| Patents for D21C 5 - Other processes for obtaining cellulose, e.g. cooking cotton linters (5,432) |
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| 02/28/2007 | CN1302175C Method for separating and purifying Nano bacteria cellulose |
| 02/27/2007 | US7183090 Laccase enzyme and the gene encoding the enzyme |
| 02/27/2007 | CA2215297C Recycling of mineral fillers from the residue of a paper deinking plant |
| 02/15/2007 | WO2007018368A1 Flotation-deinking method with improving yield for waste paper |
| 02/15/2007 | WO2007017889A1 A process for enzymatic deinking of printed papers |
| 02/14/2007 | EP1752525A1 Amylase variants |
| 02/14/2007 | EP1751347A1 New composition and process for the treatment of fibre material |
| 02/14/2007 | EP1328645B1 Mutant trichoderma reesei egiii cellulases, dna encoding such egiii compositions and methods for obtaining same |
| 02/13/2007 | CA2235229C Method for deinking |
| 02/06/2007 | US7172148 Grooved pyramid disperger plate |
| 01/31/2007 | CN1297708C Black liquid with washing graded cooking process production in ball |
| 01/31/2007 | CN1297707C Method for one-step separation of wood-grass fiber |
| 01/30/2007 | US7169257 Method of deinking waste paper using a reduced alkali system |
| 01/30/2007 | CA2210903C Use of hydrophilic dispersion polymers for coated broke treatment |
| 01/30/2007 | CA2204657C Process for the preparation of absorbent materials |
| 01/25/2007 | DE102005034413A1 Decreasing the amount of 'stickies' (especially polyvinyl acetate) in scrap paper suspensions involves addition of an esterase and a nonionic and non-polymeric surfactant |
| 01/24/2007 | EP1623067B1 Use of water-soluble crosslinked cationic polymers for controlling deposition of pitch and stickies in papermaking |
| 01/24/2007 | CN1902359A Deinking blends for use in reduced alkali systems |
| 01/24/2007 | CN1900416A Used paper processing apparatus |
| 01/23/2007 | CA2264034C Method of agglomerating stickies in an aqueous slurry of wastepaper |
| 01/20/2007 | CA2552176A1 Used paper processing apparatus |
| 01/17/2007 | EP1743066A2 Oxidative, reductive, hydrolytic and other enzymatic systems for oxidizing, reducing, coating, coupling or cross-linking natural and artificial fiber materials, plastic materials or other natural or artificial monomer to polymer materials |
| 01/17/2007 | CN1898436A Method for reducing brightness reversion of mechanical pulps and high-yield chemical pulps |
| 01/11/2007 | US20070006983 Method for producing fine circuit lines and conductive board |
| 01/10/2007 | EP1740763A2 Method for controlling a bleaching process for waste paper treatment and bleaching device for carrying out said method |
| 01/09/2007 | CA2144025C Process for deinking pulp and device for applying said process |
| 01/03/2007 | CN1293261C Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof |
| 12/28/2006 | DE102005029500A1 Industrial/incinerator ash or chemically/physically modified ash for alkalization of solid, liquid or gaseous systems and bleaching, buffering, and adsorbing of components of acid and gaseous systems in liquid or solid phase |
| 12/27/2006 | EP1291431B1 Endoglucanase nce5 |
| 12/21/2006 | WO2006134235A1 Flotation cell |
| 12/20/2006 | CN1291102C Biological pulping method for non-wood fiber plant |
| 12/19/2006 | CA2128050C Xylanase derived from a bacillus species, expression vectors for such xylanase and other proteins, host organisms therefor and use thereof |
| 12/14/2006 | WO2006076977A3 System and method for producing a fiber web |
| 12/13/2006 | EP1730348A2 A process for the treatment of fibre material and new composition |
| 12/13/2006 | EP0851783B1 Mixtures of aliphatic sulfonates, properties and applications thereof |
| 12/13/2006 | CN1876958A Method for producing kraft using American waste paper |
| 12/13/2006 | CN1289752C Method of separating colouring agents from recycled fibre material |
| 12/12/2006 | CA2250134C Compositions and methods for inhibiting the deposition of organic contaminants in pulp and papermaking systems |
| 12/07/2006 | WO2006128950A1 Process for producing mechanical pulp suitable for paper or cardboard making |
| 12/07/2006 | WO2005021714A3 Laccases, nucleic acids encoding them and methods for making and using them |
| 12/07/2006 | DE10236123B4 Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension A method for removing anionic trash from an aqueous paper fiber suspension |
| 12/07/2006 | CA2607178A1 Process for producing mechanical pulp suitable for paper or cardboard making |
| 12/06/2006 | CN1875145A Method for regulating whiteness for removal of printing ink in deinking installations and deinking installation comprising a flotation cell for removal of printing ink |
| 11/30/2006 | CA2826916A1 Chlorine dioxide treatment compositions and processes |
| 11/29/2006 | EP1726644A1 Cellulase variants |
| 11/28/2006 | CA2143985C Cationic and anionic polyelectrolytes for enhancing the freeness of paper pulp |
| 11/23/2006 | WO2006123996A1 Process for deinking recycled fibers and use of an acid in deinking |
| 11/23/2006 | US20060260772 Process for biological deinking of office waste paper |
| 11/22/2006 | CN2839341Y Micro-turbulent efficient sizing and ink floatation tank |
| 11/22/2006 | CN2839340Y Heat dispersing machine |
| 11/22/2006 | CN1865584A Process for vertically digesting bagasse pulp by anthraquinone sulfate process |
| 11/21/2006 | US7138263 Endoglucanase enzyme NCE5 and cellulase preparations containing the same |
