| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
|---|
| 04/29/1997 | US5624609 Enhancements to the air injection devices in a paper pulp flow for de-inking thereof |
| 04/29/1997 | CA2102615C Wood chip screen deck |
| 04/23/1997 | EP0717799A4 Process and apparatus for manufacturing absorbent granular material |
| 04/22/1997 | US5622600 Remocal of fibers from ejection stream of papermaking liquids |
| 04/16/1997 | EP0767848A1 Process and plant for crushing a cellulose material |
| 04/16/1997 | EP0652802B1 Device for admixing a processing agent to a pulp suspension |
| 04/12/1997 | CA2160334A1 Method of dry separating fibers from paper making waste sludge and fiber product thereof |
| 04/10/1997 | WO1997013025A1 Method for improving the efficiency of chemical pulping processes by pretreating wood or pulpwood with white rot fungi |
| 04/10/1997 | CA2233046A1 Method for improving the efficiency of chemical pulping processes by pre-treatment with white rot fungi |
| 03/26/1997 | EP0764225A1 A light drainability, bulky chemimechanical pulp that has a low shive content and a low fine-material content |
| 03/26/1997 | EP0639115B1 Apparatus for refining fiber material |
| 03/25/1997 | US5614339 Object recycling by laser of coating material |
| 03/18/1997 | US5611882 Board stock and method of manufacture from recycled paper |
| 03/12/1997 | EP0761870A1 Process for the treatment of dry broke from a paper or board coating machine |
| 03/12/1997 | EP0652990B1 Method of processing recycled paper |
| 03/11/1997 | US5609724 Fungi for pitch reduction and their preparation |
| 03/05/1997 | EP0688377A4 Persulfate mixtures for repulping wet strength paper |
| 03/04/1997 | US5607547 Adding carbonate with sodium dithionite |
| 03/04/1997 | US5607546 CTMP-process |
| 02/27/1997 | DE19627282A1 Device to dissolve biological wastes and fibrous wastes |
| 02/27/1997 | DE19602273C1 Device for breaking up and sorting waste materials for recycling |
| 02/26/1997 | EP0759104A1 Method for defibering recycled paper |
| 02/20/1997 | WO1997005970A1 Object recycling by laser erasure of coating material |
| 02/13/1997 | WO1997005323A1 Device to promote reuse of office laser-print paper |
| 02/05/1997 | CN1141984A Wrinkling stripping-agent |
| 01/29/1997 | CN1141374A Method of producing fibers from stran and board products made therefrom |
| 01/28/1997 | US5597447 Blade-coated paper having a paper lamina produced from a furnish comprising recycled corrugated containers |
| 01/28/1997 | US5597128 Machine for destructuring wood chips |
| 01/28/1997 | US5597075 Method and apparatus for screening waste paper pulp |
| 01/22/1997 | EP0609296B1 Bagasse depither |
| 01/22/1997 | CN1033844C Producing method for lignocellulose and its equipment |
| 01/15/1997 | EP0753622A1 Method for separating contaminants from paper fibres and device for carrying out this method |
| 01/15/1997 | EP0700469B1 Improvements in and relating to the manufacture of feedstock for a processing operation |
| 01/14/1997 | US5593625 Biocomposite material and method of making |
| 01/14/1997 | US5593098 Apparatus for and method of pulping waste paper |
| 01/14/1997 | US5593096 Hammer milling through holes of grate; screening |
| 01/14/1997 | CA2180817A1 Process for the recovery of paper fibers and contaminants and apparatus for using same |
| 01/14/1997 | CA2068709C Oxygen color stripping in secondary fiber recovery |
| 01/08/1997 | EP0751829A1 Process and apparatus for recycling disposable diapers |
| 01/08/1997 | EP0558512B1 Treatment of absorbent sanitary paper products |
| 01/02/1997 | EP0751254A1 Device for controlled dispersion treatment of high consistency pulp |
| 01/02/1997 | EP0751253A2 Absorbent granular material and process and apparatus for making the absorbent granular material |
| 01/02/1997 | EP0750698A1 Apparatus for fluffing high consistency wood pulp |
| 12/27/1996 | WO1996041914A1 Low-resident, high-temperature, high-speed chip refining |
| 12/27/1996 | WO1996041894A1 Bubble apparatus for removing and diluting dross in a steel treating bath |
| 12/24/1996 | US5587048 Pulp and paper products produced from recycled, high lignin content, waste paper |
| 12/24/1996 | CA2102562C Rate control overflow system for disk screens |
| 12/18/1996 | EP0748836A1 Treatment of super absorbent polymer |
| 12/12/1996 | WO1996039557A1 Kneader for paper stuff |
| 12/11/1996 | EP0747526A2 Dyed particulate or granular materials from recycled paper and process for making the materials |
| 12/11/1996 | EP0746649A1 Methods for preparing pulpwood for digestion |
| 12/11/1996 | CN2242260Y Multi round screen connection apparatus used for pulp concentration and wash |
