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7192550 Method and apparatus for spinning a web of mixed fibers, and products produced therefrom  
A device and method for spinning polymer fibers utilizes one or more independent sources of polymer materials, pumps for feeding polymer material from each of the sources, and a series of...
7101597 Medical devices made from polymer blends containing low melting temperature liquid crystal polymers  
A medical device, at least a portion of which is composed of a polymeric material in which the polymeric material is a melt blend product of at least two different thermoplastic polymers, one of...
6787081 Manufacturing method for differential denier and differential cross section fiber and fabric  
A manufacturing method for differential denier and differential cross section fiber and fabric is provided, wherein the method comprising melting two polymers having different alkali dissolution...
6780357 Splittable multicomponent polyester fibers  
Mechanically divisible multicomponent fibers have at least a component including poly(lactic acid) polymer and at least a second component including at aromatic polyester. The multicomponent fibers...
6737009 Process and system for producing multicomponent spunbonded nonwoven fabrics  
A system and process for producing spunbond nonwoven fabric in which two or more polymeric components are separately melted and are separately directed through a distribution plate configured so...
6506327 Process of making monofilaments  
In a method for producing a monofilament with reduced secondary binding forces of at least two commonly extruded polymers for the production of bristles or interdental cleaners which are slittable...
6454989 Process of making a crimped multicomponent fiber web  
The present invention provides continuously crimped propylene polymer nonwoven fabrics as well as processes for forming crimped multicomponent propylene polymer fibers by melt-attenuating extruded...
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...
6332994 High speed spinning of sheath/core bicomponent fibers  
Processes whereby sheath/core bicomponent fibers are melt-spun at relatively high spinning rates. In particularly preferred forms, polyamide sheath/core bicomponent fibers are made at melt-spinning...
6162382 Process of making multicomponent fiber  
Multicomponent fibers and methods of producing the same are provided such that an inter-domain boundary layer is interposed between distinct domains formed of incompatible polymers so as to...
6153138 Process for modifying synthetic bicomponent fiber cross-sections  
Bicomponent fibers of different cross-sections may be formed without changing the geometry of the spinneret orifices. More specifically, at least two polymers are co-melt-spun through an orifice of...
6074590 Process of making a bicomponent fiber  
Bicomponent fibers of isotactic polypropylene and syndiotactic polypropylene, methods of making such fibers and products made thereof.
6039903 Process of making a bicomponent fiber  
Novel bicomponent fibers have a polyamide domain and a contaminant-containing polymer domain which is embedded entirely within, and thereby completely surrounded by, the polyamide domain. The...
6017479 Process of making a multiple domain fiber having an inter-domain boundary compatibilizing layer  
Multicomponent fibers and methods and apparatus for producing the same are provided such that an inter-domain boundary layer is interposed between distinct domains formed of incompatible polymers...
6017478 Method of making hollow bicomponent filaments  
Novel bicomponent fibers have a sheath domain and an core domain which is embedded entirely within, and thereby completely surrounded by, the polyamide domain. The core domain is annular and...
6010654 Method of making multiple domain fibers  
Multicomponent fibers have a primary core, and multiple secondary cores equidistantly radially spaced from one another and from the primary core. The primary and secondary cores are entirely...
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...
5876650 Process of making fibers of arbitrary cross section  
The present invention relates, in general, to fiber spinning and, in particular, to a process of spinning fibers of more than one cross-sectional component and to fibers produced thereby.
5853635 Method of making heteroconstituent and layered nonwoven materials  
The present invention is directed to a method of forming a heteroconstituent nonwoven web including a mixture of different filament types simultaneously formed into the same web. The filament types...
5811040 Process of making fiber for carpet face yarn  
The specification describes a process of making a fiber for a carpet face yarn, the yarn being made of polyolefin/polymer filaments which contain a plurality of longitudinally dispersed relatively...
5556589 Process of using a spin pack for multicomponent fibers  
The invention is directed to a device for spinning fibers, especially bicomponent fibers having a sheath/core configuration. The device has, in a preferred embodiment, disposed in the spinneret...
5500175 Process of producing heat-softenable, hopper-feedable plastic pellets containing folded reinforcing fibers  
Process and product for manufacturing continuous fiber reinforced sheets and shapes. A pressurized extrusion process consisting of a paired and edge enclosing doctor blades that remove feed...
5393470 Process for manufacturing optical fibers  
A process for manufacturing optical fibers includes extruding a transparent thermoplastic plastic sheet having plurality of transversely shaped and spaced parallel grooves extending in the...
5380472 Method and apparatus for manufacturing chamber members for accepting light waveguides  
An apparatus for forming a chamber member which receives optical light waveguides comprises an extruder head for extruding the chamber member followed by a calibrating device which inserts members...
5372885 Method for making bicomponent fibers  
A method is disclosed for making thermoplastic bicomponent fibers by contacting under thermally bonding conditions (a) a first component being at least one high performance thermoplastic polymer,...
5277850 Process for producing a coil-shaped carbon fiber bundle  
The present invention relates to a carbon fiber bundle includes a regular coil-shaped fiber bundle and having excellent stretch characteristic. A process for producing a coil-shaped carbon fiber...
5277855 Process for forming a yarn having at least one electrically conductive filament by simultaneously cospinning conductive and non-conductive filaments  
The present invention is directed to a process for forming a yarn having at least one conductive filament wherein the conductive and nonconductive filaments which make up the yarn are...
