Lubricating compositions containing ashless catalytic antioxidant additives
The invention comprises lubricating compositions and hydraulic fluids containing substituted N,N′-diaryl-o-phenylenediamine compounds that impart good levels of oxidation inhibition in the lubricants and hydraulic fluids.
ExxonMobil Research and Engineering Company
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Abhimanyu O. Jacob J.
Patil Habeeb