| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 264178000 | Into a liquid bath | 38 |
| 20090160078 | DEVICE AND METHOD FOR PREPARATION OF A PROFILED ELEMENT FROM AN ELASTOMERIC THERMOPLASTIC GEL - A device for preparing a flat profiled element from an elastomeric thermoplastic gel includes: | 06-25-2009 |
| 20120104647 | PROCESS AND APPARATUS FOR PRODUCING A STRAND-LIKE EXTRUDATE - A process for producing a strand-like extrudate ( | 05-03-2012 |
| 20130147087 | MANUFACTURING METHOD OF BIODEGRADABLE NET-SHAPED ARTICLES - A manufacturing method of biodegradable net-shaped articles includes: (a) preparing a biodegradable mixture; (b) granulating the mixture into plastic grains; (c) baking the plastic grains in an oven at 60° C. to 70° C. for 3 to 4 hours; (d) melting and extruding the plastic grains by a screw-type extruder so as to obtain a net-shaped preform; and (e) cooling and thereby finalizing the net-shaped preform in a cooling bath at 15° C. to 30° C. so as to obtain the net-shaped article. | 06-13-2013 |
| 20130193609 | METHOD AND DEVICE FOR PRODUCING STRAND-SHAPED GOODS - The invention relates to a method and to a device for producing strand-shaped goods in the form of small bands, fiber strands, monofilaments, or films, which are extruded from a polymer melt. After cooling in a cooling bath, a thermal treatment occurs between rolling feed units, wherein the goods are brought into contact with a hot medium. In order to be able to perform an individual thermal treatment depending on the thermoplastic material, the hot medium is provided optionally in the form of hot air or hot water according to the invention. For this purpose, the heating apparatus is formed from a forced-air oven and a water bath apparatus, which can be optionally activated to thermally treat the goods. | 08-01-2013 |
| 20150048541 | METHOD FOR EXTRUDING A POLYMER IN THE PRESENCE OF WATER - The invention relates to a method for converting a polycondensed elastomeric thermoplastic polymer, including a step of extruding the polycondensed elastomeric thermoplastic polymer in the presence of water. The polycondensed elastomeric thermoplastic polymer is in particular chosen from copolymer block amides, copolyethers or copolyester block urethanes, copolyether block esters and the mixtures thereof, and is preferably a copolyether block amide. | 02-19-2015 |
| 20100065982 | High tenacity polyethylene tarn - A process for preparing ultra-high molecular weight polyethylene (UHMWPE) multi-filament yarns having improved tensile properties and the yarns and articles thereby produced. | 03-18-2010 |
| 20100090365 | METHOD FOR THE PRODUCTION OF FIBERS - A process for producing fibers comprises spinning a solution (I) comprising polyurethane dissolved in ionic liquid into a coagulation bath. | 04-15-2010 |
| 20100148391 | Filament of polyglycolic acid resin and process for producing the same - A biodegradable filament of polyglycolic acid resin having practical properties represented by high tensile strength and knot strength is produced. A polyglycolic acid resin having a residual monomer content of below 0.5 wt. % is melt-spun, quenched in a liquid bath of at most 10° C. and then stretched in a liquid bath of 60-83° C. to produce a polyglycolic acid resin filament having a tensile strength of at least 750 MPa and a knot strength of at least 600 MPa. | 06-17-2010 |
| 20100187716 | METHOD FOR PRODUCING LOWER SIZE, HIGH TENACITY AND HIGH MODULUS POLYETHYLENE FIBER - The present invention discloses a process for producing low-titer, high-strength and high-modulus polyethylene fibers, comprising the following steps: dissolving the ultra-high molecular weight polyethylene into paraffin oil with a low viscosity to form a spinning solution with a concentration of 3˜15%; extruding the spinning solution through a thin spinneret with at least 10 orifices having a diameter φ of 0.7˜0.8 mm and a length/diameter ratio of 10˜12, by applying a high pressure in the range of 2.5±1.0 MPa to the spinning solution, such that the fluid in the orifices is extruded at a shear rate of 200˜3 500 sec | 07-29-2010 |
