公开(公告)号：US20240216871A1

公开(公告)日：2024-07-04

申请号：US18288249

申请日：2022-04-28

Applicant: Toray Industries, Inc.

Inventor： Kentaro Kobayashi ,  Kenta Iwai ,  Yoichiro Kozaki ,  Satoko Kanamori ,  Takashi Tachibana

IPC: B01D69/08 ,  B01D67/00 ,  B01D69/02 ,  B01D71/34 ,  C08J9/28 ,  C08J9/42 ,  D01D5/06 ,  D01D5/24 ,  D04H1/4318 ,  D04H1/4391 ,  D04H1/56 ,  D06M10/00 ,  D06M10/10 ,  D06M101/22

CPC classification number: B01D69/082 ,  B01D67/0018 ,  B01D67/009 ,  B01D69/02 ,  B01D69/087 ,  B01D71/34 ,  C08J9/28 ,  C08J9/42 ,  D01D5/06 ,  D01D5/24 ,  D04H1/4318 ,  D04H1/43914 ,  D04H1/56 ,  D06M10/005 ,  D06M10/10 ,  B01D2323/02 ,  B01D2323/08 ,  B01D2323/34 ,  B01D2325/36 ,  C08J2201/0522 ,  C08J2327/16 ,  C08J2429/14 ,  C08J2439/04 ,  D06M2101/22 ,  D06M2200/00 ,  D10B2321/042 ,  D10B2505/04

Abstract: The present invention relates to a hollow fiber membrane in which the thickness L of a spherical structure layer is 60-500 μm (inclusive), the spherical structure layer has a first surface and a second surface, the average diameter Da1 of the spherical structure in a region Sa1 10 μm or less from the first surface and the average diameter db2 of the spherical structure in a region Sb2 10-20 μm from the second surface satisfy the relational expression Da1>db2, and the spherical structure satisfies certain parameters.

公开(公告)号：US11617991B2

公开(公告)日：2023-04-04

申请号：US17631250

申请日：2020-07-31

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yoichiro Kozaki ,  Masakazu Koiwa ,  Fumi Hojo ,  Satoko Kanamori ,  Kentaro Kobayashi ,  Masato Yanagibashi

IPC: B01D69/02 ,  B01D69/08 ,  B01D71/32 ,  C12H1/07

Abstract: The present invention relates to a separation membrane including an organic polymer resin, in which a volume V1 of fine pores having a pore diameter of 100 nm or more is 0.3 cm3/g or more and 0.5 cm3/g or less, a volume V2 of fine pores having a pore diameter of less than 100 nm is 0.02 cm3/g or more and less than 0.1 cm3/g, and a ratio V1/V2 of the fine pore volume V1 to the fine pore volume V2 is 3 or more and 60 or less.

公开(公告)号：US20230256394A1

公开(公告)日：2023-08-17

申请号：US18012023

申请日：2021-06-30

Applicant: Toray Industries, Inc.

Inventor： Kentaro Kobayashi ,  Yoichiro Kozaki ,  Satoko Kanamori ,  Atsushi Kobayashi

IPC: B01D63/02 ,  B01D69/08

CPC classification number: B01D63/02 ,  B01D69/081 ,  B01D2315/10 ,  B01D2325/20

Abstract: The present invention relates to a hollow fiber membrane module for outside-in cross-flow filtration including: a container having at least a raw water inlet, a raw water outlet, and a filtrate outlet; and a plurality of hollow fiber membranes housed in the container, in which in the plurality of hollow fiber membranes, an end portion on a raw water inlet side is sealed and an end portion on a filtrate outlet side is opened, and the plurality of hollow fiber membranes have a potting portion fixed by an adhesive at least in the end portion on the filtrate outlet side, and a pure water permeability K (m3/m2/hr/50 kPa) of the hollow fiber membranes and an inner diameter Di (μm) of the hollow fiber membranes satisfy the following requirements: 2.0≤K≤20.0; and 350≤D1≤600.

公开(公告)号：US10662083B2

公开(公告)日：2020-05-26

申请号：US16489278

申请日：2018-02-28

Applicant: TORAY INDUSTRIES, INC.

Inventor： Ryoma Miyamoto ,  Keisuke Yoneda ,  Kumiko Ogawa ,  Satoko Kanamori ,  Ryuichiro Hiranabe ,  Yoichiro Kozaki

IPC: C02F1/42 ,  B01D15/36 ,  B32B5/02 ,  B32B5/26 ,  B01J47/127 ,  B01J39/20 ,  B01J39/07 ,  B01D39/08 ,  B01D39/16

Abstract: The present invention provides a filter which, even when raw water is subjected to high-speed treatment, enables achieving a high solute rejection ratio and a long solute filtration life and which exhibits a low water flow resistance. The present invention pertains to a filter obtained by laminating woven fabrics or knitted fabrics, the filter being characterized in that: said woven fabrics or knitted fabrics comprise a fiber capable of adsorbing components dissolved in liquid: said fiber has a diameter of 100-600 μm; the woven fabrics or knitted fabrics have a porosity of 15-70%; and variation in area porosity in the thickness direction of the laminate is 15% or less.