| Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432) |
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| 01/17/2001 | EP1068523A2 Method for detecting growth stress in plants for monitoring textile fiber quality |
| 01/17/2001 | EP1068389A1 Method and apparatus for deinking paper |
| 01/17/2001 | EP1068388A1 Method for inhibiting the deposition of white pitch in paper production |
| 01/16/2001 | US6174412 A soft, bright and strong tissue paper product prepared from fibers consisting essentially of raw cotton linter fibers. |
| 01/16/2001 | US6174410 Process apparatus for recovering raw materials from paper mill effluents |
| 01/16/2001 | CA2044466C Deinking process |
| 01/10/2001 | EP0710214B1 The use of dialdehydes and acetals thereof for inhibiting decomposition of peroxide in the production and the treatment of recycled fiber pulp and other fiber pulp |
| 01/10/2001 | CN1279314A Method for producing lignin-removed papermaking fibers from waste paper containing high content of lignin |
| 01/09/2001 | US6171440 Process for repulping wet strength paper having cationic thermosetting resin |
| 01/04/2001 | DE19929919A1 Cleaning used paper fibers uses a chemical additive with a surface action before the high consistently material is dispersed into a suspension for separation of ink particles and stickies from the fibers |
| 01/03/2001 | EP1064082A1 Contaminant dispersants useful in recycling of treated containers |
| 12/14/2000 | WO2000075422A1 Method and apparatus for preparing paper pulp from used paper |
| 12/13/2000 | EP1058751A1 Cotton linter tissue products and method for preparing same |
| 12/13/2000 | EP0823949B1 Process and composition for deinking waste paper |
| 12/07/2000 | WO2000073574A1 Foam-controlling process |
| 12/07/2000 | WO2000073426A1 Isolation and activities of lignin depolymerases |
| 12/07/2000 | WO2000073216A1 Compositions of an anionic surfactant and a mineral cation used in aqueous medium |
| 12/07/2000 | CA2375030A1 Isolation and activities of lignin depolymerases |
| 12/07/2000 | CA2374900A1 Foam-controlling process |
| 12/06/2000 | EP1057926A1 Foam-controlling process |
| 12/06/2000 | EP1056902A1 Process for production of chemical pulp from herbaceous plants |
| 12/06/2000 | CN1059249C Method and apparatus for removal of ink and dirt by laser and regeneration of prints |
| 11/28/2000 | US6153413 Homogenizing cellulose produced in agitated culture, dehydrating and drying under tension, then homogenizing; for restoring properties even after it is once dried |
| 11/28/2000 | US6153300 Bleaching cellulose pulp having cleanliness which varies significantly over time using at least two different bleaching stages and bleaching chemicals |
| 11/28/2000 | US6153049 In papermaking |
| 11/21/2000 | US6150451 Polymer emulsion containing carboxylated butadiene-styrene copolymer particles |
| 11/21/2000 | CA2171681C Improved pulping process |
| 11/16/2000 | WO2000068494A1 Method for producing paper pulp, lignins, sugars and acetic acid by fractionation of lignocellulosic vegetable material in formic/acetic acid medium |
| 11/16/2000 | WO2000068396A2 Bacillus circulans xylanase mutants |
| 11/16/2000 | WO1999035491A3 Method for detecting growth and stress in plants and for monitoring textile fiber quality |
| 11/16/2000 | CA2373135A1 Novel thermostable alkaliphilic xylanase |
| 11/15/2000 | EP1051551A1 Method and apparatus for wetting fibrous material |
| 11/15/2000 | CN1273618A Method for processing straw into pulp and paper product therefrom |
| 11/14/2000 | US6146494 Modified cellulosic fibers and fibrous webs containing these fibers |
| 10/31/2000 | US6140095 Alkalitolerant xylanases |
| 10/31/2000 | CA2209790C Microfibrillated cellulose and method for preparing same from primary wall plant pulp, particularly sugar beet pulp |
| 10/26/2000 | DE19917742A1 Removal of optical brighteners from a paper fiber suspension induces a turbulent flow in the suspension at a controlled temperature to release the brightener for collection and removal |
| 10/25/2000 | EP1046744A1 Process for removing ink from recycled paper |
| 10/25/2000 | EP1046743A1 Method of removing wax from cellulosic fiber used in a fiber suspension for a paper-making machine |
| 10/25/2000 | EP1045935A1 Method for biologically obtaining cellulose fibre material from a vegetable material containing calcium peculate |
| 10/24/2000 | CA2093260C Method for producing a delignified papermaking fiber from recycled, high lignin content, waste paper and product thereof |
| 10/18/2000 | EP1044234A1 Process of repulping wet strength paper |
| 10/18/2000 | EP0906465B1 Deinking process |
| 10/18/2000 | CN1270545A Apparatus for cleaning a suspension, preferably a fiber mass suspension |
| 10/17/2000 | US6133474 Alkyl glyceryl ether sulfonate compositions |
| 10/17/2000 | US6132716 Thermostable xylanases from Microtetraspora flexuosa as a feed additive |
| 10/11/2000 | CN1269854A Polyammonium quaternary polymer for controlling anionic Trash and pitch deposition and treating coated broke |
| 10/04/2000 | CN1057026C Process and apparatus for recycling disposable diapers |
| 09/28/2000 | WO2000056867A1 An enzymatic treatment method |
| 09/28/2000 | CA2365106A1 An enzymatic treatment method |
| 09/27/2000 | EP1039020A1 Process for bleaching lignocellulosic pulp |
| 09/27/2000 | EP0751829B1 Process and apparatus for recycling disposable diapers |
| 09/27/2000 | EP0651785B1 ALKALOPHILIC -i(BACILLUS sp. AC13) AND PROTEASE, XYLANASE, CELLULASE OBTAINABLE THEREFROM |
