发明授权
US4280970A Polyoxyethylene grafted membrane materials with grafting links derived
from a diisocyanate
失效
具有由二异氰酸酯衍生的接枝连接的聚氧乙烯接枝膜材料
- 专利标题: Polyoxyethylene grafted membrane materials with grafting links derived from a diisocyanate
- 专利标题(中): 具有由二异氰酸酯衍生的接枝连接的聚氧乙烯接枝膜材料
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申请号: US4828申请日: 1979-01-19
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公开(公告)号: US4280970A公开(公告)日: 1981-07-28
- 发明人: Robert E. Kesting
- 申请人: Robert E. Kesting
- 申请人地址: CA Tustin
- 专利权人: Puropore Inc.
- 当前专利权人: Puropore Inc.
- 当前专利权人地址: CA Tustin
- 主分类号: B01D67/00
- IPC分类号: B01D67/00 ; B01D69/12 ; B01D71/82 ; C08G18/40 ; C08G18/48 ; C08G18/64 ; C08G18/80 ; G01N27/40 ; B01D39/16 ; B01D39/18 ; B29D11/00 ; G02C7/04
摘要:
Membrane forming polymers are converted to hydrophilic polymeric membranes by (a) grafting a polyoxyethylene chain to a membrane forming polymer structure and thereafter forming a membrane; (b) coating a membrane with a polymer to which a polyoxyethylene chain has been grafted; or (c) grafting in situ a polyoxyethylene chain to a formed membrane polymer.
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