Patent classifications
C10M133/56
Succinimide dispersants post-treated with aromatic glycidyl ethers that exhibit good soot handling performance
A lubricating oil composition is described. The composition includes a base oil, a first succinimide dispersant composition comprising a reaction product of a hydrocarbyl succinimide and an aromatic glycidyl ether having a structure: ##STR00001##
wherein R.sub.1 is an aryl or alkaryl group having 4 to 20 carbon atoms, and R.sub.2 and R.sub.3 are independently a hydrogen atom, an alkyl group, or an aryl group; and a second succinimide dispersant.
SAPS-free twin-tail amine derivatives additives for lubricant for friction modification and wear prevention
The present invention relates to the use as an antiwear additive (antiwear component) and friction modifier in a lubricant of at least one compound having the following formula (I) wherein: each of R and R, which are identical of different, is a aliphatic group preferably containing between 5 and 23 carbon atoms; and a and b are integers from 0 to 4; and A is a methylene group CH.sub.2; or a carbonyl group C(O). ##STR00001##
SAPS-free twin-tail amine derivatives additives for lubricant for friction modification and wear prevention
The present invention relates to the use as an antiwear additive (antiwear component) and friction modifier in a lubricant of at least one compound having the following formula (I) wherein: each of R and R, which are identical of different, is a aliphatic group preferably containing between 5 and 23 carbon atoms; and a and b are integers from 0 to 4; and A is a methylene group CH.sub.2; or a carbonyl group C(O). ##STR00001##
FRICTION MODIFIER FOR WET CLUTCH
A lubricating oil composition is disclosed. The composition includes a major amount of an oil of lubricating viscosity and one or more dispersant friction modifiers given by Structure A,
##STR00001##
R.sub.1, and R.sub.3 are independently a linear or branched-chain monovalent hydrocarbyl radical of 4 to 100 carbon atoms; x is from 1 to 3; and y is from 1 to 3; R.sub.2 is a linear or branched-chain monovalent hydrocarbyl radical of 4 to 100 carbon atoms or hydrogen; and at least one of R.sub.1, R.sub.2, and R.sub.3 is a polyisobutenyl group having a molecular weight of 500 or greater.
FRICTION MODIFIER FOR WET CLUTCH
A lubricating oil composition is disclosed. The composition includes a major amount of an oil of lubricating viscosity and one or more dispersant friction modifiers given by Structure A,
##STR00001##
R.sub.1, and R.sub.3 are independently a linear or branched-chain monovalent hydrocarbyl radical of 4 to 100 carbon atoms; x is from 1 to 3; and y is from 1 to 3; R.sub.2 is a linear or branched-chain monovalent hydrocarbyl radical of 4 to 100 carbon atoms or hydrogen; and at least one of R.sub.1, R.sub.2, and R.sub.3 is a polyisobutenyl group having a molecular weight of 500 or greater.