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：US20200147561A1

公开(公告)日：2020-05-14

申请号：US16618275

申请日：2018-05-31

Applicant: TORAY INDUSTRIES, INC.

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

IPC: B01D71/56 ,  B01D69/12 ,  B01D53/22 ,  B01D63/10

Abstract: The present invention pertains to a gas separation membrane comprising: a porous supporting layer; and a separation function layer disposed on the porous supporting layer and including a crosslinked aromatic polyamide obtained by polycondensation of a multifunctional aromatic amine and a multifunctional aromatic acid halide, wherein the crosslinked aromatic polyamide includes at least one of a fluorine atom bonded to an aromatic ring and a fluorine atom bonded to a nitrogen atom.

公开(公告)号：US20190247800A1

公开(公告)日：2019-08-15

申请号：US16065563

申请日：2016-12-22

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kumiko OGAWA ,  Harutoki SHIMURA ,  Takao SASAKI

IPC: B01D69/02 ,  B01D69/12 ,  B01D71/56 ,  C02F1/44 ,  C08G69/32 ,  C08G69/48

CPC classification number: B01D69/02 ,  B01D67/0093 ,  B01D69/12 ,  B01D69/125 ,  B01D71/56 ,  B01D2323/08 ,  B01D2325/06 ,  B01D2325/20 ,  B01D2325/30 ,  B32B27/34 ,  C02F1/44 ,  C02F2103/08 ,  C08G69/32 ,  C08G69/48 ,  C08G2340/00

Abstract: The present invention provides a composite semipermeable membrane which has practicable water permeability and high acid resistance. The present invention relates to a composite semipermeable membrane including a supporting membrane and a separation functional layer disposed on the supporting membrane, in which the separation functional layer includes a crosslinked aromatic polyamide and has a protuberance structure including protrusions and recesses, a proportion in number of protrusions each having a height of 100 nm or larger is 80% or larger in the protrusions of the protuberance structure, and the separation functional layer contains amino groups, carboxy groups, and amide groups and satisfies y/x≤0.81, in which x is the molar ratio of carboxy groups/amide groups and y is the molar ratio of amino groups/amide groups.

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。

公开(公告)号：US20170203262A1

公开(公告)日：2017-07-20

申请号：US15474870

申请日：2017-03-30

Applicant: TORAY INDUSTRIES, INC.

Inventor： Koji NAKATSUJI ,  Masahiro KIMURA ,  Takao SASAKI ,  Kiyohiko TAKAYA ,  Harutoki SHIMURA

IPC: B01D71/56 ,  B01D69/12 ,  B01D69/02

CPC classification number: B01D71/56 ,  B01D67/0006 ,  B01D67/0081 ,  B01D67/0093 ,  B01D69/02 ,  B01D69/10 ,  B01D69/125 ,  B01D71/40 ,  B01D71/64 ,  B01D2252/2053 ,  B01D2323/08 ,  B01D2323/30 ,  B01D2323/36 ,  B01D2325/22

Abstract: Provided is a composite semipermeable membrane, comprising: a microporous support membrane which comprises a substrate and a porous support, and a polyamide separation functional layer formed on the microporous support membrane, wherein the polyamide has an irreversible heat absorption, which is measured using temperature modulated DSC, of 275 J/g or more at a temperature in the range of −20 to 150° C. in the first heating process.Provided is a high-performance composite semipermeable membrane having high chemical durability, high water permeation and high rejection.

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：US20240278184A1

公开(公告)日：2024-08-22

申请号：US18287786

申请日：2022-04-22

Applicant: TORAY INDUSTRIES, INC.

Inventor： Ryosuke OKANISHI ,  Shunsuke TABAYASHI ,  Yuta AMANO ,  Takao SASAKI ,  Masaki HIGASHI ,  Takashi YOSHINO ,  Hiroki MINEHARA ,  Hiroaki TANAKA

IPC: B01D69/10 ,  B01D69/02 ,  B01D71/56 ,  C02F1/44 ,  C02F103/08

CPC classification number: B01D69/107 ,  B01D69/02 ,  B01D71/56 ,  C02F1/44 ,  B01D2325/04 ,  B01D2325/06 ,  C02F2103/08

Abstract: The present invention relates to a composite semipermeable membrane including: a support membrane; and a separation functional layer provided on the support membrane, in which the separation functional layer includes a thin membrane, the thin membrane has a fold structure including a plurality of protrusions having a height of 10 nm or more, and in the fold structure, a ratio (T100/T25) is less than 0.95, where T25 is a thickness of the thin membrane in a region of 0% to 25% of the height of the protrusion and T100 is a thickness of the thin membrane in a region of 50% to 100% of the height of the protrusion.

公开(公告)号：US20240198294A1

公开(公告)日：2024-06-20

申请号：US18287800

申请日：2022-04-22

Applicant: TORAY INDUSTRIES, INC.

Inventor： Shunsuke TABAYASHI ,  Ryosuke OKANISHI ,  Yuta AMANO ,  Takashi YOSHINO ,  Takao SASAKI ,  Hiroki MINEHARA ,  Masaki HIGASHI

IPC: B01D69/12 ,  B01D69/02

CPC classification number: B01D69/12 ,  B01D69/02 ,  B01D2325/06

Abstract: The present invention relates to a composite semipermeable membrane including: a support membrane; and a separation functional layer provided on the support membrane, in which the separation functional layer includes a thin membrane, the thin membrane has a fold structure including a plurality of protrusions, an actual length L of the thin membrane per 1 μm length of the support membrane in a cross-sectional direction perpendicular to a membrane surface is 3.0 μm or more, and a thickness of the thin membrane in the protrusion is 15 nm or more.

公开(公告)号：US20170368510A1

公开(公告)日：2017-12-28

申请号：US15539347

申请日：2015-12-25

Applicant: TORAY INDUSTRIES, INC.

Inventor： Hiroaki TANAKA ,  Kazuki SATO ,  Takafumi OGAWA ,  Takao SASAKI

IPC: B01D71/56 ,  B01D69/12 ,  B01D69/10 ,  C08G69/46 ,  C08G69/26

CPC classification number: B01D71/56 ,  B01D61/02 ,  B01D61/14 ,  B01D67/0093 ,  B01D69/10 ,  B01D69/12 ,  B01D69/125 ,  B01D2325/30 ,  C08G69/26 ,  C08G69/46

Abstract: The present invention relates to a composite semipermeable membrane including a supporting membrane and a separation functional layer disposed on the supporting membrane, in which the separation functional layer comprises an aromatic polyamide, the aromatic polyamide has side chains and terminal groups, at least one of the side chains and terminal groups of the aromatic polyamide being an amino group, at least one of the side chains and terminal groups of the aromatic polyamide is a substituent having a structure represented by formula (1): —NXY or formula (2): —NXYZ, and in the aromatic polyamide, a content A of substituents having structures represented by formula (1) and formula (2) and a content B of amide groups satisfy 0.005≦A/B≦0.15.