| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
|---|
| 02/20/2003 | US20030035950 Superabsorbent cellulosic fiber |
| 02/20/2003 | US20030034137 Swellable cellulose fibers |
| 02/20/2003 | US20030034136 Swellable cellulose fibers |
| 02/20/2003 | CA2759765A1 Control of development of biofilms in industrial process water |
| 02/18/2003 | US6521134 System and method for altering the tack of materials using an electrohydraulic discharge |
| 02/18/2003 | US6521094 Device for the treatment of a fibrous suspension |
| 02/13/2003 | US20030032702 Shearing fiber to expose interior fiber to form texturized cellulosic or lignocellulosic fiber, and combining with a thermoplastic resin; waste recycling |
| 02/13/2003 | US20030030005 Method and measurement device for measuring suspension |
| 02/13/2003 | US20030029589 Total chlorine free bleaching of Arundo donax pulp |
| 02/13/2003 | US20030029588 Process for the selective modification of carbohydrates by peroxidase catalyzed oxidation |
| 02/13/2003 | US20030029586 Enhanced bonding, strength, softness |
| 02/13/2003 | US20030029585 Tensile strength |
| 02/12/2003 | CN1396335A Dual-screen pulp washing machine |
| 02/06/2003 | WO2003010384A1 Bulky pulp, method for production thereof and converted paper or multi-ply paper using the bulky pulp |
| 02/06/2003 | US20030025252 Process for making lyocell fiber from sawdust pulp |
| 02/06/2003 | US20030025251 Pumping raw materials in digester; alkalinity solutions |
| 02/06/2003 | US20030024664 Peroxide compound, sodium hydroxide and magnesium hydroxide, and optionally an oxygen-containing material in the absence of magnesium sulfate. |
| 02/06/2003 | US20030024663 Sulfated and crosslinked cellulosic fiber having a liquid absorption capacity of at least about 4 g/g. |
| 02/06/2003 | US20030024662 Cationic cellulosic fibre containing 1-30 cationic groups and 0.1-20 aldehyde groups per 100 anhydroglucose units; aldehyde groups may be reacted with with a nitrogen containing reagent such as betaine hydrazide hydrochloride. |
| 02/06/2003 | US20030024661 Preparation of modified fluff pulp, fluff pulp products and use thereof |
| 02/05/2003 | EP1280859A1 Method and composition for dispersing hydrophobic particles in aqueous suspensions |
| 02/05/2003 | CN1395639A Bleaching pulp |
| 02/05/2003 | CN1395004A Vertical double-screen pulp-washing machine |
| 02/05/2003 | CN1100916C Decolouring method for plant fibre slurry liquid |
| 02/04/2003 | US6514613 Molded bodies made from compositions having low degree of polymerization values |
| 02/04/2003 | US6514381 Method and apparatus for continuous mechanical thickening of slurry |
| 02/04/2003 | US6514380 Cooking cellulose fiber materials such as wood chips in digesters, then washing, delignifying and screening for coarseness; papermaking apparatus |
| 01/30/2003 | WO2003008703A1 Four stage alkaline peroxide mechanical pulping |
| 01/30/2003 | US20030019596 Catalytic bleaching kraft pulp in an alkaline peroxide by treating the pulp with hydrogen peroxide, sodium hydroxide, a zeolite; improve brightness and delignification |
| 01/30/2003 | US20030019595 Method of draining water from low-consistency water-fiber suspensions |
| 01/29/2003 | EP1278911A1 Dewatering device |
| 01/29/2003 | EP1278910A1 Method and apparatus for regulating a peroxide bleaching process |
| 01/29/2003 | EP1278909A1 A method for controlling the delignification and bleaching of a pulp suspension |
| 01/29/2003 | CN1394249A Method for determining characteristic value for binding force potential of suspended paper fibers and use of this method |
| 01/29/2003 | CN1100177C High-temp ClO2 bleaching method of sulfated wood pulp |
| 01/29/2003 | CN1100176C Fully chlorine-free bleaching method for broad-leaved wood sulphate pulp |
| 01/28/2003 | US6512110 Process for the production of xylose from a paper-grade hardwood pulp |
| 01/28/2003 | US6511930 Lyocell fibers having variability and process for making |
| 01/28/2003 | US6511578 Bleaching and delignifying cellulosic pulp using caroate/caro's acid solution |
| 01/28/2003 | CA2264423C Method for treatment of pulp |
| 01/28/2003 | CA2225023C Method and apparatus for treating pulp in an indirect heat exchanger in connection with bleaching |
| 01/28/2003 | CA2155524C Process for crosslinking of cellulosic fibers |
| 01/23/2003 | WO2003006740A1 Method of loading a fiber suspension with calcium carbonate |
| 01/23/2003 | WO2003006739A1 Cationic cellulosic fibres |
| 01/23/2003 | WO2002070816A3 Electrical field apparatus and methods for fluid for decontamination and other purposes |
| 01/22/2003 | EP1276928A2 Cellulose fiber having improved biostability |
| 01/22/2003 | CN1099500C Method for producing chlorine-free bleached pulp, paper and paper board by using hemp stem |
| 01/21/2003 | CA2132202C Method for treating pulp |
| 01/15/2003 | EP1274753A1 Multifunctional polymers, method for the production and use thereof |
| 01/14/2003 | US6506435 Refining by soaking in sodium hydroxide |
| 01/14/2003 | US6506282 Steam explosion treatment with addition of chemicals |
