Microencapsulation process
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United States of America Patent
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Jun 21, 1983
Grant Date -
N/A
app pub date -
Oct 6, 1980
filing date -
Oct 6, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Microcapsules laden with an active agent are prepared by a method comprising: (a) dissolving or dispersing an active agent in a solvent and dissolving a wall forming material in said solvent; (b) dispersing said solvent containing said active agent and wall forming material in a continuous-phase processing medium; (c) evaporating a portion of said solvent from said dispersion of step (b), thereby forming microcapsules containing said active agent in the suspension; and (d) extracting the remainder of the solvent from said microcapsules.
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