公开(公告)号：EP2659956A4

公开(公告)日：2017-04-12

申请号：EP11853477

申请日：2011-12-22

Applicant: TORAY INDUSTRIES

Inventor： NAKATSUJI KOJI ,  KIMURA MASAHIRO ,  SASAKI TAKAO ,  TAKAYA KIYOHIKO ,  SHIMURA HARUTOKI

IPC: B01D71/56 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/48

CPC classification number: B01D71/56 ,  B01D67/0006 ,  B01D67/0081 ,  B01D67/0093 ,  B01D69/02 ,  B01D69/10 ,  B01D69/125 ,  B01D71/40 ,  B01D71/64 ,  B01D2252/2053 ,  B01D2323/08 ,  B01D2323/30 ,  B01D2323/36 ,  B01D2325/22

Abstract: Provided is a composite semipermeable membrane, comprising: a microporous support membrane which comprises a substrate and a porous support, and a polyamide separation functional layer formed on the microporous support membrane, wherein the polyamide has an irreversible heat absorption, which is measured using temperature modulated DSC, of 275 J/g or more at a temperature in the range of -20 to 150°C in the first heating process. Provided is a high-performance composite semipermeable membrane having high chemical durability, high water permeation and high rejection.

公开(公告)号：EP2821126A4

公开(公告)日：2015-10-21

申请号：EP13754242

申请日：2013-02-28

Applicant: TORAY INDUSTRIES

Inventor： SHIMURA HARUTOKI ,  OKABE JUN ,  TAKAYA KIYOHIKO ,  KIMURA MASAHIRO

IPC: B01D69/12 ,  B01D69/02 ,  B01D69/10 ,  B01D71/48

CPC classification number: B01D69/125 ,  B01D61/025 ,  B01D61/027 ,  B01D67/0006 ,  B01D67/0016 ,  B01D69/02 ,  B01D69/12 ,  B01D71/16 ,  B01D71/42 ,  B01D71/56 ,  B01D71/66 ,  B01D71/68 ,  B01D2323/40 ,  B01D2325/24 ,  B01D2325/28 ,  C02F1/44 ,  C02F1/441 ,  C02F1/442 ,  C02F2103/08 ,  Y02A20/131

Abstract: To provide a composite semipermeable membrane capable of maintaining high removal performance even after its supporting membrane has come into contact with an aqueous solution high in salt concentration. A composite semipermeable membrane including: a supporting membrane which includes a substrate and a porous supporting layer; and a separation functional layer provided on the porous supporting layer, in which a strength to peel the porous supporting layer away from the substrate is 1.1 N/25mm or higher.

Abstract translation: 提供即使在其支撑膜与盐浓度高的水溶液接触之后也能够保持高的去除性能的复合半透膜。 一种复合半透膜，包括：支撑膜，其包括基底和多孔支撑层; 以及设置在多孔支撑层上的分离功能层，其中将多孔支撑层从基板剥离的强度为1.1N / 25mm以上。

公开(公告)号：EP2805761A4

公开(公告)日：2015-08-05

申请号：EP13738354

申请日：2013-01-16

Applicant: TORAY INDUSTRIES

Inventor： OKABE JUN ,  MARUTANI YOSHIE ,  TAKAYA KIYOHIKO ,  SHIMURA HARUTOKI ,  SASAKI TAKAO ,  KIMURA MASAHIRO

IPC: B01D69/12 ,  B01D69/02 ,  B01D69/10 ,  B01D71/56 ,  B01D71/68 ,  B32B5/18 ,  C08J9/28

CPC classification number: B01D69/12 ,  B01D69/02 ,  B01D69/10 ,  B01D69/125 ,  B01D71/48 ,  B01D71/56 ,  B01D71/68 ,  B01D2323/12 ,  B01D2323/40 ,  B01D2323/46 ,  B01D2325/04 ,  B01D2325/06 ,  B05D1/34

Abstract: The present invention relates to a composite semipermeable membrane including: a supporting membrane having a substrate and a porous supporting layer; and a separation functional layer provided on the supporting membrane, in which, when any 10 cross sections of the composite semipermeable membrane, having a length of 2.0 µm in a membrane surface direction, are observed using an electron microscope, an average number density of projections on the separation functional layer, which have a height equivalent to or higher than 1/5 of a 10-point average surface roughness of the separation functional layer, is 10.0 pieces/µm or more, in each cross section, and an average height of the projections is 100 nm or more.

