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| Number | Title | Issue Date |
| 7815832 | Manufacture of cellulose ester filaments: lubrication in the spinning cabinet In the manufacture of cellulose ester fibers, a dope is extruded into filaments. Extrusion occurs in an elongated cabinet having an outlet for the filaments. The filaments are taken up after exiting the outlet. The filaments are lubricated at the outlet of the cabin... | 10/19/2010 |
| 7713459 | Cellulose fiber for using as industrial materials The present invention relates to cellulose fiber containing 500 to 2000 of filaments and having homogeneous physical properties and the multi-filaments according to the present invention is characterized in that the strength and the breaking elongation of the multi-... | 05/11/2010 |
| 7425289 | Process of making cellulose acetate tow In the manufacture of a fiber tow, particularly cellulose acetate tow, a stuffer box crimper has a pair of nip rollers, at least one, made of a solid ceramic material. ... | 09/16/2008 |
| 7364681 | Spinning device and method having cooling by blowing The present invention relates to an apparatus for producing continuously molded bodies from a molding material, such as a spinning solution containing cellulose, water and tertiary amine oxide. The apparatus (1) comprises a die plate (3) including extr... | 04/29/2008 |
| 7326376 | Method and device for controlling the composition of the cellulose containing extrusion solution in the lyocell process A method of regulating the composition of the cellulose-containing extrusion solution in the production of cellulosic molded articles, whereby (a) cellulose is mixed with an aqueous amine oxide solution; (b) the mixture is converted to the extrusion solution by evap... | 02/05/2008 |
| 7303710 | Method and device for extruding a continuous moulded body The present invention relates to an apparatus and a method as well as a system for extruding continuously molded bodies for producing filaments or staple fibers from an extrusion solution, such as a cellulose solution containing water, cellulose and tertiary amine o... | 12/04/2007 |
| 7270779 | Method and device for producing continuous molded bodies The present invention relates to a method and an apparatus for extruding continuously molded bodies, wherein an extrusion solution, in particular an extrusion solution containing water, cellulose and a tertiary amine oxide, is extruded through an extrusion orifice i... | 09/18/2007 |
| 7189667 | Sponge towel based on cellulose and a method for producing the same The invention relates to a sponge cloth based on cellulose and having an internal reinforcement, obtainable by the amine oxide process. In the process, a solution of cellulose in an aqueous amine oxide is first produced, which is then mixed with at least one pore fo... | 03/13/2007 |
| 7175792 | Method for producing cellulose shaped-bodies Process for manufacture of cellulose mouldings, such as fibres, filaments, or films, from TCF-bleached or ECF-bleached cellulose, in which the bleached cellulose is dissolved in an aqueous tertiary aminoxide to form a mouldable cellulose, the cellulose solution defo... | 02/13/2007 |
| 7173094 | Moldings of fluororubbers and process for their production Moldings of fluoro rubbers produced by crosslinking a tetrafluoroethylene/propylene copolymer or a tetrafluoroethylene/propylene/vinylidene fluoride copolymer, which have metal contents of 1.5% by mass or below in terms of metal elements and are suitable for use app... | 02/06/2007 |
| 7144461 | Method of removing acid component in deteriorated acetate film There is provided a method of removing acids from the surface and interior of an acetate film produced by deterioration during storage. Such methods are characterized by extracting and removing the acids from the surface and interior of the acetate film, and the ext... | 12/05/2006 |
| 7097344 | Homogeneous cellulose solution and high tenacity lyocell multifilament using the same The present invention relates to a method for making highly homogenized cellulose solution, wherein the cellulose solution is obtained by obtaining a solidified N-methylmorphorine-N-oxide (hereinafter, referred to as ‘NMMO’) hydrates which is solidified a liquid... | 08/29/2006 |
| 7060211 | Yam and cloths made mainly from bamboo sheaths and methods for manufacturing the same The present invention provides yarn and cloths made by utilizing bamboo fiber and methods for manufacturing these yarn and cloths, thereby the bamboo fiber can be utilized by being extracted from sheaths of bamboo shoots or bamboo sheaths that generate at the root o... | 06/13/2006 |
