公开(公告)号：US10273338B2

公开(公告)日：2019-04-30

申请号：US15537560

申请日：2014-12-19

Applicant: BL Technologies, Inc.

Inventor： Kai Zhang ,  John H. Barber ,  Russell James MacDonald ,  Yongchang Zheng ,  Li May Goh ,  Yan Gao ,  Yonghong Zhao

IPC: C08J5/22 ,  C08J5/20 ,  B01J41/13 ,  B01D69/12

Abstract: A self-supported ion exchange membrane including a polymerized and crosslinked monomer, where the monomer includes: a least one ionic group, a polymerized group, and a silicate group; and a polymer chemically bonded to crosslinked monomer through the silicate group.

公开(公告)号：US11135551B2

公开(公告)日：2021-10-05

申请号：US16495323

申请日：2017-03-20

Applicant: BL TECHNOLOGIES, INC.

Inventor： Yonghong Zhao ,  John H. Barber

IPC: B01D61/50 ,  B01D69/10 ,  B01D71/42 ,  B01D71/48 ,  B01D71/56

Abstract: The present disclosure provides an ion-exchange membrane that includes a supporting substrate impregnated with an ion-exchange material. The supporting substrate includes an imprinted non-woven layer, and the imprinting includes a plurality of deformations at a surface density of at least 16 per cm2. The supporting substrate may lack a reinforcing layer. In some examples, the supporting substrate may include only a single layer of the imprinted non-woven fabric.

公开(公告)号：US10576424B2

公开(公告)日：2020-03-03

申请号：US15022751

申请日：2013-09-17

Applicant: BL TECHNOLOGIES, INC.

Inventor： Yan Gao ,  Russell James MacDonald ,  Kai Zhang ,  Yonghong Zhao

IPC: B01D61/44 ,  C08J5/22 ,  B01J47/12 ,  B01J41/13

Abstract: An ion exchange polymer is provided. The ion exchange polymer is a reaction product of a reaction between a crosslinker monomer and a cationic monomer. The crosslinker monomer is a reaction product of a reaction between a first crosslinking monomer and a second crosslinking monomer. Further, the cationic monomer comprises a quaternary ammonium group. A method for making an ion exchange polymer is also provided. The method comprises a step of preparing a curable solution and a step of curing the curable solution. The step of preparing the curable solution comprises mixing a pair of crosslinking monomers, a cationic monomer that comprises a quaternary ammonium group and an acid. A membrane is also provided. The membrane comprises the ion exchange polymer made by the method provided.

公开(公告)号：US20190153176A1

公开(公告)日：2019-05-23

申请号：US16251598

申请日：2019-01-18

Applicant: BL Technologies, INC.

Inventor： Kai ZHANG ,  John H. Barber ,  Russell James MacDonald ,  Yongchang Zheng ,  Li May Goh ,  Yan Gao ,  Yonghong Zhao

IPC: C08J5/22 ,  H01M8/103 ,  H01M8/1051 ,  C02F1/42

Abstract: This specification describes an ion exchange membrane and a method of making it. The membrane may be used, for example, in an electrodialysis module or electrochemical cell. The membrane comprises an ion exchange polymer and inorganic particles preferably linked to the ion exchange polymer. To make a membrane, inorganic particles are mixed into an ion exchange membrane pre-cursor. A polymerization initiator or catalyst is then added and the resulting mixture is placed in a form and cured. The inorganic particles may comprise, for example, an oxidized form of graphite such as graphite oxide. The ion exchange polymer may comprise an ionic monomer, containing a quaternary ammonium group for anion exchange or a sulfonate group for cation exchange, along with a crosslinking co-monomer containing polymerizable diacrylic functionalities. The membrane is self-supporting and can be made without a supporting fabric.

公开(公告)号：US11766638B2

公开(公告)日：2023-09-26

申请号：US17462545

申请日：2021-08-31

Applicant: BL Technologies, Inc.

Inventor： Yonghong Zhao ,  John H. Barber

IPC: B01D61/50 ,  B01D69/10 ,  B01D71/42 ,  B01D71/48 ,  B01D71/56

CPC classification number: B01D61/50 ,  B01D69/105 ,  B01D71/42 ,  B01D71/48 ,  B01D71/56 ,  B01D2323/46 ,  B01D2325/42

Abstract: The present disclosure provides an ion-exchange membrane that includes a supporting substrate impregnated with an ion-exchange material. The supporting substrate includes an imprinted non-woven layer, and the imprinting includes a plurality of deformations at a surface density of at least 16 per cm2. The supporting substrate may lack a reinforcing layer. In some examples, the supporting substrate may include only a single layer of the imprinted non-woven fabric.