СПОСОБ ПОЛУЧЕНИЯ ПРЯЖИ, ПОЛУЧЕННОЙ ИЗ ВОЛОКНА НА ОСНОВЕ АРАМИДНОГО СОПОЛИМЕРА, ХАРАКТЕРИЗУЮЩЕГОСЯ НИЗКИМ СОДЕРЖАНИЕМ ОСТАТОЧНОЙ СЕРЫ

... 1. Способ получения пряжи, содержащей полимер, причем указанный полимер содержит имидазольные группы, при этом способ включает следующие стадии:(a) прядение из раствора полимера в серной кислоте с образованием множества элементарных нитей из прядильного раствора;(b) коагуляция множества элементарных нитей из прядильного раствора в многонитевую свежеспряденную пряжу и(c) промывка свежеспряденной многонитевой пряжи водным раствором кислоты, содержащей галогенид, или водным раствором соли, содержащей галогенид, или их комбинацией.2. Способ по п. 1, отличающийся тем, что указанный полимер содержит производные 5(6)-амино-2-(п-аминофенил)бензимидазола, ароматического диамина и хлорангидрида ароматической дикислоты.3. Способ по п. 1 или 2, отличающийся тем, что указанная свежеспряденная многонитевая пряжа после стадии промывки (c) имеет содержание серы менее 3 вес.%.4. Способ по п. 1 или 2, отличающийся тем, что указанная свежеспряденная многонитевая пряжа после стадии промывки (c) имеет содержание ...

FEUCHTIGKEIT ABSORBIERENDE UND ABGEBENDE SYNTHETISCHE FASER UND DARAUS HERGESTELLTES VERFLOCHTENES FADENGEMISCH, STRICKWAREN, GEWEBE UND VLIESSTOFFE

FLEXIBLE SPIN FLEECE MATERIAL AS WELL AS EQUIPMENT COMPOUND FLEECE MATERIAL WITH IT

MULTI-COMPONENT PILE FIBER WITH POLYARYLENSULFIDKOMPONENTE

SEPARABLE KONJUGATFASER WITH POLYACETAL AND FROM THIS WINNING FIBER FORM AS WELL AS WINNING FIBER PRODUCT FROM THIS

FISSILE ELASTOMERS MULTI-COMPONENT FIBERS

FLEXIBLE POLYMER FIBERS AND FROM IT MANUFACTURED ARTICLES

IMPLANTIERBARE FIBERS AND MEDICAL ARTICLES

FINE FIBERS MADE FROM POLYMER CROSSLINKED WITH RESINOUS ALDEHYDE COMPOSITION

A fine fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde (e.g., melamine-aldehyde) composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition. WO 2013/043987 PCT/US2012/056511 At' 4 y c4i ...

Fibers made from soluble polymers

A fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition.

FIBERS, TAPES AND FILMS PREPARED FROM OLEFINIC AND SEGMENTED ELASTOMERS

Hydrophilic, multicomponent polymeric strands and nonwoven fabrics made therewith

DURABLE HIGHLY CONDUCTIVE SYNTHETIC FABRIC CONSTRUCTION

... ²²²A fabric is provided comprising functional filaments, wherein each filament ²contains electrically conductive polymer material. In this way, the fabric is ²made conductive and has static dissipation properties comparable to metal-²based fabrics. At the same time, the fabric also has desirable physical ²properties comparable to non-conductive synthetic fabrics.² ...

NONWOVEN WEBS

A nonwoven web comprising bicomponent fibers. The fibers have continuous phases each of a first polyarylene sulfide (PAS) component and a polymer component. The polymer component may also be a second polyarylene sulfide. The first polyarylene sulfide component contains a tin or a zinc additive or both, and the first polyarylene sulfide component of any given fiber is at least partially exposed to the external surface of that fiber.

Composite textile filaments with an elastomer core and

Composite textile filament is formed from a core of at least one continuous elastomeric monofilament, and a continuous covering of a polymer foam with closed cells which completely encloses the core, the core being under tension and the foam covering under compression along the lengthwise axis of the composite filament, when this is in a non-stretched condition. As the elastomeric core is completely covered by the polymer foam, any discolouration of the core on ageing is hidden from view. In addition, the covering protects the core from wash-bleaching agents, and other oxidising agents.

THIN FIBER, MADE FROM POLYMER, CROSS-LINKED WITH COMPOSITION, CONTAINING ALDEHYDE RESIN

Method for preparing chemical sand fixation material

잔류 황이 적은 아라미드 공중합체 섬유로부터 유도되는 얀을 제조하는 방법

... 본 발명은, 이미다졸 기를 포함하는 중합체를 포함하는 얀을 제조하는 방법으로서, (a) 황산 중 중합체의 용액을 방사하여 복수의 도프 필라멘트를 생성하는 단계; (b) 복수의 도프 필라멘트를 멀티필라멘트 애즈-스펀 얀으로 응결시키는 단계; 및 (c) 애즈-스펀 멀티필라멘트 얀을, 할라이드를 포함하는 수성 산 또는 할라이드를 포함하는 수성 염, 또는 그 조합으로 세척하는 단계를 갖는 방법에 관한 것이다.

분리가능한 마찰 감소된 필라멘트를 갖는 이성분 스판덱스

... 본원에서는 다중 엔드 스판덱스 패키지를 제공하도록 조합된 마찰이 감소된 스판텍스 섬유가 개시된다. 스판덱스 섬유는 시스-코어 단면을 가지며, 시스에는 윤활 첨가제가 포함되어 있다. 얀 내의 개별 필라멘트들 사이의 유착을 피하기 위하여 융합 첨가제는 특별히 배제시킨다. 얀 패키지 내에 조합될 때, 다수의 필라멘트는 분리가능하다.

A BICOMPONENT FIBER, THE PREPARATION PROCESS AND THE USE THEREOF, AND THE FABRICS COMPRISING THE SAME

Conjugated fiber having excellent flame resistance and light fastness and interior fabric using the same

POLYPHENYLENE SULFIDE COMPOSITE FIBER AND NONWOVEN FABRIC

NONWOVEN AND STRETCHABLE LAMINATE

ELASTOMERIC CORE-SHEATH CONJUGATE FIBER

The invention provides a conjugate fiber excellent in elastic extensibility and transparency. The invention relates to a highly shrinkable conjugate fiber containing an elastomeric resin (A) exhibiting elastic extensibility and an elastomeric resin (B) exhibiting elastic extensibility and having an elongation set of 25 to 70% and a tensile elongation of 100 to 800%, wherein the resin (A) is contained in the core and the resin (B) is contained in the sheath; and a process for production of the conjugate fiber.

FABRIC CHANGEABLE IN AIR PERMEABILITY, SOUND-ABSORBING MATERIAL, AND PART FOR VEHICLE

A fabric capable of changing in air permeability which comprises: a fibrous object composed of composite fibers comprising a conductive polymeric material and a material which is directly superposed on the conductive polymeric material and is different from that material; and electrodes attached to the fibrous object and used for applying a voltage to the conductive polymeric material.The composite fibers have a structure in which at least part of the surface of the conductive polymeric material is covered by the material different from that conductive polymeric material, or have a structure in which one of the conductive polymeric material and the material different from that conductive polymeric material passes through the other in the lengthwise direction. The air permeability of this fabric can be regulated by means of a control factor capable of being reduced in weight and space.

CORE/SHEATH COMPOSITE FIBER AND PROCESS FOR THEIR MANUFACTURE

The invention relates to a core/sheath composite fiber composed of a core component of a polyester having sulfon groups and a sheath component of polyphenylene sulfide and a process for manufacturing the same by multi-stage stretching. This fiber has an excellent adhesion between the core component and the sheath component, and hence no single yarn breakage takes place in the spinning or knitting step, thus providing good workability. Since its surface is covered with polyphenylene sulfide, it is exellent in heat resistance, fire retardance, and chemical resistance.

Method of making a seamless tubular band

Side-by-side conjugate filaments made from thermoplastic elastomers and spunbond-type polyolefins exhibit an extremely high propensity to self-crimp. At appropriate polymer ratios and processing conditions (with mechanical or aerodynamical drawing) the crimp develops spontaneously after relaxation of the attenuation force. The amount of crimp and the degree of elastic properties depend on the elastomer content and the processing conditions. The resulting crimp is typically in the range of 25-200 crimps per inch. This combination of exceptionally high crimp and an elastomer component imparts stretch and recovery properties. The filaments can be wrapped around a cylindrical supporting structure to create a continuous, seamless elastic band, useful for body-fit articles.

Elastisches, aus Zweikomponentenfilamenten hergestelltes Faservlies

Synthetic composite filaments and fibres

... 1,088,506. Bristles for brushes. J. C. LEWIS. Jan. 27, 1965 [Jan. 31, 1964], No. 3662/65. Heading A4K. [Also in Division B5] A composite synthetic fibre or filament comprises an outer unorientated polyolefine shell or sheath whose radius to annular wall thickness ratio is at least 4 to 1, and a core of a polyurethane foam composition. The fibre or filiament may be made by preparing a polyurethane premix by blending a polyester or a polyether resin, water, and a catalyst for the formation of a polyurethane, adding thereto an organic polyisocyanate, e.g. a di-isocyanate, mixing the resulting composition thoroughly to form a foam-producing composition, and immediately thereafter partly immersing hollow unorientated polyolefine fibres to a sufficient depth in the composition, applying suction to ends of the fibres projecting above .the composition to draw -the composition into the interiors of the fibres and retaining the composition therein until a polyurethane foam is formed therein. The ...

FLEXIBLE POLYMER FIBERS, SPIN NOZZLES TO YOUR PRODUCTION AND FROM IT MANUFACTURED ARTICLES

METHOD OF MAKING A WEB WHICH IS EXTENSIBLE IN AT LEAST ONE DIRECTION

Stretchable polymeric fibers and articles produced therefrom

Elastomer fibers and methods of making and using thereof

The invention relates to a fiber excellent in cool contact feeling which is excellent in hand and skin touch and capable of preventing unpleasant feeling in the wet state while also having excellent elasticity. The invention also relates to fabric, clothing, and underwear excellent in cool contact feeling and obtainable by using said fiber as well as the methods of making the fibers and articles thereof.

DURABLE HIGHLY CONDUCTIVE SYNTHETIC FABRIC CONSTRUCTION

A fabric is provided comprising functional filaments, wherein each filament contains electrically conductive polymer material. In this way, the fabric is made conductive and has static dissipation properties comparable to metal- based fabrics. At the same time, the fabric also has desirable physical properties comparable to non-conductive synthetic fabrics.

ARCHITECTURAL CONCRETE HAVING A REINFORCING POLYMER AND PROCESS TO MAKE SAME

A concrete article comprised of concrete having therein a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester. The concrete article is made by mixing concrete, water and a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester and curing said concrete mixture forming the concrete article.

ELASTIC MONOFILAMENT

The present invention provides an elastic monofilament having exceptional fatigue resistance and elasticity especially in a bending direction and exceptional creep properties after high temperature is applied. This elastic monofilament has a sheath-core conjugated structure having a diameter of 0.1-1.0 mm and a core component ratio of 2-40 vol.%. In the elastic monofilament, the core component is a thermoplastic polyester having 95-100 mass% of thermoplastic polyester units in the polymer, the sheath component is a copolymerization system thermoplastic elastomer having a hard segment and a soft segment, and the tensile strength of the elastic monofilament is 0.3-3.0 cN/dtex.

Stereocomplex crystal polylactic acid nanofiber, bacteriostatic stereocomplex crystal polylactic acid nanofiber as well as preparation method and application thereof

High moisture regaining synthetic fiber and preparation method thereof

접촉 냉감 및 염색 견뢰도가 우수한 포지

... 옥시메틸렌기와 옥시알킬렌기를 함유하고, 상기 폴리아세탈 코폴리머(X) 중의 상기 옥시알킬렌기의 함유량이 옥시메틸렌기의 몰량과 옥시알킬렌기의 몰량의 합계에 대해서 0.2∼5.0mol%인 폴리아세탈 코폴리머(X)를 표면에 갖는 섬유로 이루어지고, 또한 온도 20℃, 상대 습도 65%의 환경하, 상기 포지와 온도 40℃의 저열판을 접촉압 0.098N/cm2로 접촉시켰을 때, 상기 저열판으로부터 상기 포지로 이동하는 단위 면적당 열유속 q(t)를 시간 t에 대해서 플롯하여 얻어지는 열유속 곡선의 최대값을 나타내는 qmax의 값이 0.2W/cm2 이상인 포지는, 생지로서 이용하더라도, 접촉 냉감, 염색 견뢰도, 속건성, 광택성이 우수한 포지이다.

DURABLE HIGHLY CONDUCTIVE SYNTHETIC FABRIC CONSTRUCTION

A fabric is provided comprising functional filaments, wherein each filament contains electrically conductive polymer material. In this way, the fabric is made conductive and has static dissipation properties comparable to metal-based fabrics. At the same time, the fabric also has desirable physical properties comparable to non-conductive synthetic fabrics. © KIPO & WIPO 2007 ...

Polyurethane-nylon 6 eccentric sheath-core conjugate fiber

The purpose of the present invention is to provide a polyurethane-nylon 6 eccentric sheath-core conjugate fiber which can obtain an excellent soft stretchable woven/knitted fabric and ensure the quality of stockings. The present invention relates to an eccentric sheath-core conjugate fiber being characterized by having: (1) a core component of a thermoplastic polyurethane; and (2) a sheath component of nylon 6, wherein the curvature of a cross section is 15% or less and the CV value of the curvature of a cross section is 0.40 or less.

PROCESS FOR MAKING NONWOVEN WEBS

A nonwoven web comprising bicomponent fibers. The fibers have continuous phases each of a first polyarylene sulfide (PAS) component and a polymer component. The polymer component may also be a second polyarylene sulfide. The first polyarylene sulfide component contains a tin or a zinc additive or both, and the first polyarylene sulfide component of any given fiber is at least partially exposed to the external surface of that fiber.

ELASTIC SPUNBONDED NONWOVEN AND COMPOSITE NONWOVEN COMPRISING THE SAME

The spunbonded nonwoven (W) has high elastic recovery properties and comprises a plurality of multi-component filaments. Each filament, preferably of the sheath/core type, comprises at least a first polymeric component and a second polymeric component. The first polymeric component comprises thermoplastic polyurethane, and the second polymeric component comprises an elastic propylene-based olefin copolymer, and more particularly an ethylene propylene copolymer, preferably comprising at least 80wt% of propylene units. Said spunbonded nonwoven (W) can be easily thermal- bonded with polyolefin-based nonwoven layer(s), especially polypropylene-based layer(s), in order to make a composite nonwoven, particularly suitable for the hygienic industry (diapers,...).

FIBERS MADE FROM SOLUBLE POLYMERS

A fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition.

FUSIBLE BICOMPONENT SPANDEX

Included are segmented polyurethane elastic fibers or spandex fibers, capable of bonding to polymer fiber such as nylon or polyamide fibers, in addition to bonding to itself, for apparel textile applications. More particularly the invention relates to bicomponent spandex fibers, with a heat resistant core and a heat sensitive sheath, spun from polymer solutions. The nylon fabrics containing such spandex fibers have enhanced stretch performance and improved surface appearance after heat treatment to activate the fusing and bonding between nylon fibers and spandex fibers.

COAL COMBUSTION FLUE GAS FILTERS

A filter assembly comprising a frame and a fabric mounted on said frame, wherein said fabric comprises fibers (F) comprising at least one polymer material (P) selected from the group consisting of a poly(biphenyl ether sulfone), a poly(imide sulfone) and blends thereof, and, passing through said filter assembly, a coal combustion flue gas.

SYNTHETIC FIBER CAPABLE OF ABSORBING AND DESORBING MOISTURE, ENTANGLED YARN BLEND USING THE SAME, KNITTED AND WOVEN GOODS USING THESAME, AND NONWOVEN FABRIC USING THE SAME

A synthetic fiber capable of absorbing and desorbing moisture comprising a component capable of absorbing and desorbing moisture and a fiber-forming polymer. The fiber of the present invention has a moisture absorption of 1.5 % or more when it is allowed to reach a moisture equilibrium under the circumstance of 25 °C x 60 % RH and then is allowed to stand for 30 min. under the circumstance of 34 °C x 90 % RH, and has a moisture desorption of 2 % or more when it is allowed to reach a moisture equilibrium under the circumstance of 34 °C x 90 % RH and then is allowed to stand for 30 min. under the circumstance of 25 °C x 60 % RH. The fiber also has a value of -1 to 5 in terms of b value in the CIE-LAB color system when it is allowed to stand for 30 days.

MOISTURE-ABSORBING CORE-SHEATH COMPOSITE YARN, AND FABRIC

A moisture-absorbing core-sheath composite yarn has a sheath polymer made of a polyamide, a core polymer is a polyetheresteramide copolymer, and the strength retention after a 150° C. 1-hour dry heat treatment is 50% or higher. The core-sheath composite yarn has high moisture-absorbing performance, is more comfortable than natural fibers, and can retain the soft texture, durability, and moisture-absorbing/releasing performance even when laundered and dried repeatedly. 13-. (canceled)4. A hygroscopic core-sheath composite yarn comprising polyamide as a sheath polymer and a polyether ester amide copolymer as a core polymer , the yarn having a strength retention rate of 50% or more after undergoing dry heat treatment at 150° C. for 1 hour.5. The hygroscopic core-sheath composite yarn as set forth in claim 4 , having a ΔMR value of 5.0% or more and a ΔMR retention rate of 70% or more after undergoing dry heat treatment at 150° C. for 1 hour.6. A fabric comprising claim 4 , at least partly claim 4 , a hygroscopic core-sheath composite yarn as set forth in .7. A fabric comprising claim 5 , at least partly claim 5 , a hygroscopic core-sheath composite yarn as set forth in . This disclosure relates to a hygroscopic core-sheath composite yarn and fabric.Synthetic fibers made of thermoplastic resins including polyamide and polyester are widely used for clothing and industrial applications because of being high in strength, chemical resistance, heat resistance and the like.In particular, in addition to its unique characteristics including softness, high tensile strength, coloring property in dyeing processes, and high heat resistance, polyamide fiber is so high in hygroscopicity that it is widely used for applications such as inner wear and sports wear. However, polyamide fibers are not sufficiently hygroscopic compared to natural fibers such as cotton and have some problems such as undesired stuffiness and stickiness, leading to inferior comfortability to natural fibers. ...

CONJUGATED FIBER

A conjugated fiber includes a core and a sheath. The sheath covers the core, and a melting point of the sheath is lower than a melting point of the core by 60° C. to 160° C.

Hydrophile, polymere Mehrkomponentenfäden und nichtgewebte Stoffe daraus

DEHNBARE POLYMERFASERN, SPINNDÜSEN ZU IHRER HERSTELLUNG UND DARAUS HERGESTELLTE ARTIKEL

Composite high-bulk elastic yarns and process for producing the same

Composite high-bulk elastic yarns are made by simultaneously extruding spinning solutions or melts of an elastic polymer and of a non-elastic polymer through at least one spinneret into a coagulating or quenching medium, the ratio of the weight of elastic polymer extruded to the weight of non-elastic polymer extruded being 1-99 to 60-40, stretching the resultant coagulated blended fibre bundles, in which the elastic fibres and the non-elastic fibres are substantially separated, and feeding the bundles to a false-twisting apparatus or to a spinning frame with stretch-breaking mechanism under pre-tension of less than 0.2 g/den., thereby converting the bundles into yarns. In various embodiments elastic and non-elastic polymers may be extruded from different orifices of the same spinneret or from each orifice of different spinnerets, or both elastic and non-elastic polymers may be extruded from each orifice of a spinneret or both may be extruded from some of the orifices of a spinneret while ...

