| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 05/30/2000 | US6068132 Perfected reactor for liquids purification |
| 05/25/2000 | WO2000029665A1 Device for defibrating fibrous sheets |
| 05/24/2000 | EP1002897A1 Process and apparatus for shredding compacted papermaking fibrous material |
| 05/24/2000 | EP1002154A1 Method of pretreating lignocellulose fiber-containing material for the pulp making process |
| 05/24/2000 | CN1254392A Pulping apparatus |
| 05/18/2000 | DE19852549A1 Verfahren und Vorrichtung zur Entfernung von Partikeln aus einer wässrigen papierfaserhaltigen Suspension Method and apparatus for removing particles from an aqueous paper fiber-containing suspension |
| 05/18/2000 | DE19852548A1 Verfahren und Vorrichtung zur Entfernung von Partikeln aus einer wässrigen papierfaserhaltigen Suspension Method and apparatus for removing particles from an aqueous paper fiber-containing suspension |
| 05/17/2000 | EP1001079A1 Method and device for removing particles from aqueous paper fibre suspension |
| 05/17/2000 | EP1001078A1 Method and device for removing particles from aqueous paper fibre suspension |
| 05/17/2000 | EP1001076A1 Process and plant for the production of paper pulp |
| 05/17/2000 | CN2378428Y Wheatgrass extrusion defibering machine |
| 05/17/2000 | CN2378427Y Steaming blowing pulping technique apparatus |
| 05/17/2000 | CN2378131Y Screen drum |
| 05/16/2000 | US6062394 Modular wood particle screen |
| 05/11/2000 | WO2000025600A1 Method for processing straw pulp |
| 05/10/2000 | EP0874935B1 Process for producing pulp from lignocellulosic plants, and pulp obtained |
| 05/09/2000 | US6059926 Method for manufacturing a paper diaphragm for a loud speaker |
| 05/03/2000 | EP0602182B1 Apparatus and method for deinking waste paper pulp |
| 05/03/2000 | CN1252111A Production of fibrous materials with improved properties |
| 05/03/2000 | CN1251869A Method and apparatus for loosening pressed materials containing paper fibers |
| 05/03/2000 | CN1052049C Method of producing mechanical and chemi-mechanical pulp |
| 04/27/2000 | DE19850204A1 Aggregate mixer rotor has quick-change cutting boots made of suitable alloy for adaptation to different materials |
| 04/27/2000 | DE19847400A1 Apparatus for crushing and distributing particles to form a suspension includes a rotor whose stator side has an axial passage linked to an inlet passage and branches into several radial passages at its perimeter |
| 04/25/2000 | US6053441 Toroidal flow pulper for difficult materials |
| 04/25/2000 | US6053439 Removing a substantial portion of the wax content by pulping the wax paper fiber at high temperature to separate a pulp fraction and form an emulsion of water and molten wax, separating the pulp by filtering in a reverse pressure screen |
| 04/25/2000 | US6053328 Baffle for reactors used for liquids purification |
| 04/20/2000 | WO2000021677A1 Method and apparatus for decontaminating liquid suspensions |
| 04/20/2000 | DE19947856A1 Fiberboard, comprises cellulose fibers separated from recycled foodstuff packaging cardboard and bonding agent |
| 04/13/2000 | DE19910958A1 Recycling industrial waste fabrics of silicon dioxide filaments involves chopping, sieving and de-sizing followed by use in industrial paper making |
| 04/12/2000 | EP0613420B1 Board stock and method of manufacture from recycled paper |
| 04/11/2000 | CA2197290C Wood chip optimizer |
| 04/06/2000 | WO2000019005A1 A sanitary paper product made by modifying coarse fibers and process thereof |
| 04/06/2000 | WO2000019004A1 Semi alkaline steam explosion treatment of fibrous material for the production of cellulose pulp |
| 04/06/2000 | DE19845513A1 For the disinfection of used paper materials it is compressed to extract the residual air for intensive heating followed by dispersion with added chemicals if required |
| 04/06/2000 | DE19844533A1 Disintegrator for wet or dry fibrous materials used in papermaking and cellulose industries, includes disintegration vanes inducing recirculating flow through rotor cavities |
| 04/06/2000 | CA2344820A1 A sanitary paper product made by modifying coarse fibers and process thereof |
| 04/05/2000 | EP0990733A1 Method for killing germs in a material containing papermaking fibres and apparatus for applying the method |
| 04/04/2000 | US6045070 Materials size reduction systems and process |
| 03/30/2000 | WO2000016888A1 A mixing method and a mixing chamber |
| 03/30/2000 | DE19844532A1 Appts to raise the moisture content of baled fiber materials has a lance inserted into the bale connected to a high pressure feed and fitted with outlet openings along the lance shaft |
| 03/30/2000 | DE19831530C1 Flotation for cleaning fiber suspensions of used paper for recycling uses additional and larger gas bubbles to carry up the foreign matter with the air bubbles into a floating foam for removal |
| 03/29/2000 | EP0989228A1 Vegetable material from cereal plants and process for making the same |
| 03/29/2000 | EP0883711B1 Production method |
| 03/29/2000 | CN1050871C Method and apparatus for separating paper fibre and plastics from mixed waste materials and products obtained thereby |
| 03/28/2000 | US6042036 Refining element |
| 03/23/2000 | WO2000015569A1 Treatment of fibres |
