公开(公告)号：US20240198293A1

公开(公告)日：2024-06-20

申请号：US18287795

申请日：2022-04-22

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yuta AMANO ,  Shunsuke TABAYASHI ,  Ryosuke OKANISHI ,  Takashi YOSHINO ,  Takao SASAKI ,  Hiroki MINEHARA ,  Masaki HIGASHI

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

CPC classification number: B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D2325/04

Abstract: The present invention relates to a composite semipermeable membrane including: a support membrane; and a separation functional layer provided on the support membrane, in which the separation functional layer comprises a plurality of protrusions formed of a thin membrane, and at least a part of the plurality of protrusions has a ratio (Wa/Wb) of larger than 1.3 in cross sections at arbitrary ten positions each having a length of 2.0 μm in a membrane surface direction of the support membrane, provided that Wa is a maximum width of the protrusion and Wb is a root width of the protrusion.

公开(公告)号：US20160271564A1

公开(公告)日：2016-09-22

申请号：US15033488

申请日：2014-10-30

Applicant: TORAY INDUSTRIES, INC.

Inventor： Hiroyuki YAMADA ,  Hiroho HIROZAWA ,  Kentaro TAKAGI ,  Yoshiki OKAMOTO ,  Yoshie MARUTANI ,  Shunsuke TABAYASHI ,  Takao SASAKI ,  Masahiro KIMURA ,  Yuji TANAKA

IPC: B01D63/10 ,  B01D69/12 ,  C08L53/00 ,  C08L23/12 ,  C08L23/16

CPC classification number: B01D63/10 ,  B01D69/12 ,  B01D2313/146 ,  B01D2325/00 ,  B01D2325/08 ,  C08L23/10 ,  C08L23/12 ,  C08L23/16 ,  C08L53/00 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2205/035

Abstract: The present invention provides a separation membrane and a separation membrane element which are capable of exhibiting good water production performance and excellent in handleability and process passage. A separation membrane of the present invention is a separation membrane including: a separation membrane main body having a feed-side face and a permeate-side face; and a permeate-side channel member adhered to the permeate-side face of the separation membrane main body, in which the permeate-side channel member includes a composition containing at least a high-crystalline polypropylene (A) and satisfies the following requirements (a) and (b): (a) a content of the high-crystalline polypropylene (A) in the composition is from 40 to 95% by weight; and (b) the permeate-side channel member has a melting endothermic energy amount (ΔH) of from 20 to 70 J/g.

公开(公告)号：US20240278184A1

公开(公告)日：2024-08-22

申请号：US18287786

申请日：2022-04-22

Applicant: TORAY INDUSTRIES, INC.

Inventor： Ryosuke OKANISHI ,  Shunsuke TABAYASHI ,  Yuta AMANO ,  Takao SASAKI ,  Masaki HIGASHI ,  Takashi YOSHINO ,  Hiroki MINEHARA ,  Hiroaki TANAKA

IPC: B01D69/10 ,  B01D69/02 ,  B01D71/56 ,  C02F1/44 ,  C02F103/08

CPC classification number: B01D69/107 ,  B01D69/02 ,  B01D71/56 ,  C02F1/44 ,  B01D2325/04 ,  B01D2325/06 ,  C02F2103/08

Abstract: The present invention relates to a composite semipermeable membrane including: a support membrane; and a separation functional layer provided on the support membrane, in which the separation functional layer includes a thin membrane, the thin membrane has a fold structure including a plurality of protrusions having a height of 10 nm or more, and in the fold structure, a ratio (T100/T25) is less than 0.95, where T25 is a thickness of the thin membrane in a region of 0% to 25% of the height of the protrusion and T100 is a thickness of the thin membrane in a region of 50% to 100% of the height of the protrusion.

公开(公告)号：US20240198294A1

公开(公告)日：2024-06-20

申请号：US18287800

申请日：2022-04-22

Applicant: TORAY INDUSTRIES, INC.

Inventor： Shunsuke TABAYASHI ,  Ryosuke OKANISHI ,  Yuta AMANO ,  Takashi YOSHINO ,  Takao SASAKI ,  Hiroki MINEHARA ,  Masaki HIGASHI

IPC: B01D69/12 ,  B01D69/02

CPC classification number: B01D69/12 ,  B01D69/02 ,  B01D2325/06

Abstract: The present invention relates to a composite semipermeable membrane including: a support membrane; and a separation functional layer provided on the support membrane, in which the separation functional layer includes a thin membrane, the thin membrane has a fold structure including a plurality of protrusions, an actual length L of the thin membrane per 1 μm length of the support membrane in a cross-sectional direction perpendicular to a membrane surface is 3.0 μm or more, and a thickness of the thin membrane in the protrusion is 15 nm or more.

公开(公告)号：US20170001154A1

公开(公告)日：2017-01-05

申请号：US15115325

申请日：2015-01-29

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yoshie MARUTANI ,  Hiroyuki YAMADA ,  Hiroho HIROZAWA ,  Kentaro TAKAGI ,  Yoshiki OKAMOTO ,  Shunsuke TABAYASHI ,  Hiroshi UMETANI ,  Akira KATAYAMA ,  Takao SASAKI ,  Masahiro KIMURA

IPC: B01D69/12 ,  B01D65/00 ,  B01D67/00 ,  B01D63/10 ,  B01D63/08

CPC classification number: B01D69/12 ,  B01D63/082 ,  B01D63/10 ,  B01D63/103 ,  B01D65/003 ,  B01D67/0013 ,  B01D2313/146 ,  B01D2323/08 ,  B01D2325/22 ,  B01D2325/24 ,  B32B27/06 ,  B32B27/32 ,  B32B2307/54 ,  B32B2307/724 ,  B32B2307/726

Abstract: The present invention provides a separation membrane and a separation membrane element capable of exhibiting a good water production performance even at a high temperature and also excellent handleability and quality. The separation membrane of the present invention includes a separation membrane main body having a feed-side face and a permeate-side face; and a permeate-side channel member fixed onto the permeate-side face of the separation membrane main body, and the permeate-side channel member includes polypropylene as a main component and satisfies the following requirements (a) to (c): (a) a softening point temperature is 60° C. or higher; (b) a tensile elongation in a standard state is 10% or more; and (c) a yield point stress under a wet condition at 50° C. is 2 MPa or more.

Abstract translation: 本发明提供即使在高温下也能表现出良好的水生产性能以及优异的可操作性和质量的分离膜和分离膜元件。 本发明的分离膜包括具有进料侧面和渗透侧面的分离膜主体， 以及固定在分离膜主体的透过侧面上的透过侧流路部件，其特征在于，所述透过侧流路部件包括聚丙烯作为主要成分，满足下述（a）〜（c）的要求：（a） 软化点温度为60℃以上; （b）标准状态下的拉伸伸长率为10％以上; 和（c）在50℃的湿条件下的屈服点应力为2MPa以上。

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。