公开(公告)号：US20240429493A1

公开(公告)日：2024-12-26

申请号：US18703022

申请日：2022-10-19

Applicant: Toray Industries, Inc.

Inventor： Yota Okuno ,  Ayako Shimazu ,  Kei Ikoma ,  Hiroki Eimura

IPC: H01M12/02 ,  C08G69/32 ,  C08J5/18 ,  H01M12/08

Abstract: A polymer ion conductive film has an ion migration resistance in the film at 25° C. of 100 Ω or less, and a thickness of the film after each of immersion treatments under the following conditions 1 and 2 is 2.5 times or less a thickness of the film before the immersion treatment: (condition 1) immersion at 25° C. for 24 hours in a solution obtained by mixing ethylene carbonate (EC) and diethyl carbonate (DEC) at a volume ratio of 1/1; (condition 2) immersion at 25° C. for 24 hours in a 0.1 M aqueous solution of sodium hydroxide.

公开(公告)号：US11446611B2

公开(公告)日：2022-09-20

申请号：US16499079

申请日：2018-03-30

Applicant: TORAY INDUSTRIES, INC.

Inventor： Koichi Takada ,  Gohei Yamamura ,  Hiroki Eimura

IPC: B01D69/02 ,  B01D69/08 ,  B01D71/56 ,  B01D71/18 ,  B01D71/48 ,  D01D5/08 ,  D01D5/24 ,  D01F2/28

Abstract: The present invention addresses the problem of providing a separating membrane mainly comprising a thermoplastic resin having high permeability. The present invention relates to a separating membrane including a thermoplastic resin, wherein the width of voids in the separating membrane is at least equal to 1 nm and at most equal to 1000 nm, and the curvature rate of the voids is at least equal to 1.0 and at most equal to 6.0.

公开(公告)号：US11103835B2

公开(公告)日：2021-08-31

申请号：US16498802

申请日：2018-03-30

Applicant: TORAY INDUSTRIES, INC.

Inventor： Hiroki Eimura ,  Gohei Yamamura ,  Koichi Takada

IPC: B01D71/18 ,  B01D67/00 ,  B01D69/02

Abstract: The purpose of the present invention is to provide: a separation film that consists primarily of a cellulose ester and has a high membrane strength and a high elongation degree; and a production method therefor. Provided is a separation film which has a structure comprising a cellulose ester phase and pores, wherein the average pore diameter R is 0.001-6 μm, the value obtained from the expression: breaking strength (MPa)÷(100−porosity (%))×100 is 40 or greater, and the elongation degree is 10% or greater.

公开(公告)号：US20240189778A1

公开(公告)日：2024-06-13

申请号：US18286779

申请日：2022-04-27

Applicant: Toray Industries, Inc.

Inventor： Marina Taguchi ,  Masayuki Hanakawa ,  Gohei Yamamura ,  Koichi Takada ,  Hiroki Eimura ,  Shigeru Aoyama ,  Miku Akutsu

IPC: B01D69/02 ,  B01D53/22 ,  B01D67/00 ,  B01D69/08 ,  B01D71/26

CPC classification number: B01D69/02 ,  B01D53/228 ,  B01D67/002 ,  B01D67/0027 ,  B01D69/0871 ,  B01D71/26 ,  B01D2323/081 ,  B01D2323/12 ,  B01D2325/0231 ,  B01D2325/02832 ,  B01D2325/04 ,  B01D2325/20 ,  B01D2325/24 ,  B01D2325/30 ,  B01D2325/52

Abstract: A separation membrane has high strength and low leakage property while maintaining high gas permeability using poly(4-methyl-1-pentene) excellent in chemical resistance and gas permeability. The separation membrane contains poly(4-methyl-1-pentene) as a main component, in which a ratio RA of a rigid amorphous of poly(4-methyl-1-pentene) in the separation membrane is 43% or more and 60% or less, a porosity is 30% or more and 70% or less, and a dense layer is provided on at least one surface.

