Lubricants or lubricant additives composed of ionic liquids containing ammonium cations

Patent · Tue Jul 13 00:00:00 EDT 2010

OSTI ID:1013004

Qu, Jun ^[1]; Truhan, Jr; John, J ^[2]; Dai, Sheng ^[1]; Luo, Huimin ^[1]; Blau, Peter J ^[1]

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1. Knoxville, TN
2. Cookeville, TN

A lubricant or lubricant additive is an ionic liquid alkylammonium salt. The alkylammonium salt has the structure R.sub.xNH.sub.(4-x).sup.+,[F.sub.3C(CF.sub.2).sub.yS(O).sub.2].sub.2N.sup- .- where x is 1 to 3, R is independently C.sub.1 to C.sub.12 straight chain alkyl, branched chain alkyl, cycloalkyl, alkyl substituted cycloalkyl, cycloalkyl substituted alkyl, or, optionally, when x is greater than 1, two R groups comprise a cyclic structure including the nitrogen atom and 4 to 12 carbon atoms, and y is independently 0 to 11. The lubricant is effective for the lubrication of many surfaces including aluminum and ceramics surfaces.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• Assignee: UT-Battelle, LLC (Oak Ridge, TN) University of Tennessee Research Foundation (Knoxville, TN)
• Patent Number(s): 7,754,664
• Application Number: 11/533,098
• OSTI ID: 1013004
• Country of Publication: United States
• Language: English