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

Polyoxyethylene grafted membrane materials with grafting links derived
from a diisocyanate
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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