Patent ID: 6569819
Filing Date: 2003-05-27
Classification: C10M,C10N

Abstract:
A lubricant composition which comprises a lubricant base oil, and (A) a mono substituted amide type bissuccinimide in an amount from 0.5 to 20 percent by mass represented by formula (1) R5 and R6 are each independently a straight-chain or branched alkyl or alkenyl group having 40 to 400 carbon atoms, and a and b are each independently an integer of 1 to 5, below or derivatives thereof, wherein R1, R2, R3, and R4 are each independently selected from the group consisting of hydrogen, an alkyl or alkenyl group having 1 to 24 carbon atoms, and an alkoxy group having 1 to 24 carbon atoms, R5 and R6 are each independently a straight-chain or branched alkyl or alkenyl group having 40 to 400 carbon atoms, and a and b are each independently an integer of 1 to 5, (B) zinc dithiophosphate in an amount from 0.05 to 0.3 percent by mass of phosphorus, and (C) a metal-based detergent in an amount from 0.5 to 4.0 percent by mass of sulfated ash, based on the total mass of the composition.