HUMIDITY ABSORBING AND DELIVERING SYNTHETIC FIBER AND OF IT MAKING INTERTWINING THREAD MIXTURE, CORD GOODS, FABRIC AND BONDED FABRICS

ANTISTATIC FILAMENTS

METHOD OF FORMING A 3-DIMENSIONAL FIBER INTO A WEB

Fibers made from soluble polymers

A fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition.

Multicomponent fibers

FLAME RETARDANT FABRIC

A flame retardant fabric comprising bicomponent fibers having a sheath and a core wherein the sheath comprises a fully aromatic thermoplastic polymer with a Limited Oxygen Index of at least 26 and the core comprises a thermoplastic polymer.

FINE FIBERS MADE FROM POLYMER CROSSLINKED WITH RESINOUS ALDEHYDE COMPOSITION

A fine fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde (e.g., melamine-aldehyde) composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition.

CORE/SHEATH TYPE TEMPERATURE-SENSITIVE SHAPE-TRANSFORMABLE COMPOSITE FILAMENTS

In a core/sheath type temperature-sensitive shape-transformable composite filament comprising a thermoplastic resin (A) and a thermoplastic polymer (B) having a glass transition temperature within the range of from 0.degree.C to 70.degree.C, the composite filament is constituted in proportions satisfying the following expressions (1), (2) and (3). In the core; (A)/(B) = 5/95 to 90/10 (% by weight) (1) In the sheath; (A)/(B) = 100/0 to 50/50 (% by weight) (2) Core/sheath = 10/90 to 95/5 (% by weight) (3) The filament is useful as doll hair the hair style of which is thermally shape-transformable to any desired shapes even by infants , and is easily fixable to the transformed shape by cooling.

MiRNAs-loaded double-layer artificial blood vessel electrospinning material and preparation method thereof

Method for preparing phenol-modified melamine fibers by one-kettle method

Combined resin 3d printing wire and preparation method thereof

Core-sheath conjugate thread, fabric, clothing article, and method for producing core-sheath conjugate thread

Provided is a novel conjugate thread which exhibits excellent elasticity, transparency and appropriate fitting properties, and has sufficient strength and good texture. Also provided are a fabric formed from said conjugate thread, and a clothing article using said fabric. Moreover, provided is a method for producing a novel conjugate thread which exhibits excellent elasticity, transparency and appropriate fitting properties, and has sufficient strength and good texture. The core-sheath conjugate thread has a core containing a polyurethane, and a sheath containing an elastomer, wherein the polyurethane is a double prepolymer type polyurethane obtained by reacting: a prepolymer having isocyanate groups at both terminals, which is obtained by reacting a polyol and a diisocyanate; and a prepolymer having hydroxyl groups at both terminals, which is obtained by reacting a polyol, a diisocyanate, and a low molecular weight diol. The core-sheath conjugate thread is obtained by composite spinning ...

METHOD OF PRODUCING COMPOSITE FIBRES

Composite elastic threads inflating and proceeded for the production of these threads

SELF-CRIMPING CONJUGATE FILAMENT AND SEAMLESS BAND FORMED THEREFROM AND METHOD OF MAKING SAME

PURPOSE: A device provided for a method of forming melt attenuated conjugate filaments which are wrapped after melt attenuation to form a band being improved extensibility in the radial direction and a high degree of recovery. CONSTITUTION: Side-by-side conjugate filaments made from thermoplastic elastomers and spunbond -type polypropylenes exhibit an extremely high propensity to self-crimp. At appropriate polymer ratios and processing conditions (with mechanical or aerodynamical drawing) the crimp develops spontaneously after relaxation of the attenuation force. The amount of crimp and the degree of elastic properties depend on the elastomer content and the processing conditions. Combination of exceptionally high crimp and an elastomer component imparts stretch and recovery properties. A filaments is wrapped around a cylindrical supporting structure to create a continuous, seamless elastic band, useful for body-fit articles. COPYRIGHT 2000 KIPO ...

흡습성 심초 복합사 및 포백

... 초부 폴리머가 폴리아미드, 심부 폴리머가 폴리에테르에스테르아미드 공중합체, 150℃, 1시간 건열 처리 후의 강도 유지율이 50% 이상인 흡습성 심초 복합사. 높은 흡습 성능을 갖고, 천연 섬유를 넘는 쾌적성과, 세탁 건조를 반복하여 실시해도 소프트한 감촉, 내구성 및 흡방습 성능을 유지할 수 있는 심초 복합사를 제공한다.

액체 필터용 여과재 및 액체 필터

... 본 발명의 과제는, 저단위 면적당 중량이면서 고강도, 고포집성, 고수명을 갖는 액체 필터용 여과재 및 액체 필터를 제공하는 것이며, 해결 수단은 섬유 직경이 4.0㎛ 이하이면서 애스펙트비가 100 내지 2500인 주체 섬유와, 섬유 직경이 3.0㎛ 이하이면서 애스펙트비가 100 내지 2500인 바인더 섬유를 사용하고, 상기 바인더 섬유의 중량 비율이 여과재 중량에 대하여 10 내지 50중량％이면서 단위 면적당 중량이 5 내지 80g/m2의 범위 내인 액체 필터용 여과재 및 액체 필터를 얻는 것이다.

MULTICOMPONENT FIBERS

The present invention is directed to multicomponent fibers having poly(ethylene oxide) in at least a portion of the exposed surface of the fiber. In one embodiment, the PEO is a grafted poly(ethylene oxide). The multicomponent fibers of the present may be used to manufacture nonwoven webs that can be used as components in medical and health care related items, wipes and personal care absorbent articles such as diapers, training pants, incontinence garments, sanitary napkins, pantiliners, bandages and the like.

COMPOSITE ELASTIC YARN AND PROCESS FOR PREPARING THE SAME

A composite elastic yarn having excellent heat resistance produced by performing composite spinnning, in a core-sheath arrangement, preferably a concentric core-sheath arrangement, of a polyurethane, as a core component, crosslinked by a polyisocyanate at a crosslinking density (Y) of 15 mumol/g or more to thereby have improved heat resistance and a non-polyurethane thermoplastic elastomer, as a sheath component, particularly a polyester elastomer, a polyamide elastomer or a polystyrene elastomer, under such conditions that the core to sheath composite ratio (X) is in the range of from 3/1 to 100/1, and that the relationship of Y - X + 35 is satisfied. This elastic yarn is free of stickiness and can be wound at a high speed. Farther, the yarn is easy to unravel and its workability is excellent. This elastic yarn is suited for use in various fields, such as sock, tricot, panty stocking, swimsuit and foundation.

Architectural concrete and process to make same

A concrete article comprised of concrete having therein a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester. The concrete article is made by mixing concrete, water and a reinforcing polymer that has a surface comprised of a thermoplastic hydroxy-functionalized polyether or polyester and curing said concrete mixture forming the concrete article.

FILTER MEDIUM FOR LIQUID FILTER AND LIQUID FILTER

The invention addresses the problem of providing a filter medium for a liquid filter, which has a low weight per unit and yet has high strength, high collectability, and a long life, and also a liquid filter. As a means for resolution, using a main fiber having a fiber diameter of 4.0 μm or less and an aspect ratio of 100 to 2,500 and a binder fiber having a fiber diameter of 3.0 μm or less and an aspect ratio of 100 to 2,500, a filter medium for a liquid filter in which the weight proportion of the binder fiber relative to the weight of the filter medium is 10 to 50 wt %, and the weight per unit is within a range of 5 to 80 g/m2, and also a liquid filter are obtained.

SPLITTABLE MULTICOMPONENT ELASTOMERIC FIBERS

Thermally divisible multicomponent fibers having at least a first component including an elastomeric polymer and at least a second component including a non-elastomeric polymer. The multicomponent fibers are useful in the manufacture of nonwoven structures, and in particular nonwoven structures used as synthetic suede and filtration media.

METHOD OF FORMING A 3-DIMENSIONAL FIBER AND A WEB FORMED FROM SUCH FIBERS

A method of forming 3-dimensional fibers is disclosed along with a web formed from such fibers. The method includes the steps of co-extruding a first component and a second component. The first component has a recovery percentage R1 and the second component has a recovery percentage R2, wherein R1 is higher than R2. The first and second components are directed through a spin pack to form a plurality of continuous molten fibers. The molten fibers are then routed through a quenching chamber to form a plurality of continuous cooled fibers. The cooled fibers are then routed through a draw unit to form a plurality of continuous, solid linear fibers. The solid fibers are then accumulated and stretched by at least about 50 percent. The plurality of stretched fibers are then cut and allowed to relax such that a plurality of 3-dimensional, coiled fibers is formed.

MULTICOMPONENT STAPLE FIBER WITH POLYARYLENE SULFIDE COMPONENT

STRETCHABLE FIBERS OF POLYMERS, SPINNERETS USEFUL TO FORM THE FIBERS, AND ARTICLES PRODUCED THEREFROM

STRETCHABLE POLYMERIC FIBERS AND ARTICLES PRODUCED THEREFROM

ПОЛИМЕРНЫЙ МАТЕРИАЛ

КОНСТРУКЦИЯ ИЗ ДОЛГОВЕЧНОЙ ВЫСОКОПРОВОДЯЩЕЙ СИНТЕТИЧЕСКОЙ ТКАНИ

... 1. Полимерное волокно, применяемое в промышленных тканях и имеющее желобчатое поперечное сечение, причем желобки указанного волокна по существу заполнены электропроводящим полимерным материалом, механически закрепленным на месте. 2. Волокно по п.1, причем указанное волокно включает проводящий полимерный материал, смешанный с полимерными материалами, которые могут быть ориентированы. 3. Волокно по п.1, причем указанное волокно представляет собой двухкомпонентное волокно, содержащее проводящий полимерный материал и изготовленное экструзией из расплава. 4. Волокно по п.1, причем указанное волокно включает ориентированную структуру, покрытую проводящим полимерным материалом. 5. Волокно по п.1, на которое проводящий полимер наносят одним из следующих способов: нанесение покрытия погружением, напыление из раствора, диспергирование на моноволокно и термическое напыление. 6. Волокно по п.1, причем указанное волокно включает сто процентов проводящего полимерного материала, выбранного из класса полианилинов ...

ELASTOMERE MEHRKOMPONENTENFASERN,VLIESBAHNEN UND VLIESSTOFFE

SPALTBARE ELASTOMERE MEHRKOMPONENTENFASERN

IMPLANTIERBARE FASERN UND MEDIZINISCHE GEGENSTÄNDE

Energy absorbing material

ELASTOMERS MULTI-COMPONENT FIBERS, FLEECE COURSES AND BONDED FABRICS

THERMOPLASTIC FIBERS AND TEXTILE PLANAR FORMATION

USE OF COAL COMBUSTION FLUE GAS FILTER

COMPOUND FIBER FROM CELLULOSE POLYVINYL ALCOHOL AS WELL AS MANUFACTURING PROCESS FOR IT

ELASTOMERIC MULTICOMPONENT FIBERS, NONWOVEN WEBS AND NONWOVEN FABRICS

FLAME RETARDANT FABRIC

ELASTIC SPUNBONDED NONWOVEN AND COMPOSITE NONWOVEN COMPRISING THE SAME

The spunbonded nonwoven (W) has high elastic recovery properties and comp rises a plurality of multi-component filaments. Each filament, preferably of the sheath/core type, comprises at least a first polymeric component and a second polymeric component. The first polymeric component comprises thermopl astic polyurethane, and the second polymeric component comprises an elastic propylene-based olefin copolymer, and more particularly an ethylene propylen e copolymer, preferably comprising at least 80wt% of propylene units. Said s punbonded nonwoven (W) can be easily thermal- bonded with polyolefin-based n onwoven layer(s), especially polypropylene-based layer(s), in order to make a composite nonwoven, particularly suitable for the hygienic industry (diape rs,...).

IMPLANTABLE FIBERS AND MEDICAL ARTICLES

An implantable medical article as well as an implantable fiber which is particularly useful for medical implants is disclosed. The fiber comprises a first component formed from a substantially resorbable material and a second component formed from a fiber-forming polymer.

Skin-core structure aerogel composite fibers as well as preparation method and application thereof

Product including clothing containing knitted fabric

FIBER BLEND, SPUN YARN, TEXTILE MATERIAL, AND METHOD FOR USING THE TEXTILE MATERIAL

The invention provides a fiber blend, spun yarn, and textile material comprising a plurality of cellulosic fibers and a plurality of first synthetic fibers. The first synthetic fibers comprise a polyoxadiazole polymer, and the polyoxadiazole polymer comprises a plurality of first repeating units and a plurality of second repeating units, the first repeating units conforming to the structure of Formula (I) below and the second repeating units conforming to the structure of Formula (II) below 2. The fiber blend of claim 1 , wherein the cellulosic fibers comprise about 40 wt. % to about 80 wt. % of the fiber blend.3. The fiber blend of claim 1 , wherein Y is bromine.4. The fiber blend of claim 1 , wherein the first synthetic fibers comprise about 10 wt. % to about 50 wt. % of the fiber blend.5. The fiber blend of claim 1 , wherein the ratio of the number of first repeating units in the polyoxadiazole polymer to the number of second repeating units in the polyoxadiazole polymer is from about 5:1 to about 25:1.6. The fiber blend of claim 5 , wherein the ratio of the number of first repeating units in the polyoxadiazole polymer to the number of second repeating units in the polyoxadiazole polymer is from about 9:1 to about 20:1.7. The fiber blend of claim 1 , wherein the fiber blend comprises about 5 wt. % to about 15 wt. % of a plurality of second synthetic fibers.8. The fiber blend of claim 7 , wherein the second synthetic fibers are selected from the group consisting of antistatic fibers claim 7 , polyamide fibers claim 7 , polyester fibers claim 7 , and blends thereof.9. The fiber blend of claim 1 , wherein the fiber blend further comprises a phosphorous-containing flame retardant.11. The spun yarn of claim 10 , wherein the cellulosic fibers comprise about 40 wt. % to about 80 wt. % of the spun yarn.12. The spun yarn of claim 10 , wherein Y is bromine.13. The spun yarn of claim 10 , wherein the first synthetic fibers comprise about 10 wt. % to about 50 wt. % of the ...

ANTIMICROBIAL FIBERS

The invention provides an antimicrobial fiber which exhibits excellent antimicrobial properties even without the addition of antimicrobial agents and can remain antimicrobial even after repeated washing. The antimicrobial fiber comprises a fiber having on a surface thereof a polyacetal copolymer (X) containing oxyalkylene groups, the molar amount of oxyalkylene groups in the polyacetal copolymer (X) being 0.2 to 5 mol % relative to the total of the molar amount of oxymethylene groups and the molar amount of oxyalkylene groups. 2. The method according to claim 1 , wherein the step of drawing the fiber is performed so that orientation factor of the polyacetal copolymer (X) is not less than 60%.3. The method according to claim 1 , wherein the fiber having the polyacetal copolymer (X) on a surface thereof is a monolayer fiber of the polyacetal copolymer (X).4. The method according to claim 1 , wherein the fiber having the polyacetal copolymer (X) on a surface thereof is a multilayer fiber having a coating of the polyacetal copolymer (X) on a fiber including a thermoplastic resin.5. The method according to claim 1 , wherein the fiber having the polyacetal copolymer (X) on a surface thereof is a conjugate fiber having the polyacetal copolymer (X) on a surface of a fiber including a thermoplastic resin.6. The method according to claim 4 , wherein the thermoplastic resin is one or more selected from polyacetal homopolymers claim 4 , polyacetal copolymers other than the polyacetal copolymer (X) claim 4 , polyolefin resins claim 4 , polylactic acid resins claim 4 , nylon resins claim 4 , polyester resins claim 4 , polyvinyl resins and elastomers of these resins.7. A method of manufacturing an antimicrobial nonwoven fabric comprising the step of fabricating the antimicrobial fiber manufactured according to claim 1 , into the nonwoven fabric.8. A method of manufacturing an antimicrobial filter comprising the step of fabricating the antimicrobial nonwoven fabric manufactured ...

MONOFILAMENT, FABRIC AND PRODUCTION METHOD

A monofilament is particularly suited for use as a component in an industrial textile such as a papermachine clothing (PMC) fabric. The monofilament is formed from a composition including more than 70 weight % to 99 weight % polyamide and from 1 weight % to less than 30 weight % polyphenylene ether. 1. A monofilament , comprising:a monofilament body formed from a composition including more than 70 weight % to 99 weight % polyamide, and from 1 weight % to less than 30 weight % polyphenylene ether.2. The monofilament according to claim 1 , configured for use as a component in an industrial textile such as a papermachine clothing fabric.3. The monofilament according to claim 1 , wherein said composition does not include any compatibilizer.4. The monofilament according to claim 1 , wherein said composition does not include any compound belonging to the group consisting of fumaric acid claim 1 , maleic acid claim 1 , itaconic acid claim 1 , dimethylmaleate claim 1 , maleimide claim 1 , tetrahydrophthalimide claim 1 , maleic anhydride claim 1 , itaconic anhydride claim 1 , glutaconic anhydride claim 1 , citraconic anhydride and tetrahydrophthalic anhydride.5. The monofilament according to claim 1 , wherein the composition does not include any functionalized olefinic elastomer.6. The monofilament according to claim 1 , wherein a polymer part of said composition is a binary mixture of polyamide and polyphenylene ether.7. The monofilament according to claim 1 , wherein said polyamide is selected from the group consisting of PA6 claim 1 , PA6.6 claim 1 , PA6.T claim 1 , PA6.10 claim 1 , PA6.12 claim 1 , PA6 claim 1 ,6.6 claim 1 , PA4.10 claim 1 , PA5.6 claim 1 , PA5.10 claim 1 , PA5.12 and mixtures thereof.8. The monofilament according to claim 1 , wherein said monofilament body has a loop tenacity which is at least 20% greater than the loop tenacity of a comparative monofilament claim 1 , wherein the comparative monofilament is formed in an identical manner as the ...

COMPOSITE FIBER

The present invention relates to a composite fiber for obtaining a fiber having a strength at 100% elongation of 0.04 cN/dtex or less, 1. A composite fiber for obtaining a fiber having a strength at 100% elongation of 0.04 cN/dtex or less ,wherein the composite fiber is composed of component X comprising a polyvinyl-based thermoplastic elastomer, or a thermoplastic polyurethane elastomer having a glass transition temperature of 0° C. or lower, and component Y which is an easily soluble thermoplastic polymer,wherein the composite ratio (mass ratio) X:Y of the component X and the component Y is within the range of from 90:10 to 50:50, andwherein the composite fiber has a core-sheath structure in which the component X constitutes the core component, and the component Y constitutes the sheath component, in a cross section of the fiber.2. The composite fiber according to claim 1 , wherein the easily soluble thermoplastic polymer is at least one selected from the group consisting of a polyvinyl alcohol-based polymer and an easily soluble polyester-based polymer.3. The composite fiber according to claim 1 , wherein the component X is made of a resin composition comprising the polyvinyl-based thermoplastic elastomer claim 1 , and wherein the resin composition comprises at least the following 1) and 2): a block copolymer (A) composed of a polymer block(s) a) containing at least two vinyl aromatic compounds as a main component(s), and a polymer block(s) b) containing at least one conjugated diene compound as a main component, wherein from 50 to 100% by mass of the block copolymer (A) has a weight average molecular weight of 200,000 or less; and', 'a block copolymer (A′) obtained by hydrogenating the block copolymer (A); and, '1) 100 parts by mass of at least one selected from the group consisting of2) from 50 to 300 parts by mass of a softener for a hydrocarbon-based rubber.4. The composite fiber according to claim 1 , wherein the composite fiber has a single fiber fineness ...

