Patent ID: 7744909

Claim:
A supersaturated dispersion which comprises: an oily phase; an aqueous phase, in the form of an oil-in-water emulsion or a water-in-oil emulsion; and at least one active ingredient that is only slightly or with difficulty soluble in the oily phase and the aqueous phase, wherein the dispersion is free from toxicologically dangerous organic solvents and the dispersion is supersaturated containing the active ingredient dissolved in a quantity that is at least 5 times greater than the quantity which results additively from its maximum solubility in the oily and the aqueous phase of the emulsion, said dispersion obtained by combining; the aqueous phase, the oily phase, which oily phase is not or only partially miscible with the aqueous phase, the surfactant or stabilizer, and a solid phase, which comprises the one active ingredient, to form a pre-dispersion, wherein the active ingredient is suspended in at least a portion of the aqueous phase before contacting the active ingredient with the oily phase, which pre-dispersion of liquid and solid phases is subjected to a high-energy homogenization process wherein no toxicologically dangerous solvents are used, and wherein at least one of the at least one active ingredient is incorporated as solid particles into the liquid phases of the dispersion without previously being dissolved, the at least one active ingredient is pulverized to form particles, the particles of active ingredient are triturated or mixed with an oil-in-water emulsion or a water-in-oil emulsion to form the pre-dispersion, or the at least one active ingredient is pulverized to form particles, the particles of active ingredient are added to a surfactant solution, said surfactant solution is homogenized and mixed with an oil-in-water emulsion or a water-in-oil emulsion to form the pre-dispersion.