发明授权
- 专利标题: Application of film forming technology to fragrance control release systems; and resultant fragrance control release systems
- 专利标题(中): 成膜技术应用于香水控释系统; 并产生香味控制释放系统
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申请号: US09893386申请日: 2001-06-27
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公开(公告)号: US06703011B2公开(公告)日: 2004-03-09
- 发明人: Adi Shefer , Shmuel David Shefer , Michael John Robert White
- 申请人: Adi Shefer , Shmuel David Shefer , Michael John Robert White
- 主分类号: A61L904
- IPC分类号: A61L904
摘要:
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 woven or non-woven fabric substrate; or a solid surface or human epidermis.
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