Perfluorinated aliphatic polyalkylether lubricant with an additive composed of an aromatic phosphine substituted with perfluoroalkylether groups

摘要

A lubricant composition comprising a base fluid having the general formula C3F7[CF(CF3)CF2O]nCF2CF3 wherein n has a value ranging from 5 to 50, and a corrosion-inhibiting amount of an aromatic phosphine with perfluorinated polyalkylether substituents having the general formula <IMAGE> wherein RfORf- is a perfluoroalkylether group containing at least one ether linkage.