公开(公告)号：US20250136828A1

公开(公告)日：2025-05-01

申请号：US18694095

申请日：2022-09-30

Applicant: DENKA COMPANY LIMITED

Inventor： Shota SOTOKAWA ,  Takeshi ASAMI ,  Hitoshi KANEKO

IPC: C09D7/61 ,  C09D5/33 ,  C09D127/16 ,  C09D127/20

Abstract: A composition for ultraviolet light reflection, the composition containing a base material and zirconium oxide particles dispersed in the base material, in which the base material contains a fluororesin, and a particle diameter D50 of the zirconium oxide particles is 10 μm or less.

公开(公告)号：US20190198879A1

公开(公告)日：2019-06-27

申请号：US16330657

申请日：2017-07-03

Applicant: DENKA COMPANY LIMITED

Inventor： Tatsuya NAGAI ,  Yoko HORIKOSHI ,  Hitoshi KANEKO ,  Hiroshi YOKOTA

IPC: H01M4/62 ,  H01M4/66

CPC classification number: H01M4/625 ,  B82B1/00 ,  C01B32/158 ,  H01M4/13 ,  H01M4/131 ,  H01M4/136 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/62 ,  H01M4/66 ,  H01M4/661 ,  H01M2004/028

Abstract: Provided is a conductive composition for electrodes, the conductive composition having excellent electrical conductivity and dispersibility. Also provided are: a positive electrode for non-aqueous batteries, the positive electrode using the conductive composition and having low electrode plate resistance and excellent binding properties; and a non-aqueous battery having high energy density, high output characteristics, and high cycle characteristics. The conductive composition for electrodes contains a conductive material, an active material, a binder, and a dispersant, wherein the conductive material contains carbon black and a multi-walled carbon nanotube having a powder resistivity of 0.035 Ω⋅cm or less as measured under a load of 9.8 MPa, and a median volumetric diameter D50 value, which is as a measure of dispersibility, in the range of 0.3-8 μm The positive electrode which is for non-aqueous batteries and has low electrode plate resistance and excellent binding properties; and the non-aqueous battery having high output characteristics and high cycle characteristics are obtained by using the conductive composition in which the content of the multi-walled carbon nanotube in the conductive material is 3-50 mass %.

公开(公告)号：US20180216255A1

公开(公告)日：2018-08-02

申请号：US15748350

申请日：2016-07-25

Applicant: Denka Company Limited

Inventor： Hitoshi KANEKO ,  Toru ARAI ,  Yoko HORIKOSHI ,  Ayumu TSUKAMOTO

IPC: D01F9/127 ,  B01J35/10 ,  B01J23/75 ,  C01B32/168

CPC classification number: D01F9/127 ,  B01J23/75 ,  B01J35/10 ,  B82Y40/00 ,  C01B32/168 ,  C01B2202/06

Abstract: Provided is a method for producing carbon nanotibers having excellent conductivity, crystallinity and dispersibility. A method for producing carbon nanofibers, which uses an activated species mainly composed of cobalt as a catalyst, while using carbon monoxide as a carbon source. The catalyst is obtained by having a carrier, which is composed of an oxide having a specific surface area of 0.01-5 m2/g and containing magnesium, support 3-90% by mass of the activated species. By controlling the reaction temperature, the carbon monoxide partial pressure and the gas flow rate of the carbon monoxide, CNF having more excellent conductivity, crystallinity and dispersibility can be produced, thereby obtaining carbon nanofibers having excellent conductivity, crystallinity and dispersibility.