Lubricant additive and composition containing same

Claim 1

AS A NEW COMPOSITION OF MATTER, THE OIL-SOLUBLE NEUTRALIZED ALKALINE EARTH AND BORON-CONTAINING COMPLEX OF THE REACTION PRODUCT OF A PHOSPHORUS SULFIDE AND A NORMALLY NON-GASEOUS HYDROCARBON, SAID NEUTRALIZED COMPLEX BEING OBTAINED BY THE PROCESS COMPRISING REACTING FROM ABOUT 1% TO ABOUT 50% OF A PHOSPHORUS SULFIDE AND A NORMALLY NON-GASEOUS HYDROCARBON AT A TEMPERATURE OF FROM ABOUT 150*F. TO ABOUT 500*F. UNDER NONHYDROLYZING CONDITIONS, ADDING FROM ABOUT 0.10 MOL TO ABOUT 3 MOLS OF A BORON COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID, BORIC ACID ANHYDRIDE AND A BORIC ACID ESTER PER MOL OF PHOSPHORUS, NEUTRALIZING THE RESULTANT MIXTURE WITH FROM ABOUT 1 MOL TO ABOUT 4 MOLS OF AN INORGANIC BASIC ALKALINE EARTH COMPOUND IN THE PRESENCE OF FROM ABOUT 0.20 MOL TO ABOUT 2 MOLS WATER AND FROM ABOUT 1 MOL TO ABOUT 10 MOLS OF AN ALKANOL HAVING NOT MORE THAN THREE CARBON ATOMS, PER MOL OF SAID BASIC ALKALINE EARTH COMPOUND WHILE HEATING THE MIXTURE AT A TEMPERATURE OF FROM ABOUT 100*F. TO ABOUT 180*F. UNDER REFLUX CONDITIONS, FOR A PERIOD OF FROM 1 HOUR TO ABOUT 10 HOURS, RAISING THE TEMPERATURE OF THE MIXTURE FROM ABOUT 300*F. TO ABOUT 400*F. AND FILTERING THE RESULTANT NEUTRALIZED COMPLEX PRODUCT.