초록

A lubricating oil containing polytetrafluoroethylene particles and a fluorochemical surfactant which stabilizes the dispersion and creates a molecular surface tension skin on the surface of the oil to reduce volatilization losses during use in an internal combustion engine.

대표청구항 ▼

A lubricant for use in the crankcase of an internal combustion engine and in similar applications, said lubricant comprising: (A) lubricating oil providing a working lubricant applicable to the metal rubbing surfaces of the engine, said oil having particles of polytetrafluoroethylene dispersed there

A lubricant for use in the crankcase of an internal combustion engine and in similar applications, said lubricant comprising: (A) lubricating oil providing a working lubricant applicable to the metal rubbing surfaces of the engine, said oil having particles of polytetrafluoroethylene dispersed therein to enhance its lubricating characteristics; and (B) a fluorochemical-surfactant to stabilize the dispersion to prevent agglomeration of the particles, the amount of said surfactant being an excess of that necessary to stabilize the dispersion to a degree creating a molecular surface tension skin on the surface of the lubricating oil to reduce volatilization losses of the oil when the lubricant is heated to a high temperature in the course of engine operation.