| Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432) |
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| 02/28/2013 | CA2839129A1 Method for increasing the advantages of strength aids in the production of paper and paperboard |
| 02/27/2013 | CN202755248U Open type flotation deinking machine |
| 02/27/2013 | CN202755247U Closed type flotation stripping machine |
| 02/27/2013 | CN202755246U Flotation stripping machine |
| 02/27/2013 | CN102943414A High-water repellency high-photopermeability biodegradable cotton agricultural thin film |
| 02/27/2013 | CN102943404A Black liquor treatment method combining lignin extraction and synthesis gas production |
| 02/27/2013 | CN102943403A Wood pulp denaturalization production process for producing viscose fibers |
| 02/27/2013 | CN102020788B Cellulose pulp and production method thereof |
| 02/26/2013 | CA2564015C New composition and process for the treatment of fibre material |
| 02/21/2013 | WO2013024862A1 Method for producing papermaking feedstock, papermaking feedstock obtained thereby, and heat-resistant electrical insulation sheet material using the feedstock |
| 02/20/2013 | CN102936867A Preparation process of fuel cell electrode porous diffusion layer material carbon fiber paper |
| 02/20/2013 | CN102212971B Method for processing straw through plasma |
| 02/14/2013 | US20130037229 Polyester surfactants for deinking |
| 02/13/2013 | EP2556190A1 Acetic acid based refining process of biomass |
| 02/13/2013 | CN102926259A Method for improving removal effect of ink in office waste paper pulp |
| 02/13/2013 | CN102926258A Method for producing insulation paper from wastepaper |
| 02/13/2013 | CN102926257A Method for waste paper deinking by using biological enzyme |
| 02/13/2013 | CN102926256A Denatured production process of bamboo pulp for producing viscose fiber |
| 02/13/2013 | CN102926255A Method for treating lignocellulose |
| 02/13/2013 | CN102926250A Novel technology for papermaking through waste paper with low cost and high purity |
| 02/13/2013 | CN102174758B Method for preparing packaging material |
| 02/06/2013 | EP2554667A1 Novel cellulase gene |
| 02/06/2013 | CN202717997U Multi-layer aeration device of deinking machine |
| 02/06/2013 | CN202717996U Ink collecting device of deinking machine |
| 02/06/2013 | CN102912668A Method for performing dispersed pulping and flow machining by using combination-type straw pretreatment vehicle |
| 02/06/2013 | CN101184890B Removal of organic deposits from recycled fibers used for producing paper |
| 01/31/2013 | DE102012011776A1 Pulper mit einer Welle und Verfahren zur Behandlung von Verbundmaterialien Pulper with a shaft and methods for the treatment of composite materials |
| 01/30/2013 | CN202705774U Device for catalytic pulping of low-boiling point solvent |
| 01/30/2013 | CN202700424U Mixing machine with bearing protection device |
| 01/30/2013 | CN102366756B Method for recycling papermaking waste residues |
| 01/30/2013 | CN101370980B Use of modified inorganic particles in deinking |
| 01/30/2013 | CN101160431B Method for separating the main components of lignocellulosic materials |
| 01/23/2013 | EP2549012A1 Process for treating paper with wet strength |
| 01/23/2013 | EP2547823A2 Process for producing modified cellulose pulps, cellulose pulp thus obtained and use of biopolymer for producing cellulose pulps |
| 01/23/2013 | CN102888774A Technology for preparing paper packaging material from recycled waste paper |
| 01/23/2013 | CN102888373A Compound bacteria for biological bacteria liquid pulping and application of compound bacteria |
| 01/23/2013 | CN102888371A Pseudomonas fluorescens and method for preparing cellulose used for preparing additive |
| 01/23/2013 | CN102888370A Bacillus and method for preparing cellulose for additive using same |
| 01/23/2013 | CN102888369A Rheinheimera tangshanensis and method for preparing cellulose for additive using same |
| 01/23/2013 | CN102888367A Bacillus and biological bacteria liquid pulping method thereof |
| 01/23/2013 | CN102888365A Acinetobacter lwoffii and biological bacteria liquid pulping method thereof |
| 01/23/2013 | CN102888362A Acinetobacter lwoffii and method for preparing cellulose for additive using same |
| 01/23/2013 | CN102888361A Rheinheimera tangshanensis and biological bacteria liquid pulping method thereof |
| 01/23/2013 | CN102888360A Bio-bacteria and bio-bacterial solution pulping method |
| 01/23/2013 | CN102888359A Biological bacteria and method for preparing cellulose for additive using same |
| 01/23/2013 | CN102888358A Pseudomonas fluorescens and biological bacteria liquid pulping method |
| 01/23/2013 | CN102888344A Mixed bacteria for bio-bacterial solution pulping and use thereof |
| 01/23/2013 | CN102888343A Compound bacteria for biological bacteria liquid pulping and application of compound bacteria |
| 01/23/2013 | CN102888342A Mixed bacteria and use thereof in cellulose used for preparing additives |
| 01/23/2013 | CN102888341A Compound bacteria and application in biological bacteria liquid pulping technology of compound bacteria |
| 01/23/2013 | CN102888339A Biological flora and biological bacterium liquid pulping method |
| 01/23/2013 | CN102888338A Biological flora and method for preparing cellulose for additive through same |
| 01/23/2013 | CN102337691B Method for improving performance of waste newspaper deinking pulp |
