US 12,325,779 B2
Cellulosic particle
Kenji Yao, Kanagawa (JP); Satomi Kashiwagi, Kanagawa (JP); Shota Matoba, Kanagawa (JP); Ayu Naito, Kanagawa (JP); Kazusei Yoshida, Kanagawa (JP); Yuko Iwadate, Kanagawa (JP); Masahiro Oki, Kanagawa (JP); Takahiro Ishizuka, Kanagawa (JP); Hideaki Yoshikawa, Kanagawa (JP); Tetsuya Taguchi, Kanagawa (JP); Hirokazu Hamano, Kanagawa (JP); and Takeshi Iwanaga, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Aug. 3, 2023, as Appl. No. 18/365,213.
Claims priority of application No. 2023-015491 (JP), filed on Feb. 3, 2023.
Prior Publication US 2024/0262966 A1, Aug. 8, 2024
Int. Cl. C08J 3/12 (2006.01)
CPC C08J 3/126 (2013.01) [C08J 2301/12 (2013.01); C08J 2305/02 (2013.01); C08J 2377/04 (2013.01)] 13 Claims
 
1. A cellulosic particle comprising:
a core particle containing cellulose as a base constituent, wherein the cellulose as the base constituent is whereby a cellulose content relative to the core particle is 90% by mass or more; and
a coating layer covering the core particle and containing at least one selected from the group consisting of a fatty acid, a fatty acid metallic salt, and an amino acid compound, and wherein:
a percentage water absorption of the cellulosic particle measured by method B in ISO 15512:1999 is 11% or more and 20% or less.