Abstract: A packing yarn and a method of manufacturing a packing yarn composed of at least two bands which are at most 5 mm wide and are joined together by a yarn manufacturing method, include forming the bands of a laminate having at least one layer of flexible graphite and at least one layer of a metal foil with a tensile strength of at least 250 MPa. The layers of graphite foil and metal foil are joined by adhesion or through the use of a non-adhesive-like coupling agent. The bands are produced from the laminates by cutting, which is preferably effected continuously. Advantages thereof are that strips or bands of flexible graphite, which have a tensile strength that is totally inadequate for the manufacture of packing yarns, are altered in terms of their mechanical properties.

Abstract: Crimped polyester fibers which comprise a polytrimethylene terephthalate-based polyester and have three-dimensional crimps with a number of crimps of 9 to 30 peaks/25 mm and a crimp ratio of 20 to 50% and further a crimp modulus of elasticity of 80% or above. A fiber structure wherein the weight ratio of staple fibers of the above crimped polyester fibers to heat-bonding conjugated staple fibers is 30:70 to 95:5 and heat-bonded spots are formed at least partially in contact points of both the staple fibers and/or contact points of the mutual heat-bonding conjugated staple fibers.

Abstract: Hollow carbon microcoils are provided having a pitch that is substantially zero. Also provided are ceramic microcoils comprising a metal nitride, a metal carbide or a metal carbonitride. The invention also includes methods for producing such microcoils.

Abstract: Dual glass fibers can be processed into coherent webs and felts by first blending the dual glass fibers with an equal or greater amount of uncrimped fibers. Optionally, other crimped fibers can be added without significant impact on processibility.

Abstract: Fire retardant and heat resistant yarns, fabrics, felts and other fibrous blends which incorporate high amounts of oxidized polyacrylonitrile fibers. Such yarns, fabrics, felts and other fibrous blends have a superior LOI, TPP and continuous operating temperature compared to conventional fire retardant fabrics. The yarns, fabrics, felts and other fibrous blends are also more soft and supple, and are therefore more comfortable to wear, compared to conventional fire retardant fabrics. The yarns, fabrics, felts and other fibrous blends incorporate up to 99.9% oxidized polyacrylonitrile fibers, together with at least one additional fiber, such as p-aramid, in order to provide increased tensile strength and abrasion resistance of the inventive yarns, fabrics, felts and other fibrous blends. The yarns may be woven, knitted or otherwise assembled into a desired fabric.

Abstract: An object of the invention is to provide a shock absorber which can reduce damage to the member to collide therewith. The invention provides a shock absorber comprising a cushion structure of three-dimensional spring construction, which has a large void provided by a random curl or loop formed by hot extruding a thermoplastic resin to form a continuous strip and curling or looping the strip in a molten state to bring adjoining strip sections into interlocking contact with each other. In the invention, the cushion structure may be obtained by stacking a plurality of cushion structure members, each having high cushion performance and buckling resistance and a certain thickness, one upon another parallel in a thickness direction or rolling up one side of a cushion member with a given thickness. Then, the cushion structure is embedded in a foamed and hardened filler containing a hydratable, hydraulic binder while a part of the cushion structure is exposed on an shock-receiving surface.

Abstract: Fire retardant and heat resistant yarns, fabrics, felts and other fibrous blends which incorporate high amounts of oxidized polyacrylonitrile fibers. Such yarns, fabrics, felts and other fibrous blends have a superior LOI, TPP and continuous operating temperature, compared to conventional fire retardant fabrics. The yarns, fabrics, felts and other fibrous: blends are also more soft and supple, and are therefore more comfortable to wear, compared to conventional fire retardant fabrics. The yarns, fabrics, felts and other fibrous blends incorporate up to 99.9% oxidized polyacrylonitrile fibers, together with at least one additional fiber, such as p-aramid, in order to provide increased tensile strength and abrasion resistance of the inventive yarns, fabrics, felts and other fibrous blends. The yarns may be woven, knitted or otherwise assembled into a desired fabric.

