| 摘要 |
PROBLEM TO BE SOLVED: To provide a production method of dioxyethylene ether of bisphenols, extremely low in content of ethylene oxide 1 mole-adduct and ethylene oxide 3 mol-adduct compared with conventionals. SOLUTION: A production method of dioxyethylene ether (B) of bisphenols by adding ethylene oxide to the bisphenols (A) is provided, wherein the dioxyethylene ether (B) of bisphenols is produced in the presence of water and lithium hydroxide as a catalyst. COPYRIGHT: (C)2008,JPO&INPIT
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