Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Heterocyclic ring compound; a heterocyclic ring is one...
Patent
1998-02-13
2000-02-22
Johnson, Jerry D.
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Heterocyclic ring compound; a heterocyclic ring is one...
508463, 508504, C10M14104, C10M12966
Patent
active
060280387
ABSTRACT:
An extreme pressure lubricant additive system, is provided for use in lubricating metal wear surfaces, such as the transmission or engine of an automobile. The additive system is added to the oil reservoir of the transmission, engine or the like. The additive system includes in combination, a naphthenic base oil, a chlorinated methyl ester, a methyl ester anti-wear additive, and an acid scavenger. The extreme pressure lubricant additive system is present in a minor quantity and said lubricating oil is present in a major quantity, on a weight percent basis. The naphthenic base oil is from about 15 to 30 percent of said additive system, and preferably from about 18 to 25 percent of the additive system. The methyl ester anti-wear additive is from about 2 to 7 percent of the additive system, and preferably 4 to 6 percent of said system. The chlorinated methyl ester is present in the range from about 50 to 90 percent, and preferably in the range from about 60 to 80 percent. About 1 to about 3 percent of an epoxidized soy bean oil is employed in the system, as an acid scavenger and/or stabilizer, preferably in an amount from about 1.5 to about 2.5 percent of the additive system. More preferably the acid scavenger is from about 1 to about 3 percent of an epoxidized triglyceride.
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Johnson Jerry D.
Parker Sheldon H.
Stewart Charles L.
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