Class 442/359 - Synthetic polymeric strand or fiber material

Subclass of Class 442 - Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Definition: Subject matter wherein the strand or a filamentary constituent
No. of patents: 33
Last issue date: 04/15/2008

Number	Title	Issue Date
7357889	Melt spun TPU fibers and process Thermoplastic polyether polyurethane polymers are disclosed which are mixed with a non-polyether crosslinking agent to achieve long run times in a melt spinning process to make elastic fibers. The crosslinking agent is preferably a polyester polyol reacted with a di...	04/15/2008
7303808	Bulky sheet material having three-dimensional protrusions A bulky sheet material having three-dimensional protrusions 10 is disclosed. The sheet material comprises a first layer 1 and a second layer 2 adjacent to the first layer 1. The first layer 1 and the second layer 2 is partly...	12/04/2007
7150616	Die for producing meltblown multicomponent fibers and meltblown nonwoven fabrics A die tip adapted for extruding a plurality of meltblown multicomponent filaments that includes at least two series of conduits that extend and converge in to the interior of the die tip to convey a multicomponent thermoplastic structure in to the interior of the di...	12/19/2006
7147734	Method for forming fire combustion modified batt The present invention relates to a method for forming a fire combustion modified batt. The method comprises the step of forming a blend of nonwoven and oxidized polyacrylonitrile fibers into a web. The oxidized polyacrylonitrile fibers are fire resistant and when bl...	12/12/2006
7131171	Method for restoring bulkiness of nonwoven fabric A method for restoring bulkiness of nonwoven fabric which contains crimped thermoplastic fiber and is in a roll form is disclosed. The method comprises unwinding the nonwoven fabric from the stock roll, and blowing hot air to the unwound nonwoven fabric by a through...	11/07/2006
7132022	Bi-layer nonwoven fire resistant batt and an associated method for manufacturing the same A bi-layered fire resistant (FR) nonwoven fiber batt and an associated method for manufacturing the same. The bi-layered FR nonwoven fiber batt includes a first, gray, FR layer, formed from a blend of black oxidized polyacrylonitrile (oxidized PAN), white dry polyes...	11/07/2006
7014441	Fiber draw unit nozzles for use in polymer fiber production A nozzle is described for downwardly directing air from an air intake of a fiber draw unit into a longitudinal channel of the fiber draw unit for forming spunbond polymeric fibers. The nozzle includes an upper eductor connected to the fiber draw unit and a lower edu...	03/21/2006
7001554	Synthetic fiber filled erosion control blanket A durable erosion control blanket featuring a novel synthetic fiber filler is disclosed. The erosion control blanket of the present invention addresses the need for a particularly resilient erosion control blanket through the use of a post-consumer, crimped, polyest...	02/21/2006
6900147	Nonwoven webs having improved necking uniformity A neckable nonwoven web is provided with a central region and two edge regions, the central region being selectively easier to neck than the two edge regions. The nonwoven fibers in the central region have a polymer composition and/or physical properties which diffe...	05/31/2005
6855650	Synthetic fiber filled erosion control blanket A durable erosion control blanket featuring a novel synthetic fiber filler is disclosed. The erosion control blanket of the present invention addresses the need for a particularly resilient erosion control blanket through the use of a post-consumer, crimped, polyest...	02/15/2005
6740609	Soft polypropylene melt spun nonwoven fabric A blend of fatty acid amides is incorporated into the polypropylene fibers of a thermally bonded, melt extruded nonwoven fabric to import softness to the fabric. The blend includes a greater amount of stearamide and a lesser amount of erucamide. ...	05/25/2004
6689703	Elastically stretchable nonwoven fabric and process for making the same An elastically stretchable nonwoven fabric including thermoplastic elastomer filaments; the filaments being heat-sealed and/or mechanically intertwined together to form the nonwoven fabric that has crimped regions and non-crimped regions wherein each of t...	02/10/2004
6200669	Entangled nonwoven fabrics and methods for forming the same Nonwoven webs are fabricated by forming unitary multicomponent fibers comprising a plurality of individual segments partially exposed at the surface of the fiber; bonding the multicomponent fibers, such as by thermal point bonding, and then hydroentanglin...	03/13/2001
5906952	Single layer absorbent cable wrap A water-absorbent wrap for power cables, communication cables, and like cables includes a calendered, single layer nonwoven formed of a carded mixture of super water-absorbent fibers and cohesive carrier fibers. The calendered nonwoven is characterized by...	05/25/1999
5876840	Crimp enhancement additive for multicomponent filaments Spunbond multicomponent filaments and nonwoven webs made from the filaments are disclosed. In accordance with the present invention, the multicomponent filaments contain a crimp enhancement additive. Specifically, the crimp enhancement additive is added t...	03/02/1999
5695377	Nonwoven fabrics having improved fiber twisting and crimping There is provided a fabric produced by a spunbond or a meltblown apparatus, wherein the apparatus has a pneumatic chamber having at least one wall containing a plurality of spaced protrusions. Preferably, both opposing walls contain protrusions aligned in...	12/09/1997
