| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
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| 10/25/1984 | WO1984004114A1 Pulp washing process |
| 10/24/1984 | EP0014713B1 A method of refining cellulose pulps |
| 10/23/1984 | CA1176408A1 Process for the oxygen delignification of pulp |
| 10/09/1984 | US4476323 Surface-active quaternary ammonium compounds for treatment of textiles and cellulosic materials |
| 10/09/1984 | US4475984 Process for pretreating wood chips with monoperoxy sulfuric acid or its salts prior to alkaline pulping |
| 10/09/1984 | CA1175612A1 Building materials and method of manufacturing same |
| 10/09/1984 | CA1175610A1 Process for alkaline oxygen gas bleaching of cellulose pulp |
| 10/03/1984 | EP0120471A2 Redispersable microfibrillated cellulose |
| 10/03/1984 | EP0120132A1 Process for bleaching raw paper materials |
| 09/27/1984 | WO1984003724A1 Reactor to perform chemical reactions with dimensional reduction of solid materials |
| 09/18/1984 | US4472242 Method of pipe line washing |
| 09/18/1984 | CA1174666A1 Mixing and imseminating hollow rotor operable in a conduit |
| 09/11/1984 | CA1174013A1 Method at mechanical cellulose pulp manufacture |
| 09/05/1984 | EP0117300A2 Adsorbent for treating recycling and waste waters in paper making and related industries |
| 09/04/1984 | CA1173761A1 Method and equipment for thickening of suspension or pulp |
| 09/04/1984 | CA1173604A1 Production of chemimechanical pulp |
| 09/04/1984 | CA1173603A1 Pressure diffuser controlling |
| 08/28/1984 | US4468319 Stationary diffuser |
| 08/28/1984 | US4468286 Method of gas treatment of fluffed pulp |
| 08/22/1984 | EP0116512A1 Fiber debonder formulation comprising diamido quaternary ammonium compound and alkoxylated fatty acid |
| 08/21/1984 | US4466975 Microbiocides bactericides |
| 08/21/1984 | US4466861 Process for the inhibition of the formation of deposits in cellulose pulping and cellulose pulp treating processes |
| 08/21/1984 | CA1172971A1 Process for displacement washing of porous media |
| 08/15/1984 | EP0116009A1 Continuous counterflow wood pulp fiber washing mechanism and method |
| 08/07/1984 | US4464287 Homogeneous, oil-in-water emulsions |
| 07/31/1984 | US4462864 Oxidation with peroxide in an alkaline medium |
| 07/17/1984 | CA1170966A1 Reinforced structures |
| 07/17/1984 | CA1170953A1 Microbicidal/microbistatic compositions and use thereof |
| 07/10/1984 | US4459174 Process for the delignification and bleaching of chemical and semi-chemical cellulosic pulps |
| 07/10/1984 | CA1170487A1 Process for improving and retaining pulp properties |
| 07/10/1984 | CA1170430A1 Method for control of chemicals during treatment with gas |
| 07/04/1984 | EP0112377A1 Ozone bleaching of cellulosic materials. |
| 06/26/1984 | CA1169603A1 Microbicidal/microbistatic compositions and use thereof |
| 06/21/1984 | WO1984002366A1 Method of peroxide bleaching cellulose-containing material |
| 06/19/1984 | US4454992 Borate or boric acid impregnation |
| 06/05/1984 | US4452722 Hydrophilic polymers |
| 06/05/1984 | US4452721 Suspensions containing microfibrillated cellulose |
| 06/05/1984 | CA1168438A1 Method and device for dispersing material |
| 05/29/1984 | US4451332 Method for delignification of ligno-cellulose containing fiber material with an alkali-oxygen extraction stage |
| 05/22/1984 | US4450044 Replacing chlorine-containing bleaches; pollution control |
| 05/15/1984 | CA1167207A1 Process for the oxygen bleaching of cellulose pulp |
| 05/15/1984 | CA1167206A1 Alkaline oxygen delignification and bleaching of cellulose pulp in the presence of aromatic diamines |
| 05/15/1984 | CA1167205A1 Apparatus and method for medium consistency oxygen delignification of pulp |
| 05/08/1984 | US4447320 Device for cleaning and recovering paper pulp |
| 05/01/1984 | US4445969 Process for the delignifying bleaching of cellulose pulp by activating the pulp with NO2 and oxygen |
| 04/25/1984 | EP0106609A1 Apparatus and method for oxygen extraction of lower consistency pulp |
| 04/25/1984 | EP0106460A1 Improved method and apparatus for oxygen delignification |
| 04/24/1984 | US4444830 Coating in aqueous polymer solution |
| 04/24/1984 | US4444621 Process and apparatus for the deresination and brightness improvement of cellulose pulp |
| 04/18/1984 | EP0105722A1 Formable pulp compositions |
