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：US20160008773A1

公开(公告)日：2016-01-14

申请号：US14771057

申请日：2014-02-28

Applicant: TORAY INDUSTRIES, INC.

Inventor： Keisuke YONEDA ,  Shunsuke TABAYASHI ,  Takafumi OGAWA ,  Takao SASAKI ,  Masahiro KIMURA

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

CPC classification number: B01D71/56 ,  B01D67/0006 ,  B01D67/0093 ,  B01D69/02 ,  B01D69/12 ,  B01D69/125 ,  B01D2323/02 ,  B01D2323/30 ,  B01D2325/20 ,  B32B5/12 ,  B32B27/34 ,  C02F1/44 ,  C02F2101/108 ,  C02F2103/08

Abstract: A composite semipermeable membrane including: a substrate; a porous supporting layer formed on the substrate; and a separation functional layer formed on the porous supporting layer, in which the separation functional layer contains crosslinked wholly aromatic polyamide as a main component and contains a carboxy group, a ratio of (molar equivalent of the carboxy group)/(molar equivalent of an amide group) in functional groups contained in the separation functional layer is 0.40 or more, and an average ratio of oxygen atoms/nitrogen atoms in front and rear sides of the separation functional layer is 0.95 or less.

Abstract translation: 一种复合半透膜，包括：基材; 形成在所述基板上的多孔支撑层; 以及形成在多孔支持层上的分离功能层，其中分离功能层含有交联的全芳族聚酰胺作为主要成分并含有羧基，（摩尔当量的羧基）/（摩尔当量的 酰胺基）为0.40以上，分离功能层的前后侧的氧原子/氮原子的平均比例为0.95以下。

公开(公告)号：US20190217286A1

公开(公告)日：2019-07-18

申请号：US16329038

申请日：2017-08-29

Applicant: TORAY INDUSTRIES, INC.

Inventor： Ryoma MIYAMOTO ,  Keisuke YONEDA ,  Ryuichiro HIRANABE ,  Satoko KANAMORI ,  Keiji TAKEDA ,  Noriko NAGAI ,  Naoki ASAI

IPC: B01J47/127 ,  B01J39/20 ,  C02F1/42 ,  C02F1/44

CPC classification number: B01J47/127 ,  B01J39/20 ,  B01J45/00 ,  C02F1/42 ,  C02F1/44 ,  C02F1/441 ,  C02F2001/425 ,  D06M14/16 ,  D06M15/263 ,  D06M15/285

Abstract: The present invention relates to an ion exchange fiber including: a core fiber; and an ion exchange layer that is disposed at a vicinity of the core fiber and includes a crosslinked polymer compound having an ion exchange group, in which, in a cross section perpendicular to a longitudinal direction of the ion exchange fiber, an area of the ion exchange layer occupies 50% or more and 90% or less of a total cross sectional area, and the ion exchange fiber has a swelling ratio of 50% or less.

公开(公告)号：US20200062616A1

公开(公告)日：2020-02-27

申请号：US16489278

申请日：2018-02-28

Applicant: TORAY INDUSTRIES, INC.

Inventor： Ryoma MIYAMOTO ,  Keisuke YONEDA ,  Kumiko OGAWA ,  Satoko KANAMORI ,  Ryuichiro HIRANABE ,  Yoichiro KOZAKI

IPC: C02F1/42 ,  B01D15/36 ,  B32B5/02 ,  B32B5/26 ,  B01J47/127 ,  B01J39/07 ,  B01J39/20

Abstract: The present invention provides a filter which, even when raw water is subjected to high-speed treatment, enables achieving a high solute rejection ratio and a long solute filtration life and which exhibits a low water flow resistance. The present invention pertains to a filter obtained by laminating woven fabrics or knitted fabrics, the filter being characterized in that: said woven fabrics or knitted fabrics comprise a fiber capable of adsorbing components dissolved in liquid: said fiber has a diameter of 100-600 μm; the woven fabrics or knitted fabrics have a porosity of 15-70%; and variation in area porosity in the thickness direction of the laminate is 15% or less.