公开(公告)号：US20180071684A1

公开(公告)日：2018-03-15

申请号：US15702536

申请日：2017-09-12

Applicant: Georgia Tech Research Corporation

Inventor： Sankar Nair ,  Nikita Kevlich ,  Fereshteh Rashidi ,  Meisha Shofner ,  Scott Sinquefield ,  Zhongzhen Wang, VIII

IPC: B01D61/02 ,  B01D71/02 ,  B01D63/10 ,  B01D63/06 ,  D21C11/00

CPC classification number: B01D61/022 ,  B01D61/025 ,  B01D61/027 ,  B01D63/06 ,  B01D63/10 ,  B01D69/02 ,  B01D69/10 ,  B01D71/024 ,  B01D71/68 ,  B01D2325/04 ,  B01D2325/22 ,  D21C11/00 ,  D21C11/0042

Abstract: The disclosed technology includes a membrane-based device configured to concentrate black liquor, which results from papermaking. Certain embodiments may comprise a nanofiltration membrane configured to remove lignin from black liquor, and the nanofiltration membrane may include a first macroporous polymer substrate and a first graphene oxide membrane covering the first macroporous polymer substrate. Some embodiments may comprise a reverse osmosis membrane, which may include a second macroporous polymer substrate and a second graphene oxide membrane covering the second macroporous polymer substrate.

公开(公告)号：US20220280698A1

公开(公告)日：2022-09-08

申请号：US17686928

申请日：2022-03-04

Applicant: Georgia Tech Research Corporation

Inventor： Cameron William Irvin ,  Meisha Shofner

IPC: A61L27/52 ,  A61L27/48

Abstract: Disclosed herein are hybrid materials including a polyvinyl alcohol component combined with a filler. The filler may be one or more of crystalline nanocellulose and chitin nanofibers. The hybrid materials may also include water, and in such cases are designated hydrogels. The hybrid materials may be substantially free of solvents including water, and in such cases are designated aerogels. The hydrogels, aerogels, and combinations thereof may be advantageously included in biomimetic implants, including as a biomimetic intervertebral disc replacement

公开(公告)号：US11484838B2

公开(公告)日：2022-11-01

申请号：US16941963

申请日：2020-07-29

Applicant: Georgia Tech Research Corporation

Inventor： Fereshteh Rashidi ,  Sankar Nair ,  Nikita Kevlich ,  Meisha Shofner ,  Scott Sinquefield ,  Zhongzhen Wang

IPC: B01D61/02 ,  B01D71/02 ,  B01D63/06 ,  D21C11/00 ,  B01D63/10 ,  B01D69/02 ,  B01D71/68 ,  B01D69/10

Abstract: The disclosed technology includes a membrane-based device configured to concentrate black liquor, which results from papermaking. Certain embodiments may comprise a nanofiltration membrane configured to remove lignin from black liquor, and the nanofiltration membrane may include a first macroporous polymer substrate and a first graphene oxide membrane covering the first macroporous polymer substrate. Some embodiments may comprise a reverse osmosis membrane, which may include a second macroporous polymer substrate and a second graphene oxide membrane covering the second macroporous polymer substrate.

公开(公告)号：US20220370960A1

公开(公告)日：2022-11-24

申请号：US17612530

申请日：2020-05-22

Applicant: Georgia Tech Research Corporation

Inventor： Sankar Nair ,  Chen Ma ,  Meisha Shofner ,  Scott Sinquefield ,  Zhongzhen Wang

IPC: B01D67/00 ,  B01D71/02 ,  C02F1/44 ,  B01D69/10 ,  B01D69/12

Abstract: Disclosed herein are membranes comprising: porous substrate; and two or more graphene oxide (GO) sheets disposed on the porous substrate, each GO layer comprising a plurality of GO flakes, each GO flake comprising a planar graphene structure with oxygen moieties extending therefrom, wherein the membrane, when a pressure from 10 bar to 50 bar of transmembrane pressure is applied from 1 hour to 48 hours, has an aqueous flux wherein the aqueous flux changes by 5% or less while the pressure is applied. The membranes can also include an intercalating agent disposed between the two or more GO sheets, the intercalating agent interacting with each GO sheet, wherein the intercalating agent provides a non-covalent stabilization of the two or more GO sheets. Also disclosed herein are methods of making and using the same and systems for implementing the same.

公开(公告)号：US20200368688A1

公开(公告)日：2020-11-26

申请号：US16941963

申请日：2020-07-29

Applicant: Georgia Tech Research Corporation

Inventor： Fereshteh Rashidi ,  Sankar Nair ,  Nikita Kevlich ,  Meisha Shofner ,  Scott Sinquefield ,  Zhongzhen Wang

IPC: B01D61/02 ,  B01D71/02 ,  B01D63/06 ,  D21C11/00 ,  B01D63/10 ,  B01D69/02

Abstract: The disclosed technology includes a membrane-based device configured to concentrate black liquor, which results from papermaking. Certain embodiments may comprise a nanofiltration membrane configured to remove lignin from black liquor, and the nanofiltration membrane may include a first macroporous polymer substrate and a first graphene oxide membrane covering the first macroporous polymer substrate. Some embodiments may comprise a reverse osmosis membrane, which may include a second macroporous polymer substrate and a second graphene oxide membrane covering the second macroporous polymer substrate.

公开(公告)号：US20160200934A1

公开(公告)日：2016-07-14

申请号：US14990293

申请日：2016-01-07

Applicant: Georgia Tech Research Corporation ,  THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF AGRICULTURE

Inventor： James Carson Meredith, III ,  Natalie Girouard ,  Gregory T. Schueneman ,  Meisha Shofner

IPC: C09D163/00

CPC classification number: C09D163/00 ,  C08L1/04 ,  C09D101/02 ,  C09D101/04 ,  C08L1/00 ,  C08L63/00

Abstract: Embodiments of the present disclosure provide for compositions and methods of making a waterborne epoxide resin that contains cellulose nanocrystals or nanofibrils.

Abstract translation: 本公开的实施方案提供了制备含有纤维素纳米晶体或纳米原纤维的水性环氧树脂的组合物和方法。