| Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432) |
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| 03/19/2008 | CN101143881A Method for synchronously extracting hemicellulose, cellulose and lignin and reclaiming phenolic acid compounds |
| 03/12/2008 | EP0788541B1 Enzyme preparation with endoglucanase activity |
| 03/12/2008 | CN101139805A High-voltage static atomizing preparing technique for nano-grade cellulosic material |
| 03/12/2008 | CN101139400A method for separating straw acetylized component and preparing straw cellulose acetate |
| 03/05/2008 | EP0876494B1 Production and secretion of actinomycete xylanases in a filamentous trichoderma fungus |
| 03/05/2008 | CN100372995C Process for bio-bleaching of kraft pulp using bacterial consortia |
| 02/27/2008 | EP1891264A1 Flotation cell |
| 02/27/2008 | CN101130935A Low-viscosity cotton pulp used for producing cellulose ether-esters and method for making the same |
| 02/27/2008 | CN101130934A Colored cotton linter pulp used for producing viscose fiber and method for making the same |
| 02/21/2008 | US20080041541 Uso of Cyclodextrin for Reducing Yellowing of Pulp and Paper |
| 02/21/2008 | DE102006020450B4 Verfahren zur Aufbereitung von füllstoffhaltigem Papier, insbesondere von Trockenausschuss Process for the preparation of filler paper, particularly dried Committee |
| 02/20/2008 | EP1889972A1 Core board |
| 02/20/2008 | EP1469126B1 High strength material using cellulose micro-fibril |
| 02/19/2008 | CA2188874C Thermostable xylanases |
| 02/19/2008 | CA2186592C Alkaline bacillus amylase |
| 02/14/2008 | US20080035287 Process For The Treatment Of Fibre Material And New Composition |
| 02/13/2008 | EP1885942A1 An apparatus for distruibuting a pulp flow |
| 02/13/2008 | EP1885941A1 Process for deinking recycled fibers and use of an acid in deinking |
| 02/12/2008 | US7329528 Enzyme multimer and process of producing same |
| 02/07/2008 | US20080029231 Hydrophobically modifed poly[ethylene glycol] for use in pitch and stickies control in pulp and papermaking processes |
| 01/31/2008 | US20080023160 Enzymatic hydrolysis of a polymer comprising vinyl acetate monomer |
| 01/30/2008 | CN100365201C Enzymatic deinking method for waste newspaper |
| 01/30/2008 | CN100365200C Process and device for inflation suspension |
| 01/30/2008 | CN100365199C Method for making pulp using cow dung as raw material |
| 01/24/2008 | DE102006042429B3 Removal of adhesive residues during the recycling of waste paper, comprises disintegrating the waste paper to an aqueous suspension and subjecting the suspension to a physicochemical treatment for separating coarse-grained residues |
| 01/23/2008 | EP1881105A2 Method of reducing the amount of surface active agents when deinking paper and deinking device implementing this method |
| 01/23/2008 | EP1759053B1 Process for deinking waste paper |
| 01/23/2008 | CN100363495C Purified polyporus laccases and nucleic acids encoding same |
| 01/22/2008 | US7320741 Method of xylanase treatment in a chlorine dioxide bleaching sequence |
| 01/22/2008 | CA2319431C Contaminant dispersants useful in recycling of treated containers |
| 01/22/2008 | CA2293318C Modified cellulosic fibers and fibrous webs containing these fibers |
| 01/16/2008 | EP1877619A1 Method of recycling fibers from sewage sludge and means thereof |
| 01/16/2008 | CN101105013A Floatater and method for de-inking waste paper |
| 01/16/2008 | CN101105012A Method for producing high whiteness cotton pulp by using cotton linter |
| 01/16/2008 | CN100362100C Cellulase variants |
| 01/09/2008 | EP1874998A1 Removal of organic deposits from recycled fibers used for producing paper |
| 01/09/2008 | EP1874995A1 Method for separating the main components of lignocellulosic materials |
| 01/09/2008 | CN101103046A Improved biocomposite material |
| 01/09/2008 | CN101100830A Technique for producing sheet-type electronic component paper carrying base paper by using waste paper pulp |
| 01/09/2008 | CN101100822A Method for deinking and decoloring office waste paper by using ion liquid |
| 01/09/2008 | CN101100821A Preparation method and use for ultra-hydrophobic cotton fibrous material or ultra-hydrophobic paper fibrous material |
| 01/02/2008 | EP1873302A2 Method for processing high hemicellulose pulp in viscose manufacture and products therefrom |
| 01/02/2008 | EP1873301A2 Method for processing high hemicullulose pulp in viscose manufacture |
| 01/02/2008 | EP1565611B1 Method of removing printing ink from waste paper by flotation deinking |
| 01/01/2008 | US7314561 Method for purifying water |
| 01/01/2008 | US7314538 Energy efficiency; compaction of wood chips using plug screw |
| 12/26/2007 | CN100357518C Method of deinking |
| 12/26/2007 | CN100357440C Purified polyporus laccases and nucleic acids encoding same |
| 12/21/2007 | WO2007145932A1 Deinking of waste paper |
| 12/21/2007 | WO2007123974A3 Decolorized raw cotton linters and preparation of ether derivatives therefrom |
| 12/20/2007 | US20070289486 Printing Ink and Coating Compositions Containing Starch |