CORE-FREE THERMOPLASTIC POLYURETHANE YARN WITH ADDED NANOSILICA

The present invention provides a resin for thermoplastic polyurethane (TPU) yarn using nanosilica and a method for manufacturing the same, where nanosilica having a particle size of 100 nm or less is added as a thickening agent for improving productivity in the production of and glossiness of TPU yarns, such as mono-filament TPU yarns having a denier count of 50 to 350 or multi-filament TPU yarns having a denier count of 50 or less without applying a coating of TPU to the surface of polyester or nylon yarns, thereby securing desired workability and properties and realizing continuous drawing of TPU yarns without thread breakage. The content of nanosilica from 0.3 to 7 phr in TPU resin is optimal for productivity of mono- or multi-filament yarns, whereas the content of nanosilica from 0.5 to 1.5 phr is optimum for both productivity and cost reduction. 1. A core-free thermoplastic polyurethane (TPU) yarn formed with a resin , wherein the resin comprises a thermoplastic polyurethane and nanosilica mixed with the thermoplastic polyurethane by melt extrusion , wherein the core-free TPU yarn comprises the nanosilica in a range between 0.3 and 7 parts per hundreds resin (phr) and having a nanosilica particle diameter of 100 nm or less , which provides drawing of the core-free TPU continuously and without thread breaking.2. The core-free TPU yarn of claim 1 , wherein the resin is prepared using liquid base materials of a polyol claim 1 , an isocyanate and a glycol chain extender claim 1 , wherein one of the liquid base materials is initially mixed with the nanosilica.3. The core-free TPU yarn of claim 1 , wherein the core-free TPU is a multi-filament yarn formed with a plurality of single filament yarns claim 1 , each of the single filament yarns having a denier count of 50 or less.4. The core-free TPU of claim 1 , wherein the core-free TPU is a mono-filament yarn having a denier count of 50 to 350.5. The core-free TPU yarn of claim 1 , wherein the thermoplastic ...

BI-COMPONENT FIBER FOR THE PRODUCTION OF SPUNBOND FABRIC

A bi-component fiber (), in particular for the production of spunbond fabrics (), has a first component () and a second component (), whereby the first component () has a first polymer as an integral part and the second component has a second polymer as an integral part. It is provided that the difference between the melting points of the first component () and the second component () is less than or equal to 8° C. 1. Bicomponent fiber for the production of spunbond fabrics , with a first component and a second component , whereby the first component has a first polymer as an integral part and the second component has a second polymer as an integral part ,characterized in thatthe first component and the second component have melting points that differ from each other by an amount that is less than or equal to 8° C.2. Bicomponent fiber according to claim 1 , characterized in that the difference between the melting points of the first component and the second component is between 1° C. to 8° C.3. Bicomponent fiber according to claim 1 , characterized in that the difference between the melting points of the first component and the second component is in a range from 1° C. to 6° C.4. Bicomponent fiber according to claim 1 , characterized in that the first component and the second component have melt-flow indices that differ by an amount that is less than or equal to 25 g/10 minutes.5. Bicomponent fiber according to claim 4 , characterized in that the melt-flow indices of the first component and the second component in each case are less than or equal to 50 g/10 minutes.6. Bicomponent fiber according to claim 1 , characterized in that the component that forms an outer surface of the bicomponent fiber viewed in the cross-section of the fiber has a lower melt-flow indice than the other component.7. Bicomponent fiber according to characterized in that the component with the lower melting point surrounds the component with the higher melting point.8. Bicomponent fiber ...

PROCESS FOR PREPARING YARN DERIVED FROM ARAMID COPOLYMER FIBER HAVING LOW RESIDUAL SULFUR

The present invention concerns processes for producing a yarn comprising polymer comprising imidazole groups, the process having the following steps: (a) spinning a solution of polymer in sulfuric acid to give rise to a plurality of dope filaments; (b) coagulating the plurality of dope filaments into a multi-filament as-spun yarn; and (c) washing the as-spun multi-filament yarn with an aqueous acid comprising a halide or an aqueous salt comprising a halide or combination thereof. 1. A process for producing a yarn comprising polymer , said polymer comprising imidazole groups , the process having the following steps:(a) spinning a solution of polymer in sulfuric acid to give rise to a plurality of dope filaments;(b) coagulating the plurality of dope filaments into a multi-filament as-spun yarn; and(c) washing the as-spun multi-filament yarn with an aqueous acid comprising a halide or an aqueous salt comprising a halide or combination thereof.2. The process of wherein said polymer comprises derivatives of 5(6)-amino-2-(p-aminophenyl)benzimidazole claim 1 , aromatic diamine claim 1 , and aromatic diacid-chloride.3. The process of claim 1 , wherein said as-spun multi-filament yarn after washing step (c) has a sulfur content of less than 3 weight percent.4. The process of claim 3 , wherein said as-spun multi-filament yarn after washing step (c) has a sulfur content of less than 1 weight percent.5. The process of claim 4 , wherein said as-spun multi-filament yarn after washing step (c) has a sulfur content of less than 0.1 weight percent.6. The process of claim 1 , where said as-spun multi-filament yarn after washing step (c) has a sulfur content of 0.05 to 3 weight percent.7. The process of where said as-spun multi-filament yarn after washing step (c) has a sulfur content of 0.01 to 0.08 weight percent.8. The process of claim 2 , wherein said aromatic diacid-chloride is terephthaloyl dichloride.9. The process of claim 2 , wherein said aromatic diamine is para- ...

FILAMENT FOR AN ADDITIVE MANUFACTURING PROCESS

A filament suitable for use with a fused filament fabrication process includes an elongated body. The elongated body defines and extends along a central longitudinal axis of the elongated body. The filament includes at least one continuous reinforcing strand, which is encapsulated within the elongated body. The continuous reinforcing strand extends uninterrupted between a first end and a second end of the elongated body, along the central longitudinal axis. The elongated body includes a ferromagnetic sensitive element that is capable of inductively heating the elongated body. The ferromagnetic sensitive element may include iron particles mixed with the polymer forming the elongated body, or may be formed by the continuous reinforcing strand including a ferromagnetic sensitive material. 1. A filament for an additive manufacturing process , the filament comprising:an elongated body defining and extending along a central longitudinal axis;at least one continuous reinforcing strand encapsulated within the elongated body, and extending along the central longitudinal axis.2. The filament set forth in claim 1 , wherein the elongated body extends a length along the central longitudinal axis claim 1 , and wherein the at least one continuous reinforcing strand extends uninterrupted along the entire length of the elongated body.3. The filament set forth in claim 1 , wherein the at least one continuous reinforcing strand is one of a glass fiber claim 1 , a carbon fiber claim 1 , or a metal fiber.4. The filament set forth in claim 1 , wherein the at least one continuous reinforcing strand includes a plurality of continuous reinforcing strands laterally spaced from each other within the elongated body.5. The filament set forth in claim 1 , further comprising a ferromagnetic sensitive element capable of inductively heating the elongated body.6. The filament set forth in claim 5 , wherein the ferromagnetic sensitive element is an electrically conductive material.7. The filament set ...

BICOMPONENT SPANDEX WITH REDUCED FRICTION

Disclosed herein are spandex fibers having reduced friction. The spandex fibers have a sheath-core cross-section with a lubricating additive is included in the sheath. A fusing additive is optionally included where a coalesced multifilament spandex yarn is desired. 1. An article comprising a low-friction spandex elastomeric yarn comprising:(a) a polyurethane bicomponent fiber having a core and a sheath; and(b) a lubricating additive;wherein the elastomeric yarn is a single filament yarn.2. The article of claim 1 , wherein the elastomeric yarn further comprises a fusing additive.3. The article of claim 1 , wherein said yarn is a solution-spun yarn.4. The article of claim 1 , wherein said core comprises:(1) a polyurethane with a high melting point of 200° C. or higher,(2) a blend of at least one polyurethane and at least one polyurethane-urea or,(3) a polyurethane-urea with a melting point of 240° C. or higher.5. The article of claim 1 , wherein the lubricating additive comprises a crystalline material which shears into thin or flat platelets.6. The article of claim 1 , wherein the lubricating additive comprises a low-friction polymer.7. The article of claim 1 , wherein said lubricating additive is selected from the group consisting of mica claim 1 , graphite claim 1 , carbon black claim 1 , molybdenum disulfide claim 1 , talc claim 1 , boron nitride claim 1 , and mixtures thereof.8. The article of claim 1 , wherein said lubricating additive comprises a fluorine-containing polymer.9. The article of claim 1 , wherein said sheath comprises the lubricating additive in an amount from about 1% to about 25% by weight of the sheath.10. The article of claim 2 , wherein said sheath comprises the fusing additive in an amount from about 25% to about 75%.11. The article of claim 2 , wherein said sheath comprises the fusing additive in an amount from about 50% to about 70%.12. The article of claim 2 , wherein said sheath comprises the fusing additive in an amount from about 60% to ...

Hydrophilic polyurethane nanofiber and method for manufacturing same

The present disclosure is to provide a method for producing polyurethane (PU) nanofibers with significantly improved hydrophilicity by producing water-soluble polymer/PU blend nanofiber by coaxial-electrospinning water-soluble polymer and hydrophobic PU, and, subsequently, dissolving and removing the water-soluble polymer from the blend nanofiber in water.

IMPLANTABLE DEVICE COMPRISING A TEXTILE COMPONENT COMPRISING MULTIFILAMENT YARNS AND/OR SPUN YARNS MADE OF FIBERS COMPLETELY OR PARTIALLY COATED IN CYCLODEXTRIN POLYMER

The present invention relates to an implantable device comprising a textile component at least partially coated with a host polymer coating, said host polymer coating comprises a polymer of cyclodextrin(s) and/or derivatives of cyclodextrin(s) and/or inclusion complex(es) of cyclodextrin and/or inclusion complex(es) of cyclodextrin derivatives. Advantageously, said textile component comprises multifilament yarns and/or spun yarns made of fibers, at least a part of the filaments and/or fibers each having a diameter less than or equal to 25 micrometers. 1. An implantable device comprising a textile component at least partially coated with a host polymer coating , said host polymer coating comprising a polymer of cyclodextrin(s) and/or derivative(s) of cyclodextrin(s) and/or inclusion complex(es) of cyclodextrin and/or inclusion complex(es) of cyclodextrin derivative(s) , wherein said textile component comprises multifilament yarns and/or spun yarns made of fibers and wherein at least a part of the filaments and/or fibers each have a diameter of less than or equal to 25 micrometers.2. The implantable device as claimed in claim 1 , wherein the ratio of the mass of the host coating to the total mass of the textile component coated with said host polymer coating is greater than or equal to 10%.3. The implantable device as claimed in claim 1 , wherein the textile component has a surface density of less than or equal to 120 g/m.4. The implantable device as claimed in claim 1 , wherein the textile component comprises multifilament yarns and/or spun yarns made of fibers whose the titer of the filaments and/or the fibers is less than or equal to 10 dtex.5. The implantable device as claimed in claim 1 , wherein the textile component is a knitted component.6. The implantable device as claimed in claim 1 , wherein said device is selected from a list consisting of: a prosthesis for the treatment of a hernia in the abdominal region claim 1 , a ligament claim 1 , a prosthesis for ...

COMPOSITE PROSTHETIC DEVICES

The present disclosure provides composite prosthetic devices comprising two or more layers of electrospun polymers and methods of preparation thereof. In some embodiments, the two or more layers can be porous and in other embodiments, one or more components is nonporous. The composite prosthetic devices can comprise various materials and the properties of the prosthetic devices can be tailored for use in a range of different applications.

HYDROPHOBIC NANO-SILICA MIXED THERMOPLASTIC POLYURETHANE COATED YARN

A thermoplastic polyurethane coated yarn having excellent adhesive strength in which hydrophobic nano-silica is mixed. The nano-silica is contained in the range of 0.2-5 Parts per Hundred Resin (phr) and the nano-silica having a primary particle size of in a range of 1-100 nm. The thermoplastic polyurethane coating yarn mixed with the hydrophobic nano-silica of the present invention is uniformly coated with a thermoplastic polyurethane resin containing nano-silica containing a hydrophobic functional group on the surface of the core yarn, whereby the core yarn is biased to one side. Since no coating or uncoating occurs, the product quality and productivity are excellent, in addition to excellent durability and wear resistance of the thermoplastic polyurethane, mechanical strength and chemical resistance are improved. 1. A thermoplastic polyurethane coated yarn with hydrophobic nano-silica , which is coated a thermoplastic polyurethane resin on a surface thereof , the coated yarn comprising:the core yarn having the surface,wherein the thermoplastic polyurethane (TPU) resin contains a nano-silica in a range of 0.2˜5 Parts per Hundred Resin (phr), which includes a hydrophobic functional group is introduced on the surface thereof,wherein the nano-silica has a primary particle size in a range of 1˜100 nm.2. The TPU coated yarn with hydrophobic nano-silica of claim 1 ,wherein the hydrophobic functional group contained on the surface of the nanosilica particles is any one or more selected from alkyl group, dimethyl group, trimethyl group, dimethyl siloxane group, and methacryl group.3. The TPU coated yarn with hydrophobic nano-silica of claim 1 ,wherein the nano-silica forms a nano-silica aggregate having an aggregate an average size in a range of 100˜1200 nm.4. The TPU coated yarn with hydrophobic nano-silica of claim 1 ,wherein the core yarn is any one selected from polyester, nylon, acrylic, polyurethane, polyolefin, carbon fiber, glass fiber, and metal fiber.5. The TPU ...

POYLMERIC COMPOSITION FOR USE AS A TEMPORARY SUPPORT MATERIAL IN EXTRUSION BASED ADDITIVE MANUFACTURING

The polymeric composition of this invention can be used as a temporary support material in the additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, increasing the incidence of printer jamming, or requiring printers of increased complexity. This invention more specifically discloses a polymeric composition which is particularly useful as a temporary support material for utilization in three-dimensional printing, said polymeric composition being comprised of a first polymeric component which is suitable for use as a modeling material and a second polymeric component which is immiscible with the first polymeric component, wherein the polymeric composition has a continuous phase, wherein the continuous phase is comprised of the second polymeric component, and wherein the polymeric composition has a Shore A hardness of at least 80. 1. A polymeric composition which is particularly useful as a temporary support material for utilization in three-dimensional printing , said polymeric composition being comprised of a first polymeric component which is suitable for use as a modeling material and a second polymeric component which is immiscible with the first polymeric component , wherein the polymeric composition has a continuous phase , wherein the continuous phase is comprised of the second polymeric component , and wherein the polymeric composition has a Shore A hardness of at least 80.2. The polymeric composition as specified in wherein the first polymeric component is selected from the group consisting of poly(lactic acid) claim 1 , acrylonitrile-butadiene-styrene triblock polymers claim 1 , polycarbonate claim 1 , polystyrene claim 1 , high impact polystyrene claim 1 , polycaprolactone claim 1 , polyamides claim 1 , thermoplastic polyurethanes claim 1 , ethylene-vinyl acetate copolymers claim 1 , styrene-butadiene-styrene triblock polymers claim 1 , styrene-ethylene- ...

FILTER MEDIUM FOR LIQUID FILTER AND LIQUID FILTER

The invention addresses the problem of providing a filter medium for a liquid filter, which has a low weight per unit and yet has high strength, high collectability, and a long life, and also a liquid filter. As a means for resolution, using a main fiber having a fiber diameter of 4.0 μm or less and an aspect ratio of 100 to 2,500 and a binder fiber having a fiber diameter of 3.0 μm or less and an aspect ratio of 100 to 2,500, a filter medium for a liquid filter in which the weight proportion of the binder fiber relative to the weight of the filter medium is 10 to 50 wt %, and the weight per unit is within a range of 5 to 80 g/m, and also a liquid filter are obtained. 1. A filter medium for a liquid filter ,comprising a main fiber having a fiber diameter of 4.0 μm or less and an aspect ratio of 100 to 2,500 and a binder fiber having a fiber diameter of 3.0 μm or less and an aspect ratio of 100 to 2,500, the weight proportion of the binder fiber relative to the weight of the filter medium being 10 to 50 wt %; and{'sup': '2', 'having a weight per unit within a range of 5 to 80 g/m.'}2. The filter medium for a liquid filter according to claim 1 , wherein the main fiber includes a polyester fiber claim 1 , a polyphenylene sulfide fiber claim 1 , a polyolefin fiber claim 1 , or a nylon fiber.3. The filter medium for a liquid filter according to claim 1 , wherein the binder fiber includes a composite fiber or an undrawn fiber.4. The filter medium for a liquid filter according to claim 1 , wherein the filter medium for a liquid filter includes a wet-laid nonwoven fabric.5. The filter medium for a liquid filter according to claim 1 , having a thickness within a range of 10 to 100 μm.6. The filter medium for a liquid filter according to claim 1 , having a porosity within a range of 50 to 90%.7. The filter medium for a liquid filter according to claim 1 , having a tensile strength of 8 N/15 mm or more in the MD direction and 3 N/15 mm or more in the CD direction.8. The filter ...

FIBER PRODUCED BY MEANS OF A MELT SPINNING METHOD

The present invention relates to a fiber which is produced by means of a melt spinning method, including a first component including a melt processable, fully fluorinated first polymer, and a second component including a thermoplastic second polymer. 1. A fiber which is produced by means of a melt spinning method , including a first component including a melt processable , fully fluorinated first polymer , and a second component including a thermoplastic second polymer.2. The fiber according to claim 1 , wherein the first polymer is a copolymer of tetrafluoroethylene and at least one fully fluorinated comonomer claim 1 , wherein the comonomer content amounts to approximately 1 mole % or less.3. The fiber according to claim 2 , wherein the comonomer is selected from hexafluoropropylene claim 2 , perfluoroalkyl vinyl ethers and perfluoro-(2 claim 2 ,2-dimethyl-1 claim 2 ,3-dioxole).4. The fiber according to claim 1 , wherein the first polymer has an amorphous content of at least 50%.5. The fiber according to claim 1 , wherein the second polymer is selected from polyethylene terephthalate claim 1 , polybutylene terephthalate claim 1 , polyamides claim 1 , polyimides claim 1 , polyether ketones claim 1 , polyphenylene sulfide or mixtures thereof.6. The fiber according to claim 1 , wherein the fiber is formed from a compound which includes approximately 20 to approximately 80 weight % of the first polymer and approximately 20 to approximately 80 weight % of the second polymer.7. The fiber according to claim 1 , wherein the first and the second component form regions of the fiber that are spatially separated from one another.8. The fiber according to claim 7 , wherein the first component of the fiber consists substantially entirely of the first polymer claim 7 , or comprises a compound of the first polymer with one or more further polymers and/or one or more fillers.9. The fiber according to claim 7 , wherein the fiber is a multifilament including filaments of the first ...

