| Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432) |
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| 05/13/2009 | EP2057291A1 Method and device for thermal enzymatic hydrolysis of ligno cellulose |
| 05/13/2009 | CN101429739A Ultra-low quantitative high-strength corrugated base paper production method and products produced thereby |
| 05/13/2009 | CN101429734A Production of cellulosic molded body by an amine oxide-process using a bamboo paper pulp and molded body produced by the method |
| 05/13/2009 | CN100487192C Biological treatment method of non-wood pulp |
| 05/12/2009 | CA2217290C Deinking process |
| 05/07/2009 | DE102007052461A1 Impurities i.e. larger printing ink particles, removal method for aqueous waste paper suspension, involves performing fractionation of waste paper suspension, removing printing ink particles and fractionating part of fine fraction |
| 05/07/2009 | DE102007052459A1 Wax separating method for preparation of fibers during paper or cardboard production, involves forming aqueous fiber suspension, removing floating layer from containing wax liquid and separating predominant part of liquid wax |
| 05/06/2009 | CN101426974A Method and installation for processing waste paper |
| 05/06/2009 | CN101424056A Atmospheric pre-treatment method of plant fiber material |
| 04/30/2009 | US20090107643 Method For Mechanical Pulp Production |
| 04/29/2009 | EP2007945A4 Cellulose-solvent-based lignocellulose fractionation with modest reaction conditions and reagent cycling |
| 04/29/2009 | CN101418528A Paper stuff made by white food packaging waste paper with abdomen film |
| 04/29/2009 | CN101418527A Deinking process for waste paper |
| 04/22/2009 | CN101413146A Boiling method for preparing cotton linter dissolving pulp by using composite additive |
| 04/22/2009 | CN101413016A Method for preparing microcrystalline cellulose and cellulose fuel ethanol by separating furfural residue |
| 04/15/2009 | CN101408008A Method and equipment for producing moulding corrugated paper sheet by using waste paper |
| 04/15/2009 | CN100478518C Method of preparing pulp by deinking ONP/OMG mixed wastepaper blended with paper making white water |
| 04/09/2009 | WO2009046283A1 Apparatus and methods for treating biomass |
| 04/07/2009 | CA2268386C High molecular weight trichoderma cellulase |
| 04/07/2009 | CA2136350C Xylanases from trichoderma reesei and methods for their production |
| 04/02/2009 | DE102007044952A1 Verfahren zur Behandlung einer Papierfasersuspension A method for treating a paper fiber suspension |
| 04/01/2009 | CN201214732Y 溶解罐 Dissolving tank |
| 04/01/2009 | CN201214731Y Complete plant for pre-dipping process of cotton pulp |
| 03/31/2009 | US7510860 Xylanases with enhanced thermophilicity and alkalophilicity |
| 03/31/2009 | US7510625 to subject materials to high pressure such as breaking apart cellulose fibers and the removal of lignin in the wood pulp industry and the hardening of metals such as golf clubs |
| 03/25/2009 | CN101392467A Manufacturing technique for preparing bamboo fiber by using biophysical technique |
| 03/19/2009 | US20090075330 Xylanases with enhanced thermophilicity and alkalophilicity |
| 03/12/2009 | WO2009031533A1 Flotation apparatus |
| 03/12/2009 | WO2009030713A1 Detoxifying and recycling of washing solution used in pretreatment of lignocellulose-containing materials |
| 03/12/2009 | CA2684236A1 Flotation apparatus |
| 03/10/2009 | CA2319074C Method and device for measuring bleach requirement, bleachability, and effectiveness of hemicellulase enzyme treatment of pulp |
| 03/04/2009 | CN100465373C A method of producing cellulose, lignin and xylose by biomass materials |
