Pyrolysis of perfluoropolyethers
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United States of America Patent
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Jan 16, 1990
Issued Date -
N/A
app pub date -
Sep 3, 1987
filing date -
Nov 8, 1985
priority date (Note) -
Expired
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Abstract
A method of breaking down perfluoropolyethers into lower molecular weight fragments by pyrolysis is disclosed. The perfluoropolyethers are pyrolyzed generally at above about 350.degree. C. Volatile lower molecular weight components are condensed and collected. Various molecular weight fractions can be obtained by taking appropriate distillation cuts.
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