5662728	Particulate filter structure A particulate filter structure and method for making the structure are disclosed. The structure includes a stable framework of relatively large denier fibers having a lower melting component and a higher melting component. The larger denier fibers have a ...	09/02/1997
5597645	Nonwoven filter media for gas The present invention provides a filter medium, which contains an electretized nonwoven web of crimped fibers selected from the group consisting of spunbond filaments and staple fibers, wherein the nonwoven web has a Frazier permeability equal to or great...	01/28/1997
5587225	Knit-like nonwoven composite fabric The present invention provides a durable, launderable hydroentangled composite that is highly suitable for skin-contacting uses. The composite is a hydrogentangled composite which is pattern bonded. The composite contains two filamentous web layers contai...	12/24/1996
5454142	Nonwoven fabric having elastometric and foam-like compressibility and resilience and process therefor A needlepunch fabric of staple polyester fibers is disclosed that is elastomeric and has foam-like compressibility and resilience. The polyester staple is formed of fibers having a differential birefringence. Mechanically crimped fibers are carded, crossl...	10/03/1995
5427845	Crimped melt-spun copolymer filaments Melt-spun filaments having a highly crimped configuration which is imparted by differential cooling, nonwoven webs of the crimped melt-spun filaments, and a process of forming a nonwoven web of the crimped filaments are disclosed. The filaments are formed...	06/27/1995
5384189	Water-decomposable non-woven fabric A water-decomposable non-woven fabric comprises a water-dispersible fiber layer, each fiber of which is bound with one another using a water-soluble binder comprising an unsaturated carboxylic acid/unsaturated carboxylic acid ester copolymer in which 1 to...	01/24/1995
5368734	Triboelectric filtration material An electrically charged air filter which comprises a blend of clean expanded porous polytetrafluoroethylene fibers and clean polyamide fibers....	11/29/1994
5368925	Bulk recoverable nonwoven fabric, process for producing the same and method for recovering the bulk thereof A bulk-recoverable nonwoven fabric comprising a nonwoven fabric of which constituting fiber is bonded to each other by an adhesive agent to bond fibers and which is fixed in a compressed state by a temporary adhesive agent having a melting temperature low...	11/29/1994
5350625	Absorbent acrylic spunlaced fabric Spunlaced fabric having improved water absorbency containing a blend of certain hydrophilic cellulosic and acrylic fibers and layered absorbent materials made therefrom....	09/27/1994
5298321	Recyclable vehicular cushioning material and seat A recyclable vehicular cushioning material which is thermoformed from a web composed of three-dimensionally crimped polyester fiber having a fineness lower than 45 denier per filament and an initial tensile strength (IS) higher than 30 g/d and heat-bondin...	03/29/1994
4952265	Mat consisting of filament loop aggregations and method and apparatus for producing the same In this mat consisting of filament loop aggregations, irregular form loops are formed in the upright direction by respectively winding to be coil-like many filaments coarse in the arranging intervals and made of a thermoplastic synthetic resin and are fus...	08/28/1990
4868037	Insulated articles containing non-linear carbonaceous fibers An improved washable insulating article comprising a batting of resilient, elongatable, non-flammable non-linear carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and an LOI valu...	09/19/1989
4482603	Wholly aromatic polyamide fiber non-woven sheet and processes for producing the same A wholly aromatic polyamide fiber non-woven sheet having satisfactory density, impregnating property, heat resistance, and surface evenness, comprises mutually, randomly entangled fibers consisting essentially of a wholly aromatic polyamide having 85 mola...	11/13/1984
4418116	Copolyester binder filaments and fibers Novel improved copolyester binder filaments and fibers consist essentially of the terephthalate of ethylene and diethylene glycols with the mol percent of the latter being in the range of 20 to 45 percent....	11/29/1983
4304234	Non-woven fabrics of polyolefin filament and processes of production thereof Spun, non-woven fabrics from bonded polyolefin filaments deposited in a random fashion and comprising individual filaments and filament groups of at least two parallelized individual filaments, and at least a portion of the individual filaments and filame...	12/08/1981
4172172	Nonwoven fabric of three dimensional entanglement A nonwoven fabric having no pattern and composed of 100% synthetic fibers, wherein individual fibers are held together by three-dimensional entanglement into a stabilized sheet form without being subjected to any bonding treatment, which nonwoven fabric h...	10/23/1979
4103450	Insecticidal device A shaped device with insecticidal properties is provided by a lofty, open low-density web impregnated with an insecticidal substance. The web is formed of randomly disposed crimped or looped synthetic fibers bonded together at points where they touch and ...	08/01/1978

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Class 442/359 - Synthetic polymeric strand or fiber material