Preparing poly(arylene ketones) |
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| 申请号 | EP85302192 | 申请日 | 1985-03-28 | 公开(公告)号 | EP0173408A3 | 公开(公告)日 | 1987-09-30 |
| 申请人 | RAYCHEM CORPORATION (a California corporation); | 发明人 | Reamey, Robert Howard; | ||||
| 摘要 | The preparation of poly(arylene ketones) and in particular all para-linked poly(arylene ether ketones) by Friedel-Crafts polymerization in the presence of a Lewis acid generally results in an intractible reaction product difficult to remove from the reaction vessel and difficult to purify. The addition of a liquefaction agent, such as a hydrogen halide and in particular hydrogen chloride, to the reaction mixture, results in a tractible gel or a liquid which can be readily handled. The hydrogen halide is preferably under pressure and a diluent may also be added along with the hydrogen halide. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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