| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an epoxy resin composition for casting, improving workability without causing negatively affect on mechanical properties of devices such as a casted ignition coil, suppressing sedimentation of fillers, and excellent in electrical properties. <P>SOLUTION: The epoxy resin composition for casting comprises, as essential ingredients, a principal ingredient comprising (A) an epoxy resin, (B1) crushed fused silica of 10-20μm number-average particle diameter and (B2) spherical fused silica of 10-30μm number-average particle diameter, and a curing agent ingredient comprising (C) an alicyclic acid anhydride curing agent, (D1) crushed fused silica of 10-20μm number-average particle diameter, (D2) spherical fused silica of 10-30μm number-average particle diameter and (E) a sedimentation preventive comprising organic bentonite. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
