| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 02/18/1986 | CA1200805A1 Process and an apparatus for separating cellulose flocks from their covers in sanitary articles of cellulose |
| 02/13/1986 | WO1986000826A1 Screw type crusher |
| 01/28/1986 | US4566942 Method of and apparatus for treating waste paper |
| 01/22/1986 | EP0169174A2 Apparatus for the dry defibration of sheets of fibrous cellulose material and like materials, particularly for the preparation of absorbent masses for disposable nappies and the like |
| 01/22/1986 | EP0168398A1 Method and apparatus for manufacturing fiber pulp |
| 01/14/1986 | CA1199312A1 Folding display container |
| 01/07/1986 | US4563243 Apparatus and a method for producing wood pulp in a hollow cylinder containing a rotatable screw |
| 01/07/1986 | US4562969 Process for preparing groundwood pulp as short fiber and long fiber fractions |
| 12/24/1985 | US4560439 Method and grinder for the manufacture of pulp |
| 12/24/1985 | CA1198302A1 Method and apparatus for defiberizing waste paper in a thick stock range |
| 12/18/1985 | EP0164428A1 Apparatus for pulping and sorting waste paper |
| 12/11/1985 | EP0163650A1 Method and apparatus for manufacturing fibre pulp |
| 12/10/1985 | US4557826 Using a mass force field and pick-up surface |
| 11/19/1985 | US4553977 Solid waste processing |
| 11/12/1985 | US4552616 Lignocellulose, drying, softening, efficiency, defibering, pollution control |
| 10/23/1985 | EP0158827A2 Arrangement for treating waste paper |
| 10/22/1985 | US4548673 Method and apparatus for deinking |
| 10/10/1985 | WO1985004432A1 Aeration installation |
| 10/09/1985 | EP0157163A1 Process and apparatus for the flotation of dispersions |
| 10/08/1985 | US4545537 Shredder with increased reversed unlocking torque |
| 09/24/1985 | CA1193808A1 Chemical pulp having improved strength, drainability and beatability, and a process of making said pulp |
| 09/18/1985 | EP0103577B1 Process of producing fiberboard according to the wet method |
| 09/17/1985 | US4541571 Method of controlling a grinding process in a pocket grinder |
| 09/17/1985 | CA1193520A1 Method of and apparatus for debarking wood chips |
| 09/17/1985 | CA1193405A1 Method for the manufacture of a cellulosic fiber paste for uses other than papermaking |
| 09/12/1985 | WO1985003960A1 Method and device for the flotation of dispersions |
| 09/03/1985 | US4538767 Apparatus for recovering paper-making fiber from contaminated waste paper products |
| 09/03/1985 | US4538765 Method for defiberizing waste paper in a thick stock range |
| 08/28/1985 | EP0153182A2 Process for producing finely divided cellulose particles |
| 08/28/1985 | EP0081539B1 A method and device for disintegrating coarse material |
| 08/20/1985 | US4535943 Pulping apparatus including a rotor and helical screw flights extending upwardly from the rotor |
| 08/20/1985 | CA1192072A1 High bulk pulp, filter media utilizing such pulp, related processes |
| 08/13/1985 | US4534397 Improved strength; brightness |
| 07/30/1985 | US4531681 Flexible disk refiner and method |
| 07/30/1985 | CA1191042A1 Method and apparatus for recovering paper-making fiber from contaminated waste paper products |
| 07/16/1985 | US4529137 Multiple disk refiner for low consistency refining of mechanical pulp |
| 07/10/1985 | EP0147564A1 Apparatus for cleaning waste paper stock |
| 07/09/1985 | CA1190078A1 Cut and mill fiberizer |
| 07/03/1985 | EP0146565A1 Method and apparatus for separating wettable and non-wettable particles |
| 06/26/1985 | EP0146515A1 Apparatus for treating cellulose pulp |
| 06/12/1985 | EP0144302A1 Apparatus for treating cellulose pulp |
| 06/12/1985 | EP0144301A1 Apparatus for treating cellulose pulp |
| 06/11/1985 | US4522344 Wood chip screening and processing methods and apparatus |
| 05/28/1985 | CA1187657A1 Method for the production of fiber pulp |
| 05/21/1985 | US4518500 Apparatus for treating a fibrous material |
| 05/09/1985 | WO1985001888A1 Device at flotation of fibre suspensions |
| 05/08/1985 | EP0139633A1 Reactor to perform chemical reactions with dimensional reduction of solid materials. |
| 05/07/1985 | US4515318 Method for controlling a piston fed wood grinder |
| 04/24/1985 | EP0138484A2 Mechanical pulping |
