value of 5-50 mg KOH/g; and a hydroxycarboxylic acid.


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