ELECTRICAL STEEL SHEET WITH INSULATION COATING, METHOD OF MANUFACTURING SAME, AND COATING MATERIAL FOR FORMING INSULATING COATING
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United States of America Patent
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Issued Date -
Feb 12, 2015
app pub date -
Feb 25, 2013
filing date -
Feb 29, 2012
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Abstract
The present invention includes an electrical steel sheet with an insulation coating having a large interlaminar insulation resistance when laminated; a coating material for forming the insulation coating that is used for the electrical steel sheet and the coating material for forming the insulation coating, which includes apart from a solvent an aqueous carboxy group-containing resin as component (A), an aluminum-containing oxide as component (B), and at least one crosslinking agent as component (C) selected from the group consisting of melamine, isocyanate and oxazoline. There are component (A); 100 parts by mass; 40 parts by mass
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