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WO/1997/001660 |
The present invention relates to a process for the preparation of a mixture of cellulosic fibers and microfibers. Said process comprises the preparation of a cellulosic solution (C); the extrusion of said solution (C) through the hole or...
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WO/1996/041911 |
A flameproof woven or knitted fabric to which deodorant function is imparted without impairing the flameproofness. Such a fabric is produced by applying a deodorant composition comprising an aluminosilicate comprising 5 to 80 mole % of S...
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WO/1996/038625 |
The invention relates to a process for crushing a cellulose material in which crushing takes place in at least two stages, where (1) the cellulose material is precrushed, whereby particles of various sizes are formed, (2) the particles p...
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WO/1996/037643 |
A process for producing coloured regenerated cellulose fibres is characterised in that a composition of a cationic polysaccharide and of an anionic dye is added to a viscose mass, alkaline cellulose or cellulose solution before spinning ...
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WO/1996/037641 |
Sulphonated regenerated cellulose fibres are produced by adding a modifier to a viscose mass or to an alkaline cellulose or cellulose solution and by spinning it into fibres. The modifier is starch etherified with C2-C5 alkyl sulphonic a...
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WO/1996/037642 |
Aminated regenerated cellulose fibres are produced by adding to a viscose mass, alkaline cellulose or cellulose solution one or several starches with a substitution degree from 0.1 to 3 etherified with C2-C5 alkylamines that may be furth...
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WO/1996/035010 |
A cellulose acetate fiber having excellent gloss and hand and comprising a mixture consisting essentially of (a): 100 parts by weight of cellulose acetate with (b) 5 to 40 parts by weight of a polymer material capable of plasticizing the...
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WO/1996/035008 |
The invention relates to a process for monitoring a flowing suspension of powdered cellulose in a liquid, aqueous tertiary amine oxide and features the combination of steps: (A) the suspension is inserted into a container with an inlet a...
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WO/1996/033934 |
The invention concerns a device for holding and discharging homogeneous suspensions of comminuted cellulose in a liquid, aqueous tertiary amine oxide, the device comprising: a cylindrical, substantially horizontally mounted mixing vessel...
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WO/1996/033221 |
A process is disclosed for producing a cellulose suspension in a liquid, aqueous tertiary amine oxide by mixing crushed cellulose with liquid, aqueous tertiary amine oxide. The process is characterised in that (A) crushed cellulose is co...
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WO/1996/033302 |
The invention concerns an integrated cellulose foil and fibre manufacturing works according to the amine oxide process. The works substantially comprise a cellulose production plant, a mixer (B, B') for producing a low-consistency cellul...
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WO/1996/030410 |
Described is a method of producing solutions of cellulose in water-containing tertiary-amine-N-oxides by preparing a mixture containing cellulose, water and tertiary-amine-N-oxides and subsequently reducing the water content of the mixtu...
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WO/1996/030566 |
The invention concerns a method of producing cellulose fibres by extruding a spinning solution containing dissolved cellulose in a gaseous medium over a predetermined gas section, subsequent immersion in and passage through a coagulation...
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WO/1996/030411 |
The invention concerns a process for activating polysaccharides, wherein the polysaccharide starting material is brought into contact with liquid ammonia at an initial pressure which is higher than atmospheric pressure and at a temperatu...
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WO/1996/027638 |
A composition contains fine solid particles provided with a coating or dispersed in a matrix. The particles are inert in relation to the coating or matrix. The coating or matrix consist of a homogeneous mixture of cellulose, tertiary ami...
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WO/1996/027035 |
The invention concerns a process for manufacturing cellulose moulded bodies in which a suspension of cellulose in an aqueous solution of a tertiary amine oxide is converted to a mouldable solution which is extruded using a shaping tool a...
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WO/1996/026220 |
Cellulose particles that have cationic groups also on the inside.
