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US 2026/0209580 A1Published application
Adhesive coating composition for electrical steel sheet, electrical steel sheet laminate, and method for manufacturing same
AssigneePosco
InventorsBongwoo HA, Donggyu LEE, Jungwoo KIM, Taeyoung NO, Jinyoung JANG
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Abstract
An electrical steel plate adhesive coating composition according to an embodiment includes a mixed resin of an urethane resin and an epoxy resin, wherein the urethane resin includes a repeating unit represented by Chemical Formula 1 and Chemical Formula 2.
Claims15
An electrical steel plate adhesive coating composition, comprising:
- a mixed resin of an urethane resin and an epoxy resin,
- wherein the urethane resin includes a repeating unit represented by Chemical Formula 1 and Chemical Formula 2.
- (In Chemical Formula 1 and Chemical Formula 2, R1 each independently represents hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C5 to C20 heteroaryl group, a hydroxy group, or a halogen element. L1, L2, and L3 represent a single bond or a divalent linker, respectively. n represents an integer from 1 to 50).
An electrical steel sheet structure, comprising:
- a plurality of electrical steel sheets;
- and
- a fusion layer positioned between the plurality of electrical steel plates,
- wherein the fusion layer includes a mixed resin of urethane resin and epoxy resin, and
- the urethane resin includes a repeating unit represented by Chemical Formula 1 and Chemical Formula 2.
- (In the above chemical formulas 1 and 2, R1 each independently represents hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C5 to C20 heteroaryl group, a hydroxy group, or a halogen element. L1, L2, L3 represent a single bond or a divalent linker, respectively. n represents an integer from 1 to 50.)
3 more elements
(canceled)
Dependencies are inferred from the claim text.