公开(公告)号：US20200338506A1

公开(公告)日：2020-10-29

申请号：US16771314

申请日：2018-12-26

Applicant: TORAY INDUSTRIES, INC.

Inventor： Rina TAKAHASHI ,  Kazuki SATO ,  Masakazu KOIWA ,  Shuji FURUNO ,  Takao SASAKI

IPC: B01D71/56 ,  B01D63/10 ,  B01D69/10 ,  B01D69/12

Abstract: Provided is a gas separation membrane that can be used continuously. The gas separation membrane comprises: a porous support membrane that contains an aromatic polyamide in which an aromatic ring has been replaced with a chloro group; and a separation functional layer that is disposed on the surface of the porous support membrane and contains a cross-linked polyamide obtained by polycondensation of a polyfunctional amine and a polyfunctional acid halide.

公开(公告)号：US20170136422A1

公开(公告)日：2017-05-18

申请号：US15323022

申请日：2015-06-30

Applicant: TORAY INDUSTRIES, INC.

Inventor： Takafumi OGAWA ,  Harutoki SHIMURA ,  Shuji FURUNO ,  Kiyohiko TAKAYA ,  Takao SASAKI ,  Masahiro KIMURA

IPC: B01D71/56 ,  B01D69/10 ,  C08G69/00 ,  B32B27/34 ,  B32B5/02 ,  B32B3/28 ,  B01D69/12 ,  B01D67/00

CPC classification number: B01D71/56 ,  B01D61/02 ,  B01D67/0006 ,  B01D67/0088 ,  B01D69/00 ,  B01D69/10 ,  B01D69/12 ,  B01D69/125 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2323/30 ,  B01D2325/06 ,  B01D2325/30 ,  B32B3/28 ,  B32B5/022 ,  B32B27/34 ,  C08G69/00 ,  C08G69/32 ,  C08J5/18

Abstract: An object of the present invention is to provide a composite semipermeable membrane which has practical water permeability and removing properties and has a high boron removal ratio even after contact with chlorine. A composite semipermeable membrane of the present invention is a composite semipermeable membrane including a substrate, a porous supporting layer and a separation functional layer, which are superposed in this order, in which the separation functional layer includes a crosslinked fully aromatic polyamide, and the crosslinked fully aromatic polyamide has a molar ratio (amide group content) between a total molar proportion of a polyfunctional amine and a polyfunctional aromatic acid halide and a molar proportion of an amide group of 0.86-1.20.

公开(公告)号：US20210039051A1

公开(公告)日：2021-02-11

申请号：US16976289

申请日：2019-02-28

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kiyohiko TAKAYA ,  Yoshiki NISHIGUCHI ,  Shuji FURUNO ,  Hiroyuki YAMADA

IPC: B01D69/10 ,  B01D67/00 ,  B01D69/12 ,  B01D71/56 ,  C02F1/44

Abstract: The present invention relates to a composite semipermeable membrane comprising a substrate, a support layer, and a separation function layer, wherein: the support layer includes particles and a thermoplastic resin having a porous structure; the particles are present in the thermoplastic resin and contain at least one material selected from the group consisting of a diene polymer, an acrylic polymer, and an ethylenic polymer; and in a cross section of the support layer, taken in the laser thickness direction, 6 or more of the particles are present in an area which is 3 μm from the surface of the support layer in the layer thickness direction and 3 μm in the direction along which such surface extends.

公开(公告)号：US20170120201A1

公开(公告)日：2017-05-04

申请号：US15323039

申请日：2015-06-30

Applicant: TORAY INDUSTRIES, INC.

Inventor： Harutoki SHIMURA ,  Takafumi OGAWA ,  Shuji FURUNO ,  Kiyohiko TAKAYA ,  Takao SASAKI ,  Masahiro KIMURA

IPC: B01D71/56 ,  B01D69/12 ,  B01D67/00 ,  B01D69/10

CPC classification number: B01D71/56 ,  B01D61/02 ,  B01D67/0093 ,  B01D69/10 ,  B01D69/125 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2323/30 ,  B01D2323/48 ,  B01D2325/30 ,  C08G69/265 ,  C08G69/32

Abstract: An object of the present invention is to provide a composite semipermeable membrane which has practical water permeability and high alkali resistance. The composite semipermeable membrane of the present invention includes: a supporting membrane including a substrate and a porous supporting layer; and a separation functional layer disposed on the porous supporting layer of the supporting membrane, in which the separation functional layer includes a crosslinked fully aromatic polyamide, and when a carboxyl group/amide group molar ratio of the separation functional layer measured by a 13C solid NMR spectroscopy is expressed by x, x is 0.54 or less.

公开(公告)号：US20180264413A1

公开(公告)日：2018-09-20

申请号：US15763299

申请日：2016-09-27

Applicant: TORAY INDUSTRIES, INC.

Inventor： Shuji FURUNO ,  Hiroho HIROZAWA ,  Takao SASAKI ,  Yoshiki OKAMOTO ,  Hiroyuki YAMADA

IPC: B01D69/12 ,  B01D71/56 ,  B01D69/10 ,  C02F1/44

Abstract: The purpose of the present invention is to provide a composite semipermeable membrane having achieved both strength and water-permeable properties. This composite semipermeable membrane is provided with a substrate, a porous support body disposed on the substrate, and a separation function layer provided on the porous support body. The substrate has a structure provided with a crimped portion and a non-crimped portion. The porous support body is impregnated inside a crimped portion and inside a non-crimped portion of the substrate.

公开(公告)号：US20160129401A1

公开(公告)日：2016-05-12

申请号：US14894917

申请日：2014-05-29

Applicant: TORAY INDUSTRIES, INC.

Inventor： Shuji FURUNO ,  Yoshiki OKAMOTO ,  Hiroho HIROZAWA ,  Masahiro KIMURA ,  Takao SASAKI

IPC: B01D69/12 ,  B01D71/56 ,  B01D69/10

Abstract: In order to provide a composite semipermeable membrane which combines strength and water permeability, the present invention provides a composite semipermeable membrane including: a supporting membrane including a substrate and a porous support; and a separation functional layer disposed on the porous support, in which the substrate has a weight A per unit area, a portion of the porous support which is located within the substrate has a weight B per unit area, and a sum of the weight A and the weight B, (A+B), is 30 to 100 g/m2, and a ratio between the weight A and the weight B, B/A, is 0.10 to 0.60.

Abstract translation: 为了提供结合强度和透水性的复合半透膜，本发明提供一种复合半透膜，其包括：支撑膜，其包括基底和多孔载体; 以及设置在所述多孔载体上的分离功能层，其中所述基板具有每单位面积的重量A，位于所述基板内的所述多孔载体的一部分具有每单位面积的重量B，并且所述重量A 重量B（A + B）为30〜100g / m 2，重量A与重量B之比B / A为0.10〜0.60。