EXTREME-PRESSURE ADDITIVE, FRICTION COEFFICIENT MODIFIER AND FUNCTIONAL FLUIDS

摘要

An extreme pressure agent and a friction coefficient modifier which comprises a compound having, in a molecule, a group represented by general formula (I): wherein R<1>, R<2>, and R<3> each represents hydrogen atom or methyl group, and at least one of R<2> and R<3> represents hydrogen atom; a fluid resistant to seizure under load and a wear resistant fluid which each comprises the above additive or the above modifier; and a wear resistant fluid which comprises the above compound. The extreme pressure agent and the friction coefficient modifier have excellent properties and are advantageously used for lubricating oil, metal working oil, and hydraulic oil.