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|1. (WO2017040965) LUBRICANT COMPOSITION|
UNIVERSITY OF OTTAWA
DERY, Mary, Elizabeth
SHUM, Sai, P.
ODORISIO, Paul, Angelo
PRATT, Derek, Andrew
HAIDASZ, Evan, Antony
A lubricant composition includes a base oil present in an amount of greater than 70 parts by weight per 100 parts by weight of the lubricant composition and an antioxidant. The antioxidant has the structure: wherein each X is independently CH or N, so long as at least one X is N, wherein Y is CRR', NR", PR", S, or O, each R, R' and R" is independently H, alkyl or aryl, and R" is alkyl, aryl, alkoxy or aryloxy. Each A is independently an electron donating group. The electron donating group (1) has an atom having at least one lone pair of electrons that is bonded directly to the aromatic ring, (2) is an aryl or alkyl group, or (3) is a hydrogen atom.