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:
Oct. 24, 2006
Filed:
Jul. 02, 2002
Richard E. Smalley, Houston, TX (US);
Rajesh Kumar Saini, Houston, TX (US);
Ramesh Sivarajan, Houston, TX (US);
Robert H. Hauge, Houston, TX (US);
Virginia Angelica Davis, Webster, TX (US);
Matteo Pasquali, Houston, TX (US);
Lars Martin Ericson, Houston, TX (US);
Richard E. Smalley, Houston, TX (US);
Rajesh Kumar Saini, Houston, TX (US);
Ramesh Sivarajan, Houston, TX (US);
Robert H. Hauge, Houston, TX (US);
Virginia Angelica Davis, Webster, TX (US);
Matteo Pasquali, Houston, TX (US);
Lars Martin Ericson, Houston, TX (US);
William Marsh Rice University, Houston, TX (US);
Abstract
The present invention involves fibers of highly aligned single-wall carbon nanotubes and a process for making the same. The present invention provides a method for effectively dispersing single-wall carbon nanotubes. The process for dispersing the single-wall carbon nanotubes comprises mixing single-wall carbon nanotubes with 100% sulfuric acid or a superacid, heating and stirring under an inert, oxygen-free environment. The single-wall carbon nanotube/acid mixture is wet spun into a coagulant to form the single-wall carbon nanotube fibers. The fibers are recovered, washed and dried. The single-wall carbon nanotubes were highly aligned in the fibers, as determined by Raman spectroscopy analysis.