Encapsulated active particles and methods for making and using the same
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United States of America Patent
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Jul 24, 2007
Grant Date -
Jan 29, 2004
app pub date -
Jun 12, 2003
filing date -
Jun 12, 2002
priority date (Note) -
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Abstract
The invention relates to preserving the properties of active particles through use of an encapsulant which may be removable. The encapsulant may protect the active particles against premature deactivation. If desired, the encapsulant may be removed to rejuvenate the active particles. Various processes can be implemented to introduce encapsulated particles to embedding substances which may be used in various products.
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