| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 01/13/2010 | EP2142348A1 Method for the production of bleached wood particles and wood materials ranging from light-toned to white |
| 01/13/2010 | EP1395704B1 Printing paper |
| 01/12/2010 | CA2446407C Method and apparatus for recovering fibre and fibre-based solids from a filtrate of the mechanical or chemi-mechanical wood pulp industry, said filtrate containing both solids andlipophilic extractive material |
| 01/06/2010 | EP2140064A1 A method for reducing the energy consumption at the refining of a pulp suspension in a papermaking process and use of sodium bicarbonate in papermaking |
| 12/30/2009 | CN201371494Y Thermofiner refining plate interval mechanical adjusting mechanism |
| 12/30/2009 | CN201371493Y Spiral pipe connection structure of thermofiner |
| 12/30/2009 | CN201371492Y Main shaft mechanical sealing device of thermofiner |
| 12/30/2009 | CN101613967A Efficient defiberizing machine |
| 12/30/2009 | CN100575597C Chemical activation and refining of southern pine kraft fibers |
| 12/30/2009 | CN100575022C Medium density fiber board made from bamboo |
| 12/30/2009 | CN100575021C Medium density fiber board made from bamboo and wood |
| 12/24/2009 | DE102008029043A1 Stoffauflöser Pulper |
| 12/24/2009 | DE102008029038A1 Method for separating plastic particles, particularly foil remainder, from mixture, particularly aqueous mixture, involves applying mixture on filter device with shaft field |
| 12/23/2009 | WO2009153384A1 A pulper treating fiber mass |
| 12/23/2009 | WO2009152882A1 Defibrator |
| 12/23/2009 | CN101608412A Decrystallization method for plant straw by microwave-steam explosion synchronous coupling method |
| 12/23/2009 | CN101608410A Method for manufacturing bamboo pulp |
| 12/23/2009 | CN100572658C Method for controlling gooey with 100% waste newsprint paper deinked pulp esterase |
| 12/17/2009 | WO2009149958A1 Apparatus for impregnating fibrous material with a liquid |
| 12/17/2009 | WO2009149941A1 Skin cleansing cloth and method for the production thereof |
| 12/17/2009 | US20090308549 Device and Method for Defibration of Wood |
| 12/17/2009 | DE102008028350A1 Vorrichtung zum Tränken von Fasermaterial mit einer Flüssigkeit A device for impregnating fibrous material with a liquid |
| 12/09/2009 | EP2129828A1 Injector for flotation cell |
| 12/09/2009 | CN101597575A Composite strain microbial dry powder for bio-pulping and environment-friendly energy-saving type composite strain bio-pulping process |
| 12/09/2009 | CN100567633C Aryl fibre paper with aryl fibre choped stand as raw material and producing method thereof |
| 12/09/2009 | CN100567632C Poplar ASGW pulping process |
| 12/09/2009 | CN100567631C Disc type heat dispersing method and its device for paper-making process and use |
| 12/09/2009 | CN100566960C High-density flame-proof sheet material |
| 12/08/2009 | US7628890 Extraction bedplate with laser or water jet cut apertures |
| 12/02/2009 | EP2126195A1 Method for the production of tissue paper |
| 12/02/2009 | CN101591868A Preparation for carbon fiber paper used for gas diffusion layer of proton exchange membrane fuel cell |
| 12/02/2009 | CN101591866A Clean paper making method by kenaf |
| 12/02/2009 | CN101591864A Environment friendly pulping process |
| 12/02/2009 | CN100563475C Ramie external fiber for tobacco sheet and preparing method thereof |
| 11/26/2009 | WO2009141796A1 Method for recycling composite material |
| 11/26/2009 | US20090288789 Medium consistency refining method of pulp and system |
| 11/25/2009 | EP2123418A1 Method for recycling composite material |
| 11/25/2009 | EP2122053A2 Tracing paper production method |
| 11/25/2009 | EP2122047A1 Pulper for comminuting and suspending papermaking material, and its use |
| 11/25/2009 | CN101586314A Mechanical method for making pulp by extruding sunflower stems |
| 11/24/2009 | US7622018 Modernization of existing pulp towers either to allow the use of higher consistencies in the storage part thereof, or to allow the dilution to a lower consistency; for use in the wood processing industry for bleaching and/or storage of high-consistency pulp; efficiency, upgrading |
| 11/19/2009 | WO2009138469A1 Method and device for size reduction of cellulosic raw material |
| 11/19/2009 | DE102008023434A1 Verfahren und Vorrichtung zur Zerkleinerung zellstoffhaltigen Rohstoffes Method and apparatus for grinding cellulose-containing raw material |
| 11/18/2009 | CN101579877A High component rice hull and poplar tree branch shoot combined high density board production process |
| 11/12/2009 | WO2009136846A1 A refining segment for pulp processing with a deflector arrangement attached at the bars surfaces |
| 11/05/2009 | WO2009134764A2 Paper products and methods and systems for manufacturing such products |
| 11/05/2009 | CA2818661A1 Processing biomass and petroleum containing materials |
| 11/05/2009 | CA2818526A1 Processing biomass and petroleum containing materials |
| 11/05/2009 | CA2723175A1 Paper products and methods and systems for manufacturing such products |
| 11/04/2009 | EP1499446B1 A method and a device for measuring stress forces in refiners |
| 10/28/2009 | EP2111928A1 Device for separating paper and cardboard |
