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. |