Cellulose granules for carrying functional substances
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United States of America Patent
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Mar 22, 2011
Grant Date -
Oct 1, 2009
app pub date -
Dec 21, 2007
filing date -
Dec 25, 2006
priority date (Note) -
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Abstract
Cellulose granules small enough such that they can be retained in a cigarette filter and capable of carrying sufficient amounts of volatile functional substance and vaporizing it easily. The cellulose granules are obtained from an extrusion granulating step and a spheronizing step, with smaller variability in particle diameter than that of conventional cellulose granules.
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