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    • 74. 发明授权
    • Fragranced water-sensitive film
    • 香水敏感膜
    • US08927617B2
    • 2015-01-06
    • US12164539
    • 2008-06-30
    • Sarah A. FunkJames H. Wang
    • Sarah A. FunkJames H. Wang
    • A61L9/01A61F13/84B29C47/00B29C47/10C08J5/18C08L3/02B29C47/88B29C47/92A61L9/012B29K105/00
    • C08J5/18A61F13/8405A61L9/012B29C47/0021B29C47/0026B29C47/1063B29C47/1081B29C47/8845B29C47/8855B29C47/8865B29C47/887B29C47/8875B29C47/92B29C2947/92704B29K2105/0029C08J2303/02C08J2303/06C08J2303/08C08J2329/04C08K5/05C08K2201/007C08L3/02C08L3/06C08L3/08C08L29/04C08L67/00C08L2203/16Y10T428/31855
    • A film formed from a water-soluble polymer matrix within which is contained at least one fragrance is provided. The film is water-sensitive (e.g., water-soluble, water-dispersible, etc.) so that upon contact with a sufficient amount of water, the polymer matrix loses its integrity over time to increasingly expose the fragrance to the ambient environment for releasing its odor. The ability to incorporate a fragrance into the polymer matrix is achieved in the present invention by controlling a variety of aspects of the film construction, including the nature of the fragrance, the nature of the water-soluble polymer, the manner in which the polymer matrix and fragrance are melt processed, etc. For example, the fragrance may be injected directly into the extruder and melt blended with the water-soluble polymer. In this manner, the costly and time-consuming steps of pre-encapsulation or pre-compounding of the fragrance into a masterbatch are not required. Furthermore, to obtain a balance between the ability of the fragrance to release the desired odor during use and likewise to minimize the premature exhaustion of the odor during melt processing, the fragrance is selected to have a boiling point (at atmospheric pressure) within a certain range, such as from about 125° C. to about 350° C.
    • 提供由其中含有至少一种香料的水溶性聚合物基质形成的膜。 该膜具有水敏性(例如水溶性,水分散性等),使得在与足量的水接触时,聚合物基体随时间失去其完整性,以使香料逐渐暴露于周围环境以释放 其气味 通过控制膜结构的各个方面,包括香料的性质,水溶性聚合物的性质,聚合物基质的性质,在本发明中实现将香料引入聚合物基质中的能力 并且香料被熔融加工等。例如,香料可以直接注入挤出机中并与水溶性聚合物熔融共混。 以这种方式,不需要将预先包封或预混合成母料的昂贵且耗时的步骤。 此外,为了获得香料在使用期间释放所需气味的能力之间的平衡,并且同样使熔体加工期间气味的过早耗尽最小化,香味被选择为在一定程度上具有沸点(大气压) 范围,例如约125℃至约350℃