| 04/23/1985 | US4512888 Apparatus for removal by flotation of solid particles from liquid |
| 04/16/1985 | CA1185708A1 Froth flotation apparatus and method |
| 04/10/1985 | EP0136963A2 Composite flexible pulp refiner disk and method of making same |
| 04/03/1985 | EP0135556A1 A hammer mill and a method for operating the same |
| 03/26/1985 | US4507144 Plant growth method and composition |
| 03/12/1985 | CA1183711A1 Pulping apparatus including improved rotor |
| 03/05/1985 | US4502918 Two-stage chemical treatment of mechanical wood pulp with sodium sulfite |
| 03/05/1985 | CA1183377A1 Method and grinder for the manufacture of pulp |
| 03/05/1985 | CA1183353A1 Element and construction method for internal grinding surface |
| 02/19/1985 | US4500040 Method and apparatus for separating the components of cellulose sanitary articles |
| 02/05/1985 | US4497448 For disintegrating wood pulp sheets |
| 01/16/1985 | EP0131532A2 Flexible disk refiner and method of reducing particulate material |
| 01/15/1985 | CA1180926A1 Pulp refining apparatus and methods |
| 01/02/1985 | CA1180217A Method of increasing the temperature of shower water used in wood grinding process |
| 12/04/1984 | US4486267 Chemithermomechanical pulping process employing separate alkali and sulfite treatments |
| 11/28/1984 | EP0126632A2 Pulping apparatus and method |
| 11/28/1984 | EP0126068A1 Chip sizing process |
| 11/27/1984 | CA1178567A1 Apparatus for fiberizing and screening of fibrous materials |
| 11/20/1984 | US4483743 Deinking paper, terpenes |
| 11/13/1984 | US4482095 Bi-directional rotor and stator in a vortical circulation pulper |
| 11/13/1984 | CA1177710A1 Method of improving the utilization of heat energy produced in a wood grinding process |
| 11/13/1984 | CA1177608A1 Two-stage chemical treatment of mechanical wood pulp |
| 11/08/1984 | WO1984004258A1 Method and apparatus for separating wettable and non-wettable particles |
| 11/07/1984 | EP0124431A1 Pulping rotors |
| 11/06/1984 | US4480796 Pulping apparatus including improved rotor |
| 10/31/1984 | EP0123355A2 Method of separating domestic waste |
| 10/31/1984 | EP0123068A2 Method for the elimination of pulpers |
| 10/31/1984 | EP0122991A2 Apparatus and method for pulping paper making stock at high consistencies |
| 10/25/1984 | WO1984004113A1 Method and apparatus for making fibre pulp |
| 10/24/1984 | EP0122868A2 A multiple disk refiner for refining low-consistency papermaking stock |
| 10/24/1984 | EP0122769A2 Separation of fibres from vegetable matter |
| 10/24/1984 | EP0122747A2 Apparatus for deinking |
| 10/23/1984 | US4478374 Chip thickness separator |
| 10/03/1984 | EP0120766A1 Process and apparatus for sorting a mixture of paper pulp and impurities |
| 10/02/1984 | US4474335 Apparatus for centrifugal pulpwood and wood chip grinding |
| 09/27/1984 | WO1984003724A1 Reactor to perform chemical reactions with dimensional reduction of solid materials |
| 09/26/1984 | EP0119351A2 Offset orbit fluff generator |
| 09/13/1984 | WO1984003526A1 Method and apparatus for manufacturing fiber pulp |
| 09/13/1984 | WO1984003454A1 A hammer mill and a method for operating the same |
| 09/11/1984 | CA1174092A1 Chip crushing surfaces |
| 09/11/1984 | CA1174013A1 Method at mechanical cellulose pulp manufacture |
| 09/05/1984 | EP0117716A2 Apparatus for pulping paper, and a rotor therefor |
| 09/04/1984 | CA1173604A1 Production of chemimechanical pulp |
| 08/30/1984 | WO1984003313A1 Method and apparatus for manufacturing fibre pulp |
| 08/21/1984 | US4466975 Microbiocides bactericides |
| 08/14/1984 | US4465591 Method and apparatus for treating waste paper |
| 08/14/1984 | CA1172486A1 Method for improving the utilization of heat energy produced in a wood grinding process |
| 08/14/1984 | CA1172485A1 Method and apparatus for centrifugal pulpwood and wood chip grinding |
| 07/31/1984 | CA1171742A1 Self-supporting moldable fiber mat and process for producing the same |
| 07/24/1984 | US4461648 Method for increasing the accessibility of cellulose in lignocellulosic materials, particularly hardwoods agricultural residues and the like |
| 07/18/1984 | EP0113353A1 Method and apparatus for producing fibre pulp from fibrous lignocellulose containing material. |