| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
|---|
| 03/03/2004 | EP1189836B1 Method for stabilizing hydrogen peroxide |
| 03/03/2004 | CN2605295Y 电磁处理器 Electromagnetic processor |
| 03/02/2004 | US6699358 Forming more high molecular weight silicates that adsorb transition metal impurities |
| 03/02/2004 | US6699357 Fiber material and cooking liquor are introduced at top of digester and pulp is discharged from bottom via line in which pulp is maintained at same pressure level to pressurized wash; increased production in overloaded digesters |
| 03/02/2004 | CA2175666C Implementation of dissolved solids profiling |
| 02/26/2004 | US20040035537 Bringing raw pulp into contact with mixture of peracetic acid and performic acid, treating bleached pulp obtained from first step with solution of sodium hydroxide and hydrogen peroxide |
| 02/25/2004 | EP1390411A1 Pulp treatment and process |
| 02/25/2004 | CN1478133A Black dye mixtures of fibre-reactive azo dyes and use thereof for dyeing fibre material containing hydroxy and/or carbonamide groups |
| 02/25/2004 | CN1139692C Cotton linter tissue products and method for preparing same |
| 02/24/2004 | US6696093 Using a hydantoin compound as stabilizer |
| 02/24/2004 | US6695950 Using selected oxidation conditions to generate aldehyde using a nitroxyl radical mediated oxidation with a limited amount of oxidant |
| 02/19/2004 | US20040033580 Thermopallium culture for fermenting alkaline favorable, heat resistant pullulanase and/or amylase for use in detergent, paper, pulp and textile industry |
| 02/18/2004 | EP1389646A1 Process for making paper |
| 02/18/2004 | EP1070045B1 Methods for the preparation of an n-bis- 2-(1,2-dicarboxy-ethoxy)-ethyl]amine derivative and products of the methods and their uses |
| 02/17/2004 | US6692827 Lyocell fibers having high hemicellulose content |
| 02/17/2004 | US6691358 Oxidized white liquor in an oxygen delignification process |
| 02/12/2004 | WO2004013181A1 Process for producing alkaline treated cellulosic fibers |
| 02/12/2004 | US20040026051 Environmentally-friendly fiberline for producing bleached chemical pulp |
| 02/10/2004 | US6689378 Immobilizing uncomplexed and complexed cyclodextrins to cellulose fibers using a crosslinking means that covalently bonds the cyclodextrin without derivatization; odor absorbents |
| 02/10/2004 | CA2293223C Electrochemical method for determinating lignin content of pulp |
| 02/05/2004 | WO2003085199A3 White pitch deposit treatment |
| 02/05/2004 | US20040020854 Reduces the amount of alkaline solution required by alkaline treatment |
| 02/04/2004 | EP1386036A1 Method and device for charging fibres contained in a fibrous suspension with calcium carbonate |
| 02/04/2004 | CN1137308C Arrangement for adjusting width of fibre web |
| 02/04/2004 | CN1137307C Method for treating process water |
| 02/03/2004 | US6686464 Rheology; solution viscosity; use of mercerized and recovered cellulose pulp in the preparation of cellulose ethers and of cellulose floc having increased bulk density |
| 02/03/2004 | US6686040 Use of thinnings and other low specific gravity wood for lyocell products |
| 02/03/2004 | US6686039 Use of thinnings and other low specific gravity wood for lyocell pulps |
| 02/03/2004 | US6685856 Use of thinnings and other low specific gravity wood for lyocell products method |
| 01/29/2004 | US20040016524 Method of bleaching and providing papermaking fibers with durable curl |
| 01/28/2004 | EP1383857A2 Use of metal complex compounds as oxidation catalysts |
| 01/28/2004 | CN1136357C Treatment of filtrates from peroxide bleaching of pulp |
| 01/27/2004 | US6682923 Non-naturally occurring xylanase activity (xa) protein; bleaching agent comprising as an active ingredient an xa protein in the bleaching process of pulp and in the food and animal feed industry |
| 01/22/2004 | WO2004007834A1 A continuous process for the cooking of cellulose-besed pulp and a pulp digester applicable for the same |
| 01/22/2004 | US20040011485 Process for bio-bleaching of kraft pulp using bacterial consortia |
| 01/20/2004 | US6679972 Easier removal of lignin from fibers |
| 01/15/2004 | US20040010137 Oxidized polymeric carbohydrates and products made thereof |
| 01/14/2004 | EP1379474A2 Process and apparatus for the removal of scale build-up |
| 01/13/2004 | US6677466 Method for stabilizing hydrogen peroxide |
| 01/13/2004 | US6677256 Fibers will release at least some of the activating agent upon stimulus with an activator and the activating agent will cause an increase in the capacity of at least some of the polymer to absorb water |
| 01/08/2004 | WO2004003290A1 Treatment of a mixture containing cellulose with a reducing agent |
| 01/07/2004 | EP1075563B1 Method for removing wax from a pulp furnish |
| 01/07/2004 | CN1133776C Method for catalytic bleaching pulp |
| 01/06/2004 | CA2236415C Paper and paper-like products including water insoluble fibrous carboxyalkyl cellulose |
| 01/02/2004 | EP1375737A1 Process for producing dried singulated cellulose pulp fibers using a jet drier and injected steam and the product resulting therefrom |
| 01/02/2004 | EP1375736A1 A system for producing dried singulated cellulose pulp fibers using a jet drier and injected steam |
| 01/02/2004 | EP1375735A1 Method for brightening pulp with hydrosulfite solution |
