| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 06/19/2008 | US20080142181 High defiberization chip pretreatment apparatus |
| 06/19/2008 | DE102006000514A1 Stofflöser zur Zerkleinerung und Suspendierung von Papierstoff sowie seine Verwendung Pulper for comminuting and suspending paper stock and its use |
| 06/19/2008 | CA2847914A1 Methods of processing biomass comprising electron-beam radiation |
| 06/19/2008 | CA2847243A1 Methods of processing biomass comprising electron-beam radiation |
| 06/19/2008 | CA2823382A1 Methods of processing biomass comprising electron-beam radiation |
| 06/19/2008 | CA2823376A1 Methods of processing biomass comprising electron-beam radiation |
| 06/19/2008 | CA2823244A1 Methods of processing biomass comprising electron-beam radiation |
| 06/19/2008 | CA2823080A1 Methods of processing biomass comprising electron-beam radiation |
| 06/18/2008 | CN101200862A Clean pulping process |
| 06/10/2008 | US7384502 Process for impregnating, refining, and bleaching wood chips having low bleachability to prepare mechanical pulps having high brightness |
| 06/05/2008 | US20080130400 Method, an Apparatus and a Rotor for Homogenizing a Medium |
| 06/04/2008 | CN100392178C Cow dung paper pulp producing process with cow dung as material |
| 06/04/2008 | CN100392177C Process of immersing rolling for pulping and special eqiupment thereof |
| 06/03/2008 | US7381297 Fibrous structure and process for making same |
| 05/29/2008 | US20080122134 Headliners, door panels and interior trim parts that are lofty, acoustical and structural |
| 05/29/2008 | US20080121357 Method And Apparatus For Fiberizing Particularly Paper And/Or Paperboard Based Materials |
| 05/28/2008 | CN100390353C Environment protection pulping and papermaking method |
| 05/27/2008 | US7377993 Methods for reducing fluorescence in pulp and paper |
| 05/20/2008 | CA2256005C Process for deinking papermaking pulp obtained from recycled paper |
| 05/15/2008 | WO2008058003A2 Method and composition for improving fiber quality and process efficiency in mechanical pulping |
| 05/14/2008 | CN101177921A Continuous pulping method for cotton stalk natural color chemomechanical pulp |
| 05/14/2008 | CN101177918A Farm crop straw separating impregnator |
| 05/08/2008 | WO2008053070A2 Method and equipment for evaluation of recycled pulp and pulp |
| 05/08/2008 | US20080105392 Additives of nonionic surfactant, chelating agent, a hydrotrope and optionally a reductive modifier, oxidative modifier and pH controller; decreases freeness and amount of shives, provides energy and chemical savings, and enhances brightness and mechanical strength; discoloration inhibition; papermaking |
| 05/08/2008 | US20080105391 Upstream of preheating section of a mechanical refining system defibrating fiberizing wood chip feed in a low intensity disc refiner until > 30 percent of the fibers are axially separated with < 5 percent fibrillation; > 90% fiber obtained after defibrillated in a high intensity disc; efficiency |
| 05/07/2008 | CN100386038C Dry method paper cigarette filter candle and preparation method thereof |
| 05/06/2008 | US7368037 Refiner steam separation system for reduction of dryer emissions |
| 04/30/2008 | CN101171388A Process for producing mechanical pulp suitable for paper or cardboard making |
| 04/30/2008 | CN101168935A Technique for producing white paper from cotton straw |
| 04/30/2008 | CN101168934A Method for preparing applique paper |
| 04/29/2008 | US7364642 Recycling of latex-containing broke |
| 04/29/2008 | US7364638 pressing out water in a thickening device to form a highly consistent paper fiber stock, then heating the highly consistent paper fiber stock, and dispersing the heated highly consistent paper fiber stock with dispersers |
| 04/24/2008 | WO2007092448B1 Filter compositions using highly refined cellulosic fiber ingredients |
| 04/23/2008 | EP1914344A1 Compressed bale shredder |
| 04/17/2008 | WO2007143182A9 Improved process for manufacturing pulp, paper and paperboard products |
| 04/17/2008 | US20080087390 Multi-step pulp bleaching |
| 04/17/2008 | DE112006001002T5 Verfahren zur Herstellung mechanischen Zellstoffs, der zur Herstellung von Papier oder Pappe geeignet ist A process for producing mechanical pulp suitable for making paper or paperboard |
| 04/16/2008 | EP1567710B1 Apparatus and method for production of pulp |
| 04/16/2008 | CN101161926A Regeneration processing method for waste paper |
| 04/16/2008 | CN101161925A Novel wastepaper deinking method |
| 04/16/2008 | CN100381638C Method of preparing paper product using cotton stalk chemical pulp |
| 04/16/2008 | CN100381636C Bleaching method of cotton stalk chemical pulp |
| 04/15/2008 | US7357888 Method of producing headliners, door panels and interior trim parts |
| 04/10/2008 | US20080083520 low energy pulping of lignocellulosic material, such as wood chips, to produce high quality pulps |
| 04/09/2008 | EP1028809B1 Method and device for treatment of fibrous material |
| 04/09/2008 | CN101160432A Disc housing |
| 04/09/2008 | CN101160431A Method for separating the main components of lignocellulosic materials |
| 04/09/2008 | CN101158137A Method for manufacturing lightweight acoustic insulation shock-proof wood-based panel by employing waste and old fibre |
