| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
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| 09/08/2005 | US20050194482 Grooved pyramid disperger plate |
| 09/08/2005 | US20050194111 Methods to enhance pulp bleaching and delignification |
| 09/07/2005 | CN1218088C Method for reducing contamination from cellulosic suspensions |
| 09/07/2005 | CN1218087C Methods for control of organic contaminants in fiber suspensions |
| 09/03/2005 | CA2497812A1 Device for shear-thinning of solids containing material |
| 09/01/2005 | WO2005080678A1 Modifying cellulose fibres by using amphoteric cellulose derivative |
| 09/01/2005 | WO2005080673A2 A process for the treatment of fibre material and new composition |
| 09/01/2005 | WO2005080672A2 Method for reducing the extractives content of high-yield pulps and method for producing bleached high-yield pulps |
| 09/01/2005 | WO2005080671A1 Sodium sulfate treated pulp |
| 09/01/2005 | US20050191400 Enhanced fiber additive; and use |
| 08/31/2005 | EP1568819A1 Method for improving the discoloration resistance of pulp and pulp improved in discoloration resistance |
| 08/30/2005 | US6936136 improved reactivity toward papermaking additives; polymeric anionic reactive and aldehyde functional compounds; water insolubility |
| 08/25/2005 | US20050183836 Enhanced fiber additive; and use |
| 08/24/2005 | EP1566480A1 Process for producing kraft pulp |
| 08/24/2005 | CN2719896Y Drum vacuum pulp washing engine plane valve sealing device |
| 08/24/2005 | CN1657697A Deink machine |
| 08/24/2005 | CN1657695A Production method of stencil tissue paper |
| 08/23/2005 | CA2267530C Readily defibered pulp products and method of their manufacture |
| 08/23/2005 | CA2193204C Delignification of chemical pulp with peroxide in the presence of a transition metal |
| 08/18/2005 | US20050178518 can be formed into absorbent articles for absorbing fluids such as aqueous fluids like urine or blood; diapers, incontinent devices and feminine hygiene products; sheet comprising: cellulose fibers; water; and sodium sulfate |
| 08/17/2005 | CN2718030Y Pulp discharging device for high-thickness bleaching tower |
| 08/11/2005 | US20050173088 White pitch deposit treatment |
| 08/11/2005 | US20050173083 Addition of tetrakis(hydroxyalkyl) phosphonium salt to wet pulp; improving opacity; biocide and fire retardancy action |
| 08/11/2005 | US20050173082 Bleaching of medium consistency pulp with ozone without high shear mixing |
| 08/10/2005 | EP1561858A1 Disperger with plate having grooved pyramid teeth |
| 08/10/2005 | CN1651647A Method for making artificial fiber pulp by whole hemp stalk |
| 08/10/2005 | CN1651646A Disperger with plate having grooved pyramid teeth |
| 08/06/2005 | CA2496289A1 Optical brightener for aqueous high yield pulp and process for making brightened paper |
| 08/05/2005 | CA2494398A1 Grooved pyramid disperger plate |
| 08/04/2005 | US20050170485 Culture having phenol oxidase-like activity |
| 08/03/2005 | EP1558541A1 Cementitious material reinforced with chemically treated cellulose fiber |
| 08/03/2005 | CN1648335A Method for treating and reusing pulp bleaching waste water in size washing |
| 08/03/2005 | CN1648333A Circulation pulping device for no-boiling biochemical solvent continuous dipping catalyst cracking |
| 08/03/2005 | CN1648331A New process for lipase waste paper deinking |
| 08/03/2005 | CN1213200C Lumen loading of mineral filler into cellulose fibers for papermaking |
| 08/03/2005 | CN1213197C Process for oxygen pulping of lignocellulosic material and recovery of pulping chemicals |
| 08/02/2005 | US6923887 Method for hydrogen peroxide bleaching of pulp using an organic solvent in the bleaching medium |
| 08/02/2005 | CA2220769C Process for treating paper pulp |
| 07/28/2005 | WO2005068710A1 Hydrophilic fibers containing substantive polysiloxanes and tissue products made therefrom |
| 07/28/2005 | WO2005068074A2 Use of metal complex compounds comprising pyridine pryimidine or s-triazne derived ligands as catalysts for oxidations with organic peroxy acids and/or precursors of organic peroxy acid and h2o2 |
| 07/28/2005 | WO2005067841A1 Highly wettable - highly flexible fluff fibers and disposable absorbent products made of those |
| 07/28/2005 | US20050161177 Method for the modification of cellulose fibres |
| 07/28/2005 | CA2547516A1 Hydrophilic fibers containing substantive polysiloxanes and tissue products made therefrom |
| 07/27/2005 | EP1313830B1 Use of percarbamic acid and diacyl percarbamates and precursors therefor |
| 07/27/2005 | EP1274753B1 Multifunctional polymers, method for the production and use thereof |
| 07/27/2005 | EP1078033B1 Metal ligand containing bleaching compositions |
| 07/27/2005 | CN1646768A White pitch deposit treatment |
| 07/27/2005 | CN1646672A Use of metal complex compounds as oxidation catalysts |
| 07/26/2005 | US6921746 Multifunctional polymers, method for the production and use thereof |
| 07/26/2005 | CA2256579C Process for the bleaching of chemical pulp |
