| 摘要 |
PURPOSE:A lubricant composition having a low pour point, improved high-temperature stability, viscosity characteristics, and low-temperature characteristics, obtained by blending a specific polyether compound with an antioxidant in a specified ratio. CONSTITUTION:The desired lubricant composition containing (A) 90-99.9wt% compound shown by the formula I or formula II (R<1> is 1-28C monofunctional hydrocarbon; R<2> is 1-26C bifunctional hydrocarbon; R<3> is 1-28C b-functional hydrocarbon; R<4> is 1-27C monofunctional hydrocarbon; m is 2-4; a is 2-100; b is 1-8) and (B) 0.1-10wt% antioxidant. A combination of 20-80wt% aryl (thio)amine and 80-20wt% zinc dialkyl dithiophosphate is preferable as the component B. |
