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| Number | Title | Issue Date |
| 7931843 | Process for producing polyphenylene sulfide filament yarns The present invention relates to a process for producing a polyphenylene sulfide multifilament yarn, a polyphenylene sulfide multifilament yarn and the use of a polyphenylene sulfide multifilament yarn. The process for producing a polyphenylene sulfide multifilament... | 04/26/2011 |
| 7846363 | Process for the preparation of UHMW multi-filament poly(alpha-olefin) yarns A process for preparing ultra-high molecular weight poly(alpha-olefin) (UHMWPO) multi-filament yarns having improved tensile properties at higher productivity. The process includes drawing a solution yarn, then drawing a gel yarn and then drawing a dry yarn continuo... | 12/07/2010 |
| 7435370 | Process of making a fiber A fiber and a process for obtaining same from a high-modulus polyethylene, extrudable in state-of-the-art equipment and in the absence of previous solubilization in any kind of organic solvent is described, the process comprising providing such a polyethylene, intro... | 10/14/2008 |
| 7261849 | Tacky polymer melt spinning process A method for high speed melt spinning of binder fiber by melting a polymer having a melting temperature range of greater than 0° C. to 160° C., spinning said polymer at a speed of greater than about 2000 meters per minute to form the binder fibers; and winding the... | 08/28/2007 |
| 7214335 | Solution containing cellulose dissolved in N-methylmorpholine-N-oxide and high tenacity lyocell multifilament using the same This invention relates to a method of preparing cellulose solution which is homogeneous at relatively low temperature, in which a small amount of cellulose powder or polyvinylalcohol is dissolved in the liquid-state, concentrated N-methylmorpholine-N-oxide (hereinaf... | 05/08/2007 |
| 7189346 | Polybenzazole fibers and processes for their preparation The present invention relates to polybenzazaole (PBZ) fibers and processes for the preparation of such fibers. The invention further relates to yarns, fabrics, and articles incorporating fibers of this invention, and processes for making such yarns, fabrics, and art... | 03/13/2007 |
| 7108818 | Dimensionally stable polyester yarn for high tenacity treated cords A spun polyester fiber, a drawn polyester yarn, and methods for making them. Polyethylene terephthalate yarn is prepared by extruding a molten melt-spinnable polyethylene terephthalate having an intrinsic viscosity of at least about 0.8 through a shaped extrusion or... | 09/19/2006 |
| 7070723 | Method for spin-drawing of melt-spun yarns A method is provided for simultaneous spin-drawing of continuous yarns consisting of one or more filaments, comprising the steps in which a melt of a thermoplastic material is fed to a spinning device, the melt is extruded through a spinneret by means of extrusion o... | 07/04/2006 |
| 6890466 | Elastically stretchable nonwoven fabric and process for making the same An elastically stretchable nonwoven fabric including thermoplastic elastomer filaments; the filaments being heat-sealed and/or mechanically intertwined together to form the nonwoven fabric that has crimped regions and non-crimped regions wherein each of the crimped ... | 05/10/2005 |
| 6824717 | Method for melt spinning filament yarns A method of melt spinning a group of multifilament yarns (1) from a polymer melt, wherein each group of yarns (10) is formed from a plurality of filaments (4) that are extruded through a nozzle bore (3) and withdrawn by a withdrawal means... | 11/30/2004 |
| 6764623 | Process of making polyester filamentary yarn for tire cords Polyester multi-filamentary yarn, useful as tire reinforcement, is produced by melting polyester resin at 290° C. or below including at least 90 mol % of polyethylene terephthalate with intrinsic viscosity of 0.7-1.2; filtering the molten resin for filtering retent... | 07/20/2004 |
| 6723265 | Method for producing polyester-based combined filament yarn A polymer of a kind different from a polyester in an amount within the range of 0.3 to 5.0% by weight based on the polyester is added to the polyester, and the resulting composition is melt-extruded from the same pack. The extruded filament group including polyester... | 04/20/2004 |
| 6692671 | Process for producing a polyester fiber A process for producing a polyester fiber by melt spinning a polyester having at least 90% or more by weight of poly(trimethylene terphthalate), the process including rapidly cooling to solidify molten filaments extruded from a spinning nozzle, winding th... | 02/17/2004 |
