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WO/2012/034997A9 |
The present invention relates to modified cellulose fibres comprising cationised cellulose nanocrystals adsorbed on cellulose fibres. The invention relates also to cellulose dispersions comprising the modified cellulose fibres and method...
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WO/2012/057751A1 |
Crosslinked cellulosic polymers, crosslinked cellulosic polymer hydrogels, and methods for their synthesis and use are described. The crosslinked cellulosic polymers include one or more cellulosic polymers and a one or more crosslinkers ...
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WO/2012/050483A1 |
The invention relates to the field of organic chemistry, pharmacology and medicine and concerns a method for producing a copolymer of sodium carboxymethyl cellulose and gossypol having the formula (I), as well as the use thereof in a com...
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WO/2012/043103A1 |
Provided is a cellulose nanofiber which enables the production of a film having excellent oxygen barrier properties and the like. The cellulose nanofiber has a crystallinity of 70% or more, a polymerization degree of 160 or less as deter...
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WO/2012/042467A2 |
The present invention relates to a magnetic hybrid hydrogel comprising a biocompatible, bioreabsorbable polymer crosslinked with magnetic particles which act as crosslinking agents. The polymer can be a polysaccharide chosen from among c...
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WO/2012/040024A1 |
A process for treating a polysaccharide with a dialdehyde in the presence of from 10 to 40 weight percent of water, based on the total weight of polysaccharide and water, is beneficially conducted in a mixing device characterized by a FR...
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WO/2012/035160A1 |
A process is disclosed for conversion of cellulose in an Ionic Liquid medium. The process is characterized in that a cellulose-containing feedstock and an Ionic Liquid are mixed at a temperature below 80 °C. The mixture is heated to a c...
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WO/2012/032931A1 |
[Problem] To provide a molded body which uses a material effectively utilizing a natural material and has low linear expansion coefficient, high light transmittance and adequate moisture permeability. Specifically, to provide a transpare...
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WO/2012/022421A1 |
The aim of the invention is to devise an improved method for producing oxidized cellulose fibers, oxidized cellulose fiber sheet materials, or oxidized cellulose nonwovens which is particularly simple or efficient and environmentally fri...
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WO/2012/017772A1 |
A cellulose-based resin obtained by binding cardanol or a derivative thereof with a flexible component in cellulose or a derivative thereof.
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WO/2012/014213A1 |
A process is disclosed for recovering pure cellulose from a cellulose-containing sludge, the process comprising treating a sludge cellulose source under conditions permitting dissolution of non-cellulose material and suspension of the ce...
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WO/2012/005245A1 |
Disclosed is a novel polysaccharide derivative which can be used in a separating agent for optical isomers. The disclosed novel polysaccharide derivative contains a structure wherein the hydrogen atom of the second hydroxyl group or amin...
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WO/2011/154759A1 |
The present invention relates to method for the preparation of a particulate reversibly-crosslinked polymeric material comprising: treating a particulate water-soluble hydroxyl-functional polymer in a liquid phase comprising a solvent mi...
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WO/2011/154599A1 |
The present invention relates to a process for producing microcellulose comprising subjecting fibrous cellulosic material to acid hydrolysis at a temperature from 10°C to less than 140°C and at a consistency of at least 8% on dry weigh...
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WO/2011/154601A1 |
The present invention relates to a process for producing microcellulose comprising subjecting fibrous cellulosic material to acid hydrolysis at a temperature of at least 40°C and at a consistency of at least 8% on dry weight of the cell...
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WO/2011/154597A1 |
The present invention relates to a process for producing microcellulose comprising a) acidifying fibrous cellulosic material, b) washing the acidified cellulosic material, c) optionally dewatering the washed cellulosic material, and d) h...
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WO/2011/154757A1 |
The present invention relates to a particulate water-soluble polymeric polyol that is treated with a compound represented by formula (I), CR1χ(OR2)4-x (I) wherein R1 is selected from hydrogen, a C1 - C20 alkyl group and an aryl group, R...
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WO/2011/154600A2 |
The present invention relates to a process for producing microcellulose comprising hydrolyzing fibrous cellulosic material with an acid at an elevated temperature or acidifying fibrous cellulosic material followed by washing and hydrolyz...
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WO/2011/151670A1 |
The present technology provides processes for cross-linking cellulose ethers under mild conditions. The processes include exposing a substantially dry cellulose ether film to a polyisocyanate to provide a cross-linked cellulose ether fil...
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WO/2011/139749A2 |
A method of producing dried cellulose nanofibrils includes atomizing an aqueous suspension of cellulose nanofibrils and introducing the atomized aqueous suspension into a drying chamber of a drying apparatus. The aqueous suspension is th...
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WO/2011/138366A1 |
The present invention relates to a novel fibrous composition for paper or card production, which contains an oxidized wastepaper stuff and/or an oxidized mechanical stuff into which 1 to 500 mmol of carboxyl groups per kg and 1 to 200 mm...
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WO/2011/129241A1 |
Provided is a process by which a fine fibrous cellulose having a maximum fiber width of 1000nm or less can be efficiently produced in a high yield through easy and simple means. The process comprises: comminuting wood chips into a wood p...
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WO/2011/129854A1 |
In accordance with one aspect, a thermally regulating construction material comprises a base material and a polymeric phase change material bound to the base material, wherein the base material provides reversible temperature regulation ...
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WO/2011/118748A1 |
Provided is a method for producing a highly concentrated cellulose nanofiber dispersion liquid with outstanding fluidity and transparency, with low energy and high efficiency. Specifically provided is a method wherein a cellulose startin...
