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WO/2015/105030A1 |
A method for manufacturing cellulose comprising chemical pulp as raw material and having a polymerization degree of 350 or less, wherein the method for manufacturing cellulose having the polymerization degree of 350 or less includes at l...
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WO/2015/101941A1 |
A process for producing desired compounds from biomass, including treating a lignocellulosic waste stream in some embodiments. The waste stream is conditioned under acidic or basic conditions, and is then treated in a catalytic reaction ...
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WO/2015/094093A1 |
A dewatering roll (10) comprises a roll body (20), a mantle support structure (30) and a mantle (40). The mantle support structure (30) is attached around the roll body (20). The mantle (40) is attached against an outer surface (36) of t...
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WO/2015/092146A1 |
The present invention relates to a process for producing a fibrillated cellulose material. In the invention fibrillated cellulose is produced enzymatically by using a low energy demanding mechanical mixer such as plough share mixer, to e...
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WO/2015/082774A1 |
Method for making modified cellulose products comprises - processing cellulose pulp to modified cellulose pulp at a manufacturing location to increase the susceptibility of fibers to disintegration, - setting the modified cellulose pulp ...
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WO/2015/074120A1 |
A nanocellulose material of plant origin comprising nanocellulose particles or fibres derived from a plant material having a hemicellulose content of 30% or higher (w/w) (calculated as a weight percentage of the lignocellulosic component...
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WO/2015/068128A1 |
The invention discloses a recycled unit, which includes a unit consisting of fibrous material, paper pulp, recycled waste paper and/or recycled cardboard which have been softened and shredded in a hammer mill; soaked in water to soften i...
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WO/2015/068019A1 |
The present invention relates to a process for dewatering a slurry comprising a microfibrillated cellulose wherein the process comprises the following steps of, providing a slurry comprising a microfibrillated cellulose and a liquid, sub...
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WO/2015/067446A1 |
Method for delignifying and bleaching pulp, comprising a first bleaching stage using hydrogen peroxide in the presence of a molybdate or a tungstate in an acidic aqueous mixture, followed by a second bleaching stage using hydrogen peroxi...
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WO/2015/064209A1 |
Provided is a process for recovering pulp fiber from used sanitary goods which contain both pulp fiber and a superabsorbent polymer and producing a recycled pulp which contains little ash and which is reusable for sanitary goods. This pr...
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WO/2015/061804A1 |
Described herein is a process for conversion and upgrading of biomass to products. The process involves converting the biomass to primary lignin-derivatives and primary cellulose/hemicellulose derivatives, catalytically treating the prim...
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WO/2015/061802A1 |
Described herein are processes for one-step delignification and hydrodeoxygenation of lignin fraction a biomass feedstock. The lignin feedstock is derived from by-products of paper production and biorefineries. Additionally described is ...
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WO/2015/039962A1 |
The use of a GH78 enzyme in the bleaching of pulp for preparing paper materials, such as paper, linerboard, corrugated paperboard, tissue, towels, corrugated containers and boxes.
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WO/2015/037424A1 |
According to one embodiment, a method for producing cellulose is provided, in which a chemical pulp and a mixed solution comprising 1.0 to 30.0% by weight of sulfuric acid, 0.5 to 40% by weight of hydrogen peroxide and 50.0 to 94.0% by w...
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WO/2015/036655A1 |
The invention relates to impregnation system for treating wood chips in mechanical production of pulp or alkaline peroxide mechanical production of pulp. The system comprises at least 5 weight-% of a non-ionic surfactant, which is a reac...
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WO/2015/033025A1 |
Composite body comprises nanofibrillar cellulose (NFC) together with abrasive particles (AP). The nanofibrillar cellulose forms a 3-dimensional connecting network for the abrasive particles (AP). The abrasive particles have a hardness ab...
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WO/2015/034426A1 |
There is provided a package material comprising an oxygen barrier polymer film, wherein the film comprises a polymer obtainable by a process comprising the steps of: a) oxidising cellulose fibers to ultimately obtain cross-linked cellulo...
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WO/2015/028719A1 |
A method for catalytic oxidation of cellulose using a heterocyclic nitroxyl radical as catalyst and main oxidant acting as oxygen source comprises, before the catalytic oxidation of the cellulose, pretreatment of the cellulose - in an al...
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WO/2015/026507A1 |
Methods to control organic contaminants in fibers are described. One method involves contacting the fibers with a) at least one zeolite and optionally b) detackifier, or an ester hydrolyzing enzyme, or both, for a sufficient time and in ...
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WO/2015/018908A1 |
The present invention provides an enzymatic method for reducing the content of hexenuronic acids in a chemical cellulosic pulp and/or improvement of the brightness of cellulosic pulp using haloperoxidase.
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WO/2015/021130A1 |
A process for treating a cellulosic material comprising extracting hemicellulose from the cellulosic material with an extractant comprising a cellulose solvent and a co-solvent to selectively extract hemicellulose therefrom and separatin...
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WO/2015/015056A1 |
A method for catalytic oxidation of cellulose using a heterocyclic nitroxyl radical as catalyst, main oxidant acting as oxygen source, and an activator of the heterocyclic nitroxyl radical, comprises - a preliminary activation step of th...
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WO/2015/016431A1 |
The present invention relates to a fiberization method of knots for the reuse of undigested knots during the digestion of wood chips for manufacturing pulp outside a pulp production process, fiberized knots using same and paper products ...
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WO/2015/013146A1 |
The invention provides methods and compositions for measuring the formation of scale within a process system. The method involves measuring changes in the cell fouling as reflected on the refraction index measurements of a liquid medium ...
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WO/2015/007953A1 |
The invention relates to a method of producing oxidized or microfibrillated cellulose (MFC). According to the invention there is provided an aqueous pulp suspension with a consistency of at least 15 %, and at least one oxidant is added t...