MEDICAL DEVICE FOR PROTECTION AGAINST HARMFUL GERMS ON SHARED SURFACES

A medical device to protect against harmful germs on shared surfaces by covering the shared surfaces to isolate the germs from individuals contacting the surfaces. The device may be utilized in public places (e.g., food establishments, classrooms, movie theaters) and public transportation (e.g., planes, trains, bus) to cover trays, desks and/or monitors that may be touched by many individuals. The device may be a system that includes one or more covers where the covers may be reusable, disposable or a combination thereof. The covers may be made from a material or combination of materials that provide at least a subset of stretchable, washable, antibacterial, durable, water-proof/water-resistant and non-slip properties. A reusable cover may include a means for securing the cover to the surface (e.g., draw strings, connectors). A disposable cover may be a film that has clinging properties when stretched. 1. A cover to be secured to a surface to isolate germs located on the surface from a user of the surface , the cover comprising:a main body generally shaped same as a shape of the surface, wherein the main body is sized between different sizes associated with standard surfaces, wherein the main body is capable of being stretched along at least one axis thereof so as to cover a variety of different sized surfaces; andmeans for securing the main body to the surface.2. The cover of claim 1 , wherein the main body includes at least one channel formed around a perimeter thereof claim 1 , and the means includes at least on string routed through the at least one channel.3. The cover of claim 2 , wherein the main body is secured around the surface by pulling the string.4. The cover of claim 1 , wherein the main body includes a channel formed around a perimeter thereof claim 1 , wherein the channel includes two openings claim 1 , and the means includes a first string routed between the two openings via a first path and a second string routed between the two openings via a ...

MULTICOMPONENT FILAMENTS AND ARTICLES THEREOF

Aspects of the present disclosure relate to a multicomponent filament and articles thereof. The multicomponent filament comprises at least a first component and a second component. The first component includes a thermoplastic polymer. The second component includes a hydrophilic thermoplastic polymer comprising 65% (w/w) to 90% (w/w) (inclusive) hydrophilic segments. The first component is capable of forming a continuous filament with the second component. 1. A multicomponent filament , comprising:a first component comprising a hydrophobic thermoplastic polymer; anda second component comprising a hydrophilic thermoplastic polymer comprising 65% (w/w) to 90% (w/w), inclusive, hydrophilic segments;wherein the first component is capable of forming a continuous filament with the second component.2. The multicomponent filament of claim 1 , wherein the thermoplastic polymer comprises a thermoplastic olefin having a melt flow index from 10 g/10 min to 100 g/10 min at 190° C. (inclusive).3. The multicomponent filament of claim 2 , wherein the hydrophilic segments comprise a polyalkylene oxide.4. The multicomponent filament of claim 3 , wherein the hydrophilic segments are selected from the group consisting of polyethylene glycol claim 3 , polypropylene glycol claim 3 , polybutylene oxide claim 3 , random poly(C2-C4)alkylene oxide claim 3 , polyester claim 3 , amine-terminated polyester claim 3 , amine-terminated polyamide claim 3 , polyester-amide claim 3 , polycarbonate claim 3 , and combinations thereof.5. The multicomponent filament of claim 2 , wherein the first component is a core and second component is a sheath in a core/sheath multicomponent filament.6. A first yarn comprising the multicomponent filament of .7. An article comprising the first yarn of claim 6 , wherein the article is selected from a group consisting of a knitted article claim 6 , a woven article claim 6 , nonwoven article claim 6 , and combinations thereof.8. The article of claim 7 , further ...

ANTIMICROBIAL FIBERS

The invention provides an antimicrobial fiber which exhibits excellent antimicrobial properties even without the addition of antimicrobial agents and can remain antimicrobial even after repeated washing. The antimicrobial fiber comprises a fiber having on a surface thereof a polyacetal copolymer (X) containing oxyalkylene groups, the molar amount of oxyalkylene groups in the polyacetal copolymer (X) being 0.2 to 5 mol % relative to the total of the molar amount of oxymethylene groups and the molar amount of oxyalkylene groups. 2. The antimicrobial fiber according to claim 1 , wherein the orientation factor of the polyacetal copolymer (X) is not less than 60%.3. The antimicrobial fiber according to claim 1 , wherein the fiber having the polyacetal copolymer (X) on a surface thereof is a monolayer fiber of the polyacetal copolymer (X).4. The antimicrobial fiber according to claim 1 , wherein the fiber having the polyacetal copolymer (X) on a surface thereof is a multilayer fiber having a coating of the polyacetal copolymer (X) on a fiber including a thermoplastic resin.5. The antimicrobial fiber according to claim 1 , wherein the fiber having the polyacetal copolymer (X) on a surface thereof is a conjugate fiber having the polyacetal copolymer (X) on a surface of a fiber including a thermoplastic resin.6. The antimicrobial fiber according to claim 4 , wherein the thermoplastic resin is one or more selected from polyacetal homopolymers claim 4 , polyacetal copolymers other than the polyacetal copolymer (X) claim 4 , polyolefin resins claim 4 , polylactic acid resins claim 4 , nylon resins claim 4 , polyester resins claim 4 , polyvinyl resins and elastomers of these resins.7. A nonwoven fabric comprising the antimicrobial fiber according to .8. A filter comprising the nonwoven fabric according to .9. A knitted fabric comprising the antimicrobial fiber according to .10. A woven fabric comprising the antimicrobial fiber according to .11. A felt comprising the ...

Multicomponent Fiber Containing a Polyarylene Sulfide

A multicomponent fiber that contains two or more components arranged in distinct zones across the cross-section of the multicomponent fiber is provided. The components are arranged in a sheath/core configuration in which the core component is substantially surrounded by the sheath component. One of the sheath and the core is formed from a polyarylene sulfide composition and the other of the sheath and the core is formed from a thermoplastic composition that contains a thermoplastic polymer other than a polyarylene sulfide. Further, the polyarylene sulfide is “functionalized” in that it contains at least one functional group in its molecular structure (e.g., at its molecular terminal end). Without intending to be limited by theory, it is believed that such functional groups can improve the adhesion between the core and sheath components, thereby resulting in a fiber having improved thermal and mechanical properties. 1. A multicomponent fiber that comprises a sheath component that substantially surrounds a core component , wherein one of the core component and the sheath component is formed from a polyarylene sulfide composition that comprises a functionalized polyarylene sulfide , and wherein the other of the sheath component and the core component is formed from a thermoplastic composition that contains a thermoplastic polymer other than a polyarylene sulfide.2. The multicomponent fiber of claim 1 , wherein the core component is formed from the polyarylene sulfide composition and the sheath component is formed from the thermoplastic composition that contains a thermoplastic polymer other than a polyarylene sulfide.3. The multicomponent fiber of claim 1 , wherein the sheath component is formed from the polyarylene sulfide composition and the core component is formed from the thermoplastic composition that contains a thermoplastic polymer other than a polyarylene sulfide.4. The multicomponent fiber of claim 1 , wherein the functionalized polyarylene sulfide is a ...

POLY(GLYCEROL SEBACATE) URETHANE FIBERS, FABRICS FORMED THEREFROM, AND METHODS OF FIBER MANUFACTURE

A manufacturing process includes combining a liquid resin with a liquid reactive cross-linking composition to form a reactive core composition. The manufacturing also includes contacting the reactive core composition with a sheath composition including a carrier polymer in a solvent. The manufacturing process further includes wet spinning the reactive core composition with the sheath composition to form a sheath-core fiber including a core including at least one continuous fiber of a reaction product of the liquid resin and liquid cross-linking composition and a sheath surrounding the core. The cross-linking composition reacts with the resin during the wet spinning. The sheath includes the carrier polymer. A continuous poly(glycerol sebacate) urethane (PGSU) fiber comprising PGSU and a continuous PGSU fiber forming system are also disclosed.

Fibre

A fibre comprising a core, a component, for example a liquid crystal, which is susceptible to a change in properties or structure in response to application of the external stimulus and an outer sheath is provided. The component is electrically conductive or adapted to undergo a structural change in response to the applied stimulus. 1. A fibre comprising a core which is electrically conductive and adapted to selectively receive electric current to heat the core such that the fibre provides a thermochromic effect or undergoes a structural change , the core being sheathed in an outer polymeric layer the fibre further comprising a responsive component interposed between the core and the outer polymeric layer or within the outer polymeric layer which responsive component is susceptible to a change in properties or structure in response to application of the electric current.2. (canceled)3. A fibre according to wherein the responsive component comprises a colour component within the outer polymeric layer and/or disposed in a region between the core and the outer polymeric layer4. A fibre according to wherein the colour component comprises a liquid crystal.5. A fibre according to wherein the colour component comprises a liquid crystal and colour is initiated by application of electric power to the core which thereby heats and provides a selectively applied stimulus to prompt colour-change.6. A fibre according to wherein the liquid crystal comprises an unencapsulated liquid disposed between the core and the outer layer.7. A fibre according to wherein the liquid crystal is encapsulated and dispersed in the outer polymeric layer.8. (canceled)9. A fibre according to wherein the electrically conductive core comprises a metal selected from a steel claim 1 , aluminium or copper wire.10. A fibre according to wherein the electrically conductive core has a pre-selected colour whereby the colour contributes to the visual appearance of the colour-change fibre.11. A fibre according to ...

MECHANO-LUMINESCENT-OPTOELECTRONIC SMART CLOTHING

Disclosed herein are self-powered and multi-modal sensing wearables. The smart wearables can comprise mechano-luminescence-optoelectronic materials, which can be used for self-powered sensing and energy harvesting. 1. A structure comprising:a) a filamentous core, wherein the filamentous core comprises an elastomeric material; andb) a coating surrounding the filamentous core, wherein the coating comprises a mechano-optoelectronic material,wherein the structure is a thread.2. The structure of claim 1 , wherein the thread has a mean diameter of less than about 2 mm.3. The structure of claim 1 , wherein the thread has a mean diameter of less than about 1 mm.4. The structure of claim 1 , wherein the thread has a mean diameter of less than about 0.5 mm.5. The structure of claim 1 , wherein the elastomeric material is an elastomeric composite.6. The structure of claim 1 , wherein the elastomeric material is a copper-doped zinc sulfide (ZnS:Cu)-based elastomeric composite.7. The structure of claim 6 , wherein the ZnS:Cu-based elastomeric composite is a ZnS:Cu/polydimethylsiloxane composite.8. The structure of claim 7 , wherein the ZnS:Cu/polydimethylsiloxane composite contains from about 5% to about 70% ZnS:Cu by mass.9. The structure of claim 1 , wherein the mechano-optoelectronic material is a mechano-luminescent-optoelectronic composite.10. The structure of claim 1 , wherein the mechano-optoelectronic material is a film.11. The structure of claim 1 , wherein the mechano-optoelectronic material is a poly(3-hexylthiophene) film.12. The structure of claim 11 , wherein the poly(3-hexylthiophene) film is a poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester film.13. The structure of claim 12 , wherein the poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester film comprises a 1:1 mass ratio of poly(3-hexylthiophene) to phenyl-C61-butyric acid methyl ester.14. The structure of claim 11 , wherein the poly(3-hexylthiophene) film is doped with carbon nanotubes.15. ...

CONDUCTIVE FIBER COMPRISING METAL NANOBELT AND CARBON NANOMATERIAL COMPOSITE, METHOD FOR PRODUCING CONDUCTIVE FIBER, FIBROUS STRAIN SENSOR, AND METHOD FOR PRODUCING FIBROUS STRAIN SENSOR

A conductive fiber including a metal-nanobelt-carbon-nanomaterial composite. A manufacturing method thereof includes preparing a composite including a carbon nanomaterial and metal nanobelts and manufacturing a conductive fiber by mixing the composite with a polymer. A fibrous strain sensor and a manufacturing method thereof are also provided. Thereby, a conductive fiber including a metal-nanobelt-carbon-nanomaterial composite, which is able to increase conductivity of the conductive fiber through synthesis of metal nanobelts enabling area contact and to exhibit good contact between the carbon nanomaterial and the metal nanobelts due to formation of the metal nanobelts on the surface of the carbon nanomaterial and superior dispersion uniformity, and a fibrous strain sensor including the conductive fiber can be obtained. The conductive fiber can be effectively applied to a strain sensor based on a principle by which resistance drastically increases with an increase in a distance between metal nanobelts aligned in a fiber direction upon tensile strain of metal nanobelts enabling area contact. 1. A method of manufacturing a conductive fiber comprising a metal-nanobelt-carbon-nanomaterial composite , the method comprising:preparing a composite comprising a carbon nanomaterial and metal nanobelts; andmanufacturing a conductive fiber by mixing the composite with a polymer.2. The method of claim 1 , wherein the metal nanobelts have a ribbon shape so as to enable area contact.3. The method of claim 1 , wherein the preparing the composite comprises:subjecting a conductive carbon nanomaterial to surface modification in order to introduce the carbon nanomaterial with a functional group;forming a carbon nanomaterial dispersion solution reactive with a metal ion by mixing and reacting the surface-modified carbon nanomaterial with an isocyanate-based compound and a pyrimidine-based compound; andforming the metal nanobelts on a surface of the carbon nanomaterial by adding a metal ...

COAXIAL CELLULOSE-BASED AEROGEL FIBERS

The present disclosure provides a coaxial fiber comprising a cellulose fiber exterior, and a hollow interior, wherein the aerogel occupies the hollow interior of the cellulose fiber. The present disclosure also provides a method of making the coaxial fiber, and a method of maintain a temperature differential in two zones using the coaxial fibers described herein. 1. A coaxial fiber comprising:a cellulose fiber comprising an exterior and a hollow interior; andan aerogel occupying the hollow interior of the cellulose fiber.2. The coaxial fiber of claim 1 , wherein the cellulose fiber further comprises polyacrylic acid.3. The coaxial fiber of claim 2 , wherein the cellulose fiber comprises a ratio of about 90:10 to 99:1 of cellulose to polyacrylic acid.4. The coaxial fiber of claim 2 , wherein the cellulose fiber comprises a ratio of about 92:8 of cellulose to polyacrylic acid.5. The coaxial fiber of claim 1 , wherein the cellulose fiber exterior surrounding the aerogel comprises pores.6. The coaxial fiber of claim 5 , wherein the pores have a size of about 20 nm to about 40 μm.7. The coaxial fiber of claim 1 , wherein the aerogel comprises a cellulose nanofibril (CNF) aerogel.8. The coaxial fiber of claim 1 , wherein the coaxial fiber has an outer diameter of about 500 μm to about 1500 μm.9. The coaxial fiber of claim 1 , wherein the coaxial fiber has a porosity of at least about 85%.10. The coaxial fiber of claim 1 , wherein the coaxial fiber has a density of about 0.2 g/cm.11. The coaxial fiber of claim 1 , wherein the coaxial fiber has a specific tensile strength of about 20 MPa·g/cmto about 30 MPa·g/cm.12. The coaxial fiber of claim 1 , wherein:the cellulose fiber comprises pores having a size of about 20 nm to about 40 μm;the aerogel comprises a cellulose nanofibril (CNF) aerogel; and{'sup': 3', '3', '3, 'the coaxial fiber has an outer diameter of about 500 μm to about 1500 μm, porosity of about 85%, a density of about 0.2 g/cm, and a specific tensile strength of ...

Porous Polyolefin Fibers

A polyolefin fiber that is formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

MULTICOMPONENT LATENT-CRIMPING STAPLE FIBER AND METHOD THEREFOR

A multicomponent latent-crimping staple fiber, or a non-mechanically-crimped staple fiber contains a first component and a second component which each have their own differing lengths and a shrinkage differential therebetween and eccentric cross-sectional centers of mass. The staple fibers herein have a tenacity after crimping of at least 90% as compared to the tenacity prior to crimping. Processes for making such a fiber are also described. 1. A multicomponent latent-crimping staple fiber comprising: i. a first length; and', 'ii. a first cross-sectional center of mass; and, 'A. a first component comprising i. a second length; and', 'ii. a second cross-sectional center of mass,, 'B. a second component comprisingwherein the shrinkage differential between the first length and the second length is at least 0.01%, and wherein the first cross-sectional center of mass and the second cross-sectional center of mass are eccentric, wherein the first component and the second component are extruded and combined to form a multicomponent latent-crimping fiber, wherein the multicomponent latent-crimping fiber is cut to form a multicomponent latent-crimping staple fiber, wherein the multicomponent latent-crimping staple fiber is crimped either before, during, or after cutting, and wherein the multicomponent latent-crimping staple fiber has a tenacity of at least about 90% as compared to the tenacity of the multicomponent latent-crimping fiber prior to crimping.2. The multicomponent latent-crimping staple fiber according to claim 1 , wherein the first component comprises a polymer selected from the group consisting of a polyamide claim 1 , a sulfur-containing polymer claim 1 , an aromatic polyester claim 1 , an aliphatic polyester claim 1 , a polyolefin claim 1 , and a combination thereof.3. The multicomponent latent-crimping staple fiber according to claim 1 , wherein the second component comprises a polymer selected from the group consisting of a polyamide claim 1 , a sulfur- ...

THERMO-REGULATED FIBER AND PREPARATION METHOD THEREOF

The present invention provides a thermo-regulated fiber and a preparation method thereof by using a new polymeric phase-change material and adopting a new fiber preparation method, and the resulting thermo-regulated fiber has good thermo-regulating properties and a good thermal stability. The thermo-regulated fiber has a composite structure, and the cross-sectional structure is an sea-island type or a concentric sheath/core type, characterised in that the polymeric phase-change material is a polyethylene glycol n-alkyl ether (structural formula: H(OCHCH)OCH), where the repeating unit number m of the ethylene glycol is 1 to 100, the number n of carbon atoms in the n-alkyl is 11 to 30. The present invention further relates to a preparation method of a thermo-regulated fiber which includes one of the following processes: (1) A melt composite spinning process; (2) Solution composite spinning process; (3) Electrostatic solution composite spinning process. Further, the present invention is characterised as follows: (1) a new polymeric phase-change material polyethylene glycol n-alkyl ether is used; (2) Component A of the thermo-regulated fiber may form a continuous crystallization region; (3) The thermo-regulated fiber can be prepared in various forms by many preparation methods such as melt composite spinning, solution composite spinning and solution static composite spinning. 1. A thermo-regulated fiber , comprising a polymeric phase-change material as an ingredient A and a fiber-forming polymer as an ingredient B , wherein the mass fraction of the ingredient A in the fiber is 20% to 60% , the mass fraction of the ingredient B in the fiber is 80% to 40% , and the fiber is prepared by a melt composite spinning , solution composite spinning or solution static composite spinning process , the thermo-regulated fiber has a composite structure , the cross-sectional structure is a sea-island type or a concentric sheath/core type , characterized in that the polymeric phase- ...