| 6623681 | Polyester fiber and process for preparing the same Intermediate polyester fibre and method for the production thereof, characterized in that highly oriented undrawn polyester yarn with a degree of crystallinity in a specified range is passed under a tension of 0.3×10-2 g/d to 5.0×10-2 | 09/23/2003 |
| 6613257 | Process for making load limiting yarn A process for making load limiting yarn comprising making block copolymer and then spinning the block copolymer into yarn. The process employs a twin screw extruder and comprises (A) forwarding aromatic polyester melt to an injection position in a twin sc... | 09/02/2003 |
| 6569987 | Process for producing meta-aromatic polyamide fiber To produce meta aramid filaments having a good quality from a polymer solution of a meta aramid produced by a solution polymerization method, with high efficiency, (1) a meta aramid is prepared by polymerization-reacting a aromatic meta-diamine with a aro... | 05/27/2003 |
| 6569366 | Process for producing meta-type wholly aromatic polyamide filaments A meta-type wholly aromatic polyamide containing, as principal repeating units, meta-phenylenediamineisophthalamide units is dissolved in an amide compound solvent; the resultant polymer solution is subjected to a wet-spinning procedure wherein the polyme... | 05/27/2003 |
| 6551545 | Method and apparatus for melt spinning a multifilament yarn A method and an apparatus for melt spinning a multifilament yarn from a thermoplastic material, wherein a spinneret extrudes the thermoplastic material to strandlike filaments, which are initially in liquid form and then cooled to cause their solidificati... | 04/22/2003 |
| 6511624 | Process for preparing industrial polyester multifilament yarn Disclosed is a process for preparing a high modulus and a low shrinkage polyester multifilament yarn of 1000 deniers or more at a spinning rate of 2,000 m/min or more, comprising the steps of: melt-extruding polyester chips having an intrinsic viscosity o... | 01/28/2003 |
| 6444151 | Apparatus and process for spinning polymeric filaments A melt spinning apparatus for spinning continuous polymeric filaments including a first stage gas inlet chamber adapted to be located below a spinneret and optionally a second stage gas inlet chamber located below the first stage gas inlet chamber. The ga... | 09/03/2002 |
| 6403006 | Process of making dimensionally stable polyester yarn for high tenacity treated cords Polyethylene terephthalate yarn is prepared by spinning under high stress conditions in the transition region between oriented-amorphous and oriented-crystalline undrawn yarns by selection of process parameters to form an undrawn yarn that is a crystallin... | 06/11/2002 |
| 6368533 | Process for forming films, fibers and base webs from thermoset polymers A process for forming fibers, films and fibrous webs from thermoset polymers is disclosed. The process includes first forming an energy activatable prepolymer composition. The prepolymer composition is extruded through a die in order to form polymeric art... | 04/09/2002 |
| 6332993 | Process of making heat-retaining fibers A method for making heat-retaining fiber and fabrics. According to the present invention, the white conductive particles and the white particles with good radiating efficiency of far-infrared radiation are added in fiber-forming polymers to obtain the mix... | 12/25/2001 |
| 6290888 | Highly oriented polymer fiber and method for making the same The present invention provides a highly oriented aramid fiber with high tensile strength, high tensile modulus and low breakage elongation by spinning liquid crystal polymers such as aramids and drafting the polymer in or adjacent to a first coagulating b... | 09/18/2001 |
| 6277320 | Melt spinning method and its apparatus A melt spinning apparatus that prevents filaments passing through an unstable area from contacting one another. In a melt spinning method for thinning and solidifying each molten filament F ejected from a plurality of nozzles to obtain a yarn Y comprising... | 08/21/2001 |
| 6251322 | Synthetic polyester absorbent materials The invention provides synthetic polymeric fibers which have utility as temporary acquisition/distribution absorbent structures and permanent storage/distribution absorbent structures in a wide range of absorbent products such as diapers, feminine napkins... | 06/26/2001 |
