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.

Date of Patent:
Nov. 26, 2013

Filed:

Jan. 19, 2007
Applicants:

Seon-mi Yoon, Yongin-si, KR;

Jae-young Choi, Yongin-si, KR;

Un-gyu Paik, Seoul, KR;

Jin-hyon Lee, Gyeongsan-si, KR;

Inventors:

Seon-mi Yoon, Yongin-si, KR;

Jae-young Choi, Yongin-si, KR;

Un-gyu Paik, Seoul, KR;

Jin-hyon Lee, Gyeongsan-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/04 (2006.01); B82Y 40/00 (2011.01); C01B 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed herein are a dispersed solution of carbon nanotubes including carbon nanotubes, an organic solvent, a spacer, and a dispersant, and a method of preparing the same. The dispersed solution of the carbon nanotubes includes both the spacer, which reduces the van der Waals force of the carbon nanotubes and prevents bundling of the carbon nanotubes, and the dispersant, which maintains the debundling and stability of the carbon nanotubes, thereby improving the dispersibility of the carbon nanotubes. The method of preparing the dispersed solution of the carbon nanotubes can easily produce a dispersed solution of carbon nanotubes without performing a separate chemical treatment.


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