| 02/26/2009 | US20090050281 Sanitary sheets made of waste paper and a process of preparing sanitary sheet from waste paper |
| 02/25/2009 | EP2027331A1 Deinking of waste paper |
| 02/25/2009 | CN101372815A Method for separating lignose and cellulose in licorice waste slag by means of ultrasonic technology |
| 02/18/2009 | CN101370980A Use of modified inorganic particles in deinking |
| 02/18/2009 | CN101368347A Technique for producing mlcrocrystalline cellulose by sulfated waste velveteen |
| 02/18/2009 | CN101367878A Method for preparing high-viscosity sodium carboxymethylcellulose with apple residue |
| 02/12/2009 | US20090041896 Use in treatment of paper pulp or animal feeds; enzyme is active over a wide range of temperature and of basic and acid pH |
| 02/11/2009 | EP2021541A1 Method for improving the quality of a fibrous pulp |
| 02/05/2009 | US20090032206 Processes used in the manufacture of paper products |
| 02/03/2009 | CA2237649C Novel xylanase composition and method for production thereof |
| 01/29/2009 | WO2009012566A1 Apparatus for separating from cellulose fibres in paper recycling processes |
| 01/29/2009 | WO2009012555A1 Method and apparatus for separating waste products from cellulose fibres in a paper recycling process |
| 01/29/2009 | US20090025891 Composition and method for improving retention and drainage in papermaking processes by activating microparticles with a promoter-flocculant system |
| 01/29/2009 | CA2693940A1 Apparatus for separating waste from cellulose fibres in paper recycling processes |
| 01/22/2009 | US20090020243 Use of Cyclodextrins for Reducing Deposits During Paper Production |
| 01/14/2009 | EP2013410A1 Method of controlling recycled fibre line, and recycled fibre line |
| 01/14/2009 | EP1664421A4 Chemimechanical desilication of nonwood plant materials |
| 01/14/2009 | CN101346464A Novel enzymes |
| 01/08/2009 | WO2009003606A1 High-strength fibrous material consisting of natural fibres, method for the production thereof, and use of same for producing composite materials |
| 01/08/2009 | CA2694070A1 High-strength fibrous material consisting of natural fibres, method for the production thereof and use of same for producing composite materials |
| 01/07/2009 | EP2010902A1 Method and measuring device for measuring recycled fibre pulp |
| 01/07/2009 | CN101337607A Polystyrene foam recovery regeneration buffer packing gasket and production method thereof |
| 01/07/2009 | CN100448988C Culture having phenol oxidase-like activity |
| 01/06/2009 | CA2154628C Xylanase, microorganisms producing the same, dna molecules, process for preparing said xylanase and uses thereof |
| 01/02/2009 | DE102007029806A1 Verfahren zur Aufbereitung von Altpapier Process for the treatment of waste paper |
| 01/02/2009 | DE102007029805A1 Verfahren zur Erzeugung von mehrlagigem Karton oder Verpackungspapier aus Altpapier Process for the production of multi-layer cardboard or paper packaging from recycled paper |
| 12/31/2008 | EP2007945A1 Cellulose-solvent-based lignocellulose fractionation with modest reaction conditions and reagent cycling |
| 12/31/2008 | CN101333778A Method for producing dissolving pulp by oxygen continuous digesting method |
| 12/31/2008 | CN101333777A Method for high-efficiency hydrolyzing lignocellulose raw material in ionic liquid |
| 12/31/2008 | CN101331979A Method for producing cigarette filter tip material using crop straw viscose fiber |
| 12/30/2008 | CA2318387C Calcium carbonate synthesis method and resulting product |
| 12/24/2008 | WO2008156984A1 Use of cyclodextrins in controlled architecture polymer synthesis |
| 12/24/2008 | CN101328695A Production process of cotton pulp for manufacturing automobile oil-gas filter parer |
| 12/24/2008 | CN101328692A Paper pulp fabrication process and system |
