公开(公告)号：US20220056235A1

公开(公告)日：2022-02-24

申请号：US17413734

申请日：2019-12-24

Applicant: Toray Industries, Inc.

Inventor： Shun Shimura ,  Masayuki Hanakawa ,  Kenta Iwai ,  Takaaki Yasuda

IPC: C08J9/28 ,  C08L27/16 ,  C08J9/00 ,  B01D71/34 ,  B01D69/02 ,  B01D69/10 ,  B01D67/00

Abstract: The present invention relates to a porous membrane including a polymer including a polyvinylidene fluoride-based resin as a main component, and a branched polyvinylidene fluoride-based resin as the polyvinylidene fluoride-based resin, in which the polymer has a value of a of 0.32 to 0.41 and a value of b of 0.18 to 0.42, each of which is determined by approximation according to the formula 1 below from a radius of gyration 1/2 and an absolute molecular weight Mw of the polymer which are measured by GPC-MALS (gel permeation chromatograph equipped with a multi-angle light scattering detector). 1/2=bMwa (Formula 1)

公开(公告)号：US10974199B2

公开(公告)日：2021-04-13

申请号：US16305540

申请日：2017-05-30

Applicant: TORAY INDUSTRIES, INC.

Inventor： Atsushi Kobayashi ,  Kenta Iwai ,  Masayuki Hanakawa ,  Tamotsu Kitade ,  Masahiro Kimura

IPC: B01D63/02 ,  B01D69/02 ,  B01D69/08 ,  B01D71/34

Abstract: This hollow fiber membrane module is provided with: a cylindrical case having a first end and a second end in the direction of height; a plurality of hollow fiber membranes accommodated in the cylindrical case; and a first potting unit attaching the end parts of the plurality of hollow fiber membranes positioned at the first end of the cylindrical case while the end parts are open. The hollow fiber membranes have a rupture strength of 23 MPa or more. The filling rate for the hollow fiber membranes is 40-80%.

公开(公告)号：US09381472B2

公开(公告)日：2016-07-05

申请号：US14403661

申请日：2013-05-30

Applicant: Toray Industries, Inc.

Inventor： Ryuichiro Hiranabe ,  Masayuki Hanakawa ,  Tomonori Kawakami

IPC: B01D53/22 ,  B01D71/60 ,  B01D71/56 ,  B01D67/00 ,  B01D63/08 ,  B01D71/80 ,  C08G69/32 ,  C08G69/40 ,  C10L3/10 ,  B01D69/02 ,  B01D71/58

CPC classification number: B01D71/80 ,  B01D53/228 ,  B01D63/081 ,  B01D67/0013 ,  B01D67/0018 ,  B01D67/0088 ,  B01D69/02 ,  B01D71/56 ,  B01D71/58 ,  B01D71/60 ,  B01D2252/204 ,  B01D2256/16 ,  B01D2256/18 ,  B01D2256/22 ,  B01D2257/108 ,  B01D2257/11 ,  B01D2257/504 ,  B01D2258/0283 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2325/20 ,  C08G69/32 ,  C08G69/40 ,  C10L3/104 ,  C10L2290/548 ,  Y02C10/10 ,  Y02P20/152

Abstract: A carbon dioxide separation membrane includes a skin layer having a function of separating carbon dioxide from a mixed gas, wherein the skin layer contains 30 to 90% by mass of a polymer resin in which a difference between an affinity to carbon dioxide and an affinity to at least one of hydrogen and helium, the affinities are expressed as free energy ΔG (kcal mol−1), is 4.5 kcal mol−1 or more and less than 10 kcal mol−1, and from 10 to 70% by mass of an organic liquid having an affinity to carbon dioxide.

Abstract translation: 二氧化碳分离膜包括具有从混合气体中分离二氧化碳的功能的表皮层，其中，表层含有30〜90质量％的聚合物树脂，其中二氧化碳的亲和力和对二氧化碳的亲和力 氢和氦中的至少一种，亲和力表示为自由能Dgr; G（kcal mol-1），为4.5kcal mol -1以上且小于10kcal mol -1，10〜70质量％ 的对二氧化碳具有亲和性的有机液体。

公开(公告)号：US20130273608A1

公开(公告)日：2013-10-17

申请号：US13916190

申请日：2013-06-12

Applicant: TORAY INDUSTRIES, INC.

