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8182725 |
Methods for making polylactic acid stereocomplex fibers
PLA stereocomplex fibers are made by separately melting a high-D PLA starting resin and a high-L starting resin, mixing the melts and spinning the molten mixture. Subsequent heat treatment...
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8178021 |
Method of manufacturing a drawn biodegradable micro-filament
The invention resides in enabling biodegradable filament of polylactic acid, polyglycolic acid and the like to manufacture biodegradable micro-filament by simple and convenient means without...
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8163841 |
Polyethylene naphthalate fibers and method for producing the same
Polyethylene naphthalate fibers that are characterized in that the fibers have a crystal volume of from 550 to 1,200 nm3 obtained by wide angle X-ray diffraction of the fiber and a degree of...
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8158718 |
Polyethylene naphthalate fibers and method for producing the same
Polyethylene naphthalate fibers that are characterized in that the fibers have a crystal volume of from 100 to 200 nm3 obtained by wide angle X-ray diffraction of the fiber and a degree of...
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8147745 |
Process for producing fiber and method for producing catalyst layer
To provide a process whereby an ultrafine fiber of a fluorinated ion exchange resin can be produced easily at low cost, and a method whereby a catalyst layer having a high gas diffusion property...
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8137809 |
Ultra high molecular weight polyethylene multifilament yarns, and process for producing thereof
The invention relates to a gel spun, ultrahigh molecular weight polyethylene (UHMWPE) multifilament yarn characterized in that said yarn comprises individual monofilaments having a coefficient of...
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8128850 |
Method of producing islands-in-sea type composite spun fiber
The method of producing an islands-in-sea type composite spun fiber having an island component diameter of 1 μm or less according to the present invention comprises drawing (superdrawing) with a ...
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8105519 |
Process of making a nematic elastomer fiber with mechanical properties of a muscle
A method of making a liquid crystalline fiber is disclosed. A copolymer having a liquid crystalline side group and a crosslinking side group is crosslinked. A fiber of the crosslinking copolymer is...
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8101104 |
Process of making a stent
According to an aspect of the present invention, a stent is provided, which contains at least one filament that has a longitudinal axis and comprises a bioabsorbable polymeric material. Polymer...
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8070998 |
Process for drawing gel-spun polyethylene yarns
Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact...
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8052905 |
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: (a) preparing a suspension of a...
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8043700 |
Bicomponent superabsorbent fibre
A multicomponent superabsorbent fiber includes a first superabsorbent material and a second superabsorbent material. In at least a part of the length direction (L) of the superabsorbent fiber, the...
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8034270 |
Polyhydroxyalkanoate medical textiles and fibers
Absorbable polyester fibers, braids, and surgical meshes with prolonged strength retention have been developed. These devices are preferably derived from biocompatible copolymers or homopolymers of...
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8021584 |
Process for preparing polymeric fibers based on blends of at least two polymers
Blending of thermoplastic polyester with fiber-forming polyamide in the production of melt-colored melt-spun fibers results in improved color strength and aesthetics, and dimensional stability.
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8003027 |
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 which includes the steps of preparing a suspension of a homopolymer or copolymer and a...
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7981357 |
Method of making a spunbond
A spunbond web is made by extruding a multiplicity of hot thermoplastic filaments, passing the filaments along an upstream stretch of a path, cooling and stretching the filaments as they move along...
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7968028 |
Polymer gel-processing techniques and high modulus products
The present invention provides polymer gel-processing techniques and polymer articles of high modulus.
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7968656 |
Absorbable copolyesters of poly(ethoxyethylene diglycolate) and glycolide
A semi-crystalline, absorbable copolyester composition comprising the reaction product of a polycondensation polyester and at least one lactone, wherein the polycondensation polyester comprises the...
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7943071 |
Polyethylene terephthalate filament having high tenacity for industrial use
A polyethylene terephthalate monofilament obtained by spinning a polyethylene terephthalate chip having an intrinsic viscosity of 0.8 to 1.3, which gives a stress-strain curve exhibiting an...
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7939010 |
Method for forming fibers
An improved method for creating fibers from a material dissolved in a solvent. In one embodiment, the method includes the steps of feeding a fiber making material dissolved in a solvent through a...
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7935283 |
Melt spinning blends of UHMWPE and HDPE and fibers made therefrom
Compositions that are intimate blends of ultrahigh molecular weight polyethylene and high-density polyethylene (HDPE), and which are melt spinnable. The compositions include certain quasi-spherical...
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7927528 |
Preform for manufacturing a material having a plurality of voids and method of making the same
A beaded preform includes a plurality of adjacently positioned beads for forming a plurality of voids in an engineered material. The beaded preforms may be comprised of a filaments (single strand...
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7914723 |
Nonwoven bonding patterns producing fabrics with improved abrasion resistance and softness
A thermal bonding pattern for nonwoven fabric possessing improved abrasion resistance while retaining softness, comprising a basket-weave pattern or other pattern having a transition area (2) equal...
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7868127 |
Absorbable copolyesters of poly(ethoxyethylene diglycolate) and glycolide
A semi-crystalline, absorbable copolyester composition comprising the reaction product of a polycondensation polyester and at least one lactone, wherein the polycondensation polyester comprises the...
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7850899 |
Method of making spun-bond web from multicomponent filaments
A web is made by first extruding multicomponent filaments from a spinneret and then passing the extruded filaments through a process air shaft. Cold air is directed against the filaments in the...
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7850894 |
Tissue holding devices and methods for making the same
Various methods are provided for forming tissue holding devices having predetermined shapes suitable for use in surgical applications, and devices formed in accordance with such methods are also...