公开(公告)号：US11794150B2

公开(公告)日：2023-10-24

申请号：US17786707

申请日：2020-12-23

Applicant: Toray Industries, Inc.

Inventor： Hiroki Eimura ,  Koichi Takada ,  Marina Otsuka ,  Masayuki Hanakawa

IPC: B01D69/02 ,  B01D65/08 ,  B01D67/00 ,  B01D69/08 ,  B01D71/22 ,  B01D71/34 ,  B01D71/40 ,  B01D71/44 ,  B01D71/48 ,  B01D71/52 ,  B01D71/56 ,  B01D71/66

CPC classification number: B01D69/02 ,  B01D65/08 ,  B01D67/0009 ,  B01D67/0083 ,  B01D69/08 ,  B01D71/22 ,  B01D71/34 ,  B01D71/40 ,  B01D71/44 ,  B01D71/48 ,  B01D71/52 ,  B01D71/56 ,  B01D71/66 ,  B01D2323/12 ,  B01D2325/022 ,  B01D2325/0283 ,  B01D2325/04 ,  B01D2325/20 ,  B01D2325/24

Abstract: The present invention relates to a separation membrane including a thermoplastic polymer selected from a cellulose ester and a polyamide, in which, when regions obtained by dividing a cross-sectional surface perpendicular to a longitudinal direction of the separation membrane into 5 at an equal interval are defined as regions 1 to 5, all the regions 1 to 5 have a number average pore diameter changing rate αi of −0.25 to 0.25, and at least one of the regions 1 to 5 is a region P that satisfies conditions (a) and (b): (a) a value of area average pore diameter Ds/number average pore diameter Dn is 2.50 to 6.00; and (b) a number average W of fine pores that are located at a distance smaller than La from a center of respective coarse pores is 10 to 30.

公开(公告)号：US20230053706A1

公开(公告)日：2023-02-23

申请号：US17786707

申请日：2020-12-23

Applicant: Toray Industries, Inc.

Inventor： Hiroki Eimura ,  Koichi Takada ,  Marina Otsuka ,  Masayuki Hanakawa

IPC: B01D69/02 ,  B01D65/08 ,  B01D67/00 ,  B01D69/08 ,  B01D71/22 ,  B01D71/34 ,  B01D71/40 ,  B01D71/44 ,  B01D71/48 ,  B01D71/52 ,  B01D71/56 ,  B01D71/66

Abstract: The present invention relates to a separation membrane including a thermoplastic polymer selected from a cellulose ester and a polyamide, in which, when regions obtained by dividing a cross-sectional surface perpendicular to a longitudinal direction of the separation membrane into 5 at an equal interval are defined as regions 1 to 5, all the regions 1 to 5 have a number average pore diameter changing rate a of −0.25 to 0.25, and at least one of the regions 1 to 5 is a region P that satisfies conditions (a) and (b): (a) a value of area average pore diameter Ds/number average pore diameter Dn is 2.50 to 6.00; and (b) a number average W of fine pores that are located at a distance smaller than La from a center of respective coarse pores is 10 to 30.

公开(公告)号：US11369925B2

公开(公告)日：2022-06-28

申请号：US16489276

申请日：2018-02-27

Applicant: TORAY INDUSTRIES, INC.

Inventor： Koichi Takada ,  Gohei Yamamura ,  Hiroki Eimura

IPC: B01D69/08 ,  B01D69/12 ,  B01D71/16 ,  B01D71/56

Abstract: The present invention addresses the problem of providing: a composite hollow-fiber membrane having high permeability and high membrane strength; and a production method therefor. The present invention pertains to a composite hollow-fiber membrane that at least has a layer (A) and a layer (B), wherein the layer (A) contains a thermoplastic resin, the layer (A) is provided with a co-continuous structure comprising voids and a phase containing the thermoplastic resin, the co-continuous structure has a structural cycle of 1-1000 nm, and the hole area rate HA of the layer (A) and the hole area rate HB of the layer (B) fulfill the relation: HA