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US 12,460,054 B2Granted
Cellulosic particle
AssigneeFUJIFILM Business Innovation Corp.
InventorsKenji Yao, Kazusei Yoshida, Ayu Naito, Shota Matoba, Satomi Kashiwagi, Yuko Iwadate, Masahiro Oki, Takahiro Ishizuka, Takeshi Iwanaga, Hideaki Yoshikawa, Tetsuya Taguchi, Hirokazu Hamano
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Abstract
A cellulosic particle contains cellulose as its base constituent, and the intensity of sodium fluorescent x-rays from the cellulosic particle measured by x-ray fluorescence analysis is 0.015 kps or more and 0.1 kps or less.
Claims12
A cellulosic particle comprising:
- a core particle containing cellulose as a base constituent;
- a coating layer covering the core particle and containing at least one selected from the group consisting of a fatty acid and a fatty acid metallic salt;
- and
- an intermediate layer between the core particle and the coating layer, wherein
- the fatty acid is a saturated fatty acid,
- the fatty acid metallic salt is a saturated fatty acid metallic salt,
- the intermediate layer is at least one selected from the group consisting of a polyamine compound, a polyquaternium, a polysaccharide compound, and a polyacrylic acid, and
- an intensity of sodium fluorescent x-rays measured by x-ray fluorescence analysis is 0.015 kps or more and 0.1 kps or less.
5 more elements
Dependencies are inferred from the claim text.