Abstract: The present invention relates to a comfortable, cut resistant and abrasion resistant, composition composed of cotton, nylon, and p-aramid fibers and used primarily in the sheath for sheath/core yarns in protective apparel.

Abstract: A process for producing a filament assembly composed of a thermotropic liquid crystal polymer, which comprises melt extruding a thermotropic liquid crystal polymer through an orifice nozzle into a high-speed fluid to thereby hold filaments spun right under the spinning nozzle at a high temperature, so that the filaments are taken up at a high draft ratio by the frictional force of the high-speed fluid.

Abstract: Permanently crimped fibres produced by three-dimensional texturing, and a method for making same, are disclosed. The fibres are advantageously produced by spinning and optionally stretching a filament roving. The roving is then fed to a three-dimensional texturing station then to a cutting device for cutting the roving into fibres having a predetermined length. The resulting fibres have high bulkiness and enable the production of non-woven surfaces having a remarkable abrasiveness as well as carpets with enhanced wear properties.

Abstract: A sewing thread consists of from 70 to 95 percent by weight of lyocell fibre and from 5 to 30 percent by weight of at least one synthetic fibre such as polyester or polyamide. The sewing thread can be used for sewing garments, particularly those comprising a major proportion of cellulosic fibres, and can be dyed with a dyestuff for cellulose.

Abstract: A gel profile article comprising a multi-filament yarn carrier carrying an elongate body of gel which encloses more than 50%, preferably more than 75%, more preferably substantially all, of the perimeter of the carrier as viewed in transverse cross-section, wherein the carrier is at least partly composed of synthetic polymeric material, preferably polyester filaments (e.g. polyethylene terephthalate) or spun yarns of a co-mingled blend of polyacrylonitrile staple fibres and polyamide staple fibres ("baby wool"), the proportion of polyamide preferably being at least 30%, more preferably 40-60%, by weight of the said spun yarn(s). The gel is preferably melt-coated, especially pressure-extruded, around the carrier at a gel temperature less than the softening temperature of at least a component of the carrier, and the selected class of carrier materials enhances the processability, cohesion, and appearance of the resulting profile.

Abstract: A duct comprising a sealed inner tube (1) and a reinforcement (2) made of at least one strip wound in a spiral around a central axis (11) of the inner tube. The strip (10) is flat and includes at least one layer of longitudinal filamentary rovings (6) and means for assembling said filamentary rovings comprising a loosely woven weft yarn (7) and a bonding material (8) provided at least at the interface between said filamentary rovings and said weft yarn. The assembly means hold the longitudinal rovings together along the full length thereof and impart a compactness of at least 39% to said strip.

Abstract: A shoe press belt for papermaking comprises an endless first resin layer formed on a polished surface of a mandrel; a base fabric layer comprising a woven fabric leaf arranged over the entire outer periphery of the first resin layer, at least one of the sets of intersecting threads of the fabric leaf being high-strength threads extending axially along the mandrel; a bobbin layer comprising high-strength thread circumferentially wound in a spiral on the outer periphery of the base fabric layer; and an endless second resin layer on the outer periphery of the bobbin layer, the second resin layer being in contact with the first layer through the base fabric layer and the bobbin layer. The shoe press belt constructed in this manner exhibits high strength in the machine direction as well as in the cross machine direction.

Abstract: The present invention describes a polyoxaester copolymers containing amines and/or amido groups and blends thereof with other polymers that may be used to produce surgical devices such as sutures, sutures with attached needles, molded devices, and the like. The polyoxaesters copolymer of the present invention is formed from a first divalent repeating unit of formula IA:[--C(O)--R.sub.30 --C(O)--] IAa second divalent repeating unit of the formula IB:[O--C(O)--C(R.sub.1)(R.sub.2)--O--(R.sub.3)--O--C(R.sub.1)(R.sub.2)--C(O)-- ]Iand a third repeating unit of the formula:[--O--R.sub.12 --].sub.U, XVIand optionally a fourth repeating unit with a formula selected from the group consisting of:[--O--R.sub.4 --].sub.A, II[--O--R.sub.5 --C(O)--].sub.B, III([--O--R.sub.5 --C(O)].sub.P --O--).sub.L G XIand combinations thereof wherein R.sub.12 contains an internal amine or internal amide group.

