公开(公告)号：US20170144110A1

公开(公告)日：2017-05-25

申请号：US15424399

申请日：2017-02-03

Applicant: TORAY INDUSTRIES, INC.

Inventor： Harutoki SHIMURA ,  Jun OKABE ,  Kiyohiko TAKAYA ,  Masahiro KIMURA

IPC: B01D69/12 ,  C02F1/44 ,  B01D69/02 ,  B01D71/56 ,  B01D61/02 ,  B01D67/00

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/25 mm or higher.

公开(公告)号：US20180311623A1

公开(公告)日：2018-11-01

申请号：US15771346

申请日：2016-10-27

Applicant: TORAY INDUSTRIES, INC.

Inventor： Jun OKABE ,  Koji NAKATSUJI ,  Tsuyoshi HAMADA ,  Masaki HIGASHI

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

CPC classification number: B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/56

Abstract: An object of the present invention is to provide a composite semipermeable membrane which has a high permeation rate and high salt removal performance and is excellent in terms of performance stability during long-term operation. 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, the separation functional layer includes a crosslinked polyamide and a hydrophilic polymer having an acidic group, and in the separation functional layer, a ratio of (molar equivalent of amino groups)/(molar equivalent of amide groups) is 0.18 or less.

公开(公告)号：US20160243503A1

公开(公告)日：2016-08-25

申请号：US15025814

申请日：2014-09-30

Applicant: TORAY INDUSTRIES, INC.

Inventor： Jun OKABE ,  Koji NAKATSUJI ,  Keisuke YONEDA ,  Tsuyoshi HAMADA

IPC: B01D69/12 ,  B01D71/56 ,  B01D65/08 ,  B01D67/00 ,  B01D69/02 ,  B01D69/10 ,  B01D71/38

CPC classification number: B01D69/125 ,  B01D61/025 ,  B01D65/08 ,  B01D67/0006 ,  B01D67/0088 ,  B01D69/02 ,  B01D69/10 ,  B01D71/38 ,  B01D71/56 ,  B01D71/82 ,  B01D2323/30 ,  B01D2325/24 ,  B01D2325/36 ,  C08L33/02 ,  C08L77/06

Abstract: The present invention provides a composite semipermeable membrane achieving high permeate amount and having high capability to inhibit adhesion of foulants to the membrane surface. The present invention relates to a composite semipermeable membrane including: a supporting membrane which includes a substrate and a porous supporting layer; and a polyamide separation functional layer formed on the porous supporting layer, in which an acidic group-containing hydrophilic polymer is introduced onto the surface of the separation functional layer via amide linkage, and relates to a method for producing such a composite semipermeable membrane.

Abstract translation: 本发明提供了一种复合半透膜，其实现了高渗透量，并具有高的抑制污垢附着在膜表面的能力。 复合半透膜技术领域本发明涉及一种复合半透膜，其包括：支撑膜，其包括基板和多孔支撑层; 以及形成在多孔支持层上的聚酰胺分离功能层，其中含酸性基团的亲水性聚合物通过酰胺键引入到分离功能层的表面上，涉及制备这种复合半透膜的方法。

公开(公告)号：US20140377460A1

公开(公告)日：2014-12-25

申请号：US14481338

申请日：2014-09-09

Applicant: TORAY INDUSTRIES, INC.

Inventor： Jun OKABE ,  Hiroki TOMIOKA ,  Masahiro HENMI

IPC: B01D69/12 ,  B01D69/10

CPC classification number: B01D69/125 ,  B01D69/10 ,  B01D69/12 ,  B01D71/70 ,  B01D2323/02 ,  B01D2325/36

Abstract: In order to obtain a composite separation membrane which has excellent chemical resistance, separation performance and water permeability at the same time, the present invention provides a composite separation membrane comprising a separation function layer on a porous supporting membrane, characterized in that the separation function layer contains at least a polymer of a polyhedral silsesquioxane represented by the following general formula (a) and a hydrophilic monomer. (R1SiO1.5)n(R2SiO1.5)m   General Formula (a) (In the formula, R1 includes a polymerizable reactive moiety; R2 represents a hydrogen atom or an alkyl group, which may be substituted; and n and m each represent an integer satisfying n>2 or m>0, with n+m being 8, 10 or 12.)

Abstract translation: 为了获得同时具有优异的耐化学性，分离性能和透水性的复合分离膜，本发明提供一种复合分离膜，其在多孔支撑膜上具有分离功能层，其特征在于，分离功能层 含有至少一种由以下通式（a）表示的多面体倍半硅氧烷的聚合物和亲水性单体。 （R1SiO1.5）n（R2SiO1.5）m通式（a）（式中，R 1包含可聚合反应性部分; R 2表示氢原子或烷基，可以被取代; n和m各自表示 满足n> 2或m> 0的整数，n + m为8,10或12.）