公开(公告)号：US11981790B2

公开(公告)日：2024-05-14

申请号：US17907765

申请日：2021-08-13

Applicant: TOKAI CARBON CO., LTD.

Inventor： Akihiro Sakakibara ,  Yuki Kubota ,  Keisuke Osamura

IPC: C08K3/04 ,  C09C1/50 ,  C09C1/58

CPC classification number: C08K3/04 ,  C09C1/50 ,  C09C1/58 ,  C01P2002/82 ,  C01P2002/86 ,  C01P2006/12 ,  C01P2006/19 ,  C08K2201/006

Abstract: A carbon black wherein a nitrogen adsorption specific surface area (N2SA) is 25 to 60 m2/g, a DBP absorption number is 90 to 180 cm3/100 g, a ratio of the nitrogen adsorption specific surface area (N2SA) to an iodine adsorption number (IA) (N2SA/IA) is 1.10×103 to 1.50×103 m2/g, a hydrogen content by NMR is 150 to 250 /g, and ΔD is 260 to 290 cm−1.