Application of film forming technology to fragrance control rele

Drug – bio-affecting and body treating compositions – Anti-perspirants or perspiration deodorants

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Details

424 763, 512 1, A61K 732, A61K 746

Patent

active

060633654

ABSTRACT:
Described is a fragrance control release system which is an emulsifier-free, single phase, nonporous, continuous, permeable polymeric film having a substantially uniform thickness of from about 1 up to about 150 microns, having entrapped and dissolved therein molecules of at least one fragrance substance capable of evolving from said film into the environment proximate said film by means of molecular diffusion at a permeation rate of from about 1.times.10.sup.-7 up to about 0.1 mg-mm/cm.sup.2 -min in a sustained and controlled release manner. Also described is a process for using the aforementioned system for imparting a fragrance into the environment above the unobstructed outer surface of the aforementioned polymer film which is coated on the surface of a solid or semi-solid support, e.g., a solid surface or human epidermis.

REFERENCES:
patent: 4668430 (1987-05-01), Schmolka
patent: 4803195 (1989-02-01), Holzner, I
patent: 5733560 (1998-03-01), Davister et al.

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