Invention Grant
- Patent Title: Process for preparing perfluoroethers by fluorination with elemental fluorine
- Patent Title (中): 用氟化氟化制备全氟醚的方法
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Application No.: US449340Application Date: 1989-12-11
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Publication No.: US4973716APublication Date: 1990-11-27
- Inventor: Pierangelo Calini , Silvana Modena
- Applicant: Pierangelo Calini , Silvana Modena
- Applicant Address: ITX
- Assignee: Ausimont S.p.A.
- Current Assignee: Ausimont S.p.A.
- Current Assignee Address: ITX
- Priority: ITX22420A/86 19861121
- Main IPC: B01J27/12
- IPC: B01J27/12 ; B23K35/38 ; C07B61/00 ; C07C41/00 ; C07C41/22 ; C07C43/12 ; C07C67/00 ; C07D307/18 ; C07D319/12
Abstract:
A process for fluorinating hydrogenated ethereal compounds by direct reaction with elemental F.sub.2 diluted with an inert gas, wherein the starting compound is in the liquid phase, said fluorination being carried out in the presence of a per fluoropolyetheral compound and of an alkaline metal fluoride.
Public/Granted literature
- US5578166A Method of reactive ion etching of a thin copper film Public/Granted day:1996-11-26
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