| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 162028000 | With plural or specified mechanical defibering step | 18 |
| 20090101295 | Self-Bonding Polypridobismidazole Pulp and a Process for Making Same - The invention concerns a fibrous pulp comprising polypyridobisimidazole fiber, the pulp having a Canadian Standard Freeness (CSF) of no more than about 650 ml, a specific surface area of from 0.5 to 50 square meters per gram, a length-weighted average length of from 0.5 to 2.0 mm, and a equilibrium moisture content of greater than 10 percent by weight. Also provided are papers made from such pulp and processes for making the pulp. | 04-23-2009 |
| 20090145563 | SYSTEM AND METHOD FOR THE SEPARATION OF BAST FIBERS - The present invention relates generally to the timber products industry, and particularly to methods and apparatus for the separation of bast fibers. More particularly, the present invention relates to methods and apparatus for use in the separation of inner core from outer bast of bast plants using soaking, cutting, and scrimming methods and apparatuses. | 06-11-2009 |
| 20090205794 | METHOD FOR THE PRODUCTION OF TISSUE PAPER - A method for the production of a tissue paper web, which is produced from a pulp suspension comprised of fibers, the pulp suspension having a refining degree of less than 21°SR and being of such condition that it is possible to produce from said pulp suspension a laboratory sheet according to TAPPI 205 SP 95 (Rapid Köthen) whose breaking length measured according to TAPPI 220 and TAPPI 494 at least a specific refining degree (RD | 08-20-2009 |
| 20090255639 | METHOD FOR MAKING A BIODEGRADABLE FIBROUS MATERIAL COMPOSITION - A method for making a biodegradable fibrous material composition includes: (a) grinding raw bamboo into coarse raw bamboo particulates; (b) drying the raw bamboo particulates; (c) grinding the raw bamboo particulates into fine bamboo powder; (d) mixing the bamboo powder with water to result in a mixture; (e) stirring the mixture at a speed ranging from 1000 to 1800 rpm/min, which leads to formation of softened bamboo fibers; and (f) stirring a mixture of the softened bamboo fibers, a binder, a solidifying agent, a water repellent, starch and water at a speed ranging from 1000 to 1800 rpm/min. | 10-15-2009 |
| 20090308549 | Device and Method for Defibration of Wood - A device for mechanical defibration of wood comprises a defibration surface for processing of wood raw material and loosening of fibers, said defibration surface comprising grinding grits fastened on a metal base surface. The grits ( | 12-17-2009 |
| 20100043988 | METHOD FOR ISOLATING CELLULOSE AND OTHER ADHESIVE MATERIALS DURING THE RECYCLING OF WASTE PLASTICS, IN PARTICULAR MIXED PLASTICS - A method for the removal of wood pulp and other adhering substances from waste plastics in the recycling of all types of waste plastics, of mixed plastics (MKS) in particular, in which foils and pieces from thicker plastic parts of if necessary pre-sorted waste plastics are mechanically pre-shredded into flakes or particles up to a preset size, wherein oversizes are sorted out, the shredded product is charged into a disc refiner together with water, wherein the proportion of flakes and other particles is at least 10% of the total volume, substances adhering on the flakes are rubbed down by the co-operating discs of the refiner to a large extent, and are then present as separate substances, and the substances rubbed down are separated from the plastic particles by a suitable separation method. | 02-25-2010 |
| 20100193143 | PULP COMPRISING POLYPYRIDOBISIMIDAZOLE AND OTHER POLYMERS AND METHODS OF MAKING SAME - The present invention relates to fibrous pulp comprising a combination of polypyridobisimidazole fibrous structures and fibrous structures derived from another polymer. The invention further relates to processes for making such pulp and articles comprising the pulp | 08-05-2010 |
| 20100193144 | POLYARENEAZOLE/THERMOPLASTIC PULP AND METHODS OF MAKING SAME - The present invention relates to thermoplastic and polyareneazole pulp for use as reinforcement material in products including for example fluid sealing materials, as a processing aid including its use as a thixotrope, and as a filter material. The pulp comprises (a) irregularly shaped, thermoplastic fiber fibrous structures, (b) irregularly shaped, polyareneazole fibrous structures and (c) water, whereby thermoplastic fiber fibrils and/or stalks are substantially entangled with polyareneazole fibrils and/or stalks. The invention further relates to processes for making such thermoplastic and polyareneazole pulp. | 08-05-2010 |