Abstract: The invention relates to a method for thermally bonding dissimilar polymeric layers on a paper or paperboard substrate whereby the bonding strength between the dissimilar polymeric layers is substantially increased. The method utilizes a resin of the structureA--B--A'wherein each of A and A' is selected from a hydrocarbonous material which is melt compatible with one of the polymeric layers and B is a hydrocarbonous material having characteristics compatible with the other polymeric layer in order to modify the dissimilar polymeric materials in such a manner that there is an increased thermal bonding strength between the dissimilar polymeric materials.

Abstract: Yarns which are suitable for use in the warp of durable cotton/nylon clothing fabrics dyed in light shades with permanent antistatic properties are disclosed.

Abstract: A heat conductor used by being disposed between a heat sink and electronic parts mounted on a printed circuit board. The heat conductor is layered by a heat conductive layer, made of silicone gel with alumina as a heat conductive filler dispersed therein, and a potentially adhesive layer. The potentially adhesive layer consists of a hot melt layer, with alumina as a heat conductive filler dispersed therein, and a heat resistant film, to facilitate formation of the hot melt layer, adhered to the heat conductive layer on one face of the heat resistant film. The heat conductor is set on the electronic parts so that the potentially adhesive layer abuts them, and is made to adhere to the electronic parts due to heating by means of reflow soldering to reach the phase change temperature of the adhesive.

Abstract: A reshapable insulation assembly and a method of using such insulation assembly are provided. An insulation assembly of the invention of a type useful in the insulation of buildings includes a conformable mineral fiber batt extending in a first direction, wherein the batt has a perimeter in a cross-section that is substantially perpendicular to the first direction, and an exterior layer extending in the first direction and overlying the perimeter of the batt, wherein the exterior layer has a perimeter in the cross-section that is substantially greater than the perimeter of the batt. The exterior layer thereby loosely encapsulates the batt, whereby compression of the insulation assembly urges the assembly into a new shape with different dimensions in the cross-section.

Abstract: A lightweight, low permeability liner for graphite epoxy composite compressed gas storage vessels. The liner is composed of polymers that may or may not be coated with a thin layer of a low permeability material, such as silver, gold, or aluminum, deposited on a thin polymeric layer or substrate which is formed into a closed bladder using torispherical or near torispherical end caps, with or without bosses therein, about which a high strength to weight material, such as graphite epoxy composite shell, is formed to withstand the storage pressure forces. The polymeric substrate may be laminated on one or both sides with additional layers of polymeric film. The liner may be formed to a desired configuration using a dissolvable mandrel or by inflation techniques and the edges of the film seamed by heat sealing.

Abstract: Fabrics containing melamine fibers are rendered more comfortable by carding the melamine fibers under vacuum so as to exhibit a narrower fiber diameter distribution (.delta..sub.d) and/or a narrower staple length distribution (.delta..sub.1) as compared to melamine fibers which are carded in the absence of vacuum. In addition, more comfortable melamine fiber-containing yarns are produced by spinning the staple fiber at a lower twist multiplier (TM) as compared to conventional melamine fiber yarns. Most preferably, the melamine fiber-containing fabrics and yarns will be blended with at least one other type of synthetic fibers, such as aramid fibers.

Abstract: Dual glass fibers can be processed into coherent webs and felts by first blending the dual glass fibers with an equal or greater amount of uncrimped fibers. Optionally, other crimped fibers can be added without significant impact on processibility.

Abstract: A fiber-reinforced article comprises a tubular body and a plurality of fiber braids for reinforcing the tubular body. The fiber braids have a first section parallel to the axis of the tubular body, and a second section forming an angle with the axis of the tubular body. The second sections of the fiber braids form a network capable of enhancing the resistance of the article to flexure and torsion.

Abstract: Oriented microfibers and processes for making them are disclosed, together with blends of such microfibers with other fibers such as crimped staple fibers and non-oriented microfibers.