HYDROPHOBIC NANO-SILICA MIXED THERMOPLASTIC POLYURETHANE COATED YARN

A thermoplastic polyurethane coated yarn having excellent adhesive strength in which hydrophobic nano-silica is mixed. The nano-silica is contained in the range of 0.2˜5 Parts per Hundred Resin (phr) and the nano-silica having a primary particle size of in a range of 1˜100 nm. The thermoplastic polyurethane coating yarn mixed with the hydrophobic nano-silica of the present invention is uniformly coated with a thermoplastic polyurethane resin containing nano-silica containing a hydrophobic functional group on the surface of the core yarn, whereby the core yarn is biased to one side. Since no coating or uncoating occurs, the product quality and productivity are excellent, in addition to excellent durability and wear resistance of the thermoplastic polyurethane, mechanical strength and chemical resistance are improved. 1. A thermoplastic polyurethane coated yarn with hydrophobic nano-silica , which is coated a thermoplastic polyurethane resin on a surface thereof , the coated yarn comprising:the core yarn having the surface,wherein the thermoplastic polyurethane (TPU) resin contains a nano-silica in a range of 0.2˜5 Parts per Hundred Resin (phr), which includes a hydrophobic functional group is introduced on the surface thereof,wherein the nano-silica has a primary particle size in a range of 1˜100 nm.2. The TPU coated yarn with hydrophobic nano-silica of claim 1 ,wherein the hydrophobic functional group contained on the surface of the nanosilica particles is any one or more selected from alkyl group, dimethyl group, trimethyl group, dimethyl siloxane group, and methacryl group.3. The TPU coated yarn with hydrophobic nano-silica of claim 1 ,wherein the nano-silica forms a nano-silica aggregate having an aggregate an average size in a range of 100˜1200 nm.4. The TPU coated yarn with hydrophobic nano-silica of claim 1 ,wherein the core yarn is any one selected from polyester, nylon, acrylic, polyurethane, polyolefin, carbon fiber, glass fiber, and metal fiber.5. The TPU ...

FIBERS MADE FROM SOLUBLE POLYMERS

A fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition. 1. A fine fiber comprising a nonreactive polymer and a self-crosslinked resinous aldehyde composition within the fiber.2. The fine fiber of wherein the nonreactive polymer and self-crosslinked resinous aldehyde composition forms a uniform mixture in a semi-interpenetrating network morphology.3. (canceled)4. (canceled)5. The fine fiber of comprising three phases claim 3 , wherein the core phase comprises the polymer claim 3 , the coating phase comprises the resinous aldehyde composition claim 3 , and a transition phase comprises a mixture of the polymer and the resinous aldehyde composition.6. The fine fiber of which is prepared from a resinous aldehyde composition comprising reactive alkoxy groups and a nonreactive polymer.7. The fine fiber of wherein the resinous aldehyde composition is present in an amount of greater than 20 parts by weight per 100 parts by weight of the polymer.8. The fine fiber of which is a fine fiber having an average diameter of no greater than 5 microns.9. The fine fiber of wherein the resinous aldehyde composition comprises a resinous formaldehyde composition.10. The fine fiber of wherein the resinous formaldehyde composition comprises a resinous melamine-formaldehyde composition.11. The fine fiber of wherein the resinous aldehyde composition comprises a melamine-aldehyde composition; and wherein the aldehyde comprises formaldehyde claim 1 , acetaldehyde claim 1 , butyraldehyde claim 1 , isobutyraldehyde claim 1 , or mixtures thereof.12. The fine fiber of wherein the resinous aldehyde composition comprises a condensation product of urea and an aldehyde claim 1 , a ...

Halogen-Free Flame Retardant TPU Composition for Wire and Cable

The present disclosure provides a wire or cable comprising a flame retardant-free thermoplastic inner sheath and an outer sheath composition comprising, based on the weight of the composition, (a) 10 wt % to 90 wt % of a TPU based resin, (b) 5 wt % to 90 wt % of a metal hydrate, (c) 2 wt % to 50 wt % of a nitrogen-based phosphorus flame retardant, and (d) 2 wt % to 50 wt % liquid phosphate modifier, wherein the outer sheath is in contact with the insulation covering, and wherein the outer sheath has a thickness from greater than zero to 0.8 mm. 1. A cable comprising:a flame retardant-free thermoplastic inner sheath; and (a) 10 wt % to 90 wt % of a TPU based resin,', '(b) 5 wt % to 90 wt % of a metal hydrate,', '(c) 2 wt % to 50 wt % of a nitrogen-based phosphorus flame retardant, and', '(d) 2 wt % to 20 wt % of a liquid phosphate modifier,, 'an outer sheath composition comprising, based on the total weight of the composition,'}wherein the outer sheath is in contact with the inner sheath,wherein the outer sheath has a thickness greater than zero to 0.8 mm.2. The wire or cable of wherein the outer sheath comprises(a) 30 wt % to 50 wt % of a TPU based resin,(b) 20 wt % to 40 wt % of a metal hydrate,(c) 5 wt % to 20 wt % of a nitrogen-based phosphorus flame retardant, and(d) 3 wt % to 10 wt % of a liquid phosphate modifier.3. The wire or cable of wherein the metal hydrate is aluminum trihydrate.4. The wire or cable of wherein the nitrogen-based phosphorus flame retardant is selected from the group consisting of ammonium polyphosphate (APP) claim 1 , melamine polyphosphate (MPP) claim 1 , and piperazine pyrophosphate.5. The wire or cable of wherein the liquid phosphate modifier is selected from the group consisting of resorcinol diphenol phosphate (RDP) claim 1 , bisphenol A diphosphate (BDP) claim 1 , triphenol phosphate (TPP) claim 1 , tributoxyethyl phosphate (TBEP) claim 1 , and resorcinol bis(xylenol phosphate) (XDP).6. The wire or cable of wherein the outer sheath ...

FINE FIBERS MADE FROM POLYMER CROSSLINKED WITH RESINOUS ALDEHYDE COMPOSITION

A fine fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde (e.g., melamine-aldehyde) composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition. 130.-. (canceled)31. A filter media comprising a filtration substrate and a layer comprising a plurality of fine fibers , the fine fibers comprising a core phase and a coating phase; wherein the core phase comprises a polymer and the coating phase comprises a resinous aldehyde composition; wherein at least a portion of the polymer is crosslinked by the resinous aldehyde composition; and further wherein the fine fiber does not include polyvinyl alcohol crosslinked with melamine-formaldehyde.32. The filter media of wherein the fine fibers are prepared from a resinous aldehyde composition comprising reactive alkoxy groups and a polymer comprising active hydrogen groups claim 31 , wherein the molar ratio of resinous aldehyde composition to polymer is such that the molar ratio of reactive alkoxy groups to active hydrogen groups is greater than 10:100.33. The filter media of wherein the active hydrogen groups comprise amido or amino groups.34. The filter media of wherein the fine fibers are prepared from the resinous aldehyde composition and the polymer in amounts such that the resinous aldehyde composition is present in an amount of greater than 20 parts by weight per 100 parts by weight of the polymer.35. The filter media of wherein the core phase comprises a mixture of the polymer and the resinous aldehyde composition.36. The filter media of wherein the fine fibers comprise three phases claim 31 , wherein the core phase comprises the polymer claim 31 , the coating phase comprises the resinous aldehyde composition claim 31 , and a transition phase comprises a mixture of ...

Fine fibers made from room temperature crosslinking

The present disclosure provides a unique method of making a fine fiber that is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. The present disclosure also provides a unique method of coating a fine fiber with a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. The present disclosure further provides fine fibers wherein the entirety of the fiber is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. Also provided are filter media and ter substrates including the fine fibers.

POLY(PHENYLENE ETHER) FIBER, METHOD OF FORMING, AND ARTICLES THEREFROM

Small diameter poly(phenylene ether) fibers can be consistently formed from a composition comprising specific amounts of a poly(phenylene ether), a processing aid, and optionally a poly(alkenyl aromatic). The processing aid can be LLDPE, a petroleum resin, or combinations thereof. The processing aid can optionally further comprise a phosphite or phosphonate. Flame retardants are minimized or excluded from the composition. The fibers can be melt spun without entanglement or breakage, and this improved processability enables small diameter fibers to be formed. The resulting fibers can be used in reinforcing structures for printed circuit boards. 1. A fiber comprising a composition comprising:50 to 99.9 weight percent of a poly(phenylene ether);0.1 to 10 weight percent of a processing aid comprising linear low density polyethylene, a petroleum resin, or combinations thereof; and0 to 0.5 weight percent of a flame retardant;wherein all weight percents are based on the total weight of the composition.2. The fiber of claim 1 , wherein the composition comprises 90 to 99.9 weight percent of the poly(phenylene ether); and wherein poly(alkenyl aromatic) is excluded from the composition.3. The fiber of claim 1 , wherein the composition comprises 50 to 98.9 weight percent of the poly(phenylene ether); and further comprises 1 to 49.9 weight percent of a poly(alkenyl aromatic).4. The fiber of claim 1 , wherein the processing aid comprises linear low density polyethylene claim 1 , a partially or fully hydrogenated aliphatic petroleum resin derived from ethylenically unsaturated C5 monomers claim 1 , ethylenically unsaturated C9 monomers claim 1 , ethylenically unsaturated C5/C9 monomers claim 1 , or combinations thereof.5. The fiber of claim 1 , wherein the processing aid comprises linear low density polyethylene having a melt volume rate of 10 to 40 grams per 10 minutes claim 1 , measured in accordance with ASTM D1238-10 at 190° C. and a 2.16 kilogram load.6. The fiber of claim 1 ...

ENERGY ABSORBING MATERIAL

A composition comprising a liquid-castable polymer system combined with solid particles of a shear thickening additive; an energy absorbing material formed from the composition; and an article comprising the energy absorbing material on a substrate, for example, a glove () including the material of the present disclosure as energy absorbing elements () incorporated onto the surface () of a textile substrate to provide protection over the metacarpophalangeal and proximal interphalangeal joints. 1. A composition for use in forming an energy absorbing material , the composition comprising:a liquid-castable polymer system, which is configured to solidify to form a material comprising an elastomeric polymer matrix, the material comprising the elastomeric polymer matrix having a Shore D hardness in a range of 30 to 60; anda shear thickening additive, the shear thickening additive comprising particles having a D10 of at least 0.05 mm and a D90 of 2 mm or less and a Shore D hardness of at least 30.2. The composition of claim 1 , wherein the shear thickening additive is a blend comprising a thermoplastic elastomer and a silicone polymer.3. The composition of claim 1 , wherein the composition is:a liquid at 25° C., andis configured to solidify to form a solid material on curing.4. The composition of claim 1 , wherein the liquid-castable polymer system comprises a polyol and an isocyanate.5. The composition of claim 1 , wherein the composition comprises a polymerization initiator that initiates curing of the liquid-castable polymer system on exposure to heat or radiation.6. An energy absorbing material comprising: a solid elastomeric polymer and a shear thickening additive claim 1 , wherein the shear thickening additive is in a form of solid particles having a D10 of at least 0.05 mm and a D90 of 2 mm or less claim 1 , wherein the material has a Shore D hardness of 30 to 60.7. The energy absorbing material of claim 6 , wherein the shear thickening additive is a blend ...

Method for preparing conjugated polymer film, light-emitting diode, display device and solar cell

The present disclosure relates to a method for preparing a conjugated polymer film, as well as a light-emitting diode, a display device, and a solar energy battery including the conjugated polymer film. A method for preparing a conjugated polymer film according to the present disclosure includes: preparing a fibrous conjugated polymer; and preparing a conjugated polymer film from the fibrous conjugated polymer. Since the fibrous conjugated polymer has a certain length and orientation, it has improved electron mobility in the dimensional direction thereof, and is capable of improving the carrier mobility of the conjugated polymer film.

RADIO OPAQUE FIBERS, FILAMENTS, AND TEXTILES

A radio opaque fiber, filament, and yarn is disclosed herein. The radio opaque fiber, filament, or yarn comprises a matrix () comprising a plurality of radio opaque material () and a first polymer (), where the radio opaque material () is at least one of a radio opaque element, an alloy of the radio opaque element, and a compound of the radio opaque element, or a combination thereof, wherein the radio opaque element if of an atomic number greater than or equal to 29, and wherein the matrix () forms a unified flexible structure. The radio opaque fiber, filament, or yarn further comprises a carrier polymer () which binds the plurality of the matrix () and imparts spinnability to form the fiber, filament, and yarn. 1100. A radio opaque filament () comprising:{'b': 102', '104', '106', '104', '102, 'a matrix () comprising a plurality of radio opaque material () and a first polymer (), wherein the radio opaque material () is at least one of a radio opaque element, an alloy of the radio opaque element and a compound of the radio opaque element, or a combination thereof, wherein the radio opaque element is of an atomic number greater than or equal to 29, and wherein the matrix () forms a unified flexible structure; and'}{'b': 108', '108', '102', '108', '102', '102, 'a carrier polymer (), wherein the carrier polymer () binds to impart spinnability to a plurality of matrix (), wherein the carrier polymer () binds the plurality of the matrix () and is co-extruded with the matrix ().'}2100104100. The radio opaque filament () as claimed in claim 1 , wherein the percentage weight ratio of the radio opaque material () is in the range 30% to 80% by weight of the total filament ().3100106108. The radio opaque filament () as claimed in claim 1 , wherein each of the first polymer () and the carrier polymer () is at least one regenerated polymer or synthetic Polymers which is one of polyester claim 1 , acrylic claim 1 , poly amide claim 1 , polyurethane claim 1 , regenerated cellulose ...

Hollow Porous Fibers

A hollow fiber that generally extends in a longitudinal direction is provided. The hollow fiber comprises a hollow cavity that extends along at least a portion of the fiber in the longitudinal direction. The cavity is defined by an interior wall that is formed from a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and a nanoinclusion additive dispersed within the continuous phase in the form of discrete domains. A porous network is defined in the composition that includes a plurality of nanopores. 1. A hollow fiber that generally extends in a longitudinal direction , the hollow fiber comprising a hollow cavity that extends along at least a portion of the fiber in the longitudinal direction , wherein the cavity is defined by an interior wall that is formed from a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and a nanoinclusion additive dispersed within the continuous phase in the form of discrete domains ,wherein the interior wall has an average wall thickness of from about 0.5 to about 500 micrometers,wherein a porous network is defined in the composition that includes a plurality of nanopores.2. The hollow fiber of claim 1 , wherein the interior wall has an average wall thickness of from about 1 to about 30 micrometers.3. The hollow fiber of claim 1 , wherein the interior wall has an inner diameter greater than the thickness of the interior wall.4. The hollow fiber of claim 3 , wherein the average inner diameter of the interior wall is from about 1 to about 100 micrometers.5. The hollow fiber of claim 1 , wherein the interior wall has an average outer diameter of from about 2 to about 200 micrometers.6. The hollow fiber of claim 1 , wherein the nanopores have an average cross-sectional dimension of about 800 nanometers or less.7. The hollow fiber of claim 1 , wherein the polyolefin matrix polymer has a melt flow rate of from about 0.5 to about 80 grams per 10 ...

CLOTH HAVING EXCELLENT CONTACT COLD SENSATION AND COLORFASTNESS

A cloth containing a fiber having on a surface a polyacetal copolymer containing a prescribed amount of oxyalkylene unit(s), wherein the cloth exhibits a qvalue of at least 0.2 W/cm, when the cloth is brought into contact with a heat storing plate of 40° C. under a contact pressure of 0.098 N/cmin an environment at a temperature of 20° C. and at a relative humidity of 65%, is superior in contact cold sensation, colorfastness, quick drying property and gloss. 2. The cloth according to claim 1 , wherein the polyacetal copolymer (X) has a degree of orientation of molecular chains of 75 to 95%.3. The cloth according to or claim 1 , wherein the fiber having on a surface a polyacetal copolymer (X) is a single-layer fiber of the polyacetal copolymer (X).4. The cloth according to claim 1 , wherein the fiber having on a surface a polyacetal copolymer (X) is a multilayer fiber claim 1 , in which a fiber comprising a thermoplastic resin is coated with the polyacetal copolymer (X).5. The cloth according to claim 1 , wherein the fiber having on a surface a polyacetal copolymer (X) is a composite fiber having the polyacetal copolymer (X) on a surface of a fiber comprising a thermoplastic resin.6. The cloth according to claim 4 , wherein the thermoplastic resin is at least one member selected from a polyacetal homopolymer claim 4 , a polyacetal copolymer other than the polyacetal copolymer (X) claim 4 , a polyolefin resin claim 4 , a polylactic acid resin claim 4 , a nylon resin claim 4 , a polyester resin claim 4 , a polyvinyl resin claim 4 , and an elastomer thereof.7. A clothing article from the cloth according to .8. A bedding article from the cloth according to .9. An interior article from the cloth according to .10. An interior automotive trim from the cloth according to . The present invention relates to a cloth having excellent contact cold sensation and excellent colorfastness, which is formed from a fiber having a polyacetal copolymer on the surface, and a clothing ...

Resin composition, as well as carbon fiber-reinforced composite material precursor, carbon fiber-reinforced material, and carbon fiber-reinforced carbon material obtained using said resin composition

Provided are: a resin composition which can give a carbon-fiber-reinforced composite material having not only high degrees of flame retardancy and thermal resistance, owing to properties of phenolic resins, but also excellent mechanical properties; a precursor of the carbon-fiber-reinforced composite material obtained by using the resin composition; a carbon-fiber-reinforced composite material formed from the precursor; and a carbon-fiber-reinforced carbon material. The resin composition contains, as essential components, a resol-type phenolic resin, a novolac-type phenolic resin, and at least one alcohol selected from a group consisting of methanol, ethanol and n-propylalcohol.

Core-shell filament, method of forming a core-shell filament, method of forming an article by fused filament fabrication, and article formed filament fabrication

A core-shell filament useful for fused filament fabrication includes a core, and a shell surrounding and in contact with the core. The core contains a block polyetherimide-polysiloxane. The shell contains a polyetherimide. When the filament is used in fused filament fabrication for printing a three-dimensional article, the core material remains surrounded by shell material. So, the printed article exhibits good interlayer adhesion provided by the shell material, and good ductility provided by the core material.

BICOMPONENT SPANDEX

An elastic multiple component fiber comprising a cross-section, wherein at least a first region of said cross-section comprises a polyurethaneurea composition; and comprising a second region. 1. An elastic multiple component fiber comprising a cross-section , wherein at least a first region of said cross-section comprises a polyurethaneurea composition; and comprising a second region.2. The fiber of wherein the multiple components of the fiber are extruded through the same capillary into a single filament.3. The fiber of wherein the multiple components of the fiber are extruded through separate capillaries into separate filaments and coalesced into a single fused fiber.4. The fiber of claim 1 , wherein said first region and said second region have well-defined boundaries.5. The fiber of claim 1 , further comprising a third region comprising a boundary region between said first region and said second region that includes a blend of said first region and said second region.6. The fiber of claim 1 , wherein said fiber is solution-spun.7. The fiber of claim 1 , wherein said cross-section includes a configuration selected from the group consisting of concentric sheath-core claim 1 , eccentric sheath-core claim 1 , side-by-side claim 1 , and fused strands.8. The fiber of wherein said cross-section is non-round.9. The fiber of claim 1 , wherein said second region comprises a polyurethaneurea composition.10. The fiber of claim 1 , wherein said second region comprises a non-polyurethaneurea composition.11. The fiber of claim 10 , wherein said non-polyurethaneurea is prepared from one of a thermoplastic polymer and a soluble polymer.12. The fiber of claim 1 , wherein said first region and said second region include at least one different additive or the same additive at different concentrations.13. The fiber of claim 1 , wherein said first region and said second region each include a compositionally different polyurethaneurea.14. The fiber of claim 1 , wherein said first ...