| 12/11/1996 | CN1137812A Method and apparatus for implementing optimum reaction of fluffing high consistency wood pulp and gas bleaching agant |
| 12/11/1996 | CN1137424A Method and apparatus for removing impurities from pulverized or chipped material, especially wood chip and fiber materials |
| 12/10/1996 | US5582686 High pressure water jet comminuting |
| 12/10/1996 | US5582352 Improving the quality by supplying oxygen and/or hydrogen peroxide |
| 12/08/1996 | CA2176422A1 Dyed particulate or granular materials from recycled paper and process for making the materials |
| 12/05/1996 | WO1996038625A1 Process and plant for crushing a cellulose material |
| 12/05/1996 | WO1996038624A1 Method and apparatus for mechanical defibration of wood |
| 12/05/1996 | WO1996038623A1 Machine for destructuring wood chips |
| 12/05/1996 | CA2195409A1 Process and plant for crushing a cellulose material |
| 12/04/1996 | EP0745463A2 Method and apparatus for reducing blowline obstructions during production of cellulosic composites |
| 12/04/1996 | CN1137245A Separation apparatus for separating and recovering valuables from defective goods such as paper diaper, and separation method |
| 12/04/1996 | CN1137242A Device for admixing processing agent to pulp suspension |
| 12/03/1996 | US5580472 Paper pulp defibering or refining plate and method of manufacturing it |
| 12/03/1996 | CA2168682A1 Method and apparatus for reducing blowline obstructions during production of cellulosic composites |
| 12/03/1996 | CA2048388C Laminated material and process for manufacturing the same |
| 11/28/1996 | DE19519433A1 Low energy process for treating contaminated suspensions of fibrous materials, e.g. waste-paper |
| 11/26/1996 | US5577671 Method for manufacturing low bark content wood chips from whole-tree chips |
| 11/26/1996 | CA2030214C Method and apparatus for preparing paper-containing and plastic-containing waste materials for component fraction separating |
| 11/21/1996 | WO1996036764A1 Method for recycling mixed wastepaper using ink agglomeration |
| 11/21/1996 | WO1996036763A1 Pulping apparatus and related method for recycling paper |
| 11/21/1996 | DE19541892C1 Mechanical treatment of consolidated fibrous material, esp. waste paper |
| 11/21/1996 | CA2220520A1 Method for recycling mixed wastepaper using ink agglomeration |
| 11/20/1996 | EP0742741A1 Blade tensioning mechanism |
| 11/13/1996 | EP0742310A1 Treatment of effluent from a paper treatment process |
| 11/07/1996 | WO1996035016A1 Disc refiner with conical ribbon feeder |
| 11/07/1996 | CA2219905A1 Disc refiner with conical ribbon feeder |
| 11/05/1996 | US5571422 Deinking |
| 10/30/1996 | EP0739709A1 A composition and method for creping fibrous webs |
| 10/30/1996 | EP0739657A1 Separation apparatus for separating and recovering valuables from defective goods such as paper diaper, and separation method |
| 10/29/1996 | US5568896 Methods for preparing pulpwood for digestion |
| 10/24/1996 | WO1996033309A1 Method for co-refining dry urban wood chips and blends of dry urban wood chips and thermoplastic resins for the production of high quality fiberboard products |
| 10/24/1996 | CA2217874A1 Method for co-refining dry urban wood chips and blends of dry urban wood chips and thermoplastic resins for the production of high quality fiberboard products |
| 10/23/1996 | EP0738342A1 Method for controlling a process by measurement of wood chips |
| 10/23/1996 | EP0602117B1 Crushing mechanism |
| 10/22/1996 | US5567245 Method for separating vinylidene chloride polymer from other polymers |
| 10/17/1996 | WO1996032203A1 Wood chip screening apparatus with blades having nonlinear top edges |
| 10/17/1996 | WO1996029465A3 Method and device for process control in cellulose and paper manufacture |
| 10/17/1996 | CA2215845A1 Wood chip screening apparatus with blades having nonlinear top edges |
| 10/16/1996 | EP0663972B1 Process for making board |
| 10/15/1996 | US5564635 Apparatus for dry disintegration of used paper |
| 10/15/1996 | US5564572 Method and apparatus for screening waste paper pulp |
| 10/15/1996 | US5564198 Apparatus for supplying steam into a silo |
| 10/09/1996 | EP0735918A1 Device for admixing a processing agent to a pulp suspension |
| 10/09/1996 | EP0688373B1 Process to produce chemi-mechanical pulp and/or chemi-thermo-mechanical pulp |
| 10/08/1996 | CA2052893C Abrasion-resistant plates and method of fabricating same |
| 10/01/1996 | US5560729 Elastomeric joint for a blade tensioning mechanism |
| 10/01/1996 | US5560553 Nose bar deflector for fiberizing hammermill |
| 10/01/1996 | US5560496 Adjustable bar screen |