公开(公告)号：EP2745919A4

公开(公告)日：2015-06-24

申请号：EP12835897

申请日：2012-09-24

Applicant: TORAY INDUSTRIES

Inventor： TAKAYA KIYOHIKO ,  NAKATSUJI KOJI ,  KIMURA MASAHIRO ,  SASAKI TAKAO ,  SHIMURA HARUTOKI

IPC: B01D71/56 ,  B01D69/10 ,  B01D69/12 ,  C08G69/02

CPC classification number: B01D69/12 ,  B01D67/0006 ,  B01D67/0083 ,  B01D67/0088 ,  B01D69/10 ,  B01D69/125 ,  B01D71/56 ,  B01D2323/40 ,  B01D2325/06 ,  B01D2325/14 ,  B01D2325/16 ,  B01D2325/30 ,  C09D177/06

Abstract: There are provided a composite semipermeable membrane including a porous support membrane made of a substrate and a porous support layer and a polyamide separation-functional layer disposed on the porous support layer, wherein the zeta potential of the separation-functional layer at pH 6 is -20 mV or lower, and the zeta potential difference between potentials of the separation-functional layer at pH 10 and pH 3 is 25 mV or smaller, and a production method of a composite semipermeable membrane having high water permeability and high salt rejection performance and having high acid/alkali durability.

公开(公告)号：EP2517783A4

公开(公告)日：2014-12-10

申请号：EP10839361

申请日：2010-12-20

Applicant: TORAY INDUSTRIES

Inventor： TAKAGI KENTARO ,  MITSUHATA TOMOKO ,  SASAKI TAKAO ,  INOUE TAKEHARU ,  YOSHINO TAKASHI ,  TAKAYA KIYOHIKO ,  SUZUKI YUTARO

IPC: B01D71/82 ,  B01D67/00 ,  B01D71/56 ,  C08K5/23 ,  C08L101/00

CPC classification number: B01D67/0093 ,  B01D61/025 ,  B01D71/56 ,  B01D2323/12 ,  B01D2323/30 ,  C02F1/441 ,  C08K5/23

Abstract: Provided is a semipermeable membrane having at least a separating functional layer, wherein azo compounds are retained in the separating functional layer, and the separating functional layer has a yellow index of 10 to 40. Also provided is a method of producing the semipermeable membrane. The present invention provides a semipermeable membrane having not only high water permeability but also high rejection performance even for substances that are nondissociative in the neutral range, such as boric acid, and showing high durability and a manufacturing method therefor.

公开(公告)号：EP3162432A1

公开(公告)日：2017-05-03

申请号：EP15815706

申请日：2015-06-30

Applicant: TORAY INDUSTRIES

Inventor： SHIMURA HARUTOKI ,  OGAWA TAKAFUMI ,  FURUNO SHUJI ,  TAKAYA KIYOHIKO ,  SASAKI TAKAO ,  KIMURA MASAHIRO

IPC: B01D71/56 ,  B01D69/00 ,  B01D69/10 ,  B01D69/12 ,  C08J9/36

CPC classification number: B01D71/56 ,  B01D61/02 ,  B01D67/0006 ,  B01D67/0093 ,  B01D67/0095 ,  B01D69/00 ,  B01D69/10 ,  B01D69/12 ,  B01D69/125 ,  B01D2323/12 ,  B01D2323/30 ,  B01D2323/48 ,  B01D2325/30 ,  C08G69/00 ,  C08G69/02 ,  C08G69/26 ,  C08G69/28 ,  C08G69/32 ,  C08J9/36