| 11/21/2006 | US7138261 An endoglucanase (especially derived from Zygomycetes) and a reducing agent; treating a cellulose fabric with the cellulase preparation to improve a property; deinking waste paper; improving freeness of paper pulp |
| 11/16/2006 | US20060254731 Recycling of lignocellulose based board materials |
| 11/15/2006 | EP1721933A1 Composition containing amphoteric water-soluble polymer |
| 11/14/2006 | US7135184 strain of the genus Flammulina; obtained by culturing the strain at a pH value exceeding 7; use in staining such as dyeing fibers or hair; activity for bleaching pulp or fibers, removing phenol compounds from liquid wastes, degrading endocrine disruptors, producing phenolic resins; F. velutipes strain |
| 11/08/2006 | CN1858344A Pulping method for high grade bleached cotton starch plate |
| 11/02/2006 | US20060246570 Isolation and use of decay fungi |
| 11/02/2006 | US20060243403 Microwave pretreatment of logs for use in making paper and other wood products |
| 11/01/2006 | CN2832884Y Non-chemical-machinery straw pulping system |
| 11/01/2006 | CN1854388A The production method and pulp maked bamboos |
| 11/01/2006 | CN1282690C Application of pore fungus laccase |
| 10/26/2006 | WO2006113896A1 Removal of organic deposits from recycled fibers used for producing paper |
| 10/26/2006 | WO2006111607A1 An apparatus for distruibuting a pulp flow |
| 10/26/2006 | WO2006111604A1 Method for separating the main components of lignocellulosic materials |
| 10/26/2006 | CA2603645A1 Method for separating the main components of lignocellulosic materials |
| 10/25/2006 | CN1851116A Aeration type convection mixing ink-removing flotation tank |
| 10/25/2006 | CN1851115A Method for direct manufacturing regenerated bamboo fiber from papermaking-level bamboo pulp dregs |
| 10/25/2006 | CN1851114A Separation joint-product pulp-making method |
| 10/18/2006 | CN1280484C Method for making pulp using feather as raw material |
| 10/17/2006 | US7122181 Gene therapy; eye diseases |
| 10/12/2006 | DE102005016192A1 Verfahren zum Auflösen und Reinigen von störstoffhaltigen Papierrohrstoffen Method of dissolving and cleaning of paper stock containing foreign substances tube |
| 10/11/2006 | EP1088080B1 Recombinant production of cellulase from actinomycetes |
| 10/11/2006 | CN1844574A Process for repairing ancient books, paintings and calligraphy and paper literatures by using paper pulp |
| 10/04/2006 | EP1706536A1 Method for reducing brightness reversion of mechanical pulps and high-yield chemical pulps |
| 09/28/2006 | US20060213629 Impregnation of chips with an acid liquid prior to a sulphate pulping process |
| 09/27/2006 | CN1839228A Process for producing recycled pulp, method of modifying pulp fiber surface and contaminant, and pulp treating apparatus |
| 09/27/2006 | CN1837460A Method for quickly extracting bacteria cellulose from mother liquor |
| 09/21/2006 | WO2006060784A3 Printing ink and coating compositions containing starch |
| 09/20/2006 | CN1836069A Recycling of lignocellulose based board materials |
| 09/19/2006 | US7109013 Cellulase preparation containing nonionic surfactant and method of treating fiber |
| 09/14/2006 | WO2006095349A1 Method of recycling fibers from sewage sludge and means thereof |
| 09/13/2006 | CN1831241A High-temp. hot-pressing type bedding paper and its prodn. method |
| 09/13/2006 | CN1831239A Method and equipment for extracting fiber from stalks |
| 09/13/2006 | CN1274904C Whole black liqucd large liqucd rate cercal grass cooking technology with digester |
| 09/06/2006 | CN1829840A Chemimechanical desilication of nonwood plant materials |
| 09/06/2006 | CN1273683C Preparation process for high concentration black liquor in vertical kettle and products thereof |
| 08/31/2006 | WO2006089395A1 Near-neutral deinking of recycled pulp using phosphines or phosphonium salts |
| 08/31/2006 | US20060191655 Obtaining furnish of scrap fibers wherein fibers are opened and cut, including scrap fiber component and cellulosic component, processing fiber furnish to form intermediate web, saturating web with binding agent to form composite web, drying |
| 08/31/2006 | US20060191651 Storing/treating cellulose pulp of medium consistancy for papermaking by inserting a pipe in the conical bottom inlet which can be withdrawn when converting the tower back to the original up-flow; pushing up or pulling down the insertion pipe can adjust the stationary stagnation zone; antifouling agent |
| 08/30/2006 | EP1694913A1 Bleached and unbleached fibrous paper pulps and a method for producing the same |
| 08/30/2006 | EP1694906A1 Deinking blends for use in reduced alkali systems |
| 08/30/2006 | EP1454008B1 Method of separating colouring agents, particularly printing ink,from recycled fibre material |
| 08/30/2006 | EP0889957B1 Subtilisin dimer with improved activity and process of producing same |
| 08/30/2006 | CN1824888A Method for producing paper pulp with waste toilet paper |
| 08/29/2006 | US7097738 cooking a fibre-based raw material in organic acids including furfural to produce a pulp; furfural obtained as a reaction product can also be utilized in the cooking; improved pulp yield |
| 08/16/2006 | EP1689930A1 Deinking system for carbonate pulping |
| 08/16/2006 | CN1270023C Pulp-making method of raising fiber-recovering quality |
| 08/10/2006 | WO2006081845A1 Use of arabinoxylanns in the form of additives for producing paper |
| 08/10/2006 | DE10256519B4 Verfahren zur Dispergierung eines aus bedrucktem Papier gewonnenen Papierfaserstoffes A method for dispersing a paper pulp obtained from printed paper |