| 01/09/2003 | WO2002083578A3 Process and apparatus for the removal of scale build-up |
| 01/09/2003 | US20030006017 Ozone bleaching of low consistency pulp |
| 01/09/2003 | US20030006016 Refining wood raw material, and screening in a plurality of stages into regect and accept portions to form a ready made stock having a freeness value of 30-70 ml at a consistency of >/= 10% |
| 01/08/2003 | EP1272706A1 A process for bleaching a lignocellulosic pulp |
| 01/08/2003 | EP1047729B1 Composition for bleaching mechanical pulp |
| 01/08/2003 | EP0961851B1 Process for producing fibrous materials with improved properties |
| 01/08/2003 | CN1389624A Paper pulp bleaching electrolysis process |
| 01/07/2003 | US6503369 Process for producing cellulose and fertilizer by-product |
| 01/07/2003 | US6502434 Effluent shower for pulp washer |
| 01/03/2003 | WO2003000984A1 Method of adjusting pulp washing process and determining efficiency |
| 01/03/2003 | WO2003000983A1 Total chlorine free bleaching of arundo donax pulp |
| 01/03/2003 | WO2003000982A1 Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) |
| 01/03/2003 | WO2002046522A3 Bleaching process |
| 01/03/2003 | WO2001034902A3 Process and composition for preparing a lignocellulose-based product, and the product obtained by the process |
| 01/03/2003 | CA2451155A1 Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) |
| 01/03/2003 | CA2450884A1 Method of adjusting pulp washing process and determining efficiency |
| 01/02/2003 | US20030000670 Method for determining a characteristic value for the binding force potential of suspended paper fibers and use of this method |
| 01/02/2003 | EP1270805A2 Reduction of organically bound chlorine formed in chlorine dioxide bleaching |
| 01/02/2003 | EP1268932A2 Pitch and stickies control in pulp and papermaking processes |
| 01/02/2003 | EP1268929A1 Fluff pulp for absorption products |
| 01/02/2003 | EP1268927A1 A process for production of paper materials with improved wet strength |
| 01/02/2003 | EP1268924A1 Method for avoiding mechanical damage of pulp |
| 01/02/2003 | EP1268923A1 Process for reducing sticky contaminants in stock systems containing waste paper and in coated broke |
| 12/31/2002 | US6500303 Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives |
| 12/26/2002 | US20020195213 Process for producing xylooligosaccharide from lignocellulose pulp |
| 12/25/2002 | CN1386927A Technological system for producing environment protection type paper pulp |
| 12/19/2002 | WO2002101139A1 Cellulose fibers comprising radiation activatable resins |
| 12/19/2002 | US20020189021 Refining a wood chips with a bleaching liquor of hydrogen peroxidem, magnesium hydroxide and sodium carbonate, holding at 85-160 degrees c for 2-180 minutes to improve brightness |
| 12/18/2002 | EP1266994A1 High temperature peroxide bleaching of mechanical pulps |
| 12/18/2002 | EP1266080A1 Method of draining water from low-consistency water-fibre suspensions |
| 12/18/2002 | EP1266078A1 Raw material for printing paper, method to produce it and printing paper |
| 12/18/2002 | EP1266075A1 Bleaching pulp |
| 12/18/2002 | EP1266074A1 Method for bleaching mechanical and chemithermomechanical pulp |
| 12/18/2002 | EP1266073A1 Method for determining a characteristic value for the binding force potential of suspended paper fibers and use of this method |
| 12/12/2002 | WO2002099187A1 Reduction of organically bound chlorine formed in chlorine dioxide bleaching |
| 12/12/2002 | WO2002099186A1 Reduction of organically bound chlorine formed in chlorine dioxide bleaching |
| 12/12/2002 | WO2002099185A1 Chemical pretreatment step in pulp washing |
| 12/12/2002 | WO2002099023A2 Enzymatic systems for generating active oxygen species for reacting with other precursors to obtain oxidation and/or bleaching |
| 12/12/2002 | US20020185176 Pressure vessel for a pulp mill having overflow chute |
| 12/12/2002 | DE10126988A1 Systems for oxidation or bleaching, especially of pulp, comprise a component enzymatically generating peroxide, superoxide or other reactive oxygen species, and a precursor formed enzymatically, or is oxidizably reactive |
| 12/12/2002 | CA2488599A1 Enzymatic systems for generating active oxygen species for reacting with other precursors to obtain oxidation and/or bleaching |
| 12/11/2002 | EP1264930A1 Cellulose fibers comprising radiation activatable resins |
| 12/11/2002 | EP1264846A1 Method for preparation of stabilized carboxylated cellulose |
| 12/11/2002 | EP1264845A2 Hypochlorite free method for preparation of stable carboxylated carbohydrate products |
| 12/11/2002 | EP1264041A1 Process for producing cellulose pulp and fertiliser containing potassium |
| 12/11/2002 | CN1384889A Reaction method, reaction apparatus and enzyme |
| 12/10/2002 | US6491788 Process for making lyocell fibers from alkaline pulp having low average degree of polymerization values |
| 12/10/2002 | US6491787 Method for heating pulps |
| 12/06/2002 | CA2383803A1 Method for preparation of stabilized carboxylated cellulose |