Aminated polysulfone membrane and process for its preparation

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing

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Details

524127, 524145, 524284, 524297, 424 7808, 424 781, C08J 520

Patent

active

053766890

ABSTRACT:
A new process for preparing a separation membrane from aminated polysulfone resin or blends of aminated polysulfone-blended materials which utilizes an organic additive having a low or negligible water-solubility (instead of conventional water-soluble organics, polymers, or inorganic salts) in the casting solution. The resulting membrane exhibits high water-permeability and is capable of being formed at a high production rate when using a wet casting machine.

REFERENCES:
patent: 5180750 (1993-01-01), Sugaya et al.
patent: 5236643 (1993-08-01), Tseng et al.

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