| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
|---|
| 04/06/2011 | CN102002877A Paper pulp concentrating machine |
| 04/06/2011 | CN102002876A Chlorine-free and sulfur-free clean pulping method adopting grass raw materials |
| 04/06/2011 | CN101158121B Process for manufacturing dissolved pulp by using ethanol, sulfate and acetic acid |
| 04/05/2011 | US7919667 Absorbent products and methods of preparation thereof |
| 03/30/2011 | EP2300660A2 Method and arrangement for improving the operation of sealing elements of a drum washer |
| 03/30/2011 | CN101994269A Method for producing waste paper pulp using the printed waste paper as raw material |
| 03/30/2011 | CN101994248A Method for preparing stable sodium chlorite solution |
| 03/30/2011 | CN101644011B Totally chlorine-free clean pulping method by separation and utilization of full-stalk kenaf component |
| 03/30/2011 | CN101457503B High strength fiberboard and production method thereof |
| 03/29/2011 | US7914646 Compositions and processes for paper production |
| 03/24/2011 | US20110070214 Bacitracin metal complexes used as bleach catalysts |
| 03/24/2011 | US20110067831 Process for the bleaching of paper pulp |
| 03/23/2011 | CN101314924B Pulping paper-making process with zero discharge of sewage water |
| 03/16/2011 | EP2295631A1 Pressure diffuser internal guide |
| 03/16/2011 | CN201762605U Paper making material pulp rinsing pool |
| 03/16/2011 | CN101649572B Top unloader of pressure type upwash bleaching tower |
| 03/15/2011 | CA2525210C Method for bleaching fibrous material |
| 03/10/2011 | WO2011027029A1 Method and assembly for processing cellulose pulp of wood processing industry |
| 03/10/2011 | US20110056635 Fiberboards, uses and methods of preparation thereof |
| 03/10/2011 | CA2772497A1 Method and assembly for processing cellulose pulp of wood processing industry |
| 03/09/2011 | EP1322814B1 Method for bleaching paper pulp |
| 03/03/2011 | WO2011025446A1 Arrangement and method for washing cellulose pulp |
| 03/03/2011 | WO2011025412A1 Pressure diffuser with less power rating in hydraulic system |
| 03/03/2011 | WO2011024605A1 Method and device for producing products from raw material pulp sheet |
| 03/02/2011 | EP1242679B1 System and process for the oxygen delignification of pulp consisting of lignocellulose-containing material |
| 02/23/2011 | EP2287318A1 Mannanases |
| 02/23/2011 | EP2286028A1 Method for reduction of light-induced yellowing of lignin-containing material |
| 02/23/2011 | EP2286024A1 Process for the bleaching of paper pulp |
| 02/23/2011 | CN101981250A Device and method for dilution of cellulose pulp |
| 02/23/2011 | CN101781862B Process for integrating pulping and bleaching by using ultrasonic wave |
| 02/22/2011 | US7892812 Chrysosporium cellulase and methods of use |
| 02/22/2011 | CA2488887C Chemically cross-linked cellulosic fiber and method of making same |
| 02/21/2011 | CA2713249A1 Manure separator |
| 02/17/2011 | US20110036524 Method of bleaching a pulp |
| 02/16/2011 | EP2284272A1 Mannanases |
| 02/16/2011 | EP1592839B1 Method for washing pulp in a bleaching line and a bleaching line |
| 02/16/2011 | EP1240385B1 Oxidised white liquor in an oxygen delignification process |
| 02/16/2011 | CN101421457B A method and a device for feeding pulp from a dewatering unit |
| 02/15/2011 | US7887671 Method for dilution of cellulose pulp |
| 02/10/2011 | WO2011015297A1 Method for reducing negative effects of adhesive contaminants in systems of substances comprising waste paper |
| 02/09/2011 | CN201738179U Hydrasieve pulp concentration device |
| 02/09/2011 | CN101967771A Method for improving paper pulp bleaching property |
| 02/09/2011 | CN101519856B Method for utilizing noil generated in the treatment process of long vegetable fiber for pulping and papermaking |
| 02/09/2011 | CN101358436B Banana tree paper manufacture technique, slurry storage technique and sewage disposal technique thereof by soft chemistry method |
| 02/09/2011 | CN101215796B Discharging device for middle and high concentration reserving tower |
| 02/08/2011 | CA2663748C Rapid fatty acid assay for use in pulp pitch control |
| 02/02/2011 | EP1590074B1 Apparatus for mixing |
| 02/02/2011 | CN101189388B Arrangement and method for treatment of cellulose pulp involving means for seal adjustment. |
| 02/02/2011 | CN101014738B Apparatus and method for washing pulps |
| 01/27/2011 | US20110017646 Apparatus For Washing And Dewatering Pulp |
| 01/26/2011 | EP2276883A1 Method of bleaching pulp with ozone, chlorine dioxide and peroxide |
| 01/26/2011 | EP2276695A1 Direct synthesis of aqueous hydrogen peroxide solution at the site of a paper mill |
| 01/26/2011 | CN101960069A Method of bleaching a pulp |
