Process for the preparation of biologically active material containing polymeric microcapsules
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United States of America Patent
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Feb 14, 1995
Grant Date -
N/A
app pub date -
Feb 16, 1993
filing date -
Feb 18, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the preparation of microcapsules containing biologically active material is disclosed. The process involves dissolving a polymer into a solvent into which the active material is also introduced; atomizing the resulting suspension or solution and collecting the droplets in a non-solvent for the polymeric droplets containing active material, resulting in coagulation. Subsequently, the coagulated droplets are hardened in a second non-solvent.
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