| Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432) |
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| 07/24/2001 | CA2137451C Bleaching recycled pulp with a reductive-oxidative sequence |
| 07/24/2001 | CA2137450C Bleaching recycled pulp with ozone and hydrogen peroxide |
| 07/18/2001 | EP1115944A1 Method for preparation of a fibrous stock out of herb-stemmed plants |
| 07/18/2001 | EP0929713B1 Separation of solids from aqueous suspensions |
| 07/17/2001 | US6261829 Process for combating microorganisms |
| 07/12/2001 | US20010007277 Process and compositions for repulping paper |
| 07/11/2001 | EP1114219A1 Calcium carbonate synthesis method and resulting product |
| 07/10/2001 | US6258209 Multi-component system for modifying, degrading or bleaching lignin, lignin-containing materials or similar substances |
| 07/10/2001 | US6258207 Alkaline peroxide mechanical pulping of non-woody species |
| 07/04/2001 | EP0885325B1 Magnetic deinking of waste papers |
| 07/03/2001 | US6255375 Repulpable hot melt paper coating and coated product |
| 07/03/2001 | US6254722 Method for making dissolving pulp from paper products containing hardwood fibers |
| 07/03/2001 | CA2154944C Thermostable xylanase dna, protein and methods of use |
| 06/28/2001 | WO2001046517A1 Delignified corn grain fiber and methods of making and using |
| 06/26/2001 | US6251221 Impregnating the ligno-cellulosic feed stock with an extraction liquor containing a glycol and an organic or lewis acid |
| 06/26/2001 | US6251220 Wastepaper deinking method using amine or acid salt of amine in the flotation stage |
| 06/20/2001 | CN1299902A Enzyme process of eliminating ink from waste paper |
| 06/19/2001 | US6248793 Contaminant dispersants useful in recycling of treated containers |
| 06/19/2001 | US6248207 Screening suspension to remove fibers, filtrate is dispersed in air flotation in the presence of calcium and a separation aid to form an upper fraction where the hydrophobic material is concentrated and lower fraction of cellulosic fines |
| 06/13/2001 | CN1299426A Cotton linter tissue products and method for preparing same |
| 06/13/2001 | CN1299422A Method for mfg. a fibre mat, fibre mat and use of such fibre mat |
| 06/12/2001 | US6245874 Adding to aqueous pulp suspension strength additive comprising ionic thermosettable resin, reaction product of dialdehyde and epihalohydrin with copolymer containing units derived from acrylamide and diallylamine, forming paper web, drying |
| 06/12/2001 | US6245195 Decontamination of waste papers |
| 06/06/2001 | CN1066792C Deinking method |
| 06/05/2001 | US6242245 Multicomponent system for modifying, degrading or bleaching lignin or lignin-containing materials, and processes for its use |
| 06/05/2001 | US6241849 Pulping printed paper to obtain slurry, dislodging ink from slurry with enzymes, decolorizing dye with laccases (fungal, bacterial) in presence of oxygen and mediators, separating released ink from slurry, and recovering decolorized pulp |
| 05/30/2001 | EP1056902A4 Process for production of chemical pulp from herbaceous plants |
| 05/29/2001 | US6238523 Decontamination apparatus |
| 05/29/2001 | US6238516 Washing cellulose |
| 05/23/2001 | EP1101859A1 Process for deiniking, decolouring, disinfecting and bleaching waste paper |
| 05/23/2001 | DE19948989A1 Mediatoren, Peroxidverbindungen und pH-Stabilisatoren enthaltende lagerstabile Formulierungen und deren Verwendung in enzymatischen Bleichsystemen sowie enzymatische 2-Komponenten-Bleichsysteme und deren Verwendung Mediators, peroxide compounds and pH stabilizers containing storage-stable formulations and their use in enzymatic bleaching systems, as well as enzymatic 2-component bleaching systems and their use |
