| Patents for D21C 1 - Pretreatment of the finely-divided materials before digesting (1,872) |
|---|
| 03/02/2005 | CN1587506A Method for single section bleaching bamboo/bagasse pulp |
| 03/02/2005 | CN1587504A Bamboo fiber processing process |
| 03/02/2005 | CN1587500A Supersonic chemical pretreating method for bagasse for wood-plastic composite material |
| 02/24/2005 | US20050042250 Thermally modified microbial-derived cellulose for in vivo implantation |
| 02/23/2005 | CN1584201A Black liquid with washing graded cooking process production in ball and preparing method thereof |
| 02/17/2005 | US20050034823 Removal of inorganic elements from wood chips |
| 02/04/2005 | CA2437616A1 Manufacturing of nano-fibrils from natural fibres, agro based fibres and root fibres |
| 02/03/2005 | US20050022952 Method for producing cellulose derivatives |
| 01/26/2005 | CN1570269A Method for disrupting pulping |
| 01/26/2005 | CN1570268A Process for preparing bamboo grout cakes used for production of secondary cellulose acetate sheets |
| 01/20/2005 | WO2005004812A2 Gelled starch compositions and methods of making gelled starch compositions |
| 01/20/2005 | CA2530534A1 Gelled starch compositions and methods of making gelled starch compositions |
| 01/19/2005 | CN1568246A Device and method for vacuum impregnation |
| 01/12/2005 | CN1563563A Totally enclosed type method for pulping procedure in papermaking with zero discharged blac liquor |
| 01/12/2005 | CN1184374C Production technology of pure natural antibacterial bamboo paste |
| 01/11/2005 | US6841042 Feeding comminuted fibrous material using high pressure screw and centrifugal pumps |
| 01/04/2005 | US6837971 Device and method of using explosive forces in a contained liquid environment |
| 01/04/2005 | CA2265872C Method and apparatus for pulping with controlled heating to improve delignification and pulp strength |
| 12/29/2004 | EP1490548A1 Method for the modification of cellulose fibres |
| 12/23/2004 | US20040256065 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 12/22/2004 | EP1488037A1 Method for adjusting the fibrous properties of 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 |
| 12/15/2004 | CN1554824A Artificial plate wooden sheet no-bridge preheating bunker and anti-blocking method |
| 12/09/2004 | WO2004106624A1 Method for producing pulp and lignin |
| 12/09/2004 | US20040244925 Acid catalyst hydrolysis of wood chips; recyclization of catalyst |
| 12/03/2004 | CA2452145A1 Method for producing pulp and lignin |
| 12/02/2004 | US20040238134 Microwave pre-treatment of logs for use in making paper and other wood products |
| 11/25/2004 | US20040234692 Device and method for vacuum impregnation |
| 11/23/2004 | US6822183 Method of selecting wood for chemical pulping |
| 11/18/2004 | US20040226670 Top separator for gas phase and hydraulic phase continuous digesters and method for converting digester |
| 11/04/2004 | WO2004094624A1 Isolation and use of decay fungi |
| 11/04/2004 | US20040216854 Arundo donax composite panel |
| 11/02/2004 | CA2150381C Viscose production process |
| 10/28/2004 | WO2004092478A1 Impregnation of chips with an acid liquid prior to a sulphate pulping process |
| 10/28/2004 | WO2004092477A1 Steam treatment of chips with the addition of an acid liquid |
| 10/12/2004 | CA2297980C Continuous cooking with cool impregnation and dom control |
| 09/22/2004 | EP1458927A1 Pretreatment of chips with white liquor prior to a treatment with black liquor |
| 09/22/2004 | EP1458926A1 Method and arrangement for impregnating chips |
| 09/22/2004 | EP1161592B1 Process for oxygen pulping of lignocellulosic material and recovery of pulping chemicals |
| 09/01/2004 | EP1451405A1 Removal of inorganic elements from wood chips |
| 08/26/2004 | US20040163780 Culturing suspension of microorganisms; fermentation; boiling, pulping, screening; recycling waste straws; papermaking |
| 08/25/2004 | EP1448846A1 Microwave pre-treatment of logs for use in making paper and other wood products |
| 08/12/2004 | US20040154762 Eucalyptus biomechanical pulping process |
| 08/11/2004 | CN1161212C Bamboo pulp denatured productive tehcnology |
| 08/03/2004 | US6770168 Process for oxygen pulping of lignocellulosic material and recorvery of pulping chemicals |
| 07/22/2004 | US20040140068 Feeding arrangement for feeding of chips to chip bins |
| 07/20/2004 | CA2174874C Pretreatment of chips before cooking |
| 07/13/2004 | US6761798 Method for forming an Arundo donax paper product |
| 07/07/2004 | EP1434674A1 Device and method for vacuum impregnation |
