Abstract: The invention provides process for making contra-soluble nano-dispersions of at most sparingly-soluble materials in a soluble carrier material comprising the steps of: (i) providing a single phase mixture of: (a) a solvent or a mixture of miscible solvents wherein at least one of the solvents is an aqueous solvent and at least another solvent is a non-aqueous solvent, (b) at least one carrier material soluble in solvent (a), said carrier material being also contra-soluble to payload material (c) and solid at ambient temperature, (c) at least one a payload material which is soluble in solvent (a), and, (ii) freeze-drying the mixture to remove solvent (a) and thereby obtain the carrier material (b) in solid form with payload (c) dispersed therein as nanoparticles.

Abstract: The invention provides process for making water-soluble nano-dispersions of water-insoluble materials in a water-soluble carrier material comprising the steps of: (i) providing a single phase mixture of: (a) a non-aqueous solvent or a mixture of miscible non-aqueous solvents, (b) at least one carrier material soluble in non-aqueous solvent (a), said carrier material being also soluble in water and solid at ambient temperature, (c) at least one water-insoluble payload material which is soluble in non-solvent (a), and, (ii) drying the mixture to remove solvent (a) and thereby obtain the carrier material (b) in solid form with payload (c) dispersed therein as nanoparticles, wherein the product of the drying step is water dispersible to give an aqueous solution of (b) and an aqueous nano-dispersion of (c).

Abstract: The present invention provides a substantially solvent-free nano-dispersion of an active in a carrier, wherein the carrier comprises an enteric carrier soluble at intestinal pH, but insoluble at stomach pH, and wherein the enteric carrier comprises at least 50% by weight of the nano-dispersion; and processes for the preparation of a substantially solvent-free nano-dispersion of an active in a carrier.

Abstract: A process for the production of a soluble composition comprising a water-insoluble active which comprises either the steps of: a) providing a liquid mixture comprising: i) a dissolved water-insoluble active, ii) a dissolved water-soluble carrier, iii) a solvent for each of the active and the carrier, and b) spray-granulating the mixture to remove the, or each, solvent and obtain a substantially solvent-free nano-dispersion of the water-insoluble active in the carrier said water-insoluble active being in nano-particles having a size range of 999-20 nm; or, the steps of: a) providing a substantially solvent-free powder comprising a water-insoluble active dispersed in a water soluble carrier, said water-insoluble active being in nano-particles having a size range of 999-20 nm, and, b) spray-granulating the powder to obtain larger and denser particles. The invention also relates to solvent-free, granular products with a particle size in the range 20 microns to 10 mm and a bulk-density of greater than 0.

Abstract: The invention provides process for making contra-soluble nano-dispersions of at most sparingly-soluble materials in a soluble carrier material comprising the steps of: (i) providing a single phase mixture of: a) a solvent or a mixture of miscible solvents, b) at least one carrier material soluble in solvent (a), said carrier material being also contra-soluble to payload material (c) and solid at ambient temperature, c) at least one a payload material which is soluble in solvent (a), and, (ii) drying the mixture to remove solvent (a) and thereby obtain the carrier material (b) in solid form with payload (c) dispersed therein as nanoparticles.