公开(公告)号：US20250140864A1

公开(公告)日：2025-05-01

申请号：US18693654

申请日：2022-09-27

Applicant: DENKA COMPANY LIMITED

Inventor： Michiya NAKASHIMA ,  Tatsuya NAGAI ,  Yusaku HARADA ,  Masato YAMADA ,  Kosuke TANAKA

IPC: H01M4/62 ,  H01M4/02

Abstract: A carbon black having a bulk density of 0.08 g/cm3 or lower after being compressed at 490 Pa for 3 minutes. A carbon black having a bulk density of 0.1 g/cm3 or lower after being stirred under a condition of gravity acceleration 400 G for 30 minutes using a rotation-revolution type stirrer.

公开(公告)号：US20240384104A1

公开(公告)日：2024-11-21

申请号：US18693227

申请日：2022-09-27

Applicant: DENKA COMPANY LIMITED

Inventor： Michiya NAKASHIMA ,  Tatsuya NAGAI ,  Yusaku HARADA ,  Masato YAMADA ,  Kosuke TANAKA

IPC: C09C1/56 ,  H01M4/62

Abstract: A carbon black capable of floating on a surface of a pure water when the carbon black is shaken together with the pure water at 25° C., and settling from the surface of the pure water at 50° C. or higher when the temperature of the pure water is increased stepwise from 25° C. and the carbon black is shaken together with the pure water at each temperature.

公开(公告)号：US20240076503A1

公开(公告)日：2024-03-07

申请号：US18262512

申请日：2022-01-21

Applicant: Denka Company Limited

Inventor： Tetsuya ITO ,  Yusaku HARADA ,  Kosuke TANAKA ,  Tatsuya NAGAI

IPC: C09C1/54 ,  C09C1/56

CPC classification number: C09C1/54 ,  C09C1/56 ,  C01P2006/12 ,  C01P2006/42

Abstract: Carbon black in which an oil absorption amount is 150 mL/100 g or more and 400 mL/100 g or less and a cobalt content that is measured by induced coupled plasma-mass spectrometry is 20 ppb or less.

公开(公告)号：US20240076502A1

公开(公告)日：2024-03-07

申请号：US18262507

申请日：2022-01-21

Applicant: Denka Company Limited

Inventor： Tetsuya ITO ,  Yusaku HARADA ,  Kosuke TANAKA ,  Tatsuya NAGAI

IPC: C09C1/54 ,  C09C1/56

CPC classification number: C09C1/54 ,  C09C1/56 ,  C01P2006/12 ,  C01P2006/42

Abstract: Carbon black in which an oil absorption amount is 150 mL/100 g or more and 400 mL/100 g or less and a nickel content that is measured by induced coupled plasma-mass spectrometry is 50 ppb or less.

公开(公告)号：US20250096266A1

公开(公告)日：2025-03-20

申请号：US18728188

申请日：2023-01-17

Applicant: DENKA COMPANY LIMITED

Inventor： Kosuke TANAKA ,  Yusaku HARADA ,  Kazuta HIRATA

IPC: H01M4/587 ,  C09C1/48 ,  H01M4/02 ,  H01M10/0525

Abstract: Carbon black in which, when aggregates are divided into first primary aggregates having an X value of more than 1.7, second primary aggregates having an X value of 1.7 or less and a Y value of 1.2 or less, third primary aggregates having an X value of 1.7 or less, a Y value of more than 1.2, and a Z value of 2.0 or less, and fourth primary aggregates having an X value of 1.7 or less, a Y value of more than 1.2, and a Z value of more than 2.0, the number percentage of a total number of the second primary aggregates and the third primary aggregates is 23% or more: X = L / W ( X ) Y = P 2 / 4 ⁢ π ⁢ A ( Y ) Z = ( L × W ) / A ( Z ) [in the formula, in a two-dimensional projection image of a primary aggregate under a transmission electron microscope, the Feret's diameter of the primary aggregate in the minor axis direction is W (μm), the Feret's diameter in the major axis direction is L (μm), the perimeter is P (μm), and the projected area is A (μm2)].

公开(公告)号：US20240079598A1

公开(公告)日：2024-03-07

申请号：US18262499

申请日：2022-01-21

Applicant: Denka Company Limited

Inventor： Tetsuya ITO ,  Yusaku HARADA ,  Kosuke TANAKA ,  Tatsuya NAGAI

IPC: H01M4/62 ,  C09C1/54 ,  C09C1/56

CPC classification number: H01M4/625 ,  C09C1/54 ,  C09C1/56 ,  C01P2006/12 ,  C01P2006/19 ,  C01P2006/40 ,  C01P2006/80

Abstract: Carbon black in which an oil absorption amount is 150 mL/100 g or more and 400 mL/100 g or less and an iron content that is measured by induced coupled plasma-mass spectrometry is 500 ppb or less.