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US 12,735,557 B2Granted
Cellulose particles
AssigneeFUJIFILM Business Innovation Corp.
InventorsSatomi Kashiwagi, Hirokazu Hamano, Tetsuya Taguchi, Kenji Yao, Yuko Iwadate, Hideaki Yoshikawa
Life of this patent
Estimating the term…
Abstract
Cellulose particles contain cellulose as a main component. The cellulose particles have a kinetic friction coefficient of 0.42 or less, a bulk density of 0.40 g/cm3 or less, and a solidity of 50% or more.
Claims11
Cellulose particles, each comprising:
- a base particle containing cellulose as a main component,
- a coating layer that covers the base particle;
- and
- an intermediate layer between the base particle and the coating layer,
- wherein a coating mass of the coating layer with respect to the base particle is from 0.1% by mass to 30% by mass, a coating mass of the intermediate layer with respect to the base particle is from 0.1% by mass to 10% by mass, the cellulose particles have a kinetic friction coefficient of 0.42 or less, a bulk density of 0.40 g/cm3 or less, a solidity of 50% or more, and a volume average particle diameter of from 1 μm to 20 μm inclusive.
2 more elements
Cellulose particles, each comprising:
- a base particle containing cellulose as a main component,
- a coating layer that covers the base particle, wherein the coating layer contains at least one coating material selected from the group consisting of a fatty acid, a fatty acid metal salt, and an amino acid compound;
- and
- an intermediate layer between the base particle and the coating layer,
- wherein a coating mass of the coating layer with respect to the base particle is from 0.1% by mass to 30% by mass, a coating mass of the intermediate layer with respect to the base particle is from 0.1% by mass to 10% by mass, the cellulose particles have a kinetic friction coefficient of 0.42 or less, a bulk density of 0.40 g/cm3 or less, and a solidity of 50% or more.
2 more elements
Dependencies are inferred from the claim text.