| abstract |
(57) [Summary] [Structure] Neopentyl type polyol and the following (a) and (b) Neopentyl type polyol ester with mixed fatty acid of (1) and lubricating oil containing the same (a) straight chain saturated fatty acid having 6 to 8 carbon atoms (b) branched saturated fatty acid having 6 to 8 carbon atoms (having 6 to 8 carbon atoms) However, the mixing weight ratio of (a) and (b) is 90:10 to 65: 3. It is 5. [Effect] The lubricating oil containing the neopentyl type polyol ester of the present invention is excellent in thermal oxidation stability, pour point as well as low vaporization property and low temperature fluidity, and is excellent in engine oil, turbine oil, hydraulic oil and refrigeration. Used as machine oil, metalworking oil, etc., Suitable for various engine oils. |