Carboxymethylated cellulose nanofibers
AssigneeNippon Paper Industries Co., Ltd.
InventorsKazuhiko Inoue, Takeshi Nakatani, Yusuke Tada, Takeshi Fujii
Life of this patent
Estimating the term…
Abstract
Carboxymethylated cellulose nanofibers in which the cellulose type I crystallinity is 60% or higher, the aspect ratio is 350 or lower, and the transmittance of light having a wavelength of 660 nm when the carboxymethylated cellulose nanofibers are made into an aqueous dispersion having a solids fraction of 1% (w/v) is 60% or higher.
Claims8
A carboxymethylated cellulose nanofiber having a degree of crystallization of cellulose I type of 60% or more and an aspect ratio of 350 or less, and exhibiting a transmittance to light at a wavelength of 660 nm of 60% or more when the carboxymethylated cellulose nanofiber is dispersed in water to form a water dispersion having a solid content of 1% (w/v);
- wherein when the carboxymethylated cellulose nanofiber is dispersed in water to form a water dispersion having a solid content of 1% (w/v), the water dispersion has a viscosity (25° C., 60 rpm) of 3000 mPas or more.
Dependencies are inferred from the claim text.