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WO/1996/021678 |
A method is described for forming a solution of cellulose in a tertiary amine oxide (such as N-methylmorpholine N-oxide) and a non-solvent for cellulose (such as water). The method involves the preparation of a mixture containing excess ...
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WO/1996/021758 |
A method of manufacturing extruded articles of lyocell is described wherein a solution of cellulose in a tertiary amine N-oxide is extruded by way of a die (2) through an air-gap (3) into a coagulating bath (5), air being supplied to and...
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WO/1996/020300 |
The invention relates to a spinning device for operating the wet/dry amino-oxide process with: a spinning nozzle having spinning apertures for extruding filaments; a blower device by means of which the extruded filaments can be cooled im...
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WO/1996/020301 |
The invention pertains to a process for manufacturing cellulosic moldings wherein a solution containing cellulose dissolved in amine oxides is molded in a die and the molded solution is fed through an air zone into a regenerating medium....
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WO/1996/020302 |
A method is disclosed of producing cellulose fibres or yarns with a reduced tendency to form fibrils. This is done by treating fibres or yarns which have undergone washing after the yarn-forming process but are not yet dried with a cross...
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WO/1996/019598 |
The invention relates to a container for spinning bath liquid to implement a dry/wet spinning process in which a spinning compound is extruded through a spinning nozzle with a high-density of apertures into a gaseous medium, forming a sh...
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WO/1996/018761 |
A process for producing molded fibers, filaments, threads, films, membranes in the form of flat, tubular and hollow fiber membranes, etc., wherein cellulosic solutions in an amine oxide of a tertiary amine and optionally water, especiall...
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WO/1996/018760 |
Solvent-spun cellulosic filaments from a solution of cellulose in a tertiary amine-N-oxide and optionally water, with a strength of 50 to 80 cN/tex, a breaking elongation of 6 to 25 % and a specific tear time of at least 300 s/tex. Solve...
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WO/1996/017118 |
Described is a method of producing shaped cellulose bodies in which a solution of cellulose in a tertiary-amine N-oxide and, optionally, water is warm-shaped and the shaped solution cooled with air before being passed into a coagulation ...
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WO/1996/014451 |
The moulding, especially a fibre or foil, of cellulose regenerated by the amino-oxide process, is characterized in that the cellulose contains 0.02 to 30 % mass of a polyalkylene imine derivative. Besides the stabilisation of the mouldin...
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WO/1996/012761 |
The use together of (1) an aromatic compound containing a benzene ring bearing at least two substituents selected from the group consisting of hydroxy groups, primary amino groups and secondary amino groups and (2) a sulphur-containing c...
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WO/1996/009356 |
Liquid crystal solutions comprising cellulose dissolved in a solvent are disclosed. The solutions contain over 10 wt % of cellulose and are optically anisotropic at room temperature and at rest. The solvent contains over 85 wt % of at le...
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WO/1996/007780 |
A process is proposed for producing cellulose fibres spun from solvents and with a reduced tendency to fibrillate. The process in question involves treating the fibres with one or more compounds selected from the following groups: (A) N-...
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WO/1996/007777 |
The invention relates to a process for producing cellulose fibres where a solution of cellulose in an aqueous tertiary amine oxide is extruded through the holes in a spinneret to form filaments which are taken through an air gap into a s...
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WO/1996/007778 |
A process for producing a cellulose moulding, especially cellulose fibres, by the combination of steps in which a cellulose-containing material is introduced into an aqueous solution of a tertiary amine oxide in order to put it in suspen...
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WO/1996/007779 |
In a process for manufacturing cellulose moulded bodies, cellulose is dissolved in a mixture of a tertiary amine oxide and a non-solvent for cellulose, for example water, the solution is extruded through a shaping tool and the thus obtai...
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WO/1996/006207 |
The invention pertains to a process for making cellulose extrudates from an optically anisotropic solution containing 94-100 wt.% of the following constituents: cellulose, phosphoric acid and/or its anhydrides, and water, by extruding th...
