| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 01/20/2005 | WO2005005716A1 Method and arrangement for treating pulp |
| 01/20/2005 | US20050011622 Papermaking pulp; using compression screw device in saturated steam |
| 01/20/2005 | CA2531642A1 Method and arrangement for treating pulp |
| 01/19/2005 | EP1497494A1 Arrangement for treating pulpstone surface |
| 01/19/2005 | CN1568387A Method of separating colouring agents, particularly printing ink, from recycled fibre material |
| 01/19/2005 | CN1568229A Extraction bedplate with laser or water jet cut apertures |
| 01/13/2005 | US20050009166 Cellulase variants |
| 01/13/2005 | DE10337821B3 Process to remove non-cellular matter from cellular paper pulp cellulose and foreign matter are dispersed and fractionated |
| 01/13/2005 | CA2534115A1 Method for producing a fibrous material |
| 01/12/2005 | EP1496154A1 Process for determining the loss of solid material or fibres during washing or flottation of a fibrous suspension |
| 01/12/2005 | CN2670415Y Drum pulper |
| 01/12/2005 | CN1563569A Method for making paper by using branches of mulberry as raw material |
| 01/12/2005 | CN1563563A Totally enclosed type method for pulping procedure in papermaking with zero discharged blac liquor |
| 01/12/2005 | CN1563561A Separated paper making method for composite materials of paper and plastic |
| 01/11/2005 | CA2095302C Method and apparatus for separating paper fiber and plastics from mixed waste materials and products obtained thereby |
| 01/06/2005 | WO2004063462A3 Various banding apparatus and methods for using such |
| 01/06/2005 | US20050000666 Controlled pH and temperature; heating; papermaking ; high strength |
| 01/05/2005 | EP1492926A1 Improved molded fiber manufacturing |
| 01/05/2005 | EP0877646B1 Process for producing workpieces and molded pieces out of cellulose and/or cellulose-containing fiber material |
| 01/05/2005 | DE10327701A1 Verfahren und Vorrichtung zur Flotation von Störstoffen aus einer wässrigen Faserstoffsuspension Method and apparatus for flotation of impurities from an aqueous fiber suspension |
| 01/05/2005 | CN2668676Y Ink-jetting can |
| 01/05/2005 | CN1182771C Holder for displaying floral bouquet |
| 01/04/2005 | US6837971 Device and method of using explosive forces in a contained liquid environment |
| 01/04/2005 | CA2382180C High temperature peroxide bleaching of mechanical pulps |
| 01/04/2005 | CA2325432C Method and device for the flotation of pollutants from an aqueous fibrous material suspension |
| 12/29/2004 | EP1490547A1 Method for defibring recycled fibre material in a drum pulper, and a drum pulper |
| 12/29/2004 | EP1490546A1 Sluice feeder |
| 12/29/2004 | CN2666978Y Homodromy double-screw paper pulp mill |
| 12/28/2004 | US6834764 Roller screen and method for sorting materials by size |
| 12/23/2004 | US20040256295 Method and device for the flotation of contaminants from an aqueous fibrous suspension |
| 12/23/2004 | US20040256071 Method and apparatus for producing fibre pulp and fuel out of municipal waste |
| 12/23/2004 | US20040256065 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 12/22/2004 | EP1489227A1 Process and apparatus for removing contaminants by flotation from an aqueous fibrous suspension |
| 12/22/2004 | EP1488037A1 Method for adjusting the fibrous properties of pulp |
| 12/22/2004 | CN1556263A Method of producing fiber from corn straw |
| 12/18/2004 | WO2005001195A1 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 12/18/2004 | CA2485520A1 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 12/16/2004 | US20040250897 Grinding element and grinder stone |
| 12/14/2004 | US6830656 Metal or refractory fibers in nylon binder; foaming, screening, defoaming and melting |
| 12/09/2004 | WO2004106632A1 Refiner steam separation system for reduction of dryer emissions |
| 12/09/2004 | CA2526119A1 Refiner steam separation system for reduction of dryer emissions |
| 12/08/2004 | CN1178753C Apparatus for cleaning suspension, preferably fibre mass suspension |
| 12/02/2004 | US20040238134 Microwave pre-treatment of logs for use in making paper and other wood products |
| 12/02/2004 | CA2524301A1 Refining element |
| 12/01/2004 | CN2659931Y 鼓式碎浆机 Drum pulper |
| 12/01/2004 | CN1550267A Raw material separating and treating method |
| 11/25/2004 | WO2004101889A2 Use of hemicellulase composition in mechanical pulp production |
| 11/25/2004 | US20040232053 Process for de-inking paper pulp and flotation cell used for this process |
| 11/25/2004 | US20040231811 Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) |
| 11/24/2004 | EP1479442A2 Rotary drum mill and relevant inner lining |
| 11/24/2004 | CN1177101C Chemical treatment and hot pulping process of wood pulp and dreg pulp with mechanical mill and stone mill |
| 11/23/2004 | US6822183 Method of selecting wood for chemical pulping |
