| 摘要 |
<p>A lubricating oil composition in which a base oil containing compound (A) and compound (B) below is compounded with a compound (C), the kinematic viscosity at 40°C being 20 to 40 mm2/s, the density at 15°C being 1.1 g/cm3 or higher, the flashpoint being 200°C or higher, and the coefficient of viscosity being 100 or higher. (A) an ester or ether compound having two or more aromatic rings; (B) an ester or ether compound having a kinematic viscosity at 40°C of 12 mm2/s or less, a density at 15°C of 0.9 g/cm3 or higher, and a flashpoint of 100°C or higher; and (C) poly(meth)acrylate with a mass average molecular weight of 50,000 or less.</p> |
