| 摘要 |
Extreme pressure (EP) additives of the general formula (R<I-V>-Arb)c(Sx)d, wherein R<I>, R<II>, R<III>, R<IV> and R<V> are the same or different and each represents a hydrogen atom, a C1-40 straight or branched chain or cyclic, saturated or unsaturated hydrocarbyl group or a derivative thereof; Ar stands for a monocyclic or polycyclic aromatic hydrocarbyl group or a derivative thereof; b means a number from 1 to 5; c means a number from 2 to 10; d means a number from 1 to 9; and x means a number from 1 to 6, are useful for the preparation of auxiliary materials for lubricating and hydraulic oils, lubricating greases as well as for metal-working coolant and lubricating fluids. |
