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WO/2015/029790A1 |
According to one embodiment, a method for producing porous cellulose particles is provided. The method comprises: (a) dissolving cellulose diacetate in a solvent to prepare a cellulose diacetate solution, (b) dispersing the cellulose dia...
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WO/2015/025761A1 |
A method for producing a cellulose derivative, said method being characterized in that a mixed acid anhydride containing specific two types of acyl groups is reacted with cellulose in the presence of a basic catalyst in an organic solven...
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WO/2015/019701A1 |
The problem addressed by the present invention is to provide: a cellulose derivative that achieves superior wavelength dispersion and λ/4 phase difference and that has low phase difference unevenness; a method for producing same; an opt...
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WO/2015/006154A1 |
Integration of a carboxylic anhydride purification system in the manufacturing of cellulose esters may include processes that includes distilling the crude carboxylic anhydride stream (that includes a carboxylic anhydride and a carboxyli...
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WO/2015/003398A1 |
The present invention belongs to the field of organic polymer synthesis technology, and provides cellulose ester soluble in acetone and a direct synthesis process therefor. The synthesis process comprises the following steps: dissolving ...
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WO/2015/006126A1 |
Integration of an acid recovery system in the manufacturing of cellulose esters may include heat recovery from a carboxylic acid recovery distillation column by solvent extracting a weak acid stream to form a first overhead stream and a ...
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WO/2014/195860A1 |
A method for the acylation of lignocellulose by exposing the lignocellulose to an acylation agent in a closed vessel.
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WO/2014/175136A1 |
The objective of the present invention is to provide: an optical film which is substantially capable of providing λ/4 retardation, while being suppressed in changes in the optical performance due to humidity changes, and which also has ...
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WO/2014/159625A1 |
Mixed cellulose esters derived from natural products (e.g., natural cellulose esters) may be produced by methods that include acylating a cellulose with a natural esterification reactant or a derivative thereof to yield a natural cellulo...
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WO/2014/142166A1 |
A cellulose acetate according to the present invention has a total acetyl substitution degree of 0.4 to 1.1 and has a compositional distribution index (CDI), which is a value defined by the below-mentioned equation, of 3.0 or less. CDI =...
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WO/2014/133041A1 |
An embodiment of the present invention relates to cellulose acylate film comprising a compound represented by general formula (I) and having a molar weight U of 515 or less, which is determined as the value obtained by dividing the molec...
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WO/2014/119745A1 |
Provided are: a novel modified nanocellulose which is suitable for the modification of the surface of a nanocellulose or the introduction of a functional group having high functionality into a nanocellulose; and a resin composition conta...
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WO/2014/070092A1 |
The present invention relates to a cellulose nanocrystal functionalized with a group R, a method for preparation of cellulose nanocrystals that are functionalized with one or more groups R and use of functionalized cellulose nanocrystals...
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WO/2014/066463A1 |
A method for producing a polysaccharide ester microsphere may include forming a polysaccharide ester product from a polysaccharide synthesis, wherein the polysaccharide ester product comprises a polysaccharide ester and a solvent; diluti...
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WO/2014/054779A1 |
A cellulose nanofiber has strait sections and curved sections, wherein the average value of the lengths of the straight sections and the average value of the maximum diameters respectively in the straight sections have the relationship r...
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WO/2014/031446A1 |
In a process for preparing an esterified cellulose ether a cellulose ether is esterified with (i) an aliphatic monocarboxylic acid anhydride or (ii) a dicarboxylic acid anhydride or (iii) a combination of an aliphatic monocarboxylic acid...
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WO/2013/180278A1 |
A method for producing a cellulose derivative, the method being characterized by comprising reacting a reactant and cellulose or a derivative thereof in a non-uniform solid/liquid system, forming in a swollen state a cellulose derivative...
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WO/2013/151558A1 |
Preservation of cellulose based products, such as wood, may be accomplished in an environmentally friendly manner by esterification of the wood with rare saccharides, thereby rendering the wood unfavorable for microorganism based degrada...
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WO/2013/147063A1 |
Provided is a method for producing modified cellulose nanofibers, the method being characterized by comprising a step for disintegrating cellulose in a separating resin to produce cellulose nanofibers, and a step for reacting the hydroxy...
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WO/2013/148279A1 |
Methods and systems are provided for producing a carbonate precipitation material comprising stable or reactive vaterite from carbide lime that provides both a source of divalent cations (Ca divalent cations, Mg divalent cations, etc.) a...
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WO/2013/133436A1 |
Provided are: a novel modified nano-cellulose in which the surface of a nano-cellulose is properly modified or a functional group having a high function is introduced properly into a nano-cellulose; a method for producing the modified na...
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WO/2013/130193A1 |
Processing of cellulose, and more particularly, fiber opening and downstream processing and chemistry are provided. A process includes moistening a cellulose sheet stock to a water content in a range from about 20% to about 50%, attritin...
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WO/2013/117641A1 |
The invention relates to a process for acetylation of wood having a density of above 400 kg/m3, particularly, of Southern Yellow Pine, and acetylated wood obtainable by this method. The described acetylation process allows the production...
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WO/2013/112500A1 |
The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a composition having a substituted cellulose acetate having a polar substituent that has an oxyg...
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WO/2013/103251A1 |
Provided are an optical film using a cellulose derivative, useful in an image display device, such as a liquid crystal display or the like, a retardation film and a polarization film using the optical film, and a liquid crystal display h...