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7842208 |
Spinning method
A method for spinning a multifilament yarn from a thermoplastic material, where the filament bundle is cooled below the spinneret in a first cooling zone, first of all by means of at least one...
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7833447 |
Production of fine stufferbox-crimped tows from synthetic filaments and further processing thereof into textile hygiene articles
A process is described for producing thin crimped tows from LOY, POY, or FOY filaments in a total linear density from 2 ktex to 9 ktex by filament yarns being withdrawn from creeled bobbins, folded...
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7829002 |
Method for the production of plant cutting filaments
The invention relates to a method for the production of a cutting filament for a device used to cut vegetation such as a trimmer or border cutter. The filament is made of a synthetic material...
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7824769 |
Conductive sheath-core conjugate fiber and process for producing the same
In an electrically conductive sheath-core conjugate fiber including an electrically conductive layer made of a thermoplastic polymer (A) containing electrically conductive carbon black fine...
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7820083 |
Wet reflective pavement marking and method
Reflective pellets (16) are formed by extrusion of reflective micro beads (26) in a thermoplastic (20), removal of the surface layer of the pellets so as to expose the reflective beads at the...
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7807770 |
Drawn tapes, fibre and filaments comprising a multimodal polyethylene resin
Drawn tape, fiber or filament including a multimodal resin having a density of at least 940 kg/m3, a melt index MI5 of 0.05 to 5 g/10 min, and a molecular weight distribution of the resin being...
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7807094 |
Process of preparing continuous filament composed of nanofibers
A method for producing a continuous filament made up of nanofibers is disclosed. A ribbon-shaped nanofiber web is prepared by electrospinning a polymer spinning solution onto a collector 7 applied...
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7799258 |
Process for manufacturing a shaped part of ultra high molecular weight polyethylene
The invention relates to a process for the manufacture of a shaped part of ultra high molecular weight polyethylene (UHMW-PE) comprising melt processing, wherein UHMW-PE a) is annealed at a...
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7799262 |
Method of manufacturing a continuous filament by electrospinning
The invention is directed to a method of making continuous filament by electrospinning, wherein electrospun nanofibers are collected on a multi-layer type collector consisting of two or more,...
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7793357 |
Method of producing ultra thin chitosan fibers and non-woven fabrics
This invention provides a method of producing chitosan non-woven fabrics and an apparatus thereof. At first, a chitosan acidic solution is extruded to form a chitosan fibrous stream. Then, a...
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7785507 |
Spinning poly(trimethylene terephthalate) yarns
A novel process is provided for making spin-drawn yarn from poly(trimethylene terephthalate). The yarn, when packaged on a cheese-shaped spindle, can be produced in large sizes without crushing.
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7780904 |
Method and apparatus for manufacturing nonwoven fabric
The invention provides a method for manufacturing spun-bonded nonwoven fabrics that can reduce the diameter of a filament without decreasing productivity and can stably produce nonwoven fabrics,...
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7780903 |
Method of making fibers and nonwovens with improved properties
The present invention can provide a distinctive method and process for making polymer fibers (62) and nonwoven fabric webs (60). The method can include providing a fiber material that exhibits a...
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7749352 |
Process for making bi-tapered reinforcing fibers
Non-fractured, non-fibrillatable short fibers, for reinforcing matrix materials such as concrete, have substantially uniform transverse cross-sectional areas along their length for maximum...
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7736564 |
Process of making a high strength polyolefin filament
A filament having excellent incision resistance includes as a primary component a polyethylene filament having a weight-average molecular weight of 300,000 or less and a ratio of a weight-average...
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7736561 |
High tenacity polyethylene yarn
A process for preparing ultra-high molecular weight polyethylene (UHMWPE) multi-filament yarns having improved tensile properties and the yarns and articles thereby produced.
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7731876 |
Spinning method
A method is provided for spinning a multifilament thread from a thermoplastic material, including the steps of extruding the melted material through a spinneret with a plurality of spinneret holes...
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7722347 |
Apparatus and die cartridge assembly adapted for use therewith, and process for producing fibrous materials
Apparatus (100, 101, 102) and die cartridge assembly (18, 44, 45, 47) adapted for use with same for producing fibrous material (212). The apparatus (100) comprises a removably attachable die...
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7674409 |
Process for making uniform high strength yarns and fibrous sheets
Methods for preparation of high strength yarns having superior yarn-to-yarn uniformity of denier, tenacity and tensile modulus and uniform unidirectional fibrous sheets. Ballistic composites...
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7662325 |
Polyhydroxyalkanoic acid fibers with high strength, fibers with high strength and high modulus of elasticity, and processes for producing the same
The present invention is a process for producing a fiber, comprising: melt-extruding polyhydroxyalkanoic acid; solidifying the polyhydroxyalkanoic acid by quenching it to its glass transition...
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7641825 |
Method of making a polyhydroxyalkanoate filament
Absorbable polyester fibers, braids, and surgical meshes with improved handling properties have been developed. These devices are preferably derived from biocompatible copolymers or homopolymers of...
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7632442 |
Method for manufacturing an inorganic yarn
A method and system for manufacturing an inorganic yarn require a mixture of volcanic rock and an additive including potassium permanganate. This mixture is heated to form a melt. From the melt, a...
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7628944 |
Spinning, doping, dedoping and redoping polyaniline fiber
A composition of matter suitable for spinning polyaniline fiber, a method for spinning electrically conductive polyaniline fiber, a method for exchanging dopants in polyaniline fibers, and methods...
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7585445 |
Method for producing high tenacity polypropylene fibers
A method for producing high-tenacity polypropylene fibers with a tenacity greater than 6 cN/dtex and an elongation of less than 40%. To produce as much as possible fibers of a very fine denier, the...
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