| 07/21/2005 | US20050155729 Method for ozone treatment of used paper |
| 07/20/2005 | CN2711216Y Speed reduction unit for paper-making machine |
| 07/20/2005 | CN1643209A Process for bleaching lignocellulose-containing non-wood pulp |
| 07/20/2005 | CN1642409A Compositions and composites of cellulosic and lignocellulosic materials and resins, and methods of making the same |
| 07/19/2005 | US6919447 Hypochlorite free method for preparation of stable carboxylated carbohydrate products |
| 07/19/2005 | US6918992 Comprises bentonite and synthetic silicate compound; for diapers, incontinent pads, sanitary napkins and wiper cloths |
| 07/14/2005 | WO2005064077A1 Closed cycle zero discharge bio-oxidizing pulping process |
| 07/14/2005 | WO2005064076A1 Closed cycle zero discharge oxidizing pulping process |
| 07/14/2005 | US20050150822 Device for shear-thinning of solids containing material |
| 07/14/2005 | US20050150619 Xylanase treatment of chemical pulp |
| 07/13/2005 | EP1552055A1 Method of dewatering pulp |
| 07/13/2005 | EP1552053A1 A continuous process for the cooking of cellulose-besed pulp and a pulp digester applicable for the same |
| 07/13/2005 | CN2709490Y Pulp photocatalysis bleaching reactor |
| 07/13/2005 | CN1639417A Xylanase treatment of chemical pulp |
| 07/13/2005 | CN1639416A Use of lipolytic enzymes for stickies control |
| 07/07/2005 | WO2005061790A1 Process for producing a fibrous product |
| 07/07/2005 | WO2005061782A1 Method for reducing brightness reversion of mechanical pulps and high-yield chemical pulps |
| 07/07/2005 | WO2005061568A1 Process for producing a fibre composition |
| 07/07/2005 | WO2005060332A2 Method of producing fibre products |
| 07/07/2005 | US20050145351 Hydrolyzing with active oxygen in an acidic environment in a one step process; product has a greater brightness |
| 07/07/2005 | US20050145350 Individualized intrafiber crosslinked cellulosic fibers with improved brightness and color |
| 07/07/2005 | US20050145348 Method of providing paper-making fibers with durable curl and absorbent products incorporating same |
| 07/07/2005 | DE10357437A1 Verfahren zum Beladen einer Faserstoffsuspension und Anordnung zur Durchführung des Verfahrens A method for loading a fiber suspension and arrangement for performing the method |
| 07/07/2005 | DE10303646B4 Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension A method for removing anionic trash from an aqueous paper fiber suspension |
| 07/07/2005 | CA2549650A1 Method for reducing brightness reversion of mechanical pulps and high-yield chemical pulps |
| 07/07/2005 | CA2549519A1 A process for producing a fibre material having properties which are foreign to the native fibre |
| 07/07/2005 | CA2549513A1 Process for producing a fibre composition |
| 07/07/2005 | CA2549471A1 A process for producing a fibre material comprising a signalling agent |
| 07/06/2005 | CN1209524C Method of draining water from low-consistency water-fibre suspensions |
| 07/05/2005 | CA2312954C Polymeric polycarboxylic acid crosslinked cellulosic fibers |
| 06/30/2005 | WO2005059241A1 Method for the acidification of pulp prior to ozone bleaching |
| 06/30/2005 | WO2005058972A1 Process for the oxidation of hydroxy compounds by means of nitroxy compounds |
| 06/30/2005 | US20050143275 Endoglucanase nce5 and cellulase preparations containing the same |
| 06/29/2005 | EP1546450A1 Method of deresinating pulp using alkyl alcohol alkoxylate surfactants |
| 06/29/2005 | CN1632219A Black liquor combination extraction process in wheat straw pulping |
| 06/28/2005 | US6910285 Process to produce dried singulated cellulose pulp fibers |
| 06/28/2005 | CA2231314C Process for thickening a fibrous pulp suspension |
| 06/23/2005 | WO2005056919A1 A method and system for controlling the addition of oxygen gas and alkali during oxygen gas delignification |
| 06/23/2005 | WO2005056918A1 Method for charging a fibre suspension and arrangement for carrying out said method |
| 06/23/2005 | WO2005042838B1 Bleached and unbleached fibrous paper pulps and a method for producing the same |
| 06/23/2005 | US20050137547 Highly wettable - highly flexible fluff fibers and disposable absorbent products made of those |
| 06/23/2005 | US20050133173 Process for bleaching Kraft pulp |
| 06/22/2005 | EP1543192A1 Process and arrangement for replacing intra-fiber liquid in fibers with a replacement liquid |
| 06/22/2005 | CN1630756A Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof |
| 06/17/2005 | CA2490390A1 Improved process for bleaching kraft pulp |
| 06/16/2005 | US20050126725 Device for distributing cellulose pulp of low and medium consistency in order to form a uniform pulp web |
| 06/15/2005 | EP1541753A1 Refiner bleaching with magnesium oxide and hydrogen peroxide |
| 06/15/2005 | EP1541590A1 Process for the oxidation of hydroxy compounds by means of nitroxy compounds |
| 06/15/2005 | CN1627984A 混合装置 Mixing device |
| 06/14/2005 | CA2278399C Bleaching process |