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7273578 Method and apparatus for low-speed, high-throughput fiber drawing using coiled fiber loops  
A method and apparatus for continuous drawing of fibers in the form of coiled fiber loops (e.g., polygonal or serpentine loops). The successive fiber loops are continuously laid on receiving ends...
6994763 Elastomeric multicomponent fibers, nonwoven webs and nonwoven fabrics  
A bonded web of multi-component strands that include a first polymeric component and a second polymeric component is capable of overcoming a number of problems associated with nonwoven webs...
6982231 Elastomeric, breathable laminate with enhanced breathability upon extension  
An elastomeric, breathable laminate having enhanced breathability is formed by bonding a breathable, microporous, extendible/elastic film to a nonwoven facing material. The facing material can be...
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...
6787230 Ultrafine inorganic fiber, and a process of preparing for the same  
The present invention relates to ultra-fine inorganic fibers and a method of producing the same. The method of producing ultra-fine inorganic fibers comprises the steps of: mixing sol or gel...
6663806 Processes for making poly (trimethylene terephthalate) yarns  
Fine denier poly(trimethylene terephthalate) feed yarns and drawn yarns wherein the drawn yarns are characterized by a denier per filament less than 1.5 and are drawn such that the actual draw...
6476172 Metallocene catalyzed propylene-α-olefin random copolymer melt spun fibers  
A fiber product drawn from an isotactic propylene copolymer of a C 2 , C 4 , C 5 , C 6 , C 7 or C 8 α-olefin monomer produced in the presence of a metallocene catalyst characterized by a bridged...
6346325 Fiber-reinforced composite encased in a thermoplastic and method of making same  
A fiber-reinforced depolymerizable and repolymerizable thermoplastic composite that is encased in a depolymerizable and repolymerizable thermoplastic resin exhibits the strength and stiffness that...
6238605 Low-fibrillation moulded bodies  
The invention relates to a process for the production of a low-fibrillation moulded body containing polytetrafluorethylene. The process is characterised in that a pre-moulded body of...
6210622 Process of making polymeric fibers  
A for the production of polymeric fibers in the form of a tow includes drawing and heat setting, with and without crimping, in which the tow has a constant denier per inch during the processing....
6203743 Heat setting a tow of synthetic fibers using high pressure dewatering nip  
An apparatus and method for heat setting a traveling tow of synthetic filaments utilizing a high pressure dewatering nip roll mechanism to remove moisture from the tow prior to heat setting. The...
6136124 Process for producing a structured, voluminous nonwoven  
A process for producing a structured, voluminous nonwowen comprises the following steps: (a) a spun nonwoven is produced from a plurality of individual filaments which are stretched and gathered...
6129882 Apparatus for manufacturing multifilament threads  
The invention relates to an apparatus for manufacturing multifilament threads with at least one hot-air module 6 for drawing or relaxing the thread Y. To manufacture multifilaments with...
6117378 Process for producing cellulose fibres  
A process for the production of cellulose fibers, comprising the following steps: (A) dissolving a cellulose-containing material in an aqueous, tertiary amine-oxide to obtain a spinnable...
6094769 Bristle for a toothbrush  
The invention is directed to a bristle (1) for a toothbrush, in particular for an electric toothbrush, which is comprised of a monofilament (2) made of plastic. The monofilament (2) is of a...
6090910 Degradable monofilament and preparation process thereof  
A degradable copolymer filament comprising an internal structure having the following separate phases: (a) a matrix phase comprised as a primary component of a polymer segment which exhibits a...
6054086 Process of making high-strength yarns  
An ultra-high molecular weight polyolefin having a viscosity average molecular weight of at least 500,000 is subjected to melt forming into a film, the thus obtained molten film or solid state film...
6023824 Process for producing a high-strength, high-shrinkage polyamide 66 filament yarn  
A process for producing high strength, high shrinkage nylon 66 filament yarn for industrial fabrics formed as airbag fabrics, the process having the steps of drawing of a nylon 66 LOY filament yarn...
5888434 Process for making a microporous membrane from a blend containing a poly (phenylene sulfide) polymer, an amorphous polymer, and optionally a solvent  
The invention relates to a process for preparing a microporous membrane from an unsulfonated poly(phenylene sulfide) polymer by forming a mixture of an unsulfonated poly(phenylene sulfide) polymer,...
5836146 Method of and apparatus for producing thick regions in a filament yarn  
The distribution of thick regions along a filament yarn can have a random character if the thick regions of a filament from a first stretching zone are heated in a second stretching zone and...
5833787 Process for making a nonwoven web derived from lactic acid, web produced thereby, and apparatus therefor  
The invention relates to a process for the manufacture of a nonwoven web using filaments of melted polymers, of the type including the steps of spinning the polymer or polymers, of cooling, drawing...
5814569 Uniaxially elastic nonwoven fabric  
A nonwoven fabric of superior uniaxial elasticity is provided. The nonwoven fabric comprises of conjugate filaments each of which is about concentric sheath-core type. Core component is composed of...
5762840 Process for making microporous fibers with improved properties  
A distinctive technique for making porous fiber includes a stretching of a substantially continuous fiber while the fiber is in an operative association with an effective quantity of surface-active...
5749214 Braided or twisted line  
Braided or twisted lines made from gel spun polyolefin yarns are stretched to increase line tenacity. If desired, stretching conditions can also be chosen to significantly reduce the denier of the...
5741451 Method of making a high molecular weight polyolefin article  
By poststretching, at a temperature between about 135° and 160° C., a polyethylene fiber, which has already been oriented by drawing at a temperature within 5° C. of its melting point, an ultra...