| 05/23/2001 | DE10041765A1 Manufacture of timber from used paper for walls, involves disaggregating used paper, forming pulp slurry, adding resin and flocculant, performing flocculation, filtering slurry and removing water in cake by pressing |
| 05/22/2001 | US6235149 Acrylic acid/maleic acid copolymers as detackification agents for adhesives contained in secondary fiber |
| 05/16/2001 | EP0876534B1 Production of sanitary paper |
| 05/15/2001 | CA2210984C Method and composition for providing repulpable moisture vapor barrier coating for flexible packaging |
| 05/10/2001 | WO2001032715A1 Process for the production of organic products from lignocellulose containing biomass sources |
| 05/09/2001 | EP0778908B1 Thin mat washing of cellulosic pulp |
| 05/08/2001 | US6228630 Enzymes with xylanase activity from aspergillus aculeatus |
| 05/08/2001 | US6228212 Method of removing wax from cellulosic fiber used in a fiber suspension for a paper-making machine |
| 05/08/2001 | CA2135826C Process for removing inorganic components that form ash on ignition and oily waste from paper during recycling |
| 05/03/2001 | WO2001031066A1 Reaction method, reaction apparatus and enzyme |
| 05/02/2001 | EP1096062A1 Process to improve the homogenity and bleaching degree of paper pulp |
| 05/02/2001 | EP1095184A1 Method of producing lignocellulosic pulp from non-woody species |
| 05/01/2001 | US6225275 Activation of oxidoreductases for bleaching fabrics during washing |
| 04/26/2001 | WO2001029308A1 Fibers from plant seeds and use |
| 04/26/2001 | DE19917742C2 Verfahren zur Behandlung von optische Aufheller enthaltenden Papierfaserstoffsuspensionen A method for the treatment of optical brighteners paper pulp suspensions containing |
| 04/18/2001 | EP1092762A1 Storage stable compositions comprising mediators, peroxide compounds and pH stabilizers, and their use in enzymatic bleaching systems |
| 04/18/2001 | EP1075563A4 Method for removing wax from a pulp furnish |
| 04/18/2001 | CN1292052A Method for removing wax from pulp furnish |
| 04/17/2001 | US6217706 Mixing ammonium hydroxide and/or sodium bicarbonate with hydrogen peroxide and aqueous suspension of inked cellulosic fibrous material, dislodging ink by reaction at ink particle/cellulosic fiber interfaces, removing ink particles |
| 04/12/2001 | WO2001025536A1 Method for accelerated degradation of mulch paper and mulch paper |
| 04/12/2001 | CA2348721A1 Method for accelerated degradation of mulch paper and mulch paper to carry out said method |
| 04/11/2001 | EP1090176A1 Method for manufacturing a fibre mat, fibre mat and use of such fibre mat |
| 04/11/2001 | EP1064082A4 Contaminant dispersants useful in recycling of treated containers |
| 04/11/2001 | CN1291248A Calcium carbonate synthesis method and resulting product |
| 04/11/2001 | CN1291246A Modified cellulosic fibers and fiber webs containing these fibers |
| 04/11/2001 | CN1064420C Method for producing a delignified papermaking fiber from recycled, high lignin content, waste paper and product thereof |
| 04/10/2001 | US6214465 Floor absorbent granular product comprising kaokin clay and cellulose fibers |
| 04/05/2001 | WO2001023665A1 Processes and compositions for repulping paper |
| 04/04/2001 | EP1088937A1 Process for preparing high quality paper from vegetable residuals |
| 04/04/2001 | EP1088080A1 Cellulase producing actinomycetes, cellulase produced therefrom and method of producing same |
| 04/04/2001 | EP0788568B1 Use of monocomponent cellulase for removing inks, coatings, and toners from printed paper |
| 04/04/2001 | CN1290189A Contaminant dispersants useful in recycling of treated containers |
| 04/03/2001 | US6210526 Adding, hydrophobized synthetic or natural mineral to preclude dispersion in clear water or in alkaline or neutral fiber-free deinking formulation to treated paper pulp to cause microstickies to be absorbed by mineral and removed |
