| abstract |
PURPOSE: To prepare a new lubricant and the subject composition composed by mixing a lubricant, a hydraulic fluid, a diphenylamine series compd. and an S-contg. hydrocarbon compd. and having high storage stability and actional stability. n CONSTITUTION: The objective lubricant and composition are composed by mixing (A) a lubricant, (B) a hydraulic fluid and (C) a compd. expressed by formula I [R 1 to R 1 ' are H, a 1-24C alkyl, a 5-12C cycloalkyl or a 1-4C phenylalkyl; (n) is 0 to 2] and (D) a compd. shown by formula II or III {R 2 and R 3 are each H, a 1-24C alkyl, phenyl or the like; R 4 is a 4-18C alkyl, phenyl, tolyl or the like; R 4 ' is a (1-12C alkyl-substituted) 1-18C alkylene; Y is O or S]. Furthermore, as the suitable example for the component C, 4,4'-di-tertiary octyl diphenylamine or the like are cited, and as the suitable example for the component D, thioketal compds. or the like are cited. n COPYRIGHT: (C)1989,JPO |