| 7052775 | Method for producing cellulose shaped bodies with super-absorbent properties A process for producing cellulosic formed materials having high water retention capacity according to the dry-wet extrusion process by producing a solution of 5 to 20 wt.-% of cellulose in a hydrous tertiary amine oxide, extruding the solution, stretching the extrud... | 05/30/2006 |
| 7029622 | Method for extruding a continuous molded body The present invention relates to a method for producing a continuously molded body from an extrusion solution preferably containing water, cellulose and a tertiary amine. The extrusion solution is extruded through an extrusion duct orifice to obtain a continuously m... | 04/18/2006 |
| 7025926 | Method for extruding a continuous shaped body The present invention relates to a method of producing a continuous molding making use of an extrusion solution containing preferably water, cellulose and a tertiary amine oxide. The extrusion solution is extruded through an extrusion-channel opening so as to form a... | 04/11/2006 |
| 6972102 | Method and device for continually producing an extrusion solution The invention relates to a method for continually producing an extrusion solution for producing cellulosed shaped bodies, such as fibres and films, according to the lyocell method. According to the inventive method, (a) a cellulose suspension is produced from cellul... | 12/06/2005 |
| 6972101 | Method and device for regulating the composition of solution(s) A method and device for regulating the composition of a solution(s) in the production of cellulosic mouldings. The device comprises multiple measuring devices for the measurement of non-optical properties of the solution. According to invention, by measuring the non... | 12/06/2005 |
| 6949126 | Production of dyed lyocell garments Garments are constructed from lyocell fabric which has been resinated using a textile resin having just two groups per molecule which can reactively cross-link with cellulose molecules of the lyocell fabric then causticised by application under tension of an aqueous... | 09/27/2005 |
| 6939960 | Cellulose ethers A cellulose ether that is predominantly substituted in the C3 position of the anhydroglucose unit of the cellulose is described. In an embodiment of the present invention, the partial degree of substitution in the C3 position of the cellulose ether is ≧60%, based ... | 09/06/2005 |
| 6929884 | Method for manufacture of films containing insoluble solids embedded in cellulose-based films A film which slowly releases solids is prepared by dissolving cellulose in a solvent such as an alkali metal salt, for example L1Cl in a polar solvent such as DMAC, dispersing the solid in the solution and gelling the solution with water to form a film. | 08/16/2005 |
| 6902690 | Method and device for producing cellulosed shaped bodies The invention relates to a method for producing cellulosed shaped bodies. (a) Cellulose and an aqueous aminoxide are mixed, whereby a suspension is produced. (b) A cellulose solution is produced from the suspension, whereby water evaporates. (c) A first property and... | 06/07/2005 |
| 6902804 | Lyocell multifilament The present invention relates to a high tenacity, high modulus and low shrinkage lyocell multifilament yarn suitable for use in tire cords and MRG (mechanical rubber goods). The lyocell multifilament yarn is a cellulose-based fiber for industrial applications, which... | 06/07/2005 |
| 6887409 | Method and device for the production of cellulose fibers and cellulose filament yarns A method for the production of cellulose fibers or filaments from cell material, by the dry-wet extrusion method with aqueous amine oxides, in particular, N-methylmorpholine-N-oxide as solve is described comprising the following steps: a) dispersion of a cell materi... | 05/03/2005 |
| 6881361 | Method for producing shaped bodies The invention relates to a method for producing shaped bodies, especially threads or foils, from at least one polymer of the groups consisting of polysaccharide, polysaccharide derivative or polyvinyl alcohol by forming a solution of the polymer that contains an add... | 04/19/2005 |
| 6861023 | Process for making lyocell fiber from sawdust pulp A process for making lyocell fibers including the steps of pulping raw material in a digester to provide an alkaline pulp, wherein the raw material includes sawdust in an amount greater than 0% up to 100%; contacting the alkaline pulp including cellulose and at leas... | 03/01/2005 |
