Cellulose acetate and method for producing cellulose acetate
AssigneeDaicel Corporation
InventorsShuuji YOSHIOKA, Toshikazu NAKAMURA, Shu SHIMAMOTO, Takao KISHIMOTO
Life of this patent
Estimating the term…
Loading patent…
AssigneeDaicel Corporation
InventorsShuuji YOSHIOKA, Toshikazu NAKAMURA, Shu SHIMAMOTO, Takao KISHIMOTO
Estimating the term…
The present invention is to provide a cellulose acetate that has a low total degree of acetyl substitution and a degree of acetyl substitution at 6-position that is lower compared to the degrees of acetyl substitution at 2-position and 3-position of a glucose ring, and has excellent water solubility. A cellulose acetate having: a total degree of acetyl substitution of 0.4 or greater and 0.9 or less, a proportion of a degree of acetyl substitution at 6-position in the total degree of acetyl substitution of 0% or greater and 18% or less, and a light transmittance at 660 nm of 5% or greater in 4 wt. % aqueous solution.
1-9. (canceled)
A cellulose acetate having:
Dependencies are inferred from the claim text.