| 11/23/2004 | US6821392 Headbox sealing device |
| 11/18/2004 | US20040226677 Process and a fluffer device for treatment of a fiber stock suspension |
| 11/18/2004 | US20040226671 production of texturized microcrystalline cellulose from raw pulp material by hydrolyzing cellulosic material with mineral acid, defibrillation of intermediate; can be used for surface treatment of paper or paper board or as starting material for production of paper or paperboard |
| 11/17/2004 | EP1477607A1 Process for de-inking paper pulp and flotation cell used for this process |
| 11/17/2004 | CN1546785A Crusher for fodder |
| 11/17/2004 | CN1176268C Thermal jetting and bursting pulping process |
| 11/16/2004 | US6818099 Raw material for printing paper, method to produce it and printing paper |
| 11/11/2004 | US20040222161 Process and device for aerating suspensions |
| 11/09/2004 | US6815553 Birch bark processing and the isolation of natural products from birch bark |
| 11/09/2004 | US6814240 Installation for cleaning wood-containing material |
| 11/04/2004 | WO2004093926A1 Material having deodorizing function and method for production thereof |
| 11/04/2004 | US20040216854 Arundo donax composite panel |
| 11/03/2004 | CN2652978Y Explosive mouth of explosive device for explosive pulping |
| 11/03/2004 | CN1173826C Fiberboard and manufacturing method thereof |
| 10/28/2004 | US20040214702 Process for the conversion of cellulose acetate waste fibers into a suitable form for paper production and the resultant paper products |
| 10/28/2004 | US20040211532 dehydration of waste paper slurries containing ink and water; waste recycling; fuels for fuel cells |
| 10/28/2004 | DE10248259B4 Vorrichtung zum Zerkleinern von Material, und Rotor für eine solche Vorrichtung An apparatus for comminuting material, and rotor of such a device |
| 10/27/2004 | CN1541291A Method for preparing homogenous cellulosic product from cellulosic waste materials |
| 10/26/2004 | US6807960 Tool for dressing pulpstones |
| 10/21/2004 | US20040209753 Used paper diaper processing method and used paper diaper processing device |
| 10/20/2004 | EP1181227A4 Paper sorting system |
| 10/14/2004 | US20040200778 Quality analysis by measuring liquid level and the foam level in the chambers; deinking operation |
| 10/14/2004 | US20040200586 Four stage alkaline peroxide mechanical pulping |
| 10/14/2004 | DE202004010166U1 Refining machine, to break cellulose suspensions down into fibers, has a swing platform over the vessel to carry the propeller drive opened on swing supports against closing spring forces |
| 10/13/2004 | CN1535762A Method for controlling flotation groove working |
| 10/13/2004 | CN1170978C Method for production of mechanical pulp |
| 10/07/2004 | US20040195410 Waste pulping system |
| 10/07/2004 | US20040194646 Screw press |
| 10/07/2004 | DE202004005031U1 Sieve assembly for repulping paper fiber suspensions, especially from waste paper with impurities for recycling, has bars with a plasma-supported surface treatment to deposit foreign ions and a hard coating |
| 09/30/2004 | WO2004083519A1 Manufacturing process of a paper substrate intended to be vulcanised or parchmentised |
| 09/30/2004 | US20040188480 Method of separating colouring agents, particularly printing ink, from recycled fibre material |
| 09/30/2004 | US20040188329 De-inking screen |
| 09/29/2004 | EP1299459B1 Method and device for the production of cellulose particles |
| 09/28/2004 | US6797113 Low specific gravity wood from thinning operations, for example, will produce a lower brownstock viscosity for a given kappa number target. a differential of 200-cp falling ball pulp viscosity has been detected from kraft cooks of low |
| 09/23/2004 | DE202004010009U1 Sekundärstofflöser für die Papierstoffaufbereitung Secondary pulper for paper stock preparation |
| 09/22/2004 | EP1458499A1 Screen |
| 09/22/2004 | CN1167541C Production of xylon grey cellulose powder |
| 09/22/2004 | CN1167511C Method and device for processing pulp |
| 09/21/2004 | US6793165 Efficiently removal of steam from particles |
| 09/15/2004 | EP1457597A2 Method for regulating the operation of a flotation cell |
| 09/10/2004 | WO2004076745A1 Fibrous structure and process for making same |
| 09/10/2004 | WO2004076741A2 Fibrous structure and process for making same |
| 09/10/2004 | CA2756555A1 Fibrous structure and process for making same |
| 09/08/2004 | EP1454008A1 Method of separating colouring agents, particularly printing ink,from recycled fibre material |
| 09/01/2004 | EP1452638A1 Method and device for aerating suspensions |
| 09/01/2004 | EP1450994A1 Processing of ligno-cellulose materials |
| 09/01/2004 | EP1450958A1 Extraction bedplate with laser or water jet cut apertures |
| 09/01/2004 | CN2637535Y Full enclosed floatation deink machine |