| Patents for D21C 3 - Pulping cellulose-containing materials (5,020) |
|---|
| 08/09/2006 | EP1311717B1 Alkaline pulp having low average degree of polymerization values and method of producing the same |
| 08/09/2006 | CN1814910A Method for making paper pulp by using hydrogen peroxide and alkali substance reaction together |
| 08/09/2006 | CN1268806C Non-black liquid discharging pulping process and special boiler thereof |
| 08/03/2006 | US20060169430 Catalytic hydrolysis of wood chips; impregnating with acid, such as nitric ,and heating; low temperature depolymerization |
| 08/02/2006 | EP1604060A4 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 08/02/2006 | CN1811056A Process of preparing chemical pulp with corn stalk peel |
| 08/02/2006 | CN1811055A Production process of bleached chemical pulp with hemp stalk core |
| 08/02/2006 | CN1267605C Pulp-making process using biological fermentation method |
| 08/01/2006 | USRE39208 comminuted cellulose fiber; vertical vessel; intake, discharging fluid flow; screen; reduce radial compression |
| 08/01/2006 | US7083704 Contacting cellulose and hemicellulose with an oxidant |
| 07/27/2006 | US20060162880 Vertical cooking vessels are used during the production of cellulose pulp in continuous cooking plants where the wood raw material and the cooking fluid are fed in at the top of the vessel and the cooked pulp is output continuously at the bottom of the digester |
| 07/26/2006 | CN1809630A Isolamento e uso de fungos deteriorados |
| 07/25/2006 | US7081183 Method of deresinating pulp using alkyl alcohol alkoxylate surfactants |
| 07/19/2006 | EP1680542A1 Methods for producing pulp and treating black liquor |
| 07/19/2006 | EP0963480B1 Method and device for the continuous cooking of chemical pulp |
| 07/19/2006 | CN1804209A Zero-discharge non-pollution combined production process for ecological paper pulp |
| 07/13/2006 | WO2006072653A1 Method for controlling a pulping process |
| 07/13/2006 | US20060151135 Method to determine pulping yield |
| 07/13/2006 | CA2592887A1 Method for controlling a pulping process |
| 07/12/2006 | EP1230456B1 Cellulose ethers and method of preparing the same |
| 07/12/2006 | CN1800487A Quick cold soaking and mechanical pulping process for grass family |
| 07/12/2006 | CN1263922C Bamboo fiber processing process |
| 07/11/2006 | US7074300 Soaking raw materials in sodium hydroxide; drainage; cooling, depressurization |
| 07/06/2006 | US20060144533 Method for the production of improved pulp |
| 07/06/2006 | US20060144532 Mercerization process of pulp to produce high porous material |
| 07/05/2006 | CN1796653A Quick cleaning pulping production equipment |
| 06/29/2006 | DE102004060283A1 Verfahren zur Gewinnung von Hemicellulosen aus lignocellulosischem Material A process for recovering hemicellulose from lignocellulosic material |
| 06/28/2006 | CN1793494A Process for producing mica pulp by mica paper waste material |
| 06/28/2006 | CN1793493A Environment protection pulping and papermaking method |
| 06/28/2006 | CN1793492A Method of pulping and papermaking |
| 06/28/2006 | CN1793491A Process for making pulp of supercritical ammine |
| 06/28/2006 | CN1793490A Process of preparing mulberry root bark pulp for producing dustless paper |
| 06/28/2006 | CN1793489A Tech. of producing mulberry root bark pulp for making viscose fibre |
| 06/28/2006 | CN1793487A Process of immersing rolling for pulping and special eqiupment thereof |
| 06/28/2006 | CN1261641C Method for separating hemicelluloses from biomass containing hemicelluloses and biomass and hemicelluloses obtained by said method |
| 06/28/2006 | CN1261640C Method for producing pulp by potassium containing compound as steaming preparation with cellulose containing raw material |
| 06/27/2006 | US7067444 Lyocell nonwoven fabric |
| 06/27/2006 | US7067244 Rapid triglyceride assay for use in pulp pitch control |
| 06/21/2006 | CN1260433C Producing method for bright yellow anti-myopia health-care paper |
| 06/20/2006 | CA2204050C Improved papermaking process |
| 06/15/2006 | US20060124266 Use of cyclodextrins for reducing deposits during paper production |
| 06/14/2006 | CN1786340A Corrugated paper produced by steam blasting straw to pulp and its production method |
| 06/07/2006 | CN1782221A Pulping paper-making method using hybrid chinese pennisetum as raw material |
| 06/06/2006 | US7056418 Cooking method for pulp |
| 06/01/2006 | US20060113048 Method for washing pulp in a bleaching line and a bleaching line |
| 05/31/2006 | CN1779069A Continuous immersion catalytic pyrolytic circulating pulp-making method by non-steaming and boiling biochemical solvent |
| 05/31/2006 | CN1779068A High-effective and low-consumption cleaning biological pulp-making process from wheatgrass |
| 05/26/2006 | WO2006053939A1 Improved methods and devices for the fabrication of cellulose |
| 05/18/2006 | US20060102300 Alkaline process for the manufacturing of pulp using alkali metaborate as buffering alkali |
| 05/17/2006 | CN1256482C Method for paper making from cotton stalk and equipment |
| 05/11/2006 | DE102004055123A1 Lightweight multi-purpose core structure has outer panels linked by cross-pieces at intervals in the same plane for e.g. boats, non-reflective structures and sailplanes |
