A composition comprising nanocellulose is disclosed, wherein the nanocellulose contains very low or essentially no sulfur content. The nanocellulose may be in the form of cellulose nanocrystals, cellulose nanofibrils, or both. The nanocellulose is characterized by a crystallinity of at least 80%, an onset of thermal decomposition of 300 F. or higher, and a low light transmittance over the range 400-700 nm. Other variations provide a composition comprising lignin-coated hydrophobic nanocellulose, wherein the nanocellulose contains very low or essentially no sulfur content. Some variations provide a composition comprising nanocellulose, wherein the nanocellulose contains about 0.1 wt % equivalent sulfur content, or less, as SO.sub.4 groups chemically or physically bound to the nanocellulose. In some embodiments, the nanocellulose contains essentially no hydrogen atoms (apart from hydrogen structurally contained in nanocellulose itself) bound to the nanocellulose. Various compositions, materials, and products may incorporate the nanocellulose compositions disclosed herein.

A method of manufacturing a fine cellulose fiber dispersion liquid includes: an oxidation process in which a cellulose is subjected to an oxidation treatment to obtain an oxidized cellulose; and a dispersion process in which the oxidized cellulose obtained in the oxidation process is subjected to a dispersion treatment in a water-based medium in which a pH thereof is adjusted to 4 to 12 using either an ammonia water or an organic alkali to obtain the fine cellulose fiber dispersion liquid.

The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.

The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.

A method for preparing a cellulose dispersion includes oxidizing cellulose; preparing cellulose nanofibers by defibrating the oxidized cellulose; and adding a water-soluble polymer and inorganic particles to the dispersion containing the cellulose nanofibers.

A method for preparing a cellulose dispersion includes oxidizing cellulose; preparing cellulose nanofibers by defibrating the oxidized cellulose; and adding a water-soluble polymer and inorganic particles to the dispersion containing the cellulose nanofibers.

A method for preparing a cellulose dispersion includes oxidizing cellulose; preparing cellulose nanofibers by defibrating the oxidized cellulose; and adding a water-soluble polymer and inorganic particles to the dispersion containing the cellulose nanofibers.

Disclosed is a dispersion liquid containing fine cellulose fiber capable of uniform dispersion in an organic solution or resin and capable of use in electronic components. Further disclosed are a laminate body and a cellulose film obtained from fine cellulose fibers with improved water resistance. Further disclosed are a fine cellulose fiber dispersion liquid which forms a film as an undercoat of a base material, in particular of a base material made from naturally occurring materials such as polylactic acid, wherein said film has an improved adhesiveness with respect to said base material; and a laminate body using the same. The fine cellulose fiber dispersion liquid contains at least fine cellulose fibers, and either an ammonia or an organic alkali.

Disclosed is a dispersion liquid containing fine cellulose fiber capable of uniform dispersion in an organic solution or resin and capable of use in electronic components. Further disclosed are a laminate body and a cellulose film obtained from fine cellulose fibers with improved water resistance. Further disclosed are a fine cellulose fiber dispersion liquid which forms a film as an undercoat of a base material, in particular of a base material made from naturally occurring materials such as polylactic acid, wherein said film has an improved adhesiveness with respect to said base material; and a laminate body using the same. The fine cellulose fiber dispersion liquid contains at least fine cellulose fibers, and either an ammonia or an organic alkali.

A cellulose based anti-viral/anti-microbial coating.