| 摘要 |
PURPOSE:To obtain a flexible epoxy resin compsn. providing a coating having excellent moisture resistance, heat resistance, chemical resistance, adhesive strength and heat cycle characteristics when a powder paint is prepd. therefrom, by compounding a specified mixed epoxy resin with a specified curing agent. CONSTITUTION:This flexible epoxy resin compsn. is obtd. by compounding a mixed epoxy resin consisting of a bisphenol A type epoxy resin and a novolak type epoxy resin with a linear higher aliph. dicarboxylic acid of formula I (wherein R is a linear higher aliph. group) and/or a diphenylol deriv. of formula II (wherein m is 0-8) as curing accelerators. When this compsn. is applied as a powder coating a coating having excellent moisture resistance, heat resistance, chemical resistance, adhesive strength and heat cycle characteristics can be obtd. It is suitable as a powder coating for an insulating sealant for electronic components, e.g., ceramic capacitors, resistance net works, hybrid IC and coil components such as inductors.
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