Separation membrane comprising polyethersulfone, process for producing thereof, and dope solution for membrane production
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsMasaki Tsuzawa, Hideto Matsuyama
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Abstract
A dope solution for membrane production comprising polyethersulfone having high strength, high water permeability, a high rejecting ability and excellent contamination resistance, a separation membrane, and a process for producing the separation membrane are provided. The dope solution for membrane production contains a polyethersulfone and a solvent for thermally induced phase separation selected from the group consisting of 3-pyridinemethanol, 4-methyl-1,3-dioxolane-2-one, 4-benzylpiperidine, trimethyl phosphate, 1,3-dioxolane-2-one and mixtures thereof.
Claims8
A dope solution for membrane production comprising a polyethersulfone, and 3-pyridinemethanol for thermally induced phase separation.
Dependencies are inferred from the claim text.