发明授权
- 专利标题: Reverse osmosis membranes of polyamideurethane
- 专利标题(中): 聚氨酯反渗透膜
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申请号: US586038申请日: 1990-08-31
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公开(公告)号: US5085777A公开(公告)日: 1992-02-04
- 发明人: Samuel D. Arthur
- 申请人: Samuel D. Arthur
- 申请人地址: DE Wilmington
- 专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人地址: DE Wilmington
- 主分类号: B01J31/02
- IPC分类号: B01J31/02 ; B01D69/12 ; B01D71/54 ; B01D71/56 ; C07B61/00 ; C07C67/00 ; C07C67/14 ; C07C68/02 ; C07C69/96 ; C08G71/00
摘要:
The present invention is directed to an improved reverse osmosis membrane that shows surprisingly improved solute rejection and permeation properties. The membrane includes a separating layer of a polyamideurethane formed in situ by reaction of a haloformyloxy-substituted acyl haldide with a diamine-treated substrate.
公开/授权文献
- US5908896A Organic aerogel microspheres 公开/授权日:1999-06-01
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