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公开(公告)号：US20240051269A1
公开(公告)日：2024-02-15
申请号：US18268269
申请日：2021-12-20
申请人： POSCO Co., Ltd
发明人： Jungwoo Kim , Bongwoo Ha , Donggyu Lee , Taeyoung No , Gyeongryeol Park
CPC分类号： B32B15/18 , B32B15/043 , B32B7/12 , B32B37/12 , B32B37/1284 , B32B37/18 , H02K1/02 , B32B2255/26 , B32B2255/06 , B32B2307/748 , B32B2309/12 , B32B2311/30 , B32B2457/00 , B32B2037/1253 , B32B2305/72 , B32B2307/206
摘要： The present invention relates to an electrical steel sheet laminate, and provided is an electrical steel sheet laminate comprising: a plurality of electrical steel sheets; and polymer adhesive layers positioned between the electrical steel sheets, wherein the coating thickness of the polymer adhesive layers is 1.8-5.4 μm, the space factor of the laminate is 95.8-98.5%, and the following mathematical formula 1 is satisfied. [Mathematical Formula 1] 172.4≤space factor (%)×thickness (μm)≤531.
172.4≤space factor (%)×thickness(μm)≤531 [Equation 1]-
公开(公告)号：US20240301237A1
公开(公告)日：2024-09-12
申请号：US18268806
申请日：2021-12-16
申请人： POSCO Co., Ltd
发明人： Bongwoo Ha , Jungwoo Kim , Kang Seo , Daegyu Kang , Taeyoung No , Donggyu Lee , Gyeongryeol Park
IPC分类号： C09D175/08 , B32B7/12 , B32B15/04 , B32B15/18 , C08G18/48 , C08G18/72 , C08G18/73 , C08G18/76 , C08K3/04 , C08K3/22 , C08K3/36 , C09D7/61 , H01F1/147
CPC分类号： C09D175/08 , B32B7/12 , B32B15/043 , B32B15/18 , C08G18/4825 , C08G18/722 , C08G18/73 , C08G18/7614 , C08G18/7671 , C08K3/04 , C08K3/22 , C08K3/36 , C09D7/61 , H01F1/14791 , B32B2255/06 , B32B2255/26 , B32B2264/1021 , B32B2264/1022 , B32B2264/108 , B32B2307/748 , C08K2003/2241
摘要： The present invention relates to an electrical steel sheet and a laminate thereof, and provided is an electrical steel sheet including: an electrical steel sheet, and a polyurethane coating layer positioned on the electrical steel shoot, in which the rebound clastic modulus of the polyurethane coating layer is 5% to 30%.
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