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| Number | Title | Issue Date |
| 7384502 | Process for impregnating, refining, and bleaching wood chips having low bleachability to prepare mechanical pulps having high brightness Wood chips having low bleachability are impregnated with a chemical liquor at a pH range of 7-12 in aqueous solution and the chemical liquor from the impregnated chips is drained, whereby extractives contained in the chips and consuming bleaching agents can be remov... | 06/10/2008 |
| 7285184 | Cellulosic fiber pulp and highly porous paper products produced therefrom A cellulosic pulp, method of producing the pulp, and associated paper product produced therefrom produced by providing mercerized cellulosic fibers and depositing a hemicellulose coating upon the mercerized fibers. The hemicellulose is deposited upon the fibers by c... | 10/23/2007 |
| 7250382 | Water-disintegratable sheet and manufacturing method thereof Disclosed is a water disintegratable sheet including bast/leaf fibers and at least one kind of primary fibers. The bast/leaf fibers have a Canadian Standard freeness value of at most 600 milliliter and occupy 2 to 75% by weight of a total fiber weight of the sheet. | 07/31/2007 |
| 7241711 | Water-disintegratable sheet and manufacturing method thereof Disclosed is a water disintegratable sheet of which fibers are hydroentangled about each other. The water disintegratable sheet includes: at least one kind of primary fibers having a fiber length of at most 10 millimeter; and bast/leaf fibers having a Canadian Stand... | 07/10/2007 |
| 7135253 | High discharge current lithium secondary battery and method of manufacture To provide a lithium secondary battery with a high critical discharge current even under a low temperature condition, with an excellent cycle characteristic and reduced manufacturing cost. The lithium secondary battery includes a wound type electrode body comprising... | 11/14/2006 |
| 7090744 | Process for making composition for conversion to lyocell fiber from sawdust A process for making a composition for conversion to lyocell fiber where the process comprises pulping a raw material in a digester to provide an alkaline pulp, wherein the raw material comprises sawdust in an amount greater than 0 % up to 100 %; and contacting the ... | 08/15/2006 |
| 7081184 | Process for making a very low COD unbleached pulp A process for making a pulp product that has a low COD is comprised of soaking and washing pulp in alkaline water for a sufficient time so that the COD after soaking and washing is less than or equal to 2.0 kg/1000 kg of dry pulp. The process includes repetitively s... | 07/25/2006 |
| 7067244 | Rapid triglyceride assay for use in pulp pitch control Enzymatic methods are provided for determining the surface triglycerides content in a sample of wood pulp. The methods preferably comprise reacting triglycerides which are present on the surface of the wood pulp fibers in the sample in the presence of a lipase to fo... | 06/27/2006 |
| 7008505 | Eucalyptus biomechanical pulping process In a new process for preparing pulped wood chips for paper making, chips from a hardwood such as eucalyptus are inoculated with aliving culture of one or more white rot fungi. The fungi propagate throughout the body of the wood chip, selectively attacking the lignin... | 03/07/2006 |
| 6902649 | Enhanced fiber additive; and use The disclosure provides a process of modifying a seed based fiber (SBF) to form an enhanced fiber additive (EFA). The process includes an acid treatment step and optionally at least one fiber modification step. Preferred EFA products and uses are described. ... | 06/07/2005 |
| 6846382 | Nonwoven web material for infusion packaging and method of making same A multi-phase, non-heat seal tea bag web material is provided with a pattern on either the top or bottom phases. The top phase is formed from fibers, such as hardwood, that provide a tighter or more dense fibrous phase than the vegetable fibers used in the base phas... | 01/25/2005 |
| 6833187 | Unbleached pulp for lyocell products In accordance with the present invention, lyocell products can be made with unbleached pulps resulting in products with high amounts of hemicellulose and high amounts of lignin as compared to conventional lyocell products. The lyocell products of the present inventi... | 12/21/2004 |
| 6817556 | METHOD AND APPARATUS FOR SEPARATING USED MATERIALS FROM ONE ANOTHER AND INTO REUSABLE COMPONENTS PARTICULARLY FOR RECYCLING WOOD PRODUCTS, USED FURNITURE, AUTOMOBILE COMPOSITE MATERIAL AND SIMILAR PRODUCTS A method for breaking down used materials or items, particularly wooden or motor-vehicle items, into reusable components with the use of fractionating tools, with which the accelerated parts of used material interact. The breakdown is effected selectively through im... | 11/16/2004 |