Inventor： Masayuki Hanakawa ,  Shinichi Minegishi ,  Hiroyuki Kurihara

IPC: C12P19/40 ,  C12P13/00 ,  C12P7/56 ,  C12P7/06 ,  C12P7/16

CPC classification number: C12P19/40 ,  C12P7/04 ,  C12P7/06 ,  C12P7/16 ,  C12P7/56 ,  C12P13/001 ,  C12P19/04 ,  C12P19/14 ,  Y02E50/16 ,  Y02E50/17

Abstract: A method of producing a compound originating from a polysaccharide-based biomass includes at least one of a saccharification step that produces a sugar solution containing a monosaccharide and/or an oligosaccharide from a product obtainable by hydrolyzing the polysaccharide-based biomass; a fermentation step that ferments the sugar solution containing the monosaccharide and/or oligosaccharide originating from the polysaccharide-based biomass; and a treatment that removes a fermentation inhibitor with the use of a separation membrane having a glucose removal rate and an isopropyl alcohol removal rate which simultaneously satisfy the following relationships (I) and (II) when a 500 ppm aqueous glucose solution at pH 6.5 at 25° C. and a 500 ppm aqueous isopropyl alcohol solution at pH 6.5 at 25° C. are respectively permeated through the membrane at an operation pressure of 0.5 MPa, prior to the saccharification step and/or in the step prior to the fermentation step: Glucose removal rate≧80%  (I) Glucose removal rate−Isopropyl alcohol removal rate≧20%  (II).

Abstract translation: 一种生产源自多糖类生物质的化合物的方法包括从通过水解多糖类生物质获得的产物产生含有单糖和/或寡糖的糖溶液的糖化步骤中的至少一种; 发酵步骤，其发酵含有源自多糖类生物质的单糖和/或寡糖的糖溶液; 以及当pH为6.5的500ppm葡萄糖水溶液时，使用具有葡萄糖去除速率和异丙醇除去速率的分离膜除去发酵抑制剂的处理，其同时满足以下关系式（I）和（II） 25℃下的pH为6.5的500ppm异丙醇水溶液分别在糖化步骤之前和/或在发酵步骤之前的步骤中以0.5MPa的操作压力渗透通过膜 ：葡萄糖去除率> = 80％（I）葡萄糖去除率 - 异丙醇去除率> = 20％（II）。

公开(公告)号：US11090610B2

公开(公告)日：2021-08-17

申请号：US16482089

申请日：2018-01-31

Applicant: TORAY INDUSTRIES, INC.

Inventor： Atsushi Kobayashi ,  Naoki Nakashima ,  Kenji Hayashida ,  Masayuki Hanakawa

IPC: B01D63/04 ,  B01D65/02

Abstract: The present invention relates to a hollow fiber membrane module provided with: a tubular casing having a first end and a second end in the axial direction; a plurality of hollow fiber membranes; a first potting part; and a second potting part, the hollow fiber membrane module further having a flow regulation structure in which a fluid flowing outside the hollow fiber membranes from the second end side toward the first end side forms a flow directed to the radial center on the second end side of the first potting part, and further forms a radial flow directed from the radial center to the radially outer peripheral side on the second end side of the first potting part.

公开(公告)号：US09901883B2

公开(公告)日：2018-02-27

申请号：US15539355

申请日：2015-12-25

Applicant: TORAY INDUSTRIES, INC.

Inventor： Masayuki Hanakawa ,  Kenta Iwai ,  Toshiyuki Ishizaki ,  Tamotsu Kitade ,  Masahiro Kimura

IPC: B01D33/21 ,  B01D39/00 ,  B01D39/14 ,  B01D71/26 ,  B01D63/02 ,  B01D71/34 ,  B01D69/08 ,  B01D69/02

CPC classification number: B01D71/34 ,  B01D67/0016 ,  B01D67/0018 ,  B01D67/0027 ,  B01D69/02 ,  B01D69/08 ,  B01D71/32 ,  B01D2323/08 ,  B01D2325/02 ,  B01D2325/24 ,  B01D2325/30 ,  B01D2325/32 ,  B01D2325/34

Abstract: An object of the present invention is to provide a porous hollow-fiber membrane having high strength while maintaining high pure-water permeation performance. A porous hollow-fiber membrane of the present invention is a porous hollow-fiber membrane including a fluororesin-based polymer, in which the porous hollow-fiber membrane has a columnar texture oriented in a longitudinal direction of the porous hollow-fiber membrane, and a molecular chain of the fluororesin-based polymer is oriented in the longitudinal direction of the porous hollow-fiber membrane.