| 05/10/2006 | EP1654415A1 Solvents for use in the treatment of lignin-containing materials |
| 05/10/2006 | EP1654307A1 Dissolution method for lignocellulosic materials |
| 05/10/2006 | CN1769585A Cotton rod caustic soda anthraquinone method boiling liquor for papermaking |
| 05/04/2006 | WO2006047713A2 Enzymatic-assisted chlorine dioxide treatment |
| 05/02/2006 | US7037405 production of texturized microcrystalline cellulose from raw pulp material by hydrolyzing cellulosic material with mineral acid, defibrillation of intermediate; can be used for surface treatment of paper or paper board or as starting material for production of paper or paperboard |
| 04/26/2006 | CN1253631C Heat treatment of polysulphide containing white liquor |
| 04/20/2006 | US20060084160 Enzyme multimer and process of producing same |
| 04/20/2006 | US20060081346 Peroxide bleaching of wood pulp |
| 04/20/2006 | US20060081345 Method for bleaching wood fibers |
| 04/19/2006 | EP1366231B1 Method for separating hemicelluloses from a biomass containing hemicelluloses |
| 04/19/2006 | CN1760445A Pulping technique for fibers in grass class |
| 04/19/2006 | CN1252349C Non-wood fibre displacement, continuous boiling method and apparatus therefor |
| 04/18/2006 | US7029553 for controlling pH, flocculating or precipitating materials, and replacing sulfuric acid, hydrochloric acid, and/or papermaking alum (aluminum sulfate) used in paper/pulping industry |
| 04/13/2006 | WO2006037860A1 Improved alkaline process and system for producing pulp |
| 04/13/2006 | CA2581923A1 Improved alkaline process and system for producing pulp |
| 04/12/2006 | CN1757822A Paper pulp production technology of physical degradation combined with biological degradation |
| 04/12/2006 | CN1250811C Four-stage alkaline peroxide mechanical pulping |
| 04/12/2006 | CN1250809C Method for delignifying lignocellulosic raw materials |
| 04/12/2006 | CN1250463C Composition and method for inhibiting calcium salt scale |
| 04/12/2006 | CN1250461C Composition and method for inhibiting calcium salt scale |
| 04/06/2006 | US20060070711 Low pH treatment of pulp in a bleach sequence to produce pulp having low D.P. and low copper number for use in lyocell manufacture |
| 04/06/2006 | US20060070710 Method and a device for preparing cellulose pulp |
| 04/06/2006 | US20060070709 Method for the continuous cooking of wood raw material for cellulose pulp |
| 04/06/2006 | US20060070295 Non-woody fiber mulching mat and production method thereof |
| 04/05/2006 | CN2769311Y Non-digesting biochemical solvent continuous soaking catalytic pyrolysis circulation pulping apparatus |
| 04/05/2006 | CN1756580A Foam control agent |
| 04/04/2006 | US7022827 Xylanase, microorganisms producing it, DNA molecules, methods for preparing this xylanase and uses of the latter |
| 03/23/2006 | WO2006029552A1 A method for manufacturing paper pulp, comprising the following steps of physical smashing and biological degrading |
| 03/23/2006 | US20060060316 Biopulp for non-woody fiber plants and biopulping method thereof |
| 03/23/2006 | US20060060315 Catalyzer for clean pulping and process for using the same |
| 03/22/2006 | CN2765930Y Pulp making apparatus of non-boiling , spiral chute type biochemical dissolvant continuous immersion and catalyzed cracking |
| 03/22/2006 | CN2765929Y Pulp making apparatus of non-boiling, scraper type biochemical dissolvant continuous immersion and catalyzed cracking |
| 03/09/2006 | CA2578139A1 Method and devices for the continuous processing of renewable raw materials |
| 03/08/2006 | CN1743546A Method of preparing paper pulp utilizing microwave technique |
| 03/08/2006 | CN1244734C Method of using thinning wood and other low specific gravity wood for leiser product |
| 03/02/2006 | WO2006021618A1 Method for manufacturing pulp from classified wood material |
| 02/28/2006 | US7005034 Method in connection with the production of mechanical pulp |
| 02/23/2006 | WO2006019342A1 Partial oxidation of cellulose spent pulping liquor |
| 02/23/2006 | US20060037723 Method for the feed of cellulose chips during the continuous cooking of cellulose |
| 02/22/2006 | CN1737254A Pulp and paper making method by continuously boiling hollow palm fruit string fiber |
| 02/22/2006 | CN1737253A Method and equipment for producing paper pulp by gases mixed explosion |
| 02/22/2006 | CN1737252A Yellow willow alkaline hydrogen peroxide pulp making method |
| 02/22/2006 | CN1243150C Pulping process for corn stover and other nonwood fibrous materials |
| 02/16/2006 | WO2006016596A1 Production of fibrous ingredient from lignocellulosic material and use of the same |
| 02/14/2006 | US6998015 Adding a sulfite reducing agent, especially sodium sulphite, sodium bisulphite, sodium metabisulphite, sodium hydrosulphite or formamidine sulfinic acid to reduce quinones to hydroquinones |
| 02/08/2006 | CN1240900C Biological enzyme deinking method for waste paper |
| 02/08/2006 | CN1240899C Method for preparing high-homogeneous cellulose using overcooled liquid phase N-methylmorpholine-N-oxide hydrate solvent |
| 02/07/2006 | CA2193448C Process for the production of cellulose |
| 02/02/2006 | WO2006012286A1 Methods to decrease scaling in digester systems |