| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 01/20/2007 | CA2552176A1 Used paper processing apparatus |
| 01/17/2007 | CN1898034A Method and device for collecting base paper for gypsum plaster board |
| 01/16/2007 | US7163604 Defibered batch of waste paper is separated into coarse reject and fine fractions; initial fiber suspension is pumped through rotary screen; purification; waste recycling |
| 01/16/2007 | US7163334 Method and apparatus for mixing fibers |
| 01/09/2007 | CA2335140C Coarse dirt collector for removing coarse material from a pulper and corresponding method |
| 01/09/2007 | CA2144025C Process for deinking pulp and device for applying said process |
| 01/03/2007 | CN2853874Y Pneumatic explosion blowout chamber |
| 01/03/2007 | CN2853873Y Pulper |
| 01/03/2007 | CN1890428A Process for increasing the refiner production rate and/or decreasing the specific energy of pulping wood |
| 01/02/2007 | CA2279355C Method to obtain wood with weak fibre connections |
| 01/02/2007 | CA2222905C Method and apparatus for mechanical defibration of wood |
| 12/28/2006 | WO2006136656A1 Method of treatment of pulp useful for papermaking |
| 12/27/2006 | CN1886551A Apparatus for use in recycling paper material |
| 12/27/2006 | CN1292123C Wet process for pretreating raw material |
| 12/21/2006 | US20060283992 Waste pulping system |
| 12/20/2006 | CN2848917Y Medium and high concentration hydraulic pulp kneader rotator |
| 12/20/2006 | CN1290621C Apparatus for separating solid from liquid through floatation |
| 12/14/2006 | DE102005026108A1 Stofflöser zur Zerkleinerung und Suspendierung von Papierstoff Pulper for comminuting and suspending paper stock |
| 12/13/2006 | EP1731663A1 Pulper for disintegration and suspension of paper pulp |
| 12/13/2006 | EP1731662A1 Process and apparatus for reuse of waste paper |
| 12/13/2006 | CN1289752C Method of separating colouring agents from recycled fibre material |
| 12/07/2006 | WO2006128960A1 Method and apparatus for mechanical defibration of wood |
| 12/07/2006 | WO2006128950A1 Process for producing mechanical pulp suitable for paper or cardboard making |
| 12/07/2006 | DE10236123B4 Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension A method for removing anionic trash from an aqueous paper fiber suspension |
| 12/07/2006 | CA2608207A1 Method and apparatus for mechanical defibration of wood |
| 12/07/2006 | CA2607178A1 Process for producing mechanical pulp suitable for paper or cardboard making |
| 12/06/2006 | EP1728918A2 Proces for removing impurities from an aqueous fibrous suspension |
| 12/06/2006 | EP1728917A2 Method and system for energy savings in TMP by high temperature LC/MC refining of pulp |
| 12/06/2006 | EP1727935A1 Device and method for reducing vapour loss in a closed system |
| 12/06/2006 | CN2844192Y Cotton-stalk roller |
| 12/06/2006 | CN1875145A Method for regulating whiteness for removal of printing ink in deinking installations and deinking installation comprising a flotation cell for removal of printing ink |
| 12/06/2006 | CN1288299C Wood pulp crushing machine |
| 12/03/2006 | CA2549576A1 Method and apparatus for estimating relative proportion of wood chips species to be fed to a process for producing pulp |
| 11/30/2006 | US20060267228 Reuse process of plastic material and paper rejected in recycling and its resultant product |
| 11/30/2006 | DE102005045469A1 Verfahren zum Gewinnen von Fasern aus einer Fasern enthaltenden Mischung A method of extracting fibers from a fiber-containing mixture |
| 11/29/2006 | EP1726644A1 Cellulase variants |
| 11/29/2006 | EP1726366A1 Device for the flotation of a liquid |
| 11/29/2006 | CN2841748Y Bagasse pith-removing machine |
| 11/29/2006 | CN1287044C Bamboo fibre and method for carbonizing bamboo fibre |
| 11/23/2006 | WO2006122538A2 Pulper for recycling a batch and method for extracting fibers from a mixture containing fibers |
| 11/22/2006 | EP1723281A1 Use of a particulate material derived from mammalian hair in the preparation of paper or paperboard products |
| 11/22/2006 | CN2839339Y Multifunction grass crusher |
| 11/22/2006 | CN1285774C Method of producing fiber from corn straw |
| 11/21/2006 | US7138263 Endoglucanase enzyme NCE5 and cellulase preparations containing the same |
| 11/16/2006 | US20060254732 System and method for removing foreign particles from an aqueous fibrous suspension |
| 11/16/2006 | US20060254731 Recycling of lignocellulose based board materials |
| 11/15/2006 | EP1497494B8 Pulpstone surface treating arrangement |
| 11/15/2006 | EP1490546B1 Sluice feeder |
| 11/15/2006 | CN2837354Y Cotton stalk cutting and crushing machine |
| 11/15/2006 | CN1863600A Refining element |