Abstract: A filter includes a center layer of carbon cloth interposed between two layers of filter material whose edges are welded together to provide not only a filter edge substantially free of carbon particles, but also an effective barrier to the migration of carbon particles from the filter's interior to its exterior. A filter pouch, encapsulating the carbon filter, includes a layered structure welded together proximate its edges. The filter pouch is also suitable for use with a desiccant filter.

Abstract: A structural article comprises a substrate having an ionic charge which is coated with a coating having essentially the same ionic charge. The coating consists essentially of a filler material and a binder material. The substrate is preferably fiberglass, the filler is selected from the group consisting of fly ash, charged calcium carbonate, ceramic microspheres and mixtures thereof and the binder material is preferably acrylic latex. The substrate is preferably bonded together using a mixture of urea formaldehyde and standard acrylic. In a preferred embodiment, the coating comprises nearly 85% of the structural article and a filler which is approximately 50% fly ash and 50% calcium carbonate comprises approximately 85% to 95% of the coating.

Abstract: The present invention discloses a method a method of making a material for thermal cores and the material so made. In particular, the present invention disclose a method including the steps of applying thermally conductive particles over at least a portion of a fiber layer, providing another fiber layer upon the fiber layer, and repeating the above steps as desired. In another aspect of the present invention is disclosed a method of making a thermally conductive material including applying thermally conductive particles upon at least a portion of a fiber prepreg layer, providing another fiber prepreg layer upon the fiber layer, repeating the above steps as desired, and bonding the fiber prepreg layers, including the thermally conductive particles, together. The material in accordance with the present invention includes a plurality of layers made of thermally conductive fibers bonded by a resin, and a plurality of interposed layers of resin having a high concentration of high conductivity particles therein.

Abstract: Apparel having thermal insulation containing a corrugated nonwoven web and a means for retaining the shape of a corrugated web. The shape-retaining means is not coextensive with the corrugated nonwoven web and is secured to the valleys of the corrugations. The corrugated nonwoven web has a solidity of 0.1 or less and contains microfiber and crimped staple fibers that have a percent crimp of at least 15 percent.

Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.

Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.

Abstract: The invention relates to the field of composite brake disks formed from fibrous structures. A brake disk according to the invention comprises an annular fibrous structure having two opposing generally planar faces and a binding matrix permeating the annular fibrous structure. Two outer portions are adjacent the planar faces, and an inner portion is disposed between the two outer portions. The two outer portions have lesser tensile strength parallel to the planar faces and greater resistance to wear than the inner portion.

Abstract: Lightweight and strong electromagnetic interference (EMI) shielding and electrostatic discharge (ESD) reinforced degradable polymer and monomer material and plastic enclosure materials are provided for electronic devices and EMI shielded rooms. A degradable polymer or monomer (polylactic acid, starch and polycaprolactone, cellulose esters, zein, modified lesquerell and soybean oils, and glucaric acid) contain an EMIS/ESD additive of iron coated fibers, iron-carbone (Martensites), iron-nickel coated carbon fibers, stainless-steel fibers, aluminum fibers, conductive flakes, and conductive powders. Intrinsic conductive polymers such as polyparaphenylene, polyacetylene, polyanaline, polyquinoline and polythiophene are also used. By combining the degradable polymer/monomer and one or more of the additives, the enclosures meet the U.S. government requirements for electromagnetic interference (EMI) shielding and electrostatic discharge (ESD) on both consumer electronics and military application.

Abstract: A continuous reinforced composite material, including a first sheet with at least two polymer layers and a first fabric layer operatively coupled therebetween. The first sheet having at least one border where at least some of the fibers of the first fabric layer are continuous thereby having no free ends at the border. The composite material further includes a second sheet with at least two polymer layers with a second fabric layer operatively coupled therebetween. The second sheet having at least one border where at least some of the fibers of the second fabric layer are continuous thereby having no free ends at the border. The composite material further includes a seam wherein the borders of the first sheet and second sheet overlap and are operatively coupled to one another.

Abstract: A sampler device having an upper compartment layer; a lower compartment layer; a seal attaching the upper compartment layer to the lower compartment layer, wherein the upper and lower compartment layers and the seal form a compartment or compartments, for containing sample material; and a reinforcement layer for protecting the compartment. The present invention also relates to an easy, inexpensive and reliable method of packaging sample material.