| 04/09/2008 | CN101158136A Method for manufacturing lightweight acoustic insulation shock-proof wood-based panel by employing waste papers |
| 04/09/2008 | CN101158125A Paper-making grade softwood pulp plate modifying production technique |
| 04/09/2008 | CN101158124A Paper-making grade pulp bleaching plate modifying production technique |
| 04/09/2008 | CN101158123A High-strength bamboo pulp manufacturing technique |
| 04/09/2008 | CN101158122A Bamboo dissolved pulp manufacturing technique |
| 04/09/2008 | CN101158121A Process for manufacturing dissolved pulp by using ethanol, sulfate and acetic acid |
| 04/03/2008 | WO2007140837A3 Method for producing fibrous material |
| 04/03/2008 | US20080078516 Composite panels, pulp, paper; conventional pulping processes, produce a high tensile strength pulp, lighter color than wood pulp, and uses less bleaching chemicals to achieve a desired whiteness; can be combined with wood pulp to produce a variety of products |
| 04/02/2008 | EP1905506A1 Kneader for kneading papermaking materials |
| 04/02/2008 | CN101155957A Method of recycling fibers from sewage sludge and means thereof |
| 04/02/2008 | CN101153470A Kneader |
| 04/02/2008 | CN100377790C Method for controlling flotation groove working |
| 03/29/2008 | CA2602881A1 Kneader |
| 03/27/2008 | WO2007140839A3 Method for producing fibrous material made of wood |
| 03/27/2008 | WO2007140838A3 Lignocellulosic fibrous material made of wood |
| 03/27/2008 | US20080073044 Apparatus for liquid-based fiber separation |
| 03/26/2008 | CN101148837A Paper-making-stage primary color wood pulp plate denaturalization producing technique |
| 03/26/2008 | CN101148836A Paper-making-stage bamboo wood pulp plate denaturalization producing technique |
| 03/26/2008 | CN101148835A Paper-making-stage wood pulp plate denaturalization producing technique |
| 03/26/2008 | CN101148834A Paper-making-stage broad-leaved wood pulp plate denaturalization producing technique |
| 03/26/2008 | CN101148833A Paper-making-stage reclaiming wood pulp plate denaturalization producing technique |
| 03/26/2008 | CN101148832A Paper-making-stage high viscosity wood pulp plate denaturalization producing technique |
| 03/26/2008 | CN101148831A Modified hydrapulper rotor |
| 03/26/2008 | CN101148830A Method for separating straw components by carrying steam explosion-microwave coupling treatment to plant straw |
| 03/26/2008 | CN101148829A Bamboo shoot shell treatment technique for dinnerware and method for producing dinnerware from bamboo shoot shell |
| 03/25/2008 | CA2141794C Methods of biomass pretreatment |
| 03/20/2008 | US20080066877 Feeding wood chips through a compression screw device having a pressure of >5psig of saturated steam, feeding the decompressed material into a fiberizing, low-intensity disc refiner to axially separate >30 % fiber bundles without substantial fibrillation of the fibers; fibrillation, pulping; papermaking |
| 03/19/2008 | CN101144252A Method for producing chemical pulp by steaming mixed vegetation |
| 03/12/2008 | EP1896651A1 Method and apparatus for mechanical defibration of wood |
| 03/12/2008 | EP1266072B1 Raw material for printing paper, method to produce it and printing paper |
| 03/12/2008 | CN101139400A method for separating straw acetylized component and preparing straw cellulose acetate |
| 03/12/2008 | CN101138856A Technique for producing medium density fiberboard by using modified bulrush |
| 03/11/2008 | CA2446895C Method for recovery of compression wood and/or normal wood from oversize chips |
| 03/06/2008 | WO2008003283A3 Device for the production or processing of pulp |
| 03/06/2008 | WO2007143182A3 Improved process for manufacturing pulp, paper and paperboard products |
| 03/06/2008 | US20080053631 uniformly moistening the raw cellulose with water before milling to stabilize the process, and prevent cellulose degrading |
| 03/05/2008 | EP1895047A1 Method and apparatus for pulping unit |
| 03/05/2008 | EP1895046A1 Pulper with screen plate having maximum defibering edges |
| 03/05/2008 | CN101135121A Pulper with screen plate having maximum defibering edges |
| 03/05/2008 | CN101135118A Straw comprehensive utilization method |
| 03/05/2008 | CN101135117A Paper pulp raw material cleaning treating method |
| 02/28/2008 | WO2007092448A3 Filter compositions using highly refined cellulosic fiber ingredients |
| 02/27/2008 | EP1891264A1 Flotation cell |
| 02/27/2008 | CN100371527C Process for making daily used paper by using salix mongolica as raw material |
| 02/21/2008 | US20080044636 Fiberboards, uses and methods of preparation thereof |
| 02/21/2008 | DE102006037697A1 Method for production of ground wood, comprises mechanically separating ground wood fibers individually/in groups from circumference of tree-trunk, and carrying out separating tool in circumferential direction of tree-trunk |
| 02/21/2008 | DE102006020450B4 Verfahren zur Aufbereitung von füllstoffhaltigem Papier, insbesondere von Trockenausschuss Process for the preparation of filler paper, particularly dried Committee |
| 02/20/2008 | EP1889972A1 Core board |
| 02/20/2008 | EP1889971A1 Method for treating a paper fibre mixture |
| 02/20/2008 | EP1034041B1 Refining elements |
| 02/14/2008 | US20080035286 Processes and systems for the pulping of lignocellulosic materials |
| 02/13/2008 | CN201018898Y Multi-roller extractor for sugarcane residue |