Process for milling and preparing powders and compositions...

Details Process for milling and preparing powders and compositions... Process for milling and preparing powders and compositions...

2006-06-30

2011-12-13

Ross, Dana (Department: 3725)

Solid material comminution or disintegration

Processes

By utilizing kinetic energy of projected or suspended material

Reexamination Certificate

active

08074906

ABSTRACT:
A method of milling a powder comprising introducing a gas stream containing a cryogenic liquid and a drug carrier gas into a jet mill, and milling a powder with the jet mill in one or more milling passes. A product produced by the method. A milling apparatus comprising a cryogenic gas input system, a powder feeder, a main jet-mill, and at least one output port for collecting the powder.

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