Class 57/905 - BICOMPONENT MATERIAL

Subclass of Class 57 - Textiles: spinning, twisting, and twining
Definition: Twisted strand structures in which the individual fibers
No. of patents: 36
Last issue date: 01/05/1999

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Number	Title	Issue Date
5856005	Permanently anti-microbial and flame-retardant yarn and fabric made therefrom A permanently flame-retardant and anti-microbial air-textured yarn is formed of a plurality of substantially longitudinally extending, permanently flame-retardant filaments defining a core, and a plurality of substantially randomly extending, permanently ...	01/05/1999
5688301	Method for producing non-woven material from irregularly shaped glass fibers An irregularly shaped glass fiber is provided which enjoys improved resiliency, and openness in pack structures. Wool packs and other wool portions having such irregularly shaped fibers may be processed directly through needling to form a non-woven materi...	11/18/1997
5487941	Continuous/discontinuous filament yarn or tow A yarn/tow composed of continuous thermoplastic filaments and discontinuous structural filaments wherein the discontinuous structural filaments are intermingled with the continuous thermoplastic filaments. Groups of discontinuous structural filaments have...	01/30/1996
5468555	Yarn formed from core-sheath filaments and production thereof In a yarn composed of core-sheath filaments with or without further monocomponent filaments, the core and the sheath of the core-sheath filaments are produced by extruding spinnable polymers, with at least almost all the core-sheath filaments having a com...	11/21/1995
5458968	Fiber bundles including reversible crimp filaments having improved dyeability A bicomponent, reversible crimp filament useful in textile and fabrics applications is disclosed. The filament is characterized by a total shrinkage of between about 25 percent and about 50 percent, a fiber shrinkage of between about 2 percent and about 2...	10/17/1995
5429868	Yarn, especially sewing yarn, and method of producing same A yarn, especially a sewing yarn, comprises at least two multifile yarn components. The first yarn component forms mainly the core of the yarn and the second yarn component forms mainly the jacket of the yarn. The two yarn components are intermingled with...	07/04/1995
5429869	Composition of expanded polytetrafluoroethylene and similar polymers and method for producing same The present invention provides improved compositions of expanded polytetrafluoroethylene (PTFE) and similar polymers and methods for forming and using such compositions. In its preferred embodiment, the present invention employs a mixture of PTFE and expa...	07/04/1995
5366797	Bonded yarn bundle, and textile sheet materials obtainable therefrom Bonded yarn bundle, manufacture thereof and textile sheet materials obtainable therefrom. There is described a yarn bundle having a tenacity of at least 42 cN/tex, comprising at least one twisted multifilament yarn composed of a first synthetic polymer, f...	11/22/1994
5360503	Semi-finished product and thermoplastic composite material having liquid crystal polymers and process for the production of the material The semi-finished product according to the invention consists exclusively of liquid crystal thermoplastic polymers (LCP), whereof at least one first liquid crystal thermoplastic polymer (LCP) is in the form of fibers (18) and has a given melting point, an...	11/01/1994
5336562	Polyolefin yarns with good performance for rugs and carpets and method of producing the same The invention relates to a novel type of polyolefine yarns with good performance in the manufacture of rugs and carpets, made-up by admixing polypropylene filaments with polyethylene filaments, and by subjecting said filaments mixture to a temperature of ...	08/09/1994
5318845	Conductive composite filament and process for producing the same A highly oriented, undrawn, conductive, composite filament is provided, which is white or colorless and has antistatic properties durable over a long period when clothing utilizing the fiber are actually put on and washed. The filament is a sheath-core co...	06/07/1994
5213865	Antistatic mat This invention relates to an antistatic mat for a vehicle, and especially relates to an antistatic mat equipped with electric discharge function against generation of static electricity for effectively preventing adhesion of dust and rubbish thereon and s...	05/25/1993
5130195	Reversible crimp bicomponent acrylic fibers An acrylic fiber tow is disclosed which comprises 1) monocomponent filaments of each of two acrylonitrile polymers differing in hydrophilic properties, 2) bicomponent filaments of both of said polymers having one interface between polymers components and ...	07/14/1992
5026603	Staple fibers and process for making them Staple fibers having a crimp frequency in the range of 3 to 6 crimps per centimeter are mae by a process including a co-crimping step in which conductive and nonconductive filaments are crimped together....	06/25/1991
5009946	Composite sheet for automotive use There is described a composite sheet includes a textile layer containing an electrically conductive fiber with an electric resistance of 105 to 109 ohms/cm as disposed at spaced intervals not exceeding 30 mm and a semiconductive laye...	04/23/1991
4929698	New polyester yarns having pleasing aesthetics Flat polyester yarns that provide soft pleasing fabrics that can easily be brushed (or napped) to enhance their aesthetics, on account of their unusually low tenacity, that consist essentially of cationic dyeable polyester filaments, and corresponding spi...	05/29/1990
4861633	Cylindrical filter A superior cylindrical filter having a long filtration life is provided, which filter is obtained by using interlaced filaments comprising 20% by weight or more of hot-melt-adhesive composite filaments composed of plurality of components having a melting ...	08/29/1989