| 09/27/2000 | CN1268179A Microbial swollenin protein, DNA sequences encoding such swollenins and method of producing such swoolenins |
| 09/26/2000 | US6124111 Method and an arrangement for measuring the amount/activity of catalase before or in connection with bleaching of preferably cellulose fibres included in a pulp suspension |
| 09/20/2000 | EP1036878A1 Method of liquefying paper, liquefied paper composition and method of manufacturing plastic molding from liquefied paper composition |
| 09/20/2000 | EP1036236A1 Pulp production method and apparatus |
| 09/20/2000 | EP1036152A1 Method for enhancing activity of cellulase in industrial applications by adjusting ionic strength |
| 09/19/2000 | US6120648 Apparatus for pulping and deinking |
| 09/19/2000 | CA2137325C Method for producing recycled materials for hygienic end uses |
| 09/14/2000 | WO2000053843A1 A process and an enzyme preparation with steryl esterase activity for controlling pitch during paper manufacture |
| 09/14/2000 | WO2000035588B1 Method and production plant for the manufacture of fibrous material |
| 09/13/2000 | EP1034280A2 Cellulase produced by actinomycetes and method of producing same |
| 09/12/2000 | US6117664 Endoglucanase variant with adjusted hydrogen bonding; for soil removing detergents; for fabric softners; for biopolishing textiles; for efficient draniage of paper pulp; for deinking; for plant degradation; for pollution control |
| 09/12/2000 | CA2175935C Treatment of waste paper |
| 09/08/2000 | WO2000052257A1 Multi-component system for the enzyme-catalysed oxidation of substrates and method for carrying out enzyme-catalysed oxidation |
| 09/06/2000 | EP1032686A2 Cellulase produced by actinomycetes and method of producing same |
| 09/05/2000 | US6113738 Adding plasticizer selected from adipic acid, dimethyl adipate, diethyl adipate, diisobutyl adipate and other esters of adipic acid; dispersing to obtain treated fiber; separating treated fiber from slurry containing wax; recovering fiber |
| 09/05/2000 | CA2067446C Process for deinking wastepaper |
| 08/30/2000 | EP1031657A1 A method for bleaching secondary fibres |
| 08/29/2000 | US6111009 Deinking processes polymers-in-water emulsion for use in deinking processes |
| 08/29/2000 | US6110323 Recycling the agricultural waste by hydrolysis and delignifying, forming an absorbent material |
| 08/23/2000 | EP0904448B1 Deinking process |
| 08/17/2000 | WO2000047701A2 Corn fiber for the production of advanced chemicals and materials |
| 08/15/2000 | US6103861 Strength resins for paper and repulpable wet and dry strength paper made therewith |
| 08/15/2000 | US6103294 Preservative for digestible food and beverage products |
| 08/15/2000 | US6103059 Process for delignification of a lignin containing pulp |
| 08/15/2000 | US6103056 Stripping ink from aqueous pulp slurry formed from wastepaper and surfactant while controlling interfacial potentials by controlling ph before or during flotation yields bulkier pulp sheets |
| 08/08/2000 | US6099688 Process for preparing mechanical pulp by treating the pulp with an enzyme having cellobiohydralase activity |
| 08/02/2000 | EP1023491A1 Floor absorbent granular product |
| 08/02/2000 | EP1023487A1 Process and device for treating waste paper without biocides, chlorine compounds, hydrogen peroxide and peracetic acid, recycled tissue paper with a total germ number of less than 1000 kbe/g and a surface germ number of less than 20 kbe/dm?2 |
| 07/26/2000 | EP1021613A1 Method for processing straw into pulp and paper product therefrom |
| 07/25/2000 | US6093282 Fines are separated with flotation treatment, the fines and adhesive starches are subjected to polysaccharide hydrolyase treatment; and long fiber portion is refined to improve flexibility; improved drainage, strength of base paper |
| 07/12/2000 | EP0946665B1 Paper compound material with repulp-resistant adhesive coating |
| 07/11/2000 | US6086714 Process for adjusting the alkalinity of pulp slurry in a broke pulper using carbon dioxide |
| 07/05/2000 | EP1015123A1 Apparatus for cleaning a suspension, preferably a fiber mass suspension |
| 07/05/2000 | EP0880614B1 Method for recovering fiber from printed wastepaper |
| 07/04/2000 | US6083733 Hydrolase enzymes from a thermophilic microorganism; for papermaking |
| 07/04/2000 | US6083582 Films and microfibers of cellulose |
| 06/29/2000 | WO2000014326B1 Method for biologically obtaining cellulose fibre material from a vegetable material containing calcium peculate |
| 06/29/2000 | DE19909546C1 Enzymatic oxidation system, e.g. for lignin oxidation, bleaching, chemical synthesis or waste water treatment, comprises a manganese oxidase, an oxidizing agent and manganese ions |
| 06/28/2000 | EP1013825A1 Method of making absorbent sheet from recycle furnish |
| 06/28/2000 | EP1012392A1 Polyammonium quaternary polymer for controlling anionic trash and pitch deposition and treating coated broke |
| 06/28/2000 | EP1012376A2 Oxidation and bleaching system with enzymatically produced oxidizing agents |
| 06/28/2000 | EP0956190A4 Apparatus for pulping and deinking |
| 06/28/2000 | EP0910475A4 Pulp decontamination apparatus and method of use |
| 06/27/2000 | US6080831 Water-dispersible polyisocyanates |
| 06/27/2000 | US6080567 Enzymes with xylanase activity from Aspergillus aculeatus |
| 06/22/2000 | WO2000035588A1 Method and production plant for the manufacture of fibrous material |
| 06/22/2000 | CA2355656A1 Method and production plant for the manufacture of fibrous material |