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:
Mar. 02, 2010
Filed:
Nov. 30, 2005
Robert H. Hauge, Houston, TX (US);
Ya-qiong Xu, Houston, TX (US);
Haiqing Peng, Houston, TX (US);
Richard E. Smalley, Houston, TX (US);
Irene Morin Marek, Legal Representative, Houston, TX (US);
Robert H. Hauge, Houston, TX (US);
Ya-Qiong Xu, Houston, TX (US);
Haiqing Peng, Houston, TX (US);
Richard E. Smalley, Houston, TX (US);
Irene Morin Marek, legal representative, Houston, TX (US);
William Marsh Rice University, Houston, TX (US);
Abstract
The present invention relates to processes for the purification of single-wall carbon nanotubes (SWNTs). Known methods of single-wall carbon nanotube production result in a single-wall carbon nanotube product that contains single-wall carbon nanotubes in addition to impurities including residual metal catalyst particles and amounts of small amorphous carbon sheets that surround the catalyst particles and appear on the side of the single-wall carbon nanotubes. The present purification processes remove the extraneous carbon as well as metal-containing residual catalyst particles.