Adhesive Resin Composition Coated Electromagnetic Steel Sheet And

Adhesive Resin Composition Coated Electromagnetic Steel Sheet And Method For Producing Same

Abstract: An adhesive resin composition-coated electromagnetic steel sheet comprising: a steel sheet; and an adhesive resin composition film on at least one surface of the steel sheet, wherein the adhesive resin composition film is a semi-cured product of an adhesive resin composition composed of a curing agent and an adhesive resin containing at least partially a thermosetting resin, the maximum penetration ? of the adhesive resin composition film at 100-300°C is at least 3% and less than 100%, as measured by thermomechanical analysis according to JIS K 7196:2012, a portion of the curing agent in the adhesive resin composition film is present in a crystalline state, and the area ratio of the curing agent in the crystalline state in a cross section, parallel to the surface of the steel sheet, of the adhesive resin composition film is 0.10-40%.

Patent Information

Application #

Filing Date

03 February 2025

Publication Number

08/2025

Publication Type

INA

Invention Field

POLYMER TECHNOLOGY

Status

Email

Parent Application

Applicants

NIPPON STEEL CORPORATION

6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Inventors

1. ARAMAKI, Takashi

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

2. SUZUKI, Yuki

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

3. OISHI, Hiroshi

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Specification

Documents

Application Documents

#	Name	Date
1	202517008749-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [03-02-2025(online)].pdf	2025-02-03
2	202517008749-STATEMENT OF UNDERTAKING (FORM 3) [03-02-2025(online)].pdf	2025-02-03
3	202517008749-REQUEST FOR EXAMINATION (FORM-18) [03-02-2025(online)].pdf	2025-02-03
4	202517008749-PROOF OF RIGHT [03-02-2025(online)].pdf	2025-02-03
5	202517008749-PRIORITY DOCUMENTS [03-02-2025(online)].pdf	2025-02-03
6	202517008749-POWER OF AUTHORITY [03-02-2025(online)].pdf	2025-02-03
7	202517008749-FORM 18 [03-02-2025(online)].pdf	2025-02-03
8	202517008749-FORM 1 [03-02-2025(online)].pdf	2025-02-03
9	202517008749-DRAWINGS [03-02-2025(online)].pdf	2025-02-03
10	202517008749-DECLARATION OF INVENTORSHIP (FORM 5) [03-02-2025(online)].pdf	2025-02-03
11	202517008749-COMPLETE SPECIFICATION [03-02-2025(online)].pdf	2025-02-03
12	202517008749-FORM 3 [09-07-2025(online)].pdf	2025-07-09