| Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432) |
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| 10/09/2008 | DE102008016264A1 Fiber suspension flow supplying method for removing printing ink or impurity, involves sucking amounts of air in flows such that load of mixture of air and fiber mass is different at points, where mixture leaks out/exhausts from diffuser |
| 10/08/2008 | CN101280466A Hemp dissolving pulp for chemical fabrics and production method thereof |
| 10/08/2008 | CN101280133A Water-based composite deinking agent |
| 10/07/2008 | CA2432788C Alkaline extraction stages comprising xylanase |
| 10/02/2008 | US20080236769 pulping waste printed paper with hydrolase enzyme capable of dislodging ink particles from the waste printed paper in an aqueous medium at a contrlled pH and removing the dislodged ink particles from the resulting pulp containing medium; recycling waste printed paper |
| 10/01/2008 | EP1974092A2 Use of modified inorganic particles in deinking |
| 10/01/2008 | CN101275369A Cellulose-dissolved dissolvant and industrial method thereof |
| 10/01/2008 | CN101275292A Production process for tea viscose fiber |
| 10/01/2008 | CN100421546C Hydrophobic fruit bag paper and preparation method thereof |
| 09/25/2008 | US20080230193 Composition Containing Amphoteric Water-Soluble Polymer |
| 09/24/2008 | CN101270500A Pulp boiling technique with liquid pressing mode |
| 09/24/2008 | CN101270371A Preprocessing method for biomass |
| 09/18/2008 | WO2008111613A1 Endoglucanase ppce and cellulase preparation containing the same |
| 09/18/2008 | WO2008110456A2 Method of treating cellulosic materials with hydrophobins |
| 09/18/2008 | CA2680656A1 Endoglucanase ppce and cellulase preparation containing the same |
| 09/18/2008 | CA2679719A1 Method of treating cellulosic materials with hydrophobins |
| 09/17/2008 | EP1969123A1 Novel enzymes |
| 09/17/2008 | CN101265673A Biological paper making and pulping method |
| 09/12/2008 | WO2008106895A1 Process for refining and producing cellulose, lignin and xylose from biomass material |
| 09/11/2008 | DE112006002685T5 Diffusor für einen Injektor in einer Flotationszelle und Verfahren zum Zuführen einer Fasersuspension in die Flotationszelle A diffuser of an injector in a flotation cell and method of feeding a fiber suspension in the flotation cell |
| 09/10/2008 | CN101263260A Process for repulping wet-strength broke |
| 09/10/2008 | CN100417500C Arundo donax pulp, paper product and flakeboard |
| 09/04/2008 | DE102007010035A1 Method for preparing calcium compounds especially for paper and cardboard recycling by adding carbon dioxide to the aqueous suspension |
| 08/28/2008 | US20080206836 Modified glucanase for use in textile and fabric treatment, detergents and papermaking |
| 08/27/2008 | CN101250827A Preparation of dialdehyde carboxymethyl cellulose and method for testing aldehyde group content |
| 08/27/2008 | CN101250826A Method for manufacturing cellulose by cast tow fibre |
| 08/21/2008 | US20080199938 Glucanse comprising substituted amino acids for use in enhancing detergents and improving the touch and/or appearance of cellulose-containing fabric |
| 08/20/2008 | EP1957709A1 Method of producing paper and cardboard |
| 08/20/2008 | CN101245566A Method for selective liquefaction of lignocellulose with phynol |
| 08/20/2008 | CN101245565A Zero discharge clean method for producing corn cane man-made fiber pulp, xylitol |
| 08/13/2008 | EP1956135A1 Apparatus for treating papermaking feedstock |
| 08/12/2008 | US7410553 Building construction felt paper with biocide/anti-microbial treatment |
| 08/06/2008 | CN201095708Y Fibre vacuum separator |
| 08/06/2008 | CN101235613A Method for preparing glue-free lightweight high-strength fiber board |
| 08/06/2008 | CN101235606A Lignocellulose pretreatment method and system |
| 08/06/2008 | CN101235605A Lignocellulose pretreatment method and system containing acid recovery |
| 08/06/2008 | CN101235604A Method for extracting cellulose from straw |
| 08/06/2008 | CN101235095A Method for completely dissolving lignocellulose biomass, device and application thereof |
| 07/30/2008 | CN201092632Y Preparation device special for agriculture stalk fibre |
| 07/30/2008 | CN101230547A Method for preparing cellulose and carboxymethyl cethylose by wood fibre material |
| 07/30/2008 | CN101230546A Combined pretreatment method of wood cellulose and system thereof |
| 07/24/2008 | DE102007002514A1 Verfahren zum Herstellen von hochwertigen Papieren A process for producing high quality papers |
| 07/23/2008 | CN101225618A Pulp concentration adjusting method and device for used paper recycling apparatus |
| 07/23/2008 | CN101225615A Method for producing low basis weight newsprint by 100 percent deinking waste pulp added with retention and drainage agent |
| 07/22/2008 | US7402224 The addition of acetic acid to formic acid makes it possible to increase considerably the power of the liquid organic phase to dissolve hemicelluloses and lignins without affecting the capacity of formic acid for the acid hydrolysis of these biopolymers |
| 07/16/2008 | CN101223315A Process for deinking recycled fibers and use of an acid in deinking |
| 07/16/2008 | CN101220567A Method for controlling with 100aste newsprint paper deinked pulp esterase |
| 07/16/2008 | CN101220566A Method for separating lignocellulose-containing biomass with methanoic acid |
| 07/08/2008 | US7396434 Catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein |
