High temperature lubricants containing cesium, robidium, and lit

Details High temperature lubricants containing cesium, robidium, and lit High temperature lubricants containing cesium, robidium, and lit

1993-01-19

1995-10-10

Nelson, Peter A.

Compositions

Electrolytes for electrical devices

252 41, 25240062, C10M11316

Patent

active

054568480

ABSTRACT:
In one respect, this invention is a lubricating composition which comprises a polyaryl ether lubricating fluid and an additive which is (a) cesium carbonate, (b) cesium phosphate, or (c) a benzoate of cesium, rubidium, or lithium wherein the additive is present in the lubricating composition in an amount effective to produce an antioxidative effect in the lubricating composition. In another respect, this invention is a process for reducing the rate of oxidation in a polyaryl ether lubricating fluid which comprises adding an additive wherein the additive is (a) cesium carbonate, (b) cesium phosphate, or (c) a benzoate of cesium, rubidium, or lithium to the polyaryl ether lubricating fluid in an amount effective to produce an antioxidative effect in the lubricating composition.

REFERENCES:
patent: 3213025 (1965-10-01), Hedenburg
patent: 3405072 (1968-10-01), Kinnavy
patent: 3492229 (1970-01-01), Weiss
patent: 3674822 (1972-07-01), Stemnisky
John Stemnisky et al., "Antixoidants for High-Temperature Lubricants," ASLE Transactions, 1964, vol. 7, pp. 43-54.
Harold Ravner et al., "Antioxidant Action of Metals and Metal-Organic Salts in Fluoroesters and Polyphenyl Ethers," Journal of Chemical and Engineering Data, vol. 8, No. 4, Oct. 1963, pp. 591-596.
H. Ravner et al., "High-Temperature Stabilization of Polyphenyl Ethers by Soluble Metal-Organic Salts," ASLE Transactions, 1975, vol. 18, pp. 1-4.
H. Ravner et al., "High-Temperature Stabilization of Polyphenyl Ethers By Inorganic Salts," ASLE Transactions, 1972, vol 15, pp. 45-53.

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