Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21B - Fibrous raw materials or their mechanical treatment › D21B 1 - Fibrous raw materials or their mechanical treatment
Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805)
02/1996
02/28/1996EP0698681A1 Process for depithing pith containing plants, in particular sorghum
02/28/1996EP0683693A4 Method and apparatus for separation by flotation.
02/22/1996WO1996005361A1 Flotation deinking of wastepaper using a froth controlling agent
02/22/1996DE4429277A1 Regulating flotation cell for de=inking waste paper
02/21/1996EP0697043A1 Improvements in or relating to deinking of paper
02/21/1996CN1117101A A method for producing chemithermomechanical pulp
02/15/1996WO1996004113A1 Device for producing shredded material
02/14/1996EP0573497B1 Recycling waste cellulosic material
02/08/1996DE4427347A1 Vorrichtung zur Herstellung von Schnipselmaterial An apparatus for the production of scraps material
01/1996
01/31/1996EP0694096A1 Apparatus and method for treating a pulp slurry of waste paper
01/30/1996CA2059562C Disc screen with controlled interfacial openings
01/24/1996EP0693318A1 Flotation device
01/18/1996WO1996001337A1 The process for mechanical treatment of woody products, the product thus obtained and its use
01/18/1996DE4425237A1 Disposal of woven sacking
01/17/1996EP0692043A1 Process and enzyme preparation for preparing mechanical pulp
01/16/1996US5484508 Cellulose
01/09/1996CA2072661C Wood particle screen
01/03/1996EP0689625A1 Pitch degradation with white rot fungi
01/03/1996CN1114375A Method for making wooden cellulose
12/1995
12/27/1995EP0688377A1 Persulfate mixtures for repulping wet strength paper
12/27/1995EP0688373A1 Process to produce chemi-mechanical pulp and/or chemi-thermo-mechanical pulp
12/27/1995EP0688372A1 System and method for recycling materials
12/21/1995WO1995034711A1 A light drainability, bulky chemimechanical pulp that has a low shive content and a low fine-material content
12/21/1995DE4420976A1 High pressure lumpy fibre pulp is cheaply, evenly and reliably extruded
12/21/1995CA2192570A1 A light drainability, bulky chemimechanical pulp that has a low shive content and a low fine-material content
12/20/1995EP0687320A1 Process for preparing mechanical pulp
12/20/1995EP0591475B1 A method of and an apparatus for treating waste paper
12/19/1995US5476790 Inoculation with schizophyllum trichaptum and phanerochaete
12/19/1995US5476789 Composition containing strains of Ophiostoma piliferum and a method of using the composition to reduce the pitch content of pulpwood or pulp
12/19/1995US5476179 Adjustable bar screen
12/19/1995CA2016365C Procedure and means for separating plastic particles electrically from solutions in particular from cellulose and paper fibre solutions
12/13/1995EP0677123A4 Deinking of printed paper by agglomeration process.
12/12/1995USRE35118 Method and apparatus for fiberizing and cellulosic product thereof
12/12/1995US5474186 For classifying objects by thickness
12/12/1995CA2060832C Flexible embedded disc screen
12/12/1995CA2036313C Method for processing mixtures of secondary fibers and mechanical pulps
12/05/1995US5472285 Apparatus for refining fiber material
11/1995
11/29/1995EP0683831A1 A method to separate cellulose based fibers from each other in water
11/29/1995EP0683830A1 Method of preparing chemi-mechanical pulp.
