Lubricant having improved oxidation resistance

Claim 1

A COMPOUND CONSISTING ESSENTIALLY OF AT LEAST ABOUT 20 PERCENT OF MINERAL LUBRICATING OIL; (A) FROM ABOUT 0.1 PERCENT TO ABOUT 79 PERCENT BY WEIGHT OF AN OIL-SOLUBLE CALCIUM SULFONATE; (B) FROM ABOUT 0.1 PERCENT TO ABOUT 79 PERCENT BY WEIGHT OF AN OIL-SOLUBLE BARIUM SALT OF AN ACIDIC COMPOSITION SELECTED FROM THE CLASS CONSISTING OF SULFONIC ACIDS AND PHOSPHORUS ACIDS DERIVED FROM THE REACTION OF A REACTANT SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC HYDROCARBONS AND CHLORINATED ALIPHATIC HYDROCARBONS WITH AN INORGANIC PHOSPHORUS REAGENT SELECTED FROM THE CLASS CONSISTING OF PHOSPHORUS HALIDES AND PHOSPHORUS SULFIDES; (C) FROM ABOUT 0.01 PERCENT TO ABOUT 4 PERCENT BY WEIGHT OF ANTHRANILIC ACID; AND (D) FROM ABOUT 0.01 PERCENT TO ABOUT 40 PERCENT BY WEIGHT OF A CALCIUM PHENATE COMPOUND PREPARED BY THE PROCESS COMPRISING THE STEPS OF REACTING A MIXTURE COMPIRSING 1 MOLE OF ANALKYL PHENOL AND FROM ABOUT 1 TO ABOUT 2 MOLES OF THE FORMALDEHYDE PRODUCING REAGENT IN THE PRESENCE OF A CATALYST AT A TEMPERATURE OF FROM ABOUT 10*C. TO ABOUT 99*C. AND THEREAFTER REACTING SAID MIXTURE WITH A CALCIUM REAGENT SELECTED FROM THE CLASS CONSISTING OF CALCIUM HYDROXIDE AND CALCIUM OXIDE AT A TEMPERATURE OF AT LEAST ABOUT 30*C.