D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters

Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265)
12/2002
12/05/2002	WO2002072951A8 Method for treating pulp with water insoluble chemical additives
12/05/2002	US20020179745 Pulp washing shower
12/05/2002	US20020179263 Covering interior of vessel overcoating screen; supplying cleaning compound
12/05/2002	US20020179262 Aldehyde donors for stabilizing peroxides in papermaking applications
12/05/2002	DE10126347A1 Production of paper/cardboard fibers uses a biological process stage for the wood chips, using a fungus action to give cellulose, which is processed by chemical precipitation reaction and augmented with additives
12/03/2002	US6488809 Resin-treated mercerized fibers and products thereof
11/2002
11/28/2002	WO2002095127A2 Use of lipolytic enzymes for stickies control
11/28/2002	WO2002095124A1 An arrangement for controlling the edge of pulp mass in a web former and a method for controlling the edge of pulp mass
11/28/2002	US20020174964 Particularly pulp or paper which still contains lignin by the addition of N,N-dialkylhydroxylamines, an ester, amide or thio substituted N,N-dialkylhydroxylamine or N,N-dibenzyl-hydroxylamine or salts: synergistic with UV absorbers
11/28/2002	US20020174962 Process for bleaching lignocellulose pulp
11/27/2002	EP1068388B1 Method for inhibiting the deposition of white pitch in paper production
11/27/2002	CN1094896C Method and apapratus for delivering variable flow of hydrogen peroxide
11/26/2002	CA2210247C Modification of xylanase to improve thermophilicity, alkophilicity and thermostability
11/26/2002	CA2186176C Method and apparatus for ozone bleaching of cellulosic pulp at low consistency
11/21/2002	WO2002092809A1 Novel hexenuronidase, gene coding for the same, and use of these
11/21/2002	US20020170468 Dispersant binds hydroxyl groups on cellulose fiber surfaces so as to inhibit bonding between hydroxyl groups of different fibers, thereby reducing inter-fiber hydrogen bonding
11/20/2002	EP1258559A1 Method for brightening mechanical pulps
11/20/2002	EP0651792B1 A novel cellobiose oxidase, an enzymatic agent and a process for treating paper pulp
11/18/2002	CA2385394A1 Pressure vessel for a pulp mill having overflow chute
11/14/2002	WO2002048449A3 Washing machine for cellulose fibers
11/12/2002	CA2090493C Process for hydrolyzing hemicellulose by enzymes produced by trichoderma reesei
11/11/2002	CA2384547A1 Ozone bleaching of low consistency pulp using high partial pressure ozone
11/09/2002	CA2384399A1 Method for brightening mechanical pulps
11/07/2002	WO2002088466A1 Method and device for charging fibres contained in a fibrous suspension with calcium carbonate
11/07/2002	WO2002088461A1 Method for supplying washing liquid to a process for cooking cellulose pulp
11/07/2002	WO2002088460A1 Methods to enhance pulp bleaching and delignification
11/07/2002	WO2002088289A2 Use of metal complex compounds as oxidation catalysts
11/07/2002	WO2002088187A2 Method for the production of woodpulp
11/07/2002	WO2002043838A3 Method for the treatment of waste gas from a cellulose plant
11/07/2002	US20020162638 Producing carbon dioxide; adding pure carbon dioxide to pulp suspension; initiating a chemical precipitation reaction in the pulp suspension by the addition of carbon dioxide
11/07/2002	US20020162243 Method for applying chemical additives to pulp during the pulp processing and products made by said method
11/07/2002	CA2445658A1 Method and device for charging fibres contained in a fibrous suspension with calcium carbonate
11/07/2002	CA2445340A1 Method for the production of woodpulp
11/07/2002	CA2443340A1 Methods to enhance pulp bleaching and delignification
11/06/2002	EP0975582B1 Preparation and use of iminodisuccinic acid salts
11/06/2002	EP0767632B1 Method for delivering a gas-supersaturated fluid to a gas-depleted site and use thereof
11/06/2002	CN1378611A Method for minimising new water use in water circulation system of a treatment plant
11/05/2002	US6475338 Method of minimizing transition metal ions during chemical pulping in a digester by adding chelating agent to the digester
10/2002
10/31/2002	WO2002086230A1 Rapid triglyceride assay for use in pulp pitch control
10/31/2002	WO2002086206A1 Sawdust alkaline pulp having low average degree of polymerization values and method of producing the same
10/31/2002	US20020160186 Meltblown process with mechanical attenuation
10/31/2002	DE10120637A1 Verfahren zum Beladen von Fasern A method for loading fibers
10/31/2002	DE10120636A1 Verfahren und Vorrichtung zur Aufbereitung von insbesondere der Papierherstellung dienendem Stoff Method and apparatus for treatment of particular papermaking fabric dienendem
10/31/2002	DE10120635A1 Verfahren und Vorrichtung zum Beladen von Fasern mit Calciumcarbonat A method and apparatus for loading fibers with calcium carbonate
10/31/2002	DE10120526A1 Verfahren zur Herstellung von Zellstoff A process for the production of pulp
10/30/2002	EP1253238A2 Process for loading fibres
10/30/2002	EP1253237A2 Process and apparatus for the preparation of additives, especially for papermaking
10/30/2002	EP1252502A1 Method and measurement device for measuring suspension
10/29/2002	US6471826 Contacting the fibers with an esterase or lipase; preferably, the fibers are recycled fibers from old corrugated containers, old newsprint, mixed office waste, and the like.
