Class / Patent application number | Description | Number of patent applications / Date published |
162057000 | With agitation or forced circulation | 13 |
20080271861 | Method for Oxygen Delignification of Cellulose Pulp by Mixing of Chemicals - The method is for the improved oxygen delignification of cellulose pulp with a medium consistency of 8-16%. The fraction of dissolved oxygen can be maintained at a high level throughout the process by the use of high pressure, greater than 15.0 bar, and by repeated agitative mixing while maintaining the high pressure. A fraction just over 20% of the total oxygen added is dissolved in the fluid phase such that the amount of oxygen in the fluid phase is maintained at a high level throughout the complete high-pressure section. This means that the amount of oxygen that is dissolved in the fluid phase and that penetrates the cellulose fibers can be maintained at an optimal high level throughout the process for improved delignification of the cellulose. | 11-06-2008 |
20090078383 | Fibrillated Polypridobismidazole Floc - The invention concerns a process for making a fibrillated polypyridobisimidazole floc comprising the steps of: cutting polypyridobisimidazole filaments to an average cut length of from about 0.5 to 10 mm; and applying energy to the polypyridobisimidazole filaments to produce a fibrillated floc having essentially the same average cut length after the application of energy as before the application of energy; where the fibrillated floc having a Canadian Standard Freeness (CSF), when dispersed in water by itself, of from about 400 to 750 ml. | 03-26-2009 |
20090218054 | BUILDING MATERIAL FOR FORMING AN ARCHITECTURAL SURFACE COVERING AND METHOD FOR PRODUCING THE SAME - A building material for use in forming exterior surface coverings. According to a preferred embodiment, the building material consists of the combination of a paper material, bonding agent, and water. The building material can either be formed directly upon a substrate, such as a wall or ceiling, or otherwise formed as a sheet of material or molding that can thereafter be affixed to a given surface or substrate. The building materials can be customized to have a specific type of color, shape and texture, and can further be utilized in a wide variety of building applications. | 09-03-2009 |
20090314442 | MANUFACTURING PROCESS FOR HYBRID ORGANIC AND INORGANIC FIBRE-FILLED COMPOSITE MATERIALS - The present invention relates to a process for the manufacture of structural hybrid thermoplastic composites where organic and inorganic fibres are well dispersed in a thermoplastic matrix. The process comprises defibrillating the organic fibres with or without the presence of surface active agents using a mixer at a high shear and at a temperature lower than the decomposition temperature of organic fibres and melting point of the surface active agents to separate the hydrogen bonded fibres and generate microfibres, followed by blending and dispersion of the organic fibres in the thermoplastic matrix to produce a fibre composite, followed by further blending and dispersion of the fibre composite with inorganic fibres at a low shear to get the moldable hybrid composite, followed by extrusion, injection or compression-injection molding. Low shear mixing maintains the inorganic fibre length. The process produces high performance composite materials having excellent performance properties and are ideally suited for automotive, aerospace, furniture, sports articles, upholstery and other structural and semi-structural applications. | 12-24-2009 |
20100288456 | FIBRILLATED BLEND OF LYOCELL LOW DP PULP - A fibrillated blend of lyocell and cellulosic pulp having a degree of polymerization of 200 to 1000 as measured by ASTM Test 1975-96, a method of making the blend and materials which incorporate the blend. | 11-18-2010 |
20110056636 | METHOD FOR DEGASSING AND SUPPLYING A FIBROUS SUSPENSION TO A HEADBOX OR A FILTER DEVICE AND DEGASSING DEVICE - Method for supplying fibrous suspension to at least one headbox that includes degassing a diluting liquid via rotation of a rotor of a degassing device to apply centrifugal forces to the diluting liquid, guiding the degassed diluting liquid out of the degassing device into a separate diluting water pump, and mixing at least a portion of the degassed diluting liquid with a high-consistency suspension to form the fibrous suspension | 03-10-2011 |
