| abstract |
Lubricating oil compositions for use in lubricating the slideway of a machine tool or injection moulding machine. n The lubricating oil composition comprises (a) a base oil, (b) one or more friction reducing agents preferably selected from phosphoric acid esters or their alkyl ammonium salts, phosphorous acid esters and fatty acids, and (c) one or more linear alkyl amines. n Preferably, the amount of the friction reducing agent(s) (b) is 0.05 to 10.0% by weight based on the amount of the base oil (a) and the amount of the linear alkyl amine(s) (c) is 0.1 to 20.0% by weight based on the amount of the friction reducing agent(s) (b). |