11/29/1995EP0683693A1 Method and apparatus for separation by flotation
11/28/1995CA2023904C Deinking and bleaching secondary fiber
11/23/1995WO1995031597A1 Method for defibering recycled paper
11/23/1995CA2189974A1 Method for defibering recycled paper
11/22/1995EP0682727A1 A method for the production of plastic formed products containing cellulose fibres from straw and an intermediate moulding composition therefor
11/14/1995US5466334 Method and apparatus for mixing a treatment agent with a pulp suspension
11/14/1995US5465915 Apparatus for dividing a flow of fibrous material into at least two equally metered flows
11/08/1995EP0680376A1 Varying annular fluidization zone for increased mixing efficiency in a medium consistency mixer
11/07/1995US5464161 Solid waste pulper
11/07/1995CA2069504C Disk screen with compressible spacers and flanged surrounds
10/1995
10/25/1995EP0439493B1 Wood chip cracking apparatus
10/18/1995EP0677123A1 Deinking of printed paper by agglomeration process
10/18/1995EP0677122A1 A method of producing mechanical and chemi-mechanical pulp
10/10/1995US5456964 A reinforced sheet comprising a plurality of vegetable stalks impregnated with a heating hardener solution; displaying, building material, furniture, heat insulation, sound absorber; high mechanical strength, dimensional stability, lightweight
10/04/1995CN2209165Y Straw fiber dedusting device capable of introducing dedusted straw fibre into boiler to burn for paper mill
10/03/1995US5454935 Reactor for removing impurities from a liquid
10/03/1995US5454911 Apparatus for hydrolyzing and drying lignocellulosic material
10/03/1995US5454907 Method of refining woodchips or beating wood pulp with a selectively sulfonated chitosan
09/1995
09/27/1995EP0674040A1 Process for de-inking paper pulp and apparatus for the application of the process
09/27/1995CN1109124A Grass sorting machine
09/26/1995US5453159 High and low speed agitataion
09/21/1995WO1995025196A1 Impregnation of wood pieces by compression followed by expansion before grinding into pulp
09/21/1995WO1995024967A1 Process and apparatus for recycling disposable diapers
09/21/1995CA2185122A1 Process and apparatus for recycling disposable diapers
09/12/1995US5449122 Extended outer ring for refiner plate
09/12/1995CA2049623C Split feed reject claimer
09/07/1995DE4406315A1 Waste disposal unit for biological kitchen refuse
09/05/1995US5447276 Crushing mechanism
09/05/1995US5447238 Separating mechanism
09/05/1995CA2013177C Apparatus and method for sizing wood chips
08/1995
08/29/1995US5445329 Apparatus, system for treating process material such as waste material
08/24/1995WO1995022651A1 Methods for preparing pulpwood for digestion
08/22/1995US5443213 Screen apparatus for paper making
08/09/1995EP0665910A1 Mixing device in pulping
08/09/1995EP0494214B1 Process for manufacturing chemo-mechanical and/or chemo-thermo-mechanical wood pulps
08/08/1995US5439183 Refiner segment
08/01/1995US5437784 Injector for a flotation device
08/01/1995US5437418 Apparatus for crosslinking individualized cellulose fibers
07/1995
07/26/1995EP0663972A1 Process for making board.
07/20/1995WO1995019232A1 Blade tensioning mechanism
07/19/1995CN2203632Y Rolling vibrating screen dust separator
07/04/1995US5429311 Process of recycling of disposable diapers and the machine components thereof
07/04/1995CA1336181C Procedure and apparatus for the sorting of wood chips
06/1995
06/29/1995WO1995017243A1 Device for admixing a processing agent to a pulp suspension
06/28/1995EP0659932A2 Method and centrifugal separator for magnetically removing ink particles
06/28/1995EP0659489A2 Means for generating air bubbles in a liquid
06/27/1995US5427321 Waste paper processing system
06/27/1995CA2027047C Compressible ring spacer disk screen
06/22/1995DE4343507A1 Recycling wetting resistant paper
06/14/1995EP0363379B1 Porphyrins, their syntheses and uses thereof
06/14/1995CN1103685A High-concentration de-inking method for waste paper
06/14/1995CA2123328A1 Magnetic deinking
06/13/1995US5423993 Fiber recovery system and process
06/08/1995WO1995015412A1 System for de-inking newsprint using conterflow extractor
06/08/1995WO1995015252A1 Processing lignocellulosic agricultural residue
06/08/1995CA2177984A1 Processing lignocellulosic agricultural residue
06/06/1995US5421526 Delamination by treating waste with organic acid to separate plastic, and metal layers; reuse
06/01/1995WO1995014810A1 Method and device for feeding out fibre pulp
05/1995
05/30/1995US5419498 Material handling system and method
05/26/1995WO1995014133A1 Segmented wood chip cracking roll
05/24/1995CN2198300Y Bamboo paper material pulper
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