| 01/02/2004 | EP1375734A1 Bleached, strong sulfite chemical pulp, a process for the production thereof and products derived therefrom |
| 01/02/2004 | EP1244842B1 A peroxide bleaching solution comprising a bleaching activator and method for using the activator |
| 01/02/2004 | EP0894163B1 Method of preparation of a cellulosic pulp, cellulosic pulp to be used in absorbent products, and such absorbent product |
| 01/01/2004 | US20040000383 Process for facilitating the use of high lignin containing waste paper in the manufacture of paper products |
| 01/01/2004 | US20040000380 Method for brightening pulp with hydrosulfite solution |
| 01/01/2004 | US20040000012 Reduction; adjustment of viscosity, brightness |
| 12/30/2003 | US6668600 Distribution device for a device for dewatering pulp |
| 12/30/2003 | CA2163116C Method of bleaching pulp without using chlorine chemicals |
| 12/30/2003 | CA2159998C Dissolved solids control in pulp production |
| 12/30/2003 | CA2134730C Chlorine-free bleaching with short sequence and filtrate recirculation |
| 12/28/2003 | CA2432459A1 Method for brightening pulp with hydrosulfite solutions |
| 12/25/2003 | US20030236178 Multifunctional polymers, method for the production and use thereof |
| 12/24/2003 | DE10158449C1 Verfahren und Vorrichtung zum Verdichten von ozonhaltigem Gas für eine Ozon-Zellstoffbleiche Method and apparatus for compressing gas containing ozone for an ozone pulp bleaching |
| 12/23/2003 | US6668130 Optical fiber harness |
| 12/23/2003 | US6667424 Absorbent articles with nits and free-flowing particles |
| 12/18/2003 | WO2003104558A1 Chemically cross-linked cellulosic fiber and method of making same |
| 12/18/2003 | US20030230391 Reacting pulp sheet/fluff with glyoxylic acid and/or succinic semicaldehyde |
| 12/17/2003 | EP0836495B1 Delivery of oxygen-supersaturated physiologic solutions |
| 12/17/2003 | CN1462261A Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility |
| 12/16/2003 | CA2117076C A method and device for treating fibre material |
| 12/10/2003 | EP1368537A2 Method for treating pulp with water insoluble chemical additives |
| 12/10/2003 | EP1368285A2 Fiber reinforced cement composite materials using chemically treated fibers with improved dispersibility |
| 12/10/2003 | EP0934402B1 High molecular weight trichoderma cellulase |
| 12/09/2003 | US6660161 Dewatering device |
| 12/09/2003 | US6660128 Oxidase process for pulp |
| 12/09/2003 | CA2121505C Method and apparatus for mixing a first medium to a second medium and a bleaching process applying said method |
| 12/03/2003 | EP0935693B1 Treatment process for cellulosic fibers |
| 12/02/2003 | US6656324 Method for removing wax from a pulp furnish |
| 12/02/2003 | CA2224677C Peroxide bleaching of pulp |
| 11/27/2003 | WO2003097930A1 Process for producing very low cod unbleached pulp |
| 11/27/2003 | WO2003097929A1 Very low cod unbleached pulp |
| 11/27/2003 | US20030220039 Fibrous absorbent material and methods of making the same |
| 11/27/2003 | US20030217823 Method for producing pulp and products from high silica content agricultural waste materials |
| 11/27/2003 | CA2482554A1 Very low cod unbleached pulp |
| 11/26/2003 | EP1068376B1 Compositions for the preparation of lyocell fibers |
| 11/26/2003 | EP0981639B1 Method for producing cellulose derivatives |
| 11/26/2003 | CN1458996A Method for bleaching paper pulp |
| 11/25/2003 | CA2278188C Oxygen delignification process of pulp |
| 11/20/2003 | WO2003095737A1 Method for producing pulp and products from high silica content agricultural waste materials |
| 11/20/2003 | US20030213572 Very low COD unbleached pulp |
| 11/20/2003 | US20030213571 Preparing slurry of cellulosic pulp having a consistency in fibers of from 1-5 weight %, mixing slurry with ozone under high shear conditions, maintaining ozone in contact with fibers to effect bleaching |
| 11/20/2003 | US20030213570 Comprised of an unbleached pulp that is soaked and washed in alkaline water for a sufficient time so that the COD after soaking and washing is less than or equal to 3.0 kg/1000 kg of dry pulp; useful in cementitious products |
| 11/20/2003 | US20030213569 Very low COD unbleached pulp |
| 11/20/2003 | US20030213568 Soaking and washing pulp in alkaline water for a sufficient time so that the COD after soaking and washing is less than or equal to 2.0 kg/1000 kg of dry pulp |
| 11/19/2003 | EP1362935A1 Lyocell fibers, and compositions for making the same |
| 11/19/2003 | EP1362140A1 Device for dewatering and washing of a fibrous suspension |
| 11/19/2003 | EP1196641B1 Preparation of chemical pulp and xylose, utilizing a direct acid hydrolysis on the pulp |
| 11/19/2003 | EP1012392B1 Use of a polyammonium quaternary polymer for controlling anionic trash and pitch deposition and treating coated broke |
| 11/19/2003 | EP0857231B1 Oxygen delignification of lignocellulosic pulp in two steps |
| 11/18/2003 | US6649068 Filtration of pulp mill liquids |
| 11/12/2003 | EP1361310A1 Compositons and methods for inhibiting organic contaminant depositon in pulp and papermaking systems |
| 11/06/2003 | WO2003091495A1 Diffuser washer for cellulose pulp |
| 11/05/2003 | EP1131483B1 Inhibition of pulp and paper yellowing using hydroxylamines and other coadditives |