| 6821591 | Seamless tubular film and methods and devices for producing a seamless tubular film materials The present invention provides a seamless tubular film on a cellulose base, being produced by extruding an aqueous cellulose N-methyl-morpholine-N-oxide spinning solution. The maximum degree of roughness Rmax is from greater than 0.1 μm to 0.5 μm and an... | 11/23/2004 |
| 6814904 | Method for producing cellulosic forms Process for producing formed cellulosic articles, particularly fibers and filaments, comprising a) dissolving cellulose in an aqueous solution of a tertiary amine oxide, especially N-methyl-morpholine N-oxide, and b) extruding the cellulose solution through an extru... | 11/09/2004 |
| 6797100 | Method and apparatus for the manufacture of a tube made of film on a cellulose basis which an insert reinforces The invention relates to a film tube (10) based on cellulose which is produced by extruding an aqueous cellulose-N-methyl-morpholine-N-oxide (NMMO) solution through a ring nozzle (21) onto a lining (3). The film tube (10) is manufactured ... | 09/28/2004 |
| 6793689 | Dyed cellulosic moulded bodies The present disclosure relates to novel dyed cellulosic moulded bodies, in particular to fibers or films, containing a heavy-metal-containing colorant, which, according to the thermal stability test described herein, reduces the rise temperature of a cellulose solut... | 09/21/2004 |
| RE38583 | Process for the production of cellulosic moulded bodies The invention relates to a process for the manufacture of cellulosic flat films and cellulosic membranes in the form of flat membranes whereby a solution of cellulose in an aqueous tertiary amine oxide is moulded in film form using an extrusion nozzle which has an o... | 09/14/2004 |
| 6756001 | Process for making a spun article from cellulose material The invention concerns a coagulating agent for liquid crystal solutions with a base of cellulose substances, characterised in that it contains at least one water soluble additive selected from the group consisting of ammonia, amines of salt of these compounds, the a... | 06/29/2004 |
| 6746641 | Method for producing cellulosic forms Process for producing formed cellulosic articles, such as fibers, filaments, sheetings, membranes or tubes, comprising a) extruding a solution of cellulose in an aqueous amine oxide, particularly N-methylmorpholine N-oxide, through an extrusion die via an air gap an... | 06/08/2004 |
| 6720057 | Method for producing a cellulose fibre from hydrocellulose The invention described here concerns a process to permit the manufacture of a cellulose fibre from hydrate cellulose with an extremely large surface area which may be used for the preparation of a fabric characterized by a high absorptive power, good liquid-retenti... | 04/13/2004 |
| 6706237 | Process for making lyocell fibers from pulp having low average degree of polymerization values The present invention is directed to methods of making lyocell fibers. In particular, the process includes reducing the average degree of polymerization of a pulp to about 200 to 1100 without substantially reducing the hemicellulose content of the pulp, and reducing... | 03/16/2004 |
| 6706224 | Process and device for the production of cellulosic moulded bodies The invention relates to a process for the production of a spunlaid fabric containing solvent-spun cellulosic fibers. The process is characterised in that a solution of cellulose in an aqueous tertiary amine oxide is extruded through a spinneret (1) with orif... | 03/16/2004 |
| 6685856 | Use of thinnings and other low specific gravity wood for lyocell products 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 ... | 02/03/2004 |
| 6645409 | Process for the production of cellulosic fibres The invention relates to a process for the production of cellulosic fibers from solutions of cellulose in an aqueous tertiary amine oxide whereby the extruded fibers are led through a precipitating bath and cut and the cut fibers are passed through a seri... | 11/11/2003 |
| 6579461 | Method for preparing or purifying aqueous solutions of a tertiary amino-oxide The invention relates to a process for the reprocessing respectively purification of aqueous solutions of a tertiary amine oxide, particularly of process waters, e.g. used precipitation baths, which occur during the production of cellulosic moulded bodies... | 06/17/2003 |
| 6565788 | Process for the production of cellulosic flat films The invention relates to a process for the production of cellulosic flat films whereby a solution of cellulose is extruded in an aqueous tertiary amine oxide by means of an extrusion die which has an extrusion gap whereby the solution is moulded in the sh... | 05/20/2003 |
