发明授权
- 专利标题： Process for separating from on another the non-functional, monofunctional and bifunctional species contained in the perfluoropolyoxyalkylenes
- 专利标题（中）： 在其他方法中分离含有全氟聚氧乙烯的非功能，单功能和双功能物种
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申请号： US963658申请日： 1992-10-20
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公开(公告)号： US5246588A公开(公告)日： 1993-09-21
- 发明人: Claudio Tonelli , Stefano Turri , Marinella Levi , Giuseppe Gianotti
- 申请人： Claudio Tonelli , Stefano Turri , Marinella Levi , Giuseppe Gianotti
- 申请人地址： ITX Milan
- 专利权人： Ausimont S.p.A.
- 当前专利权人： Ausimont S.p.A.
- 当前专利权人地址： ITX Milan
- 优先权： ITX002773A/91 19911021
- 主分类号： B01D15/08
- IPC分类号： B01D15/08 ; B01J20/285 ; C08G65/00 ; C08G65/02 ; C08G65/30 ; G01N30/88
摘要：
A process for separating, or enriching, non-functional, monofunctional and bifunctional species in a mixture of perfluoropolyoxyalkylenes of the general formula:Z--O--Rf--YwhereRf=a perfluoropolyoxyalkylene chain comprising one or more monomeric units of formula ##STR1## --CFXO-- (X=F, CF.sub.3), and optionally also units (--CF.sub.2 CF.sub.2 O--); andZ, Y, like or different from each other, are non-functional groups or functional groups containing --OH,which consists in subjecting said mixture of perfluoropolyoxyalkylenes to column chromatography using, as eluents, non-polar fluorinated solvents, either alone or in admixture with polar solvents.
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