| abstract |
Disclosed is a lubricant base oil which is excellent in lubricity, sludge solubility, low viscosity and low temperature characteristics, while realizing low volatility. Specifically disclosed is a lubricant base oil which mainly contains a diester or triester synthesized from a divalent or trivalent carboxylic acid having 9 or less carbon atoms and a monovalent glycol ether such as an alkyleneglycol monoalkyl ether having 3-25 carbon atoms or the like. This lubricant base oil is used as a base oil for liquid lubricants and grease lubricants. Examples of suitable diesters may include di(hexyloxyethyl) adipate and the like. |