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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11148099 B1

PDFFull Text
Date of Patent:
Oct. 19, 2021

Filed:

Jan. 15, 2020

Graphene-based membrane and method of producing the same

Applicant:

Ngee Ann Polytechnic, Singapore, SG;

Inventors:

James Antony Prince, Singapore, SG;

Sowrirajalu Bhuvana, Singapore, SG;

Anbharasi Vanangamudi, Singapore, SG;

Gurdev Singh, Singapore, SG;

Assignee:

Ngee Ann Polytechnic, Singapore, SG;

Attorney:

BakerHostetler

Primary Examiner:

Jeffrey C Mullis

Int. Cl.
CPC ...
B01D 67/00 (2006.01); B01D 71/02 (2006.01); B01D 71/42 (2006.01); B01D 71/76 (2006.01); B01D 71/78 (2006.01); B01D 71/68 (2006.01); B01D 69/14 (2006.01); B01D 71/60 (2006.01); C08G 73/10 (2006.01); C08G 73/14 (2006.01); C08L 73/02 (2006.01); C08L 33/24 (2006.01); B01D 71/40 (2006.01); C08F 220/44 (2006.01); C08F 8/32 (2006.01); C08F 222/06 (2006.01); C08F 8/48 (2006.01); C08F 8/12 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0079 (2013.01); B01D 67/00 (2013.01); B01D 69/148 (2013.01); B01D 71/021 (2013.01); B01D 71/40 (2013.01); B01D 71/42 (2013.01); B01D 71/60 (2013.01); B01D 71/68 (2013.01); B01D 71/76 (2013.01); B01D 71/78 (2013.01); C08F 8/12 (2013.01); C08F 8/32 (2013.01); C08F 8/48 (2013.01); C08F 220/44 (2013.01); C08F 222/06 (2013.01); C08G 73/101 (2013.01); C08G 73/1075 (2013.01); C08G 73/14 (2013.01); C08L 33/24 (2013.01); C08L 73/02 (2013.01); B01D 2323/38 (2013.01); B01D 2325/36 (2013.01); C08F 2800/10 (2013.01); C08F 2810/20 (2013.01);
Abstract

A graphene-based membrane and a method of producing the same are disclosed. The graphene-based membrane may include a graphene-polymer composite, wherein the graphene-polymer composite may consist of an amine functionalized graphene and a polymer containing an anhydride group as a linker for linking the amine functionalized graphene to the polymer. The graphene-based membrane may be constructed of a single-layer. A method may include reacting a polymer containing an anhydride with an amine functionalized graphene in presence of a solvent to form an intermediate product; and thermal imidizing the intermediate product to form a graphene grafted polymer composite for use in fabricating a graphene-based membrane.

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