| 10/28/2009 | EP2111927A1 Device for separating paper and cardboard |
| 10/28/2009 | CN101568685A Method for treating ligno-cellulosic materials |
| 10/28/2009 | CN101568684A Pulper for comminuting and suspending papermaking material, and its use |
| 10/28/2009 | CN101565907A Bagasse alkaline pulping method by pre-extracting hemicellulose and product thereof |
| 10/28/2009 | CN101565906A Method for producing bamboo dissolving pulp by pre-extracting hemicellulose and product thereof |
| 10/27/2009 | CA2516846C Fibrous structure and process for making same |
| 10/22/2009 | WO2009108773A3 System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process |
| 10/22/2009 | US20090264036 Nanofiber sheet, process for producing the same, and fiber-reinforced composite material |
| 10/22/2009 | DE102008019197A1 Method for removing contaminants from aqueous fiber suspension, particularly waste paper suspension, involves separating fiber suspension into two streams |
| 10/21/2009 | EP1432517B1 A method and a device for measuring stress forces in refiners |
| 10/15/2009 | US20090255639 Method for making a biodegradable fibrous material composition |
| 10/14/2009 | EP2107935A2 Process and apparatus for waste treatment |
| 10/14/2009 | CN101555668A Paper making method taking canes, leaves and fruit stems of banana tree as raw materials |
| 10/13/2009 | US7601243 Method for conveying, mixing, and leveling dewatered pulp prior to drying |
| 10/08/2009 | US20090250179 Compositions and composites of cellulosic and lignocellulosic materials and resins, and methods of making the same |
| 10/07/2009 | CN101550665A Non-formaldehyde beaver board and preparing method thereof |
| 10/07/2009 | CN101549518A Manufacturing method of medium- and high-density flame-retardant fiber board |
| 10/07/2009 | CN100547155C Positive air admission type flotation deinking tank for lab |
| 10/01/2009 | WO2009119956A1 Herbaceous fiber and manufacturing method thereof and refiner manufacturing therefor |
| 10/01/2009 | WO2009097963A3 Device for treating fibrous material for the manufacture of paper or cardboard |
| 09/30/2009 | EP1415733B1 Used paper diaper processing device |
| 09/24/2009 | WO2009115636A1 A method for pulping waste paper |
| 09/23/2009 | EP2103734A1 Method and system for medium consistency refining of pulp |
| 09/23/2009 | CN101538814A Solid waste paper pulp and manufacturing method thereof |
| 09/23/2009 | CN101538812A Blueprint base paper making technology |
| 09/23/2009 | CN101538810A Wet strength paper treatment technology |
| 09/17/2009 | WO2009111836A1 A method for granulating cellulose fibres |
| 09/17/2009 | US20090229771 Method for Producing Wood Fibre Pellets |
| 09/17/2009 | DE102008013458A1 Method for eliminating extraneous material from aqueous fiber suspension, particularly waste paper suspension, involves accomplishing fractionation of aqueous fiber suspension for forming fine fraction and coarse fraction |
| 09/17/2009 | DE102008013034B3 Verfahren zum Einstellen und/oder Optimieren einer einen Gutstoff von einem Schlechtstoff trennenden Sortieranlage und Sortieranlage A method for adjusting and / or optimizing an accepted stock from a bad one substance separating and sorting sorting |
| 09/16/2009 | CN101532261A Efficient composite enzyme method for separating and purifying cellulose from wood |
| 09/16/2009 | CN101532260A Method for pulping by cooking solid base in plant fiber |
| 09/10/2009 | DE202009008187U1 Flotation Flotation |
| 09/09/2009 | EP2097582A1 A method for manufacturing mechanical pulp |
| 09/09/2009 | EP1423202B1 Refining element |
| 09/09/2009 | CN100536976C Method and device for mixing material flows |
| 09/03/2009 | WO2009108773A2 System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process |
| 09/03/2009 | US20090221812 Method for the manufacture of microfibrillated cellulose |
| 09/03/2009 | US20090218717 Building component of recycled material and method for manufacturing such a building component |
| 09/03/2009 | CA2715592A1 System and method for preextraction of hemicellulose through using a continuous prehydrolysis and steam explosion pretreatment process |
| 09/02/2009 | CN101519671A Technological method for transforming fuel alcohol in stages and cogenerating electricity and paper pulp with pennisetum hydridum |
| 08/27/2009 | WO2009105236A1 Ionic liquid systems for the processing of biomass, their components and/or derivatives, and mixtures thereof |
| 08/27/2009 | CA2652504A1 Method and apparatus for separating fibers from a gas in a centrifuge |
| 08/26/2009 | CN201296876Y Wooden plug helical feeding apparatus |
| 08/26/2009 | CN101517159A Wood fiber separation device and method thereof |
| 08/25/2009 | CA2440786C Grinding segment and grinder stone |
| 08/25/2009 | CA2440478C Grinding element and grinder stone |
| 08/20/2009 | DE102008009415A1 Fiber e.g. aqueous suspended paper fiber, changing method, involves processing predominant part of paper or cellulose fibers between milling bars through pressure impulses, and moving milling tools relative to each other |
| 08/19/2009 | CN100529251C Method for producing paper pulp utilizing herbal plant, crop stalk and ore powder |