FRICTIONAL FORCE INCREASING AGENT FOR LUBRICATING OIL

摘要

PURPOSE:To obtain the subject agent having specific chemical structure and such function as to raise the coefficient of friction between two members, thus useful for wet-type disc multidisc clutches, etc. CONSTITUTION:This frictional force increasing agent consists of a substituted succinimide of the formula (at least one of R1-R4 except R2 is a group derived from a cyclic compound and the rest including R2 is at least either aliphatic hydrocarbon group or H).