公开(公告)号：US20240189779A1

公开(公告)日：2024-06-13

申请号：US18282615

申请日：2022-02-25

Applicant: NITTO DENKO CORPORATION

Inventor： Kensuke TANI ,  Daiki IWASAKI ,  Hisae SHIMIZU ,  Shunsuke SAYAMA

IPC: B01D69/12 ,  B01D53/22 ,  B01D69/02 ,  B01D69/10 ,  B01D71/64

CPC classification number: B01D69/1216 ,  B01D53/228 ,  B01D69/02 ,  B01D69/107 ,  B01D69/1213 ,  B01D71/64 ,  B01D2256/10 ,  B01D2257/504 ,  B01D2325/24

Abstract: The present invention provides a method for manufacturing a separation membrane suitable for transferring a separation functional layer and an intermediate layer from a release liner to a porous support member. The manufacturing method of the present invention is a method for manufacturing a separation membrane 10 including a separation functional layer 1, a porous support member 3, and an intermediate layer 2. The manufacturing method includes: forming the intermediate layer 2 on a first laminate 15 having a release liner 5 and the separation functional layer 1; bonding the intermediate layer 2 of a second laminate 16 having the release liner 5, the separation functional layer 1, and the intermediate layer 2 in this order to the porous support member 3 and thereby forming a third laminate 17; and removing the release liner 5 from the third laminate 17. In the manufacturing method, the intermediate layer 2 is formed in such a manner that a ratio R of an adhesive strength A2 (N/50 mm) between the intermediate layer 2 and the porous support member 3 with respect to an adhesive strength A1 (N/50 mm) between the release liner 5 and the separation functional layer 1 is 3.1 or more.

公开(公告)号：US20220161185A1

公开(公告)日：2022-05-26

申请号：US17598437

申请日：2020-03-12

Applicant: NITTO DENKO CORPORATION

Inventor： Kazuya YOSHIMURA ,  Daiki IWASAKI ,  Naomichi KIMURA ,  Shinya NISHIYAMA

IPC: B01D53/22 ,  B01D69/12 ,  B01D69/14 ,  B01D71/52 ,  B01D71/70 ,  B01D71/02

Abstract: The present invention provides a separation membrane that is suitable for separating an acid gas from a gas mixture containing the acid gas and has a high acid gas permeability. A separation membrane (10) of the present invention includes: a separation functional layer (1); a porous support member (3) supporting the separation functional layer (1); and an intermediate layer (2) disposed between the separation functional layer (1) and the porous support member (3), and including a matrix (4) and nanoparticles (5) dispersed in the matrix (4).