Phosphazene derivatives and use of same as stabilizers for oils

Details Phosphazene derivatives and use of same as stabilizers for oils Phosphazene derivatives and use of same as stabilizers for oils

1995-05-19

1997-02-11

Richter, Johann

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

Organic compounds

Phosphorus esters

558154, 558157, C07F 9659, C07F 96581, C07F 924

Patent

active

056022700

ABSTRACT:
New phosphazene derivatives, fully substituted by aromatic groups and perfluoropolyethereal chains, are utilized as stabilizers for oils and greases based on perfluoropoyethers. Such derivatives inhibit the degradation process affecting the perfluoropolyethereal chains when these are subjected to high temperatures in an oxidizing atmosphere and in the presence of metals, such as for example aluminium, titanium, vanadium and their alloys, or steels.

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