Methods for preparing dry powders having hydrophobic and hydrophilic components comprise combining solutions of the components and spray drying them simultaneously in a spray dryer. The hydrophilic and hydrophobic component are separately dissolved in separate solvents and directed simultaneously through a nozzle, usually a coaxial nozzle, into the spray dryer. The method provides dry powders having relatively uniform characteristics.

Os métodos para preparar os pós secos que têm componentes hydrophobic e hydrophilic compreendem combinar soluções dos componentes e da secagem de pulverizador eles simultaneamente em um secador do pulverizador. O componente hydrophilic e hydrophobic é dissolvido separada em solventes separados e dirigido simultaneamente através de um bocal, geralmente um bocal coaxial, no secador do pulverizador. O método fornece os pós secos que têm características relativamente uniformes.

 
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