| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 162070000 |
Treatment with particular chemical
| 95 |
| 162004000 |
Waste paper or textile waste
| 67 |
| 162029000 |
With regeneration, reclamation, reuse, recycling or destruction of digestion fluid
| 63 |
| 162009000 |
With chemical or physical modification of liberated fiber
| 37 |
| 162063000 |
Gas, vapor or mist contact
| 36 |
| 162060000 |
With washing
| 34 |
| 162014000 |
Including recovery of organic by-product
| 31 |
| 162017000 |
Continuous chemical treatment or continuous charging or discharging
| 29 |
| 162028000 |
With plural or specified mechanical defibering step
| 18 |
| 162049000 |
With testing, sampling or analyzing
| 17 |
| 162055000 |
With classifying, separating or screening of pulp (solids from solids)
| 16 |
| 162050000 |
Utilizing electrical or radiant energy
| 15 |
| 162057000 |
With agitation or forced circulation
| 13 |
| 162024000 |
Chemical treatment after start or completion of mechanical defibration
| 12 |
| 162052000 |
Charging and/or discharging fibrous material
| 10 |
| 162021000 |
Defibration by projection or explosion
| 9 |
| 162048000 |
With cleaning, preserving or conditioning of apparatus
| 9 |
| 162091000 |
Particular raw cellulosic materials
| 8 |
| 162056000 |
With squeezing, compression, rubbing, kneading
| 7 |
| 162010000 |
With non-fiber material added to product
| 6 |
| 162013000 |
With formation of web or article
| 6 |
| 162023000 |
Mechanical defibration in the presence of heated gas or gas under pressure | 4 |
| 20080277082 | HIGH PRESSURE COMPRESSOR AND STEAM EXPLOSION PULPING METHOD - A steam explosion pulping method including: impregnating a cellulosic biomass feed material in a pressurized reactor vessel; discharging the impregnated feed material from the vessel to a high pressure compressor; elevating a pressure of the feed material in the compressor; discharging the pressurized feed material from the compressor to a conduit coupled to a blow valve; rapidly reducing pressure of the pressurized feed material as the feed material passes through the blow valve, and pulping the feed material by expansion of fluid in the feed material during the rapid pressure reduction. | 11-13-2008 |
| 20090071616 | METHOD OF UPGRADING BIOMASS, UPGRADED BIOMASS, BIOMASS WATER SLURRY AND METHOD OF PRODUCING SAME, UPGRADED BIOMASS GAS, AND METHOD OF GASIFYING BIOMASS - This method of upgrading a biomass comprises: an upgrading step for performing upgrading treatment of a cellulose based biomass with an oxygen/carbon atomic ratio of at least 0.5, in presence of water and under a pressure of at least saturated water vapor pressure, and reducing said oxygen/carbon atomic ratio of said biomass to no more than 0.38, and a separation step for separating an upgraded reactant obtained from said upgrading step into a solid component and a liquid component. | 03-19-2009 |
| 20090151880 | METHOD AND SYSTEM TO ENHANCE FIBER DEVELOPMENT BY ADDITION OF TREATMENT AGENT DURING MECHANICAL PULPING - A mechanical pulping method including: defibrating a comminuted cellulosic material; mechanically refining the defibrated cellulosic material in a primary refining step; introducing to the cellulosic material at least one of a chemical agent and a biological during the defibration step or the mechanical refining step, and producing pulp from the refined and defibrated cellulosic material. | 06-18-2009 |
| 20110114273 | ENVIRONMENTALLY BENIGN TCF BLEACHING SEQUENCES FOR AS/AQ WHEAT STRAW PULP - This invention reports an environmentally benign method of delignifying bleaching sequences to gain more than 80% ISO brightness for alkaline sulfite-anthraquinone (AS/AQ) wheat straw pulp comprising of AOPsYP | 05-19-2011 |
| 162026000 |
Simultaneous mechanical defibration and chemical treatment | 3 |
| 20100186910 | Four stage alkaline peroxide mechanical pulpings - A process for applying chemicals, such as an alkaline peroxide pretreatment ( | 07-29-2010 |
