CONCURRENT ADDITION PROCESS FOR PREPARING HIGH PURITY EPOXY RESINS

摘要

Epoxy resins which are relatively low in total bound halide are prepared by either concurrently and continuously or concurrently and intermittently adding (1) a mixture of an epihalohydrin, a compound containing an average of more than one group reactive with a vicinal epoxide group and a solvent and (2) an aqueous or organic solution of an alkali or alkaline earth metal hydroxide or manganese hydroxide; to (3) a mixture of epihalohydrin and a solvent.