公开(公告)号：US20160083257A1

公开(公告)日：2016-03-24

申请号：US14891920

申请日：2014-05-15

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Ken Mukai ,  Kinji Asaka ,  Takeshi Saito ,  Motoo Yumura

IPC: C01B31/02

CPC classification number: C01B32/168 ,  C01B32/174 ,  C01B2202/02 ,  C01B2202/22 ,  D01D5/06 ,  D01D5/12 ,  D01F9/12 ,  D02G3/16 ,  D10B2101/122

Abstract: An object of the present invention is to provide a CNT yarn having excellent conductivity and strength, and a method for producing the same. The present invention provides a drawn yarn comprising carbon nanotubes and having a drawing rate of 10 to 50%.

Abstract translation: 本发明的目的是提供一种导电性和强度优异的CNT纱及其制造方法。 本发明提供一种包含碳纳米管并且拉伸率为10〜50％的拉伸丝。

公开(公告)号：US11084725B2

公开(公告)日：2021-08-10

申请号：US16352553

申请日：2019-03-13

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Ken Mukai ,  Kinji Asaka ,  Takeshi Saito ,  Motoo Yumura

IPC: C01B32/168 ,  D02G3/16 ,  D01D5/06 ,  D01D5/12 ,  D01F9/12 ,  C01B32/174

Abstract: An object of the present invention is to provide a CNT yarn having excellent conductivity and strength, and a method for producing the same. The present invention provides a drawn yarn comprising carbon nanotubes and having a drawing rate of 10 to 50%.

公开(公告)号：US11686019B2

公开(公告)日：2023-06-27

申请号：US16644656

申请日：2018-10-11

Applicant: National Institute of Advanced Industrial Science and Technology ,  Asahi Kasei Kabushiki Kaisha

Inventor： Ken Mukai ,  Shuhei Ikenaga ,  Kinji Asaka ,  Toru Morita ,  Yujin Motoyama ,  Yuta Saito

IPC: D01F9/08 ,  D02G3/44 ,  H01B1/04 ,  B82Y30/00 ,  C01B32/168 ,  B82Y40/00

CPC classification number: D01F9/08 ,  C01B32/168 ,  D02G3/441 ,  H01B1/04 ,  B82Y30/00 ,  B82Y40/00 ,  C01B2202/22 ,  C01B2202/36 ,  C01P2002/82 ,  C01P2004/04 ,  C01P2006/10 ,  D10B2101/122 ,  D10B2401/16

Abstract: The purpose of the present disclosure is to provide a CNT fiber that is constituted of aligned carbon nanotubes (CNTs), is thin, has little irregularity in thickness, has excellent winding properties when undergoing coiling processing, and has superior conductivity. Provided is a CNT fiber constituted of carbon nanotubes (CNTs) having a thickness of 0.01 μm-3 mm, having a coefficient of variation for irregularity in thickness of 0.2 or less, having a distribution rate a for deviation from roundness of 40% or greater, and a distribution rate b of 70% or greater. Also provided is a method for manufacturing the CNT fiber.

公开(公告)号：US20210071320A1

公开(公告)日：2021-03-11

申请号：US16644656

申请日：2018-10-11

Applicant: National Institute of Advanced Industrial Science and Technology ,  Asahi Kasei Kabushiki Kaisha

Inventor： Ken Mukai ,  Shuhei Ikenaga ,  Kinji Asaka ,  Toru Morita ,  Yujin Motoyama ,  Yuta Saito

IPC: D01F9/08 ,  D02G3/44 ,  C01B32/168 ,  H01B1/04

Abstract: The purpose of the present disclosure is to provide a CNT fiber that is constituted of aligned carbon nanotubes (CNTs), is thin, has little irregularity in thickness, has excellent winding properties when undergoing coiling processing, and has superior conductivity. Provided is a CNT fiber constituted of carbon nanotubes (CNTs) having a thickness of 0.01 μm-3 mm, having a coefficient of variation for irregularity in thickness of 0.2 or less, having a distribution rate a for deviation from roundness of 40% or greater, and a distribution rate b of 70% or greater. Also provided is a method for manufacturing the CNT fiber.

公开(公告)号：US10273157B2

公开(公告)日：2019-04-30

申请号：US14891920

申请日：2014-05-15

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Ken Mukai ,  Kinji Asaka ,  Takeshi Saito ,  Motoo Yumura

IPC: C01B32/168 ,  D02G3/16 ,  D01D5/06 ,  D01D5/12 ,  D01F9/12 ,  C01B32/174

Abstract: An object of the present invention is to provide a CNT yarn having excellent conductivity and strength, and a method for producing the same. The present invention provides a drawn yarn comprising carbon nanotubes and having a drawing rate of 10 to 50%.

公开(公告)号：US09424960B2

公开(公告)日：2016-08-23

申请号：US14454714

申请日：2014-08-07

Applicant: FURUKAWA ELECTRIC CO., LTD. ,  NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Hiroaki Rikihisa ,  Masato Tachibana ,  Michihiro Shimada ,  Kinji Asaka ,  Ken Mukai ,  Takushi Sugino

IPC: H01B1/24 ,  D01F9/12 ,  D01D10/06 ,  C01B31/02 ,  D01D5/06 ,  B82Y30/00 ,  B82Y40/00 ,  H01B1/04

CPC classification number: H01B1/24 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/168 ,  C01B32/174 ,  C01B2202/22 ,  C01B2202/28 ,  D01D5/06 ,  D01D10/06 ,  D01F9/12 ,  D10B2401/16 ,  H01B1/04 ,  Y10S977/742 ,  Y10S977/842 ,  Y10S977/932 ,  Y10T428/2918

Abstract: A method for producing an aggregated thread structure includes (a) a process of dispersing carbon nanotube to a first solvent, which is water or a mixed solvent containing organic solvent and water, with a surfactant, to create a dispersion and (b) a process of injecting the dispersion, in which carbon nanotube is dispersed, to a condensing liquid, which is a second solvent that differs from the first solvent, to thereby aggregate and spin carbon nanotube. The aggregated thread structure containing carbon nanotube has: a bulk density of 0.5 g/cm3 or more; a weight reduction rate up to 450° C. of 50% or less; a G/D ratio for resonance Raman scattering measurement of 10 or more; and an electric conductivity of 50 S/cm or more.

Abstract translation: 一种聚集螺纹结构体的制造方法，其特征在于，包括（a）将碳纳米管分散在作为水或含有有机溶剂和水的混合溶剂的第一溶剂与表面活性剂的工序，形成分散液，（b） 将其中分散有碳纳米管的分散体注入到与第一溶剂不同的第二溶剂的冷凝液，从而聚集和旋转碳纳米管。 含有碳纳米管的聚集螺纹结构体积为0.5g / cm 3以上; 450℃以下的重量减轻率为50％以下; 共振拉曼散射测定的G / D比为10以上; 电导率为50S / cm以上。