| 6814759 | Stable zeolite/cellulose composite materials and method of preparation Stable cellulosic fiber material for use in forming zeolite/cellulose composites is prepared by suspending loose cellulose fibers in an aqueous solution of sodium hydroxide, potassium hydroxide or sodium silicate, stirring the resulting suspension until it reaches a... | 11/09/2004 |
| 6800319 | Accessing leaf and/or stem parts of plants The invention relates to the separation and of components from vegetable raw materials. The invention provides a method for separating components from vegetable material which has at least leaf and/or stem parts, characterized in that the material is at least partly... | 10/05/2004 |
| 6797113 | Use of thinnings and other low specific gravity wood for lyocell pulps method The use of low specific gravity wood from thinning operations, for example, will produce a lower brownstock viscosity for a given kappa number target. A differential of 200-cP falling ball pulp viscosity has been detected from Kraft cooks of low and high specific gr... | 09/28/2004 |
| 6790527 | Lyocell fiber from unbleached pulp In accordance with the present invention, lyocell products can be made with unbleached pulps resulting in products with high amounts of hemicellulose and high amounts of lignin as compared to conventional lyocell products. The lyocell products of the present inventi... | 09/14/2004 |
| 6599326 | Inhibition of pulp and paper yellowing using hydroxylamines and other coadditives Chemical pulps or papers, especially kraft pulps or papers, which may still contain traces of lignin, have enhanced resistance to yellowing when they contain an effective stabilizing amount of a N,N-dialkylhydroxylamine, an ester, amide or thio substitute... | 07/29/2003 |
| 6595217 | Smoking articles Cigarette filter rod employs as filtration material moisture disintegrative paper. The moisture disintegration index of the paper does not exceed 20.... | 07/22/2003 |
| 6551358 | Alkaline enzyme scouring of cotton textiles The invention relates to a process for treatment of cellulosic material, as for example, knitted or woven cotton fabric, comprising the steps of preparing an aqueous enzyme solution comprising pectinase, treating the cellulosic material with an effective ... | 04/22/2003 |
| 6548659 | Process for ammoniating cellulosic materials Process for enriching the organic nitrogen content of commercial scale quantities of cellulosic materials which includes the steps of: a) placing substantially dry or unwetted cellulosic material in a pressurizable reactor; b) injecting an ammonia or ammo... | 04/15/2003 |
| 6451063 | Cellulase for use in industrial processes A method for treating cellulosic materials is disclosed which comprises contacting the cellulosic material with a cellulase obtainable from Thermomonospora fusca corresponding to E5 or a derivative thereof. Particularly preferred methods comprise stonewas... | 09/17/2002 |
| 6402887 | Biopulping industrial wood waste A method using biological processes in the production of pulp from industrial wood waste is described. The process makes use of various species of white-rot fungi which selectively degrade lignin. The industrial wood waste must be cleaned and hydrated pri... | 06/11/2002 |
| 6372086 | Pulper and countercurrent washer sugar cane extraction Processes are disclosed for extracting sugar rich liquor from sugar cane. The sugar cane is first treated by pulping it in two tub type pulpers having a rotating impeller. The contents of the first pulper are extracted through the bedplate of the extracto... | 04/16/2002 |
| 6352565 | Electric double layer capacitor An electric double layer capacitor having an element impregnated with a non-aqueous electrolyte, said element comprising positive and negative electrodes made of carbonaceous electrodes, and a separator interposed between the electrodes, wherein said sepa... | 03/05/2002 |
| 6344108 | Using a dicarboxylic acid dialkyl ester brightening A process for producing fibrous materials for the manufacture of cellulose, paper or wood materials by using at least one dicarboxylic acid dialkyl ester and/or a copolymer of polyester-polyether and/or fatty acid polyol monopolyester, dipolyester, tripol... | 02/05/2002 |
| 6325888 | Method for pulping sawdust Chemical cellulose pulp is made from sawdust utilizing a static down-flow retention vessel. By adding steam and cooking liquor to a flow of sawdust a heated slurry, at a cooking temperature of about 250-350° F., is produced. The heated slurry is, at supe... | 12/04/2001 |