| 6159597 | Centrifugal spinning process for spinnable solutions The invention pertains to a process for spinning fibers or filaments from a spinnable solution using a centrifuge of which the wall has one or more spinning orifices, in which process the spinnable solution is jetted from the centrifuge into a coagulant i... | 12/12/2000 |
| 6149847 | Method of and apparatus for the production of polyester yarn Polyester yarn is made by melt spinning the polyester filaments which are then cooled at least to solidification and heated by counterflow with prestretching to a crystallinity in excess of 24%. The prestretched filaments are gathered and stretched to aft... | 11/21/2000 |
| 6129879 | Propylene polymer fibers and yarns Process for treating a textile product comprising propylene polymer fibers comprises heating the textile product with the fibers in a substantially relaxed state at at least one temperature that is below the melting point of the propylene polymer but no m... | 10/10/2000 |
| 6103162 | Process for producing cellulose fibres The invention relates to a process for producing flexible cellulose fibres by spinning solutions of the cellulose through spinnerets over an air layer in an amine oxide-containing aqueous and/or alcoholic regenerating bath followed by drying, in which the... | 08/15/2000 |
| 6093355 | Manufacture of extruded articles Use in the manufacture of extruded lyocell articles of cellulose having a value of Pipe Flow Index (as defined) to Jet Flow Index (as defined) in the range from 0.85 to 6 can offer a number of advantages, particularly in cellulose solution transport and i... | 07/25/2000 |
| 6042769 | Lyocell fibre and a process for its manufacture The fibrillation tendency of solvent-spun fiber can be increased by subjecting the fiber to a treatment which reduces its degree of polymerisation by about 200 units or more. Suitable methods of treatment include severe bleaching, for example application ... | 03/28/2000 |
| 6042767 | Method of producing a cellulosic yarn In a process for manufacturing a cellulosic yarn by spinning of a solution of cellulose in a tertiary amine oxide, the solution possibly containing water and/or a stabilizer, to form fibers or filaments, coagulating, washing, and drying, the yarns are tre... | 03/28/2000 |
| 6036895 | Process and device for the formation of monofilaments produced by melt-spinning A continuous process and apparatus for the production of melt-spun monofilaments having a diameter of 60 μm to 2500 μm from fiber-forming polymers, wherein the polymer melt is spun into air from a spinning head, laterally quenched in a spinning cabinet ... | 03/14/2000 |
| 5997790 | Process for the preparation of regenerated cellulose filaments The disclosure describes a process for the preparation of regenerated cellulose filaments from an anisotropic solution including cellulose formate, phosphoric acid, and formic acid in which the formed cellulose formate filaments are dried to a moisture co... | 12/07/1999 |
| 5985192 | Process for the manufacture of spiralled bristles The invention relates to a method for the manufacture of screwlike bristles by extruding monofilaments. In order to provide a method with which screwlike bristles can be inexpensively manufactured in the same way as conventional bristles with an identical... | 11/16/1999 |
| 5968432 | Process of making a fiber A process of making a fiber includes the sequential steps of extruding as a stream solution of a polymer having a polymer concentration of 4-24 weight % into a non-coagulating fluid, stretching the stream while in the non-coagulating fluid, passing the st... | 10/19/1999 |
| 5965084 | Process for producing non-woven fabrics of ultrafine polyolefin fibers A process for producing a non-woven fabric of ultrafine polyolefin fibers by subjecting a web of splittable conjugate polyolefin fibers to a water needle processing, and non-woven fabric thus obtained are described. The polyolefin composite fibers, contai... | 10/12/1999 |
| 5965073 | Process and device for producing polyester yarns Polyester yarn is produced from melt spun filament by prestretching the filaments individually in counterflow with a gaseous medium and then afterstretching the polyester filaments with an individual titer of 1.0 dtex to 7.5 dtex with a stretching ratio o... | 10/12/1999 |
| 5958320 | Process for the manufacture of cellulosic fibers; and cellulosic fibers Cellulosic fibers made from a solution of cellulose in a tertiary amine oxide and optionally water and which have a low tendency to fibrillate are produced by coagulating the fibers in at least two stages. The residence time of the fibers in the first coa... | 09/28/1999 |
