| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
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| 03/09/2005 | CN1192108C Purified myceliophthora laccase and nucleic acid encoding same |
| 03/09/2005 | CN1192039C Oxidized cellulose-containing fibrous materials and products made therefrom |
| 03/08/2005 | US6862819 System for producing dried singulated cellulose pulp fibers using a jet drier and injected steam |
| 03/03/2005 | WO2005019527A1 High hlb non-ionic surfactants for use as deposition control agents |
| 03/03/2005 | WO2005019526A2 System and method for controlling a processor including a digester utilizing time-based assessments |
| 03/03/2005 | US20050045291 Without using oxygen or other pressurized gas; maintaining brightness; reducing pollutant content of waste water |
| 03/03/2005 | US20050045290 Method for making chemically cross-linked cellulosic fiber in the sheet form |
| 03/03/2005 | US20050045289 Forming three dimensional, porous twisted structure without using crosslinking agent; low cost, uniform fluffing of slurry for paper and adsorbent material making |
| 03/03/2005 | US20050045288 Bleached, mechanical paper pulp and the production method therefor |
| 03/03/2005 | CA2536248A1 High hlb non-ionic surfactants for use as deposition control agents |
| 03/02/2005 | CN1587506A Method for single section bleaching bamboo/bagasse pulp |
| 03/02/2005 | CN1587505A High efficiency grass pulp washing and bleaching machine and its pulping process |
| 03/02/2005 | CN1587502A New process for producing alkaline hydrogen peroxide mechanical pulp by double scrwe extruding method |
| 03/02/2005 | CN1587500A Supersonic chemical pretreating method for bagasse for wood-plastic composite material |
| 03/01/2005 | US6861023 Pumping raw materials in digester; alkalinity solutions; forming fibers |
| 02/24/2005 | WO2004053228A3 Filler-fiber composite |
| 02/24/2005 | US20050039873 Preventing the deposition of pitch contaminant onto papermaking machines with a surfactant, selecting from polyoxyethylene glycol or ethylene oxide-propylene oxide copolymer |
| 02/23/2005 | EP0734469B1 Implementation of dissolved solids profiling |
| 02/23/2005 | CN2680713Y Integrated pulping device for oxygen delignification and bleaching |
| 02/23/2005 | CN1584201A Black liquid with washing graded cooking process production in ball and preparing method thereof |
| 02/23/2005 | CN1584199A Non-black liquid discharging pulping process and special boiler thereof |
| 02/17/2005 | US20050034825 Ozone bleaching of low consistency pulp |
| 02/17/2005 | US20050034824 System and method for controlling a processor including a digester utilizing time-based assessments |
| 02/16/2005 | CN2679213Y Spool of vacuum washing engine |
| 02/10/2005 | US20050028953 In bleaching plant; catalytic oxidation of pulp slurry, washing, stabilization |
| 02/10/2005 | US20050028952 Apparatus for making carboxylated pulp fibers |
| 02/10/2005 | US20050028292 Methods for making carboxylated cellulosic fibers |
| 02/09/2005 | EP1505199A1 Methods for making carboxylated pulp fibers |
| 02/09/2005 | EP1505198A1 Apparatus for making carboxylated pulp fibers |
| 02/09/2005 | EP1505197A1 Methods for making carboxylated cellulosic fibers |
| 02/09/2005 | CN2677420Y Screw pulp dewatering machine |
| 02/09/2005 | CN1188569C Paper pulp bleaching electrolysis process |
| 02/05/2005 | CA2475665A1 Methods for making carboxylated pulp fibers |
| 02/05/2005 | CA2475664A1 Apparatus for making carboxylated pulp fibers |
| 02/05/2005 | CA2475482A1 Methods for making carboxylated cellulosic fibers |
| 02/03/2005 | WO2005010273A1 Method of curling fiber and absorbent sheet containing same |
| 02/03/2005 | US20050022952 Method for producing cellulose derivatives |
| 02/03/2005 | US20050022951 Total chlorine free bleaching of arundo donax pulp |
| 02/03/2005 | US20050022415 System for making dried singulated crosslinked cellulose pulp fibers |
| 02/02/2005 | CN1575364A Method for manufacturing filler container chemical pulp |
| 02/02/2005 | CN1575363A Oxidizing enzymes in the manufacture of paper materials |
| 02/01/2005 | US6849156 Cationic fibers |
| 01/27/2005 | US20050019563 Using aqueous solution of glycoxal; wet strength; bulk density; superabsorbent material; diapers; adult incontinence product; feminine hygiene product; packaging material |
| 01/27/2005 | US20050016699 Using aqueous solution of glycoxal; wet strength; bulk density |
| 01/27/2005 | US20050016698 Glyoxal crosslinked cellulosic fibers having improved brightness and color |
| 01/26/2005 | CN2673920Y Pressure type pulp pressing machine |
| 01/26/2005 | CN1570268A Process for preparing bamboo grout cakes used for production of secondary cellulose acetate sheets |
