| 摘要 |
Compounds suitable for use as extreme pressure (EP)/anti-wear (AW) agents in lubricating oil compositions, which compounds have the formula:- R<1> - S - X - S - S - R (I) wherein R<1> is either R-S- or hydrogen, R is independently either hydrocarbyl or substituted hydrocarbyl, and X comprises a heterocyclic ring having six atoms of which two are nitrogen atoms. |
