Fire-resistant hydraulic fluid
AssigneeChevron Research Company
InventorsAlfred Goldschmidt, Robert A. Stayner
Life of this patent
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Abstract
A water-in-oil emulsion finding use as a stable functional fluid comprises about 19 to about 50 weight percent water, about 80 to about 49 weight percent mineral oil and a small amount of a hydrocarbyl-substituted succinic acid mono ester of a polyoxyethylene mono-ol. The mono-ol has an average molecular weight of about 200-1,000 and the hydrocarbyl substituent is from about 750 to about 2,000 average molecular weight.
Claims7
A water-in-oil emulsion finding use as a functional fluid comprises from about 19 to about 50 weight percent of water, from about 80 to about 49 weight percent of mineral oil and in an amount sufficient to stabilize said water-in-oil emulsion a hydrocarbyl-substituted succinic acid monoester of a polyoxyethylene mono-ol of average molecular weight from about 200 to about 1,000 terminated with an alkyl group of 1 to 5 carbon atoms, wherein said hydrocarbyl substituent is of from about 750 to about 2,000 average molecular weight.
Dependencies are inferred from the claim text.