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:
Jun. 07, 2022

Filed:

Mar. 16, 2018
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Sung Jin Kim, Daejeon, KR;

Jae Keun Yoon, Daejeon, KR;

Dong Hyun Cho, Daejeon, KR;

Hyun Joon Kang, Daejeon, KR;

Byung Yul Choi, Daejeon, KR;

Duk Ki Kim, Daejeon, KR;

Hyun Woo Park, Daejeon, KR;

Hyo Sang You, Daejeon, KR;

Assignee:

LG CHEM, LTD, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 32/162 (2017.01); H01B 1/04 (2006.01); B01J 23/847 (2006.01);
U.S. Cl.
CPC ...
C01B 32/162 (2017.08); B01J 23/8472 (2013.01); H01B 1/04 (2013.01); C01B 2202/02 (2013.01); C01B 2202/06 (2013.01); C01B 2202/08 (2013.01); C01B 2202/22 (2013.01); C01B 2202/32 (2013.01); C01P 2006/10 (2013.01); C01P 2006/11 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01);
Abstract

The present invention relates to a bundle-type carbon nanotube which has a bulk density of 25 to 45 kg/m, a ratio of the bulk density to a production yield of 1 to 3, and a ratio of a tap density to the bulk density of 1.3 to 2.0, and a method for preparing the same.


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