3d printing heat resistant support material

A filament for use in forming a support structure in fused filament fabrication, the filament comprising an amorphous, thermoplastic resin further comprising Bisphenol Isophorone carbonate units and Bisphenol A carbonate units, wherein the Bisphenol Isophorone carbonate units are 30 to 50 mole percent of the total of Bisphenol A carbonate units and Bisphenol Isophorone carbonate units in the resin, and wherein the resin has a glass transition temperature from 165° C. to 200° C. The composition used to form the support filament exhibits a desirable combination of filament formability, printability, lack of significant oozing from the printer nozzle, and good ease of mechanical separation from the build material at room temperature after printing.

THERMOPLASTIC POLYURETHANE COMPOSITION AND USE THEREOF

The present invention relates to a thermoplastic polyurethane composition and use thereof. The thermoplastic polyurethane composition comprises a polyurethane prepared from a polyester polyol and a polyisocyanate as well as an antioxidant. The thermoplastic polyurethane composition of the present invention can be used with other thermoplastic polymers in melt spinning process to prepare bicomponent fibers. 1. A thermoplastic polyurethane composition comprising a polyurethane prepared from a polyester polyol and a polyisocyanate as well as an antioxidant.2. The thermoplastic polyurethane composition according to claim 1 , further comprising a silicone-based lubricant.3. The thermoplastic polyurethane composition according to claim 1 , wherein the polyester polyol comprises a polycyclolactone diol and/or a polyester diol.4. The thermoplastic polyurethane composition according to claim 1 , wherein the polyisocyanate comprises -vinyl diisocyanate claim 1 , 1 claim 1 ,4-tetramethylene diisocyanate claim 1 , hexamethylene diisocyanate claim 1 , 1 claim 1 ,2-dodecane diisocyanate claim 1 , cyclobutane-1 claim 1 ,3-diisocyanate claim 1 , cyclohexane-1 claim 1 ,3-diisocyanate claim 1 , cyclohexane-1 claim 1 ,4-diisocyanate claim 1 , 1-isocyanate-3 claim 1 ,3 claim 1 ,5-trimethyl-5-isocyanate methylcyclohexane claim 1 , hexahydrotoluene-2 claim 1 ,4-diisocyanate claim 1 , hexahydrophenyl-1 claim 1 ,3-diisocyanate claim 1 , hexahydrophenyl-1 claim 1 ,4-diisocyanate claim 1 , perhydrogenated diphenylmethane-2 claim 1 ,4-diisocyanate claim 1 , perhydrogenated diphenylmethane-4 claim 1 ,4-diisocyanate claim 1 , phenylene-1 claim 1 ,3-diisocyanate claim 1 , phenylene-1 claim 1 ,4-diisocyanate claim 1 , toluylene-1 claim 1 ,4-diisocyanate claim 1 , 3 claim 1 ,3-dimethyl-4 claim 1 ,4-diphenyl diisocyanate claim 1 , tolylene-2 claim 1 ,4-diisocyanate claim 1 , tolylene-2 claim 1 ,6-diisocyanate claim 1 , diphenylmethane-2 claim 1 ,4′-diisocyanate claim 1 , diphenylmethane-2 claim 1 , ...

FILAMENTS BASED ON A COATED CORE MATERIAL

The invention relates to a filament comprising a core material (CM) comprising an inorganic powder (IP) and the core material (CM) is coated with a layer of shell material (SM) comprising a thermoplastic polymer. Further, the invention relates to a process for the preparation of said filament, as well as to three-dimensional objects and a process for the preparation thereof. 114.-. (canceled)15. A filament comprising a core material (CM) coated with a layer of shell material (SM) , whereinthe core material (CM) comprises the components a) to c)a) 30 to 80% by volume, based on the total volume of the core material (CM) of at least one inorganic powder (IP),b) 20 to 70% by volume, based on the total volume of the core material (CM) of at least one binder (B) comprising component b1)b1) at least one polymer (P)c) 0 to 20% by volume, based on the total volume of the core material (CM) of at least one additive (A),wherein the at least one polymer (P) is a polyoxymethylene (POM) homopolymer, a polyoxymethylene (POM) copolymer or polyoxymethylene (POM) terpolymer and wherein at least some of the OH-end groups of the polyoxymethylene (POM) homopolymer are capped,and the shell material (SM) comprises the components d) to f)d) 75 to 100% by volume, based on the total volume of the shell material (SM) of at least one thermoplastic polymer (TP)e) 0 to 20% by volume, based on the total volume of the shell material (SM) of the at least one inorganic powder (IP),f) 0 to 25% by volume, based on the total weight of the shell material (SM) of the at least one additive (A), wherein the thickness of the layer of shell material is 0.05 to 0.5 mm.16. The filament according to claim 15 , wherein the binder (B))i) comprises from 50 to 96% by weight or the at least one polymer (P), based on the total weight of the binder.17. The filament according to claim 15 , wherein the binder (B) in the core material (CM) further comprises components b2) or b3)b2) at least one polyolefin (PO),b3) at ...

CONDUCTIVE ELASTIC FIBER AND METHOD FOR FABRICATING THE SAME

A conductive elastic fiber and a method for fabricating the conductive elastic fiber are provided. The method for fabricating the conductive elastic fiber includes following steps. A first solution is provided, where the first solution includes an elastic polymer dissolved in a first solvent, wherein the weight ratio of the elastic polymer to the first solvent is from 5:95 to 20:80. A second solution is provided, where the second solution includes a conductive material dispersed in a second solvent, wherein the weight ratio of the conductive material to the second solvent is from 5:95 to 20:80. Next, a wet spinning process employing the first solution and the second solution is performed to obtain the conductive elastic fiber. 1. A method for fabricating the conductive elastic fiber , comprising:providing a first solution, wherein the first solution comprises an elastic polymer dissolved in a first solvent, wherein the weight ratio of the elastic polymer to the first solvent is from 5:95 to 20:80;providing a second solution, wherein the second solution comprises a conductive material dispersed in a second solvent, wherein the conductive material to the second solvent is from 5:95 to 20:80; andsubjecting the first solution and the second solution to a wet spinning process, obtaining the conductive elastic fiber.2. The method as claimed in claim 1 , wherein the elastic polymer is polyurethane claim 1 , polyester claim 1 , styrene-butadiene-styrene resin (SBS) claim 1 , nitrile butadiene rubber (NBR) or a combination thereof.3. The method as claimed in claim 1 , wherein the conductive material is conductive powder claim 1 , rod-like conductive material claim 1 , or conductive wire.4. The method as claimed in claim 1 , wherein the conductive material is a metal or an alloy of the metal claim 1 , wherein the metal is gold claim 1 , silver claim 1 , copper claim 1 , aluminum claim 1 , or nickel.5. The method as claimed in claim 1 , wherein the conductive material is ...

Bicomponent conjugate fibers, complex yarns and fabrics having high crimping property

The present invention relates to bicomponent conjugate fibers having excellent crimping property, comprising: (A) a thermoplastic polyester elastomer (TPEE) as a first component, and (B) a polyester polymer as a second component. The present invention also relates to yarns and fabrics comprising said bicomponent conjugate fibers.

Acid Resistant Fibers.of Polyarylene and Polymethylpentene

A multicomponent fiber having an exposed outer surface with the fiber having at least a first component of polyarylene sulfide polymer; and at least a second component of a thermoplastic polymer free of polyarylene sulfide polymer, wherein said thermoplastic polymer forms the entire exposed surface of the multicomponent fiber and is polymethylpentene. 1. A multicomponent fiber having an exposed outer surface , said fiber comprising: at least a first component of polyarylene sulfide polymer; and at least a second component of a thermoplastic polymer free of polyarylene sulfide polymer , wherein said thermoplastic polymer forms the entire exposed surface of the multicomponent fiber and consists essentially of polymethylpentene.2. The fiber of claim 1 , wherein said polyarylene sulfide polymer comprises a polymer in which at least 85 mol % of the sulfide linkages are attached directly to two aromatic rings.3. The fiber of claim 2 , wherein said polyarylene sulfide polymer is polyphenylene sulfide.4. The fiber of claim 1 , wherein said second component is present at a 10 to 30% by weight of the total polyarylene sulfide plus thermoplastic polymer.5. The fiber of claim 1 , wherein the second component comprises less than about 30 percent by weight of the total weight of the fiber.6. The fiber of claim 5 , wherein the second component comprises less than about 20 percent by weight of the total weight of the fiber.7. The fiber of claim 1 , wherein said fiber has a circular cross section.8. The fiber of claim 1 , wherein said fiber has a multi-lobal cross section.9. The fiber of claim 1 , wherein said fiber is a continuous filament.10. The fiber of claim 1 , wherein said fiber is a staple fiber.11. The fiber of claim 1 , wherein said fiber is a spunbond fiber.12. The fiber of claim 1 , wherein said fiber is a meltblown fiber.13. The fiber of claim 1 , wherein said fiber is a bicomponent fiber comprising a sheath component and a core component claim 1 , wherein said sheath ...

COAXIAL SEMICONDUCTIVE ORGANIC NANOFIBERS AND ELECTROSPINNING FABRICATION THEREOF

A coaxial nanocomposite including a core, which includes fibers of a first organic polymer, and a shell, which includes fibers of a second organic polymer, the first polymer and the second polymer forming a heterojunction. 2. The coaxial nanocomposite of claim 1 , wherein the coaxial nanocomposite is a fiber or a disk.3. The coaxial nanocomposite of claim 1 , wherein the heterojunction is a p-n junction.4. The coaxial nanocomposite of claim 1 , wherein the fibers of the first polymer comprise more than one distinct organic polymer.5. The coaxial nanocomposite of claim 1 , wherein the fibers of the first polymer comprise a blend of more than one organic polymer.6. The coaxial nanocomposite of claim 1 , wherein the fibers of the first polymer comprise a blend of p-type regioregular poly(3-hexylthiophene-2 claim 1 ,5-diyl) (P3HT) and polystyrene (PS).7. The coaxial nanocomposite of claim 6 , wherein the PS is present in an amount of about 6 wt % to about 8 wt % of the total weight of P3HT and PS.8. The coaxial nanocomposite of claim 1 , wherein the fibers of the second polymer comprise n-type poly(benzimidazobenzophenanthroline) (BBL).9. The coaxial nanocomposite of claim 1 , wherein the coaxial nanocomposite has a diameter between about 200 nm and about 3000 nm.10. The coaxial nanocomposite of claim 1 , wherein the core has a diameter of about 150 nm to about 250 nm and the shell has a diameter of about 25 nm to about 75 nm.11. A method of forming the coaxial nanocomposite of claim 1 , the method comprising:dissolving the first organic polymer in a first solvent to form a first mixture;dissolving the second organic polymer in a second solvent to form a second mixture; andelectrospinning the first mixture and the second mixture.12. The method of claim 11 , wherein the first organic polymer is a blend of P3HT and about 5 wt % to about 10 wt % PS and the first solvent is chloroform (CHCl).13. The method of claim 12 , wherein the first mixture comprises greater than or ...

POLYPHENYLENE SULFIDE COMPOSITE FIBER AND NONWOVEN FABRIC

Provided are a composite fiber which consists primarily of resins comprising polyphenylene sulfide as their main constituents and which has both thermal dimensional stability and excellent thermal bondability, and a nonwoven fabric. The composite fiber consists primarily of component A and component B, the component A being a resin that includes polyphenylene sulfide as its main constituent, the component B being a resin that includes polyphenylene sulfide as its main constituent, having a higher melt flow rate than the component A, and forming at least part of the surface of the fiber. 1. A polyphenylene sulfide composite fiber consisting primarily of component A and component B ,the component A being a resin that comprises polyphenylene sulfide as its main constituent,the component B being a resin that comprises polyphenylene sulfide as its main constituent, having a higher melt flow rate than the component A, and forming at least part of the surface of the fiber.2. The polyphenylene sulfide composite fiber according to claim 1 , wherein at least part of the surface of the fiber has a lower crystallinity than the center of the cross section of the fiber when the crystallinity of the fiber surface is measured in the region from the fiber surface to 1 μm in the radially inward direction of the fiber.3. The polyphenylene sulfide composite fiber according to or claim 1 , wherein the melt flow rate of the component A (MFR (A)) and the melt flow rate of the component B (MFR (B)) satisfy the following formula:{'br': None, '10 (g/10 min)≦MFR(B)−MFR(A)≦1000 (g/10 min).'}4. The polyphenylene sulfide composite fiber according to or claim 1 , which is a core-sheath composite fiber comprising the component A as a core component and the component B as a sheath component.5. A nonwoven fabric made from the polyphenylene sulfide composite fiber according to or .6. The nonwoven fabric according to claim 5 , which is a spunbonded nonwoven fabric.7. The nonwoven fabric according to ...

Core-sheath fibers and methods of making and using same

According to one aspect of the invention, multicomponent fiber are provided, which comprise (a) a polymeric core that comprises a core-forming polymer and (b) a polymeric sheath that comprises a sheath-forming polymer that is different than the core-forming polymer. Examples of core-forming polymers include, for instance, crosslinked polysiloxanes and thermoplastic polymers, among others. Examples of sheath-forming polymers include, for instance, solvent-soluble polymers, degradable polymers and hydrogel-forming polymers, among others. Other aspects of the present invention pertain to methods of forming such multicomponent fibers. For example, in certain preferred embodiments, the multicomponent fibers are formed using coaxial electrospinning techniques. Still other aspects of the present invention pertain to meshes and other articles that are formed using the multicomponent fibers.

HYDROLYSIS-RESISTANT THERMOPLASTIC POLYURETHANE FIBER AND METHOD FOR PRODUCING THE SAME

The present invention relates to a hydrolysis-resistant thermoplastic polyurethane fiber and a method for producing the same. The thermoplastic polyurethane fiber has a lower thermal shrinking property and an excellent hydrolysis-resistant property, thereby meeting requirements of the application. In the method for producing the hydrolysis-resistant thermoplastic polyurethane fiber, a thermoplastic polyurethane material is firstly provided and subjected to a melt spinning process to form a fiber material. Next, a drawing process is performed to the fiber material to obtain the hydrolysis-resistant thermoplastic polyurethane fiber of the present invention. 1. A hydrolysis-resistant thermoplastic polyurethane fiber , wherein the hydrolysis-resistant thermoplastic polyurethane fiber comprises a polyether based thermoplastic polyurethane material , and the hydrolysis-resistant thermoplastic polyurethane fiber excludes a crosslinking agent , andwherein a decreasing of tenacity of the hydrolysis-resistant thermoplastic polyurethane fiber is not larger than 10% based on a hydrolysis-resistant testing of DIN 53543.2. The hydrolysis-resistant thermoplastic polyurethane fiber of claim 1 , wherein the hydrolysis-resistant thermoplastic polyurethane fiber has a sheath-core structure or a single fiber structure.3. The hydrolysis-resistant thermoplastic polyurethane fiber of claim 1 , wherein a thermal shrinking ratio of the hydrolysis-resistant thermoplastic polyurethane fiber is not larger than 10%.4. A method for producing a hydrolysis-resistant thermoplastic polyurethane fiber claim 1 , comprising:providing a thermoplastic polyurethane material, wherein the thermoplastic polyurethane material is a polyether based thermoplastic polyurethane material, and a melting point of the thermoplastic polyurethane material is 70° C. to 180° C.;performing a melt spinning process to the thermoplastic polyurethane material to form a fiber material, wherein the fiber material includes a ...

COMPOSITE YARN

Provided is a composite yarn. The composite yarn includes a core and a sheath. The core is made of a thermoplastic material; wherein the thermoplastic material is selected from a group consisting of: a polyester, a polyamide, a polyacrylonitrile and any combination thereof. The sheath formed around the core is made of a cladding material, and the cladding material comprises polyvinyl butyral; wherein the polyvinyl butyral has a melt flow rate ranging from 2 g/10 min to 35 g/10 min; the melt flow rate is measured by a standard method ASTM D1238 at 190° C. with 2.16 kg load. 1. A composite yarn , comprising:a core which is made of a thermoplastic material; wherein the thermoplastic material is selected from a group consisting of: a polyester, a polyamide, a polyacrylonitrile and any combination thereof; anda sheath which is formed around the core; wherein the sheath is made of a cladding material, and the cladding material comprises polyvinyl butyral; wherein the polyvinyl butyral has a melt flow rate ranging from 2 grams per 10 minutes to 35 grams per 10 minutes; the melt flow rate is measured by a standard method ASTM D1238 at 190° C. with 2.16 kilograms load.2. The composite yarn as claimed in claim 1 , wherein the sheath has a thickness ranging from 0.08 millimeters to 5.0 millimeters.3. The composite yarn as claimed in claim 1 , wherein the sheath has a thickness ranging from 0.08 millimeters to 0.9 millimeters.4. The composite yarn as claimed in claim 1 , wherein the cladding material further comprises a thermoplastic polyurethane.5. The composite yarn as claimed in claim 4 , wherein the thermoplastic polyurethane is in an amount from larger than 0 part by weight to 100 parts by weight relative to 100 parts by weight of the polyvinyl butyral.6. The composite yarn as claimed in claim 1 , wherein the cladding material further comprises a plasticizer.7. The composite yarn as claimed in claim 6 , wherein the plasticizer is in an amount from 20 parts by weight to 100 ...

COMPOSITE FIBER, METHOD FOR PRODUCING POLYURETHANE ELASTOMER FABRIC, AND POLYURETHANE ELASTOMER FABRIC

Provided is a composite fiber capable of forming a fabric giving a good wearing feeling to a human body. This composite fiber is composed of a polyurethane elastomer having a glass transition temperature of 15 to 50° C. as a component A, and a readily soluble thermoplastic polymer as a component B. In a cross section of the fiber, the component A constitutes a core, and the component B covers 70% or longer of the circumference of the component A. The component B may be, for example, a readily soluble polyester or thermoplastic polyvinyl alcohol-based polymer. The composite ratio (mass ratio) of the component A to the component B may be 90:10 to 40:60. 1. A composite fiber comprising:a polyurethane elastomer having a glass transition temperature of 15 to 50° C. as a component A, the component A constituting a core in a cross section of the fiber, anda readily soluble thermoplastic polymer as a component B, the component B covering 70% or longer of the circumference of the component A in the cross section.2. The composite fiber according to claim 1 , wherein the component B comprises at least one selected from the group consisting of a readily soluble polyester and a thermoplastic polyvinyl alcohol-based polymer.3. The composite fiber according to claim 1 , which has a single fiber fineness of 0.3 to 50 dtex.4. The composite fiber according to claim 1 , wherein the composite ratio (mass ratio) of the component A to the component B is 90:10 to 40:60.5. The composite fiber according to claim 1 , which has a core-sheath structure in which the component A is a core component and the component B is a sheath component.6. A method for producing a polyurethane elastomer fabric claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'preparing a composite fiber as claimed in ;'}producing a fabric comprising the composite fiber by using the composite fiber; andremoving the component B from the fabric to produce a polyurethane elastomer fabric comprising a ...

Fibers made from soluble polymers

A fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition.

