Lubricating grease and method of preparing same

Claim 1

A LUBRICATING COMPOSITION WHICH IS NORMALLY RELATIVELY LIQUID AND MOBILE AND WHICH HAS THE PROPERTY OF SETTING UP TO A SOLID GREASE CONSISTENCY UPON BEING SUBJECTED TO MECHANICAL WORKING, SAID COMPOSITION CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING OIL CONTAINING GREASE-FORMING PROPORTIONS OF A SOAP-SALT THICKENER PREPARED BY MIXING ABOUT ONE MOLAR PROPORTION OF FATTY ACID OF THE C12 TO C22 RANGE, AT LEAST ONE-HALF MOLAR PROPORTION OF C2 TO C4 FATTY ACID, AND AN ALKALI METAL HYDROXIDE INTO SAID OIL, HEATING SAID MIXTURE WITH CONTINUED STIRRING TO A TEMPERATURE OF AT LEAST 450*F. TO OBTAIN A FINE DISPERSION OF SAID SOAP-SALT IN SAID OIL, COOLING WITH STIRRING TO A TEMPERATURE RANGE OF ABOUT 200* TO 250*F., AND THEREAFTER PERMITTING THE COMPOSITION TO COOL WITHOUT FURTHER WORKING.