发明授权
- 专利标题: Process for preparing controlled molecular weight perfluoropolyethers having perfluoroalkyl or perfluorochloroalkyl end groups
- 专利标题(中): 制备具有全氟烷基或全氟氯烷基端基的受控分子量全氟聚醚的方法
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申请号: US346479申请日: 1989-05-02
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公开(公告)号: US5051158A公开(公告)日: 1991-09-24
- 发明人: Giuseppe Marchionni , Anna Staccione
- 申请人: Giuseppe Marchionni , Anna Staccione
- 申请人地址: ITX
- 专利权人: Ausimont S.r.L.
- 当前专利权人: Ausimont S.r.L.
- 当前专利权人地址: ITX
- 优先权: ITX20407A/88 19880502
- 主分类号: C08G65/22
- IPC分类号: C08G65/22 ; C07C41/01 ; C07C43/12 ; C08G65/00 ; C08G65/323
摘要:
This invention relates to preparing perfluoropolyethers having neutral end groups by a process based on the photooxidation of C.sub.3 F.sub.6 and/or C.sub.2 F.sub.4, thereby obtaining controlled molecular weight products having perfluoroalkyl or perfluorochloroalkyl neutral end groups, with high yields of useful products.
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