10/29/2002	US6471824 Carboxylated cellulosic fibers
10/29/2002	US6471727 Hemicellulose; dye binding efficiency
10/29/2002	US6470898 Paper stock cleaning apparatus
10/29/2002	EP1226179A4 Treatment of pulp to produce microcrystalline cellulose
10/24/2002	WO2002084024A1 Cross-linked pulp and method of making same
10/24/2002	WO2002084019A1 Method and apparatus for the feeding of fibres
10/24/2002	WO2002083578A2 Process and apparatus for the removal of scale build-up
10/24/2002	US20020155292 Lyocell fiber from sawdust pulp
10/24/2002	CA2444853A1 Process and system for the removal of scale build-up
10/23/2002	EP1251184A1 Reaction method, reaction apparatus and enzyme
10/23/2002	EP1250487A2 Paper making processes using enzyme and polymer combinations
10/23/2002	EP0778909B1 Pulp bleaching
10/22/2002	US6468391 Method of making sanitary paper from chemical pulp using a single component cellulase that does not contain cellulose-building domain
10/22/2002	US6468390 Impregnating fibers with alkali metal hydroxide, withdrawing spent liquid, cooking and reintroducing hemicellulose rich fraction which is precipitated onto fibers to improve yield and beatability of pulp
10/17/2002	US20020148576 Copolymer of methacrylic acid and styrene as an aqueous solution of its alkali metal salt combined with multivalent metal cation useful in causing tacky surfaces or materials to be rendered less tacky (antideposit agent)
10/17/2002	US20020148573 Method for removing wax from a pulp furnish
10/17/2002	US20020148050 Fibers characterized by pebbled surfaces and variable cross sections and diameters produced by centrifugal spinning, melt blowing or spunbonding; low gloss, reduced tendency to fibrillate and enhanced dye receptivity
10/15/2002	CA2296241C Device for the treatment of a fibrous suspension
10/10/2002	US20020144796 Method for bleaching mechanical pulp
10/10/2002	US20020144795 Measuring the rate of regeneration of a lignin redox catalyst in the presence of pulp following its oxidation at a voltammetric electrode
10/10/2002	DE10114341A1 Milling and bleaching natural cellulosic material, giving products used for paper or cardboard manufacture or as a dietary fiber, comprises hydrogen peroxide treatment at high solids level in a hammer or centrifugal mill
10/09/2002	EP1247800A1 Use of iminodisuccinic acid salts in the production of paper
10/09/2002	EP1246965A1 Method for eliminating detrimental substances in a process liquid
10/09/2002	EP0918840B1 Metal ligand containing bleaching compositions
10/08/2002	US6461505 Dewatering device
10/08/2002	US6461477 An effective antideposition agent of a combination of a whey protein and a cationic polymer to protect the surfaces of papermaking machinery - especially when recycled fibers are used
10/08/2002	US6461473 Supply of washing liquid in a fractionating multi-stage washer
10/03/2002	US20020139500 Method for using water insoluble chemical additives with pulp and products made by said method
10/03/2002	US20020139498 Acid hydrolyzing a cellulose source that has never been dried
10/03/2002	US20020139497 Metal extraction prior to chelation in chemical pulp production
10/03/2002	US20020139496 Prehydrolyzing hardwood chips with water, kraft cooking, bleaching and caustic treatment
10/02/2002	EP1245722A2 Preparation of modified fluff pulp, fluff pulp products and use thereof
10/02/2002	EP1244851A1 Method to improve the opacity of mechanical pulp by using aliphatic peroxyacids and use of peroxyacids to improve opacity
10/02/2002	EP1244842A1 Bleaching activator and process for using the activator
10/02/2002	EP1244841A1 Method and system for conveying shredded pulp to an ozone reactor
10/02/2002	EP1244840A1 Bleaching pulp with high-pressure o 2?
10/02/2002	EP1244839A1 Sealing arrangement for a pulp dewatering arrangement
10/01/2002	US6458245 CTMP-process
10/01/2002	US6458242 Ozone bleaching process using oxalic acid addition
10/01/2002	US6458241 For use in a paper-making machine
10/01/2002	CA2202165C A method of determining the organic content in pulp and paper mill effluents
09/2002
09/28/2002	CA2376741A1 Preparation of modified fluff pulp, fluff pulp products and use thereof
09/26/2002	WO2002075046A1 Bleaching of pulp with chlorine dioxide
09/26/2002	WO2002075045A1 Method for the enzymatic control of pitch deposits formed during paper pulp production using an esterase that hydrolyses triglycerides and sterol esters
09/26/2002	WO2002074813A1 Pulp treatment and process
09/26/2002	US20020134519 Method for eliminating detrimental substances in a process liquid
09/26/2002	DE10113998A1 Verfahren zum Beladen von in einer Faserstoffsuspension enthaltenen Fasern mit einem Hilfsstoff A method for loading contained in a fiber pulp suspension with an adjuvant
09/25/2002	EP1243693A2 Process for loading fibers from a fibrous suspension with an additive
09/25/2002	EP1242680A1 System for the oxygen delignification of pulp consisting of lignocellulose-containing material
09/25/2002	EP1242679A1 System and process for the oxygen delignification of pulp consisting of lignocellulose-containing material
09/25/2002	EP1242678A1 Method for bleaching pulp with chlorine dioxide

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