| 20100193145 | POLYARENEAZOLE/THERMOSET PULP AND METHODS OF MAKING SAME - The present invention relates to thermoset and polyareneazole pulp for use as reinforcement material in products including for example fluid seals and friction materials, as a processing aid including its use as a thioxotrope, and as a filter material. The pulp comprises (a) irregularly shaped, thermoset fiber fibrous structures, (b) irregularly shaped, polyareneazole fibrous structures and (c) water whereby thermoset fiber fibrils and/or stalks are substantially entangled with polyareneazole fibrils and/or stalks. The invention further relates to processes for making such thermoset and polyareneazole pulp. | 08-05-2010 |
| 20100200183 | POLYARENEAZOLE/WOOD PULP AND METHODS OF MAKING SAME - The present invention relates to wood pulp and polyareneazole pulp for use as reinforcement material in products including for example friction materials, fluid sealing materials, and papers. The pulp comprises (a) irregularly shaped, wood pulp fibrous structures, (b) irregularly shaped, polyareneazole fibrous structures, and (c) water, whereby wood pulp fibrils and/or stalks are substantially entangled with polyareneazole fibrils and/or stalks. The invention further relates to processes for making such wood pulp and polyareneazole pulp. | 08-12-2010 |
| 20100206500 | APPARATUS AND METHOD FOR MANUFACTURING FIBRE MASS SUSPENSION - A fiber mass suspension is produced by mixing together a fiber material (FM) and water (W) in a pulper ( | 08-19-2010 |
| 20100252213 | PULP AND PAPER HAVING INCREASED BRIGHTNESS - The present invention relates to a method of increasing the brightness of pulp, pulp made from such methods and methods of using such pulp. | 10-07-2010 |
| 20110100571 | Method for Producing Fine Paper Powder and Resin Composition Containing the Same - Coarsely shredded paper powder is pulverized using a first vertical roller mill equipped with a plurality of first pulverizing rollers | 05-05-2011 |
| 20110277947 | CELLULOSE NANOFILAMENTS AND METHOD TO PRODUCE SAME - Cellulose nanofilaments from cellulose fibers, a method and a device to produce them are disclosed. The nanofilaments are fine filaments with widths in the sub-micron range and lengths up to a couple of millimeters. These nanofilaments are made from natural fibers from wood and other plants. The surface of the nanofilaments can be modified to carry anionic, cationic, polar, hydrophobic or other functional groups. Addition of these nanofilaments to papermaking furnishes substantially improves the wet-web strength and dry sheet strength much better than existing natural and synthetic polymers. The cellulose nanofilaments produced by the present invention are excellent additives for reinforcement of paper and paperboard products and composite materials, and can be used to produce superabsorbent materials. | 11-17-2011 |
| 20120000618 | REDUCTION OF FIBER KNOTS OF CELLULOSE CROSSLINKED FIBERS BY USING PLASMA PRE-TREATED PULPSHEETS - The process of making crosslinked cellulose pulp fiber comprising plasma treating a sheet of cellulose pulp fiber before the sheet is impregnated with a crosslinking formulation which comprises a crosslinking agent and a catalyst, then defiberizing the treated cellulose pulp sheet to form treated defiberized cellulose pulp, then heating and curing the treated defiberized cellulose pulp to form intrafiber crosslinked cellulose pulp fibers. | 01-05-2012 |
| 20140083634 | METHOD AND AN APPARATUS FOR PRODUCING NANOCELLULOSE - Described herein is nanocellulose produced by introducing a mixture of cellulose based fiber raw material and water through a refining gap, having a width smaller than 0.1 mm. In the refining gap, the fiber raw material is subjected to processing forces varying in the direction of introducing said mixture, by means of refining zones provided in the gap one after each other in the feeding direction, whereby the refining surfaces differ in surface patterning and/or surface roughness. The mixture of fiber raw material and water is guided past the refining surfaces in the feeding direction to different locations in the refining zone by by-pass channels provided in the stator. The width of the refining gap is maintained by the combined effect of the feeding pressure of the mixture of fiber raw material and water fed into the refining gap and the axial force of the rotor. | 03-27-2014 |
| 20160024716 | DEVICE FOR PREPARING A SUBSTANCE | 01-28-2016 |
| 20160102433 | A METHOD AND A DEVICE FOR PRODUCING NANOFIBRILLAR CELLULOSE - In a method for producing nanofibrillar cellulose, cellulose based fiber material in dispersion is processed for separating fibrils. The method includes a first step where the fiber material is supplied to a disperser, where it flows through several counter-rotating rotors in such a way that the material is repeatedly subjected to shear and impact forces by the effect of the different counter-rotating rotors, and a second step, where the fiber material obtained from the first step is supplied to a homogenizer, where it is subjected to homogenization by the effect of pressure. | 04-14-2016 |
