Characteristic properties of cutting fluid additives made from the derivatives of some polymeric nonionic surface-active agents

A series of esters was prepared from the reaction of acid chlorides with polymeric nonionic surface-active agents (copolymer of propylene oxide and ethylene oxide), and they were screened for antirust and other properties associated with water-based cutting fluids. An aqueous emulsion of an adduct of triethanolamine and the oleic acid ester of polymeric nonionic surface-active agent showed excellent antirust properties when used as a water-based cutting fluid. The emulsion of triethanolamine and the mono nonyl ether of the surface-active agent also showed antirust properties.