Lithium soap grease additive

Details Lithium soap grease additive Lithium soap grease additive

1984-10-01

1985-08-20

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 41, 252 464, 252 499, C10M 148, C10M 154

Patent

active

045363080

ABSTRACT:
An experimental grease has been formulated with 8.5 wt % lithium 12-hydroxystearate in a base oil containing an additive composition of a synergistic blend of zinc dialkyldithiophosphates, zinc diamyldithiocarbamate, aromatic amine phosphate, sulfurized sperm oil substitute and the reaction product of coconut oil and diethanolamine.
The lithium 12-hydroxystearate grease has been prepared by a standard kettle procedure. The grease composition exhibits a dropping point in the range expected of a lithium complex grease. The grease keeps its soap fiber structure intact at 390.degree. to 400.degree. F., typical of the melting range of lithium 12-hydroxystearate greases.
The grease is useful for its long life in constant velocity joints.

REFERENCES:
Smalheer et al., "Lubricant Additives" 1967 Chap. 1.
Boner, "Lubricating Greases" 1954 pp. 450-451.

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