Invention Grant
- Patent Title: Gradual release structures made from fiber spinning techniques
- Patent Title (中): 由纤维纺丝技术制成的逐渐释放结构
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Application No.: US918897Application Date: 1992-07-21
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Publication No.: US5364627APublication Date: 1994-11-15
- Inventor: Joo H. Song
- Applicant: Joo H. Song
- Applicant Address: IL Chicago
- Assignee: Wm. Wrigley Jr. Company
- Current Assignee: Wm. Wrigley Jr. Company
- Current Assignee Address: IL Chicago
- Main IPC: A23L27/00
- IPC: A23L27/00 ; A01N25/34 ; A23G4/00 ; A23G4/06 ; A23G4/20 ; A61K9/70 ; A61L15/44 ; C11B9/00 ; D01F1/10 ; D06M23/02 ; D06M101/00 ; D06M101/02 ; D06M101/10 ; D06M101/16 ; D06M101/18 ; D06M101/32 ; A61F13/00
Abstract:
A delivery system and a process for making the system is provided for the gradual release of an active agent. The system comprises an active agent and a wall material. The delivery system is formed by melt spinning a mixture of particles of active agent and wall material into a fiber. The fiber has a longitudinal dimension and a cross sectional dimension, the cross sectional dimension being no greater than about 1 mm. The fiber has an exterior surface. The particles of active agent are dispersed throughout the wall material such that the particles of active agent are gradually released from the fiber when the fiber is contacted with a solvent specific to the active agent.
Public/Granted literature
- US5966486A Tilted notched for passive optical alignment Public/Granted day:1999-10-12
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