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7585442 |
Process for making cellulose acetate tow
A process for making a cigarette tow comprising: spinning a dope; taking-up the as-spun cellulose acetate filaments; lubricating the filaments; forming a tow from the filaments; crimping the tow...
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7585441 |
Process of making cellulose acetate tow
In the manufacture of a fiber tow, particularly cellulose acetate tow, the tow is plasticized prior to entry into the crimper. The preferred plasticizer is water.
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7534380 |
Cellulose acetate tow and method of making same
In the manufacture of a fiber tow, particularly cellulose acetate tow, a stuffer box crimper has a steam injector in communication with the stuffer channel of the crimper. The steam injector...
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7534379 |
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 tow edge lubricators adapted to lubricate the lateral edges of the tow immediately prior...
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7445737 |
Cellulose acetate tow and method of making same
In the manufacture of a fiber tow, particularly cellulose acetate tow, a stuffer box crimper has one roller adapted to induce crimp into the tow. This roller induces crimp by preferentially...
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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.
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 L 1 Cl in a polar solvent such as DMAC, dispersing the solid in the...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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,...
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6565796 |
Method and apparatus for use in manufacture of cellulose casing
Disclosed is a method of sizing nonderivatized extruded cellulosic tubes by the use of a mandrel structure that includes a hollow sizing portion having openings which gather gas bubbles that may...
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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...
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6527997 |
Process of making cellulose formate fibers of liquid crystal origin
A cellulose formate fiber of liquid-crystal origin, having a high elongation at break and having the following characteristics: a) under an optical polarizing microscope, its filaments have a...
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6527987 |
Process for producing regenerated cellulosic fibers
It is an object of the present invention to overcome the problem of fibrillation which is a drawback found in solvent-spun regenerated cellulosic fibers and to thereby provide high-quality...
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6521169 |
Process for the production of cellulose shaped bodies, bodies produced by this process and the use thereof
Process for the production of cellulose shaped bodies through the precipitation of a cellulose solution containing cellulose dissolved in an amine oxide/water system in a precipitation bath,...
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6517758 |
Process for the production of cellulosic moulded bodies
The invention relates to a process for the production of cellulosic moulded bodies in the form of flat or tubular films and cellulosic membranes in the form of flat or tubular films whereby a...
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6488876 |
Composition containing fine solid particles
The invention relates to a composition intended to be admixed to a moldable solution of cellulose in an aqueous tertiary amine oxide, which composition consists of solid particles, a mixture of a...
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6444161 |
Mandrel structure for use in manufacture of cellulose food casing
Disclosed is a mandrel structure for extruding a tube composed of a non derivatized cellulose. The mandrel includes a hollow sizing portion having openings which gather gas bubbles that may evolve...
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6436325 |
Process of making cellulose based fiber
A method of manufacturing a cellulose based fiber of high water-retentivity. The cellulose based fiber of high water rententivity is manufactured by mixing together a stock solution as a...
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6319457 |
Method for extruding tubular film
A method and apparatus is disclosed for lacing an extruded tube of a non derivatized cellulose through an S-wrap to collapse the tube to a flat width. The lacing to form the S-wrap is accomplished...
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6306334 |
Process for melt blowing continuous lyocell fibers
The present invention is directed to a method of preparing continuous lyocell fibers by melt blowing techniques, a pulp useful for making lyocell fibers and to the fibers produced by the method. In...
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6264874 |
Method of controlling the diameter of a clear extruded tube
A method and apparatus for controlling the diameter of a clear extruded molten tube wherein the extruded tube contains a volume of a clear liquid and the level of the liquid is indicative of the...
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6258304 |
Process of making lyocell fibre or film
Lyocell fibres contain elongated domains of polyester, polyamide or an olefin copolymer, the domains having an aspect ratio at least 1.5 and being aligned substantially parallel to the axis of the...
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6241927 |
Method of producing cellulose fibers
The invention relates to a method of producing lyocell-type cellulose fibers by processing a spinnable solution of cellulose in an aqueous tertiary amine oxide according to the dry/wet-spinning...
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6190596 |
Process for producing cellulosic shaped objects
A process for producing cellulosic shaped objects includes extruding and coagulating a solution of chemical wood pulp in a tertiary amine oxide, and possibly a liquid that does not dissolve wood...
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