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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 9656214 B1

PDFFull Text
Date of Patent:
May. 23, 2017

Filed:

Nov. 30, 2012

Graphene membrane laminated to porous woven or nonwoven support

Applicant:

Empire Technology Development Llc, Wilmington, DE (US);

Inventors:

Seth Adrian Miller, Englewood, CO (US);

Gary L. Duerksen, Ward, CO (US);

Assignee:

EMPIRE TECHNOLOGY DEVELOPMENT LLC, Wilmington, DE (US);

Attorney:

Turk IP Law, LLC

Primary Examiner:

Lucas Stelling

Assistant Examiner:

Angel Olivera

Int. Cl.
CPC ...
B01D 69/12 (2006.01); B01D 71/02 (2006.01); B01D 69/10 (2006.01); B32B 15/08 (2006.01); B32B 15/14 (2006.01); B32B 27/28 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 27/38 (2006.01); B32B 9/00 (2006.01); B32B 9/04 (2006.01); B32B 27/40 (2006.01); B32B 5/02 (2006.01); B32B 3/26 (2006.01);
U.S. Cl.
CPC ...
B01D 69/12 (2013.01); B01D 69/10 (2013.01); B01D 69/122 (2013.01); B01D 71/021 (2013.01); B32B 3/266 (2013.01); B32B 5/022 (2013.01); B32B 5/024 (2013.01); B32B 9/007 (2013.01); B32B 9/041 (2013.01); B32B 15/08 (2013.01); B32B 15/14 (2013.01); B32B 27/28 (2013.01); B32B 27/30 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/38 (2013.01); B32B 27/40 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/106 (2013.01); B32B 2307/54 (2013.01);
Abstract

Technologies are generally described for composite membranes which may include a porous graphene layer in contact with a porous support substrate. In various examples, a surface of the porous support substrate may include at least one of: a thermo-formed polymer characterized by a glass transition temperature, a woven fibrous membrane, and/or a nonwoven fibrous membrane. Examples of the composite membranes permit the use of highly porous woven or nonwoven fibrous support membranes instead of intermediate porous membrane supports. In several examples, the composite membranes may include porous graphene layers directly laminated onto the fibrous membranes via the thermo-formed polymers. The described composite membranes may be useful for separations, for example, of gases, liquids and solutions.

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