PARTIALLY ESTERIFIED EPOXY RESIN AND PROCESS FOR PRODUCTION THEREOF

摘要

Provided is a process for the production of a partially esterified epoxy resin. In the process, a catalyst residue can be removed to a certain level or below by a relatively easy means, whereby a partially esterified epoxy resin with excellent storage stability and electrical characteristics can be produced. Also provided are a partially esterified epoxy resin and use thereof. A process for the production of a partially esterified epoxy resin which comprises a step of reacting a polyfunctional epoxy resin with (meth)acrylic acid in the presence of a polymer-supported basic catalyst and a step of removing the polymer-supported basic catalyst to obtain a partially esterified epoxy resin; and a partially esterified epoxy resin which is obtained by reacting a polyfunctional epoxy resin with (meth)acrylic acid in the presence of a polymer-supported basic catalyst and then removing the polymer-supported basic catalyst and in which the content of basic atoms resulting from the polymer-supported basic catalyst is 50ppm or less.