Encapsulated active material immobilized in hydrogel microbeads

Details Encapsulated active material immobilized in hydrogel microbeads Encapsulated active material immobilized in hydrogel microbeads

A - Human Necessities

01

N

A01N 25/28 (2006.01) A61K 8/04 (2006.01) A61K 8/11 (2006.01) A61K 8/73 (2006.01) A61K 8/88 (2006.01) A61K 9/50 (2006.01) A61Q 19/00 (2006.01) B01J 13/00 (2006.01) B01J 13/14 (2006.01)

Patent

CA 2386887

A microbead comprising a hydrophilic matrix having active-filled microcapsules entrained therein. Compositions comprising the microbeads suspended in solution are useful for delivering active material. The microbeads of the invention may be controllable by exposing the microbeads to high or low humidity or moisture.

L'invention concerne une microperle comprenant une matrice hydrophile renfermant des microcapsules remplies de matière active entraînées. Des compositions comprenant des microperles mises en suspension dans une solution sont utilisées pour libérer la matière active. Les microperles de la présente invention peuvent être réglées par exposition à un taux d'humidité faible ou élevé.

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