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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 11021369 B1

PDFFull Text
Date of Patent:
Jun. 01, 2021

Filed:

Feb. 06, 2017

Carbon nanotube sheet structure and method for its making

Applicant:

General Nano Llc, Cincinnati, OH (US);

Inventors:

Chaminda Jayasinghe, Cincinnati, OH (US);

Larry Allen Christy, Cincinnati, OH (US);

Edward Ming Chan, Loveland, OH (US);

Assignee:

General Nano LLC, Cincinnati, OH (US);

Attorneys:

Daniel F. Nesbitt

Hasse & Nesbitt LLC

Primary Examiner:

Leith S Shafi

Assistant Examiner:

Inja Song

Int. Cl.
CPC ...
C01B 32/168 (2017.01); D04H 1/4242 (2012.01); D21H 13/50 (2006.01); B32B 9/00 (2006.01); B32B 5/02 (2006.01); D04H 1/732 (2012.01); C04B 35/76 (2006.01); D21H 21/52 (2006.01); C04B 35/622 (2006.01); B32B 3/26 (2006.01); B32B 15/20 (2006.01); B32B 15/02 (2006.01); B32B 15/04 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); H01B 1/02 (2006.01); H01B 1/04 (2006.01); B32B 5/26 (2006.01); D21H 21/14 (2006.01); C04B 35/628 (2006.01);
U.S. Cl.
CPC ...
C01B 32/168 (2017.08); B32B 3/26 (2013.01); B32B 5/02 (2013.01); B32B 5/022 (2013.01); B32B 5/024 (2013.01); B32B 5/26 (2013.01); B32B 9/00 (2013.01); B32B 15/02 (2013.01); B32B 15/043 (2013.01); B32B 15/20 (2013.01); C04B 35/62218 (2013.01); C04B 35/62876 (2013.01); C04B 35/76 (2013.01); D04H 1/4242 (2013.01); D04H 1/732 (2013.01); D21H 13/50 (2013.01); D21H 21/14 (2013.01); D21H 21/52 (2013.01); B32B 2255/02 (2013.01); B32B 2255/06 (2013.01); B32B 2255/205 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/02 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/101 (2013.01); B32B 2262/103 (2013.01); B32B 2262/105 (2013.01); B32B 2262/106 (2013.01); B32B 2262/14 (2013.01); B32B 2264/02 (2013.01); B32B 2264/0214 (2013.01); B32B 2264/0264 (2013.01); B32B 2264/101 (2013.01); B32B 2264/102 (2013.01); B32B 2264/105 (2013.01); B32B 2264/107 (2013.01); B32B 2307/20 (2013.01); B32B 2307/212 (2013.01); B32B 2307/546 (2013.01); B32B 2307/718 (2013.01); B32B 2457/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3274 (2013.01); C04B 2235/408 (2013.01); C04B 2235/425 (2013.01); C04B 2235/526 (2013.01); C04B 2235/5248 (2013.01); C04B 2235/5288 (2013.01); C04B 2235/5296 (2013.01); H01B 1/02 (2013.01); H01B 1/04 (2013.01);
Abstract

A carbon nanotube (CNT) sheet containing CNTs, arranged is a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.5. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electro-thermal heating, electromagnetic wave absorption, lightning strike dissipation, EMI shielding, thermal interface pads, energy storage, and heat dissipation.

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