发明授权
- 专利标题: Positively charged polyvinylidene fluoride membrane
- 专利标题(中): 带正电的聚偏二氟乙烯膜
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申请号: US64229申请日: 1993-05-11
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公开(公告)号: US5282971A公开(公告)日: 1994-02-01
- 发明人: Peter J. Degen , Joseph Lee
- 申请人: Peter J. Degen , Joseph Lee
- 申请人地址: NY East Hills
- 专利权人: Pall Corporation
- 当前专利权人: Pall Corporation
- 当前专利权人地址: NY East Hills
- 主分类号: A61K9/08
- IPC分类号: A61K9/08 ; A61K31/135 ; A61P27/02 ; B01D61/14 ; B01D67/00 ; B01D71/34 ; B01D63/08
摘要:
A filter medium comprising a microporous polyvinylidene fluoride membrane and a polymer containing positively charged quaternary ammonium groups covalently bonded to the membrane, and a method of using the filter medium to treat a composition, particularly a biological or pharmaceutical composition such as an ophthalmic composition.
公开/授权文献
- US5974744A Column protector apparatus 公开/授权日:1999-11-02
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