| 20100186911 | Process for Increasing the Refiner Production Rate and/or Decreasing the Specific Energy of Pulping Wood - The present invention relates to processes for enhancing a refiner's production rate and/or reducing the specific energy consumption for a freeness target through the use of lubricant(s) or carrier(s)/frictionizer(s), respectively. | 07-29-2010 |
| 20100224333 | METHOD AND CHEMICAL COMPOSITION TO IMPROVE EFFICIENCY OF MECHANICAL PULP - The invention provides a composition of matter and a method, which enhance the process of mechanically pulping paper precursors. The composition of matter includes a small quantity of a reducing agent and a source of alkali. When added to the pulped material, e.g., wood chips, before or during mechanical pulping, the composition reduces the energy cost of the operation. In addition, not only does the composition also does not reduce the brightness of pulp, the composition can also enhance the effectiveness of subsequent bleaching processes. | 09-09-2010 |
| 162047000 |
With heat recovery | 3 |
| 20090014137 | APPARATUS AND METHOD FOR A LIQUID GUN - An apparatus for cleaning and cooling a liquor nozzle, the nozzle including at least a liquor tube for feeding liquor and chemicals into a furnace of a recovery boiler. The apparatus includes an outer casing tube, which defines a space whereto conduits are provided for introducing water and steam to generate an emulsion or a conduit for introducing emulsion generated by the water and steam and the surface of which is provided with openings, such as pores or holes, for discharging the emulsion formed by water and steam through the outer casing. | 01-15-2009 |
| 20100012283 | METHOD TO USE HEAT ENERGY FROM BLACK LIQUOR - The method is for retrieving heat from black liquor wherein the black liquor is withdrawn from a digester in association with the production of cellulose pulp. The black liquor at the withdrawal stage maintains a first withdrawal temperature. At least a part of the black liquor is led to a heat exchanger. An exchange of heat takes place in the heat exchanger between the black liquor and a bleaching filtrate that has been obtained from the bleaching plant. The exchange of heat results in the bleaching filtrate experiencing a raise in temperature of at least 5° C., after which the heated bleaching filtrate is used in the bleaching plant. | 01-21-2010 |
| 20100224335 | HEAT RECOVERY FROM SPENT COOKING LIQUOR IN A DIGESTER PLANT OF A CHEMICAL PULP MILL - A method for heating white liquor or a mixture of white liquor and another liquid for use in a digester system of a chemical pulp mill, the method including the steps of: producing black liquor in the digester system; extracting black liquor from the digester system, flashing the extracted black liquor and thereby generating flashed black liquor and flash vapor; directing the flash vapor through a heat exchanger to heat a white liquor flowing through the heat exchanger; the flashed black liquor flows to at least one of a heat recovery or evaporation stage, and the heated white liquor flows to the digester system. | 09-09-2010 |
| 162061000 |
Regulatory | 2 |
| 20090139671 | ARRANGEMENT AND METHOD FOR THE CONTINUOUS STEAM PRE-TREATMENT OF CHIPS DURING THE PRODUCTION OF CELLULOSE PULP - The arrangement and method are for the steam pre-treatment of chips during the production of cellulose pulp to avoid the blow-through of gases in the steam pre-treatment vessel. This prevents foul-smelling gases from being released into the atmosphere. Spreader nozzles for the injection of cooling fluid are arranged in the gas phase of the steam pre-treatment vessel. In the event of the risk for blow-through of steam, cooling that is proportional to the risk is activated. It is possible to avoid the emission of gases from the chip bin when interruptions in the process occur, whereby the release of odours into the surroundings can be minimised. | 06-04-2009 |
