Production of fine-particle dye or drug preparations

Details Production of fine-particle dye or drug preparations Production of fine-particle dye or drug preparations

B - Operations, Transporting

01

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B01J 13/00 (2006.01) A61K 9/14 (2006.01) A61K 9/16 (2006.01) B01F 3/12 (2006.01) B01F 17/00 (2006.01) C09B 61/00 (2006.01) C09B 67/00 (2006.01) C09B 67/46 (2006.01)

Patent

CA 2130857

Abstract of the Disclosure: Process for the production of fine- particle, essentially amorphous dye or drug preparations by con- verting a relatively coarse-particle dispersion or a solution into a colloidal dispersion in water, where the colloidal disper- sion is generated at a temperature above the melting point of the dye or drug by admixing appropriately hot water (where appropri- ate under pressure) or an aqueous protective colloid solution so that an emulsion of a melt in aqueous medium is produced and is immediately spray-dried or converted by cooling into a suspen- sion.

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