Lubricants having improved cohesiveness and adhesiveness

Claim 1

A COMPOSITION OF MATTER COMPRISING A MAJOR PORTION OF A MINERAL LUBRICATING OIL VEHICLE AND ABOUT 0.1 TO 10% BY WEIGHT OF THE POLYMERIZED AND ESTERIFIED REACTION PRODUCT OF (1) POLYEPOXY MONOMERS CONSISTING OF ONLY THE ELEMENTS CARBON, HYDROGEN AND OXYGEN, HAVING TERMINAL EPOXY GROUPS ATTACHED TO ADJACENT CARBON ATOMS, A MOLECULAR WEIGHT OF ABOUT 1000 TO 3000 AND AN EPOXIDE EQUIVALENT OF AT LEAST ABOUT 140, AND (2) COMPLEX POLYNUCLEAR AROMATIC CARBOXYLIC ACIDS DERIVED FROM SOLVENT EXTRACTS OBTAINED IN THE SOLVENT REFINING OF MINERAL LUBRICATING OILS WITH A SOLVENT SELECTIVE FOR AROMATIC COMPOUNDS BY METALATION OF SAID SOLVENT EXTRACTS TO FORM THE ALKALI METAL ADDUCT, CARBONATION OF SAID ADDUCT TO FORM THE CORRESPONDING ALKALI METAL SALT OF THE CARBOXYLIC ACID AND ACIDIFICATION OF SAID SALT TO FORM THE FREE CARBOXYLIC ACID CHARACTERIZED BY BEING COMPLEX, POLYNUCLEAR AROMATIC, ALKYL-AROMATIC ACIDS PREDOMINATING IN CARBON AND HYDROGEN, CONTAINING ABOUT 0.5 TO 4.5 WT. PERCENT OF SULPHUR, HAVING AMOLECULAR WEIGHT OF ABOVE ABOUT 300 AND HAVING 1.7 TO 3.5 AVERAGE NUMBER OF AROMATIC RINGS PER AROMATIC MOLECULE, SAID REACTION BEING CONDUCTED BY HEATING SAID POLYEPOXY MONOMER WITH ABOUT 10% TO 50% BY WEIGHT OF SAID COMPLEX CARBOXYLIC ACIDS, BASED ON THE WEIGHT OF SAID MONOMERS, AT A TEMPERATURE OF ABOUT 250* TO 370*F. IN THE PRESENCE OF A TERTIARY AMINE CATALYST.