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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 12037511 B1

PDFFull Text
Date of Patent:
Jul. 16, 2024

Filed:

Jun. 17, 2021

Coating composition for electrical steel sheet, surface-coated electrical steel sheet for adhesion and laminated core

Applicant:

Nippon Steel Corporation, Tokyo, JP;

Inventors:

Kazutoshi Takeda, Tokyo, JP;

Ichiro Tanaka, Tokyo, JP;

Minako Fukuchi, Tokyo, JP;

Shinsuke Takatani, Tokyo, JP;

Shuichi Yamazaki, Tokyo, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Robert T Butcher

Int. Cl.
CPC ...
C09D 163/00 (2006.01); C09D 7/40 (2018.01); C09D 7/61 (2018.01);
U.S. Cl.
CPC ...
C09D 163/00 (2013.01); C09D 7/61 (2018.01); C09D 7/66 (2018.01);
Abstract

This coating composition for an electrical steel sheet is a coating composition for an electrical steel sheet containing an epoxy resin, a high-temperature curing agent, and inorganic fine particles, wherein a content of the high-temperature curing agent with respect to 100 parts by mass of the epoxy resin is 5 to 30 parts by mass, wherein the inorganic fine particles are one or more selected from metal hydroxides, metal oxides that react with water at 25° C. to become metal hydroxides and silicate minerals having a hydroxyl group, wherein the volume average particle diameter of the inorganic fine particles is 0.05 to 2.0 μm, wherein a content of the epoxy resin with respect to a total mass of the coating composition for an electrical steel sheet is 45 mass % or more, and wherein a content of the inorganic fine particles with respect to 100 parts by mass of the epoxy resin is 1 to 100 parts by mass.

Find Patent Forward Citations

Takeda, Kazutoshi. (2024). Coating composition for electrical steel sheet, surface-coated electrical steel sheet for adhesion and laminated core (U.S. Patent No. 12037511). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12037511

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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