| 01/26/2011 | CN101960068A Pulp washing agent and process for production of pulp |
| 01/26/2011 | CN101955958A Genes, plasmid, bacterial strain and application of xylanase |
| 01/26/2011 | CN101955921A Novel endoglucanases |
| 01/26/2011 | CN101171388B Process for producing mechanical pulp suitable for paper or cardboard making |
| 01/25/2011 | US7875314 Method for using receiver medium having adjustable properties |
| 01/20/2011 | WO2011008289A2 Industrial cleaning compositions and methods for using same |
| 01/19/2011 | EP2274473A1 A distribution device for feeding of cellulose pulp |
| 01/19/2011 | EP2274472A1 Simplified method for digestion of cellulosic biomass |
| 01/19/2011 | CN101671974B Sunflower stalk pulping technology |
| 01/19/2011 | CN101492891B Method for producing and bleaching slasher sizing with oil windmill palm empty fruit fibre |
| 01/18/2011 | CA2439444C Improved method for using water insoluble chemical additives with pulp and products made by said method |
| 01/13/2011 | WO2011004301A1 Process for producing microfibrillated cellulose |
| 01/13/2011 | WO2011004300A1 Process for producing microfibrillated cellulose |
| 01/13/2011 | WO2011004284A1 Process for the production of microfibrillated cellulose and produced microfibrillated cellulose |
| 01/13/2011 | US20110005697 Process and composition for preparing a lignocellulose-based product, and the product obtained by the process |
| 01/13/2011 | CA2767304A1 Process for the production of microfibrillated cellulose and produced microfibrillated cellulose |
| 01/13/2011 | CA2767290A1 Process for producing microfibrillated cellulose |
| 01/13/2011 | CA2767067A1 Process for producing microfibrillated cellulose |
| 01/12/2011 | EP2273006A1 Bleaching of substrates |
| 01/12/2011 | EP1611282B1 Process for bio-bleaching of kraft pulp using bacterial consortia |
| 01/12/2011 | CN201704576U Round net concentrating machine |
| 01/12/2011 | CN201704575U Pulp bridging prevention device |
| 01/12/2011 | CN101942775A Medium and high-concentration pulp ozone bleaching device |
| 01/12/2011 | CN101942428A Polypeptides of botryosphaeria rhodina |
| 01/12/2011 | CN101220569B Pulping bleaching assistant and cold soaking pulping process |
| 01/11/2011 | US7867357 high molecular weight; stable aqueous polymer solution contains a homopolymer of acrylic acid, methacrylic acid or maleic acid, or a copolymer of acrylic acid and/or methacrylic acid with an unsaturated dicarboxylic acid; acidic pH; easily adjusted for the right pH |
| 01/06/2011 | WO2011002350A1 Support structure for central shaft in pulp washing equipment |
| 01/06/2011 | US20110000847 Method for producing particles electrostatically |
| 01/06/2011 | US20110000632 Process to Make a Clay Comprising Charge-Balancing Organic Ions, Clays Thus Obtained, and Nanocomposite Materials Comprising the Same |
| 01/05/2011 | CN101939481A Detergent for kraft pulp and process for producing kraft pulp with the same |
| 01/05/2011 | CN101938964A Tampon including crosslinked cellulose fibers and improved synthesis processes for producing same |
| 01/05/2011 | CN101613975B Method for preparing bleached chemi-mechanical pulp for culture paper making by using cotton wood to process remainder |
| 01/05/2011 | CN101451327B Low brightness pulp prepared by alkaline steam cooking wheat straw raw material, preparation method and use thereof |
| 01/04/2011 | CA2627846C Process for bleaching lignocellulose pulp |
| 01/04/2011 | CA2505525C Method and arrangement in making of mechanical pulp |
| 01/04/2011 | CA2412444C Aldehyde donors for stabilizing peroxides in papermaking applications |
| 01/04/2011 | CA2387822C Fibers from plant seeds and use |
| 12/29/2010 | EP2265760A1 Method for providing a nanocellulose involving modifying cellulose fibers |
| 12/29/2010 | CN201686885U Thermal disperser with self-control device |
| 12/29/2010 | CN101929089A Wet catalytic oxidation clean pulping process and equipment for implementing same |
| 12/29/2010 | CN101929088A Waste paper pulping method |
| 12/29/2010 | CN101928485A Waste paper deinking agent |
| 12/29/2010 | CN101597870B Production process of cotton pulp for cellulose triacetate |
| 12/29/2010 | CN101565915B Process for producing enhanced wood fiber sponge |
| 12/29/2010 | CN101492893B Process for manufacturing calcium carbonate composite fiber and uses thereof |
| 12/29/2010 | CN101235607B Method for producing natural antibacterial bamboo fiber |
| 12/28/2010 | US7857906 Dispersant selected from cationic quaternaryamine surfactants, alkylalkoxylsilane, alkoxylsilane, and halide organosilane binds hydroxyl groups on cellulose fiber surfaces so as to inhibit bonding between hydroxyl groups of different fibers, thereby reducing inter-fiber hydrogen bonding |