| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
|---|
| 05/16/2012 | EP2452013A1 Process for producing microfibrillated cellulose |
| 05/16/2012 | CN102459754A Modified cellulose from chemical kraft fiber and methods of making and using same |
| 05/16/2012 | CN102454136A Production process of paper for printer |
| 05/16/2012 | CN102454133A Pulping agent and method for applying same to production |
| 05/16/2012 | CN102454129A Fiber self-coupled oxidative decomposition cleaning papermaking method |
| 05/10/2012 | WO2012060672A2 Bleached wood powder, a production method for bleached wood powder, paper which uses the same and a production method for the same |
| 05/09/2012 | EP2450735A2 Image presentation and micro-optic security system |
| 05/09/2012 | CN102449235A A device for preventing the rewetting of pulp |
| 05/09/2012 | CN102449234A Process for the bleaching of mechanical paper pulp |
| 05/09/2012 | CN102444047A Method for preparing high-viscosity bagasse pulp by using oxygen and alkali cooking and ozone bleaching |
| 05/09/2012 | CN102444045A Novel clean energy-saving process for pulping by taking fiber plant as raw material |
| 05/09/2012 | CN102444044A Retinervus luffae fructus pulp for manufacturing viscose fiber and preparation method thereof |
| 05/08/2012 | CA2507798C Sealing device |
| 05/03/2012 | WO2012056108A1 Deaeration of stock in a pulp drying machine |
| 05/02/2012 | EP1827645B1 A modified sorptive lignocellulosic fibre material, preparation and use thereof and method for decontamination of aqueous media |
| 05/02/2012 | CN102433788A Mesh tape deviation rectification apparatus for double-mesh dehydrator |
| 05/02/2012 | CN102433787A Two-step color-stripping and bleaching technology of regenerated cotton fiber |
| 05/02/2012 | CN101451312B Method for preparing bleached chemical pulp by using grass type plants as raw materials |
| 05/01/2012 | US8168072 Control of development of biofilms in industrial process water |
| 05/01/2012 | US8168041 Device for diluting shredded cellulosic particles/chips |
| 04/26/2012 | WO2012052617A1 Processing of wood fibre fraction |
| 04/26/2012 | US20120097350 Alkaline peroxide treatment of rejects in an intergrated neutral-alkaline paper mill |
| 04/26/2012 | DE102011084012A1 Method for drying pulp in pulp drying machine, involves drying pulp with forming section, press section and drying section by producing web having specific basis weight |
| 04/25/2012 | EP2443282A1 Method for reducing deposits in the drying section in the manufacture of paper, paperboard, and cardboard |
| 04/25/2012 | EP2443280A1 Alkaline peroxide treatment of rejects in an integrated neutral-alkaline paper mill |
| 04/25/2012 | EP1907623B1 Ligno cellulosic materials and the products made therefrom |
| 04/25/2012 | EP1390411B1 Pulp treatment and process |
| 04/25/2012 | CN102428040A Composition for inhibiting calcium salt scale formation |
| 04/25/2012 | CN102422841A 反应型二氧化氯粉剂及其制备方法 Reactive chlorine dioxide powder and its preparation method |
| 04/25/2012 | CN101680171B 用于洗涤和脱水纤维素纸浆的装置 Washing and dewatering cellulose pulp means for |
| 04/18/2012 | EP2440644A1 Gentle bleaching agent |
| 04/18/2012 | EP2022887B1 Process for producing bleached pulp |
| 04/18/2012 | CN102418297A 一种造纸浆料浓缩装置 A slurry concentrator Paper |
| 04/18/2012 | CN101548045B 在制浆和造纸过程中的树脂和胶粘物控制 In the pulp and paper process pitch and stickies control |
| 04/17/2012 | US8157956 Cylindrical bearing for pressure diffuser and associated method |
| 04/12/2012 | WO2012046184A1 Process for the drying of pulp and a suction roll used for the drying of pulp |
| 04/12/2012 | WO2012027272A3 Method of treating paper forming wire surface |
| 04/11/2012 | EP1969175B1 A novel catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein |
| 04/10/2012 | US8152956 Use of chemical pulp mill steam stripper off gases condensate as reducing agent in chlorine dioxide production |
| 04/05/2012 | WO2012042146A1 Method for refining, in an enzymatic medium, paper pulp comprising cellulose fibers in order to reduce the length of said fibers |
| 04/05/2012 | WO2012040908A1 Deinking compositions and methods of use |
| 04/05/2012 | DE102010041730A1 Maschine für die Entwässerung von Zellstoff Machine for the drainage of pulp |
| 04/04/2012 | EP2435630A1 A device for preventing the rewetting of pulp |
| 04/04/2012 | EP2435629A2 Modified cellulose from chemical kraft fiber and methods of making and using the same |
| 04/04/2012 | EP2435628A1 Process for the bleaching of mechanical paper pulp |
| 04/04/2012 | EP2059635B1 Methods to control lipophilic extractives in acacia wood pulp and fiber |
| 04/04/2012 | EP1139961B1 Absorbent structures of chemically treated cellulose fibers |
| 04/04/2012 | CN202181477U 一种洗浆机 One kind of washer |
| 04/04/2012 | CN202181475U 新型溶解浆生产装置 The new dissolving pulp production plant |
| 04/04/2012 | CN101634117B 一种以芦苇为原料制备纸浆板的方法 A kind of reed pulp was prepared from the plate method |
