Polymeric amides for multifunctional VI improvers.

摘要

A terpolymer for use as a multifunctional VI improver particularly for lubricating oils has the formula: <CHEM> wherein n = 0 to 12; x is about 15 to about 75 mole percent; y is about 25 to about 85 mole percent; z is about 0.1 to about 10 mole percent; R1 and R3 equal H, C1-C10 alkyl, alkyl amino, alkylpolyamino, alkyl amino ether, alkyl amino alcohol groups and R2 is an alkyl grou having about 1 to about 8 carbon atoms.