Method for making very fine particles consisting of a principle inserted in a host molecule
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United States of America Patent
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Nov 6, 2007
Grant Date -
Jun 24, 2004
app pub date -
Oct 19, 2001
filing date -
Oct 19, 2000
priority date (Note) -
Expired
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Abstract
The invention concerns a method for making very fine particles containing at least an active principle inserted in a host molecule and a device for implementing said method. The method is characterized in that it consists in forming a solution of the active principle in a first liquid solvent and of a product formed by the host molecules in a second liquid solvent, then in contacting the resulting solutions with a supercritical pressure fluid, so as to precipitate the host molecules which are dissolved therein.
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