| abstract |
A production method for reducing the content of chlorine and diglycidyl ether in polyether glycol diglycidyl ether is provided. [MEANS FOR SOLVING PROBLEMS] A hydroxyl group of polyether glycol having a number average molecular weight of 200 to 2000 is produced at a pressure of 14 kPa or less in the presence of 0.8 to 15 mol of epichlorohydrin, an alkali metal hydroxide and a phase transfer catalyst. The content of total chlorine obtained by reacting in the temperature range of 0 to 60 ° C. while removing the water to be azeotroped with epichlorohydrin is 0.6% by mass or less, containing diglycidyl ether represented by chemical formula (1) The manufacturing method of the polyether glycol diglycidyl ether whose quantity is less than 1 mass%, and the epoxy resin composition using the obtained polyether glycol diglycidyl ether. [Selection figure] None |