| 发明名称 |
POLYARYLETHERS AND PROCESS THEREFOR |
| 摘要 |
An improved two step process for preparing high molecular weight, high melting polyarylethers by polycondensing an alkyl-substituted dihydric phenol and an aromatic dihalide, and thereafter dealkylating the polycondensation product with a protic acid having an acidity function (Ho) of less than -11. |
| 申请公布号 |
WO8807561(A1) |
申请公布日期 |
1988.10.06 |
| 申请号 |
WO1988US00913 |
申请日期 |
1988.03.25 |
| 申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
RISSE, WILHELM, KLAUS |
| 分类号 |
C08G65/40;C08G65/48;(IPC1-7):C08G8/02;C08G75/23 |
主分类号 |
C08G65/40 |
| 代理机构 |
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代理人 |
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| 主权项 |
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