Method and apparatus for production of microcapsules
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United States of America Patent
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Nov 6, 1984
Grant Date -
N/A
app pub date -
Apr 27, 1982
filing date -
Apr 27, 1982
priority date (Note) -
Expired
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Abstract
Apparatus for continuously producing microcapsules which comprises at least one inner pipe for extruding a material to be encapsulated, at least one outer pipe for extruding an encapsulating material, the outer pipe being coaxially arranged around the inner pipe, means for delivering the material to be encapsuled to the inner pipe, means for delivering the encapsulating material to the outer pipe, at least one capsule-forming cylinder through which a coaxial jet flow of the material to be encapsulated and encapsulating material flows downwardly and through which a coagulating agent is forced to flow downwardly, a closed chamber which contains the coagulating agent and in which the capsule-forming cylinder is arranged vertically and means for delivering the coagulating agent to the chamber, which produces up to about 50,000 microcapsules per second per a set of the inner and outer pipes and the capsule forming cylinder.
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