Glass encapsulated materials

Details Glass encapsulated materials Glass encapsulated materials

A - Human Necessities

61

M

128/104, 167/154

A61M 35/00 (2006.01) A61K 9/00 (2006.01) A61K 9/28 (2006.01) A61M 31/00 (2006.01) C03C 3/16 (2006.01) C03C 4/00 (2006.01) G01N 27/416 (2006.01)

Patent

CA 1167345

Abstract of the Disclosure A device for the controlled release of an active material into a liquid medium comprised a liquid soluble body having an array of cavities therein containing the active material. The body may be enclosed in a casing of a material having a relatively low dissolution rate and provided with means, e.g. an aperture whereby a portion of the body can be exposed to dissolving attack by the liquid medium. The body is so constructed that the cavity contents are released sequentially and as a predetermined rate.

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