| Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432) |
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| 01/04/2005 | CA2360751C Multicomponent system for enzyme-catalyzed oxidation of substrates and process for the enzyme-catalyzed oxidation |
| 12/23/2004 | US20040256065 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 12/18/2004 | WO2005001195A1 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 12/18/2004 | CA2485520A1 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 12/14/2004 | US6830655 Method of modifying a xylan-containing carbohydrate substrate having hexenuronic acid groups attached to the xylan |
| 12/08/2004 | EP1483442A2 Novel catalytic activities of oxidoreductases for oxidation and/or bleaching |
| 12/08/2004 | CN1178753C Apparatus for cleaning suspension, preferably fibre mass suspension |
| 12/02/2004 | US20040238134 Microwave pre-treatment of logs for use in making paper and other wood products |
| 12/02/2004 | US20040238133 Energy efficiency; compaction of wood chips using plug screw |
| 12/01/2004 | EP1482033A1 Cellulose digesting enzyme gene and utilization of the gene |
| 12/01/2004 | CN1550548A Modification of xylanase to improve thermophilicity, alkophilicity and thermostability |
| 12/01/2004 | CN1550267A Raw material separating and treating method |
| 11/30/2004 | US6824646 Utilizing a waste water delivered from an enzyme treatment step as a liquid medium of an alkali-oxygen bleaching step; hemicellulose treatment returned to a preceeding alkali-oxygen bleaching step, without deteriorating the bleaching |
| 11/25/2004 | WO2004101889A2 Use of hemicellulase composition in mechanical pulp production |
| 11/25/2004 | WO2004092479A3 Enzymatic treatment of paper making pulps |
| 11/25/2004 | US20040232053 Process for de-inking paper pulp and flotation cell used for this process |
| 11/24/2004 | EP1479765A2 Enzymes with xylanase activity from aspergillus aculeatus |
| 11/24/2004 | EP1478802A2 Method for ozone treatment of used paper |
| 11/23/2004 | US6821387 Use of fractionated fiber furnishes in the manufacture of tissue products, and products produced thereby |
| 11/18/2004 | US20040226672 using cutlinase, lipases in manufacturing paper |
| 11/17/2004 | EP1477607A1 Process for de-inking paper pulp and flotation cell used for this process |
| 11/17/2004 | EP1476600A1 Chemical compounds and methods for removing dye |
| 11/04/2004 | WO2004094718A1 Deinking agent and deinking agent composition |
| 11/04/2004 | WO2004094624A1 Isolation and use of decay fungi |
| 11/04/2004 | US20040216854 Arundo donax composite panel |
| 11/02/2004 | US6811655 Apparatus for preparing paper pulp from used paper |
| 10/28/2004 | WO2004092479A2 Enzymatic treatment of paper making pulps |
| 10/28/2004 | WO2004092478A1 Impregnation of chips with an acid liquid prior to a sulphate pulping process |
| 10/28/2004 | US20040211533 reductive decoloration of paper using aqueous solutions comprising sodium borohydride, sodium hydroxide and sodium bisulfite |
| 10/28/2004 | US20040211532 dehydration of waste paper slurries containing ink and water; waste recycling; fuels for fuel cells |
| 10/28/2004 | CA2521638A1 Enzymatic treatment of paper making pulps |
| 10/27/2004 | EP1471181A2 Biopulp for non-woody fiber plants and biopulping method thereof |
| 10/27/2004 | CN1541291A Method for preparing homogenous cellulosic product from cellulosic waste materials |
| 10/20/2004 | EP1469126A1 High strength material using cellulose micro-fibril |
| 10/20/2004 | EP1469124A1 Use of a composition for whitening recycled paper and board pulp |
| 10/20/2004 | EP1469122A2 Non-woody fiber mulching mat and production method thereof |
| 10/14/2004 | US20040200778 Quality analysis by measuring liquid level and the foam level in the chambers; deinking operation |
| 10/13/2004 | CN1535762A Method for controlling flotation groove working |
| 10/07/2004 | WO2004085735A1 Methods for bleaching of cellulosic materials |
| 09/30/2004 | WO2004083520A1 Process for bio-bleaching of kraft pulp using bacterial consortia |
| 09/30/2004 | US20040188480 Method of separating colouring agents, particularly printing ink, from recycled fibre material |
| 09/29/2004 | EP1462565A1 Method for producing a plant nutrition composition from a biopulp filtrate and a formulated plant nutrition so produced |
| 09/29/2004 | EP1462524A1 Cellulase preparations containing reducing agent and method of processing fiber |
| 09/29/2004 | CN1532334A Method for producing non-wood fiber covered mat |
| 09/29/2004 | CN1532330A Biological pulping method for non-wood fiber plant |
| 09/29/2004 | CN1532171A Formula and prepn process of plant nutrition liquid prepared by using plant fiber biological pulping recovery liquid |
| 09/23/2004 | DE102004010196A1 Verfahren und Vorrichtung zum Austragen von lignozellulosem Rohmaterial aus einem Kocher und zur Förderung des Rohmaterials zu einem Refiner Method and apparatus for discharging a digester from lignocellulosic raw material and for the promotion of the raw material to a refiner |
| 09/22/2004 | EP1003871B1 Trichoderma reesei swollenin protein and encoding dna sequence |
| 09/15/2004 | EP1457597A2 Method for regulating the operation of a flotation cell |
