发明授权
- 专利标题： Melt-spun polysulfone semipermeable membranes and methods for making the same
- 专利标题（中）： 熔融聚砜半透膜及其制备方法
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申请号： US10327564申请日： 2002-12-20
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公开(公告)号： US07144505B2公开(公告)日： 2006-12-05
- 发明人: Wenli Han , Martin Ketterer , Jonnie Lee , Thanh Nguyen , George Washington , Delores Jordan , Dibyendu De
- 申请人： Wenli Han , Martin Ketterer , Jonnie Lee , Thanh Nguyen , George Washington , Delores Jordan , Dibyendu De
- 申请人地址： US IL Deerfield CH Zurich
- 专利权人： Baxter International Inc.,Baxter Healthare S.A.
- 当前专利权人： Baxter International Inc.,Baxter Healthare S.A.
- 当前专利权人地址： US IL Deerfield CH Zurich
- 代理商 Gina M. Bicknell; Ted J. Barthel
- 主分类号： B01D39/00
- IPC分类号： B01D39/00 ; B01D39/14 ; B01D33/21
摘要：
The present invention provides, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising a polysulfone semipermeable membrane, the polysulfone semipermeable membrane comprising a mixture of: an ultra-high-molecular-weight hydrophilic polymer, a polysulfone compound and a solvent for the polysulfone compound, and the polysulfone semipermeable membrane having a homogeneous structure such that the polysulfone semipermeable membrane has a substantially uniform structure. Another aspect of this invention discloses methods for fabricating semipermeable membranes by homogeneously mixing the composition, melting the composition, and melt-spinning the molten composition. Another aspect of the present invention includes homogeneous, melt-spun, semipermeable membranes useful for liquid separation processes, such as, but not limited to, microfiltration, ultrafiltration, dialysis, and reverse osmosis.
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