发明授权
- 专利标题： Fluorinated polymer purification
- 专利标题（中）： 氟化聚合物纯化
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申请号： US340136申请日： 1999-06-28
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公开(公告)号： US6072020A公开(公告)日： 2000-06-06
- 发明人: Vincenzo Arcella , Giulio Brinati , Patrizia Maccone
- 申请人： Vincenzo Arcella , Giulio Brinati , Patrizia Maccone
- 申请人地址： ITX Milano
- 专利权人： Ausimont S.p.A.
- 当前专利权人： Ausimont S.p.A.
- 当前专利权人地址： ITX Milano
- 优先权： ITXMI98A1505 19980630
- 主分类号： C08J3/00
- IPC分类号： C08J3/00 ; B01D61/14 ; C08F6/06 ; C08F6/16 ; C08F14/18 ; C08G63/00
摘要：
Purification process of amorphous polymers comprising the following steps:a) the amorphous polymer is dissolved in a fluorinated solvent;b) the solution containing the polymer is microfiltered by semipermeable membranes having a porosity in the range 0.05-0.5 .mu.m, and the permeate forms the polymeric solution purified by contaminants in suspension;c) the permeate coming from b) is ultrafiltered/nanofiltered by membranes with porosity in the range 10-500 kDa, and the retentate is formed by the polymeric solution purified from the contaminants in solution.
公开/授权文献
- US5620887A Transcriptional cofactor DCoH 公开/授权日：1997-04-15
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