Pyrolysis of perfluoropolyethers

Details Pyrolysis of perfluoropolyethers Pyrolysis of perfluoropolyethers

1987-09-03

1990-01-16

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568600, 568601, 568603, 568604, 568606, 562851, C07C 4101, C07C 4330, C07C 434

Patent

active

048944840

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.

REFERENCES:
patent: 3242218 (1965-03-01), Miller
patent: 3847978 (1974-11-01), Sianesi et al.
patent: 4523039 (1985-06-01), Lagow et al.
patent: 4755330 (1988-07-01), Viola et al.
Gerhardt et al, J. Chem. Soc. Perkins Trans, I. 1981, pp. 1321-1328.

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