| 摘要 |
PROBLEM TO BE SOLVED: To provide a coil-impregnating resin composition capable of curing at a temperature lower than conventional compositions and staying useful for a long time after being mixed with a hardener. SOLUTION: The coil-impregnating resin composition staying useful for a long usable time after being mixed with a hardener comprises (A) an unsaturated polyester resin, (B) a reactive monomer, and (C) an hardener comprising two organic peroxides which are a low-temperature decomposition type organic peroxide with its half-life being 10 hours in the 55-70°C range and a medium-temperature decomposition type organic peroxide with its half-life being 10 hours in the 85-100°C range. COPYRIGHT: (C)2006,JPO&NCIPI
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