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. 19, 2013
Filed:
Dec. 18, 2009
Namsun Choi, Daejeon, KR;
Hyun-kyung Sung, Daejeon, KR;
Dong Hwan Kim, Daejeon, KR;
Sang-hyo Ryu, Daejeon, KR;
Wan Sung Lee, Daejeon, KR;
Youngchan Jang, Daejeon, KR;
Namsun Choi, Daejeon, KR;
Hyun-Kyung Sung, Daejeon, KR;
Dong Hwan Kim, Daejeon, KR;
Sang-Hyo Ryu, Daejeon, KR;
Wan Sung Lee, Daejeon, KR;
Youngchan Jang, Daejeon, KR;
Korea Kumho Petrochemical Co., Ltd., Jongru-Gu, Seoul, unknown;
Abstract
The present invention relates to a catalyst for preparing a carbon nanotube having desired apparent density by controlling the adding amount of co-precipitating agent in the process of preparing a catalyst in order to obtain a catalyst having a minimized particle size. More specifically, this invention relates to a catalyst for preparing carbon nanotube having desired apparent density based upon the reverse-correlation between the amount of co-precipitating agent added in the process of preparing catalyst and the apparent density of catalyst. The carbon nanotube prepared by the catalyst having low apparent density shows excellent electrical conductivity and highly uniformed dispersion in the polymer/carbon nanotube composite.