| 04/03/2012 | US8148104 Use in treatment of paper pulp or animal feeds; enzyme is active over a wide range of temperature and of basic and acid pH |
| 04/03/2012 | CA2523265C Superabsorbent cellulosic fiber and method of making same |
| 03/29/2012 | WO2012039668A1 A paper or paperboard product and a process for production of a paper or paperboard product |
| 03/28/2012 | CN102392380A Chlorine dioxide treatment combination and method thereof |
| 03/28/2012 | CN102392007A High temperature alkaline xylanase XYN10A, gene thereof and application thereof |
| 03/28/2012 | CN101374994B Method and arrangement for feeding chemicals into a process stream |
| 03/22/2012 | WO2012037024A2 High brightness pulps from lignin rich waste papers |
| 03/22/2012 | WO2012034997A1 Modified cellulose fibres |
| 03/22/2012 | US20120067532 High Brightness Pulps From Lignin Rich Waste Papers |
| 03/22/2012 | CA2811206A1 Thermophilic mutants of trichoderma reesei endoglucanase i |
| 03/22/2012 | CA2808240A1 High brightness pulps from lignin rich waste papers |
| 03/21/2012 | EP1552055B1 Method of dewatering pulp |
| 03/21/2012 | CN102388178A Press for dewatering suspension |
| 03/21/2012 | CN102388177A Pulping process for quality protection including methods for hemicellulose extraction and treatment of hemicellulose -extracted lignocellulosic materials |
| 03/21/2012 | CN102383332A Cotton pulp with high degree of polymerization and production method thereof |
| 03/21/2012 | CN101155957B Method of recycling fibers from sewage sludge and means thereof |
| 03/15/2012 | WO2012033461A1 Apparatus and method for introducing a first fluid into the flow path of a second fluid and use of such an apparatus |
| 03/15/2012 | US20120061043 Process for the bleaching of mechanical paper pulp |
| 03/15/2012 | US20120061042 Method and arrangement for wash after completed digestion in a continuous digester for the production of cellulose pulp |
| 03/15/2012 | CA2810367A1 Apparatus and method for introducing a first fluid into the flow path of a second fluid and use of such an apparatus |
| 03/14/2012 | EP2428610A1 Modified cellulose fibres |
| 03/14/2012 | CN102378839A Process for the production of nano-fibrillar cellulose suspensions |
| 03/14/2012 | CN102378777A Process for the production of nano-fibrillar cellulose gels |
| 03/14/2012 | CN102182094B Salix mongolica sulfate pulp bleaching process |
| 03/13/2012 | US8133352 Washing the pulps in hot aqueous solution and agitating to remove chemical oxygen demand (COD) components; low COD pulp; building materials |
| 03/08/2012 | WO2012028800A1 Process for the delignification and bleaching of paper pulp using active hydrogen peroxide |
| 03/07/2012 | EP2147148B1 Apparatus and method for washing pulp in a rotatable drum |
| 03/06/2012 | US8128784 Bleaching process of chemical pulp |
| 03/01/2012 | WO2012027272A2 Method of treating paper forming wire surface |
| 03/01/2012 | WO2012025538A1 Process for the treatment of a paper pulp |
| 02/29/2012 | EP1294980B1 Aldehyde donors for stabilizing peroxides in papermaking applications |
| 02/29/2012 | CN102365405A Method and arrangement for wash after completed digestion in a continuous digester for the production of cellulose pulp |
| 02/29/2012 | CN102363929A Method for improving hydrogen peroxide bleaching efficiency of paper pulp |
| 02/29/2012 | CN102363928A Clean pulp preparation process using reaction of KOH and H2O2 |
| 02/23/2012 | WO2012022840A1 Method for removing hexenuronic acids |
| 02/23/2012 | WO2012022451A1 Emulsions for removal and prevention of deposits |
| 02/23/2012 | WO2012022421A1 Method for the production of oxidized cellulose fibers, oxidized cellulose fiber sheet materials or oxidized cellulose nonwovens, and use thereof |
| 02/23/2012 | DE102010039650A1 Scheibenfilter Disc Filters |
| 02/23/2012 | CA2808967A1 Emulsions for removal and prevention of deposits |
| 02/22/2012 | EP2419562A1 A doctor blade arrangement and method in fibre processing |
| 02/22/2012 | CN202148463U 一种双辊洗浆机的转辊密封装置 A twin-roll rollers of the washer seal means |
| 02/22/2012 | CN202148462U 一种双辊洗浆机的进料布浆螺旋 A dual roller washer cloth slurry feed screw |
| 02/22/2012 | CN202148461U 一种双辊洗浆机的出料碎浆螺旋 A dual roller washers pulper discharge screw |
| 02/22/2012 | CN202148460U 一种双辊洗浆机的挤压装置 A twin-roll extrusion apparatus washer |
| 02/21/2012 | CA2455646C Control of development of biofilms in industrial process water |
| 02/15/2012 | EP1893803B9 Method for treating a process material during the production of paper, card, or cardboard |
| 02/15/2012 | CN102352574A Medium-concentration paper pulp mixing device |
| 02/15/2012 | CN102352572A Preparation method for bamboo wood dissolving pulp |
| 02/15/2012 | CN101666054B 一种生产生活用纸的方法 A method of producing tissue methods |
| 02/08/2012 | EP2414584A1 Process for the production of nano-fibrillar cellulose suspensions |