| 01/20/2005 | US20050014669 Carboxylated cellulose formed via reacting hindered heterocyclic oxammonium salts and oxidizing with chlorine dioxide |
| 01/20/2005 | US20050012276 Seal at press rollers |
| 01/20/2005 | US20050011621 Activated fibers or particles having self-binding properties; contactig with oxidizer; press molding |
| 01/18/2005 | US6844066 Superabsorbent cellulosic fiber and method of making same |
| 01/18/2005 | CA2323437C Lyocell fibers, and compositions for making the same |
| 01/13/2005 | WO2005003448A1 Method and washpress for washing and dewatering of a fibre suspension |
| 01/13/2005 | US20050008765 Method for monitoring quality of paper web |
| 01/12/2005 | EP1029124B1 A process for improving the drainage of cellulosic pulps |
| 01/12/2005 | CN2670416Y Papermaking chemic producer |
| 01/12/2005 | CN1564785A Control of development of biofilms in industrial process water |
| 01/12/2005 | CN1563569A Method for making paper by using branches of mulberry as raw material |
| 01/12/2005 | CN1563567A Deinking Technique for news bogus paper through enzyme |
| 01/12/2005 | CN1563565A Method for selective degrading lignin in paper pulp |
| 01/12/2005 | CN1563563A Totally enclosed type method for pulping procedure in papermaking with zero discharged blac liquor |
| 01/11/2005 | US6841390 Method for sensing stickies |
| 01/11/2005 | US6841036 Process for the oxygen delignification of pulp in two stages with higher pressure in the second stage |
| 01/11/2005 | CA2332304C Peroxide, oxygen, and peroxide/oxygen brightening of chemical and mixed waste pulps |
| 01/11/2005 | CA2206897C Processes for reducing contamination of cellulosic liquors |
| 01/06/2005 | WO2005001198A1 Printing paper |
| 01/06/2005 | WO2005001196A1 Method for treating pulp in connection with the bleaching of chemical pulp |
| 01/06/2005 | WO2004083518A3 Cross-linked fiber in sheet form and method of making |
| 01/06/2005 | WO2004065690A3 Method for creating a fibrous substance suspension used for producing a tissue web or hygiene web |
| 01/06/2005 | US20050000669 Fiber webs; high density, softness |
| 01/06/2005 | US20050000666 Controlled pH and temperature; heating; papermaking ; high strength |
| 01/06/2005 | CA2541819A1 Printing paper |
| 01/06/2005 | CA2528536A1 Transcription factors |
| 01/05/2005 | EP1492924A2 White pitch deposit treatment |
| 01/05/2005 | CN2668677Y Novel pulp extruder |
| 01/05/2005 | CN1560358A Technology for making paper without sewage drainage and apparatus and adhesives |
| 01/05/2005 | CN1560357A Bleaching method of bagasse pulp |
| 01/04/2005 | US6837970 Wood pulp fiber morphology modifications through thermal drying |
| 01/04/2005 | US6837452 Flowable and meterable densified fiber flake |
| 01/04/2005 | CA2382180C High temperature peroxide bleaching of mechanical pulps |
| 01/04/2005 | CA2360751C Multicomponent system for enzyme-catalyzed oxidation of substrates and process for the enzyme-catalyzed oxidation |
| 12/30/2004 | US20040266728 Oxidizing cellulose by reacting in an aqueous system with hindered cyclic nitroxides as catalysts; papermaking |
| 12/30/2004 | US20040266644 Ammonium nitriles and the use thereof as hydrophobic bleaching activators |
| 12/29/2004 | WO2004113611A1 Method for controlling pitch and stickies deposition |
| 12/29/2004 | EP1490548A1 Method for the modification of cellulose fibres |
| 12/29/2004 | EP1489897A1 Compositions and composites of cellulosic and lignocellulosic materials and resins, and methods of making the same |
| 12/23/2004 | US20040256065 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 12/22/2004 | EP1487955A1 Ammonium nitriles and the use thereof as hydrophobic bleaching activators |
| 12/22/2004 | CN1181244C Method and apparatus for washing fibre pulp mixture |
| 12/21/2004 | US6833054 Method and apparatus for adjusting chemical dosage of pulp processing stage |
| 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 |
| 12/16/2004 | DE10324369A1 To clean a paper fiber suspension of stickies and the like, especially from used paper for recycling, a vegetable or animal oil is added to separate the particles by extraction |
| 12/15/2004 | EP0968328B1 Bleaching and delignifying cellulose using caroate/caro's acid and production of same |
| 12/15/2004 | CN1554826A Photochemical paper pulp bleaching method and device |
| 12/14/2004 | CA2172967C Method and device for mixing of a fluid into a pulp-suspension |
| 12/09/2004 | WO2004099492A3 Method for bleaching fibrous materials |
| 12/09/2004 | US20040244930 Method for manufacturing filler container chemical pulp |
| 12/08/2004 | EP1484375A1 Resin acid composition and use thereof |
| 12/08/2004 | EP1483442A2 Novel catalytic activities of oxidoreductases for oxidation and/or bleaching |