| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 04/22/2003 | US6551463 Integrated system and method for purifying water, producing pulp and paper, and improving soil quality |
| 04/17/2003 | WO2003031717A1 Method of separating colouring agents, particularly printing ink,from recycled fibre material |
| 04/17/2003 | WO2003018906A3 Equipment for preparation of paper stock |
| 04/17/2003 | US20030070779 Harvesting and drying a grass plant, cutting, compacting and transporting to pulp mill and power factory |
| 04/17/2003 | CA2462813A1 Method of separating colouring agents, particularly printing ink,from recycled fibre material |
| 04/16/2003 | CN2545245Y Pulper |
| 04/10/2003 | WO2003028906A1 Screen |
| 04/09/2003 | EP1299459A1 Method and device for the production of cellulose particles |
| 04/09/2003 | CN1409783A Method for reducing and/or avoiding build up of wood components |
| 04/09/2003 | CN1408520A Thread using bamboo skin and its producing method |
| 04/03/2003 | DE20300226U1 Material break up device, especially for compressed bales of e.g. film material, comprises conveyor and slowly rotating drum |
| 04/02/2003 | CN1407172A Paper pulp production and system device with non-wood as raw materials |
| 03/27/2003 | WO2003025279A1 Method and apparatus for producing fibre pulp and fuel out of municipal waste |
| 03/27/2003 | WO2002070063A3 Method and apparatus for the generation of ultrasonic energy fields within circular structures containing a liquid |
| 03/27/2003 | US20030056909 Test method for determining bleed-throughs in old corrugated container fiber pulp |
| 03/27/2003 | US20030056484 Yarn and cloths made mainly from bamboo sheaths and methods for manufacturing the same |
| 03/27/2003 | US20030056306 Installation for cleaning wood-containing material |
| 03/27/2003 | CA2460821A1 Method and apparatus for producing fibre pulp and fuel out of municipal waste |
| 03/26/2003 | EP1295650A2 Plant for cleaning wood containing material |
| 03/26/2003 | EP1115667B1 Improvements in or relating to glass fibre |
| 03/25/2003 | CA2258216C Pulp decontamination apparatus and method of use |
| 03/20/2003 | WO2002040766A3 Method of recycling bonded fibrous materials and synthetic fibers and fiber-like materials produced thereof |
| 03/20/2003 | US20030051842 Water content of 3 wt % or less, the average fiber diameter of 5 to 300 mu m and the average fiber length of 0.1 to 70 mm is incorporated into 5 to 60 wt % of titanium oxide. |
| 03/20/2003 | US20030051833 Photocatalytic pulp composition, photocatalytic pulp foam using said photocatalytic pulp composition, molded photocatalytic pulp using said photocatalytic pulp composition and molded photocatalytic pulp foam using said photocatalytic pulp foam as well as process for producing said photocatalytic pulp composition, said photocatalytic pulp foam, said molded photocatalytic pulp and said molded photocatalytic pulp foam and apparatus for producing said photocatalytic pulp composition |
| 03/19/2003 | EP1292393A1 Refining element for a refining disc |
| 03/13/2003 | WO2002025014A1 Processed board-type products made of non-wooden fibers |
| 03/13/2003 | CA2422428A1 Processed board-type products made of non-wooden fibers |
| 03/12/2003 | EP1291092A2 Method and device for removing cardboard from a wastepaper mixture |
| 03/12/2003 | EP1289683A2 Method for processing waste and waste processing plant |
| 03/12/2003 | EP1289664A2 Method and system for utilising waste |
| 03/12/2003 | EP1100992B1 Method and device for sorting paper mixtures |
| 03/06/2003 | WO2003018906A2 Equipment for preparation of paper stock |
| 03/05/2003 | EP1287201A1 A process for controlling microbial growth |
| 03/05/2003 | CN2538834Y Device for dissociation of plant fibre |
| 02/27/2003 | WO2003016434A2 Method for depleting carbon dioxide and for extracting energy |
| 02/26/2003 | EP1285989A1 Process for circulating the suspension in a pulper and pulper for carrying out the process |
| 02/26/2003 | EP1102884B1 Coarse dirt collector for removing coarse material from a pulper and corresponding method |
| 02/26/2003 | EP1023487B1 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/dm2 |
| 02/26/2003 | EP0677123B1 Deinking of printed paper by agglomeration process |
| 02/25/2003 | US6524442 Fiberizing a bale of pulp into dry fluff and metering the dry fluff to an airlaid process, especially for making disposable absorbent articles. |
| 02/20/2003 | WO2003014467A2 Production of pulp from cellulosic fibrous raw materials and recovery of chemicals and energy from pulp liquors |
| 02/20/2003 | CA2455187A1 Paper plant - method and apparatus for producing pulp from cellulosic fibrous raw materials and recovering chemicals and energy from pulp liquors |
| 02/13/2003 | WO2003012195A1 Twin headbox for super reinforced web in paper manufacturing |
| 02/13/2003 | US20030029589 Total chlorine free bleaching of Arundo donax pulp |
| 02/13/2003 | US20030029584 Process for guiding a suspension in a paper stock pulper and a paper stock pulper for conducting the process |
| 02/12/2003 | EP1283297A1 Paper pulper |
| 02/12/2003 | EP1282740A1 Method and device for the production of a recycled paper mixture |
| 02/12/2003 | CN1396045A Process for preparing material from wooden core or skin fibres of plant and its application |
| 02/06/2003 | WO2003010371A2 Method and device for classifying valuable material comprising at least one fibrous fraction |
