To provide a lubricant base oil which can satisfy both of viscosity-temperature characteristic and low-temperature viscosity characteristic in a high level, a method for producing the same, and a lubricant composition containing the lubricant base oil.
The lubricant base oil is a hydrocarbon-based lubricant base oil having a urea adduct value of 4 mass%, a viscosity index of 100 and an average carbon number, obtained from gas chromatography distillation, of 27-31, wherein in the range of 0-50 ppm of the 13C-NMR spectrum thereof, the value given by dividing an integral of a peak at 30 ppm by an integral of all peaks is 0.1-0.2, and in the range of 0-50 ppm of the 13C-NMR spectrum, the product of the value given by diving an integral of a peak attributed to a tertiary carbon atom by an integral of all peaks and the average carbon number is 1.8-2.5.
MATSUI SHIGEKI
| JP2008013684A | 2008-01-24 | |||
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| JP2008013681A | 2008-01-24 | |||
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| JP2002503755A | 2002-02-05 | |||
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| WO2005090528A1 | 2005-09-29 |
Yoshiki Kuroki
Yoshinori Shimizu