| 摘要 |
PROBLEM TO BE SOLVED: To provide a two-pack epoxy resin composition for casting excellent in storage stability and workability of a main agent and also excellent in a coil impregnating property of the resin composition. SOLUTION: The epoxy resin composition comprises a main agent component containing (A) an epoxy resin, (B) silica, (C) aluminum hydroxide having 5-20μm average particle diameter and (D) a salt of an unsaturated polyaminoamide with an acidic polyester and a curing agent component containing (E) an acid anhydride curing agent and (F) a curing accelerator. The epoxy resin composition is excellent in workability and storage stability of the main agent in the resin composition and excellent also in a coil impregnating property of the resin composition. COPYRIGHT: (C)2005,JPO&NCIPI
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