Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Patent
1992-04-24
1993-05-11
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
424488, 424489, 424499, 424 68, 424642, 4284022, 514781, 514951, A01N 2512, A01N 5916, A61K 914
Patent
active
052099326
ABSTRACT:
Liquefiable and porous powder compositions are disclosed for the delivery of topical foot-care preparations. In particular, microporous cellulosic powders, such as cellulose acetates or nitrates, are disclosed as high liquid-content vehicles for the delivery of foot-care preparations. The resulting powders permit the application of the foot-care preparation by simply rubbing or otherwise applying the formulation onto the skin in such a manner that the powder liquefies and appears to vanish. Upon application, the frangible liquid-loaded cellulosic powders break up into minute particles that do not pass easily beyond the initial layers of the skin, but do permit the slow release of the foot-care preparation for absorption into the skin.
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Engellenner Thomas J.
Levy Neil
Maslow James E.
Moleculon, Inc.
Page Thurman K.
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