5260013 Sheath-core spinning of multilobal conductive core filaments  
Multilobal core conductive bicomponent sheath-core filaments are provided and methods for making the same.
5244614 Process of making multicomponent trilobal fiber  
A method of producing a multicomponent trilobal fiber includes providing a trilobal capillary defining three legs, three apexes and an axial center, directing a first molten polymer composition to...
5162074 Method of making plural component fibers  
A method for extruding a wide variety of plural-component fiber configurations in a spin pack utilizes one or more disposable distributor plates in which distributor flow paths are etched on one or...
5154934 Alternate high-molecule arrangement production system  
The invention relates to the alternate high-molecular arrangements manufactured through apparatus wherein the layers of at least two component high-molecular fluids are formed into layers and so...
5104601 Process for producing a polyhexamethylene adipamide, caprolactam and polypropylene fiber  
A process for producing a nylon 6,6 and polypropylene fiber wherein deposits of polypropylene on the yarn guide surface are substantially eliminated by adding nylon 6.
5035848 Filament separation in liquids  
A method of separating filaments from a clump thereof in a liquid flow from each other by sub-dividing the flow across its lateral extent to pass through an array of a plurality of filament...
4941812 Spinneret for production of a hollow filament within a hollow filament composite fiber having spacing means  
The apparatus concerns hollow fibers and, more particularly, a hollow filament co-spun within another hollow filament composite fiber wherein spacing means is provided to separate the inner and...
4743189 Spinneret for a co-spun filament within a hollow filament  
A hollow fiber which contains within the hollow a co-spun hollow or solid filament. The solid filament is formed of polymer that can distribute energy within the hollow fiber while a co-spun hollow...
4568506 Process for producing an assembly of many fibers  
An assembly of fibers composed of at least two dissimilar fiber-forming polymers, characterized by the fact that (1) it consists of numerous fibers, (2) at least 90% of said fibers have a...
4560385 Process for the treatment of non-woven sheets and the product obtained  
A process for the treatment of non-woven sheets made of synthetic textiles containing two constituents arranged side-by-side, one based on polyamide (polyhexamethyleneadipamide) and the other based...
4546043 Hollow irregular multifilament yarn and process and spinneret for producing the same  
A synthetic polymer hollow irregular multifilament yarn useful for producing bulky yarn products comprises a plurality of hollow irregular individual filaments each comprising a hollow filamentary...
4325765 High speed spinning of large dpf polyester yarn  
High speed spinning of high dpf non-round polyester filaments by extruding molten polymer through adjacent orifices spaced such that the extruded streams merge prior to solidification.
4293614 Crimped polyester filament  
Crimped side-by-side bicomponent filaments consisting of a polyester and CaF 2 are produced in whichthe CaF 2 is dispersed in only one of the components.
4280860 Process for manufacturing nonwoven fabrics composed of crimped filaments  
An improved process for making point-bonded nonwoven fabric composed of crimped filaments is described. The process involves melt spinning a side-by-side bicomponent filament which develops crimp...
4207376 Antistatic filaments having an internal layer comprising carbon particles and process for preparation thereof  
An antistatic composite filament is disclosed, which has a three-layer structure including a core layer, a sheath layer and an intermediate layer, each of which is continuous in the axial direction...
4145473 Antistatic filament having a polymeric sheath and a conductive polymeric core  
An antistatic filament having a polymeric sheath and a conductive polymeric core of a defined nature, the core constituting less than 10% of the cross-sectional area of the filament.
3968307 Mixed filaments  
Multi-component mixed filament, wherein at least two spinning materials having poor affinity are mixed and dispersed in unitary filament in a nebular configuration containing at least 50 stars at...
3895165 Composite fibres and yarns of acrylonitrile polymers  
The invention relates to a spontaneously crimping composite fibre of acrylonitrile polymers in which one of the fibre-forming component has a content of copolymerized esters up to 6% by weight and...
3843609 TEREPHTHALAMIDE POLY BIS(PROPOXY)ALKYLENE  
A polyamide consisting of a substantial homopolymer of poly-bis(propoxy) alkylene terephthalamide having the recurring structural unit of the formula ##SPC1## , wherein n is 3 or 4 has an improved...
3814561 SPINNERETS FOR PRODUCING MULTI-SEGMENT FILAMENTS  
Multi-segment filaments can be obtained by feeding a flow of liquid spinning material composed of at least two thin layers, which extend radially from the center portion of the cross-section of a...
3726955 PROCESS FOR PRODUCING FILAMENTS AND YARNS OF BLENDED INCOMPATIBLE POLYMERS  
Conjugate filaments the components of which are comprised of the same constituents in dissimilar relative concentrations are produced by allowing the constituents of the molten stream of blended...
3658634 FIRE-RETARDANT SHEATH AND CORE TYPE CONJUGATE FIBER  
The present invention relates to a sheath and core type conjugate fiber obtained by providing a core composed of polymer prepared by blending a specific halogen substituted aromatic compound and...
3642565 COMPOSITE FILAMENTS HAVING AN ELASTIC CRIMPING PROPERTY  
Composite filament having an elastic crimping property, comprised of at lt two components disposed in an eccentric sheath-core relation along the longitudinal axis of the filament, in which one...
Matches 1 - 50 out of 87 1 2 >