发明授权
US5603948A Active ingredient patch for low-melting and/or volatile active
ingredients
失效
用于低熔点和/或挥发性活性成分的活性成分贴剂
- 专利标题： Active ingredient patch for low-melting and/or volatile active ingredients
- 专利标题（中）： 用于低熔点和/或挥发性活性成分的活性成分贴剂
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申请号： US483312申请日： 1995-06-07
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公开(公告)号： US5603948A公开(公告)日： 1997-02-18
- 发明人: Hans P. Merkle , Klaus Nagels , Dietrich Schacht , Hans-Michael Wolff
- 申请人： Hans P. Merkle , Klaus Nagels , Dietrich Schacht , Hans-Michael Wolff
- 申请人地址： DEX Monheim
- 专利权人： Schwarz Pharma AG
- 当前专利权人： Schwarz Pharma AG
- 当前专利权人地址： DEX Monheim
- 优先权： DEX4224325.4 19920723; WOXPCT/DE93/00638 19930717
- 主分类号： A61K9/70
- IPC分类号： A61K9/70 ; A61L15/58 ; A61F13/02
摘要：
A method of preparing a patch for the controlled release of readily available volatile active substances to the skin is disclosed. The patch comprises a back layer, and, bonded to the back layer, a water-insoluble adhesive film consisting of a pressure-sensitive fusion adhesive, plus a detachable film covering the adhesive film. The pressure-sensitive fusion adhesive contains a triple-block copolymer of polystyrene block copoly(ethylene/butylene) block polystyrene at a concentration of 10 to 80% by wt., and an active substance at a concentration of 2.5 to 25% by weight, which is a readily volatile liquid at the temperature at which the adhesive bonds.
公开/授权文献
- US5019201A External-circuit connecting method and packaging structure 公开/授权日：1991-05-28
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