摘要 |
PURPOSE:To obtain the titled composition having excellent dielectric properties, by incorporating an epoxy-modified polybutadiene and a powdered inorganic filler into an epoxy resin. CONSTITUTION:An epoxy-modified polybutadiene in an amount of 0.1-10wt%, a powdered inorganic filler (e.g. silica), and if necessary, a curing agent, an accelerator, a crosslinker, a dispersing agent, a colorant, etc. are incorporated into an epoxy resin such as a bisphenol A, novolak, glycidyl ester or halogenated epoxy resin. USE:Cast sealing materials for electrical equipment. |