| abstract |
(57) [Summary] [Structure] An epoxy resin composition containing an epoxy resin (component A), dicyandiamide (component B), an imidazole compound (component C), and a polyisocyanate (component D) is used to form a sheet. A reinforcing adhesive sheet in which an adhesive layer 2 made of the above epoxy resin composition is formed on the base material surface of a sheet-shaped base material 1. [Effect] The epoxy resin composition has excellent storability in a high temperature atmosphere of 40 to 60 ° C, and the reinforcing adhesive sheet using it has excellent reinforcing property. |