| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
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| 03/07/1995 | US5395765 Thermostable xylanase from a strain of Rhodothermus marinus |
| 03/02/1995 | WO1995006163A1 Method for reducing thermal and light-induced brightness reversion in lignin-containing pulps |
| 03/02/1995 | WO1995006157A1 Process for repulping wet strength paper |
| 03/02/1995 | WO1995006095A2 Phenolic complexing agents |
| 03/02/1995 | CA2178079A1 Process for repulping wet strength paper |
| 03/02/1995 | CA2170051A1 Method for reducing thermal and light-induced brightness reversion in lignin-containing pulps |
| 03/01/1995 | CN1099445A Ozone reactor process control |
| 03/01/1995 | CN1099444A Dissolved solids control in pulp production |
| 02/23/1995 | WO1995005504A1 Persulfate/metal mixtures for repulping and decolorization |
| 02/22/1995 | EP0639666A1 Quaternary compounds as brightness enhancers |
| 02/22/1995 | EP0639665A1 Phosphate-free reducing and bleaching agent |
| 02/22/1995 | EP0547100B1 Process for treatment of lignocellulosic pulp and apparatus for performance of the process |
| 02/21/1995 | US5391261 Method of bleaching de-inked pulp and removing the ink particles with steam |
| 02/21/1995 | CA2130378A1 Phosphate-free reduction bleaching formulation |
| 02/14/1995 | US5389201 Bleaching of kraft cellulosic pulp employing ozone and reduced consumption of chlorine containing bleaching agent |
| 02/09/1995 | WO1995004188A1 A method of integrating bleaching and recovery in the production of pulp |
| 02/09/1995 | WO1995004131A1 Microbe skb-1152 strain, method of separating the same, and method of bleaching pulp therewith |
| 02/09/1995 | CA2145507A1 Microbe skb-1152 strain, method of separating the same, and method of bleaching pulp therewith |
| 02/08/1995 | EP0637351A1 Wood-free pulp and white paper product. |
| 02/07/1995 | US5387317 Oxygen/ozone/peracetic aicd delignification and bleaching of cellulosic pulps |
| 02/07/1995 | CA1334240C Method of making chemi-mechanical pulp from hardwood |
| 02/02/1995 | WO1995003448A1 Method for ozone bleaching paper pulp |
| 02/02/1995 | CA2167605A1 Method for ozone bleaching paper pulp |
| 02/01/1995 | EP0515492B1 An apparatus for filtering suspensions and a method of operating the apparatus |
| 01/31/1995 | US5385641 Delignification of cellulosic raw materials using acetic acid, nitric acid and ozone |
| 01/31/1995 | US5385640 Using high shear on aqueous suspension |
| 01/31/1995 | CA1334145C Magnesium ions in a process for alkaline peroxide treatment of nonwoody lignocellulosic substrates |
| 01/30/1995 | CA2126886A1 Method for removing lignin and spent cooking chemicals from pulp |
| 01/28/1995 | CA2128832A1 Quaternary compounds as brightness enhancers |
| 01/28/1995 | CA2128814A1 Bleaching of kraft pulp with hydrosulfite |
| 01/28/1995 | CA2128805A1 Decolorization of waste paper with selected amines |
| 01/28/1995 | CA2128804A1 Decolorization of waste paper |
| 01/24/1995 | US5384014 Apparatus and method for thickening pulp and paper stock |
| 01/24/1995 | US5384012 Process for crosslinking of cellulosic fibers |
| 01/24/1995 | US5384011 Treating fibers with a chemical crosslinking agent, individualizing, drying and curing fibers, wherein drying and curing are carried out in two separate stages |
| 01/19/1995 | WO1995002086A2 Process for removing metal ions from liquids |
| 01/19/1995 | CA2166491A1 Process for removing metal ions from liquids |
| 01/18/1995 | EP0634521A1 Method for bleaching lignocellulose-containing fibres |
| 01/18/1995 | EP0634520A1 Process for bleaching paper pulp |
| 01/18/1995 | EP0633961A1 Method and device for treating pulp. |
| 01/18/1995 | EP0633932A1 DELIGNIFYING PREPARATION EXHIBITING $g(a)-L-ARABINOFURANOSIDASE ACTIVITY, PRODUCTION AND APPLICATION THEREOF |
| 01/17/1995 | US5382327 Apparatus for thickening pulp and paper stock |
| 01/17/1995 | US5382326 Ozone mixing test apparatus |
| 01/17/1995 | CA2127967A1 Method for bleaching lignocellulose-containing fibres |
| 01/17/1995 | CA2047082C Pulp press vat providing enhanced bottom access |
| 01/16/1995 | CA2127582A1 Process for bleaching paper pulp |
| 01/12/1995 | WO1995001426A1 Enhancement of laccase reactions |
