Compositions, concentrates, lubricant compositions, fuel composition and methods for improving fuel economy of internal combustion engines.

摘要

Succinimide derivatives represented by the formula: <CHEM> wherein X is selected from <CHEM> <CHEM> wherein R is a hydrocarbon-based group containing from about 8 up to about 35 carbon atoms, R1 and R2 are each independently hydrogen or an alkyl group containing up to 8 carbon atoms; and R3 is a hydrocarbon-based group containing up to about 28 carbon atoms.