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7344668 Process for drawing gel-spun polyethylene yarns  
A process for drawing essentially diluent-free gel-spun polyethylene multi-filament yarns in a forced convection air oven and the drawn yarns produced thereby, The process conditions of draw ratio,...
7270777 Method and apparatus for producing a low-shrinking smooth yarn  
A method and apparatus for producing a high-strength and low-shrinkage synthetic flat yarn. After melt spinning, the filaments are combined to a yarn and drawn. Subsequently, the yarn is compressed...
7258758 Strong high loft low density nonwoven webs and laminates thereof  
High loft, low density nonwoven webs suitable for use in a variety of applications requiring strong fabric layers are produced by forming substantially continuous, spunbond, crimped, bicomponent...
7128863 Heat-shrinkable polyester film having excellent crystallinity  
Disclosed herein is a heat-shrinkable co-polyester film having terephthalic acid and ethylene glycol as main components and containing 1,4-cyclohexanedimethanol at the amount of 3–40 mol %. The...
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...
7090792 Method of selectively shaping hollow fibers of heat exchange catheter  
A group of multiple hollow fibers may be shaped to introduce angular divergence among the fibers, or to introduce a selected longitudinal oscillation into the fibers. In one shaping technique, the...
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...
7056461 Process of making polyester multifilament yarn  
A method of producing a polyethylene terephthalate-based polyester fiber includes spinning polyethylene terephthalate based polyester to produce an undrawn yarn with an intrinsic viscosity of 0.83...
7033530 Process for preparing poly(trimethylene terephthalate) bicomponent fibers  
A side-by-side or eccentric sheath-core bicomponent fiber wherein each component comprises a different poly(trimethylene terephthalate) composition and wherein at least one of the compositions...
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...
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...
7025919 Syndiotactic polypropylene fibers  
A process for the production of partially oriented polypropylene fibers from syndiotactic polypropylene. Syndiotactic polypropylene is heated to a molten state and extruded to form a fiber preform....
7022280 Process of making a flat yarn from polyoxymethylene film  
A flat yarn of a high strength and a high modulus of elasticity, being excellent in solvent resistance, thermal stability and resistance to bending fatigue is provided. The flat yarn comprises...
7022273 Process for making stable polytrimethylene terephthalate packages  
A process for the production and for the winding of one polyester yarn, preferably multi-filament yarn, which comprises at least about 85 weight %, in relation to the total weight of the polyester...
7001556 Nanotube/matrix composites and methods of production and use  
A nanotube/matrix composite mixture, and a method of producing it, which can be used to form a composite material such as a drawn fiber having an increased strength over a drawn fiber formed from...
6984350 Method of and apparatus for manufacturing a web having filaments aligned in a transverse direction  
An apparatus for manufacturing a transversely aligned web has a spinning device provided with a plurality of nozzles for extruding molten polymer as filaments, and a conveyor on which the filaments...
6967057 Poly(trimethylene dicarboxylate) fibers, their manufacture and use  
A process for preparing poly(trimethylene terephthalate) fibers including (a) providing a poly(trimethylene terephthalate) composition comprising about 0.05 to about 10 weight % ionomer and (b)...
6923925 Process of making poly (trimethylene dicarboxylate) fibers  
A process for preparing poly(trimethylene dicarboxylate) multifilament yarns and monofilaments. One process for preparing poly(trimethylene dicarboxylate) multifilament yarns includes (a) providing...
6921803 Poly(trimethylene terephthalate) fibers, their manufacture and use  
A process for preparing poly(trimethylene terephthalate) fibers comprising (a) providing a poly(trimethylene terephthalate) composition comprising about 0.05 to about 5 mole % tetramethylene...
6921504 Process of making flame retarding polypropylene fiber  
A method for producing a flame retarding polypropylene fiber having both good flame retardancy and good fiber strength, and which generates no toxic gas, includes mixing 0.4% by wt. or more of a...
6918750 Arrangement for the continuous production of a filament nonwoven fibrous web  
A spun-bond web-making apparatus has the cooling passage below the spinneret provided with a plurality of air chamber sections which are supplied with air at different temperatures, the cooling...
6911174 Process of making multicomponent fiber incorporating thermoplastic and thermoset polymers  
The present invention provides a multicomponent fiber containing at least two polymer components arranged in distinct zones or segments across the cross-section of the fiber wherein at least one...
6908579 Process for making a yarn having a spin finish  
A spin finish which enhances yarn processability and contributes to improved yarn performance. The spin finish is advantageous when compared with conventional spin finishes applied to industrial...
6899836 Process of making polyamide filaments  
The present invention relates to methods for making polyamide filaments, such as nylon 6,6, having high tensile strength. The invention also relates to yarns and other articles formed from such...
6887423 Process for making a stretchable nonwoven web  
A process for preparing nonwoven webs including multiple component continuous filaments having high levels of three-dimensional helical crimp utilizing draw rolls to provide a high degree of...
6887414 Method for manufacturing polyester fibers  
Method for manufacturing polyester fibers comprising melt-extruding a polymer without increasing an intrinsic viscosity of the polymer during spinning to minimize a reduction of the intrinsic...
