Title:
ADHESIVE COATING COMPOSITION FOR ELECTRICAL STEEL SHEET, ELECTRICAL STEEL SHEET LAMINATE, AND METHOD FOR MANUFACTURING ELECTRICAL STEEL SHEET PRODUCT
Document Type and Number:
WIPO Patent Application WO/2023/113562
Kind Code:
A1
Abstract:
The present invention provides an adhesive coating composition for an electrical steel sheet, an electrical steel sheet laminate using same, and a method for manufacturing an electrical steel sheet product, the adhesive coating composition comprising a polyurethane resin and an inorganic pigment, wherein the inorganic pigment is included in an amount of 20 to 150 parts by weight relative to 100 parts by weight of the polyurethane resin, and the polyurethane resin is formed by means of a reaction between an aromatic diisocyanate monomer and a polyol.
Inventors:
HA BONGWOO (KR)
KIM JUNGWOO (KR)
NO TAEYOUNG (KR)
LEE DONGGYU (KR)
KIM JUNGWOO (KR)
NO TAEYOUNG (KR)
LEE DONGGYU (KR)
Application Number:
PCT/KR2022/020650
Publication Date:
June 22, 2023
Filing Date:
December 16, 2022
Export Citation:
Assignee:
POSCO CO LTD (KR)
International Classes:
C09J175/04; B32B7/12; B32B15/01; C08G18/76; C09J11/04
Foreign References:
| KR20200036536A | 2020-04-07 | |||
| JP2017179233A | 2017-10-05 | |||
| JP2017186542A | 2017-10-12 | |||
| JPH07336969A | 1995-12-22 | |||
| JP3117846B2 | 2000-12-18 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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