Stabilizers with arylphosphinic structure for perfluoro-polyethe

Details Stabilizers with arylphosphinic structure for perfluoro-polyethe Stabilizers with arylphosphinic structure for perfluoro-polyethe

1986-04-23

1987-07-21

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

568 16, 568 17, C10M13714

Patent

active

046816933

ABSTRACT:
New products having the structure of arylphosphines or of derivatives of arylphosphines with an oxygen or sulphur atom directly bonded to the phosphorus atom, containing perfluoroalkylether chains, characterized in that such chains are bonded to the benzene ring through a non-perfluorinated bridge, and are obtained by a process substantially decreasing their production costs, and suitable to be used as stabilizers of perfluoropolyether oils and greases to prevent their degradation in the presence of metals, and the corrosion of the same metals, such as, e.g., Al, Ti, V, or their alloys, when operating in oxidizing and high-temperature environments.

REFERENCES:
patent: 3393151 (1968-07-01), Dolle et al.
patent: 3483129 (1969-12-01), Dolle et al.
patent: 4431556 (1984-02-01), Christian et al.
patent: 4438007 (1984-03-01), Snyder, Jr. et al.
patent: 4454349 (1984-06-01), Lamborski et al.

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