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:
Jan. 02, 2018

Filed:

Dec. 28, 2012
Applicant:

Posco, Pohang-si, Gyeongsangbuk-do, KR;

Inventors:

Hyun-Tae Kim, Kyungsangbook-do, KR;

Young-Sool Jin, Gwangyang-si, KR;

Assignee:

POSCO, Pohang-si, Gyeongsangbuk-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 2/26 (2006.01); C23C 2/06 (2006.01); C22C 18/04 (2006.01); C22C 18/00 (2006.01); C09D 5/08 (2006.01); C23C 22/40 (2006.01); C23C 22/42 (2006.01); C25D 5/48 (2006.01); C25D 7/06 (2006.01); C23C 18/12 (2006.01);
U.S. Cl.
CPC ...
C09D 5/08 (2013.01); C22C 18/00 (2013.01); C22C 18/04 (2013.01); C23C 2/06 (2013.01); C23C 2/26 (2013.01); C23C 18/122 (2013.01); C23C 18/1216 (2013.01); C23C 18/1241 (2013.01); C23C 22/40 (2013.01); C23C 22/42 (2013.01); C25D 5/48 (2013.01); C25D 7/0614 (2013.01); C23C 2222/20 (2013.01); Y10T 428/12569 (2015.01);
Abstract

A surface treatment composition for a galvanized steel sheet containing, based on 100 parts by weight of the total solution, 3.0 to 25.0 parts by weight of a silane compound, 0.5 to 5.0 parts by weight of a molybdenum compound, 0.5 to 5.0 parts by weight of a vanadium compound, 0.1 to 3.0 parts by weight of a nickel compound, 0.05 to 1.0 parts by weight of a copper compound, and a remainder of solvent, a surface treatment method for a galvanized steel sheet using the surface treatment composition, and a surface-treated galvanized steel sheet, are provided. Corrosion resistance, blackening resistance, warm water resistance, and conductivity are secured free from concerns regarding the installation of additional equipment for treating chromium, increased manufacturing costs, and environmental pollution.


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