Perchlorofluorinated hydrocarbons and process for their preparation
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United States of America Patent
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Apr 26, 1988
Grant Date -
N/A
app pub date -
Oct 30, 1985
filing date -
Nov 13, 1984
priority date (Note) -
Expired
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Abstract
Novel perchlorofluorinated hydrocarbons of the general formula: wherein X and Y represent chlorine or fluorine atoms, and m and n are integers from 1 to 5, together with a process for preparing such perchlorofluorocarbons by reacting chlorotrifluoroethylene or tetrafluoroethylene with carbon tetrachloride or a telomer having the formula Cl.sub.3 C-(CF.sub.2 -CFX).sub.m -Cl in a polar solvent at a temperature of at least 120.degree. C. in the presence of copper or a copper salt.
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