Multi component moisture triggered controlled release system...

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form

Reexamination Certificate

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Details

C424S401000, C424S491000, C424S496000, C424S498000

Reexamination Certificate

active

07067152

ABSTRACT:
The present invention relates to cosmetic formulations comprising a multi component controlled release system that imparts long lasting cooling sensation and/or provides high odor or flavor intensity (i.e., high impact fragrance or flavor burst) in response to moisture. The controlled delivery system of the present invention is substantially free-flowing powder formed of solid hydrophobic nano-spheres that are encapsulated in a moisture sensitive micro-spheres.

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patent: WO 9828398 (1998-07-01), None

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