| 20110109008 | WET SPINNING APPARATUS AND METHOD FOR WET SPINNING - Disclosed are a wet spinning apparatus and a wet spinning method, which enable to manufacture fibers with excellent quality by controlling the flow of a coagulation liquid in a spinning bath and which enable to cope with high speed spinning (or high speed drawing). A wet spinning apparatus ( | 05-12-2011 |
| 20110260356 | POLY(TRIMETHYLENE ARYLATE) FIBERS, PROCESS FOR PREPARING, AND FABRIC PREPARED THEREFROM - A fine denier poly(trimethylene arylate) spun drawn fiber is characterized by high denier uniformity. A process for preparing uniform fine denier yarns at spinning speeds of 4000 to 6000 m/min is further disclosed. The poly(trimethylene arylate) fiber hereof comprises 0.1 to 3% by weight of polystyrene. Fabrics prepared therefrom are also disclosed. | 10-27-2011 |
| 20120112381 | METHOD AND DEVICE FOR MELT SPINNING AND COOLING A PLURALITY OF MONOFILAMENTS - The invention relates to a method and a device for melt spinning and cooling a plurality of monofilaments which are extruded through a plurality of openings of a spinneret and guided into a cooling bath. The removal process consists of redirecting the monofilaments within the cooling bath. According to the invention, in order to prevent adhesion and an oblique pull-off, the monofilaments are divided into multiple filament groups after extrusion, said groups consisting of multiple monofilaments, and the filament groups are individually redirected independently of each other within the cooling bath into multiple redirecting positions by separate redirecting sheaves. | 05-10-2012 |
| 20120299213 | Process of Making Bioabsorbable Filaments - Methods for making bioabsorbable copolymer filaments are provided herein. The methods include drying the polymer pellets to be extruded, melt extrusion of copolymer components, stretching the filaments in one or more draw steps and permitting the drawn filaments to relax. The copolymer preferably contains units derived from glycolide or glycolic acid and units derived from an alkylene carbonate, such as, for example, trimethylene carbonate. | 11-29-2012 |
| 20140232036 | DRY-WET SPINNING DEVICE AND METHOD FOR MANUFACTURING SYNTHETIC FIBER - There is provided a dry-wet spinning device for an acrylic precursor fiber bundle for manufacturing carbon fibers, the device enabling stable spinning by making the coagulability of spun yarn ( | 08-21-2014 |
| 20160160390 | PREPARATION METHOD OF FIBER AND SPINNING VISCOSE - A preparation method of a fiber is provided. In the preparation method of the fiber, a polymer is dissolved in a mixing solution of an ionic liquid and a salt to form a spinning viscose, wherein the salt includes KCl, KBr, KOAc, NaBr, ZnCl | 06-09-2016 |
| 264180000 | Liquid of bath is in motion | 2 |
| 20080290549 | Process for the preparation of polymer yarns from ultra high Molecular weight homopolymers or copolymers, polymer yarns,molded polymer parts, and the use of polymer yarns - A process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers, wherein the process includes the following steps:
| 11-27-2008 |
| 20080290550 | Process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers, polymer yarns, molded polymer parts, and the use of polymer yarns - A process for the preparation of polymer yarns from ultra high molecular weight homopolymers or copolymers, wherein the process includes the following steps: | 11-27-2008 |
| 264183000 | Reactive bath | 19 |
| 20110140301 | PROCESS FOR PRODUCING A PLURALITY OF HIGH-STRENGTH, HIGH MODULUS AROMATIC POLYAMIDE FILAMENTS - A process for producing a plurality of high strength, high modulus aromatic polyamide filaments that includes extruding an acid solution containing at least 15% by weight of an aromatic polyamide through linearly arranged orifices in a spinneret to provide a warp of filaments, passing the warp of filaments through a layer of non-coagulating fluid into a coagulation bath and subsequently passing the warp through a spin tube, the spin tube having an elongated cross section with at least two opposite sides being parallel to the filament warp with the length of these sides being at least as long as the width of the filament warp, jetting additional coagulating liquid at a constant flow rate about the filaments in a downward direction at an angle between 15° and 75° with respect to the filaments, the jetted coagulating liquid moving downward with the warp of filaments through the spin tube at a velocity of about 50% to 100% of the velocity of the filaments, the coagulating liquid being jetted through a jet channel from either one side of the spin tube which is parallel to the filament warp, and the jet channel having at least the same width as the filament warp. | 06-16-2011 |
