Perfluoropolyether, die ein anderes Halogen ausser Fluor enthalten und die eine Säureendgruppe haben
Perfluoropolyethers having an acid end group, such as acyl fluoride (or chloride) or a carboxyl group or derivatives thereof, the other end group being a perfluoroalkyl group containing one or two halogen atoms different from fluorine, are prepared by photooxidation of C3F6 and/or C2F4 in the presen...
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Main Authors | , |
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Format | Patent |
Language | German |
Published |
25.04.1996
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | Perfluoropolyethers having an acid end group, such as acyl fluoride (or chloride) or a carboxyl group or derivatives thereof, the other end group being a perfluoroalkyl group containing one or two halogen atoms different from fluorine, are prepared by photooxidation of C3F6 and/or C2F4 in the presence of a perhalogenated ethylene containing 1 to 4, preferably 1 or 2, halogen atoms different from fluorine, and by subsequent thermal or photochemical decomposition of the peroxide groups present in the photooxidation product. |
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Bibliography: | Application Number: DE19896024800T |