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:
Apr. 07, 2026
Filed:
Jun. 17, 2022
Applicant:
Jfe Steel Corporation, Tokyo, JP;
Inventors:
Shinichi Furuya, Tokyo, JP;
Takeshi Matsuda, Tokyo, JP;
Tomohiro Aoyama, Tokyo, JP;
Shun Koibuchi, Tokyo, JP;
Assignee:
JFE Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 125/14 (2006.01); B05D 7/14 (2006.01); C09D 5/08 (2006.01); C09D 191/06 (2006.01);
U.S. Cl.
CPC ...
C09D 125/14 (2013.01); B05D 7/14 (2013.01); C09D 5/08 (2013.01); C09D 191/06 (2013.01); B05D 2202/10 (2013.01); B05D 2252/00 (2013.01); B05D 2502/00 (2013.01); B05D 2507/01 (2013.01); B05D 2701/00 (2013.01);
Abstract
A lubricating film-coated steel sheet has at least one surface on which an organic resin film is formed. The organic resin film contains an acrylic resin having a glass transition point (Tg) of 100° C. or higher and an acid value ratio R=acid value (mg-KOH/g)/Tg (° C.) of 1.50 or more, and 5 mass % or more of a polyolefin wax having a melting point of 100° C. or higher and 145° C. or lower and an average particle diameter of 3.0 μm or less, and is formed on a surface of a steel sheet at a coating weight, W, of 0.3 g/mor more and 2.5 g/mor less per surface.