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WO/2015/006362A1 |
The present disclosure is directed to the use of microemulsions and microemulsion concentrates for removal of contaminants from cellulosic materials, such as waste papers.
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WO/2014/199101A1 |
The invention relates to a method for treating chemical pulp, comprising a step of treating the pulp with ozone following a step of alkaline extraction, wherein the alkaline extraction is carried out in the presence of magnesium ions (Mg...
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WO/2014/195478A1 |
The present invention relates to compositions suitable for use in the bleaching of pulps, comprising one or more particulate alkaline earth metal oxides or alkaline earth metal hydroxides or mixtures thereof; and one or more pitch contro...
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WO/2014/191243A1 |
The invention relates to an assembly for producing a fibrous material suspension (1) for a headbox of a machine for producing paper, board, tissue or a different fibrous material web having a mixing device (2), in which the fibrous mater...
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WO/2014/188067A1 |
The invention relates to a liquid antiscalant composition for reducing calcium oxalate scale formation. The composition comprises a polyanionic antiscalant agent having a plurality of anionic groups, which antiscalant agent is selected f...
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WO/2014/184438A1 |
In a method for producing nanofibrillar cellulose, cellulose based fibre material in dispersion is processed for separating fibrils. The method comprises a first step where the fibre material is supplied to a disperser (10), where it flo...
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WO/2014/182224A1 |
The invention is related to an apparatus for washing and/or dewatering pulp, the apparatus comprising two rotatable press rolls (202, 204) with a nip (238) between, each press roll (202, 204) including an axis (203, 205), a mantle elemen...
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WO/2014/179673A1 |
A process for treating a cellulosic material comprising extracting the cellulosic material with an extractant to selectively extract hemicellulose therefrom and separating the extracted hemicellulose to form a cellulosic product comprisi...
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WO/2014/179702A1 |
A process for converting a starting material to a purified pulp material, comprising removing lignin from a starting material to form a wet pulp comprising at least 5 wt.% water, extracting hemicellulose from the wet pulp with an extract...
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WO/2014/178780A1 |
A method and system for washing cellulose pulp are provided. The pulp is washed two times in the same washing space of a washing apparatus (10) with a movable permeable processing surface (11), filtrate from the pulp passes through the p...
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WO/2014/170753A1 |
High permeability curly fibers with enhanced fiber strength are produced by mercerizing cellulosic fibers. The fibers have relatively high values for curl, kink level, wet tensile strength, and bulk density when compared with current fib...
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WO/2014/170546A1 |
A method of producing regenerated cellulose and hemicellulose from a fibre pulp which is prepared by using chemical cooking. Hemicellulose and, correspondingly, cellulose is separated from the pulp, in order to form separate fractions, b...
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WO/2013/121104A9 |
The invention relates to a method for processing chemically modified fibril cellulose. The method comprises introducing chemically modified fibril cellulose material to a thermal drying device (20) comprising a belt (22) in such a way th...
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WO/2014/153654A1 |
A method for the production of cellulose films with at least one hydrophobic or less hydrophilic surface, or with at least one surface with a water contact angle () in a range from 55 to less than 00 is described. The method inv...
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WO/2014/147293A1 |
The field concerned is NFC or MFC production using chemical pulping. Herein is provided an environmentally friendly and improved pulping and papermaking method and dissolution and digestion method of cellulosic mate- rial. It is especial...
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WO/2014/149302A1 |
Compositions and methods that preserve and enhance the brightness of pulp, and also improve the color of pulp or paper, when applied during different stages of a paper making process, are disclosed. The compositions and methods maintain ...
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WO/2014/139505A1 |
The invention relates to a screw press (1) having a delivery pipe (2), in which a rotatable delivery spiral (3) is provided, and having a delivery pipe cone (11), into which the delivery spiral leads. Dewatering openings (14) are provide...
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WO/2014/140852A2 |
A pulp fiber with an enhanced carbonyl content resulting in improved antimicrobial, anti-yellowing and absorptive properties. Methods for making the kraft pulp fiber and products made from it are also described.
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WO/2014/142651A1 |
This invention relates to compositions that have utility, amongst others, in the stabilization of suspension particles or gas bubbles in fluid water-based compositions and/or in conferring shear thinning behavior to such fluid water-base...
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WO/2014/135335A1 |
The invention relates to a method for forming and treating a fibrous material suspension that is suitable for the production of paper for graphical or hygiene purposes, or cover layers for boxboard or packaging papers, in which said fibr...
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WO/2014/131592A1 |
The invention relates to a method for forming and handling a fiber suspension suitable for producing cardboard or packaging paper. The fiber suspension is at least partly guided from a dissolving stage (3) to a dewatering stage (10, 11, ...
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WO/2014/129958A1 |
The invention relates to a screw conveyor (1) for lignocellulose containing material, which screw conveyor (1) comprises a housing (2), an inlet (7), an outlet (8) and a screw (3) for transporting the lignocellulose containing material t...
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WO/2014/116468A1 |
Compositions for and methods of stabilizing bleaching and making paper or paperboard having suitable brightness are provided. A stabilizer composition is provided containing aminocarboxylate, hydroxy acid, and either polyamino acid or im...
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WO/2014/111854A1 |
In the present disclosure there is provided a method of producing a high solids content microfibrillated cellulose suspension by passing a precursor material through a homogenizer or fluidizer, thereby reducing the particle size of the p...
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WO/2014/110675A1 |
The present invention relates to novel polypeptides and enzymes (e.g., thermostable proteins and enzymes) having activities relating to biomass processing and/or degradation (e.g., cell wall deconstruction), as well as polynucleotides, v...
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