| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
|---|
| 07/04/2002 | WO2002052100A2 Alkaline extraction stages comprising xylanase |
| 07/04/2002 | WO2002051973A1 Liquid detergent and/or cleanser |
| 07/04/2002 | WO2002033164A3 Method for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials |
| 07/04/2002 | WO2000068396A9 Bacillus circulans xylanase mutants |
| 07/04/2002 | US20020084047 Treating the pulp with a hemicellulase, and chemically modifying the treated pulp, especially by etherification. |
| 07/04/2002 | US20020084046 Adding an enzymatic material at a storing stage of a papermaking process to modify the pulp. |
| 07/04/2002 | US20020084044 New process for producing low DP microcrystalline cellulose |
| 07/04/2002 | DE10064636A1 Flüssiges Wasch-und/oder Reinigungsmittel Liquid detergent and / or cleaning agent |
| 07/04/2002 | DE10064496A1 Schwarze Farbstoffmischungen von faserreaktiven Azofarbstoffen und ihre Verwendung zum Färben von hydroxy- und/oder carbonamidgruppenhaltigem Fasermaterial Black dye mixtures of fiber-reactive azo dyes and use thereof for dyeing hydroxy- and / or carboxamido-containing fiber material |
| 07/03/2002 | EP0900299B1 Compositions and methods for inhibiting deposits in pulp and papermaking systems |
| 07/03/2002 | CN2498194Y Dual net concentrated pulp washer |
| 07/03/2002 | CN2498193Y Pressure pulping box for net style pulp washer |
| 07/03/2002 | CN1356429A Process for treating intermediate waste papermaking water by use of waste |
| 07/02/2002 | US6413365 Reacting carbon dioxide and/or ozone gases with calcium oxide and/or calcium hydroxide; crystallization |
| 07/02/2002 | US6413362 Hammer milling to introduce twists, crimping or other deformations, forming high strength and low density wood used as tissue, distribution layers and filter papers |
| 07/02/2002 | CA2239855C Oxygen delignification of medium consistency pulp slurry |
| 07/02/2002 | CA2165839C Thermostable xylanase |
| 06/27/2002 | US20020081428 Molded bodies made from compositions having low degree of polymerization values |
| 06/27/2002 | US20020079071 Process for continuous cooking of pulp |
| 06/27/2002 | US20020079070 Process for continuous cooking of pulp |
| 06/26/2002 | EP1217124A2 High-bulk cellulosic fibers and process for making the same |
| 06/26/2002 | EP1216324A1 Replaceable wearing surface for a sealing arrangement |
| 06/26/2002 | EP1216323A1 Crosslinkable cellulosic fibrous product |
| 06/26/2002 | CN1355814A Oxidized cellulose-containing fibrous materials and products made therefrom |
| 06/26/2002 | CN1355767A Chemical composition and method |
| 06/26/2002 | CN1086708C Polymers, their prep aration and use |
| 06/25/2002 | US6409883 Complex fluid retention capacity greater by using a debonding agent in the aqueous suspension, extrusion; elevated energy input with sufficient working of the fibers; disposable absorbent articles |
| 06/25/2002 | US6409881 Metal-crosslinkable oxidized cellulose-containing fibrous materials and products made therefrom |
| 06/25/2002 | CA2202714C Process for increasing the degree of whiteness of paper fiber pulp |
| 06/25/2002 | CA2060073C Method for reducing slime formation in plants having a water cycle |
| 06/20/2002 | WO2002048451A1 Arrangement for feeding pulp to a bleaching tower |
| 06/20/2002 | WO2002048449A2 Washing machine for cellulose fibers |
| 06/20/2002 | US20020076556 Lyocell film made from cellulose having low degree of polymerization values |
| 06/20/2002 | US20020074097 Treating with aqueous solution of a debonder and a plasticizer |
| 06/20/2002 | CA2432045A1 Arrangement for feeding pulp to a bleaching tower |
| 06/19/2002 | CN1354811A Method and system for conveying shredded pulp to ozone reactor |
| 06/19/2002 | CN1354810A Absorbent articles and methods for producing the same |
| 06/19/2002 | CN1354645A Absorbent structure of chemically treated cellulose fibers |
| 06/19/2002 | CN1086431C Method for producing down with improved sorption ability, produced down and absorbing products containing down |
| 06/13/2002 | WO2002046522A2 Bleaching process |
| 06/13/2002 | WO2001098579A3 Methods to control organic contaminants in fiber suspensions |
| 06/13/2002 | US20020072598 Generating oxidized cellulose; obtain cellulose, pretreat in phosphoric acid, oxidize hydromethyl and hydroxymethylene groups, recover cellulose |
| 06/13/2002 | US20020069983 Pulp is bleached using potassium hydroxide; bleach concentrate is obtained from bleach filtrate, which is combined with ashes obtained from burning of lignin and organic matter recovered from pulp production to obtain fertilizer |
| 06/12/2002 | EP0889988B1 Aldehyde-modified cellulosic fibers for paper products having high initial wet strength |
| 06/12/2002 | CN1086215C Production of soft paper products from old newspaper |
| 06/12/2002 | CN1086189C Ultra-fine microcrystalline cellulose compositions and process for their manufacture |
| 06/11/2002 | US6402894 Sealing arrangement for pulp dewatering arrangement |
| 06/06/2002 | WO2002043838A2 Method for the treatment of waste gas from a cellulose plant |
| 06/06/2002 | US20020068130 By reversibly bonding, encapsulating, or physically entrapping the agent in the fiber such as cellulose to release the agent such as sodium carbonate which activates formation of a superabsorbent polymer |
