Stabilization of perfluorocarbon emulsions, and perfluorinated heterocyclic compounds usable as emulsion-stabilizing additives
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United States of America Patent
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Jun 9, 1992
Grant Date -
N/A
app pub date -
Aug 27, 1990
filing date -
Aug 30, 1989
priority date (Note) -
Expired
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Abstract
The use of perfluorinated heterocyclic compounds of the general formula I, ##STR1## wherein n represents 2-8, X and Y represent a --CF.sub.2 OCF.sub.2 -- group, a --CF.sub.2 --CF.sub.2 --CF.sub.2 -- group or a --CF(CF.sub.3)--CF.sub.2 -- group, and Y is a --CF.sub.2 --O--CF.sub.2 -- group, a --CF(CF.sub.3)--CF.sub.2 --group or a --CF.sub.2 --CF.sub.2 --CF.sub.2 -- group, or mixtures thereof, is described as emulsion-stabilizing additives in medically usable aqueous emulsions of perfluorocarbons, optionally containing hetero atoms, suitable for use in blood substitutes. The compounds are obtained by electrochemical perfluorination.
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