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WO/2013/085053A1 |
[Problem] To provide a means which is capable of dissolving a cellulose under mild conditions using a relatively safe substance. [Solution] A method for producing an aqueous cellulose solution, which comprises a step wherein a purified c...
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WO/2013/085397A1 |
The present invention relates to cellulose mixed esters, processes for preparing these and uses of the cellulose mixed esters, for example in coating compositions. The cellulose mixed esters have glass transition temperatures that fall w...
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WO/2013/081138A1 |
Provided are: a rubber composition, wherein modified cellulose fibers are well dispersed in a highly hydrophobic rubber component, and wherein not only the rubber composition is crosslinked but also a crosslinked structure is formed betw...
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WO/2013/063336A1 |
Embodiments of the invention provide regioselectively substituted carbohydrate and polysaccharide derivatives, such as cellulose esters, and methods for preparing them. Particular methods of the invention include deacylation of esters us...
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WO/2013/058244A1 |
The purpose of the present invention is to provide a method for producing a chemically modified cellulose non-woven fabric which does not undergo the problem of discoloration or deterioration in strength when prepared into a composite ma...
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WO/2013/055718A1 |
Instilling an acidic catalyst to a reaction mixture can be beneficial during the acylation of cellulose. Methods described herein can comprise preparing a reaction mixture comprising an acylating agent and cellulose, instilling a catalys...
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WO/2013/055720A1 |
Instilling an acidic catalyst to a reaction mixture can be beneficial during the acylation of cellulose. Methods described herein can comprise preparing a reaction mixture comprising an acylating agent and cellulose, instilling a catalys...
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WO/2013/055717A1 |
Instilling an acidic catalyst to a reaction mixture can be beneficial during the acylation of cellulose. Methods described herein can comprise preparing a reaction mixture comprising an acylating agent and cellulose, instilling a catalys...
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WO/2013/050139A1 |
The invention relates to a chemically modified porous adsorbent having a BET surface area of at least 10 m2/g and to a method for the production thereof, which is suitable for removing fluorinated organic compounds from contaminated flui...
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WO/2013/036863A2 |
In one aspect, provided herein are efficient methods for using ionic liquids. In some embodiments, only a small amount of ionic liquid is lost in a chemical process. For example, described herein is a method for separating one or more bi...
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WO/2013/031444A1 |
These cellulose nanofibers have an average degree of polymerization of 600 to 30,000, an aspect ratio of 20 to 10,000, an average diameter of 1 to 800 nm, an X-ray diffraction pattern with an Iβ-type crystal peak, and a hydroxyl group t...
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WO/2013/031601A1 |
The purpose of the present invention is to provide: an optical film which has excellent transparency, excellent productivity (without defects), excellent heat resistance and low thermal expansion; a method for producing an optical film w...
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WO/2013/031391A1 |
These cellulose nanofibers have an average degree of polymerization of 600 to 30,000, an aspect ratio of 20 to 10,000, an average diameter of 1 to 800 nm, and an X-ray diffraction pattern with an Iβ-type crystal peak. Further, a hydroxy...
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WO/2013/032016A1 |
A cellulose acylate film containing a cellulose acylate, that has an aromatic group-containing acyl group and satisfies the formulae (I) and (II): (I) 0.9 ≤ DSA < 2.0 (II) 0.9 ≤ DS < 2.0 wherein DSA is a degree of substitution with t...
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WO/2013/028489A1 |
Cellulose acetates and processes for producing same. The process involves esterifying a cellulose containing material in the presence of a densified gas such as supercritical carbon dioxide to form a cellulose acetate product having a de...
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WO/2013/022025A1 |
The present invention relates to a process for producing microfibrous cellulose which comprises: a carboxy group introduction step in which a fibrous raw material comprising cellulose is treated with at least one carboxylic acid-based co...
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WO/2013/016982A1 |
The present invention relates to the technical field of chemical celluloses. Disclosed are a cellulose acetate microsphere preparation method and product prepared thereby. The cellulose acetate microsphere preparation method of the prese...
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WO/2012/141904A1 |
Regioselectively substituted cellulose esters having a plurality of aryl-acyl substituents and a plurality of alkyl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in ...
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WO/2012/141903A1 |
Regioselectively substituted cellulose esters having a plurality of aryl-acyl substituents and a plurality of alkyl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in ...
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WO/2012/141902A1 |
Regioselectively substituted cellulose esters having a plurality of aryl-acyl substituents and a plurality of alkyl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in ...
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WO/2012/141901A1 |
Regioselectively substituted cellulose esters having a plurality of aryl-acyl substituents and a plurality of alkyl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in ...
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WO/2012/137622A1 |
Provided is a cellulose resin resulting from bonding cellulose or a derivative thereof and cardanol or a derivative thereof using a hydroxyl group of cellulose or a derivative thereof and the hydroxyl group of cardanol or a derivative th...
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WO/2012/133003A1 |
The present invention provides a method for manufacturing an ester compound of a cellulose derivative, which suppresses a reduction in the degree of polymerization, and an ester compound of a cellulose derivative obtained from the manufa...
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WO/2012/128993A1 |
A pigmented latex composition having a solids content in a range from 60 wt% to 95 wt% includes a) an aqueous dispersion of a polymeric binder that is a copolymer including units of vinyl acetate, ethylene and at least one ethylenically ...
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WO/2012/119229A1 |
The invention relates to highly charge group modified cellulose fibers which can be directly used as novel strengthening agent in papermaking, or as super-absorbent cellulosic material, or very easily made into cellulose nanostructures, ...
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