公开(公告)号：US20190388842A1

公开(公告)日：2019-12-26

申请号：US16490478

申请日：2018-03-01

Applicant: NITTO DENKO CORPORATION

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

IPC: B01D67/00 ,  B01D69/06 ,  B01D69/12 ,  B01D69/14 ,  B01D71/02 ,  B01D71/38 ,  B01D71/56

Abstract: Described herein is a graphene and polyvinyl alcohol based multilayer composite membrane that provides selective resistance for solutes to pass through the membrane while providing water permeability. A selectively permeable membrane comprising a crosslinked graphene with a polyvinyl alcohol and an additive that can provide enhanced salt separation from water, methods for making such membranes, and methods of using the membranes for dehydrating or removing solutes from water are also described.

公开(公告)号：US20180291207A1

公开(公告)日：2018-10-11

申请号：US16004152

申请日：2018-06-08

Applicant: Nitto Denko Corporation

Inventor： Tao Gu ,  Bogumila Rachwal ,  Ozair Siddiqui ,  Stanislaw Rachwal ,  Isamu Kitahara ,  Sergey Simavoryan ,  Peng Wang ,  Michiharu Yamamoto

IPC: C09B62/008 ,  G11B7/245 ,  C07C255/65 ,  G11B7/24044 ,  G02B5/23 ,  G02B1/04 ,  C09K19/60 ,  C09D133/12 ,  C09B29/08 ,  C09B29/01 ,  C08L33/12 ,  C08K5/23 ,  C07D261/08 ,  C07D249/06 ,  C07D239/26 ,  C07D231/12 ,  C07D213/42 ,  G11B7/244

Abstract: Described herein are novel azo-benzene type chromophores. The chromophores are useful in photochromic compositions comprising a polymer matrix and a chromophore, wherein the chromophore is a novel azo-benzene type structure. The photochromic composition is photoresponsive upon irradiation by at least one wavelength of laser light across the visible light spectrum. Photochromic devices which comprise the novel azo-benzene type chromophore compound show significantly higher photoinduced birefringence, higher diffraction efficiency, and brighter images than devices that comprise well known azo-benzene chromophores. The photochromic composition may include a liquid crystal.

公开(公告)号：US20170174537A1

公开(公告)日：2017-06-22

申请号：US15380797

申请日：2016-12-15

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 ,  B01D71/02 ,  B01D69/12

CPC classification number: C02F1/44 ,  B01D61/025 ,  B01D63/02 ,  B01D67/0006 ,  B01D67/0044 ,  B01D67/0079 ,  B01D67/0083 ,  B01D69/08 ,  B01D69/12 ,  B01D69/125 ,  B01D69/148 ,  B01D71/024 ,  B01D71/56 ,  B01D2323/30

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.

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.

公开(公告)号：US20190015792A1

公开(公告)日：2019-01-17

申请号：US16076814

申请日：2017-02-10

Applicant: NITTO DENKO CORPORATION

Inventor： Weiping Lin ,  Isamu Kitahara ,  Shijun Zheng ,  Peng Wang ,  John Ericson ,  Rebecca Romero

IPC: B01D71/02 ,  B01D69/10 ,  F16K15/00 ,  F16K25/00

CPC classification number: B01D71/021 ,  B01D69/10 ,  B01D71/024 ,  B01D2323/30 ,  F16K15/00 ,  F16K17/40 ,  F16K25/005

Abstract: Described herein is a graphene-based valve element capable of passive and repeatable stopping or allowing fluid flow as a function of inlet pressure. Passive flow controller devices based on the valve element are also described.

公开(公告)号：US20170044373A1

公开(公告)日：2017-02-16

申请号：US15306428

申请日：2015-04-21

Applicant: Tao Gu ,  Bogumila Rachwal ,  Ozair Siddiqui ,  Stanislaw Rachwal ,  Isamu Kitahara ,  Sergey Simavoryan ,  Peng Wang ,  Michiharu Yamamoto ,  NITTO DENKO CORPORATION

Inventor： Tao Gu ,  Bogumila Rachwal ,  Ozair Siddiqui ,  Stanislaw Rachwal ,  Isamu Kitahara ,  Sergey Simavoryan ,  Peng Wang ,  Michiharu Yamamoto

IPC: C09B62/008 ,  G02B1/04 ,  G02B5/23

CPC classification number: C09B62/0081 ,  C07C255/65 ,  C07D213/42 ,  C07D231/12 ,  C07D239/26 ,  C07D249/06 ,  C07D261/08 ,  C08K5/23 ,  C08L33/12 ,  C09B29/0003 ,  C09B29/0011 ,  C09B29/0807 ,  C09B62/0083 ,  C09B62/0086 ,  C09B62/0088 ,  C09D133/12 ,  C09K19/601 ,  G02B1/04 ,  G02B5/23 ,  G11B7/24044 ,  G11B7/244 ,  G11B7/245

Abstract: Described herein are novel azo-benzene type chromophores. The chromophores are useful in photochromic compositions comprising a polymer matrix and a chromophore, wherein the chromophore is a novel azo-benzene type structure. The photochromic composition is photoresponsive upon irradiation by at least one wavelength of laser light across the visible light spectrum. Photochromic devices which comprise the novel azo-benzene type chromophore compound show significantly higher photoinduced birefringence, higher diffraction efficiency, and brighter images than devices that comprise well known azo-benzene chromophores. The photochromic composition may include a liquid crystal.

Abstract translation: 本文描述的是新型偶氮苯型发色团。 发色团可用于包含聚合物基质和发色团的光致变色组合物，其中发色团是新颖的偶氮 - 苯型结构。 光致变色组合物在通过可见光光谱的至少一个激光波长照射时是光响应的。 包含新型偶氮 - 苯型发色团化合物的光致变色装置显示比包含公知的偶氮苯发色团的装置显着更高的光诱导双折射，更高的衍射效率和更亮的图像。 光致变色组合物可以包括液晶。

公开(公告)号：US11117101B2

公开(公告)日：2021-09-14

申请号：US16492924

申请日：2018-03-23

Applicant: NITTO DENKO CORPORATION

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

IPC: B01D69/12 ,  B01D61/02 ,  B01D67/00 ,  B01D69/02 ,  B01D69/14 ,  B01D71/02 ,  B01D71/56 ,  B01D71/74

Abstract: Described herein is a crosslinked graphene and biopolymer (e.g. lignin) based composite membrane that provides selective resistance for solutes while providing water permeability. The membrane may include optional additional functional additives in a crosslinked material matrix that provides enhanced salt separation from water. Methods for making such membranes, and methods of using the membranes for dehydrating or removing solutes from water are also described.