| 20110156303 | SPUNBOND WETLAID METHOD FOR PRODUCING NON-WOVEN FABRICS FROM NATURAL CELLULOSE - The present invention provides a “spunbond wetlaid method for producing non-woven fabrics from natural cellulose” using pulp as raw material and N-methylmorpholine N-oxide (NMMO) as solvent for dissolving into dope. Then, the dope is extruded out of a spinneret to form filament bundle by spunbond method. The dope is extruded out of a spinneret bank of grouped spinnerets to form filament bundle for further stretching process under quench condition. The filament bundle is coagulated with regeneration in a coagulating solution. The coagulated filament bundle is rapidly stretched under high pressure by an air draw-off machine. The stretched filament bundle is collected and stacked on a collecting net as web nonwoven. After post treatments of water rinsing, hydro-entangled needle punching, drying, winding-up and the like have been orderly applied then final product of nonwoven fabrics with continuous filament are produced from natural cellulose. | 06-30-2011 |
| 20130009337 | PROCESS FOR SPINNING GRAPHENE RIBBON FIBERS - A graphene ribbon fiber manufacturing process, where a coagulation medium flows in the same direction as the graphene ribbon fibers. The process for spinning graphene ribbon fibers starts with unzipping carbon nanotubes to form graphene ribbons, purifying and drying the graphene ribbons and subsequent dissolving of the graphene ribbons in a suitable solvent, preferably a super acid to form a spin-dope. The spin-dope is spun such that the accrued fibers are guided into a coagulation medium, also known as anti-solvent, where the spun or accrued fibers are coagulated. The coagulated graphene ribbon fibers are stripped, neutralized and washed and wound on bobbins. | 01-10-2013 |
| 20130161861 | PROCESS FOR PREPARING POLYSACCHARIDE FIBERS FROM AQUEOUS ALKALI METAL HYDROXIDE SOLUTION - This invention pertains to a novel processing for preparing fibers from poly(α(1→3)glucan). The fibers prepared according to the invention, have “cotton-like” properties, are useful in textile applications, and can be produced as continuous filaments on a year-round basis. The process comprises solution spinning a 5-20% solids concentration of poly(α(1→3)glucan) in an aqueous alkali metal hydroxide, in particular NaOH at concentration of 2 to 10 weight-%, and coagulating the spun fiber in an acid coagulation liquid. | 06-27-2013 |
| 20130228949 | FABRICATION OF NATURAL CELLULOSE FIBER WITH FLAME-RETARDING CAPABILITY - A fabrication of natural cellulose fiber with flame-retarding capability comprises following steps. Blend pulp and solvent of N-methylmorpholine N-oxide (NMMO) to form slurry. Evaporate extra water content from slurry by a Thin Film Evaporator (TFE) to form dope. By Dry-Jet Wet Spinning, spin and extrude dope for coagulating and regenerating. Water-rinse and dry to form natural cellulose fiber. Soaking roll natural cellulose fiber by flame retardant of N-(hydroxymethyl)-3-(methoxy phosphorus acyl). Orderly dry, bake, neutralize, soaping clean, water rinse, baking dry, soaking rolled, alkaline clean, water rinse, dry and oil the natural cellulose fiber to produce natural cellulose fiber of flame retarding capacity. Because of cross-linking reaction for the flame retardant of N-(hydroxymethyl)-3-(methoxy phosphorus acyl) with natural cellulose fiber, the flame-retarding capability thereof meet requirements of testing standards in American ASTM D6413-1999 and ASTM D2863-1995. Moreover, the wastes thereof meet the requirements of environment protections without harm. | 09-05-2013 |
| 264184000 | Synthetic resin containing extrudant | 11 |
