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

1996-10-30

1998-01-06

Ambrose, Michael G.

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

Organic compounds

Phosphorus esters

558 75, 558 76, 558 77, 558 81, 558 84, 558 93, C07F 9659, C07F 96581, C07F 924

Patent

active

057056684

ABSTRACT:
New phosphazene derivatives, fully substituted by aromatic groups and perfluoropolyethereal chains, are utilized as stabilizers for oils and greases based on perfluoropolyethers. 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.

REFERENCES:
patent: 3214478 (1965-10-01), Milian
patent: 3242218 (1966-03-01), Miller
patent: 3665041 (1972-05-01), Sianesi et al.
patent: 3715378 (1973-02-01), Sianesi et al.
patent: 3810874 (1974-05-01), Mitsch et al.
patent: 3847978 (1974-11-01), Sianesi et al.
patent: 4194983 (1980-03-01), Paciorek et al.
patent: 4454349 (1984-06-01), Tamborski et al.
patent: 4523039 (1985-06-01), Lagow et al.
patent: 4601843 (1986-07-01), Carr et al.
patent: 4681693 (1987-07-01), Gavezotti et al.
patent: 4814372 (1989-03-01), Caporiccio et al.
patent: 4864047 (1989-09-01), Bezoari
patent: 5013405 (1991-05-01), Kar et al.
patent: 5099055 (1992-03-01), Kar et al.
patent: 5219477 (1993-06-01), Nader et al.
European Search Report dated Feb. 21, 1994 for EP 93 11 7770 with Annex.
"Development and Tribological Properties of New Cyclotriphospazene High Temperature Lubricants for Aircraft Gas Turbine Engines," Nader B.S. , Kar, K.K., Morgan, T.A., Pawloski, C.E., and Dilling, W.L., Tribology Transactions, vol. 35, pp. 37-44 (1992).

Affiliated with

Also associated with

Rating

Phosphazene derivatives and use of same as stabilizers for oils does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phosphazene derivatives and use of same as stabilizers for oils , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phosphazene derivatives and use of same as stabilizers for oils will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2330205