Invention Grant
US09575036B2 Method for measuring encapsulation efficiency for hydrophobic actives
有权
测量疏水性活性物质的包封效率的方法
- Patent Title: Method for measuring encapsulation efficiency for hydrophobic actives
- Patent Title (中): 测量疏水性活性物质的包封效率的方法
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Application No.: US14429662Application Date: 2013-09-18
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Publication No.: US09575036B2Publication Date: 2017-02-21
- Inventor: Fanwen Zeng , Boris Polanuyer
- Applicant: ROHM AND HAAS COMPANY
- Applicant Address: US PA Philadelphia
- Assignee: Rohm and Haas Company
- Current Assignee: Rohm and Haas Company
- Current Assignee Address: US PA Philadelphia
- Agent Edward L. Brant
- International Application: PCT/US2013/060277 WO 20130918
- International Announcement: WO2014/047101 WO 20140327
- Main IPC: G01N30/02
- IPC: G01N30/02 ; G01N1/18 ; A61K8/11
Abstract:
Described are methods of determining free hydrophobic active in aqueous formulations including the steps of encapsulating a hydrophobic active, preparing a formulation containing encapsulated hydrophobic active, adding a cyclodextrin to the formulation, thereby entraining any free hydrophobic active; and quantifying the amount of free hydrophobic active.
Public/Granted literature
- US20150233871A1 METHOD FOR MEASURING ENCAPSULATION EFFICIENCY FOR HYDROPHOBIC ACTIVES Public/Granted day:2015-08-20
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