| 20080290551 | Spinning Pack for Dry-Wet Spinning, Diverting Guide for Fiber Bundle, and Apparatus and Method for Producing Fiber Bundle - A spinning pack for dry-wet spinning is provided with a spinneret having not less than 6,000 spinning holes and having an aspect ratio Ra of not less than 2.5 for a spinning hole array of the spinning holes. In a device and method for producing a fiber bundle, a drawing angle of single fibers formed by the single fibers and a spinneret surface of a spinneret is in a range from 87° to 92°, the single fibers being fibers discharged from the outermost spinning holes located in the long side direction of the spinneret and running to a fiber bundle diverting guide provided in a coagulation bath. Further, a drawing angle of single fibers formed by the single fibers and the spinneret surface of the spinneret is in a range from 83° to 87°, the single fibers being fibers discharged from the outermost spinning holes located in the short side direction of the spinneret and running to the fiber bundle diverting guide provided in the coagulation bath. | 11-27-2008 |
| 20090160079 | Single stage drawing for MPD-I yarn - The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades. | 06-25-2009 |
| 20090160080 | High-speed meta-aramid fiber production - The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades. | 06-25-2009 |
| 20090160081 | Rapid plasticization of quenched yarns - The invention relates to a continuous dry spinning process for preparing a fiber from a polymer solution having concentrations of polymer, salt, solvent and water. After the fiber is extruded and quenched, the fiber is placed in contact with a conditioning solution comprising concentrations of solvent, salt, and water. The conditioning solution acts upon the fiber to plasticize the fiber prior to being drawn. The conditioning solution has concentrations of solvent, salt, and water so that the fiber is plasticized to the extent necessary for drawing but does not plasticize the fiber to such an extent as to re-dissolve the fiber into a polymeric solution. A heat-treated fiber manufactured from this process has improved shrinkage and can be colored to darker shades. | 06-25-2009 |
| 20090243143 | MODIFIED POLYACRYLONITRILE FIBER AND METHOD OF PREPARING THE SAME - A modified polyacrylonitrile fiber and its preparation process and use are disclosed. An animal hair micro powder is used as a modifier for polyacrylonitrile polymer. The weight percent of a monomer composition is as follows: acrylonitrile monomer 50.0-98.8%, initiator 0.1-0.4%, animal hair micro powder 1.0-50.0%. The preparation process of the modified polyacrylonitrile fiber comprises the following steps: 1. preparing the animal hair micro powder suspension, 2. preparing spinning dope of the modified polyacrylonitrile fiber, 3. preparing the modified polyacrylonitrile fiber. The fiber is suitable for making artificial synthetic hair product such as hairpieces, and resembles well natural human hair. | 10-01-2009 |
| 20100072658 | PROCESS AND APPARATUS FOR THE PRODUCTION OF YARN - The present invention concerns a process and apparatus for spinning polymer filaments comprising extruding a polymer solution to form one or more filaments into an air gap above a coagulation liquid, where the filaments are subject to strain; forming a downward stream of liquid and filaments by contacting the polymer solution with a coagulation liquid; passing the filaments and liquid through a quench tube; contacting the liquid with a surface such that the downward force of gravity on the liquid does not increase the strain of the filaments in the air gap; and separating the liquid from the filaments. | 03-25-2010 |
| 20120168983 | Method for Preparing Meta-Aramid Fibers - A method of preparing meta-aramid fibers includes the operations of polymerization, neutralization and spinning using m-phenylenediamine and isophthaloyl chloride as raw materials, wherein the neutralizing agent is added in an amount that is sufficient only for neutralizing a part of hydrogen chloride, so that the resultant spin dope of polyisophthaloyl metaphenylene diamine contains salts produced by the neutralization reaction and a part of unneutralized hydrogen chloride. The method of the invention has a short production line with reduced amount of the neutralizing agent, therefore both the costs of raw materials and the production energy consumption are saved. The fibers prepared according to the method of the invention have reduced gray scale to improve the electrical insulation properties of the fibers. | 07-05-2012 |
