Process for preparing peroxide perfluoropolyethers
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United States of America Patent
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Sep 22, 1992
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N/A
app pub date -
Oct 31, 1990
filing date -
Apr 20, 1989
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Expired
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Abstract
A process is disclosed for preparing peroxidic perfluoropolyethers comprising perfluoroalkylenoxy units having at least two carbon atoms, characterized in that one or more perfluoroolefins, except tetrafluoroethylene used alone, are reacted with oxygen in the liquid phase at a temperature not exceeding 50.degree. C. and in the presence of one or more compounds having one or more F-X bonds, in which X is selected from the group consisting of F, O and Cl.
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