| 12/19/2007 | CN101089285A Physical mechanical deink process for waste paper |
| 12/19/2007 | CN101089284A Press method for hydrocellulose |
| 12/13/2007 | US20070284067 Deinking of waste paper |
| 12/13/2007 | DE102006022892B3 Procedure for the production of paper, comprises introducing water used for the paper production and/or water from additional components contacted with all-metal catalyst, and adding peroxide containing solution to this water |
| 12/12/2007 | CN101087876A Neutral cellulase catalytic core and method of producing same |
| 12/12/2007 | CN101086145A Floatation and ink removing machine |
| 12/12/2007 | CN101085985A Cellulase variants |
| 12/06/2007 | DE102006020450A1 Treatment of dry broke of paper, board or coating machine, comprises diluting the dry broke in water, treating the diluting paper in washing process to reduce thick material and machining the material mechanically by shear forces |
| 12/05/2007 | CN101082196A Pressure injection forming method for paper standardized product |
| 12/05/2007 | CN101082195A Method for making paper standardized product |
| 11/29/2007 | DE102006024405A1 Verfahren zur Reduzierung klebender Verunreinigungen bei der Papierherstellung A process for reducing sticky contaminants in paper manufacture |
| 11/29/2007 | DE102006024404A1 Verfahren zur Verbesserung der Qualität einer Faser-Suspension A method for improving the quality of a fiber suspension |
| 11/27/2007 | CA2165426C Multi-component bleaching system |
| 11/22/2007 | US20070267158 Art material |
| 11/21/2007 | CN101074545A Used paper recycling apparatus and its constituent devices |
| 11/20/2007 | US7297224 Using of cellulase (endoglucanase) effecting a pulp-swelling activity (hydration) in a lower dosage then up to now and which does not lower the paper strength; determination of dosage to minimize the cellulase addition level and lessen the amount of the deinking agent needed; measuring water retention |
| 11/20/2007 | US7296682 Process for controlling operation of a flotation cell |
| 11/15/2007 | WO2007128077A1 Improved paper dyeing process |
| 11/13/2007 | US7294228 Biopulp for non-woody fiber plants and biopulping method thereof |
| 11/13/2007 | CA2316362C Method for separating wax from waste paper |
| 11/08/2007 | DE102006020968A1 Flotation plant for depolluting aqueous fiber suspension, e.g. for paper-making, comprises aerated flotation cells in series connected by additional tubing to allow extra volume flow |
| 11/07/2007 | CN101067289A Method for papermaking utilizing waste paper containing wax |
| 11/07/2007 | CN101067288A Ink remover |
| 11/07/2007 | CN101067287A Producing technology for microcrystalline cellulose with waste acid cotton linter |
| 11/06/2007 | US7291247 Concurrently bleaching, heat treating and convolving cellulosic fiber pulp in bleaching liquor; recovering pulp |
| 11/01/2007 | WO2007123974A2 Decolorized raw cotton linters and preparation of ether derivatives therefrom |
| 11/01/2007 | WO2007122290A1 Method of controlling recycled fibre line, and recycled fibre line |
| 11/01/2007 | WO2007122289A1 Method and measuring device for measuring recycled fibre pulp |
| 11/01/2007 | CA2649580A1 Method and measuring device for measuring recycled fibre pulp |
| 10/31/2007 | CN200967913Y Paper pulp treatment device |
| 10/31/2007 | CN101065535A Method for controlling a bleaching process for waste paper treatment and bleaching device for carrying out said method |
| 10/31/2007 | CN101063279A Mushroom fruiting body cellulose |
| 10/31/2007 | CN101063122A Cellulose digesting enzyme gene and utilization of the gene |
| 10/31/2007 | CN100346030C Xylanase treatment of chemical pulp |
| 10/30/2007 | US7288196 Plant matter packaging method |
| 10/25/2007 | US20070246175 Process for Deinking Waste Paper |
| 10/24/2007 | CN101058953A Method of preparing bleaching dissolved pulp from corn stem |
| 10/24/2007 | CN101058952A Preparation of bamboo protofibre for weave by biological enzyme |
| 10/17/2007 | CN101054779A Regeneration method for waste composite paper film |
| 10/17/2007 | CN101054778A Method for preparing paper pulp by fiber residue generated during microorganism product fermentation |
| 10/16/2007 | US7282113 Method for enzymatic deinking of waste papers, the waste papers so treated and the treating composition |
| 10/16/2007 | US7281631 Process for de-inking paper pulp and flotation cell used for this process |
| 10/11/2007 | DE102006016174A1 Process to recover fiber from waste paper by compression treatment between grinding surfaces driving a rolling action |
| 10/10/2007 | EP1841914A2 System and method for producing a fiber web |
| 10/09/2007 | US7279073 Apparatus for liquid-based fiber separation |
| 10/04/2007 | WO2007071820A9 Novel enzymes |
| 10/03/2007 | EP1552052B1 A method of producing mechanical pulp and the mechanical pulp thus produced |
| 09/20/2007 | WO2007081921A3 Use of modified inorganic particles in deinking |
| 09/18/2007 | CA2414522C Method for preparing pulp from cornstalk |