| 发明名称 |
Process for decontaminating perfluoropolyethers. |
| 摘要 |
<p>A process for fully removing from perfluoropolyethers having a minimum vapour tension, organic polluting substances containing -OH groups and/or
<Chemistry id="chema01" num="0001"><Image id="ia01" he="4" wi="10" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="yes" /></Chemistry>bonds, by treating the perfluoropolyether with oxygen, or chlorine or fluorine, at a high temperature and in the presence of ultra- violet radiation, in order to convert the impurities to volatile degradation products easily removable by degassing.</p> |
| 申请公布号 |
EP0158446(A1) |
申请公布日期 |
1985.10.16 |
| 申请号 |
EP19850301723 |
申请日期 |
1985.03.13 |
| 申请人 |
MONTEDISON S.P.A. |
发明人 |
CAPORICCIO, GERARDO;STREPPAROLA, EZIO |
| 分类号 |
B01D19/00;C07C41/00;C07C41/44;C07C41/58;C07C43/12;C07C67/00;C08G65/30;C10M105/54;C10M107/38;C10M175/00;C10N40/30;(IPC1-7):C08G65/30;C08G65/00 |
主分类号 |
B01D19/00 |
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