Abstract: A tube which is normally in a collapsed position and which has an inner layer, suitably of felt. The free end of the tube is pulled apart and a pool of resin is located within the tube. Opposed driven rollers then pull the free end of the tube to assist in the dispersion of the resin in the felt. To assist in the resin impregnating the felt a vacuum is applied to urge the felt on either side of the collapsed tube so that the sides are more towards each other in the region of the pool of resin. In order for the vacuum to be able to be applied in the region of the pool of resin the vacuum is applied to the trailing end of the tube and an insert comprising a strip of material that is less prone to collapse than the felt of the tube is located along the inside of the felt.

Abstract: Cotton/nylon fiber blends have been discovered which are suitable for use in the warp yarns of durable fabrics dyed in light shades with permanent antistatic properties.

Abstract: A composite component is provided having at least one felt layer as reinforcement when used for crash and/or noise management applications, and preferably also including at least one reinforcement fiber layer. At least one of the reinforcement layers, preferably a felt layer, may be formed into a preform which is placed into a mold of suitable shape to form the component, along with the other reinforcement layers, with a resin/polymer being injected into the mold and then cured to form the composite component.

Abstract: As a paper-made stampable sheet having a high rigidity and, if necessary, improved adhesiveness and non-permeability and a light weight stampable sheet shaped body made from this sheet and a method of producing the same, there are proposed a paper-made stampable sheet obtained by paper-making a mixture of thermoplastic resin and reinforcing fibers to obtain a sheet-like web, piling a thermoplastic resin film of a single layer or multi layer or an organic fiber nonwoven fabric having at least one excellent property selected from rigidity, non-permeability and adhesiveness on at least one-side surface of the sheet-like web in accordance with use purpose, compressing them under heating above a melting point of the thermoplastic resin constituting the web, cooling and solidifying at a compressed state as well as a light weight stampable sheet shaped body made from this sheet and a method of producing the same.

Abstract: Disclosed herein is an oil application roll for electrophotograph fixation, which comprises a roll base, an oil holder provided on the roll base, and a porous fluororesin surface layer provided on the oil holder. The porous fluororesin surface layer has a maximum pore diameter of less than 0.1 .mu.m, an air permeability of 500 to 6000 s/100 cc, and a surface roughness of less than Ra 0.5 .mu.m. There is also provided a method of fabricating an oil application roll for electrophotograph fixation, which comprises the steps of (a) providing an oil holder on a roll base, (b) mounting a cylindrical film consisting of porous fluororesin having a thermal shrinkage of more than 30% onto the oil holder to obtain a roll body, and (c) heating the roll body so that the oil holder is covered with the cylindrical film. The cylindrical film consisting of porous fluororesin has a maximum pore diameter of less than 0.1 .mu.

Abstract: A process of preparing new down-like clusters employs a method of point-bonding thermoplastic cut fibers in a stack of webs of carded fibers or continuous filaments in a tow, and then cutting and separating the resulting clusters which have an entirely different structure that is refluffable. Ultrasonic bonding has worked well as the bonding method, but other methods may prove useful.

Abstract: The present invention describes a prepolymer of aliphatic polyoxaesters containing amines and/or amido groups having polymerizable end groups that may be used to produce surgical devices such as sutures, sutures with attached needles, molded devices, and the like.

Abstract: A transport and support means for heavy, high-temperature articles (5) which includes:(a) a flexible support base made of at least one weft woven fabric, one or more ply, using rigid, synthetic monofilaments with a diameter of between 0.1 and 1.0 mm and warp woven using parallel, twisted or braided synthetic multifilaments. The aforementioned mono and multifilaments have a heat resistance of at least 150.degree. C. and the aforementioned base has been treated with a silicon rubber of a heat resistant vulcanised resin:(b) a veil or layer (4) of synthetic, staple, heat-resistant fibres needles on at least one surface of the flexible support base.The transport and support means is thermostable and compact having been pressed at a temperature of 150.degree.-260.degree. C. and at a pressure of between 5 and 50 kg/cm.sup.2.

