| abstract |
LUBRICATING OIL AND/OR LIQUID FUEL COMPOSITIONS CONTAIN OIL-SOLUBLE AZO COMPOUNDS. THE AZO COMPOUNDS IMPART TO THE COMPOSITIONS IMPROVED DISPERANT CHARACTERISTICS, CORROSION INHIBITION AND ANTI-WEAR PROPERTIES. THE PREDOMINANT OIL-SOLUBLE AZO REACTION PRODUCT MAY BE REPRESENTED BY THE FOLLOWING FORMULAS: Y-C(=X)-NH-N(-R)-C(=X)-Y, OR Z-(OOC-NH-N(-R)-COO-E)N WHEREIN R REPRESENTS AN OIL-SOLUBILIZING, SYNTHETIC, POLYMERIC ORGANIC RADICAL CONTAINING AT LEAST 20 CARBON ATOMS, Y IS INDEPENDENTLY SELECTED FROM THE GROUP CONSISTING OF -OR1-NR2R3 AND -SR4. R1,R2,R3 AND R4 ARE INDEPENDENTLY SELECTED FROM HYDROGEN, ALKYL, CYCLOALKYL, ARYL, ALKARYL AND ARALKYL, X IS INDENPENDENTLY SELECTED FROM OXYGEN, SULFUR AND =NR5, WITH PROVISO THAT WHEN X IS =NR5, Y IS -NR2R3, R5 IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, CYCLOALKYL, ARYL AND ALKARYL. Z REPRESENTS A POLYVALENT ORGANIC RADICAL HAVING A VALENCE OF " AND SELECTED FROM HYDROCARBON, OXXAHYDROCARBON, AZAHYDROCARBON AND THIAHYDROCARBON RADICALS AND THEIR OXYGENATED AND HALOGENATED DERIVATIVES, E IS A MONOVALENT RADICAL SELECTED FROM ALKYL, CYCLOALKYL, ARALKYL, ARYL AND ALKARYL, AND N IS AN INTEGER FROM 2 TO 5. |