| 20120228797 | Methods of Continuously Manufacturing Polymide Fibers - Methods for making high quality polyimide fibers suitable for continuous industrial production are described. Polyimide fibers are continuously prepared from a polyamic acid solution through sequentially spinning the polyamic acid solution by either a wet or a dry-wet process, coagulating, drying or drying after washing, thermally treating and stretching the resulting polyamic acid fibers to obtain polyimide fibers, and winding polyimide fibers as prepared into rolls. | 09-13-2012 |
| 20130075950 | COPOLYMER FIBERS AND YARNS AND PROCESSES FOR MAKING SAME - The present invention concerns methods for obtaining high-tenacity aramid yarn, wherein the yarn is made of a copolymer obtained from a mixture of monomers comprising 5-(6)-amino-2-(p-aminophenyl)benzimidazole, an aromatic para-diamine, and an aromatic para-diacid. The method comprises: a) spinning said copolymer from an inorganic acid solvent to produce the aramid yarn; b) washing the yarn with a basic aqueous solution for at least 5 seconds; and c) heating the yarn; wherein the yarn is heated in at least two process steps, comprising (i) in a first step the yarn is heated at a temperature of 200 to 360° C. at a tension of at least 0.2 cN/dtex, followed by (ii) a second step wherein the yarn is heated at a temperature of 370 to 500° C. at a tension of less than 1 cN/dtex. | 03-28-2013 |
| 20130168895 | FIBER COMPOSITION COMPRISING 1,3-GLUCAN AND A METHOD OF PREPARING SAME - The present invention is a solution comprising poly(α(1→3) glucan) and an ionic liquid. The solution can further contain a non-solvent that is water or an ionic liquid. The solution is suitable for use as a spinning solution for the preparation of fibers of poly(α(1→3) glucan) without the requirement of first derivatizing the poly(α(1→3) glucan). | 07-04-2013 |
| 20150021812 | PROCESS FOR PREPARING YARN DERIVED FROM ARAMID COPOLYMER FIBER HAVING LOW RESIDUAL SULFUR - The present invention concerns processes for producing a yarn comprising polymer comprising imidazole groups, the process having the following steps: (a) spinning a solution of polymer in sulfuric acid to give rise to a plurality of dope filaments; (b) coagulating the plurality of dope filaments into a multi-filament as-spun yarn; and (c) washing the as-spun multi-filament yarn with an aqueous acid comprising a halide or an aqueous salt comprising a halide or combination thereof. | 01-22-2015 |
| 264186000 | Carbohydrate containing extrudant | 1 |
| 264187000 | Cellulose derivatives | 1 |
| 264188000 | Viscose | 1 |
| 20090121380 | Method of Obtaining Yarns Or Fiber Sheets Of Carbon From A Cellulose Precursor - A method of obtaining fiber textures of carbon from a cellulose precursor includes the steps of: spinning cellulose filaments ( | 05-14-2009 |
| 264202000 | Protein containing extrudant | 2 |
| 20120273993 | METHOD OF GENERATING COLLAGEN FIBERS - A method of generating a collagen fiber is disclosed. The method comprises extruding a solution of liquid crystalline collagen into a coagulating solution, thereby generating the collagen fiber. Fibers generated thereby are also disclosed as well as scaffolds comprising such fibers. | 11-01-2012 |
| 20150292120 | APPARATUS AND METHODS FOR PRODUCING FIBERS FROM PROTEINS - Methods and apparatuses for preparing protein fibers (biofilaments) from recombinant biofilament proteins are disclosed. The methods are particularly useful for spinning fibers of spider silk or silkworm silk proteins from recombinant sources and may be used to spin such fibers for use in the manufacture of industrial and commercial products. | 10-15-2015 |
| 264203000 | Liquid is solvent extractive | 2 |
