| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
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| 11/06/2007 | US7291247 Concurrently bleaching, heat treating and convolving cellulosic fiber pulp in bleaching liquor; recovering pulp |
| 11/06/2007 | US7291244 Pulp flaker |
| 11/06/2007 | US7290353 System for making dried singulated crosslinked cellulose pulp fibers |
| 10/31/2007 | EP1848856A1 Fixation of optical brightening agents onto papermaking fiber |
| 10/31/2007 | EP1848855A1 Cross-linking involving a polymeric carbohydrate material |
| 10/31/2007 | EP1848854A1 Method for altering the tack of materials |
| 10/31/2007 | CN200967912Y Plasm feeding box for pulping material compressing and washing facility |
| 10/31/2007 | CN101065535A Method for controlling a bleaching process for waste paper treatment and bleaching device for carrying out said method |
| 10/31/2007 | CN101063275A Process for preparation of rice paper burning-grass pulp |
| 10/31/2007 | CN100346030C Xylanase treatment of chemical pulp |
| 10/30/2007 | US7288167 Mercerized cellulosic fiber sheet crosslinked by a polymeric carboxylic acid, especially a maleic acid polymer, having intrafiber crosslinks without interfiber crosslinks and a Fiber Knot Ratio not greater than 1.2. |
| 10/25/2007 | WO2007090932A3 Method and apparatus for determining the total peroxide content of pulp suspension |
| 10/25/2007 | WO2002072946A3 Method for applying chemical additives to pulp during the pulp processing and products made by said method |
| 10/25/2007 | US20070246177 Activator for Pulp Bleaching |
| 10/25/2007 | US20070246176 Pulp Bleaching Processes |
| 10/24/2007 | EP1611279A4 Method for making chemically cross-linked cellulosic fiber in the sheet form |
| 10/24/2007 | CN200964538Y High compression ratio spiral pulp-squeezing machine |
| 10/24/2007 | CN100344354C Apparatus for mixing |
| 10/24/2007 | CN100344353C Apparatus for mixing |
| 10/23/2007 | US7285184 acidification of cellulose; hemicellulose coatings; high strength, dustless |
| 10/23/2007 | US7285181 Treatment of wood pulp with heat or chemicals for paper |
| 10/18/2007 | WO2007117202A1 A method and a device for feeding pulp from a dewatering unit |
| 10/18/2007 | WO2007115391A1 Modification of xylanases to increase thermophilicity, thermostability and alkalophilicity |
| 10/18/2007 | CA2648182A1 A method and a device for feeding pulp from a dewatering unit |
| 10/17/2007 | EP1718801B1 Method for reducing the extractives content of high-yield pulps and method for producing bleached high-yield pulps |
| 10/17/2007 | EP1404920B1 Cross-linked pulp and method of making same |
| 10/17/2007 | CN101054778A Method for preparing paper pulp by fiber residue generated during microorganism product fermentation |
| 10/17/2007 | CN100343427C Sawdust alkaline pulp having low average degree of polymerization values and method of producing the same |
| 10/16/2007 | US7282115 Method for mitigating the interference caused by high-molecular weight-by-products in pulping processes |
| 10/16/2007 | CA2374665C Chemical composition and method |
| 10/11/2007 | WO2007113381A1 Bleaching process of chemical pulp |
| 10/11/2007 | WO2007113380A1 Bleaching process of chemical pulp |
| 10/11/2007 | CA2647781A1 Bleaching process of chemical pulp |
| 10/11/2007 | CA2647475A1 Bleaching process of chemical pulp |
| 10/10/2007 | CN100342077C Manufacturing method of soluble bamboo pulp |
| 10/04/2007 | WO2005108669A3 Treatment composition for making acquisition fluff pulp in sheet form |
| 10/03/2007 | CN101048545A Method for treating cellulose fibres |
| 10/03/2007 | CN101046072A Pre-treatment process for producing bleached slurry with cotton stalk material |
| 10/03/2007 | CN100340715C New process for producing alkaline hydrogen peroxide mechanical pulp by double scrwe extruding method |
| 09/27/2007 | WO2007108760A1 Final bleaching of cellulose pulp with ozone |
| 09/27/2007 | WO2007107055A1 Degradable sanitary napkin and liner |
| 09/20/2007 | WO2007104128A1 Near-neutral chlorine dioxide bleaching of pulp |
| 09/20/2007 | US20070215526 Screen device |
| 09/19/2007 | EP1834034A1 Method for oxygen delignification of cellulose pulp by mixing of chemicals |
| 09/19/2007 | CN200949178Y Sand separator for paper making |
| 09/19/2007 | CN100338303C Photochemical paper pulp bleaching method and device |
| 09/19/2007 | CN100338094C Pulp treatment method |
| 09/19/2007 | CN100337608C Absorbent articles including fibrous nits and free flowing particles |
| 09/18/2007 | CA2414522C Method for preparing pulp from cornstalk |
