发明授权
US06423820B1 Process for purifying and reusing solvent used to remove extractables
失效
纯化和再利用用于除去可萃取物的溶剂的方法
- 专利标题： Process for purifying and reusing solvent used to remove extractables
- 专利标题（中）： 纯化和再利用用于除去可萃取物的溶剂的方法
-
申请号： US09667902申请日： 2000-09-22
-
公开(公告)号： US06423820B1公开(公告)日： 2002-07-23
- 发明人: Madhu Ayyagari , Erik M. Indra , Mahendra P. Nandu
- 申请人： Madhu Ayyagari , Erik M. Indra , Mahendra P. Nandu
- 主分类号： C08J300
- IPC分类号： C08J300
摘要：
A process for treating biomedical devices, especially contact lenses, involves contacting polymeric devices containing extractables with a solvent that dissolves and thereby removes the extractables from the device, treating the solvent to remove extractables from the solvent, thereby purifying the solvent, and using the purified solvent to remove additional extractables from polymeric devices.
信息查询
