Patent ID: 7268192

Claim:
A process for production of a high-purity epoxy compound with total chlorine content of less than 500 ppm, said process comprising: reacting an epoxy compound according to formula (I): wherein, R represents a dihydric phenol compound residue and/or a dihydric alcohol compound residue, and n represents a numerical value with the average greater than 0 and not greater than 10, in which the proportion of the component having n equal to 0 is more than 70% and less than 100%, in the presence of alkali metal hydroxide at temperature of 95° C.-150° C., to produce an epoxy compound according to formula (II): wherein, R represents a dihydric phenol compound residue and/or a dihydric alcohol compound residue, n represents a numerical value with the average greater than 0 and not greater than 10, and X is a hydrogen atom or a group according to formula (III): wherein, R has the above-described meaning in which the component with X represented by the-general formula (III) is always contained.