Drug – bio-affecting and body treating compositions – Topical body preparation containing solid synthetic organic... – Skin cosmetic coating
Patent
1995-04-11
1999-02-16
Gardner-Lane, Sally
Drug, bio-affecting and body treating compositions
Topical body preparation containing solid synthetic organic...
Skin cosmetic coating
424401, 424 7011, 424489, 514951, 264 43, 264 433, A61K 700, A61K 900
Patent
active
058717226
ABSTRACT:
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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Cheng Tai
Eury Robert P.
Froix Michael
Katz Martin A.
Liau Christine J.Y.
Advanced Polymer Systems, Inc.
Gardner-Lane Sally
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