Spray drying
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United States of America Patent
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Aug 20, 2019
Grant Date -
Jun 14, 2018
app pub date -
May 25, 2016
filing date -
May 29, 2015
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Abstract
A method of preparing dry core-shell microcapsules from an aqueous dispersion of such capsules, comprising spraying the dispersion through a two-fluid air-liquid nozzle into a heated chamber having an upper part and a lower part, the spraying taking place in the upper part and the lower part being provided with a means of continuous capsule removal. The method allows the drying of capsules with considerably reduced losses.
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