Patent classifications
C09D101/04
Nanocellulose compositions and processes to produce same
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.
Nanocellulose compositions and processes to produce same
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.
SUSTAINED-RELEASE COMPOSITE PARTICLES, METHOD FOR PRODUCING SUSTAINED-RELEASE COMPOSITE PARTICLES, DRY POWDER, AND WALLPAPER
Sustained-release composite particles having improved dispersion stability and improved sustained-release properties, and exhibiting longer-term effects, a method for producing the sustained-release composite particles, a dry powder comprising the sustained-release composite particles, and wallpaper comprising the sustained-release composite particles. The sustained-release composite particles comprise core particles containing at least one type of polymer and at least one type of functional component, and micronized cellulose coating at least a part of the surface of the core particles, the core particles and the micronized cellulose being inseparable from each other.
A PROCESS FOR THE PREPARATION OF ESSENTIAL OILS MODIFIED NANOCELLULOSE AND APPLICATION THEREOF
The present invention provides a process for the preparation of essential oil modified nanocellulose and applications thereof. The invention further provides a process wherein the essential oil is covalently bonded with the nanocellulose such that the essential oil does not leach out. The edible coatings comprising the developed essential oil modified nanocellulose thus exhibit a prolonged antimicrobial effect.
COMPOSITE PARTICLES, METHOD OF PRODUCING COMPOSITE PARTICLES AND DRY POWDER OF COMPOSITE PARTICLES, SKIN APPLICATION COMPOSITION AND METHOD OF PRODUCING THE SKIN APPLICATION COMPOSITION
Composite particles that are biodegradable and easy to handle while maintaining the characteristics of cellulose nanofibers, a method of producing composite particles, a dry powder containing the composite particles, and a skin application composition and a method of producing the skin application composition. A composite particle contains at least one type of particle and fine cellulose with which at least part of a surface of the particle is coated, wherein the particle and the fine cellulose are inseparable.
METHOD FOR PRODUCING CELLULOSE FIBER-CONTAINING FILM, AND RESIN COMPOSITION, FILM AND LAMINATE
The present invention is intended to provide a resin composition capable of suppressing separation between ultrafine cellulose fibers and a resin, and also capable of forming a film having excellent adhesiveness to a base material. The present invention relates to a method for producing a cellulose fiber-containing film, comprising: mixing cellulose fibers having a fiber width of 1000 nm or less with organic onium; mixing the cellulose fiber mixture obtained in the mixing step, an organic solvent and a resin to obtain a resin composition; and applying the resin composition onto a base material, wherein the cellulose fibers have anionic groups, and the content of the anionic groups is 0.50 mmol/g or more, and the content of the cellulose fibers in the resin composition is 1% by mass or more.
CELLULOSE FIBER-CONTAINING COMPOSITION AND PAINT
It is an object of the present invention to provide a cellulose fiber-containing composition and a cellulose fiber-containing paint, the particles (aggregates) of which are suppressed in coated products. According to the present invention, provided is a cellulose fiber-containing composition comprising cellulose fibers having a fiber width of 1000 nm or less and water, wherein the image clarity (comb width: 0.125 mm) of a coating film obtained from the following conditions is 55% or more:
(Conditions)
the cellulose fiber-containing composition, an acrylic resin in an amount of 156 parts by weight based on 1 part by weight of the cellulose fibers, and isocyanate in an amount of 44 parts by weight based on 1 part by weight of the cellulose fibers, are mixed with one another to obtain a coating solution, which is then applied onto a smooth polyethylene terephthalate plate to a thickness of 30 m, using an applicator, and immediately after the application of the coating solution, it is dried at 80 C. for 30 minutes.
FILM COMPRISING HYDROPHOBIZED CELLULOSE FIBERS AND OIL
The present invention relates to a film comprising hydrophobically modified cellulose fibers in which cellulose fibers are bound to a modifying group at one or more members selected from anionic groups and hydroxyl groups, and an oil having an SP value of 10 or less. The film of the present invention can be utilized in the fields of materials for packaging containers for cosmetics and foods.
FILM COMPRISING HYDROPHOBIZED CELLULOSE FIBERS AND OIL
The present invention relates to a film comprising hydrophobically modified cellulose fibers in which cellulose fibers are bound to a modifying group at one or more members selected from anionic groups and hydroxyl groups, and an oil having an SP value of 10 or less. The film of the present invention can be utilized in the fields of materials for packaging containers for cosmetics and foods.
CONTROLLED RELEASE NUTRIENTS BY COATING
The present disclosure provides a product of coated nutrients for controlled release, a method for coating the nutrients for controlled release and a coating composition for coating the nutrients for controlled release.