FIBER MASTERBATCH AND MELT SPUN FIBER

A fiber masterbatch including a polyetherimide, a polyethylene terephthalate, and a polyimide is provided. A glass transition temperature of the polyimide is between 140° C. and 170° C., a 10% thermogravimetric loss temperature of the polyimide is between 500° C. and 550° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and a solid content of the polyimide is 15 wt %, a viscosity of the polyimide is between 80 cP and 230 cP. A melt spun fiber obtained by using the fiber masterbatch is also provided. 1. A fiber masterbatch , comprising:a polyetherimide;a polyethylene terephthalate; anda polyimide, wherein a glass transition temperature of the polyimide is between 140° C. and 170° C., a 10% thermogravimetric loss temperature of the polyimide is between 500° C. and 550° C., and when the polyimide is dissolved in N-methyl-2-pyrrolidone and has a solid content of 15 wt %, a viscosity of the polyimide is between 80 cP and 230 cP.2. The fiber masterbatch according to claim 1 , wherein a content of the polyetherimide is greater than or equal to 25 parts by weight and less than or equal to 80 parts by weight.3. The fiber masterbatch according to claim 1 , wherein a content of the polyethylene terephthalate is greater than or equal to 20 parts by weight and less than or equal to 70 parts by weight.4. The fiber masterbatch according to claim 1 , wherein a content of the polyimide is 1 part by weight to 5 parts by weight.5. The fiber masterbatch according to claim 1 , wherein a melt index (MI) of the fiber masterbatch is from 70 g/10 min to 150 g/10 min at 320° C.6. A melt spun fiber obtained by using the fiber masterbatch according to .7. The melt spun fiber according to claim 6 , wherein a fiber fineness of the melt spun fiber is between 50 d/96f and 220 d/48f.8. The melt spun fiber according to claim 6 , wherein when the melt spun fiber is a pre-oriented yarn (POY) claim 6 , a fiber strength of the melt spun fiber is greater than or equal to 1.5 g/d.9. The ...

POLYMER FIBERS WITH SHEAR-THICKENING LIQUID CORES

Disclosed is a fiber having a solid sheath and a liquid core. The liquid core has shear-thickening viscosity. Also disclosed is a method of electrospinning the fiber. The fiber may be useful for mechanical and sound damping. 1. A fiber comprising:a solid sheath; anda liquid core;wherein the liquid core has shear-thickening viscosity.2. The fiber of claim 1 , wherein the fiber is made by electrospinning.3. A mat comprising the electrospun fibers of .4. The fiber of claim 1 , wherein the fiber has a diameter of less than 10 microns.5. The fiber of claim 1 , wherein the diameter of the liquid core is non-uniform along the length of the fiber.6. The fiber of claim 1 , wherein the solid sheath comprises a polymer.7. The fiber of claim 1 , wherein the solid sheath comprises poly(caprolactone).8. The fiber of claim 1 , wherein the liquid core comprises a shear-thickening composition.9. The fiber of claim 1 , wherein the liquid core comprises a poly(ethylene glycol).10. The fiber of claim 9 , wherein the liquid core further comprises silica particles.11. A method comprising:electrospinning a fiber comprising:a solid sheath; anda liquid core;wherein the liquid core has shear-thickening viscosity.12. The method of claim 11 , further comprising:forming a mat of the electrospun fibers.13. The method of claim 11 , wherein the fiber has a diameter of less than 10 microns.14. The method of claim 11 , wherein the diameter of the liquid core is non-uniform along the length of the fiber.15. The method of claim 11 , wherein the solid sheath comprises a polymer.16. The method of claim 11 , wherein the solid sheath comprises poly(caprolactone).17. The method of claim 11 , wherein the liquid core comprises a shear-thickening composition.18. The method of claim 11 , wherein the liquid core comprises a poly(ethylene glycol).19. The method of claim 18 , wherein the liquid core further comprises silica particles. This application claims the benefit of U.S. Provisional Application No. 62/799, ...

COMPOSITIONS AND METHODS RELATING TO LIVING SUPRAMOLECULAR POLYMERIZATION AND POLYMERS

A supramolecular polymer with living characteristics is provided based on small molecules or metal complexes of a planar or linear geometry and a polymer. The small molecules are solvophobic and can associate or assemble with each other through non-covalent interactions such as but not limited to metal-metal, π-π, hydrogen-bonding, and/or solvophobic-solvophobic interactions, in the modulation of the polymer. The polymer has affinity to the medium (e.g., solvent) and still interacts with the small molecules via non-covalent interactions such as electrostatic attractions to stabilize the associated/assembled small molecules. Varying the composition and/or length of the polymer can modulate the dimensions of the supramolecular polymer and the nanostructures therefrom. The two- or multi-component supramolecular polymer has active ends to support further supramolecular polymerization upon addition of small molecules of a planar or linear geometry. A process of two-component living supramolecular polymerization is also provided.

FIBER FOR CONTACT COLD SENSATION AND FIBROUS PRODUCT USING THE SAME

A fiber having on a surface a polyacetal copolymer containing a prescribed amount of oxyalkylene unit(s), wherein a cloth comprising the fiber has a heat retention rate of not more than 10%, as measured in accordance with JIS L 1096 A method, is superior in contact cold sensation. 2. The fiber according to claim 1 , wherein the polyacetal copolymer (X) has a degree of orientation of molecular chains of at least 60%.3. The fiber according to or claim 1 , wherein the fiber having on a surface a polyacetal copolymer (X) is a single-layer fiber of the polyacetal copolymer (X).4. The fiber according to claim 1 , wherein the fiber having on a surface a polyacetal copolymer (X) is a multilayer fiber claim 1 , in which a fiber comprising a thermoplastic resin is coated with the polyacetal copolymer (X).5. The fiber according to claim 1 , wherein the fiber having on a surface a polyacetal copolymer (X) is a composite fiber having the polyacetal copolymer (X) on a surface of a fiber comprising a thermoplastic resin.6. The fiber according to claim 4 , wherein the thermoplastic resin is at least one member selected from a polyacetal homopolymer claim 4 , a polyacetal copolymer other than the polyacetal copolymer (X) claim 4 , a polyolefin resin claim 4 , a polylactic acid resin claim 4 , a nylon resin claim 4 , a polyester resin claim 4 , a polyvinyl resin claim 4 , and an elastomer thereof.7. A clothing article from the fiber according to .8. A bedding article from the fiber according to .9. An interior article from the fiber according to .10. An interior automotive trim from the fiber according to . The present invention relates to a fiber for contact cold sensation and fibrous product from the same.Polyacetal is an engineering plastic which is excellent in mechanical physical properties, heat resistance, chemical resistance, and electrical properties, and has been widely used in the fields of, for example, electric devices, automobiles, machines, and building materials. ...

SEA-ISLAND COMPOSITE FIBER, MIXED YARN AND FIBER PRODUCT

A sea-island composite fiber includes two or more kinds of island components having different cross section shapes of which an irregularity difference is 0.2 or more in a same fiber cross section, wherein at least one kind of island component has an irregularity of 1.2 to 5.0 and an irregularity coefficient of variation of 1.0 to 10.0%. 1. A sea-island composite fiber comprising two or more kinds of island components having different cross section shapes of which an irregularity difference is 0.2 or more in a same fiber cross section , wherein at least one kind of island component has an irregularity of 1.2 to 5.0 and an irregularity coefficient of variation of 1.0 to 10.0%.2. The sea-island composite fiber according to claim 1 , wherein the at least one kind of island component has an island component diameter of 10 to 1 claim 1 ,000 nm and an island component diameter coefficient of variation of 1.0 to 20.0%.3. The sea-island composite fiber according to claim 1 , wherein the at least one kind of island component has an irregularity of 1.2 to 5.0 claim 1 , an irregularity coefficient of variation of 1.0 to 10.0% claim 1 , an island component diameter of 10 to 1000 nm and an island component diameter coefficient of variation of 1.0 to 20.0%.4. The sea-island composite fiber according to claim 1 , wherein an island component diameter difference of the two or more kinds of island components having different cross section shapes is 300 to 3 claim 1 ,000 nm.5. The sea-island composite fiber according to claim 1 , wherein first island components (A) having an irregularity of 1.2 to 5.0 claim 1 , an irregularity coefficient of variation of 1.0 to 10.0% and an island component diameter of 10 to 1 claim 1 ,000 nm are disposed around a second island component (B) having an island component diameter of 1 claim 1 ,000 to 4 claim 1 ,000 nm.6. A mixed yarn made by removing the sea component from the sea-island composite fiber according to .7. A fiber product made from the sea- ...

Monofilaments Having Abrasion Resistance, Dimensional Stability, Glideability and Soiling Resistance, Textile Fabrics Comprising Same and Use Thereof

Monofilaments comprising particles of polysiloxane from 10 nm to 200 μm in diameter in a matrix of thermoplastic polymer are provided. The monofilaments are useful in the manufacture of papermachine clothings in particular and are notable for abrasion resistance, dimensional stability, glideability and soiling resistance. 1. A monofilament comprising a matrix of thermoplastic polymer and dispersed therein particles of polysiloxane which are from 10 nm to 200 μm in diameter.2. The monofilament as claimed in wherein the particles of polysiloxane are spherical and from 0.2 to 50 μm in diameter.3. The monofilament as claimed in claim 1 , wherein the particles are present at from 0.01 to 8 wt %.4. The monofilament as claimed in claim 1 , wherein the polysiloxane is a linear or crosslinked polysiloxane comprising the repeating structural element —SiRR—O— or is a silsesquioxane of the formula RSiO claim 1 , where Ris C-C-alkyl claim 1 , in particular methyl claim 1 , and Ris C-C-alkyl or phenyl claim 1 , in particular methyl or phenyl.5. The monofilament as claimed in claim 4 , wherein the polysiloxane is a linear or crosslinked polydimethylsiloxane or a polymethylsilsesquioxane.6. The monofilament as claimed in claim 1 , wherein the thermoplastic polymer is a polyester claim 1 , a polyamide claim 1 , a polyether ketone claim 1 , a polyphenylene sulfide claim 1 , a polyolefin or a combination of two or more thereof.7. The monofilament as claimed in claim 6 , wherein the thermoplastic polymer is a polyethylene terephthalate claim 6 , a polybutylene terephthalate claim 6 , a dicarboxylic acid-modified polyethylene terephthalate claim 6 , a dicarboxylic acid-modified polybutylene terephthalate claim 6 , a nylon-6 claim 6 , a nylon-6 claim 6 ,6 claim 6 , a nylon-6 claim 6 ,10 claim 6 , a nylon-12 claim 6 , a nylon-6 claim 6 ,12 or a combination of two or more thereof.8. The monofilament as claimed in claim 1 , further comprising a carbodiimide stabilizer claim 1 , preferably a ...

Formation of Core-Shell Fibers and Particles by Free Surface Electrospinning

Disclosed are methods that utilize the differences in physical properties between two coating fluids to form core-shell particles or core-shell fibers by coaxial free-surface electrospinning. The methods are able to achieve higher productivity than known methods, and are tunable. Nonwoven fiber mats of electrospun fibers have garnered much scientific and commercial interest in recent years due to their unique properties, such as their high porosity, high surface area and small diameter fibers.

A METHOD OF DELAYING AND REDUCING TEXTURE REVERSION OF A TEXTURED ARTIFICIAL TURF YARN

The invention provides for a method of delaying and reducing texture reversion of a textured artificial turf yarn (), characterized by using a stretched and textured monofilament yarn as the textured artificial turf yarn, the stretched and textured monofilament yarn comprising a polymer mixture (), wherein the polymer mixture is at least a three-phase system, wherein the polymer mixture comprises a first polymer (), a second polymer (), and a compatibilizer (), wherein the first polymer and the second polymer are immiscible, wherein the first polymer forms polymer beads () surrounded by the compatibilizer within the second polymer.

SPANDEX FIBERS FOR ENHANCED BONDING

An elastic fiber is provided that includes polyurethane and/or polyurethaneurea and an additive such as polystyrene, an acrylic polymer, polyvinylpyrrolidone, copolymers thereof, derivatives thereof, and combinations thereof. The elastic fiber is useful in laminate structures, such as disposable hygiene articles as wells as in knit, woven and nonwoven fabric constructions. 1. An elastic fiber comprising polyurethane and/or polyurethane urea and about 0.01% to about 30% by weight of at least one additive selected from the group consisting of a polystyrene , an acrylic polymer , polyvinylpyrrolidone , copolymers thereof , derivative thereof , and combinations thereof.2. The elastic fiber of wherein the additive is a polystyrene claim 1 , a polystyrene copolymer claim 1 , a polystyrene derivative or a combination thereof.3. The elastic fiber of wherein the additive has a number average molecular weight of 50 claim 1 ,000-500 claim 1 ,000.4. The elastic fiber of wherein said elastic fiber is adhered to at least one substrate selected from the group consisting of fabric claim 1 , nonwoven claim 1 , film claim 1 , and combinations thereof.5. The elastic fiber of wherein said elastic fiber is adhered to one or more layers of a substrate selected from the group consisting of fabric claim 1 , nonwoven claim 1 , film claim 1 , and combinations thereof.6. A fabric comprising an elastic fiber comprising polyurethane and/or polyurethane urea and about 0.01% to about 30% by weight of at least one additive selected from the group consisting of a polystyrene claim 1 , an acrylic polymer claim 1 , polyvinylpyrrolidone claim 1 , copolymers thereof claim 1 , derivative thereof claim 1 , and combinations thereof.7. The fabric of wherein the additive is a polystyrene claim 4 , a polystyrene copolymer claim 4 , a polystyrene derivative or a combination thereof.8. The fabric of wherein the additive has a number average molecular weight of 50 claim 4 ,000-500 claim 4 ,000.9. The fabric of ...

FIBERS MADE FROM SOLUBLE POLYMERS

A fiber can be made having a structure with an axial core and a coating layer. The fiber can have a polymer core and one or two layers surrounding the core. The fine fiber can be made from a polymer material and a resinous aldehyde composition such that the general structure of the fiber has a polymer core surrounded by at least a layer of the resinous aldehyde composition. 1. A fiber comprising a nonreactive polymer and a self-crosslinked resinous aldehyde composition.2. The fiber of wherein the nonreactive polymer and self-crosslinked resinous aldehyde composition forms a uniform mixture in a semi-interpenetrating network morphology.3. The fiber of wherein the fiber comprises a core phase and a coating phase; wherein the core phase comprises a nonreactive polymer and the coating phase comprises a self-crosslinked resinous aldehyde composition.4. The fiber of comprising two phases claim 3 , wherein the core phase comprises a mixture of the polymer and the resinous aldehyde composition.5. The fiber of comprising three phases claim 3 , wherein the core phase comprises the polymer claim 3 , the coating phase comprises the resinous aldehyde composition claim 3 , and a transition phase comprises a mixture of the polymer and the resinous aldehyde composition.6. The fiber of which is prepared from a resinous aldehyde composition comprising reactive alkoxy groups and a nonreactive polymer.7. The fiber of wherein the resinous aldehyde composition is present in an amount of greater than 20 parts by weight per 100 parts by weight of the polymer.8. The fiber of which is a fine fiber.9. The fiber of wherein the resinous aldehyde composition comprises a resinous formaldehyde composition.10. The fiber of wherein the resinous formaldehyde composition comprises a resinous melamine-formaldehyde composition.11. The fiber of wherein the resinous aldehyde composition comprises a melamine-aldehyde composition; and wherein the aldehyde comprises formaldehyde claim 1 , acetaldehyde claim ...

Polyvinyl alcohol/chitosan composite soluble electrospun nanofibers for disinfectant anti-bacterial and anti-corrosion applications

A natural liquid composition is provided for disinfectant, antibacterial or anticorrosion applications. The natural liquid composition is an electrospun solubilized composition of natural chitosan (CS) and an FDA approved polymer polyvinyl alcohol (PVA). Two fillers, citric acid (CA) and ascorbic acid (AA), added anti-corrosion property to the composite nanofiber solution without affecting the other properties (disinfectant and antibacterial) and have a final synergistic effect of all components together in a final solution form. Embodiment of the invention advances the art by providing a natural solution to overcome at least some of the problems with the currently used agents.

CORE-SHEATH FIBERS AND METHODS OF MAKING AND USING SAME

According to one aspect of the invention, multicomponent fiber comprising (a) a polymeric core that comprises a core-forming polymer and (b) a polymeric sheath that comprises a hydrophilic polymer, wherein the core-forming fiber is more hydrophobic than the hydrophilic polymer and wherein the polymeric core, the polymeric sheath, or both, further comprises a hydrophilic excipient material. Other aspects of the present invention pertain to methods of forming such multicomponent fibers. Still other aspects of the present invention pertain to meshes and other articles that are formed using the multicomponent fibers. 1. A multicomponent fiber comprising (a) a polymeric core that comprises a core-forming polymer and (b) a polymeric sheath that comprises a hydrophilic polymer , wherein said core-forming fiber is more hydrophobic than said hydrophilic polymer and wherein said polymeric core , said polymeric sheath , or both , further comprises a hydrophilic excipient material.2. The multicomponent fiber of claim 1 , wherein the hydrophilic excipient material is a cross-linked or non-cross-linked hydrophilic polymer that is different from the hydrophilic polymer and the core-forming polymer.3. The multicomponent fiber of claim 2 , wherein the cross-linked or non-cross-linked hydrophilic polymer is a cross-linked or non-cross-linked hydrophilic natural polymer.4. The multicomponent fiber of claim 3 , wherein the cross-linked or non-cross-linked hydrophilic natural polymer is a cross-linked or non-cross-linked polysaccharide.5. The multicomponent fiber of claim 4 , wherein the cross-linked or non-cross-linked polysaccharide is selected from cross-linked and non-cross-linked cellulose and cross-linked and non-cross-linked cellulose derivatives.6. The multicomponent fiber of claim 4 , wherein the cross-linked or non-cross-linked polysaccharide is selected from carboxymethyl cellulose claim 4 , salts of carboxymethyl cellulose claim 4 , cross-linked carboxymethyl cellulose and ...

Polymeric Material

A polymeric material that includes a thermoplastic composition containing a continuous phase that includes a matrix polymer and a siloxane component is provided. The siloxane component contains an ultrahigh molecular weight siloxane polymer that is dispersed within the continuous phase in the form of discrete domains. A porous network is defined within the thermoplastic composition that includes a plurality of nanopores. 1. A polymeric material that comprises a thermoplastic composition , the composition containing a continuous phase that includes a matrix polymer and a siloxane component , wherein the siloxane component contains an ultrahigh molecular weight siloxane polymer that is dispersed within the continuous phase in the form of discrete domains , wherein a porous network is defined within the thermoplastic composition that includes a plurality of nanopores.2. The polymeric material of claim 1 , wherein the siloxane component constitutes from about 0.01 wt. % to about 15 wt. % of the thermoplastic composition.3. The polymeric material of claim 1 , wherein the siloxane polymer has a weight average molecular weight of about 100 claim 1 ,000 grams per mole or more.4. The polymeric material of claim 1 , wherein the siloxane polymer has a kinematic viscosity of about 1×105 centistokes or more.5. The polymeric material of claim 1 , wherein the siloxane polymer contains R3SiO1/2 and SiO4/2 units claim 1 , wherein R is a functional or nonfunctional organic group.6. The polymeric material of claim 5 , wherein R is alkyl claim 5 , aryl claim 5 , cycloalkyl claim 5 , arylenyl claim 5 , alkenyl claim 5 , cycloalkenyl claim 5 , alkoxy claim 5 , or a combination thereof.7. The polymeric material of claim 1 , wherein the siloxane component further comprises a carrier resin.8. The polymeric material of claim 7 , wherein the carrier resin constitutes from about 30 wt. % to about 70 wt. % of the siloxane component and the siloxane polymer constitutes from about 30 wt. % to ...