| 06/06/2002 | US20020066545 Imaging the paper web with a thermal camera on a continual basis to detect defects in the web, and adjusting a treatment or manufacturing process based on the detected defects |
| 06/06/2002 | US20020066542 Transition metal complexes with polydentate ligands for enhancing the bleaching and delignifying effect of peroxo compounds |
| 06/06/2002 | US20020066541 Aldehyde donors for stabilizing peroxides in papermaking applications |
| 06/06/2002 | DE10110464A1 Verfahren zur Reinigung von Abgas aus einer Zellstofffabrik A method for purifying exhaust from a pulp mill |
| 06/05/2002 | CN1352336A Method for producing cotton pulp big using lateral pipe continous steaming and bleaching process |
| 06/04/2002 | US6398908 Acid treatment reduces unwanted metal ions; magnesium stabilizing agent added at reduced ph prevents it's precipitation |
| 05/30/2002 | US20020064654 High hemicellulose content of at least 5%, a low lignin content as measured by a kappa number less than 2.0; enhanced dye-binding properties and a reduced tendency to fibrillate. |
| 05/29/2002 | CN1351686A Process for producing cellulose pulp and fertiliser containing potassium |
| 05/29/2002 | CN1351211A Reducing and bleaching composition for pulp from decoloured waste paper and its bleaching method |
| 05/29/2002 | CN1085756C Process for delignification and bleaching of chemical paper pulp |
| 05/29/2002 | CA2363939A1 Method to improve kraft pulp brightness and bleachability and reduce bleaching effluent discharge |
| 05/28/2002 | US6395132 Paper pulp |
| 05/23/2002 | WO2002040773A1 Method and apparatus for treating pulp with filler |
| 05/23/2002 | WO2001094692A3 Aldehyde donors for stabilizing peroxides in papermaking applications |
| 05/23/2002 | US20020060382 Contacting cellulose and hemicellulose with a reducing agent and reducing the copper number |
| 05/23/2002 | US20020059998 Methods to control organic contaminants in fibers |
| 05/21/2002 | US6391152 Process for the oxygen delignification of pulp in two stages with higher pressure in the second stage |
| 05/16/2002 | WO2002038857A1 Method of treating cellulose fibres and products obtained thereby |
| 05/16/2002 | US20020056534 Light-stable lignocellulosic materials and their production |
| 05/16/2002 | US20020056533 Method of treating chemical cellulose pulp |
| 05/16/2002 | US20020056532 At least one of wires in dewatering section travels along convex path arranged so as to make dewatering more efficient at forward end of dewatering section than at tail end thereof |
| 05/16/2002 | US20020056531 Method for the carrying out of a flotation, bleach and/or dispersion process serving for the manufacture of fiber or paper |
| 05/15/2002 | EP1205598A1 Methods of treating cellulose fibres and products obtained thereby |
| 05/15/2002 | EP1205597A1 Process for continuous cooking of pulp |
| 05/15/2002 | CN2491482Y Efficiency multiple variable screw extruder |
| 05/15/2002 | CN2491481Y Water sucking box of long-net washing engine |
| 05/15/2002 | CN1349577A Process for production of paper materials with improved wet strength |
| 05/14/2002 | US6387344 Producing chlorine dioxide from a storate stable transportable mixture of alkali metal chlorate, hydrogen peroxide, at least one of a protective colloid, a radical scavenger or a phosphonic acid based complexing agent |
| 05/14/2002 | US6387212 Process for obtaining fibers integral with calcium carbonate particles |
| 05/14/2002 | US6387210 Method of making sanitary paper product from coarse fibers |
| 05/14/2002 | CA2031556C Method for effectively breaking up latex-coated paper during pulping to decrease the potential for white pitch deposition |
| 05/10/2002 | WO2002036877A1 Process for producing low dp microcrystalline cellulose |
| 05/10/2002 | WO2002036875A1 Process for producing microcrystalline cellulose with a desired dp |
| 05/10/2002 | WO2002025007A3 Light-stable lignocellulosic materials and their production_____ |
| 05/10/2002 | WO2001083881A3 Peroxide bleaching of wood pulp |
| 05/10/2002 | CA2427397A1 Process for producing low dp microcrystalline cellulose |
| 05/08/2002 | EP1203841A1 Process for continuous cooking of pulp |
| 05/03/2002 | CA2357393A1 Process for continuous cooking of pulp |
| 05/02/2002 | WO2002034999A1 Method and apparatus for washing a fibre suspension |
| 05/01/2002 | CN1347471A Fibrous structures including fiber bundle and debonding agent |
| 05/01/2002 | CN1347299A Absorbent articles including fibrous nits and free flowing particles |
| 04/30/2002 | US6380142 Storage-stable formulations comprising mediators, peroxide compounds and pH stabilizers and their use in enzymatic bleaching systems |
| 04/30/2002 | US6379948 Microbe SKB-1152 strain, and method of bleaching pulp therewith |
| 04/30/2002 | US6379494 Method of making carboxylated cellulose fibers and products of the method |
| 04/30/2002 | CA2211223C Method of pretreating pulp to be bleached with peroxide |
| 04/25/2002 | WO2002033164A2 Method for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials |
| 04/24/2002 | EP1199402A2 Process for delignifying and/or bleaching fibrous material |
| 04/24/2002 | EP1198411A1 Chemical composition and method |
| 04/24/2002 | EP0960235B1 Oxygen delignification process of pulp |
| 04/24/2002 | CN1346415A Crosslinkable cellulosic fibrous product |
| 04/23/2002 | US6375797 Treating chemical pulp in fast alkaline, neutral, or acidic peroxide step to reduce kappa number, bleaching pulp further in acidic bleaching step in bleaching tower |