Abstract: Conduit liners and methods for their construction and use are provided. The liners include a first flexible layer mechanically bonded to at least one glass-containing layer and folded to form a tubular laminate. The laminate can be penetrable by resinous liquid capable of setting the form of substantially continuous matrix within the laminate following the expansion of the laminate within a conduit. In preferred versions of the liner, multiple glass layers are provided on the inner and outer diameter of the construction with a polyester core so as to meet minimum thickness requirements for vibration resistance under American in situ pipe vibration resistance codes.

Abstract: An enclosure for electronic modules, comprising walls made of composite material including conductive fibers for shielding the enclosure interior from electromagnetic radiation, and means for securely mounting at least one module inside the enclosure with a fastener means, the mounting means comprising composite material.

Abstract: Fire-retardant barrier structures. The fire-retardant barrier structures are useful for protecting military personnel and equipment from both fire and chemical and/or biological agents. The fire-retardant barriers are multilayer structures having desirable flammability characteristics and resistance to nuclear, chemical and/or biological agents. The preferred barriers also possess favorable durability properties and are printable.

Abstract: A hose useful for handling low temperature fluids such as refrigerants is disclosed, which exhibits excellent resistance to ozone and moisture permeation. A cover or outermost tube of the hose is formed from a vulcanizate of a rubber composition comprising a first copolymer rubber having an isobutylene unit and a p-halogenated methylstyrene unit and/or a second copolymer rubber having an isobutylene unit, a p-halogenated methylstyrene unit and a p-methylstyrene unit.

Abstract: A tow of melt spun filaments and a method for treating such filaments to produce a tow of uniformly crimped filaments having a high initial modulus by heat setting and stuffer box crimping includes the steps of heat-setting the tow, spraying the hot-heat-set tow with an aqueous fiber finish to effect shocklike cooling of the tow, passing the sprayed tow to a pair of squeeze rolls in whose nip it is kneaded through using a defined nip pressure and squeezed off to a fiber finish pickup of 0.7 to 7% by weight of the tow weight, heating the squeezed-off moist tow on a heated multiroll arrangement in such a way that it leaves the multiroll arrangement with a moisture content of 0.5 to 5% by weight of the tow weight and a temperature of 40.degree. to 1000.degree. C., feeding the tow with this moisture content and this temperature to a crimping machine and crimping it.

Abstract: A lightweight, low permeability liner for graphite epoxy composite compressed gas storage vessels. The liner is composed of polymers that may or may not be coated with a thin layer of a low permeability material, such as silver, gold, or aluminum, deposited on a thin polymeric layer or substrate which is formed into a closed bladder using torispherical or near torispherical end caps, with or without bosses therein, about which a high strength to weight material, such as graphite epoxy composite shell, is formed to withstand the storage pressure forces. The polymeric substrate may be laminated on one or both sides with additional layers of polymeric film. The liner may be formed to a desired configuration using a dissolvable mandrel or by inflation techniques and the edges of the film seamed by heat sealing.

Abstract: The invention provides a process for producing a component of a plastics material which is strengthened and reinforced by a resin-impregnated fibrous material which adheres to a surface thereof The surface of the component is contacted with a fibrous material impregnated with a resin in a settable state, and setting of the resin is effected, while the fibrous material is caused to adhere to the surface of the component. The plastics component is a polyolefin material, and the surface is subjected to activation by oxyfluorination thereof prior to the contacting.

Abstract: A structural component is disclosed which includes first and second extrusions each consisting of a plurality of strengthening fibers. A third extrusion comprises a thermoplastic matrix that encapsulates the first and second extrusions. The three extrusions together define a non-planar cross sectional configuration of substantially transverse dimensions sufficient to provide component strength and stiffness. Also disclosed is an elongated structural component formed by extrusion consisting of a first extruded portion of a plurality of segments of strengthening fibers joined in a thermoplastic matrix and a second extruded portion comprising a thermoplastic matrix compatible with the first extruded portion. The first and second extruded portions together define a predetermined non-planar cross sectional configuration of substantially transverse dimensions sufficient to provide component strength and stiffness.