COMPOSITE SEMIPERMEABLE MEMBRANE

To provide a composite semipermeable membrane that exhibits both separation performance and water permeability while exhibiting excellent chlorine resistance.SOLUTION: The composite semipermeable membrane comprises a microporous support layer and a separation function layer disposed on the microporo...

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Bibliographic Details
Main Authors NAGANO IZUMI, OGAWA KUMIKO, SHIMURA HARUKI, MITSUI SHINYA
Format Patent
LanguageEnglish
Japanese
Published 06.04.2023
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:To provide a composite semipermeable membrane that exhibits both separation performance and water permeability while exhibiting excellent chlorine resistance.SOLUTION: The composite semipermeable membrane comprises a microporous support layer and a separation function layer disposed on the microporous support layer, where the separation function layer contains a polyamide which has a partial structure represented by the general formula (1) described in the specification.SELECTED DRAWING: None 【課題】優れた耐塩素性を示しつつ、分離性能と透水性能とを両立した複合半透膜を提供する。【解決手段】本発明は、微多孔性支持層と、前記微多孔性支持層上に設けられた分離機能層とを有する複合半透膜であって、前記分離機能層がポリアミドを含有し、前記ポリアミドが明細書中に記載の一般式（１）で表される部分構造を有する複合半透膜に関する。【選択図】なし
Bibliography:Application Number: JP20210156464