公开(公告)号：US20190160435A1

公开(公告)日：2019-05-30

申请号：US16320893

申请日：2017-07-26

Applicant: TORAY INDUSTRIES, INC.

Inventor： Hiroho HIROZAWA ,  Kentarou TAKAGI ,  Yoshiki OKAMOTO ,  Satoshi KATO ,  Takeshi KONDA ,  Hiroyuki YAMADA ,  Tamotsu KITADE ,  Akshay GARG

IPC: B01D63/12 ,  B01D69/10

Abstract: The present invention relates to a separation membrane element for use in separation of ingredients contained in fluids such as liquid and gas. An object of the present invention is to provide a separation membrane element which, even when used in a high-recovery ratio operation, has high fresh-water production performance and high removal performance and is less apt to suffer scaling.

公开(公告)号：US20190262775A1

公开(公告)日：2019-08-29

申请号：US16346027

申请日：2017-10-24

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yoshiki OKAMOTO ,  Akshay GARG ,  Kentarou TAKAGI ,  Hiroho HIROZAWA ,  Tamotsu KITADE

IPC: B01D63/06 ,  B01D63/10 ,  B32B1/08 ,  C02F1/44

Abstract: According to the present invention, even when a high recovery ratio operation is performed, the influence of concentration of ingredients to be separated in the feed fluid can be reduced, the concentration polarization can be prevented by increasing the turbulence effect on the membrane surface, and the fluid permeation performance and the separation performance of the separation membrane element can be maintained.

公开(公告)号：US20190060838A1

公开(公告)日：2019-02-28

申请号：US15763291

申请日：2016-06-24

Applicant: TORAY INDUSTRIES, INC.

Inventor： Ryuichiro HIRANABE ,  Kentaro KOBAYASHI ,  Masayuki HANAKAWA ,  Tamotsu KITADE

IPC: B01D69/02 ,  B01D69/08 ,  B01D69/14 ,  B01D71/34 ,  B01D71/02 ,  B01D65/02 ,  C02F1/44 ,  C02F1/28 ,  B01J20/06 ,  B01J20/20 ,  B01J20/28 ,  B01J20/26

Abstract: The purpose of the present invention is to provide a porous molded body which is capable of adsorbing and removing low-molecular-weight organic matters or ions with high removal rate. The present invention relates to a porous molded body which is provided with: a plurality of columnar structures containing a crystalline polymer and having a (long side)/(short side) aspect ratio of 2 or more; and inorganic particles.

公开(公告)号：US20200246756A1

公开(公告)日：2020-08-06

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 ,  B01D71/34 ,  B01D69/08 ,  B01D67/00 ,  C08J9/26

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：US20190015788A1

公开(公告)日：2019-01-17

申请号：US16080467

申请日：2017-02-28

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yoshiki OKAMOTO ,  Satoshi KATO ,  Tamotsu KITADE

IPC: B01D63/08 ,  B01D69/06 ,  B01D63/16 ,  B01D65/08 ,  C02F1/44

Abstract: The present invention relates to a flat-sheet separation membrane element having formed therein a separation membrane pair in which separation membranes are disposed such that permeation-side faces thereof face each other and in which a channel material is provided, wherein the area of a high-elasticity region satisfying a bending modulus of 100-1000 MPa and a maximum bending stress of 1-15 MPa at least in one direction is not less than 10% of the area of a filtration region of the pair of separation membranes.

公开(公告)号：US20170348649A1

公开(公告)日：2017-12-07

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: 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：US20190168167A1

公开(公告)日：2019-06-06

申请号：US16312852

申请日：2017-06-23

Applicant: TORAY INDUSTRIES, INC.

Inventor： Shun SHIMURA ,  Kenta IWAI ,  Masayuki HANAKAWA ,  Tamotsu KITADE ,  Masahiro KIMURA

IPC: B01D67/00 ,  B01D69/02 ,  B01D71/34

Abstract: The present invention relates to a composite porous hollow-fiber membrane including a first layer and a second layer which each include a fluororesin-based polymer, in which the first layer has a columnar texture oriented in a longitudinal direction of the composite porous hollow-fiber membrane, the columnar texture has an average value v of a Raman orientation parameter calculated with the specific formula, and the second layer has a three-dimensional network texture and has an average surface-pore diameter of 5.0 nm to 5.0 μm.

公开(公告)号：US20190015786A1

公开(公告)日：2019-01-17

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 ,  B01D69/02 ,  B01D65/08 ,  B01D71/34 ,  B01D65/02 ,  B01D69/08 ,  C02F1/44

CPC classification number: B01D63/02 ,  B01D65/02 ,  B01D65/08 ,  B01D67/0027 ,  B01D69/02 ,  B01D69/08 ,  B01D71/34 ,  B01D2321/04 ,  B01D2321/10 ,  B01D2321/12 ,  B01D2325/24 ,  C02F1/44 ,  C02F1/444 ,  C02F2303/16

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：US20170157572A1

公开(公告)日：2017-06-08

申请号：US15324399

申请日：2015-07-07

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kenta IWAI ,  Toshiyuki ISHIZAKI ,  Tamotsu KITADE ,  Kenji KOMORI ,  Masayuki HANAKAWA

IPC: B01D71/34 ,  B01D67/00 ,  B01D69/08 ,  B01D61/14 ,  B01D69/06

Abstract: An object of the present invention is to provide a separation membrane having high mechanical strength and being less likely to cause clogging and capable of continuously maintaining high water permeation performance. The present invention relates to a separation membrane characterized in that the average diameter D1 of a spherical structure in a region within 10 μm from a first surface in a separation membrane having a spherical structure layer formed of a thermoplastic resin and the average diameter D2 of a spherical structure in a region of 10 μm to 20 μm from a second surface satisfy the relational expression of D1>D2 and the average diameter D1 and the average diameter D3 of a spherical structure in a third region satisfy the relational expression of 1.10

公开(公告)号：US20200206689A1

公开(公告)日：2020-07-02

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%.