公开(公告)号：US12151939B2

公开(公告)日：2024-11-26

申请号：US17387305

申请日：2021-07-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Bon Cheol Ku ,  Jun Yeon Hwang ,  Hyeon Su Jeong ,  Nam Ho You ,  Nam Dong Kim ,  Dae Yoon Kim ,  Dong Ju Lee ,  Seo Gyun Kim ,  Seung Ki Hong ,  Seung Woo Ryu

IPC: C01B32/168 ,  D01D5/12 ,  D01F9/12

Abstract: The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm3.

公开(公告)号：US11959193B2

公开(公告)日：2024-04-16

申请号：US17701398

申请日：2022-03-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dae Yoon Kim ,  Ki Hyun Ryu ,  Bon Cheol Ku ,  Jun Yeon Hwang ,  Nam Dong Kim ,  Dong Ju Lee ,  Seo Gyun Kim

IPC: D01D5/12 ,  C08G69/26 ,  C08K3/04 ,  D01D1/02 ,  D01D5/06 ,  D01F1/09 ,  D01F1/10 ,  D01F6/60 ,  D01F9/12 ,  D02J1/22 ,  C08J5/00

CPC classification number: D01F1/10 ,  C08G69/26 ,  C08K3/041 ,  D01D1/02 ,  D01D5/06 ,  D01F6/605 ,  D01F9/12 ,  C08G2250/00 ,  C08J5/005 ,  C08K2201/011 ,  D10B2331/02

Abstract: Disclosed are a spinning dope for an aramid and carbon-nanotube composite fiber and a method of manufacturing an aramid and carbon-nanotube composite fiber using the same.