Perfluoro branched alkyl ethers and emulsions
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United States of America Patent
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May 25, 1993
Issued Date -
N/A
app pub date -
Mar 30, 1992
filing date -
Sep 8, 1981
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Expired
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Abstract
There is provided a novel perfluorochemical represented by the formula, ##STR1## wherein R.sub.F is a perfluoroalkyl group, a perfluoro alkoxyalkyl group or a perfluoroalkyloxy group, X and X' are same as or different from each other and are a fluorine atom or a perfluoroalkyl group, and Y is a perfluoroalkyloxy group or a perfluoro dialkylamino group, the total number of the carbon atoms contained being an integer of 8 to 11 inclusive. The perfluorochemical is prepared by perfluorinating the corresponding partially fluorinated compound which may have unsaturated hydrocarbon moiety, only with molecular fluorine in a stoichiometric excess amount in an inert solvent. The perfluorochemical is used for preparing a stable emulsion as blood substitutes or perfusion media.
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