Lubricants and fluids containing thiocarbamates and phosphonates

摘要

Oil based compositions including a compound of the structure R1R2N - C(X)S - (CR3R4)aY, where R1, R2, R3, and R4 are hydrogen or hydrocarbyl groups, X is oxygen or sulfur, Y is an activating group such as an ester, and a is 1 or 2; a sulfur-containing phosphonic acid or a salt thereof, and optionally a surfactant, exhibit good anti-wear performance.