Improvements Relating to Carbon Fibre Precursors

A composition for use in the formation of a lignin-based carbon fibre precursor is disclosed. The composition is a blend of a lignin and at least 10 wt % of a thermoplastic elastomer. The thermoplastic elastomer may improve the mechanical properties of the lignin-based blend to the extent that conventional carbon fibre precursor formation processes can be carried out using the blend whereas said processes would have been problematic and/or failed when using only lignin to form the carbon fibre precursors. The thermoplastic elastomer is suitably a thermoplastic polyurethane. A carbon fibre precursor produced using the composition is also disclosed, as is a carbon fibre produced from said carbon fibre precursors. Methods of forming said carbon fibre precursors and carbon fibres are also disclosed.

Monofilaments Having Abrasion Resistance, Dimensional Stability, Glideability and Soiling Resistance, Textile Fabrics Comprising Same and Use Thereof

Monofilaments comprising particles of polysiloxane from 10 nm to 200 μm in diameter in a matrix of thermoplastic polymer are provided. The monofilaments are useful in the manufacture of papermachine clothings in particular and are notable for abrasion resistance, dimensional stability, glideability and soiling resistance. 1. A monofilament comprising a matrix of thermoplastic polymer and dispersed therein particles of polysiloxane which are from 10 nm to 200 μm in diameter , wherein the thermoplastic polymer is selected from the group consisting of a polyether ketone , a polyphenylene sulfide , and combinations thereof.2. The monofilament as claimed in wherein the particles of polysiloxane are spherical and from 0.2 to 50 μm in diameter.3. The monofilament as claimed in claim 1 , wherein the particles are present at from 0.01 to 8 wt %.4. The monofilament as claimed in claim 1 , wherein the polysiloxane is a linear or crosslinked polysiloxane comprising the repeating structural element —SiRR—O— or is a silsesquioxane of the formula RSiO claim 1 , where Ris C-C-alkyl claim 1 , in particular methyl claim 1 , and Ris C-C-alkyl or phenyl claim 1 , in particular methyl or phenyl.5. The monofilament as claimed in claim 4 , wherein the polysiloxane is a linear or crosslinked polydimethylsiloxane or a polymethylsilsesquioxane.6. The monofilament as claimed in claim 1 , wherein the dispersed particles are polymethylsilsesquioxane (PMSQ) particles.7. The monofilament as claimed in claim 1 , further comprising a carbodiimide stabilizer.8. The monofilament as claimed in claim 7 , wherein the proportion of thermoplastic polymer is from 60 to 95 wt % claim 7 , the proportion of polysiloxane is from 0.02 to 8 wt % and the proportion of carbodiimide is from 0 to 10 wt % claim 7 , wherein the quantitative particulars are based on the overall amount of the monofilament.9. The monofilament as claimed in claim 1 , further comprising from 0.001 to 10 wt % of customary additives.10. The ...

一种高密度聚乙烯单丝

本发明公开了一种高密度聚乙烯单丝，包括：高密度聚乙烯颗粒、聚丙烯、聚氨酯、催化剂、乙烯、光稳定剂和染色剂，所述的高密度聚乙烯单丝按照质量百分比计算，包括以下组分：高密度聚乙烯颗粒40-50%、聚丙烯10-20%、聚氨酯10-20%、催化剂1-3%、乙烯4-6%、光稳定剂0.1-0.5%和染色剂0.1-0.3%。通过上述方式，本发明能够提供一种高密度聚乙烯单丝，提供的原料按照一定的百分比进行配比之后，所提供的高密度聚乙烯单丝具有良好的质量，且轻度更好、耐腐蚀性能增强，在使用范围上更加广泛。

Absorbent article containing a nonwoven web formed from porous polyolefin fibers

An absorbent article containing a nonwoven web that includes a plurality of polyolefin fibers is provided. The polyolefin fibers are formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

Hollow porous fibers

A hollow fiber that generally extends in a longitudinal direction is provided. The hollow fiber comprises a hollow cavity that extends along at least a portion of the fiber in the longitudinal direction. The cavity is defined by an interior wall that is formed from a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and a nanoinclusion additive dispersed within the continuous phase in the form of discrete domains. A porous network is defined in the composition that includes a plurality of nanopores.

Method of making a web which is extensible in at least one direction

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 , wherein R 1 is higher than R 2 . The first and second components are directed through a spin pack to form a plurality of continuous, molten fibers. The plurality of molten fibers is then routed through a quenching chamber to form a plurality of continuous cooled fibers. The plurality of continuous cooled fibers is then routed through a drawing unit to form a plurality of continuous, solid linear fibers. The linear fibers are then deposited onto a moving support, such ass a forming wire, to form an accumulation or fibers. The accumulation of fibers are stabilized and bonded to form a web. The web is then stretched by at least 50 percent in at least one direction before being allowed to relax. The relaxation of the web causes the fibers to acquire a 3-dimensional, coiled configuration which provides the web with extensibility in at least one direction.

Absorbent article containing a nonwoven web formed from a porous polyolefin fibers

An absorbent article containing a nonwoven web that includes a plurality of polyolefin fibers is provided. The polyolefin fibers are formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

Hollow porous fibers

A hollow fiber that generally extends in a longitudinal direction is provided. The hollow fiber comprises a hollow cavity that extends along at least a portion of the fiber in the longitudinal direction. The cavity is defined by an interior wall that is formed from a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and a nanoinclusion additive dispersed within the continuous phase in the form of discrete domains. A porous network is defined in the composition that includes a plurality of nanopores.

Porous polyolefin fibers

A polyolefin fiber that is formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

Method of forming a 3-dimensional fiber and a web formed from such fibers

A method of forming 3-dimensional fibers is disclosed along with a web formed from such fibers. The 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 , wherein R 1 is higher than R 2 . The first and second components are directed through a spin pack to form a plurality of continuous molten fibers. The molten fibers are then routed through a quenching chamber to form a plurality of continuous cooled fibers. The cooled fibers are then routed through a draw unit to form a plurality of continuous, solid linear fibers. The solid fibers are then accumulated and stretched by at least about 50 percent. The plurality of stretched fibers are then cut and allowed to relax such that a plurality of 3-dimensional, coiled fibers is formed.

Method of forming a 3-dimensional fiber into a web

A method of forming 3-dimensional fibers into a web is disclosed. The 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 , wherein R 1 is higher than R 2 The first and second components are directed through a spin pack to form a plurality of continuous, molten fibers. The molten fibers are then routed through a quenching chamber to form a plurality of continuous cooled fibers. The cooled fibers are then routed through a drawing unit to form a plurality of continuous, solid linear fibers. Each of the solid fibers is then stretched by at least 50 percent before it is allowed to relax. The relaxation step forms the linear fibers into a plurality of continuous 3-dimensional fibers each having a coiled configuration over at least a portion of its length. The continuous 3-dimensional, coiled fibers are then deposited onto a moving support to form a web.

Method of making a web which is extensible in at least one direction

A method of forming bicomponent fibers into a web is disclosed. The 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 , wherein R 1 is higher than R 2 The first and second components are directed through a spin pack to form a plurality of continuous, molten fibers. The plurality of molten fibers is then routed through a quenching chamber to form a plurality of continuous cooled fibers. The plurality of continuous cooled fibers is then routed through a drawing unit to form a plurality of continuous, solid linear fibers. The linear fibers are then deposited onto a moving support, such as a forming wire, to form an accumulation of fibers. The accumulation of fibers are stabilized and bonded to form a web. The web is then stretched by at least 50 percent in at least one direction before being allowed to relax. The relaxation of the web causes the fibers to acquire a 3-dimensional, coiled configuration which provides the web with extensibility in at least one direction.

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 , wherein R 1 is higher than R 2 . The first and second components are directed through a spin pack to form a plurality of continuous, molten fibers. The molten fibers are then muted through a quenching chamber to form a plurality of continuous cooled fibers. The coiled fibers are then routed through a drawing unit to form a plurality of continuous, solid linear fibers. Each of the solid fibers is then stretched by at least 50 percent before it is allowed to relax. The relaxation step forms the linear fibers into a plurality of continuous 3-dimensional fibers each having a coiled configuration over at least a portion of its length. The continuous 3-dimensional, coiled fibers are then deposited onto a moving support to form a web.

The method of preparing a thermoplastic polyurethane yarn

The present invention relates to a composition for thermoplastic polyurethane yarn and a preparation method thereof, wherein the thermoplastic polyurethane yarn is manufactured by collecting virgin type thermoplastic polyurethane, scraps remaining after being used for air bag patterns for manufacturing process of shoes, and scraps remaining after processing thermoplastic polyurethane, mixing various thermoplastic polyurethane and various additives, compounding the mixture, and extruding the mixture using an extruder, improves physical properties, and is 250 denier or less. [Reference numerals] (AA) Cooling bath;(BB) Cylinder;(CC) Cutting machine;(DD) Dice

Multicomponent fibers

The present invention is directed to multicomponent fibers having poly(ethylene oxide) in at least a portion of the exposed surface of the fiber. In one embodiment, the PEO is a grafted poly(ethylene oxide). The multicomponent fibers of the present may be used to manufacture nonwoven webs that can be used as components in medical and health care related items, wipes and personal care absorbent articles such as diapers, training pants, incontinence garments, sanitary napkins, pantiliners, bandages and the like.

Multicomponent fiber including elastic elements

Disclosed herein are multicomponent fibers, and particularly sheath-and-core type multicomponent fibers including elastic polymers. The multicomponent fibers have at least three cross sectional elements, wherein a first cross sectional element is an outer sheath element, the second cross sectional element is an inner sheath element, and the third cross sectional element may be either a hollow element or a filled core element.

Multi-component fibers, nonwoven webs, and articles comprising a polydiorganosiloxane polyamide

Nonwoven webs are described wherein the web has an inverted MVTR of at least 10,000 g/m 2 /24h and a resistance to water penetration of at least 10 min according to EN20811. In a favored embodiment, the nonwoven web comprises a multi-component fiber. Also described are multi-component fiber comprising a core and outer layer and nonwoven webs comprising such. At least a portion of the outer layer comprises a first melt processable composition comprising a polydiorganosiloxane polyamide copolymer. The core comprises a second melt processable composition that does not comprise a polydiorganosiloxane polymer. The multi-component fiber comprises 5 to 25 wt-% of the polydiorganosiloxane polyamide copolymer

Multicomponent fiber including elastic elements

Disclosed herein are multicomponent fibers, and particularly sheath-and-core type multicomponent fibers including elastic polymers. The multicomponent fibers have at least three cross sectional elements, wherein a first cross sectional element is an outer sheath element, the second cross sectional element is an inner sheath element, and the third cross sectional element may be either a hollow element or a filled core element.

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 including both stickiness and blocking. The first polymeric component and second polymeric component are arranged in substantially distinct zones extending longitudinally along at least a portion of a length of the strands which make up the web with the second component containing a zone constituting at least a portion of the peripheral surface of the strand. The first polymeric component also has an elasticity which is greater than that of the second polymer component. A process producing elastomeric spunbonded nonwoven fabrics which utilizes the activation by incremental stretching of the strands is also provided.

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 including both stickiness and blocking. The first polymeric component and second polymeric component are arranged in substantially distinct zones extending longitudinally along at least a portion of a length of the strands which make up the web with the second component containing a zone constituting at least a portion of the peripheral surface of the strand. The first polymeric component also has an elasticity which is greater than that of the second polymer component. A process producing elastomeric spunbonded nonwoven fabrics which utilizes the activation by incremental stretching of the strands is also provided.

Absorbent article containing a nonwoven web formed from porous polyolefin fibers

An absorbent article containing a nonwoven web that includes a plurality of polyolefin fibers is provided. The polyolefin fibers are formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

Bicomponent fiber for the production of spunbonded nonwovens

Die Erfindung betrifft eine Bikomponentenfaser (1), insbesondere zur Herstellung von Spinnvliesen (4), mit einer ersten Komponente (2) und einer zweiten Komponente (3), wobei die erste Komponente (2) ein erstes Polymer und die zweite Komponente ein zweites Polymer als Bestandteil. Erfindungsgemäß ist vorgesehen, dass die Differenz der Schmelzpunkte der ersten Komponente (2) und der zweiten Komponente (3) kleiner oder gleich 8°C ist. The invention relates to a bicomponent fiber (1), in particular for producing spunbonded nonwovens (4), having a first component (2) and a second component (3), wherein the first component (2) is a first polymer and the second component is a second polymer as a component. According to the invention, it is provided that the difference between the melting points of the first component (2) and the second component (3) is less than or equal to 8 ° C.

Hollow porous fibers

Hydrophilic, multicomponent polymeric strands and nonwoven fabrics made therewith

A hydrophilic melt-extruded multicomponent polymeric strand including a first melt-extrudable polymeric component and a second melt-extrudable, hydrophilic polymeric component, the first and second components being arranged in substantially distinct zones across the cross-section of the multicomponent strand and extending continuously along the length of the multicomponent strand, the second component constituting at least a portion of the peripheral surface of the multicomponent strand continuously along the length of the multicomponent strand. The second component renders the strand hydrophilic and preferably has a critical surface tension at 20° C. greater than about 55 dyne/cc, and more preferably greater than about 65 dyne/cc. A suitable hydrophilic second component comprises a block copolymer of nylon 6 and polyethylene oxide diamine. Suitable polymers for the first component include linear polycondensates and crystalline polyolefins such as polypropylene. Nonwoven fabrics and absorbent articles made with the hydrophilic multicomponent polymeric strands are also disclosed.

一种适用于打印成型技术的人工合成纤维织物的加工工艺

本发明公开了一种适用于打印成型技术的人工合成纤维织物的加工工艺，具体步骤如下：混合均匀后得到打印母料；将打印母料加入到螺杆挤出机内，熔融挤出；采用纺丝机对熔融挤出的物料进行纺丝；将分散染料、液态二氧化碳加入到超临界二氧化碳染色装置内，进行染色；控制超临界二氧化碳染色装置进行释压；将染色后的人工合成纤维输送进3d打印机内；3d打印机将人工合成纤维打印出人工合成纤维织物；数码喷射印花机对人工合成纤维织物进行数码印花，加工即完成。本发明具有操作方便、环保效果好、综合性能高等优点。

Porous polyolefin fibers

Absorbent article containing a nonwoven web formed from porous polyolefin fibers

Polymer material

FIELD: polymer production. SUBSTANCE: invention relates to polymer material for manufacturing fiber, film or an absorbing product, fiber, non-woven canvas and an absorbing product that include the specified polymer material, as well as to methods for the formation of polymer material and fiber. Polymer material contains a thermoplastic composition. The composition contains a continuous phase that includes matrix polymer and a siloxane component. The siloxane component contains ultra-high-molecular siloxane polymer that is dispersed in the continuous phase in the form of discrete domains. A porous network is defined in the thermoplastic composition that includes a set of nanopores. Siloxane polymer is characterized in average-weight molecular weight of approximately 100,000 g/mol or more. Matrix polymer includes composite polyester or polyolefin. EFFECT: obtaining improved polymer material that is porous. 26 cl, 1 tbl, 61 ex, 24 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 765 293 C2 (51) МПК C08J 9/00 (2006.01) C08L 83/04 (2006.01) C08L 67/02 (2006.01) C08L 23/06 (2006.01) C08L 23/12 (2006.01) D01F 8/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА D04H 3/005 (2012.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ D04H 1/00 (2006.01) B82Y 30/00 (2011.01) (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C08J 9/00 (2021.08); C08L 83/04 (2021.08); C08L 67/02 (2021.08); C08L 23/06 (2021.08); C08L 23/12 (2021.08); D01F 8/16 (2021.08); D04H 3/005 (2021.08); D04H 1/00 (2021.08); B82Y 30/00 (2021.08) 2019123213, 19.01.2018 (24) Дата начала отсчета срока действия патента: 19.01.2018 Дата регистрации: Приоритет(ы): (30) Конвенционный приоритет: 31.01.2017 US 62/452,585; 28.02.2017 US 62/464,582 (43) Дата публикации заявки: 25.01.2021 Бюл. № 3 (73) Патентообладатель(и): КИМБЕРЛИ-КЛАРК ВОРЛДВАЙД, ИНК. (US) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 23.07.2019 (56) Список документов, цитированных в отчете о поиске: WO 2016085711 A1, 02.06.2016. US 4640962 A1, 03.02.1987. US 20160101208 A1, ...

Haptic materials and process for preparation

Haptic materials and the process for preparation of such materials. The invention described the process to form a fiber comprising a polymer from the class of amorphous thermoplastics with a glass transition temperature sufficiently above temperatures used in standard sterilization techniques, such as steam sterilization and dry heat sterilization. Such a high glass transition temperature provides adequate thermomechanical stability during standard steam sterilization (such as with an autoclave) and dry heat sterilization. Consequently, the haptics made of the thermoplastics described herein do not relax and lose their critical form during heat sterilization. Examples of such thermoplastics are polymers such as polyether sulfone (PES), polysulfone (PSU), polyetherimide (PEI), polyphenylene sulfone (PPSU) or related materials. Moreover, the fiber of this invention offer improved durability and toughness for use as haptics in an intraocular lens (IOL). Stresses imposed during implantation of an IOL impose significant breakage risks on haptics. Thus high strength and flexibility are also major considerations in the preparation of haptic materials.

一种生产弹性包覆线的方法

本发明提供了一种生产弹性包覆线的方法，包括：皮层材料熔融，通过包覆机与芯线一起挤出，将皮层材料包覆在芯线表面，形成包覆线；在小于等于皮层材料熔融温度的温度下，皮层材料凝固在芯线表面，凝固过程中，对包覆线施加拉伸张力，在张力和温度共同作用下，皮层材料结晶与相分离同时发生；所述相分离是指晶区与非晶区的分离；然后冷却成型。本发明经过热定型工艺，实现了皮层径向收缩、与芯线轴向收缩(即径向膨胀)相结合，皮层与芯线紧密结合，从而提高了强度、抗弯折性、耐刮耐磨性以及弹性恢复率，拉伸、弯曲和压缩回弹率超过99％；拉伸、弯折和挤压时，芯线与皮层不易剥离。

Bi-component spandex with reduced friction

본원에서는 다중 엔드 스판덱스 패키지를 제공하도록 조합된 마찰이 감소된 스판텍스 섬유가 개시된다. 스판덱스 섬유는 시스-코어 단면을 가지며, 시스에는 윤활 첨가제가 포함되어 있다. 얀 내의 개별 필라멘트들 사이의 유착을 피하기 위하여 융합 첨가제는 특별히 배제시킨다. 얀 패키지 내에 조합될 때, 다수의 필라멘트는 분리가능하다. Disclosed herein is a friction reduced span-tex fiber combination to provide a multi-end spandex package. The spandex fibers have a sheath-core cross-section, and the sheath contains a lubricating additive. Fusion additives are specifically excluded to avoid adhesion between individual filaments in the yarn. When combined in a yarn package, the plurality of filaments are separable.