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.:
Date of Patent:
Nov. 25, 2025
Filed:
Feb. 23, 2021
Applicant:
Nanocomp Technologies, Inc., The Woodlands, TX (US);
Inventor:
David Gailus, Merrick, NH (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B32B 9/00 (2006.01); B01J 31/20 (2006.01); C01B 32/159 (2017.01); C01B 32/162 (2017.01); C01B 32/17 (2017.01);
U.S. Cl.
CPC ...
C01B 32/17 (2017.08); B01J 31/20 (2013.01); C01B 32/159 (2017.08); C01B 32/162 (2017.08); B01J 2231/005 (2013.01); B01J 2531/842 (2013.01); C01B 2202/02 (2013.01); C01B 2202/06 (2013.01); C01B 2202/30 (2013.01);
Abstract
The present disclosure provides a method for purifying nanostructured material comprising carbon nanotubes, metal impurities and amorphous carbon impurities. The method generally includes oxidizing the unpurified nanostructured material to remove the amorphous carbon and thereby exposing the metal impurities and subsequently contacting the nanostructured material with carbon monoxide to volatilize the metal impurities and thereby substantially remove them from the nanostructured material.