Title:
ADHESIVE RESIN COMPOSITION-COATED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2024/024834
Kind Code:
A1
Abstract:
An adhesive resin composition-coated electromagnetic steel sheet comprising a steel sheet and an adhesive resin composition coating film provided to at least one surface of the steel sheet, wherein the adhesive resin composition coating film is a semi-cured object of an adhesive resin composition that contains a curing agent and an adhesive resin containing a thermosetting resin as at least a portion thereof, the maximum penetration λ of the adhesive resin composition coating film at 100-300°C as measured through a thermomechanical analysis described in JIS K 7196:2012 is not less than 3% but less than 100%, a portion of the curing agent exists in the adhesive resin composition coating film in a crystal state, and the depolarization light scattering intensity I of the adhesive resin composition coating film is 1.00×107 to 50.00×107.
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Inventors:
ARAMAKI TAKASHI (JP)
SUZUKI YUKI (JP)
OISHI HIROSHI (JP)
SUZUKI YUKI (JP)
OISHI HIROSHI (JP)
Application Number:
PCT/JP2023/027379
Publication Date:
February 01, 2024
Filing Date:
July 26, 2023
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C09J7/28; C09J133/04; C09J163/00; C09J167/00; C09J175/04; C09J201/00; C23C26/00; H01F1/147; H01F1/18; H01F27/24; H01F41/02
Domestic Patent References:
| WO2022270154A1 | 2022-12-29 |
Foreign References:
| JPH02208034A | 1990-08-17 | |||
| JPH0238042A | 1990-02-07 | |||
| JPH07308990A | 1995-11-28 | |||
| JP2009218351A | 2009-09-24 |
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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