发明授权
US06232303B1 Process for preparing a hyaluronic acid fraction having a low polydispersion index
有权
具有低多分散指数的透明质酸级分的制备方法
- 专利标题： Process for preparing a hyaluronic acid fraction having a low polydispersion index
- 专利标题（中）： 具有低多分散指数的透明质酸级分的制备方法
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申请号： US09426536申请日： 1999-10-26
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公开(公告)号： US06232303B1公开(公告)日： 2001-05-15
- 发明人: Lanfranco Callegaro , Davide Renier
- 申请人： Lanfranco Callegaro , Davide Renier
- 优先权： ITPD95A0244 19951220
- 主分类号： A61K3170
- IPC分类号： A61K3170
摘要：
A process for preparing a hyaluronic acid fraction having an average molecular weight comprised between 5000 and 300,000 and a polydispersion index lower than 1.7, comprising treating the starting high molecular weight hyaluronic acid, contemporaneously with sodium hypochlorite and ultrasounds.
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