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 1×10−7 up to about 0.1 mg-mm/cm2-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.
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机译：描述了一种香料控制释放系统，其是无乳化剂的单相，无孔，连续，可渗透的聚合物膜，其具有从约1到约150微米的基本均匀的厚度，并截留并溶解了至少一种香料的分子。能够通过分子扩散以约1 x 10 Sup负7 sups至约0.1 mg-mm / cm 的渗透率从所述薄膜演变为邻近所述薄膜的环境的物质2 -min持续控释。还描述了一种使用上述系统将芳香剂引入到上述聚合物膜的无障碍外表面上方的环境中的方法，该聚合物膜被涂覆在固体或半固体支持物的表面上，例如固体表面或人表皮。 。
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