| 09/13/2007 | WO2006014563A3 Use of cyclodextrin for reducing yellowing of pulp and paper |
| 09/13/2007 | US20070210015 Dual Zone Wireless Pulp Washer |
| 09/12/2007 | EP1831456A1 A roll press and a roll body for a press roll |
| 09/12/2007 | EP1831455A1 A method for oxygen delignification of cellulose pulp at high pressure in several steps |
| 09/12/2007 | EP1831260A1 Improved biocomposite material |
| 09/12/2007 | CN100336970C Oxidizing enzymes in the manufacture of paper materials |
| 09/11/2007 | US7267744 Pulp treatment and process |
| 09/11/2007 | CA2412757C Methods to control organic contaminants in fibers |
| 09/06/2007 | US20070207692 Cellulose Nonwoven Fabric |
| 09/05/2007 | EP1829845A2 Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility |
| 09/05/2007 | EP1828472A1 Mercerized pulp and webs formed therefrom and process for forming such fibers |
| 09/05/2007 | EP1827645A1 A modified sorptive lignocellulosic fibre material, preparation and use thereof and method for decontamination of fluid and aqueous media |
| 09/05/2007 | CN200943167Y Middle-dense paper pulp tower |
| 09/04/2007 | US7265258 Absorbent articles with nits and free-flowing particles |
| 09/04/2007 | US7264689 Mixing reactant solid calcium oxide or calcium hydroxide into the fiber suspension, transporting suspension into inner chamber of closed reactor, injecting reactant gas, loading fibers, growing calcium carbonate crystals on fiber wall |
| 09/04/2007 | CA2082279C Cellulase preparation comprising an endoglucanase enzyme |
| 08/30/2007 | WO2007073310A9 Washing apparatus for washing cellulose pulp |
| 08/30/2007 | US20070199668 Treatment of cellulose during bleaching with agent capable of reducing carbonyl groups |
| 08/29/2007 | EP1825053A1 Method for treating cellulose fibres |
| 08/29/2007 | CN101024826A Novel mannanases |
| 08/23/2007 | WO2007095575A1 Chemical pulp treatment compositions and methods |
| 08/23/2007 | US20070193707 papermaking; using less optical brightening agents to obtain high whiteness and brightness at less cost |
| 08/23/2007 | CA2637691A1 Chemical pulp treatment compositions and methods |
| 08/22/2007 | EP1664399A4 Superabsorbent cellulosic fiber and method of making same |
| 08/22/2007 | CN2937215Y Double-net filter press pulp washing machine |
| 08/22/2007 | CN2937214Y Floating deink machine |
| 08/22/2007 | CN101023215A Method for removing lignin from water |
| 08/16/2007 | WO2007091942A1 Method for the manufacturing of microfibrillated cellulose |
| 08/16/2007 | WO2007090925A1 Method for recovering hydrolysis products |
| 08/16/2007 | WO2007090461A1 Use of metal complex compounds as oxidation catalysts |
| 08/16/2007 | CA2641691A1 Method and apparatus for determining the total peroxide content of pulp suspension |
| 08/16/2007 | CA2641607A1 Method for the manufacturing of microfibrillated cellulose |
| 08/14/2007 | CA2429022C Method and apparatus for treating pulp with filler |
| 08/14/2007 | CA2241517C Production of sanitary paper |
| 08/08/2007 | EP1816259A1 Use of carbon dioxide for pH control of the wet end section of a paper machine |
| 08/08/2007 | CN101014738A Apparatus and method for washing pulps |
| 08/07/2007 | US7252739 Method for distributing cellulose pulp of low and medium consistency in order to form a uniform pulp web |
| 08/07/2007 | CA2441841C Peroxide bleaching of wood pulp |
| 08/02/2007 | WO2007085579A1 Process for the bleaching of mechanical paper pulp |
| 08/02/2007 | CA2640138A1 Method and arrangement for feeding chemicals into a process stream |
| 08/02/2007 | CA2636355A1 Process for the bleaching of mechanical paper pulp |
| 08/01/2007 | EP1668180B1 Chemical activation and refining of southern pine kraft fibers |
| 08/01/2007 | CN1329584C Method for producing cellulose fiber having improved biostability and production thereof |
| 08/01/2007 | CN1329516C Modification of polysaccharide containing materials |
| 08/01/2007 | CN101008160A Method for producing paper pulp utilizing herbal plant, crop stalk and ore powder |
| 08/01/2007 | CN101007248A Polyether surfactant as deinking agent of waste paper and its preparation method |
| 07/26/2007 | US20070169901 Process for impregnating woodchips |
| 07/25/2007 | EP1811080A1 Process for the bleaching of mechanical paper pulp |
| 07/25/2007 | CN2926293Y Medium-concentrated dewatering apparatus with double net |
| 07/24/2007 | CA2285308C Preparation and use of iminodisuccinic acid salts |
| 07/19/2007 | US20070168075 Method and installation for processing waste paper |