公开(公告)号：AU2010336727A1

公开(公告)日：2012-05-31

申请号：AU2010336727

申请日：2010-12-16

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TAKAO ,  MITSUHATA TOMOKO ,  TAKAGI KENTARO ,  OTO KATSUFUMI

IPC: B01D71/56 ,  B01D69/12 ,  B01D71/82 ,  C08J7/12

Abstract: Disclosed is a composite semipermeable membrane which is obtained by forming a polyamide separation functional layer on a microporous supporting membrane, said polyamide separation functional layer being obtained by a polycondensation reaction between a polyfunctional aromatic amine and a polyfunctional acid halide. The polyamide separation functional layer has a carboxy group, an amino group, a phenolic hydroxyl group and an azo group. The ratio of the amino group (X) in the raw water contact surface (surface A) of the polyamide separation functional layer (namely, the molar equivalent of the amino group/(the molar equivalent of the azo group + the molar equivalent of the phenolic hydroxyl group + the molar equivalent of the amino group)) is not more than 0.5, and the ratio of the amino group (X) in the permeation-side surface (surface B) of the polyamide separation functional layer, said permeation-side surface being on the reverse side of the surface A, (namely, the molar equivalent of the amino group/(the molar equivalent of the azo group + the molar equivalent of the phenolic hydroxyl group + the molar equivalent of the amino group)) is within the range of 0.5-1 (inclusive). The composite semipermeable membrane has a good balance between high solute removing properties and high water permeation rate, while having high organic solvent resistance. Also disclosed is a method for producing the composite semipermeable membrane.

公开(公告)号：SG181591A1

公开(公告)日：2012-07-30

申请号：SG2012042354

申请日：2010-12-20

Applicant: TORAY INDUSTRIES

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

Abstract: Semipermeable Membrane and Manufacturing Method thereforProvided is a semipermeable membrane having at least a separating 5 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 presentinvention provides a semipermeable membrane having not only high water permeability but also high rejection performance even for substances that are 10 nondissociative in the neutral range, such as boric acid, and showing high durability and a manufacturing method therefor.(No suitable figure)

公开(公告)号：SG181590A1

公开(公告)日：2012-07-30

申请号：SG2012042339

申请日：2010-12-16

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TAKAO ,  MITSUHATA TOMOKO ,  TAKAGI KENTARO ,  OTO KATSUFUMI

Abstract: A composite semipermeable membrane comprising a porous support membrane on which a separating functional polyamide layer resulting from the polycondensation 5 reaction of polyfunctional aromatic amines with polyfunctional acid halides is formed, wherein the separating functional polyamide layer has carboxy groups, amino groups, phenolic hydroxyl groups, and azo groups, wherein XA, the ratio of the amino groups (molar equivalent of the amino groups / (molar equivalent of the azo groups + molar equivalent of the phenolic hydroxyl groups + molar equivalent of the 10 amino groups)) on a feed water contact surface of the separating functional polyamide layer (an A surface), is in the range 0.5 or less, and XB, the ratio of the amino groups (molar equivalent of the amino groups / (molar equivalent of the azo groups + molar equivalent of the phenolic hydroxyl groups + molar equivalent of the amino groups)) on a permeate-side surface of the separating functional polyamide 15 layer (a B surface), i.e., the opposite side to the A surface, is in the range of 0.5 to 1. The present invention provides a composite semipermeable membrane that achieves a balance between high solute removal properties and a high permeate flow rate and has high organic-solvent resistance, and a method for producing same. 2 2. 2d 2b

公开(公告)号：AU2010336627A1

公开(公告)日：2012-05-31

申请号：AU2010336627

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 ,  B01D69/12 ,  B01D71/56 ,  C08K5/23 ,  C08L101/00

Abstract: Provided is a semipermeable membrane that has, at least, a separating functional layer that retains an azo compound and has a yellowness between 10 and 40, inclusive. Also provided is a method for manufacturing said semipermeable membrane. The provided semipermeable membrane is highly water-permeable and durable and has high blocking performance, even for substances that are non-dissociative in the middle pH range, such as boric acid.

公开(公告)号：EP2517782A4

公开(公告)日：2017-01-04

申请号：EP10839280

申请日：2010-12-16

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TAKAO ,  MITSUHATA TOMOKO ,  TAKAGI KENTARO ,  OTO KATSUFUMI

IPC: B01D71/56 ,  B01D69/12 ,  B01D71/82 ,  C08J7/12

CPC classification number: B01D71/56 ,  B01D65/003 ,  B01D69/12 ,  B01D2323/12 ,  B01D2325/30 ,  C02F1/44 ,  C08J7/047 ,  C08J2477/00

Abstract: A composite semipermeable membrane comprising a porous support membrane on which a separating functional polyamide layer resulting from the polycondensation reaction of polyfunctional aromatic amines with polyfunctional acid halides is formed, wherein the separating functional polyamide layer has carboxy groups, amino groups, phenolic hydroxyl groups, and azo groups, wherein X A , the ratio of the amino groups (molar equivalent of the amino groups / (molar equivalent of the azo groups + molar equivalent of the phenolic hydroxyl groups + molar equivalent of the amino groups)) on a feed water contact surface of the separating functional polyamide layer (an A surface), is in the range 0.5 or less, and X B , the ratio of the amino groups (molar equivalent of the amino groups / (molar equivalent of the azo groups + molar equivalent of the phenolic hydroxyl groups + molar equivalent of the amino groups)) on a permeate-side surface of the separating functional polyamide layer (a B surface), i.e., the opposite side to the A surface, is in the range of 0.5 to 1. The present invention provides a composite semipermeable membrane that achieves a balance between high solute removal properties and a high permeate flow rate and has high organic-solvent resistance, and a method for producing same.

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.