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US 11,091,718 B2Granted
Ionic liquid containing divalent cation and monovalent anion and lubricant composition comprising same
AssigneesSK Innovation Co., Ltd., SK Lubricants Co., Ltd.
InventorsSang Hye Shin, Ha Na Song, Yu Na Shim, Sun Ae Hwang
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Abstract
Disclosed are an ionic liquid, having wear resistance maintained at low temperatures and containing a divalent cation including at least one of bis(ammonium) and bis(phosphonium) and a monovalent anion including at least one of sulfonate and phosphate, and a lubricant composition including the ionic liquid.
Claims12
An ionic liquid, comprising:
- a divalent cation comprising at least one of bis(ammonium) and bis(phosphonium);
- and
- a monovalent anion comprising sulfonate
- wherein the sulfonate has a structure of Chemical Formula 6 below:
- wherein in Chemical Formula 6, R1 and R2 are each independently hydrogen, (C1-C20)hydrocarbyl, substituted (C1-C20)hydrocarbyl, (C1-C20)heterohydrocarbyl, or substituted (C1-C20)heterohydrocarbyl.
2 more elements
Dependencies are inferred from the claim text.