6887410 Parallel spinning process involving the intermingling of threads between galettes and a corresponding spinning installation therefor  
A parallel spinning process, in particular for filaments, e.g. for textile or industrial applications, made from polymers such as, for example, PET or PA, in each case having a thread interlacing...
6881375 Method of forming a 3-dimensional fiber into a web  
A method includes the steps of co-extruding a first component and a second component. The first component has a recovery percentage R 1 and the second component has a recovery percentage R 2 ,...
6878327 Process of making polypropylene fibers  
A method for the production of polypropylene fibers from a propylene polymer including isotactic polypropylene produced by the polymerization of propylene in the presence of an isospecific...
6878326 Process for preparing industrial polyester multifilament yarn  
Process for preparing an industrial polyester multifilament yarn with high modulus and low shrinkage, in which polyethylene terephthalate polyester is wound at 2000 m/min or more to produce undrawn...
6872352 Process of making web or fiberfill from polytrimethylene terephthalate staple fibers  
The invention relates to webs or batts including polytrimethylene terephthalate crimped staple fibers and fiberfill products comprising such webs and batts, as well as the processes of making the...
6858551 Ferroelectric fibers and applications therefor  
A fiber which includes a thermoplastic polymer and particles of a ferroelectric material dispersed therein. The thermoplastic polymer may be, for example, a polyolefin, such as polypropylene or...
6852411 Polyester fibers for rubber reinforcement and dipped cords using same  
A polyester fiber containing polyethylene terephthalate at 90 mol % or higher of a whole repeating unit in a molecular chain thereof, the fiber having an intrinsic viscosity (IV) of 0.85 dl/g or...
6838043 Method for the production of a synthetic leather  
A synthetic leather made of a nonwoven fabric impregnated and/or coated with a polymer, with a surface weight of 100 to 500 g/m 2 , and a tensile strength greater than 300 N/5 cm in the lengthwise...
6835339 Process for preparing poly(trimethylene terephthalate) tetrachannel cross-section staple fiber  
Poly(trimethylene terephthalate) tetrachannel cross-section staple fibers, as well as yarns, fiberfill webs, batts and products, and fabrics made therewith. Also, the process of making such staple...
6824721 Polypropylene fibers  
Process for the production of fibers formed from an ethylene-propylene copolymer characterized as a random copolymer of ethylene and isotactic polypropylene having a random ethylene content within...
6811716 Polyolefin fibers and method for the production thereof  
A method for producing hydrophobic polyolefin-containing fibers or filaments, in particular cardable staple fibers, using spin finishes applied after spinning and stretching, that comprise at least...
6803013 Process of making a meltblown web  
The present invention relates to an apparatus and method for forming meltblown material with a die assembly. The die may further include a die tip and a heating element positioned relative to the...
6803003 Compositions and methods for preparing multiple-component composite materials  
Methods for preparing fibrous monolith composite materials include continuously extruding cell and boundary material compositions. A filament is formed from a cell material composition and passed...
6803000 Process of making yarn from two types of polyester  
A soft stretch yarn produced by spinning yarn of conjugate fibers including two types of polyester in which one component is PTT at a take-up velocity of at least 1200 m/min, drawing at a drawing...
6780361 Process of making polymer articles  
A method including forming a pseudo-gel of a semi-crystalline polymer material and a solvent. The pseudo-gel is shaped into a first form and stretched. A portion of the solvent is removed to create...
6780358 Manufacturing method for polyester yarn excellent in yarn transferring, packaging and loosing with no white powder occurred when weaving and polyester yarn made from the same  
Provide a manufacturing method for polyester yarn excellent in yarn transferring, packaging and loosing with no white powder occurred when weaving, which is heating polyester polymer of inherent...
6776943 Methods for making morphologically stable bulked continuous filaments  
BCF yarn is melt-spun, drawn and textured to provide morphologically stable BCF yarns. The yarn texturizing includes a relatively low efficiency fluid jet texturizer, that is a fluid jet texturizer...
6770364 Artificial hair and method for production thereof  
The present invention provides synthetic hair comprising fiber of 30 to 100 decitex, comprising an acrylic copolymer obtained by copolymerizing acrylonitrile, vinylidene chloride and a vinyl...
6767498 Process of making microfilaments  
Thermally divisible multicomponent fibers ( 4 ) having at least a first component including an elastomeric polymer ( 6 ) and at least a second component including a non-elastomeric polymer ( 8 )....
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...
6763559 Cold drawing process of polymeric yarns suitable for use in implantable medical devices  
The present invention provides for a method of cold drawing polymeric yarns suitable for use in implantable medical devices, such as vascular grafts. The method of the present invention produces...
6756000 Process of making multifilament yarn  
The present invention is directed to processes for the manufacture of multifilament yarn, including the steps of extruding multifilaments of a polymer containing at least mole 85 percent L-lactide...
6752945 Process for making poly(trimethylene terephthalate) staple fibers  
A process of making polytrimethylene terephthalate staple fibers, including (a) providing polytrimethylene terephthalate, (b) melt spinning the melted polytrimethylene terephthalate at a...
6743505 Bioabsorbable multifilament yarn and methods of manufacture  
The present invention relates to a process of forming bioabsorbable, multifilament yarn from Lactide-rich copolymers, including the steps of extruding and spinning a Lactide-rich copolymer to form...