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WO/1996/006208 |
Optically anisotropic solution containing cellulose and inorganic acids of phosphorus, with 94-100 wt.% of the solution being composed of cellulose, phosphoric acid and/or its anhydrides, and water. Preferably, inorganic acids of pentava...
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WO/1996/005744 |
Disclosed is a filter for tobacco smoke composed of at least one layer of a wet-formed absorbent fibrous nonwoven composite structure containing: 1) from about 30 to about 65 percent by weight, of pulp fibers forming a matrix having a fi...
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WO/1996/005338 |
The invention concerns a device for controlling the pressure in a flowing viscous material, the device being characterized by: an inlet (8a) through which the material flows into the device, a cylinder (9) capable of holding a particular...
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WO/1996/003067 |
The description relates to a device for preparing baby food with a frame (1) having a liquid container (7), an electric heating device (5) for the liquid in the container (7) and an outlet (12) for the heated liquid above a receptacle (3...
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WO/1995/035043 |
Cigarette filters are disclosed which comprise entangled continuous filaments of lyocell. The filaments may be entangled for example by hydroentangling a web which comprises one or more layers of lyocell filaments in spread tow form or b...
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WO/1995/035044 |
Cigarette filters which comprise hydroentangled lyocell staple fibres are disclosed. High filter efficiencies, good taste properties, good resistance to staining, good physical resilience and good air flow characteristics are observed wh...
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WO/1995/035399 |
The fibrillation tendency of solvent-spun cellulose fibre can be increased by subjecting the fibre to a treatment which reduces its degree of polymerisation by about 200 units or more. Suitable methods of treatment include severe bleachi...
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WO/1995/035400 |
Lyocell fibre with increased fibrillation tendency can be produced by spinning a solution containing at least 16 percent by weight cellulose of degree of polymerisation less than about 450 in a tertiary amine N-oxide solvent.
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WO/1995/030043 |
The fibrillation tendency of lyocell fabrics, and the degree of fibrillation of fibrillated lyocell fabrics, can be reduced by treating such fabrics with a cross-linking agent in the presence of an acid catalyst. Good results may be obta...
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WO/1995/029209 |
Pigmented cellulose acetate filaments are produced by mixing a dispersion of titanium dioxide in a carboxylate ester of a polyhydric alcohol with cellulose acetate and a solvent for cellulose acetate. The resulting dispersion of titanium...
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WO/1995/028516 |
The fibrillation tendency of lyocell fibres can be reduced by reaction in never-dried state at elevated temperature with a solution of a chemical reagent bearing a plurality of acrylamido groups, the average number of acrylamido groups p...
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WO/1995/025837 |
In preparing individualized polycarboxylic acid crosslinked fibers, defibration requirements are reduced to obtain a particular wet responsiveness and satisfactory absorbency properties are maintained even without washing or bleaching an...
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WO/1995/024524 |
The colour properties (i.e. freedom from a frosted visual appearance, especially in dyed form) of lyocell fibre, in particular in fabric form, can be improved by mercerising the fabric. The hand of the mercerised fabric can be softened t...
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WO/1995/024520 |
Crimp can be generated in lyocell fibre (19) by passing the wet fibre through a compaction device such as a stuffer box (32) fed with steam (37A). The method provides some permanent crimp, which is of advantage for example during process...
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WO/1995/023827 |
The invention relates to a process for producing cellulose shaped bodies, said process comprising the following steps: (A) dissolving cellulose in an aqueous solution of a tertiary amino oxide, in particular N-methylmorpholine-N-oxide (N...
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WO/1995/023882 |
A regenerated cellulose fiber dyeable with disperse dyes, which contains 10-40 wt.% of fine particles of a polyester or a styrene/acrylate copolymer dyeable with disperse dyes and having an average particle diameter of 0.05 - 5'mu'm. Whe...
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