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US 4,194,983 AGranted
Perfluorinated polyalkylether based lubricant composition
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsKazimiera J. L. Paciorek, Reinhold H. Kratzer, Jacquelyn Kaufman, Thomas I. Ito, James H. Nakahara
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Abstract
A lubricant composition comprising a perfluorinated polyalkylether base fluid and a minor amount of a diphospha-s-triazine in which the two phosphorus atoms are substituted by aromatic groups and the carbon atom is substituted by a perfluoroalkyl or perfluoroalkylether moiety.
Claims10
A lubricant composition comprising (1) a perfluorinated polyalkylether base fluid and (2) a corrosion inhibiting amount of a diphospha-s-triazine having the following formula:
- ##STR6## wherein R.sub.f ' is a perfluoroalkyl or perfluoroalkylether group and R' and R" are the same or different aryl groups.
Dependencies are inferred from the claim text.