20120285640 | FIBRILLATED BLEND OF LYOCELL AND CELLULOSIC LOW DP PULP - A fibrillated blend of lyocell and cellulosic pulp having a degree of polymerization of 200 to 1000 as measured by ASTM Test 1975-96, a method of making the blend and materials which incorporate the blend. | 11-15-2012 |
20130276999 | FRUIT FIBER PROCESSING SYSTEM AND METHOD - A system and method of manufacturing a fiber for use in manufacturing products including providing a feedstock including fiber derived from edible fruit of a plant. An agent that degrades pectin may be applied to the feedstock to form a feedstock mixture. The feedstock mixture may be agitated, and solution including the fiber from the feedstock mixture may be removed. The fiber may be isolated from the solution. | 10-24-2013 |
20150034263 | METHOD FOR FIBRILLATION OF CELLULOSE AND FIBRIL CELLULOSE PRODUCT - A method for fibrillation of cellulose includes the following steps: introducing fibre pulp of anionic cellulose at a consistency of 1 to 4% into a homogenizer, and homogenizing fibre pulp in the homogenizer at a pressure of 200 to 1000 bar, advantageously 300 to 650 bar, and by using 2 to 4 passes through for the same fibre pulp under these conditions, and after passes through, taking pulp from the homogenizer, which pulp has been fibrillated by homogenization to a degree than can be expressed as Brookfield viscosity exceeding 10,000 mPa.s (consistency 0.8%, 10 rpm). | 02-05-2015 |
20160186376 | METHOD FOR PRETREATING CELLULOSE PULP - The invention relates to pretreating of native cellulose pulp in the manufacture of nanofibrillated cellulose, and to a nanofibrillated cellulose product obtainable by the method. | 06-30-2016 |
162058000 | In rotating vessel | 3 |
20080202713 | REFINER STEAM SEPARATION SYSTEM FOR REDUCTION OF DRYER EMISSIONS - A refiner steam separation system according to the present invention includes a blowline for transporting a mixture of fiber material from a refiner to an inlet of a steam separator. Waste steam is discharged from the separator through a waste steam outlet. Cleaned fiber material is discharged from the separator through an exit, which prevents a substantial portion of the waste steam from passing through the exit. A relay pipe communicates with the exit and a dryer duct, and transports cleaned fiber material therebetween. A resin input communicates with the relay pipe, and supplies resin therein. The resin is mixed with the cleaned fiber material prior to the cleaned fiber material being dried in the dryer duct. The present invention is also directed to a method of reducing VOC emissions generated during refining cellulosic fibrous material. | 08-28-2008 |
20100024996 | METHOD AND ARRANGEMENT FOR THE TREATMENT OF CELLULOSE PULP - A washer for washing and dewatering cellulose pulp is disclosed including a rotatable drum with a plurality of axial compartment walls defining a plurality of outer compartments, a stationary cylindrical casing enclosing the drum, and at least one axially disposed seal dividing the annular space between the stationary casing and the drum into a number of zones for treating the pulp. The function of the seals is optimized by units for seal adjustment which include a load cell for registering a pulse signal indicating the force acting on the seals, an extractor for deriving a pulse height parameter from the registered pulse signal and a motor for moving the seal radially with respect to the drum based on the pulse height parameter. | 02-04-2010 |
20160122945 | SHORT OXYGEN DELIGNIFICATION METHOD - A short oxygen delignification method employs a mixing assembly including a mixing chamber having an interior wall which is generally symmetrical about a central longitudinal axis. At least one inlet is used to introduce paper pulp, a basic compound, optional steam and an oxygen-containing gas into the mixing chamber. At least one axial baffle is connected to and extends along the interior wall. At least one transverse baffle is connected to and extends from the interior wall transverse to the axis. A rotatable agitator includes at least one agitator baffle extending transverse to the axis at a location in alignment with a respective transverse baffle. This forms at least one gap between the at least one agitator baffle and the at least one respective transverse baffle. The paper pulp fluid is forced to travel through the at least one gap. A short delignification reaction occurs inside the mixing chamber. Delignified paper pulp fluid leaves the mixing chamber through at least one outlet of the mixing chamber. | 05-05-2016 |