Grease composition and method of manufacture

Claim 1

THE METHOD IN THE MANUFACTURE OF A SMOOTH SOFT SODIUM MYRISTATE BALL AND ROLLER BEARING GREASEOF BUTTERY NON-FIBROUS TEXTURE, WHICH COMPRISES MIXING A QUANTITY OF LOW MOLECULAR WEIGHT FATTY ACIDS CONTAINING AT LEAST 70% BY WEIGHT OF MYRYSTIC ACID WITH A SMALL AMOUNT OF DISTILLATE MINERAL LUBRICATING OIL LESS THAN THE QUANTITY OF FATTY ACIDS CHARGED BUT EQUIVALENT TO AT LEAST ABOUT ONE-HALF OF THE WEIGHT OF THE FATTY ACIDS, AND ALSO WITH A SMALL AMOUNT OF WATER ROUGHLY EQUIVALENT TO THE AMOUNT OF LUBRICATING OIL, SPECIFIED ABOVE, AGITATING THE MIXTURE AT A MILDLY ELEVATED TEMPERATURE OF ABOUT 170-190* F. WITH THE ADDITION OF AN EXCESS OF AN AQUEOUS SODIUM HYDROXIDE SOLUTION TO EFFECT SAPONIFICATION OF THE FATTY ACIDS AND PROVIDE IN TH FINAL PRODUCT A FREE ALKALI CONTENT IN THE RANGE OF 0.05-1.0% BY WEIGHT, THEN HEATING THE RESULTING SAPONIFIED MASS WITH CONTINUED AGITATION AT 295-320* F. FOR AT LEAST TWO HOURS BEFORE OIL ADDITION IS STARTED TO EFFECT DEHYDRATION TO A WATER CONTENT LESS THAN 0.5% BY WEIGHT ON THE BASIS OF THE FINAL PRODUCT, THEN ADDING ADDITIONAL MINERAL LUBRICATING OIL IN TWO STAGES WITH CONTROL OF TEMPERATURE OF THE MASS AND CONTINUED AGITATION. THE FIRST STAGE OF OIL ADDITION BEING WHILE THE MASS GRADUALLY COOLS FROM THE SAID DEHYDRATION TEMPERATURE BUT IS MAINTAINED ABOVE 260* F. AND WHEREIN THE AMOUNT OF OIL ADDED IS SUFFICIENT TO BRING THE TOTAL LUBRICASTING OIL CONTENT OF THE MASS TO AT LEAST TWICE THE WEIGHT OF THE FATTY ACIDS INITIALLY CHARGED, AND THE SECOND STAGE OF OIL ADDITION BEING AT TEMPERATURES BELOW 260* F. TO BRING THE MASS OF THE CONSISTENCY DESIRED, AND THEN DRAWING AS A FINAL PRODUCT A SMOOTH SOFT GREASE OF A BUTTERY NON-FIBROUS TEXTURE HAVING A SOAP CONTENT IN EXCESS OF 15% BUT LESS THAN 25% BY WEIGHT ON THE BASIS OF THE FINAL PRODUCT, SAID GREASE HAVING A DROPPING POINT IN EXCESS OF 400* F., AND POSSESSING THE PROPERTY OF SATISFACTORY LUBRICATING BALL AND ROLLER BEARINGS AT TEMPERATURES ABOVE 300* F.

Claim 2

THE METHOD IN THE MANUFACTURE OF A SMOOTH SOFT SODIUM MYRISTATE BALL AND ROLLER BEARING GREASEOF BUTTERY NON-FIBROUS TEXTURE, WHICH COMPRISES MIXING A QUANTITY OF LOW MOLECULAR WEIGHT FATTY ACIDS CONTAINING AT LEAST 70% BY WEIGHT OF MYRYSTIC ACID WITH A SMALL AMOUNT OF DISTILLATE MINERAL LUBRICATING OIL LESS THAN THE QUANTITY OF FATTY ACIDS CHARGED BUT EQUIVALENT TO AT LEAST ABOUT ONE-HALF OF THE WEIGHT OF THE FATTY ACIDS, AND ALSO WITH A SMALL AMOUNT OF WATER ROUGHLY EQUIVALENT TO THE AMOUNT OF LUBRICATING OIL, SPECIFIED ABOVE, AGITATING THE MIXTURE AT A MILDLY ELEVATED TEMPERATURE OF ABOUT 170-190* F. WITH THE ADDITION OF AN EXCESS OF AN AQUEOUS SODIUM HYDROXIDE SOLUTION TO EFFECT SAPONIFICATION OF THE FATTY ACIDS AND PROVIDE IN TH FINAL PRODUCT A FREE ALKALI CONTENT IN THE RANGE OF 0.05-1.0% BY WEIGHT, THEN HEATING THE RESULTING SAPONIFIED MASS WITH CONTINUED AGITATION AT 295-320* F. FOR AT LEAST TWO HOURS BEFORE OIL ADDITION IS STARTED TO EFFECT DEHYDRATION TO A WATER CONTENT LESS THAN 0.5% BY WEIGHT ON THE BASIS OF THE FINAL PRODUCT, THEN ADDING ADDITIONAL MINERAL LUBRICATING OIL IN TWO STAGES WITH CONTROL OF TEMPERATURE OF THE MASS AND CONTINUED AGITATION. THE FIRST STAGE OF OIL ADDITION BEING WHILE THE MASS GRADUALLY COOLS FROM THE SAID DEHYDRATION TEMPERATURE BUT IS MAINTAINED ABOVE 260* F. AND WHEREIN THE AMOUNT OF OIL ADDED IS SUFFICIENT TO BRING THE TOTAL LUBRICASTING OIL CONTENT OF THE MASS TO AT LEAST TWICE THE WEIGHT OF THE FATTY ACIDS INITIALLY CHARGED, AND THE SECOND STAGE OF OIL ADDITION BEING AT TEMPERATURES BELOW 260* F. TO BRING THE MASS OF THE CONSISTENCY DESIRED, AND THEN DRAWING AS A FINAL PRODUCT A SMOOTH SOFT GREASE OF A BUTTERY NON-FIBROUS TEXTURE HAVING A SOAP CONTENT IN EXCESS OF 15% BUT LESS THAN 25% BY WEIGHT ON THE BASIS OF THE FINAL PRODUCT, SAID GREASE HAVING A DROPPING POINT IN EXCESS OF 400* F., AND POSSESSING THE PROPERTY OF SATISFACTORY LUBRICATING BALL AND ROLLER BEARINGS AT TEMPERATURES ABOVE 300* F.