SEMIPERMEABLE COMPOSITE MEMBRANE AND METHOD FOR PRODUCING SAME

» Número: WO2018198679A1 (A1)

» Fecha Publicación: 01/11/2018

» Solicitante: TORAY INDUSTRIES?[JP]

» Inventor: YOSHIZAKI TOMOYA?[JP]; HAMADA TSUYOSHI?[JP] (2)

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Provided are: a semipermeable composite membrane having high fouling resistance against membrane contaminants; and a method for producing the semipermeable composite membrane. This semipermeable composite membrane comprises a substrate, a porous support layer disposed on the substrate, and a separation functional layer disposed on the porous support layer, wherein the separation functional layer contains: from the porous support layer side, a first layer containing a crosslinked aromatic polyamide which is a polymer of a polyfunctional aromatic amine and a polyfunctional aromatic acid chloride; and an aliphatic polyamide which is present on the first layer and which is a polymer of a polyfunctional aliphatic carboxylic acid and a polyfunctional aliphatic amine.

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