Lubricant composition using ionic liquid as base oil and having excellent rust prevention properties
AssigneeKyodo Yushi Co., Ltd.
InventorsMakoto Hayama, Setsuo Sasaki
Life of this patent
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Abstract
The invention provides a lubricant composition containing (A) an ionic liquid having an anion represented by formula 1: (Rf1-SO2) (Rf2-SO2) N− or formula 2: (Rf3) (Rf3) (Rf3) PF3− wherein Rf1 and Rf2 in formula 1 may be the same or different and are each F, CF3, C2F5, C3F7 or C4F9, and Rf3 in formula 2 may be the same or different and is CF3, C2F5, C3F7 or C4F9; and (B) a fatty acid amine salt in an amount of 0.1 to 5.0 mass %, The lubricant composition of the invention can favorably be used under a high vacuum or an ultra high vacuum, or under high temperatures, and exhibits excellent rust prevention properties.
Claims7
A lubricant composition comprising;
- (A) an ionic liquid having an anion represented by formula 1 or formula 2:
- (Rf1-SO2) (Rf2-SO2)N− (formula 1)
- (Rf3) (Rf3) (Rf3) PF3− (formula 2)
- wherein Rf1 and Rf2 in formula 1 may be the same or different and are each F, CF3, C2F5, C3F7 or C4F9, and Rf3 in formula 2 may be the same or different and is CF3, C2F5, C3F7 or C4F9, and
- (B) a fatty acid amine salt in an amount of 0.1 to 5.0 mass %.
Dependencies are inferred from the claim text.