| 03/28/2001 | CA2283982A1 Processes and compositions for repulping paper |
| 03/27/2001 | US6207015 Process for recovering raw materials from paper industry mechanical waste sludge |
| 03/27/2001 | US6207009 High strength paper |
| 03/21/2001 | EP0754257B1 Method of enhancing biopulping efficacy |
| 03/20/2001 | CA2056889C A method of processing the wastewater-solids mixture that results from the production of paper and the use of this solids mixture |
| 03/14/2001 | EP1082486A1 Oxidase process for pulp and dye oxidation |
| 03/14/2001 | EP1082395A1 Liquid de-inking compositions based on polyalkoxylated terpenic compounds and their use for de-inking |
| 03/14/2001 | EP0862670B1 A soft, bulky absorbent paper containing chemithermomechanical pulp |
| 03/14/2001 | CN1287196A Warm water pulp-crushing process for pulping waste paper |
| 03/13/2001 | US6200797 Bacterial protein with xylanase activity |
| 03/08/2001 | WO2001016423A1 Pulping process for corn stover and other nonwood fibrous materials |
| 03/08/2001 | WO2000068396A3 Bacillus circulans xylanase mutants |
| 03/08/2001 | CA2383349A1 Pulping process for corn stover and other nonwood fibrous materials |
| 03/07/2001 | EP1080262A1 A process for removing contaminants from waste paper |
| 03/06/2001 | US6197564 Nucleotide sequence coding hydrolase; for adjusting viscosity of plant cell walls; for the degradation and separation of plant material; for food preparation; for beer brewing; for paper and pulp preparation; for preparation of animal feeds |
| 03/06/2001 | US6197153 Method for de-inking paper pulp from recycled paper |
| 03/01/2001 | WO2000047701A3 Corn fiber for the production of advanced chemicals and materials |
| 02/28/2001 | EP0866808B1 Methods and apparatus for the extraction of phytochemicals from fibrous plants |
| 02/28/2001 | CN1285854A Process of repulping wet strenlgth paper |
| 02/21/2001 | EP1076735A1 Method and apparatus for treatment of fiber suspension containing minerals, such as coated broke, in paper production |
| 02/20/2001 | US6190899 Cellulase producing actinomycetes, cellulase produced therefrom and method of producing same |
| 02/20/2001 | US6190503 Insoluble, only slightly swellable polymers which contain polymerized vinylamine units, and these polymers are used as adsorbents for treating water circulations in papermaking and for treating paper machine wastewaters |
| 02/14/2001 | EP1075563A1 Method for removing wax from a pulp furnish |
| 02/13/2001 | US6187577 Cellulase producing Actinomycetes cellulase produced therefrom and method of producing same |
| 02/13/2001 | US6187136 Process for increasing the charge on a lignocellulosic material |
| 02/13/2001 | US6187135 Process for making recycled paper having improving strength properties |
| 02/06/2001 | US6184014 Bacterial polyphenol oxidase from bacillus for use in oxidation of colored substances |
| 02/06/2001 | US6182478 Apparatus for cleaning a suspension, preferably a fiber mass suspension |
| 02/06/2001 | CA2026055C Use of anionic surfactant/dispersant blends for the deinking of groundwood newsprint |
| 01/30/2001 | US6180382 Xylanase derived from a bacillus species, expression vectors for such xylanase and other proteins, host organisms therefor and use thereof |
| 01/30/2001 | US6179959 Method of making kenaf pulp |
| 01/30/2001 | US6179957 Method for controlling deinking process using contact angle |
| 01/24/2001 | EP1070783A1 Process to optimize the dosage of fixing agent for coated broke pulp |
| 01/24/2001 | EP1070174A1 Eucalyptus biokraft pulping process |
| 01/24/2001 | CN1281143A Optimum determining method of adding electric charge change over agent into waste paper |
| 01/24/2001 | CN1281075A Stack board of waste paper pulp and its making technology |