Ionic beads useful for controlled release and adsorption

Details Ionic beads useful for controlled release and adsorption Ionic beads useful for controlled release and adsorption

C - Chemistry, Metallurgy

08

L

C08L 33/14 (2006.01) A61K 9/16 (2006.01) A61K 9/18 (2006.01) A61K 47/32 (2006.01) A61K 47/48 (2006.01) A61Q 19/00 (2006.01) C08L 25/18 (2006.01)

Patent

CA 2121687

2121687 9307862 PCTABS00021 Ionic compositions comprise an active ingredient absorbed within a network of internal pores defined by a plurality of polymeric particles. The particles are preferably crosslinked polymeric beads having a diameter in the range from about 5 to 100 microns and a surface charge density from about 0.1 to 10 meq/qm hydrogen ion capacity. The active ingredients are released from the ionic polymer beads over time when orally administered, applied to a keratinic material, typically human skin or hair or otherwise delivered to a target environment. The use of a cationic charge promotes adhesion of the beads to the keratinic material.

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