| 07/03/2008 | WO2008011325A3 Infrared-absorbing ticket stock and method of making same |
| 06/25/2008 | CN101205691A Cotton linter pulping process |
| 06/25/2008 | CN100396846C Method for defibring recycled fibre material in a drum pulper, and a drum pulper |
| 06/24/2008 | US7390378 Durable curl to papermaking fibers; pressurized rotating drum; controlling temperature |
| 06/19/2008 | US20080145912 Cellulytic enzyme for use in paper making, textile treatment and laundry detergents |
| 06/19/2008 | DE102006000514A1 Stofflöser zur Zerkleinerung und Suspendierung von Papierstoff sowie seine Verwendung Pulper for comminuting and suspending paper stock and its use |
| 06/19/2008 | CA2847243A1 Methods of processing biomass comprising electron-beam radiation |
| 06/11/2008 | CN101198746A 浮选室 Flotation chamber |
| 06/05/2008 | DE102006057566A1 Making low-emission raw material from lignocellulose-based material for use in further processing, e.g. to fibreboard, involves treatment in aqueous medium with enzymes such as hydrolases, oxidases or peroxidases |
| 06/04/2008 | CN100392179C Fibers from plant seeds and use |
| 06/04/2008 | CN100392178C Cow dung paper pulp producing process with cow dung as material |
| 05/29/2008 | US20080124499 Printing Paper and a Method for the Production Thereof |
| 05/29/2008 | US20080121359 Methods and Systems for Pretreatment and Processing of Biomass |
| 05/27/2008 | US7378149 High strength material using cellulose microfibrils |
| 05/27/2008 | US7377993 Methods for reducing fluorescence in pulp and paper |
| 05/21/2008 | CN101184890A Removal of organic deposits from recycled fibers used for producing paper |
| 05/21/2008 | CN101182686A Decrystallizing method of cellulose in ion liquid |
| 05/20/2008 | US7374921 Cellulase tolerant to surfactants |
| 05/20/2008 | CA2256005C Process for deinking papermaking pulp obtained from recycled paper |
| 05/15/2008 | WO2008035368A3 Core board |
| 05/15/2008 | US20080110585 Enhanced fiber additive; and use |
| 05/14/2008 | CN101177919A Method for improving whiteness and flotation effect in paper-making deinking process |
| 05/08/2008 | US20080105393 Oxidation of a substrate having at least one primary hydroxyl groups, e.g., carbohydrates, polysaccharides or cellulose fiber, by reacting with a nitrosonium ion in the presence of an oxidase and hydrogen peroxide to form aldehydes and/or carboxy groups; environment; kinetics; papermaking; pulps |
| 05/07/2008 | CN100386478C Method for quickly extracting bacteria cellulose from mother liquor |
| 05/06/2008 | US7368036 Exposing kraft, soda, or sulfite pulp to a first chlorine dioxide bleaching stage; treating with a xylanase in a mild extraction stage; exposing to a second chlorine dioxide bleaching stage without an alkaline extraction stage; reduced usage of sodium hydroxide; high strength, high yield |
| 04/30/2008 | CN101171388A Process for producing mechanical pulp suitable for paper or cardboard making |
| 04/30/2008 | CN101168930A Paper pulp deinking method and system in paper-making process from waste paper |
| 04/29/2008 | US7364642 Recycling of latex-containing broke |
| 04/29/2008 | US7364640 Prepulping; refining; filtration; dehydration; adjustment of pH; separation |
| 04/29/2008 | CA2448862C Method for separating hemicelluloses from a biomass containing hemicelluloses |
| 04/24/2008 | WO2007084711A3 Use of gr2 proteins to modify cellulosic materials and to enhance enzymatic and chemical modification of cellulose |
| 04/17/2008 | DE112006001002T5 Verfahren zur Herstellung mechanischen Zellstoffs, der zur Herstellung von Papier oder Pappe geeignet ist A process for producing mechanical pulp suitable for making paper or paperboard |
| 04/16/2008 | CN101161926A Regeneration processing method for waste paper |
| 04/09/2008 | CN101160431A Method for separating the main components of lignocellulosic materials |
| 04/09/2008 | CN101158137A Method for manufacturing lightweight acoustic insulation shock-proof wood-based panel by employing waste and old fibre |
| 04/09/2008 | CN101158136A Method for manufacturing lightweight acoustic insulation shock-proof wood-based panel by employing waste papers |
| 04/09/2008 | CN100379922C Deinking agent and deinking agent composition |
| 04/08/2008 | CA2376795C Method and apparatus for preparing paper pulp from used paper |
| 04/03/2008 | US20080078516 Composite panels, pulp, paper; conventional pulping processes, produce a high tensile strength pulp, lighter color than wood pulp, and uses less bleaching chemicals to achieve a desired whiteness; can be combined with wood pulp to produce a variety of products |
| 04/03/2008 | DE102006020968B4 Verfahren zur Entfernung von Störstoffen aus einer wässrigen Fasersuspension A method for removing anionic trash from an aqueous fiber suspension |
| 04/02/2008 | EP1527204B1 Production of a fermentation product |
| 04/02/2008 | CN101155957A Method of recycling fibers from sewage sludge and means thereof |
| 04/02/2008 | CN100377790C Method for controlling flotation groove working |
| 03/27/2008 | WO2008035368A2 Core board |
| 03/27/2008 | WO2008034953A1 Flotation in recycled fibre process |
| 03/27/2008 | US20080075900 Biocomposite Material |
| 03/27/2008 | US20080073042 Process for enzymatic deinking of printed papers |
| 03/26/2008 | CN101148851A Green regeneration bank note |
| 03/20/2008 | US20080070284 Pulp delignification/bleaching; coupling graft polymers; hydrolases |
| 03/19/2008 | EP1899272A1 Use of ashes as an alternative alkalising agent |
| 03/19/2008 | EP1163328B1 An enzymatic treatment method |