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WO/2011/116520A1 |
A refine method of cellulose biomass comprises that not less than 85 weight% of organic polymers in cellulose material are simultaneously hydrolyzed to small molecule organics, in which the weight is based on the total weight of cellulos...
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WO/2011/118746A1 |
Provided is a method for producing a highly concentrated cellulose nanofiber dispersion liquid with outstanding fluidity and transparency, with low energy and high efficiency. Specifically, in the presence of (1) an N-oxyl compound and (...
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WO/2011/114005A1 |
The invention relates to a process for preparing micro-and nanocrystalline cellulose in the presence of an acid. More specifically, the invention relates to a process in which cellulose material is hydrolyzed in the presence of an acid i...
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WO/2011/111612A1 |
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 obtain...
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WO/2011/098962A2 |
The present invention relates to novel anionic polysaccharide derivatives partially functionalised by at least two vicinal hydrophobic groups, said identical or different hydrophobic groups being supported by an at least trivalent radica...
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WO/2011/090428A1 |
This invention concerns the first environmentally benign heterogeneous modification of polysaccharide-based material in native solid state by thiol-ene "click chemistry". The direct reaction of a thiol with an un-activated double or trip...
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WO/2011/089709A1 |
Disclosed is a viscous composition comprising specific kinds of cellulose fibers (A), (A') and (A"), wherein these specific kinds of cellulose fibers (A), (A') and (A") are optionally selected and employed depending on the use of the com...
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WO/2011/086082A1 |
A process for chlorinating polysaccharides or oligosaccharides, which comprises A) dissolving a polysaccharide or oligosaccharide in a solvent system which comprises at least one ionic liquid and B) reacting the polysaccharides or oligos...
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WO/2011/086241A1 |
In a method, cellulose carbamate is dissolved in an alkaline aqueous solution in different steps with solutions having different concentrations. The dissolving is carried out in three steps: 1) prewetting of the cellulose carbamate is pe...
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WO/2011/077402A2 |
The present invention relates to novel amphiphilic polymers comprising hydrophobic groups and methionine groups. The invention also relates to compositions with a regulated release profile comprising said polymers, combined in a non-cova...
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WO/2011/078142A1 |
Provided is a modified microfibrillated cellulose, and also provided are a resin composition and resin composite material comprising the modified microfibrillated cellulose. The modified microfibrillated cellulose is obtained as a result...
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WO/2011/072365A1 |
A process for producing cellulose nanocrystals (CNCs) involves providing a cellulosic material, contacting the cellulosic material with an inorganic persulfate at an elevated temperature to produce CNCs, and recovering the CNCs. The proc...
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WO/2011/074301A1 |
Provided is a method for accelerating the oxidation of primary hydroxyl groups of a cellulosic raw material to achieve efficient introduction of carboxyl groups. Also provided is a process by which a cellulose nanofiber dispersion having...
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WO/2011/071156A1 |
Disclosed is a composite material which is obtained by mixing fine cellulose fibers having a carboxyl group content of 0.1-3 mmol/g with a moldable polymer material that is selected from the group consisting of polymers derived from biom...
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WO/2011/059386A1 |
The present invention pertains to processes for preparing granules comprising cellulose-containing fibers and biocomposites comprising disintegrated fibers, granulesand biocomposites produced by the processes of the invention, as well as...
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WO/2011/059398A1 |
The present invention refers to a nanopaper comprising clay and microfibrillated cellulose nanofibres wherein the MFC nanofibres and the layered clay are orientated substantially parallel to the paper surface. The invention further relat...
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WO/2011/039325A2 |
A method of improving surface strength, fibre tear or linting of a sheet-formed fibrous material formed from an aqueous slurry of cellulose fibre comprising spraying a face of the material with a chemical formulation comprising or consis...
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WO/2011/035310A2 |
The present invention relates to esters of diacids and cellulosic materials and methods for making thereof. The ester has the chemical composition of Formula (I) Formula I where R1, R2, and R3 can be the same or different, and each of wh...
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WO/2011/027084A1 |
The invention relates to a method for washing a material based on polysaccharide that has undergone oxidation by at least one oxidising agent, said method comprising a first step of washing using a first densified fluid inert to said oxi...
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WO/2011/001036A1 |
The present invention relates to surfaces with extremely repellency for liquids. The present invention provides an aerogel coated with at least one type of surface modifier, wherein the aerogel is superamphiphobic. The invention further ...
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WO/2011/002956A1 |
Novel aldehyde-functionalized polysaccharide compositions are described that are more stable in aqueous solution than oxidized polysaccharides or other types of polysaccharides containing pendant aldehyde groups. The aldehyde-functionali...
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WO/2010/140309A1 |
Disclosed is a process for producing a silane-modified cationized polymeric compound, which comprises the steps of: (1) cationizing a water-soluble polymeric compound in a mixed solvent of a water-miscible organic solvent and water in th...
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WO/2010/134357A1 |
Disclosed is a method for producing a cellulose nanofiber dispersion which is appropriately usable in producing composite materials with polymer materials that are soluble in organic solvents over a wide range. The method for producing a...
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WO/2010/134868A1 |
The present invention relates to a method of producing a cellulose based paper, the paper itself and the use thereof where the paper exhibits enhanced mechanical properties. The method involves providing a suspension of well dispersed mo...
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WO/2010/131088A1 |
The present invention relates to a new method for preparing microcrystalline cellulose, comprising a prior step of compaction of the cellulose before degradation of the glucose chains and obtaining the suitable degree of polymerization. ...
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WO/2010/127451A1 |
A method for producing crystalline sulphated cellulose II materials with relatively low degree of polymerization from spent liquors of sulphuric acid (H2SO4) hydrolysis of cellulose has been discovered. The method involves: 1) separating...
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