| 01/22/2013 | CA2523736C Method for enzymatic deinking of waste papers, the waste papers so treated and the treating composition |
| 01/16/2013 | CN102884182A Xylanase variants and polynucleotides encoding same |
| 01/16/2013 | CN102877361A Silicon retention agent for pulping by grass materials and cooking method |
| 01/16/2013 | CN102877350A Black liquor treatment method by lignin extraction and alkali recovery |
| 01/16/2013 | CN102877349A Circular treatment method of acid filtrate from pulping black liquor |
| 01/16/2013 | CN102877344A Method for industrialized continuous production of bio-pulping |
| 01/16/2013 | CN102877343A Improved technology for producing refined cotton |
| 01/16/2013 | CN102876602A Composite bacteria for preparing pulp by using biological bacterium liquid and application of composite bacteria |
| 01/16/2013 | CN102876575A Compound bacterium used for pulping biological bacterium fluid and application of compound bacterium |
| 01/10/2013 | WO2013004377A2 Compositions comprising cellobiose dehydrogenase from pycnoporus cinnabarinus and their use for the degradation of lignocellulosic biomass |
| 01/09/2013 | EP2542673A2 Xylanase variants and polynucleotides encoding same |
| 01/09/2013 | CN102869830A Fibrous composition for paper and card production |
| 01/09/2013 | CN102864673A Ink discharge device for flotation deinking machine |
| 01/09/2013 | CN102863544A Binding agent with viscosity of 50-80 mPa.s, and preparation method and application thereof |
| 01/03/2013 | DE112010003263T5 Druckfarbenentfernungsvorrichtung, Vorrichtung zum Erneuern von Abfallpapier und Verfahren zum Benutzen einer Druckfarbenentfernungsvorrichtung Inking apparatus, apparatus for renewal of waste paper and method of using an ink remover |
| 01/03/2013 | DE102012210988A1 Recycling device for waste paper, has deinking device, which disconnects pressure color components by distributing air into offset with deinking agent added waste paper cellulose solution |
| 01/02/2013 | CN102852017A 磁力油墨去除机 Magnetic ink removal machine |
| 01/02/2013 | CN102852016A Process for preparing water-soluble cellulose through negative-pressure mass transfer and diffusion dialysis membrane separation technology |
| 12/27/2012 | US20120328758 Enhanced Fiber Additive; and Use |
| 12/27/2012 | DE112010003276T5 Deinking-Einrichtung, Einrichtung zum Recyceln von Altpapier und Verfahren zur Verwendung der Deinking-Einrichtung Deinking equipment, equipment for the recycling of waste paper and method of using the deinking equipment |
| 12/26/2012 | EP2536543A1 Insulating materials and methods for the production thereof |
| 12/26/2012 | EP2141281B1 Flotation apparatus |
| 12/25/2012 | US8337978 Recording material containing nonionic surfactants |
| 12/20/2012 | DE112011100412T5 Vorrichtung zum verarbeiten von altpapier Apparatus for processing of waste paper |
| 12/20/2012 | DE112010004352T5 Vorrichtung zum Aufbereiten von Druckfarbenentfernungsabwässern, Druckfarbenentfernungssystem und Verfahren zum Aufbereiten von Druckfarbenentfernungsabwässern An apparatus for processing de-inking waste water, ink removal system and method for treating deinking effluents |
| 12/19/2012 | EP2534295A1 Method for removing ink from paper |
| 12/18/2012 | CA2524205C Use of water-soluble crosslinked cationic polymers for controlling deposition of pitch and stickies in papermaking |
| 12/12/2012 | CN102817276A Method for preparing cellulose nano-grade filament film by using recovered waste paper |
| 12/12/2012 | CN102817265A Preparation method of arc-shaped microcrystalline cellulose |
| 12/12/2012 | CN102817264A Method for manufacturing paper pulp by using fresh cow dung |
| 12/12/2012 | CN102816749A Novel xylanase, and coding gene and application thereof |
| 12/12/2012 | CN102174757B Preparation method of cotton pulp for high-strength paper |
| 12/12/2012 | CN102167749B Method for preparing high-substitution and high-viscosity sodium carboxymethyl cellulose from bagasse |
| 12/05/2012 | CN102051833B Preparation method of straw matter mechanical pulp |
| 11/28/2012 | CN102803603A Deinking process |
| 11/28/2012 | CN102797187A Method for extracting cellulose in biomass raw material by utilizing ionic liquid |
| 11/28/2012 | CN102796768A High value integration utilization method of maize straw |
| 11/28/2012 | CN102796048A Preparation method of ionic liquid for efficiently extracting cellulose and application thereof |
| 11/27/2012 | US8317974 Deinking a cellulosic substrate using magnesium hydroxide |
| 11/27/2012 | US8317973 Polyester surfactants for deinking |
| 11/21/2012 | CN102791923A Process for producing differentiated cellulose fibers comprising an enzymatic treatment in association with an acid step |
| 11/21/2012 | CN102787520A Preparation of biodegradable new materials by using vegetable fiber paper and preparation method thereof |
| 11/21/2012 | CN102787519A Method for preparing soluble kelp cellulose |
| 11/21/2012 | CN102787518A Method for preparing cotton cellulose nano fibril film |
| 11/21/2012 | CN102787380A Method for preparing straw regenerated cellulose fiber |
| 11/21/2012 | CN102174755B Boiling assistant for preparing high polymerised pulp |
| 11/21/2012 | CN101225618B Pulp concentration adjusting method and device for used paper recycling apparatus |