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. 08, 2019
Filed:
May. 15, 2015
Lg Chem, Ltd., Seoul, KR;
Kwon Nam Sohn, Daejeon, KR;
Kil Sun Lee, Daejeon, KR;
Won Jong Kwon, Daejeon, KR;
Su Jin Park, Daejeon, KR;
Byung Hun Oh, Daejeon, KR;
Eui Yong Hwang, Daejeon, KR;
Seung Bo Yang, Daejeon, KR;
Kwang Hyun Yoo, Daejeon, KR;
Mi Jin Lee, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
The present invention relates to a method for preparing carbon nanotubes which are capable of more effectively preparing carbon nanotubes having a uniform and fine size, and a dispersion composition of carbon nanotubes obtained using the same. The method for preparing carbon nanotube comprises the steps of: forming a dispersion comprising carbon nanotube bundles, a dispersant and a solvent; and enabling the dispersion to consecutively pass through a high pressure homogenizer, wherein the dispersant is a mixture of plural kinds of polyaromatic hydrocarbon oxides, and the carbon nanotube bundles are pulverized or disentangled while passing through a microchannel of the high pressure homogenizer under a shear force to form carbon nanotubes.