Emulsifiers for Multiple Emulsions

A multiple water-in-oil-in-water emulsion composition comprising:

• (1) a discontinuous phase, wherein that discontinuous phase comprises a) a water discontinuous phase, b) an oil continuous phase, c) an emulsifier selected from the group consisting of a polyisobutenyl succinic anhydride-derived emulsifier(s), a polyisobutene derived emulsifier(s) and mixtures thereof, d) optionally a co-emulsifier and e) optionally thickeners for the discontinuous phase resulting in an internal water-in-oil emulsion;
• and
• (2) a continuous phase, wherein that continuous phase is an external aqueous phase comprising a) water b) the internal water-in-oil emulsion, c) an oil-in-water emulsifier and c) optionally thickeners for the external aqueous phase;
• and
• wherein the emulsifier is used in the range of about 0.1 wt. % to about 30 wt. % of the final multiple emulsion;
• and
• wherein the water phase of the internal water-in-oil emulsion is comprised of droplets having a mean diameter of about 0.1 to about 5 microns;
• resulting in a stable water-in-oil-in-water multiple emulsion.2