Spherical perfluoroethers

Details Spherical perfluoroethers Spherical perfluoroethers

1993-10-25

1995-08-29

Richter, Johann

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

Organic compounds

Oxygen containing

C07C 4100, C07C 4300

Patent

active

054462096

ABSTRACT:
Perfluoroethers having a spherical shape are described. The perfluoroethers can be represented by the formula ##STR1## wherein R.sub.f1, R.sub.f2, R.sub.f3 and R.sub.f4 are the same or different and are selected from short, straight or branched chain perfluoroalkyl or perfluoroether groups. R.sub.f1, R.sub.f2, R.sub.f3, or R.sub.f4 can also be; ##STR2## wherein R'.sub.f1 -R'.sub.f3 are defined as R.sub.f1 -R.sub.f3 above The perfluoropolyethers are designed to act like "molecular ball bearings" and have high thermal stability and lubrication properties. They are useful as stable fluids, heat transfer fluids, vapor phase soldering fluids and oxygen carriers.

REFERENCES:
patent: 2611787 (1952-09-01), Holm
patent: 2973389 (1961-02-01), Weissermel et al.
patent: 3435078 (1969-03-01), Nychka et al.
patent: 3962348 (1976-06-01), Benninger et al.
patent: 4113435 (1978-09-01), Lagow et al.
patent: 4510335 (1985-04-01), Lagow et al.
patent: 4523039 (1985-06-01), Lagow et al.
patent: 4788350 (1988-11-01), Lagow
Jones et al, Ind. Eng. Chem Res. 1988, 27, 1497-1502.
International Preliminary Examination Report for the corresponding parent application which has issued as U.S. Pat. 4,788,350.
Jones et al., "The Preparation of New Perfluoroether Fluids Exhibiting Excellent Thermal-Oxidative Stabilities", NASA Technical Memorandum 87284, Apr. 13-18, 1986.

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