| 02/06/2003 | US20030024614 Refining element for a refining disc |
| 01/30/2003 | US20030019962 Rotor pocket with a radially inwards facing opening for steam which can be put in communication with the outlet for steam, at least once for every revolution during the rotation of the rotor |
| 01/30/2003 | US20030019594 Grass fiber pulp has lighter color than the pulp produced from woods, only need a smaller amount of chemical bleach be added to bleach the pulp to a desired whiteness; papermaking; high strength fibers |
| 01/29/2003 | EP1015683B1 A pulping apparatus |
| 01/28/2003 | CA2139426C Tension bar screen |
| 01/23/2003 | WO2003006187A1 Used paper diaper processing method and used paper diaper processing device |
| 01/23/2003 | WO2002070816A3 Electrical field apparatus and methods for fluid for decontamination and other purposes |
| 01/23/2003 | US20030015610 In a paper, cardboard or coating machine, comprising: diluting the dry broke to a consistency of between about 15 to 60%; and slushing the dry broke with shear forces sufficient to crush filler particles in the dry broke. |
| 01/23/2003 | US20030015305 Raw material for printing paper, a method for producing said raw material and a printing paper |
| 01/23/2003 | US20030015283 Compressed water-hyacinth fiber board and method of manufacture |
| 01/22/2003 | EP1277878A1 Process for treating dry broke |
| 01/22/2003 | EP1015682B1 A method for the control of a groundwood pulping process |
| 01/22/2003 | CN1392309A Closed and combined FGSB wheat (rice) straw material preparing system |
| 01/21/2003 | US6508422 Pulper for a fiber stock preparation system |
| 01/21/2003 | CA2394228A1 Process for preparing dry broke |
| 01/21/2003 | CA2066336C Atmospheric pre-steaming chip bin vacuum and pressure relief device |
| 01/15/2003 | EP1275770A2 Device for separating fibrous material and method for separating light material |
| 01/14/2003 | CA2196202C Kneader for paper stuff |
| 01/13/2003 | CA2380510A1 Method of disposal of security documents |
| 01/09/2003 | US20030006016 Refining wood raw material, and screening in a plurality of stages into regect and accept portions to form a ready made stock having a freeness value of 30-70 ml at a consistency of >/= 10% |
| 01/08/2003 | EP0961851B1 Process for producing fibrous materials with improved properties |
| 01/08/2003 | CN1389625A Method for making toilet paper from recovered newspaper |
| 01/08/2003 | CN1389623A Paper pulp-making thermal jetting and bursting process and jetting and bursting cylinder |
| 01/08/2003 | CN1098389C Pollution-less low-pressure steam decrepitation process of making straw pulp |
| 01/03/2003 | WO2003000983A1 Total chlorine free bleaching of arundo donax pulp |
| 01/03/2003 | WO2003000982A1 Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) |
| 01/03/2003 | CA2451155A1 Method of producing bleached thermomechanical pulp (tmp) or bleached chemithermomechanical pulp (ctmp) |
| 01/02/2003 | EP1270804A2 Method for removing impurities from an aqueous paper fiber suspension |
| 01/02/2003 | DE10125978C1 Flotation of a used paper fiber suspension, to separate impurities, takes part-flows from at least one flotation stage to be returned for flotation, to maintain a constant clean fiber suspension quality |
| 01/02/2003 | DE10125977C1 Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension A method for removing anionic trash from an aqueous paper fiber suspension |
| 01/01/2003 | CN1388287A Chemical treatment and hot pulping process of wood pulp and dreg pulp with mechanical mill and stone mill |
| 01/01/2003 | CN1097656C Paper floc and its use in afforestation and building field |
| 12/31/2002 | US6499682 Refining elements |
| 12/24/2002 | CA2041732C Apparatus for the treatment of milling products |
| 12/19/2002 | US20020189021 Refining a wood chips with a bleaching liquor of hydrogen peroxidem, magnesium hydroxide and sodium carbonate, holding at 85-160 degrees c for 2-180 minutes to improve brightness |
| 12/18/2002 | EP1266994A1 High temperature peroxide bleaching of mechanical pulps |
| 12/18/2002 | EP1266078A1 Raw material for printing paper, method to produce it and printing paper |
| 12/18/2002 | EP1266072A1 Raw material for printing paper, method to produce it and printing paper |
| 12/18/2002 | EP1266071A1 Apparatus and method for treating milling products |
| 12/18/2002 | CN1385287A Bamboo pulp denatured productive technology |
| 12/18/2002 | CN1096525C Complete set equipment for producing and treating wood fibres |
| 12/17/2002 | US6494994 Pulp heating apparatus |
| 12/12/2002 | WO2002099183A1 Eucalyptus biomechanical pulping process |
| 12/12/2002 | US20020187307 Cleaning sheet for printer cylinders, and method for producing it |
| 12/12/2002 | DE10125979A1 Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension A method for removing anionic trash from an aqueous paper fiber suspension |
| 12/11/2002 | EP1264043A1 Refiner force sensor |
| 12/11/2002 | EP1264038A2 Pulping process |
| 12/05/2002 | US20020179752 Fiber recovery system |
| 12/04/2002 | EP1262593A1 Process for removing impurities from an aqueous fibrous material suspension |
| 12/04/2002 | EP1261770A1 Method and device for adjusting the whiteness degree of a bulk material consisting of comminuted paper fractions |
| 12/04/2002 | CN1382866A Efficient wet process for pretreating raw material |