| 06/22/2004 | US6752904 Process for removal of lignin from lignocellulosic material |
| 06/17/2004 | WO2004050985A1 Removal of pitch from wood chips |
| 06/17/2004 | WO2004050983A1 Method and system for treatment of wood chips |
| 06/16/2004 | EP1402108A4 Method for producing pulp |
| 06/03/2004 | US20040104003 Eucalyptus biokraft pulping process |
| 05/21/2004 | CA2783568A1 Apparatus, system and method for treating waste material |
| 05/13/2004 | US20040089431 Method for alkaline batch cooking of fiber material |
| 05/13/2004 | US20040089430 Continuous production of pulp from wood chips; preheating chips; impregnating with liquor; high speed heating; cooling, pulping |
| 04/13/2004 | US6719880 Process for producing paper and absorbent products of increased strength |
| 03/31/2004 | EP1402108A1 Method for producing pulp |
| 03/25/2004 | US20040058420 Method for producing cellulose derivatives |
| 03/25/2004 | US20040055717 Method of selecting wood for mechanical pulping |
| 03/18/2004 | WO2004022842A1 A method of producing mechanical pulp and the mechanical pulp thus produced |
| 03/18/2004 | WO2004022838A1 Method of the electric pulse treatment of fibrous materials |
| 03/18/2004 | CA2497904A1 A method of producing mechanical pulp and the mechanical pulp thus produced |
| 02/24/2004 | US6695950 Using selected oxidation conditions to generate aldehyde using a nitroxyl radical mediated oxidation with a limited amount of oxidant |
| 02/19/2004 | WO2004015195A1 Method of deresinating pulp using alkyl alcohol alkoxylate surfactants |
| 02/12/2004 | WO2004013408A1 Method for decomposing waste wood chips |
| 02/12/2004 | DE10234833A1 Verfahren zum Aufschluss von Altholz Procedures for digestion of waste wood |
| 02/10/2004 | CA2266987C Method and system for feeding comminuted fibrous material |
| 01/29/2004 | US20040016526 Heating wood chips in an aqueous alkaline medium in the presence of an effective deresinating amount of an alkyl alcohol alkoxylate |
| 12/31/2003 | WO2003013810A9 Device and method for vacuum impregnation |
| 12/24/2003 | WO2003106765A1 Method and arrangement for impregnating chips |
| 11/27/2003 | WO2003013810A8 Device and method for vacuum impregnation |
| 11/26/2003 | EP1190137B1 Method for separating lignocellulose-containing biomass |
| 11/26/2003 | EP0981639B1 Method for producing cellulose derivatives |
| 11/12/2003 | EP1360482A1 Method of selecting wood for mechanical pulping |
| 11/05/2003 | EP0896648B1 Hydrogen sulphide pretreatment of lignocellulosic material in continuous pulping processes |
| 11/04/2003 | US6641699 Chemical wood pulping process with reduced pitch and VOC emissions |
| 10/16/2003 | US20030192660 Mass of cellulosic fibers produced from wood |
| 10/15/2003 | EP1095184B1 Method of producing lignocellulosic pulp from non-woody species |
| 10/14/2003 | CA2213946C Handling fibrous material used to produce cellulose pulp |
| 10/02/2003 | WO2003080924A1 Method for the modification of cellulose fibres |
| 10/02/2003 | WO2003080922A1 Method for adjusting the fibrous properties of pulp |
| 10/02/2003 | CA2478363A1 Method for adjusting the fibrous properties of pulp |
| 09/24/2003 | EP1346103A1 Method for alkaline cooking of fiber material |
| 09/18/2003 | WO2002014599A9 Steaming process |
| 09/18/2003 | US20030173047 Feeding comminuted fibrous material using high pressure screw and centrifugal pumps |
| 09/16/2003 | US6620292 Cellulose production from lignocellulosic biomass |
| 09/03/2003 | EP1339913A1 Method for alkaline batch cooking of fiber material |
| 09/02/2003 | US6613192 Process for producing biokraft pulp from eucalyptus chips |
| 07/30/2003 | CN1116473C Grass pulp without pollution and method for reclaiming its by product |
| 07/23/2003 | EP1328679A1 Cellulose production from lignocellulosic biomass |
| 07/17/2003 | WO2003057979A1 Pretreatment of chips with white liquor prior to a treatment with black liquor |
| 07/17/2003 | CA2805007A1 Transgenic plants expressing civps or intein modified proteins and related method |
| 06/25/2003 | EP1320640A1 Steaming process |
| 06/10/2003 | US6576084 Method of pretreating pulp with yield or strength-enhancing additive |
| 06/05/2003 | WO2003046276A1 Removal of inorganic elements from wood chips |
| 05/27/2003 | US6569289 Cellulose slurry treating systems for adding AQ to a cellulose slurry in the substantial absence of alkali |
| 05/27/2003 | US6569285 Treating the lignocellulose containing material prior to a chemical pulping with chlorine dioxide a delignifying gas |