| 摘要 |
PROBLEM TO BE SOLVED: To provide a curable epoxy resin composition for impregnation having good appearance of a cross section of a wound iron core and suitable for cut core impregnation applications.SOLUTION: There is provided a one-liquid curable epoxy resin composition for impregnation that consists of 100 pts.mass of (A) a bisphenol type epoxy resin, 0.1 to 25 pts.mass of (B) a boron trihalide complex and 10 to 140 pts.mass of a monofunctional glycidyl compound and/or difunctional glycidyl compound (excluding the (A) component) and having viscosity at 25°C set at 150 mPa s or less and a tensile shear adhesive strength (JIS K6850) after curing set at 10 MPa or more.SELECTED DRAWING: None |