| 11/14/2006 | US7134859 Nits separator |
| 11/14/2006 | CA2333640C Pulper |
| 11/09/2006 | DE102005017943A1 Apparatus for sorting bulk material, especially paper board from waste paper, has a control to operate actuators which shut down operation on a limit being reached |
| 11/08/2006 | CN1859978A Refining surface and a blade segment for a refiner |
| 11/02/2006 | US20060243403 Microwave pretreatment of logs for use in making paper and other wood products |
| 11/01/2006 | CN2832883Y Environment-friendly fiber apparatus |
| 11/01/2006 | CN1856616A Chemical activation and refining of southern pine kraft fibers |
| 11/01/2006 | CN1854388A The production method and pulp maked bamboos |
| 10/31/2006 | CA2311532C Refining elements |
| 10/26/2006 | WO2006112769A1 Disc housing |
| 10/26/2006 | WO2006111604A1 Method for separating the main components of lignocellulosic materials |
| 10/26/2006 | CA2604639A1 Disc housing |
| 10/26/2006 | CA2603645A1 Method for separating the main components of lignocellulosic materials |
| 10/25/2006 | CN1281291C Method and appts. for transferring freely-flowing medium |
| 10/18/2006 | EP1712303A1 Method and device for collecting base paper for gypsum plaster board |
| 10/18/2006 | CN2828110Y Multi-roll type bagasse pith remover |
| 10/18/2006 | CN1847520A Paper pulp preparing process by means of violent decomposition of hydrogen peroxide in the presence of excessive alkaline matter |
| 10/18/2006 | CN1847519A Cotton stalk pulping process with high whiteness of pulp |
| 10/17/2006 | US7122181 Gene therapy; eye diseases |
| 10/12/2006 | US20060225853 Apparatus and method for production of pulp |
| 10/12/2006 | DE102005016318A1 Verfahren zur Mahlung von wässrig suspendierten Papier- oder Zellstoffasern sowie Mahlvorrichtung zu seiner Durchführung Method for grinding aqueous suspended paper or wood pulp and milling equipment for its implementation |
| 10/11/2006 | EP1710347A1 Process for pulping and cleaning of papermaking raw materials containing impurities |
| 10/11/2006 | EP1709238A1 Apparatus for use in recycling paper material |
| 10/11/2006 | EP1490547B1 Method for defibring recycled fibre material in a drum pulper, and a drum pulper |
| 10/11/2006 | CN2825714Y Water-floating type high-concentration rotary-drum pulper |
| 10/11/2006 | CN1844572A Biocatalytic clean pulping agent and application process thereof |
| 10/10/2006 | US7118648 Paper Strap |
| 10/04/2006 | EP1497494B1 Pulpstone surface treating arrangement |
| 10/04/2006 | CN1840676A Biophysical method for preparing cellulose and glucose by using yellow ginger |
| 10/04/2006 | CN1277984C Closed and combined FGSB wheat (rice) straw material preparing system |
| 09/27/2006 | CN1839228A Process for producing recycled pulp, method of modifying pulp fiber surface and contaminant, and pulp treating apparatus |
| 09/27/2006 | CN1839227A Multi-stage AP mechanical pulping process with refiner flow line treatment |
| 09/27/2006 | CN1837458A Chemical and machinery pulping process using complete white mulberry branch as raw material |
| 09/26/2006 | CA2256594C Method and apparatus for mixing a second medium with a first medium |
| 09/20/2006 | EP1702103A1 Method for refining paper or cellulose fibres in an aqueous suspension |
| 09/20/2006 | CN1834340A Separating method and system for waste paper and waste plastic mixture |
| 09/14/2006 | WO2006095349A1 Method of recycling fibers from sewage sludge and means thereof |
| 09/13/2006 | EP1699974A1 Process for preparing mechanical pulp |
| 09/13/2006 | CN1831238A Process for making daily used paper by using salix mongolica as raw material |
| 09/13/2006 | CN1274474C Crusher for fodder |
| 09/06/2006 | EP1697580A1 Process for increasing the refiner production rate and/or decreasing the specific energy of pulping wood |
| 09/06/2006 | EP1697026A2 Device and methodology for improved mixing of liquids and solids |
| 09/06/2006 | CN1827915A Hybrid penisetum NaOH-AQ method for pulp making, bleaching and paper forming |
| 09/06/2006 | CN1827911A Mechanical cold method for making paper pulp |
| 09/06/2006 | CN1273230C Used paper diaper processing method and used paper diaper processing device |
| 09/02/2006 | CA2534113A1 Compression screw with combination single and double flights |
| 08/30/2006 | EP1694913A1 Bleached and unbleached fibrous paper pulps and a method for producing the same |
| 08/30/2006 | EP1694905A2 Integrated paper comprising fibrillated fibers and active particles immobilized therein |
| 08/30/2006 | EP1454008B1 Method of separating colouring agents, particularly printing ink,from recycled fibre material |
| 08/24/2006 | US20060186235 Method for refining paper or cellulose fibers in an aqueous suspension |