Abstract
A process for the production of particles comprises the steps of formation of a solution of a desired substance in a suitable solvent; ii)generation of an aerosol from the solution of said substance; iii) collection of the aerosol droplets in a vessel containing a non-solvent of said substance; and iv) application of ultrasound to the droplets dispersed in the non-solvent to effect crystallisation of said substance. The particles produced find application in for example pharmaceutical and agrochemical formulations, especially in inhalation formulations.
Original language | English |
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Patent number | WO2004073827A1 |
IPC | A61K9/16,B01D9/00,C30B7/00 |
Priority date | 21/02/03 |
Filing date | 19/02/04 |
Publication status | Published - 2 Sept 2004 |