| 20080284054 | Use of Aqueous Naoh/Thiourea Solution in Pilot-Scale Production of Cellulose Products - The present invention relates to the use of an aqueous sodium hydroxide/thiourea solution, specifically to the use of an aqueous sodium hydroxide/thiourea solution for pilot-scale production of cellulose products, wherein sodium hydroxide constitutes 8.1%-12.0% of the total weight of the aqueous solution, thiourea constitutes 3.0%-6.0% of the total weight of the aqueous solution, and said cellulose products include regenerated cellulose filaments, films, nonwovens, as well as composite fibers and/or functional materials of protein/cellulose, chitin/cellulose, Konjac Glucomannan/cellulose, nano-crystal particle/cellulose, etc. | 11-20-2008 |
| 20140291887 | METHOD FOR MAKING GAS-SEPARATION MEMBRANES HAVING IMPROVED FLUX AND SELECTIVITY - A polymeric fiber for use in gas separation is formed from a spin dope which includes solvent and non-solvent materials. The fiber is passed through a quench bath, and then a leach bath, in which the solvent and non-solvent are removed. The quench bath and the leach bath include sets of rollers which transport the fiber through the system. Each set of rollers in the leach bath operates at a speed which is greater than or equal to the speed of the rollers which are immediately upstream. Thus, the fiber is stretched, in different amounts, at the same time that the solvent and non-solvent are being removed, and while the fiber is still wet. The resulting fiber has been found to exhibit superior flux and selectivity properties. | 10-02-2014 |
| 264178000 | Filaments | 10 |
| 20090160078 | DEVICE AND METHOD FOR PREPARATION OF A PROFILED ELEMENT FROM AN ELASTOMERIC THERMOPLASTIC GEL - A device for preparing a flat profiled element from an elastomeric thermoplastic gel includes: | 06-25-2009 |
| 20120104647 | PROCESS AND APPARATUS FOR PRODUCING A STRAND-LIKE EXTRUDATE - A process for producing a strand-like extrudate ( | 05-03-2012 |
| 20130147087 | MANUFACTURING METHOD OF BIODEGRADABLE NET-SHAPED ARTICLES - A manufacturing method of biodegradable net-shaped articles includes: (a) preparing a biodegradable mixture; (b) granulating the mixture into plastic grains; (c) baking the plastic grains in an oven at 60° C. to 70° C. for 3 to 4 hours; (d) melting and extruding the plastic grains by a screw-type extruder so as to obtain a net-shaped preform; and (e) cooling and thereby finalizing the net-shaped preform in a cooling bath at 15° C. to 30° C. so as to obtain the net-shaped article. | 06-13-2013 |
| 20130193609 | METHOD AND DEVICE FOR PRODUCING STRAND-SHAPED GOODS - The invention relates to a method and to a device for producing strand-shaped goods in the form of small bands, fiber strands, monofilaments, or films, which are extruded from a polymer melt. After cooling in a cooling bath, a thermal treatment occurs between rolling feed units, wherein the goods are brought into contact with a hot medium. In order to be able to perform an individual thermal treatment depending on the thermoplastic material, the hot medium is provided optionally in the form of hot air or hot water according to the invention. For this purpose, the heating apparatus is formed from a forced-air oven and a water bath apparatus, which can be optionally activated to thermally treat the goods. | 08-01-2013 |
| 20150048541 | METHOD FOR EXTRUDING A POLYMER IN THE PRESENCE OF WATER - The invention relates to a method for converting a polycondensed elastomeric thermoplastic polymer, including a step of extruding the polycondensed elastomeric thermoplastic polymer in the presence of water. The polycondensed elastomeric thermoplastic polymer is in particular chosen from copolymer block amides, copolyethers or copolyester block urethanes, copolyether block esters and the mixtures thereof, and is preferably a copolyether block amide. | 02-19-2015 |
| 20100065982 | High tenacity polyethylene tarn - A process for preparing ultra-high molecular weight polyethylene (UHMWPE) multi-filament yarns having improved tensile properties and the yarns and articles thereby produced. | 03-18-2010 |
