| 发明名称 |
METHOD FOR WASHING AROMATIC POLYETHER BY USING ALKALI AQUEOUS SOLUTION |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a washing method by which the content of an alkali metal in an aromatic polyether is more reduced. SOLUTION: The aromatic polyether is washed with an aqueous solution of an acid, and the washed aromatic polyether is neutralized with an alkali aqueous solution.
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| 申请公布号 |
JP2002080589(A) |
申请公布日期 |
2002.03.19 |
| 申请号 |
JP20000272868 |
申请日期 |
2000.09.08 |
| 申请人 |
SUMITOMO CHEM CO LTD |
发明人 |
OTA CHIKARA;SATO KUNIHISA |
| 分类号 |
C08G65/46;(IPC1-7):C08G65/46 |
主分类号 |
C08G65/46 |
| 代理机构 |
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