Abstract: An object of the present invention is to provide a composite semipermeable membrane which has practical water permeability and high alkali resistance. The composite semipermeable membrane of the present invention includes: a supporting membrane including a substrate and a porous supporting layer; and a separation functional layer disposed on the porous supporting layer of the supporting membrane, in which the separation functional layer includes a crosslinked fully aromatic polyamide, and when a carboxyl group/amide group molar ratio of the separation functional layer is expressed by x, x is 0.54 or less.

Abstract translation: 本发明的一个目的是提供一种具有实用透水性和高耐碱性的复合半透膜。 本发明的复合半透膜包括：支撑膜，其包括基底和多孔支撑层; 以及分离功能层，其设置在支撑膜的多孔支撑层上，其中分离功能层包含交联的全芳香族聚酰胺，并且当分离功能层的羧基/酰胺基团摩尔比由x表示时，x 为0.54以下。

公开(公告)号：EP2868366A4

公开(公告)日：2016-03-30

申请号：EP13808598

申请日：2013-06-27

Applicant: TORAY INDUSTRIES

Inventor： SHIMURA HARUTOKI ,  MARUTANI YOSHIE ,  NAKATSUJI KOJI ,  TAKAYA KIYOHIKO ,  KOIWA MASAKAZU ,  SASAKI TAKAO ,  KIMURA MASAHIRO

IPC: B01D69/00 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/48 ,  B01D71/56

CPC classification number: B01D69/12 ,  B01D67/0016 ,  B01D69/02 ,  B01D69/125 ,  B01D71/56 ,  B01D2323/12 ,  B01D2325/06 ,  B01D2325/20 ,  C02F1/441 ,  C02F2103/08

Abstract: An object of the invention is to provide a composite semipermeable membrane which combines the high ability to remove substances other than water and high water permeability. The invention relates to a composite semipermeable membrane including a porous supporting membrane and a separation functional layer, in which, in cross-sections having a length of 2.0 µm in a membrane surface direction, the average number density of projections in the separation functional layer which have a height of one-fifth or more of the 10-point average surface roughness is 10.0-30.0 projections/µm and the projections have an average height less than 100 nm, and in which a water production rate and a salt rejection are predetermined values or more after an aqueous solution is passed through under certain conditions.

公开(公告)号：EP2540385A4

公开(公告)日：2015-05-27

申请号：EP11747242

申请日：2011-02-17

Applicant: TORAY INDUSTRIES

Inventor： OGAWA TAKAFUMI ,  TOMIOKA HIROKI ,  KIMURA MASAHIRO ,  HIGASHI MASAKI ,  TAKAYA KIYOHIKO ,  KOIWA MASAKAZU

IPC: B01D71/56 ,  B01D67/00 ,  B01D69/02 ,  B01D69/12 ,  C08G69/26 ,  C08G69/28

CPC classification number: B01D71/56 ,  B01D67/0093 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D69/125 ,  B01D2325/06 ,  C08G69/26 ,  C08G69/28

Abstract: Provided is a composite semipermeable membrane having a polyamide separation-functional layer on a porous support layer, wherein the polyamide separation-functional layer has a yellow index of 10 to 40, and the actual length of the polyamide separation-functional layer per 1 µm-length of the porous support layer is from 2 µm to 5 µm, or a composite semipermeable membrane having on a porous support layer a polyamide separation-functional layer prepared by polycondensation of polyfunctional amines with polyfunctional acid halides, wherein the polyamide separation-functional layer is formed by the steps of (A) interfacial polycondensation in which polyfunctional amines and polyfunctional acid halides are brought into contact at 40°C to 70°C and subsequent (B) heat treatment at 70°C to 150°C. The composite semipermeable membrane according to the present invention has high boron removal performance and high water permeation performance.