公开(公告)号：EP4265703A1

公开(公告)日：2023-10-25

申请号：EP21911400.6

申请日：2021-12-16

申请人： POSCO Co., Ltd

发明人： HA, Bongwoo ,  KIM, Jungwoo ,  LEE, Donggyu ,  KO, Eunjung ,  NO, Taeyoung ,  PARK, Gyeongryeol

IPC分类号： C09J175/04 ,  B32B37/12 ,  B32B15/01

摘要： The present disclosure relates to a bonding composition for an electrical steel sheet, and a steel sheet and a laminate to which same is applied, the bonding composition comprising polyurethane formed by reacting a diisocyanate monomer and a polyol, wherein the diisocyanate monomer can comprise an aromatic diisocyanate monomer and an aliphatic diisocyanate monomer.

公开(公告)号：EP4265701A1

公开(公告)日：2023-10-25

申请号：EP21911395.8

申请日：2021-12-16

申请人： POSCO Co., Ltd

发明人： HA, Bongwoo ,  KIM, Jungwoo ,  LEE, Donggyu ,  NO, Taeyoung ,  PARK, Gyeongryeol

IPC分类号： C09J175/04 ,  C09J4/06 ,  B32B37/12 ,  B32B15/01

摘要： One implementation of the present disclosure relates to a bonding composition for an electrical steel sheet, comprising an adhesive resin and a bonding additive, wherein the adhesive resin is polyurethane formed by reacting a polyol and a monomer represented by a specific chemical formula.