| 20100090365 | METHOD FOR THE PRODUCTION OF FIBERS - A process for producing fibers comprises spinning a solution (I) comprising polyurethane dissolved in ionic liquid into a coagulation bath. | 04-15-2010 |
| 20100148391 | Filament of polyglycolic acid resin and process for producing the same - A biodegradable filament of polyglycolic acid resin having practical properties represented by high tensile strength and knot strength is produced. A polyglycolic acid resin having a residual monomer content of below 0.5 wt. % is melt-spun, quenched in a liquid bath of at most 10° C. and then stretched in a liquid bath of 60-83° C. to produce a polyglycolic acid resin filament having a tensile strength of at least 750 MPa and a knot strength of at least 600 MPa. | 06-17-2010 |
| 20100187716 | METHOD FOR PRODUCING LOWER SIZE, HIGH TENACITY AND HIGH MODULUS POLYETHYLENE FIBER - The present invention discloses a process for producing low-titer, high-strength and high-modulus polyethylene fibers, comprising the following steps: dissolving the ultra-high molecular weight polyethylene into paraffin oil with a low viscosity to form a spinning solution with a concentration of 3˜15%; extruding the spinning solution through a thin spinneret with at least 10 orifices having a diameter φ of 0.7˜0.8 mm and a length/diameter ratio of 10˜12, by applying a high pressure in the range of 2.5±1.0 MPa to the spinning solution, such that the fluid in the orifices is extruded at a shear rate of 200˜3 500 sec | 07-29-2010 |
| 20110109008 | WET SPINNING APPARATUS AND METHOD FOR WET SPINNING - Disclosed are a wet spinning apparatus and a wet spinning method, which enable to manufacture fibers with excellent quality by controlling the flow of a coagulation liquid in a spinning bath and which enable to cope with high speed spinning (or high speed drawing). A wet spinning apparatus ( | 05-12-2011 |
| 20110260356 | POLY(TRIMETHYLENE ARYLATE) FIBERS, PROCESS FOR PREPARING, AND FABRIC PREPARED THEREFROM - A fine denier poly(trimethylene arylate) spun drawn fiber is characterized by high denier uniformity. A process for preparing uniform fine denier yarns at spinning speeds of 4000 to 6000 m/min is further disclosed. The poly(trimethylene arylate) fiber hereof comprises 0.1 to 3% by weight of polystyrene. Fabrics prepared therefrom are also disclosed. | 10-27-2011 |
| 20120112381 | METHOD AND DEVICE FOR MELT SPINNING AND COOLING A PLURALITY OF MONOFILAMENTS - The invention relates to a method and a device for melt spinning and cooling a plurality of monofilaments which are extruded through a plurality of openings of a spinneret and guided into a cooling bath. The removal process consists of redirecting the monofilaments within the cooling bath. According to the invention, in order to prevent adhesion and an oblique pull-off, the monofilaments are divided into multiple filament groups after extrusion, said groups consisting of multiple monofilaments, and the filament groups are individually redirected independently of each other within the cooling bath into multiple redirecting positions by separate redirecting sheaves. | 05-10-2012 |
| 20120299213 | Process of Making Bioabsorbable Filaments - Methods for making bioabsorbable copolymer filaments are provided herein. The methods include drying the polymer pellets to be extruded, melt extrusion of copolymer components, stretching the filaments in one or more draw steps and permitting the drawn filaments to relax. The copolymer preferably contains units derived from glycolide or glycolic acid and units derived from an alkylene carbonate, such as, for example, trimethylene carbonate. | 11-29-2012 |
| 20140232036 | DRY-WET SPINNING DEVICE AND METHOD FOR MANUFACTURING SYNTHETIC FIBER - There is provided a dry-wet spinning device for an acrylic precursor fiber bundle for manufacturing carbon fibers, the device enabling stable spinning by making the coagulability of spun yarn ( | 08-21-2014 |
| 20160160390 | PREPARATION METHOD OF FIBER AND SPINNING VISCOSE - A preparation method of a fiber is provided. In the preparation method of the fiber, a polymer is dissolved in a mixing solution of an ionic liquid and a salt to form a spinning viscose, wherein the salt includes KCl, KBr, KOAc, NaBr, ZnCl | 06-09-2016 |