| 04/10/1984 | US4441224 Washing, bleaching or thickening wood pulp without clogging screens |
| 04/03/1984 | CA1164704A1 Method for improving the washing of cellulose pulps |
| 03/27/1984 | US4439271 Process for the oxygen bleaching of cellulose pulp |
| 03/27/1984 | CA1164259A1 Bleaching system for pulp reject treatment |
| 03/27/1984 | CA1164157A1 Bleaching of bagasse pulps with alkali-oxygen |
| 03/21/1984 | EP0103086A1 Diffuser assembly |
| 03/06/1984 | US4435085 Mixer for use in pulp processes |
| 02/28/1984 | CA1162819A1 Suspensions containing microfibrillated cellulose |
| 02/28/1984 | CA1162704A1 Dimethylamide and cationic surfactant debonding compositions and the use thereof in the production of fluff pulp |
| 02/22/1984 | EP0101319A2 Fibrous webs of enhanced bulk and method of manufacturing same |
| 02/21/1984 | US4432833 Amine or quaternary ammonium salt of an oxyamine |
| 02/21/1984 | CA1162489A1 Drainage deck assembly for rotary vacuum drum filter |
| 02/21/1984 | CA1162358A1 Process and apparatus for the deresination and brightness improvement of cellulose pulp |
| 02/14/1984 | US4431481 Modified cellulosic fibers and method for preparation thereof |
| 02/14/1984 | US4431480 Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction |
| 02/14/1984 | US4431479 Process for improving and retaining pulp properties |
| 02/14/1984 | CA1162008A1 Production of chemical paper stock, and product thus made |
| 01/24/1984 | USRE31507 Method of treating papermaking white water |
| 01/24/1984 | US4427490 Delignification and bleaching process for lignocellulosic pulp with peroxide in the presence of metal additives |
| 01/24/1984 | US4427489 Mixing device and method |
| 01/19/1984 | WO1984000181A1 Ozone bleaching of cellulosic materials |
| 01/17/1984 | US4426258 Drying wood pulp in the presence of an alkali metal sulphite |
| 01/17/1984 | US4426256 Paper pulp and ozone |
| 01/17/1984 | US4426254 Ethylene oxide adduct, alpha-olefin sulfonate |
| 01/10/1984 | US4425186 Dimethylamide and cationic surfactant debonding compositions and the use thereof in the production of fluff pulp |
| 01/09/1984 | EP0088073A4 Method of treating pulp with plural oxygen stages. |
| 01/03/1984 | US4424247 Absorbent polymer-fiber composites and method for preparing the same |
| 01/03/1984 | CA1159604A1 Aqueous slurry or pasty fungicidal composition |
| 12/27/1983 | CA1159447A1 Stepped, axially fed, rotor and housing type continuous mixer |
| 12/27/1983 | CA1159203A1 Process for bleaching cellulose pulp by activation with no.sub.2 and oxygen and alkali-extraction at elevated temperature with cellulose degradation |
| 12/21/1983 | EP0096548A1 Two-stage chemical treatment of mechanical wood pulp |
| 12/21/1983 | EP0096460A2 Process for improving and retaining pulp properties |
| 12/20/1983 | US4421598 Serial application |
| 12/20/1983 | CA1158904A1 Method and means for use in the manufacture of fibre pulp |
| 12/13/1983 | US4420369 Bleaching, acidification, sludge |
| 12/06/1983 | US4419184 Method for control of chemicals during gas treatment of suspensions |
| 11/22/1983 | US4416548 Apparatus for gas or liquid admixture |
| 11/22/1983 | CA1157209A1 Process and apparatus for the deresination of cellulose pulp |
| 11/16/1983 | EP0094022A2 Rotor for a screening apparatus for the purification of pulp suspensions, particularly in the paper industry |
| 11/09/1983 | EP0093293A1 Stationary diffuser |
| 11/01/1983 | US4412888 Freezing-thawing process |
| 10/25/1983 | US4411737 Post-treatment with sodium sulfite, sodium sulfide and sodium carbonate |
| 10/18/1983 | US4410397 Delignification and bleaching process and solution for lignocellulosic pulp with peroxide in the presence of metal additives |
| 10/18/1983 | CA1155285A1 Process for inhibiting corrosion in titanium apparatus |
| 10/11/1983 | US4409066 Wood pulp |
| 10/05/1983 | EP0090588A1 Method for preparation of modified cellulosic fibres |
| 10/05/1983 | EP0089951A1 An improved process for displacement washing of porous media |
| 09/27/1983 | US4406736 Method of bleaching pulp with an aqueous solution of chlorine dioxide and chlorine followed by a chlorine solution |
| 09/27/1983 | US4406735 Process for alkaline oxygen gas bleaching of cellulose pulp |
| 09/27/1983 | CA1154205A1 Brightness improvement of ozone bleached pulps |