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：US20190275461A1

公开(公告)日：2019-09-12

申请号：US16345498

申请日：2017-10-27

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kazuki SATO ,  Masakazu KOIWA ,  Takao SASAKI

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

Abstract: The present invention relates to a gas separation membrane including: a supporting membrane; and a separation functional layer which is provided on the supporting membrane and includes a crosslinked polyamide obtained by polycondensation of a polyfunctional amine and a polyfunctional acid halide, in which, in the crosslinked polyamide, the number A of terminal amino groups, the number B of terminal carboxy groups, and the number C of amide groups satisfy (A+B)/C≤0.66.

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.