| 摘要 |
PURPOSE:The titled composition, obtained by using tetraphenylborate of tri-p- tolylphosphine as a curing accelerator and novolak type phenolic resin as a curing agent and having improved molding operability, fluidity, curability and hardness. CONSTITUTION:An epoxy resin composition containing a novolak type phenolic resin, preferably 0.8-1.2, based on one epoxy group, phenolic groups as a curing agent and tetraphenylborate of tri-p-tolylphosphine expressed by the formula as a curing accelerator. The amount of the above-mentioned curing accelerator to be blended is preferably 2-3pts.wt. based on 100pts.wt. epoxy resin.
|