公开(公告)号：US11077407B2

公开(公告)日：2021-08-03

申请号：US16305757

申请日：2017-05-30

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kenta Iwai ,  Masayuki Hanakawa ,  Tamotsu Kitade ,  Masahiro Kimura ,  Toshiyuki Ishizaki

IPC: B01D69/02 ,  B01D69/08 ,  B01D71/34 ,  C08J9/26 ,  B01D67/00 ,  C02F1/44 ,  C02F103/08

Abstract: The porous hollow-fiber membrane of the present invention comprises a fluororesin polymer, and has columnar structures oriented in the longitudinal direction thereof. In the porous hollow-fiber membrane, molecular chains of the fluororesin polymer have been oriented in the longitudinal direction of the porous hollow-fiber membrane and have an average value ν of Raman orientation parameter of 1.5-4.0.

公开(公告)号：US11058996B2

公开(公告)日：2021-07-13

申请号：US16079837

申请日：2017-02-24

Applicant: TORAY INDUSTRIES, INC.

Inventor： Takaaki Yasuda ,  Masayuki Hanakawa ,  Kenta Iwai ,  Toshiyuki Ishizaki

IPC: B01D69/08 ,  B01D67/00 ,  B01D71/34 ,  B01D71/32 ,  B01D69/02 ,  B01D61/14

Abstract: An object of the present invention is to provide a porous hollow-fiber membrane satisfying both high strength and high pure-water permeation performance and at the same time, having high bending resistance. The present invention relates to a porous hollow-fiber membrane including a fluororesin-based polymer, in which the porous hollow-fiber membrane has a columnar texture oriented in a longitudinal direction of the porous hollow-fiber membrane and when a photograph of a cross-section parallel to the longitudinal direction of the porous hollow-fiber membrane is binarized into a structure portion and a void portion, the following 1) and 2) are satisfied: 1) a proportion of an area of the void portion is from 20 to 50%, and 2) a value obtained by dividing a total of peripheral lengths of the void portions by a total of areas of the void portions is 2.0 μm−1 or less.

公开(公告)号：US10766007B2

公开(公告)日：2020-09-08

申请号：US16066564

申请日：2016-12-26

Applicant: TORAY INDUSTRIES, INC.

Inventor： Shun Shimura ,  Kenta Iwai ,  Masayuki Hanakawa ,  Tamotsu Kitade ,  Masahiro Kimura ,  Atsushi Kobayashi ,  Aya Nishio

IPC: B01D63/02 ,  B01D65/02 ,  B01D69/02 ,  B01D71/34 ,  B01D65/08 ,  C02F1/44 ,  B01D67/00 ,  B01D69/08

Abstract: The present invention provides a hollow fiber membrane module that can effectively resolve the accumulation of suspended solids within the membrane module, lower running costs, and also operate stably. The present invention relates to a hollow fiber membrane molecule provided with: a cylindrical case having a first end and a second end in the direction of height; a plurality of hollow fiber membranes accommodated within the cylindrical case; and a first potting part accommodated within the cylindrical case and attaching the plurality of hollow fiber membranes together such that the end parts of the plurality of hollow membrane fibers at a first end side of the cylindrical case are open. The hollow fiber membranes are porous hollow fiber membranes having a breaking strength of 23 MPa, and the hollow membrane module has a membrane area per unit volume of 800-3700 m2/m3. The filling fraction for the hollow fiber membranes in a cross-section orthogonal to the direction of height of the cylindrical case is 25-38%.

公开(公告)号：US10040033B2

公开(公告)日：2018-08-07

申请号：US15103591

申请日：2014-11-27

Applicant: TORAY INDUSTRIES, INC.

Inventor： Masayuki Hanakawa ,  Koichi Takada ,  Takahiro Tokuyama ,  Kenta Iwai

IPC: B01D39/00 ,  B01D29/00 ,  B01D29/46 ,  B01D69/12 ,  B01D69/02 ,  C02F1/28 ,  C02F1/44 ,  B32B27/06 ,  B01J20/26 ,  B01J20/28 ,  B01J20/32 ,  B01D67/00 ,  B01D69/08 ,  C02F101/10 ,  C02F101/20

Abstract: An object of the present invention is to provide a multilayer separation membrane having excellent performance on both removal of suspended solids in water and adsorptive removal of metal ions in water. A multilayer separation membrane of the present invention includes: a porous adsorption layer including substantially a polymer having chelating functional groups; and a porous clarification layer, and the porous clarification layer is disposed neater to a raw water-side than the porous adsorption layer.