5730821 Process for producing a web of thermoplastic polymer filaments  
A process for producing a web fleece of thermoplastic polymer filaments. Filaments of thermoplastic polymer are spun from a spinneret to form a curtain passing through a cooling chamber and a...
5714107 Perforated nonwoven fabrics  
The invention provides a perforated nonwoven web fabricated from a bonded thermoplastic polymer web. The perforated nonwoven web contains a multitude of self-sustaining sustaining perforations that...
5698148 Process for making electrically conductive fibers  
Electrically conductive thermoplastic fibers are made by spinning a fiber having an electrically conductive sheath of thermoplastic polymer formulated with carbon black and a non-conductive core...
5679300 Process of treating a tow of melt-spun filaments  
A method for treating a tow of melt-spun filaments to produce a tow of uniformly crimped filaments having a high initial modulus by heat-setting and stuffer box crimping includes the steps of...
5662852 Mass-colored formed structures based on aromatic polyamides, mass-colored fiber, and premix for producing mass-colored formed structures  
A process for producing mass-colored fiber or film, comprises the steps of: a) preparing a premix by grinding a composition comprising a polar aprotic organic solvent, 5 to 30% by weight of an...
5661880 Method and apparatus for producing a multifilament yarn by a spin-draw process  
A method and apparatus for producing a multifilament yarn by a melt spinning-draw process, and which includes applying additional heat to the melt in the region of the spinneret. The relationship...
5565158 Process for recycling multicomponent mixed polymer wastes  
A process of recycling a multicomponent mixed polymer waste material involves the steps of agglomerating the multicomponent mixed polymer waste material and spinning the agglomerate to form yarn,...
5505888 Process for preparation of cellulose acetate fibers useful in preparation of paper products  
A process to prepare cellulose acetate fibers useful for preparation of paper products. This process includes (A) tensioning a running band of cellulose acetate filter tow, (B) contacting the...
5487859 Process of making fine polyester hollow filaments  
A post-coalescence melt-spinning process for preparing fine undrawn hollow polyester filaments having excellent mechanical quality and uniformity at high speeds (2-5 km/min) involving selection of...
5468440 Process of making oriented film or structure  
Applications of isotactic polypropylene resin compositions produced from metallocene catalyst wherein the resins yield articles with comparable shear modulus and heat distortion temperature values...
5454525 Process for producing a ready-to-use racquet string, especially for tennis racquets  
A method for conditioning a racquet string which is tensioned to an elongation between 5 and 15% and in this state is wound on a spool. To implement this process, an untreated string segment is...
5439626 Process for making hollow nylon filaments  
A melt spinning process and the nylon hollow filaments and yarns made by such process which includes extruding molten nylon polymer having a relative viscosity (RV) of at least about 50 and a...
5438089 Process for the manufacture of polymeric objects starting from a solution  
Process for the manufacture of a polymeric object starting from a solution of a polymer in a solvent and comprising drawing a solvent-containing polymeric object, the solvent containing a first and...
5435955 Process of producing porous polypropylene hollow fiber and film  
A process of producing a porous polypropylene hollow fiber or film which comprises a step for forming a large number of micropores in the surrounding wall of said fiber or in said film by drawing a...
5419022 Apparatus for spin-drawing thermoplastic filament yarns  
In an apparatus for the spin-drawing, on multiple ends, of thermoplastic filament yarns on at least two pairs of godets (1, 2 and 1', 2'), their axes of rotation (7 and 8) are arranged skew with...
5401447 Process for producing celluose moldings  
A method for producing a cellulose shaped article characterized by causing cellulose dope substantially composed of an alkali soluble cellulose and an aqueous alkali solution having an alkali...
5397527 High modulus polyester yarn for tire cords and composites  
Yarns are prepared by spinning PEN or other semi-crystalline polyester polymers made from similarly rigid monomer combinations to a state of optimum amorphous orientation and crystallinity. This is...
5372756 Method of forming striated light diffuser  
A light transmitting body (10), (40) has a longitudinal axis (12), (42), and a light radiating surface (14), (46) extending substantially parallel to the axis (12), (42). Where the body is an...
5362433 Process of making polyurethane elastomer thread  
In a process for producing melt-spun elastomer threads with a high modulus, a breaking elongation of 80 to 300% and a boiling shrinkage of at least 20%, multifilament elastic threads are obtained...
5356582 Continuous hollow filament, yarns, and tows  
Hollow polyester undrawn filaments having excellent mechanical quality and uniformity are prepared by a simplified post-coalescence melt spinning process at speeds of e.g. 2-5 km/min by selection...
5349729 Method to control drawing of a plurality of synthetic yarns  
Method and apparatus to selectively treat adjacent yarns in draw machine to provide different characteristics in the synthetic yarn being drawn and beamed. The yarn running between the feed rolls...
5340523 Improved method of incrementally drawing fibers  
A fiber drawing process and apparatus in which the fibers are drawn in small increments by passing the fibers in multiple wraps over on rotatably mounted spaced apart spindles having discrete...
5339503 Method and apparatus for incrementally drawing fibers  
A fiber drawing process and apparatus in which the fibers are drawn in small increments by passing the fibers in multiple wraps over on rotatably mounted spaced apart spindles having discrete...
5308564 Polyester fiber process  
Spun textile yarns from new polyester staple fiber, and downstream textile articles, such as fabrics and garments, made from such, and blends thereof, wherein the staple fiber is of intentionally...
5294389 Dynamic treatment of suture strand  
A suture strand is subjected to dynamic treatment by passing the suture with multiple turns around at least two godets located within a heating zone provided by an oven. The suture strand can be...
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