| 20110139384 | METHOD AND AN APPARATUS FOR CONTROLLING A FLOW OF PULP SUSPENSION - Apparatus and methods for controlling the flow of a pulp suspension from a container in which the pulp is processed or stored are disclosed. The container is pressurized to a first pressure and includes an outlet for the pulp suspension, a pump includes an inlet and an outlet, and the pump inlet is connected to the container. The pulp suspension is fed from the inlet to the outlet of the pump and provides a controlled decrease in pressure to which the pulp suspension is subjected in the pump during such transport, and the flow from the container is controlled by adjusting this controlled decrease in pressure. | 06-16-2011 |
| 162003000 |
Mineral fibers | 2 |
| 20100218907 | Non-Dried Continuous Bulk Packaged Roving For Long Fiber Thermoplastics And A System For Collecting Same - The formation and bulk packaging of continuous wet roving is provided. Glass fibers are attenuated from a bushing, gathered into a roving, and collected as a loose, wet mass in a container assembly. A rotating deflector assembly is used to reduce the velocity of the wet roving in-line and to direct the wet continuous roving into the container. The deflector is formed of a plurality of fingers extending radially from a central hub. The curved end of the fingers permits both for the capture and easy release of the roving from the deflector. A stripper assembly may be used to remove the wet continuous roving from the fingers. After being released from the fingers, the wet roving is permitted to fall into the container assembly under the force of gravity. The wet bulk continuous roving can be utilized in various processes that form long fiber thermoplastics and reinforced composite articles. | 09-02-2010 |
| 20120247695 | Inorganic fiber paper and method of producing the same - Inorganic fiber paper includes first biosoluble inorganic fibers having an average fiber diameter of 3 to 7 μm, second biosoluble inorganic fibers having an average fiber diameter of 2 to 3 μm, and a binder, the average fiber diameter of the second biosoluble inorganic fibers being smaller than that of the first biosoluble inorganic fibers. | 10-04-2012 |
| 162020000 |
With decortication or mechanical preparation of textile fibers | 2 |
| 20090101294 | PROCESS FOR MAKING BAMBOO FIBERFILL AND ARTICLES THEREOF - A process for producing bamboo fiberfill from raw bamboo fiber includes, obtaining a bale of the raw bamboo fiber, picking up and separating the raw bamboo bale fiber into tufts of bamboo fiber with a bale opener, feeding the bamboo fiber tufts into a blending hopper configured to blend the bamboo fiber tufts, feeding the blended bamboo fiber tufts into a beater configured to open the bamboo fiber tufts, and feeding the opened bamboo fiber tufts into a fine opener configured to reduce the size of the opened bamboo fiber tufts and refine the opened bamboo fiber tufts into the bamboo fiberfill, wherein the bamboo fiberfill has a fiber length of about 30 millimeters to about 60 millimeters and a linear density of about 0.5 denier to about 5.0 denier. | 04-23-2009 |
| 20130276998 | PRETREATMENT APPARATUS FOR REMOVING PITH FROM CORNSTALK, PULP MANUFACTURING METHOD USING CORNSTALK, AND PAPER MANUFACTURING METHOD USING CORNSTALK PULP - A pretreatment apparatus for removing pith from cornstalks and separating husks therefrom includes a casing that receives cornstalks in a free-fall manner through an upper side thereof and allows the corn stalks to be discharged through a lower side thereof, and a rotor inserted into the casing and rotating inside the casing to hit cornstalk chips. The rotor includes a shaft inserted into the casing to be rotated by external force, a cover member holding the shaft so as to allow rotation of the shaft therein and connected to the entirety or part of an open upper side of the casing, and a hitting unit formed on a circumference of the shaft and hitting the corn stalks input into the casing. | 10-24-2013 |
| 162002000 |
Animal fibers | 1 |
| 20110259536 | Process For Making Material For Acquisition Of Liquids And Disposable Absorbent Article Comprising The Material - A process for making a material for acquisition of liquids comprising individualized, crosslinked cellulosic fibers having an effective amount of a polymeric acid crosslinking agent reacted with the fibers in intra-fiber crosslink ester bond form. A process for making disposable absorbent articles, such as diapers, containing this material. | 10-27-2011 |
