logo

For the Inventor, By the Inventor

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.:

US 11255010 B1

PDFFull Text
Date of Patent:
Feb. 22, 2022

Filed:

Sep. 08, 2020

Zinc-based plated steel sheet having post-treated coating formed thereon

Applicant:

Posco, Pohang-si, KR;

Inventors:

Yeon-Ho Kim, Gwangyang-si, KR;

Yung-Keun Kim, Gwangyang-si, KR;

Young-Jun Park, Gwangyang-si, KR;

Yong-Woon Kim, Gwangyang-si, KR;

Assignee:

POSCO, Pohang-si, KR;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
B32B 15/04 (2006.01); C23C 2/26 (2006.01); C09D 1/00 (2006.01); C23C 22/40 (2006.01); C23C 18/00 (2006.01); C23C 20/00 (2006.01); C23C 2/40 (2006.01); C23C 22/46 (2006.01); C23C 20/02 (2006.01); C23C 20/04 (2006.01); C23C 20/06 (2006.01); C23C 22/68 (2006.01); C23C 30/00 (2006.01); B32B 15/01 (2006.01); C23C 22/06 (2006.01); C23C 22/48 (2006.01); C23C 22/00 (2006.01); C23C 22/53 (2006.01); C23C 2/06 (2006.01); B32B 15/18 (2006.01); C23C 22/74 (2006.01); C23C 22/05 (2006.01);
U.S. Cl.
CPC ...
C23C 2/26 (2013.01); B32B 15/013 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); C09D 1/00 (2013.01); C23C 2/06 (2013.01); C23C 2/40 (2013.01); C23C 18/00 (2013.01); C23C 20/00 (2013.01); C23C 20/02 (2013.01); C23C 20/04 (2013.01); C23C 20/06 (2013.01); C23C 22/00 (2013.01); C23C 22/05 (2013.01); C23C 22/06 (2013.01); C23C 22/40 (2013.01); C23C 22/46 (2013.01); C23C 22/48 (2013.01); C23C 22/53 (2013.01); C23C 22/68 (2013.01); C23C 22/74 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); Y10T 428/1266 (2015.01); Y10T 428/12556 (2015.01); Y10T 428/12576 (2015.01); Y10T 428/12597 (2015.01); Y10T 428/12604 (2015.01); Y10T 428/12611 (2015.01); Y10T 428/12618 (2015.01); Y10T 428/12667 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12806 (2015.01); Y10T 428/12819 (2015.01); Y10T 428/12826 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01); Y10T 428/12993 (2015.01); Y10T 428/2495 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/26 (2015.01); Y10T 428/263 (2015.01); Y10T 428/264 (2015.01); Y10T 428/265 (2015.01); Y10T 428/27 (2015.01);
Abstract

Provided is a zinc-based plated steel sheet having a post-treated coating filmed thereon including: a steel sheet; a zinc plated layer formed on the steel sheet; and a post-treated coating formed on the plated layer, wherein the atomic ratio (O/M) of oxygen (O) to metals (M) contained in the post-treated coating is greater than 2 and less than 20, and a method for post-treating a zinc-based plated steel sheet. According to this, the zinc-based plated steel sheet having the post-treated coating formed thereon has the effects excellent in lubricity, weldability, adhesiveness, film-removing property and paintability. As the method of post-treating a zinc-based plated steel sheet of the present invention employs a simple coating method irrespective of the kind of plating layer, the process is simple and economical and the process operation cost is low.

Find Patent Forward Citations

Loading…