公开(公告)号：US20220305446A1

公开(公告)日：2022-09-29

申请号：US17596844

申请日：2020-06-17

Applicant: NITTO DENKO CORPORATION

Inventor： Bita Bagge ,  Weiping Lin ,  Shijun Zheng ,  Isamu Kitahara ,  Peng Wang ,  Paul Bieghs ,  Fabrice Dumont ,  Takashi Kondo ,  Yuji Yamashiro

IPC: B01D71/80 ,  B01D69/10 ,  B01D71/52 ,  B01D69/14 ,  B01D71/56 ,  B01D69/02 ,  B01D67/00 ,  B01D53/26 ,  B01D53/22 ,  F24F3/14

Abstract: Described herein are crosslinked polymeric based composite membranes that provide selective resistance for gases while providing water vapor permeability. Such composite membranes have a high water/air selectivity in permeability. The methods for making such membranes and using the membranes for dehydrating or removing water vapor from gases are also described.

公开(公告)号：US20210229029A1

公开(公告)日：2021-07-29

申请号：US15734498

申请日：2018-08-03

Applicant: NITTO DENKO CORPORATION

Inventor： Shijun Zheng ,  Isamu Kitahara ,  Yuji Yamashiro ,  Weiping Lin ,  John Ericson ,  Wanyun Hsieh ,  Ozair Siddiqui ,  Peng Wang ,  Craig Roger Bartels ,  Makoto Kobuke ,  Shunsuke Noumi ,  Hiroki Fujioka ,  Bita Bagge

IPC: B01D53/22 ,  B01D71/02 ,  B01D71/38 ,  B01D69/12 ,  B01D53/26 ,  B01D67/00 ,  B01D69/02

Abstract: Described herein are crosslinked graphene oxide and polycarboxylic acid based composite membranes that provide selective resistance for gases while providing water vapor permeability. Such composite membranes have a high water/air selectivity in permeability. The methods for making such membranes, and using the membranes for dehydrating or removing water vapor from gases are also described.

公开(公告)号：US20200376442A1

公开(公告)日：2020-12-03

申请号：US16955007

申请日：2018-12-20

Applicant: NITTO DENKO CORPORATION

Inventor： Shijun Zheng ,  Weiping Lin ,  John Ericson ,  Isamu Kitahara ,  Ozair Siddiqui ,  Wan-Yun Hsieh ,  Peng Wang ,  Yuji Yamashiro ,  Craig Roger Bartels ,  Makoto Kobuke

IPC: B01D67/00 ,  B01D61/02 ,  B01D65/08 ,  B01D71/56 ,  B01D71/02 ,  B01D69/12 ,  C02F1/44

Abstract: Described herein are protective coatings for reverse osmosis membranes comprising coating mixtures of graphene oxide crosslinked with copolymers. The crosslinked GO copolymer mixture coatings provide protection from chlorine-based defoulers of saline water and unprocessed fluids. The coated membranes described herein create a reverse osmosis structure that has excellent water flux and salt rejection. The crosslinking copolymers can comprise an optionally substituted vinyl imidazole constituent unit and an optionally substituted acrylic amide constituent unit.

公开(公告)号：US20200017377A1

公开(公告)日：2020-01-16

申请号：US16556021

申请日：2019-08-29

Applicant: NITTO DENKO CORPORATION

Inventor： Shijun Zheng ,  Isamu Kitahara ,  Makoto Kobuke ,  Peng Wang ,  Craig Roger Bartels ,  Yuji Yamashiro ,  Masahiko Hirose ,  Shunsuke Noumi ,  Weiping Lin

IPC: C02F1/44 ,  B01D67/00 ,  B01D69/08 ,  B01D69/12 ,  B01D71/02

Abstract: Described herein is a graphene material-based membrane that provides selective resistance for solutes or gas while providing water permeability. A selectively permeable membrane comprising graphene oxide, reduced graphene oxide, and also functionalized or crosslinked between the graphene, that provides enhanced salt separation from water or gas permeability resistance, methods for making such membranes, and methods of using the membranes for dehydrating or removing solutes from water are also described.