| 01/12/1995 | CA2165283A1 Enhancement of laccase reactions |
| 01/10/1995 | US5380402 Reducing pulp mill liquid discharge |
| 01/05/1995 | WO1995000698A1 Hemicellulose recovery during kraft pulping |
| 01/05/1995 | WO1995000439A1 The use of dialdehydes and acetals thereof for inhibiting decomposition of peroxide in the production and the treatment of recycled fiber pulp and other fiber pulp |
| 01/04/1995 | EP0546045B1 Enzymes with xylanolytic activity |
| 01/03/1995 | US5378321 Varying annular fluidization zone for increased mixing efficiency in a medium consistency mixer |
| 12/28/1994 | EP0631010A1 Method for improving pulp washing efficiency |
| 12/28/1994 | EP0630435A1 Process for peroxide bleaching of mechanical pulp |
| 12/28/1994 | EP0483164B1 A ground fault circuit interrupter |
| 12/27/1994 | CA1333650C Peroxide bleaching method |
| 12/23/1994 | CA2124500A1 Method for improving pulp washing efficiency |
| 12/22/1994 | WO1994029515A1 Process in association with pulp bleaching |
| 12/22/1994 | WO1994029514A1 Ozone bleaching |
| 12/22/1994 | WO1994029513A1 Reactor for ozone bleaching |
| 12/22/1994 | WO1994029512A1 Method of bleaching pulp without using chlorine chemicals |
| 12/22/1994 | WO1994029511A1 Process in association with pulp bleaching |
| 12/22/1994 | WO1994029421A1 Use of glycine-n,n-diacetic acid derivatives as biodegradable complexing agents for alkaline earth and heavy metal ions, and method of preparing them |
| 12/21/1994 | EP0550547B1 Improved washing process |
| 12/20/1994 | US5374333 Air and water pollution control |
| 12/14/1994 | EP0628655A1 Bleaching aids |
| 12/14/1994 | EP0628080A1 Cloning and expression of xylanase b |
| 12/13/1994 | US5372679 Reactor system for treating cellulosic pulp at a constant upward flow velocity |
| 12/13/1994 | CA2062958C Filter cylinder |
| 12/13/1994 | CA1333457C Pump with separate fluidizing vaned shaft adjacent impeller |
| 12/08/1994 | WO1994028235A1 Method of processing recycled paper |
| 12/07/1994 | EP0627522A1 Improved process for the bleaching of mechanical pulps |
| 12/07/1994 | EP0627030A1 Modified digestion of paper pulp followed by ozone bleaching |
| 12/07/1994 | EP0627029A1 Pulp bleaching apparatus and method |
| 12/07/1994 | EP0500813B1 Process for bleaching of ligno-cellulosic material |
| 11/29/1994 | US5368688 Method for bleaching pulp with ozone with successive steps of lower consistency |
| 11/29/1994 | US5367894 Apparatus and method for washing cellulosic pulp |
| 11/24/1994 | WO1994023118A3 Bleaching recycled pulp with a reductive-oxidative sequence |
| 11/24/1994 | WO1994023117A3 Bleaching recycled pulp with ozone and hydrogen peroxide |
| 11/22/1994 | US5366593 Bleaching of lignocellulosic material with in-situ-generated dioxirane |
| 11/22/1994 | US5366591 Cyclic N-sulfatoimide |
| 11/22/1994 | US5366288 Apparatus for mixing a suspension of cellulosic fibrous material and fluid |
| 11/17/1994 | EP0428512B1 Ozone generation by corona discharge at elevated pressures |
| 11/15/1994 | US5364505 Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor |
| 11/15/1994 | US5364503 Nitric oxide treatment for ozone bleaching |
| 11/10/1994 | WO1994025669A1 Method for multistage bleaching of wood pulp |
| 11/10/1994 | WO1994025668A1 Dissolved solids control in pulp production |
| 11/10/1994 | CA2424682A1 Dissolved solids control in pulp production |
| 11/10/1994 | CA2159472A1 Method for multistage bleaching of wood pulp |
| 11/09/1994 | EP0623046A1 Separation device and process. |
| 11/09/1994 | EP0524220B1 A pulping process using cellulase |
| 11/02/1994 | EP0622491A2 Method for bleaching lignocellulose-containing pulp |
| 11/02/1994 | EP0621916A1 Method and apparatus for crosslinking individualized cellulose fibers |
| 11/02/1994 | EP0621915A1 Bleaching of chemical pulp. |
| 11/01/1994 | US5360515 Method for reducing thermal and light-induced brightness reversion in lignin-containing pulps |
| 11/01/1994 | US5360514 Treatment of bleach plant filtrations using a magnesium filter |
| 10/27/1994 | WO1994024362A1 Method of continuously cooking pulp |
| 10/26/1994 | CN1094106A Agglutinant for recovering alkali in paper making industry and its preparation |
| 10/25/1994 | US5358864 DNA which codes for fungal endoxylanase |