| 162053000 |
Vacuum treatment | 1 |
| 20150053359 | APPARATUS AND METHOD FOR FORMING A CONTINUOUS WEB OF FIBERS - A vacuum draw apparatus for preparing a fiber and/or particle web comprising a means for drawing a vacuum on a mass of fibers and/or particles, said vacuum draw means having an opening for applying a vacuum to said mass of fibers and/or particles, an access gate having a patterned opening located between the mass of fibers and/or particles and opening of said vacuum means, and means for moving said access gate, whereby the vacuum draw system will provide an oscillating pull on a mass of fibers and/or particles to work said mass to redistribute and/or further consolidate the fibers and/or particles. | 02-26-2015 |
| Entries |
| Document | Title | Date |
|---|
| 20080277080 | Method for the Genetic Modulation of the Biosynthesis of Hemicelluloses, Cellulose and Uronic Acids in Plant Cells Using Gene Expression Cassettes - The present invention refers to gene expression cassettes encoding enzymes involved in the metabolic pathway for the biosynthesis of hemicelluloses, cellulose and/or uronic acids, and to a method for genetic transformation of plant cells through the introduction of one or more gene expression cassettes from the present invention, and the overexpression and repression of these genes in plants. | 11-13-2008 |
| 20110005696 | DEVICE AND METHOD FOR DILUTION OF CELLULOSE PULP - A device and a method for dilution of cellulose pulp of a consistency of between 20% and 45%. The cellulose pulp is arranged to fall down in a pulp chute during an addition of dilution liquid. The dilution is performed to a consistency in the range of 6-18%, above a level of established diluted pulp in a bottom of a pulp chute. A central distribution device with nozzles for addition of dilution liquid to the falling pulp above the level of established diluted pulp in the bottom of the pulp chute is arranged in the center of the pulp chute. The nozzles of the distribution device are fed with dilution liquid via a pipe that is arranged at least partly through the pulp chute. | 01-13-2011 |
| 20130112359 | PRODUCT AND PROCESSES FROM AN INTEGRATED FOREST BIOREFINERY - An omnibus process of pulping and bleaching lignocellulosic materials in which a charge of a lignocellulosic material is biopulped and/or water extracted prior to pulping and bleaching. The lignocellulosic material may be mechanically pulped and bleached in the presence of an enzyme that breaks lignin-carbohydrate complexes. The aqueous extract in embodiments including a water extract step is separated into acetic acid and hemicellulose sugar aqueous solutions. | 05-09-2013 |
| 20140338849 | PAPER PRODUCT AND A METHOD AND A SYSTEM FOR MANUFACTURING FURNISH - The invention relates to a method for manufacturing furnish for a paper product, wherein the manufactured furnish contains fibril cellulose material. The method includes introducing first raw material to a system, which first raw material includes cellulose pulp, introducing second raw material to the system, which second raw material includes cellulose fibers that are oxidized by nitroxyl-mediated oxidation of hydroxyl groups of the cellulose, conveying the first raw material and the second raw material to a refiner, and refining and mixing the first raw material and the second raw material in the refiner in order to produce furnish including fibril cellulose material. In addition, this invention relates to a system for manufacturing furnish and to a paper product. | 11-20-2014 |
| 20160040358 | SCREW PRESS WITH A DELIVERY PIPE AND METHOD FOR OPERATING A SCREW PRESS - A screw press features a feed pipe, in which a rotatable feed screw is arranged, and a feed cone, to which the feed screw conveys material, wherein drainage openings are arranged in the feed pipe. Drainage openings are preferably also provided in the feed pipe cone. Especially the combination of a feed screw with a feed pipe cone and a downstream compactor leads to a simple and effective compression of particularly liquid materials. | 02-11-2016 |
