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1.
公开(公告)号:US20240287362A1
公开(公告)日:2024-08-29
申请号:US18268780
申请日:2021-12-16
申请人: POSCO Co., Ltd
发明人: Bongwoo HA , Jungwoo KIM , Donggyu LEE , Eunjung KO , Taeyoung NO , Gyeongryeol PARK
CPC分类号: C09J175/04 , B32B7/12 , B32B15/043 , B32B15/18 , C08G18/4825 , C08G18/724 , B32B2255/06 , B32B2255/26 , B32B2307/748
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.
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2.
公开(公告)号:US20240301260A1
公开(公告)日:2024-09-12
申请号:US18268768
申请日:2021-12-16
申请人: POSCO Co., Ltd
发明人: Bongwoo HA , Jungwoo KIM , Donggyu LEE , Taeyoung NO , Gyeongryeol PARK
CPC分类号: C09J175/08 , B32B7/12 , B32B15/043 , B32B15/18 , C08G18/4825 , C08G18/7614 , C08G18/7671 , B32B2255/06 , B32B2255/26 , B32B2307/748
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.
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公开(公告)号:US20240278535A1
公开(公告)日:2024-08-22
申请号:US18268755
申请日:2021-12-17
申请人: POSCO Co., Ltd
发明人: Donggyu LEE , Jungwoo KIM , Bongwoo HA , Taeyoung NO , Gyeongryeol PARK
CPC分类号: B32B15/043 , B32B7/12 , B32B15/18 , C09J1/00 , C09J11/06 , C09J175/08 , H01F1/14783 , B32B2255/06 , B32B2255/20 , B32B2255/26 , B32B2255/28 , B32B2307/748
摘要: The present invention relates to: an electrical steel sheet including: an electrical steel sheet; and a bonding coating layer positioned on the electrical steel sheet, and further including: a first interface layer positioned in the electrical steel sheet and brought into contact with the bonding coating layer; and a second interface layer positioned in the bonding coating layer and brought into contact with the first interface layer, in which 70 mol % or more of total Si content in the bonding coating layer including the second interface layer is present in the second interface layer.
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公开(公告)号:US20240051264A1
公开(公告)日:2024-02-15
申请号:US18268763
申请日:2021-12-17
申请人: POSCO Co., Ltd
发明人: Jungwoo KIM , Bongwoo HA , Donggyu LEE , Taeyoung NO , Gyeongryeol PARK
CPC分类号: B32B15/011 , B32B7/12 , B32B38/0004 , B32B37/10 , B32B37/06 , B32B37/1207
摘要: The present disclosure relates to a method for manufacturing an electrical steel sheet laminate, the method comprising the steps of: preparing an electrical steel sheet strip including an adhesive layer; coating the strip with a fusion accelerator including a silane coupling agent, a curing agent, and a solvent; fabricating metal parts from the strip; and laminating the metal parts and attaching same to each other by compression.
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