Patent ID: 8247359
Filing Date: 2012-08-21
Classification: C10L

Abstract:
1. A water-in-oil emulsion, useful as a fuel, coolant or lubricant, comprising from about 5 to about 40 wt % aqueous phase and from about 95 to about 60 wt % non-aqueous phase, said aqueous phase being dispersed in said non-aqueous phase in the form of droplets having an average droplet size no greater than about 0.1 μm, said emulsion consisting essentially of: at least 60 wt % of an oil selected from fuel oils, lubricating oils and mixtures thereof, from about 1 to about 20 wt % of emulsifying agents, and the balance to 100 wt % water, wherein said emulsifying agents include a fatty (C 8 -C 24 )-amido-(C 1 -C 6 ) alkyl betaine and said betaine comprises from about 0.5 up to about 15% by wt of the emulsifying agents employed in the microemulsion.