4517715	Chenille woven or knitted fabric and process for producing the same An improved chenille woven or knitted fabric utilizing at least a chenille yarn composed of synthetic fibers, wherein raised fibers forming a raised fiber portion of the chenille yarn are composed of ultra-fine fibers having a fineness smaller than 0.9 de...	05/21/1985
4489543	Self-crimping yarn Polyester polymer is extruded through converging capillaries at different speeds to merge and form a combined stream. The stream is cooled to form a filament, which is withdrawn at a high speed. A plurality of such filaments are combined into yarn which s...	12/25/1984
4473996	Polyester conjugate crimped yarns Polyester conjugate crimped yarns prepared by conjugate spinning (1) an A component substantially comprising polybutylene terephthalate and (2) a B component substantially comprising polyethylene terephthalate at a weight ratio of 30:70 to 70:30 in a side-by-side or ecc...	10/02/1984
4419313	Self crimping yarn and process Two molten streams of polyester polymer are extruded at different speeds to intersect below the spinneret. The spinning speed is relatively high, and the resulting filament has shrinkage peaks and valleys along its length. When a number of such filaments ...	12/06/1983
4351147	Spun-like yarn A textured continuous filament yarn combining a luxuriant, soft hand with improved moisture wicking for greater comfort in garments. Some filaments have a denier which varies at least 25% (preferably 300-500%), and other filaments have a spiral cross-sect...	09/28/1982
4350006	Synthetic filaments and the like A synthetic filament and a yarn composed thereof wherein the filament comprises at least two different incompatible synthetic linear high polymers, one being distributed as islands in the sea of the other polymer element when seen in cross-section, each i...	09/21/1982
4244173	Boucle yarn and process for its preparation A boucle yarn is prepared by relaxed heat treatment of a precursor yarn prepared by combination of a low shrinkage filament or yarn or monofil at the back of the front roller of a spinning frame with a roving of high shrinkage fibers followed by twisting ...	01/13/1981
4145473	Antistatic filament having a polymeric sheath and a conductive polymeric core An antistatic filament having a polymeric sheath and a conductive polymeric core of a defined nature, the core constituting less than 10% of the cross-sectional area of the filament....	03/20/1979
4127696	Multi-core composite filaments and process for producing same Disclosed are an improved islands-in-a-sea type multi-core composite filament comprising at least two different polymer components and having a cross-section wherein each island is surrounded by some other islands and most of the islands have an approxima...	11/28/1978
4122658	False-twist yarn and process "Islands-in-a-sea" type composite filaments consisting of a relatively low melting point sea component and a plurality of higher melting point island components are false-twisted at a false-twisting temperature Q, wherein: (wherein P is the melting point of th...	10/31/1978
4115989	Product and process Polyester yarn having the desirable crimp properties of false-twist textured, heat-set yarn is produced from melt-spun and drawn bicomponent filaments wherein poly(ethylene terephthalate) of 12 to 15 relative viscosity is one component and a copolyester o...	09/26/1978
4115992	Method of making textured continuous filament yarn A textured continuous filament yarn is obtained by drafting in a wet condition a sliver or a roving, which comprises at least staple fibre material, by combining the thinner fibre strand so obtained with at least one continuous filament to form a filament...	09/26/1978
4100725	Yarn having alternating entangled and unentangled lengths A yarn is provided which has zero twist and random lengths of tightly entangled fibers as nodes having substantially zero twist and comprising an average of about 20%-70% of a representative length of yarn, said nodes having a retentivity of at least 75% ...	07/18/1978
4060968	Polyester fibers having wool-like hand and process for producing same Bicomponent polyester fibers exhibiting a hand similar to wool, a crimp contraction less than 60%, and a crimp frequency of at least 7 half-waves per centimeter, and the process for producing the same, are disclosed. These crimped bicomponent fibers are useful...	12/06/1977
4019311	Process for the production of a multifilament texturized yarn A process for the production of a multifilament textured yarn by melt-spinning different polymers (for example a polyamide and a polyester) or copolymers (for example copolymers of nylon-6 and nylon-6,6) to form a highly preoriented multifilament yarn at ...	04/26/1977
3992499	Process for sheath-core cospun heather yarns In cospinning two fiber-forming polymers to produce a composite heather yarn from filaments of different dyeability, the apparent weight ratio of one polymer in the yarn can be varied by spinning only a portion of that polymer as a monocomponent filament ...	11/16/1976
3959962	Method of forming a bulked polyester textile yarns A bulked polyester textile yarn composed of drawn helically crimped bicomponent continuous filaments and drawn substantially uncrimped continuous homofilaments is made by interlacing and substantially simultaneously relaxing a mixture of (A) potentially c...	06/01/1976
3940917	Composite elastic yarns and process for producing them A composite yarn, which is bulky when relaxed and elongates to at least 100 percent greater length under tension, with quick recovery of the relaxed condition when tension is removed, is composed of uncrimped elastic yarn and at least five relatively inel...	03/02/1976
3937000	Continuous bi-compound acrylic bulky yarn and the method of the production of same A continuous bi-compound bulky yarn consisting of a pair of acrylic polymeric components differing from each other in some of their properties is prepared by spinning those components in solution to produce a spun yarn which is drawn and then, successivel...	02/10/1976

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Class 57/905 - BICOMPONENT MATERIAL