Suspensions in aqueous media

1. A suspension comprising liquid droplets dispersed in an aqueous medium, wherein said droplets comprise

(a) one or more water-insoluble compounds, and

(b) a vinyl polyelectrolyte (PED) having a polarity, and

wherein said aqueous medium comprises a polyelectrolyte (PEW) having a polarity that is opposite to the polarity of said polyelectrolyte (PED).

2. The suspension of claim 1 , wherein the suspension has a pH of 5 to 10.

3. The suspension of claim 1 , wherein said polyelectrolyte (PED) has negative polarity and said polyelectrolyte (PEW) has positive polarity.

4. The suspension of claim 1 , wherein said polyelectrolyte (PED) comprises polymerized units of ionic monomer in an amount of 3 mole % to 12 mole %.

5. The suspension of claim 1 , wherein said polyelectrolyte (PEW) comprises polymerized units of ionic monomer in an amount of 40 mole % to 100 mole %.

6. A method of making a suspension comprising

(A) providing a non-aqueous solution comprising

(a) one or more water-insoluble compounds (A)(a), and

(b) a vinyl polyelectrolyte (PED) having a polarity,

(B) providing an aqueous solution comprising a polyelectrolyte (PEW) dissolved in an aqueous medium, wherein the polyelectrolyte (PEW) has a polarity opposite to the polarity of the polyelectrolyte (PED),

(C) forming a mixture by bringing the non-aqueous solution (A) into contact with the aqueous solution (B), and

(D) agitating the mixture to produce a suspension of droplets in an aqueous medium, wherein the droplets comprise the water-insoluble compounds (A)(a).