| 6302997 | Process for producing a pulp suitable for papermaking from nonwood fibrous materials A process for producing a pulp suitable for papermaking from a nonwood fiber source material. Representative nonwood fiber source materials include corn stover and wheat straw. The process includes the steps of providing a nonwood fiber source material; d... | 10/16/2001 |
| 6284098 | Lignocellulose fiber filler for thermoplastic composite compositions A discontinuous lignocellulose fiber is described for use as a reinforcing filler for thermoplastic composite compositions. The fiber filler includes a significant percentage by weight of long, "hair-like" fibers. Specifically, at least about 20 percent b... | 09/04/2001 |
| 6251221 | Process for preparing cellulose from lignin-poor cellulose-containing feed stocks The method of the invention involves treating cellulosic vegetable matter (the "Feed Stocks") for the selective recovery of lignin (when present in the feed-stock), cellulose and hemi-celluloses by: (1) reducing the material to be processed to an appropri... | 06/26/2001 |
| 6179959 | Method of making kenaf pulp A method of making kenaf pulp of the present invention is formed of a first process of cutting at least one of core, rind, root and stalk of kenaf into chips with a predetermined length; a second process of crushing the chips of kenaf by mixing the chips ... | 01/30/2001 |
| 6153300 | Bleaching cellulose pulp having cleanliness which varies significantly over time using at least two different bleaching stages and bleaching chemicals Recycled paper pulp having at least two different types of paper which consume widely different amounts of bleaching chemical, or mixed hardwood and soft-wood pulps, are treated in a manner that enhances distribution and redistribution of bleaching chemic... | 11/28/2000 |
| 6139883 | Porous web material A fibrous, porous web material of the non-heat seal tissue having a basis weight of 9-18 gm-2 and comprises a first layer and a second layer juxtaposed thereto wherein the second layer. The first layer comprising vegetable fibers and a second layer compri... | 10/31/2000 |
| 6110323 | Methods of refining agricultural residues to absorbent cellulose, xylose, and plant nutrient liquor, and products produced by such methods A method of creating a number of separate product streams from an agricultural waste material, comprising: providing a starting material consisting of an agricultural waste material; hydrolyzing the starting material with an acid solution at atmospheric p... | 08/29/2000 |
| 6074523 | Method of manufacturing highly-airtightened porous paper Paper that has minute pores, denseness, a high degree of airtightness and is made from cellulose which has superior heat and chemical resistance and is reproducible natural resources. Further, a non-aqueous battery which is improved to a higher level with... | 06/13/2000 |
| 6040797 | Method for detecting a radar target The invention relates to a method of detecting a radar target, especially a sea target, in the presence of clutter caused by ocean waves in particular. To detect a radar target within a predeterminable region, first a measurement window corresponding to t... | 03/21/2000 |
| 5976320 | Method for producing paper pulp from fibers of annual plants A method for producing paper pulp containing fibers of annual plants or of secondary raw materials produced therefrom, whereby fiber materials are shortened to a length which permits production of a homogeneous, pumpable suspension of the shortened fiber ... | 11/02/1999 |
| 5962676 | Processes for the modification and utilization of bacterial cellulose Treatment of gelatinous bacterial cellulose by breaking up gelatinous cellulose into a micro-fiber form and then evaporating water from the result with application of heat. The evaporation can be achieved by heating to a temperature above 100 degrees Cent... | 10/05/1999 |
| 5958182 | Process for converting tropical plant material into fibers A process for converting tropical materials into fibers useful in paper-making, textiles, insulation, general fiber filler and the absorption of liquids. The tropical materials utilized in the process include, banana, plantain or cavendish plant stalks, p... | 09/28/1999 |
| 5958186 | Nonwoven material containing a mixture of pulp fibres and long hydrophillic plant fibres and a method of producing the nonwoven material Nonwoven material produced by hydroentanglement of a wet-laid or foam-formed fibre web. The material comprises a mixture of short plant fibres, in particular pulp fibres, and long hydrophillic plant fibres, where the major portion of the fibres presents a... | 09/28/1999 |