| 03/23/2000 | WO2000015568A1 Improvements in or relating to glass fibre |
| 03/15/2000 | EP0985761A2 Apparatus for destructuring wood chips |
| 03/09/2000 | WO2000012810A1 Method for preparation of a fibrous stock out of herb-stemmed plants |
| 03/09/2000 | DE19829648A1 Grobschmutzfängervorrichtung zum Herausheben der Grobstoffe aus einem Pulper und entsprechendes Arbeitsverfahren Coarse dirt collector according to the lifting of the coarse materials from a pulper and appropriate work practices |
| 03/08/2000 | CN1246901A Method of making sanitary paper products from recycled newspapers |
| 03/07/2000 | US6032885 Control system for a repulping apparatus |
| 03/07/2000 | US6032884 Replaceable shear edge for a star-type feeder |
| 03/01/2000 | EP0982082A1 Apparatus for separating mixed particulate material |
| 03/01/2000 | CA2281192A1 Chip conditioner drive |
| 02/24/2000 | WO2000009771A1 Liquid carton waste material recycling process and apparatus for recycling liquid carton waste material |
| 02/24/2000 | WO2000009770A1 Process and apparatus for recovering metal material from waste material |
| 02/24/2000 | CA2339851A1 Liquid carton waste material recycling process and apparatus for recycling liquid carton waste material |
| 02/21/2000 | CA2280604A1 Feed distribution for low velocity air density separation |
| 02/17/2000 | DE19836252A1 Cleaning of used paper and cellulose suspensions uses an eddy chamber for the suspension where injected water flows at a high relative speed to separate particles and gels and break up fiber clumps |
| 02/16/2000 | EP0979895A1 Method and device for refining fibres |
| 02/02/2000 | EP0975834A1 Multiflow pressurized de-inking apparatus |
| 02/02/2000 | EP0771237B1 Apparatus for treating process material such as waste material |
| 02/02/2000 | CN2361659Y Composite millstone for plant fibre separator |
| 02/01/2000 | US6019873 Floor absorbent granular product |
| 01/27/2000 | WO2000004232A1 Nits separator |
| 01/25/2000 | US6017475 Process of transforming household garbage into useful material |
| 01/13/2000 | WO2000001878A1 Coarse dirt collector for removing coarse material from a pulper and corresponding method |
| 01/13/2000 | WO2000001877A1 Method, apparatus and plant for the recovery of wood fibre from compressed fibreboard scrap |
| 01/13/2000 | WO2000001217A1 Holder for displaying, as well as a method for making, a floral bouquet |
| 01/13/2000 | DE19831433A1 Verfahren und Anordnung zur Gewinnung von Naturfasern, insbesondere Bambusfasern, die den Zweck der Verstärkung erfüllen Method and apparatus for the production of natural fibers, especially bamboo fibers that meet the purpose of enhancing |
| 01/13/2000 | CA2337802A1 Method, apparatus and plant for the recovery of wood fibre from compressed fibreboard scrap |
| 01/13/2000 | CA2300074A1 Holder for displaying, as well as a method for making, a floral bouquet |
| 01/12/2000 | EP0971065A2 Process and apparatus for obtaining natural fibres, in particular bamboo fibres, for use as a reinforcing material |
| 01/11/2000 | US6013157 Aqueous pulp suspension comprising secondary fibers cotaining ink particles mixed wtih a chemical deinking agent and a froth moderating agent |
| 01/06/2000 | WO1999054045A8 Method and apparatus for processing pulp stock derived from a pulp or paper mill |
| 01/04/2000 | US6010593 Measuring suspensed ink particle; separation |
| 01/04/2000 | CA2018175C Pulper |
| 12/30/1999 | DE19826879A1 Verfahren und Behälter zum Stapeln von hochkonsistentem Papierfaserstoff Method and container stacking high-consistency paper pulp |
| 12/29/1999 | EP0967321A1 A method for recycling of old corrugated container using flotation and kneading treatment |
| 12/29/1999 | EP0966563A1 Method to obtain wood with weak fibre connections |
| 12/29/1999 | CN2356056Y Wire forming machine for grass material tearing |
| 12/28/1999 | US6006922 Spacer for bar screen |
| 12/27/1999 | CA2276246A1 A method for recycling of old corrugated container using flotation and kneading treatment |
| 12/23/1999 | WO1999066119A1 Arundo donax pulp, paper products, and particle board |
| 12/23/1999 | CA2339064A1 Arundo donax pulp, paper products, and particle board |
| 12/22/1999 | EP0965682A1 Method and container for stacking high consistency pulp |
| 12/22/1999 | EP0750698B1 Apparatus for fluffing high consistency wood pulp |
| 12/21/1999 | US6003682 Bar screen drive system |
| 12/16/1999 | DE19847532C1 Assembly to break down compressed bales of paper and cardboard materials |
| 12/15/1999 | EP0963479A1 Feeding element for fibrous material |
| 12/15/1999 | EP0963251A1 Feeding device for fibrous material |
| 12/14/1999 | US6000640 Process and device for the decomposition of fibrous materials |
| 12/14/1999 | US6000552 Process for purification of a fiber suspension |
| 12/14/1999 | CA2171340C Process and apparatus for manufacturing granular material |
| 12/09/1999 | WO1999063148A1 Pulper |
| 12/09/1999 | DE19824806A1 Siebvorrichtung und diese verwendende Stofflösevorrichtung Screening device and use this pulper |
| 12/08/1999 | EP0961851A1 Process for producing fibrous materials with improved properties |
| 12/08/1999 | EP0731857B1 Reducing gaseous emissions from a chip bin |
| 12/08/1999 | EP0651679B1 Tension bar screen |