| 12/24/2008 | CN100445465C Method for producing non-wood fiber covered mat |
| 12/23/2008 | CA2241968C Production and secretion of proteins of bacterial origin in filamentous fungi |
| 12/17/2008 | CN101324034A Method for producing sodium carboxymethylcellulose from waste coated paper |
| 12/11/2008 | DE19723629B4 Verfahren zum Behandeln von Lignin, ligninhaltigen Materialien oder ähnlichen Stoffen A method for treating lignin, lignin-containing materials or similar substances |
| 12/10/2008 | EP1571207B1 Novel cellulase tolerant to surfactants |
| 12/04/2008 | WO2008030341A3 Reduced dust acoustic panel |
| 12/04/2008 | US20080295986 Method of Producing Paper and Cardboard |
| 12/03/2008 | EP1996702A1 Polypeptides with laccase activity |
| 12/03/2008 | CN101314925A Method of producing stalk composite fiber material for road |
| 11/26/2008 | EP1995303A2 Enzyme preparation with endoglucanase activity |
| 11/26/2008 | CN100436586C Endoglucanase NCE5 and cellulase preparations contg. same |
| 11/18/2008 | CA2300094C Apparatus for cleaning a suspension, preferably a fiber mass suspension |
| 11/13/2008 | DE102004010196B4 Vorrichtung zum Austragen von lignozellulosem Rohmaterial aus einem Kocher und zur Förderung des Rohmaterials zu einem Refiner Device for the removal of lignocellulosic raw material from a boiler and the promotion of the raw material to a refiner |
| 11/12/2008 | EP1462524B1 Cellulase preparations containing reducing agent and method of processing fiber |
| 11/12/2008 | CN101302725A Process for producing cotton dissolving pulp |
| 11/05/2008 | CN101298744A Method for stalk liquefaction preprocessing to prepare fuel ethyl hydrate raw material |
| 11/05/2008 | CN101298743A Method for deinking and degumming of waste book and newspaper |
| 11/04/2008 | US7445922 Enhance effects of an endoglucanase enzyme on fabric treatment such as reduction of fuzzing, improvement in feel and appearance, color clarification, partial color change, and softening of cellulose-containing fabrics |
| 11/04/2008 | US7445691 Impregnation of chips with an acid liquid prior to a sulphate pulping process |
| 10/30/2008 | US20080264585 providing an aqueous pulp suspension containing recycled fibers, printing ink and CaCO3; stabilizing the hardness of pulp suspension by causing dissolution of CaCO3 by mixing a weak acid ( citric acid, acetic acid, formic acid, H3PO4 ), subjecting the suspension to flotation to separate printing ink |
| 10/30/2008 | US20080264584 New Composition and Process for the Treatment of Fibre Material |
| 10/29/2008 | CN101294360A Dry, wet strength paper dissociation agent and degradation technique thereof |
| 10/29/2008 | CN101294358A Technique for preparing cotton pulp with high-degree of polymerization for cellulose ether |
| 10/23/2008 | WO2008125313A1 Method and device for treating waste paper |
| 10/22/2008 | CN101289825A Method for preparing fibre humidity-controlling board and apparatus |
| 10/22/2008 | CN101289818A Process for preparing dissolved pulp by oxidative degradation of linters |
| 10/22/2008 | CN101289817A Process for effectively hydrolyzing cellulose in ion liquid |
| 10/22/2008 | CN100427680C High-temp. hot-pressing type bedding paper and its prodn. method |
| 10/22/2008 | CN100427676C Method of preparing paper pulp utilizing microwave technique |
| 10/16/2008 | WO2008123130A1 Method of deinking waste printed paper |
| 10/16/2008 | WO2008122692A1 Injector for flotation cell |
| 10/16/2008 | DE102007017987A1 Verfahren und Vorrichtung zum Aufbereiten von Altpapier Method and apparatus for treating waste paper |
| 10/16/2008 | CA2681140A1 Method of deinking recovered paper |
| 10/15/2008 | CN101285284A Preparation method of thermoplastic waste paper |