| 09/15/2004 | CN2641098Y High density waste pulp tower |
| 09/10/2004 | WO2003061550A3 Novel catalytic activities of oxidoreductases for oxidation and/or bleaching |
| 09/08/2004 | EP1454008A1 Method of separating colouring agents, particularly printing ink,from recycled fibre material |
| 09/08/2004 | EP0975740B1 Method for enhancing the activity of an enzyme, bleach composition, detergent composition and process for inhibiting dye transfer |
| 09/02/2004 | US20040171136 Apparatus comprising water impermeable layer for processing lignocellulosic materials; pulp and paper processing; biodegration and remediation |
| 09/02/2004 | US20040168960 Methods and systems for pretreatment and processing of biomass |
| 08/31/2004 | US6784146 Deinking method and composition for wastepaper |
| 08/31/2004 | CA2322439C Cotton linter tissue products and method for preparing same |
| 08/26/2004 | US20040163780 Culturing suspension of microorganisms; fermentation; boiling, pulping, screening; recycling waste straws; papermaking |
| 08/26/2004 | US20040163779 Using aqueous ethanol solvent; brightness |
| 08/25/2004 | EP1449960A2 Production of soft paper products from coarse cellulosic fibers |
| 08/25/2004 | EP1448848A1 Oxidizing enzymes in the manufacture of paper materials |
| 08/25/2004 | EP1448846A1 Microwave pre-treatment of logs for use in making paper and other wood products |
| 08/25/2004 | EP1268923B1 Process for reducing sticky contaminants in stock systems containing waste paper and in coated broke |
| 08/21/2004 | CA2457820A1 Method for hydrogen peroxide bleaching of pulp |
| 08/19/2004 | WO2004048680A3 Method of removing printing ink from waste paper by flotation deinking |
| 08/12/2004 | US20040154762 Eucalyptus biomechanical pulping process |
| 08/12/2004 | DE10303646A1 Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension A method for removing anionic trash from an aqueous paper fiber suspension |
| 08/11/2004 | EP1289683B1 Method for processing waste and waste processing plant |
| 08/10/2004 | CA2118304C Treatment of cellulosic material and compositions for use in this |
| 08/05/2004 | US20040151618 Method of increasing the conductivity of water and uses therefor |
| 08/04/2004 | EP1443143A2 Method for removing contaminants from an aqueous fibrous suspension |
| 08/04/2004 | EP0799304B1 Bacterial protein with xylanase activity |
| 07/22/2004 | WO2004061224A1 Paper pulp, method for the production thereof, and use of the paper pulp |
| 07/21/2004 | EP1438459A1 A method for preparing a homogenous cellulosic product from cellulosic waste materials |
| 07/14/2004 | EP1436371A2 Enzymatic systems for generating active oxygen species for reacting with other precursors to obtain oxidation and/or bleaching |
| 07/13/2004 | US6761798 Method for forming an Arundo donax paper product |
| 07/13/2004 | CA2157880C Persulfate mixtures for repulping wet strength paper |
| 07/06/2004 | CA2157512C Process and enzyme preparation for preparing mechanical pulp |
| 07/01/2004 | US20040124156 System and method for processing waste material |
| 06/30/2004 | CN1155700C Modification of xylanase to improve thermophilicity, alkophilicity and thermostability |
| 06/30/2004 | CN1155316C Method for extracting phytyl-cellutose and carbonized cellulose from green leaves |
| 06/24/2004 | US20040122245 Triacylglycerol oligomer products and methods of making same |
| 06/23/2004 | EP1299595A4 Method for preparing pulp from cornstalk |
| 06/22/2004 | CA2093581C Process for conglutinating wood particles into formed bodies |
| 06/20/2004 | CA2414928A1 System and method for repulping of paper products with dipolar solvents |
| 06/18/2004 | CA2414701A1 Triglyceride emulsion for deinking process |
| 06/17/2004 | WO2004050986A1 A process for obtaining a cellulosic wet sheet and a membrane the equipment used to obtain the membrane and the membrane obtained. |
| 06/17/2004 | WO2004050985A1 Removal of pitch from wood chips |
| 06/17/2004 | US20040112555 Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof |
| 06/16/2004 | EP1015123B1 Apparatus for cleaning a suspension, preferably a fiber mass suspension |
| 06/10/2004 | WO2004048680A2 Method of removing printing ink from waste paper by flotation deinking |
| 06/08/2004 | CA2212318C Multi-component system for modifying, degrading or bleaching lignin, lignin-containing materials or similar substances and processes for its use |
| 06/03/2004 | WO2004027033A3 Lentiviral vector-mediated gene transfer and uses thereof |
| 06/03/2004 | US20040104003 Eucalyptus biokraft pulping process |
| 06/03/2004 | DE10254862A1 Verfahren zur Druckfarbenentfärbung aus Altpapier durch Flotationsdeinking Method for Druckfarbenentfärbung from waste paper by flotation deinking |
| 06/02/2004 | EP1064082B1 Contaminant dispersants useful in recycling of treated containers |
| 06/01/2004 | CA2114436C Dewatering of aqueous suspensions |
| 05/27/2004 | US20040099385 Neutral deinking with a deinking composition comprising a lipase and a fatty acid ester |
| 05/26/2004 | CN1500168A Deinking of waste paper |
| 05/25/2004 | CA2107239C Method for recycling plastic coated paper product waste and polymeric film |