Abstract: 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 3) bicomponent filaments of both of said polymers having more than one interface between polymer components. This fiber, however, in spite of its composition of numerous filaments of differing structure provides a tow bundle having a desirable level of reversible crimp measured in a manner specific to the type of crimp designated.Also disclosed is a method for wet-spinning the novel fiber using a static mixing unit in conjunction with a spinnerette normally used for wet-spinning monocomponent filaments.

Abstract: This invention relates to fiber-reinforced composite resin pultrusion products of circular and noncircular cross-sectional contours, manufactured by impregnating fiber tows or rovings with a resin, drawing them into a die, and forming them into an article of predetermined size and shape, and then curing it, and relates also to a method for manufacturing the same.

Abstract: A steel cord for reinforcing rubber. It is made of three steel filaments all having different diameters from one another. The small-diameter and medium-diameter ones of the three filaments have internal stresses adapted to be released when the cord is cut at both ends thereof. Owing to these stresses, the diameter of the cord is adapted to increase after it is cut at both ends. At the same time, the medium-diameter and small-diameter filaments retract inwardly from the ends of the large-diameter and medium-diameter ones, respectively.

Abstract: A thermally stable metal coated carbonaceous fiber batting, fiber tow, yarn or fabric which maintains loft, has some degree of resiliency and some degree of stability in the presence of various concentrations of oxygen at elevated temperatures said fibers having a reversible deflection ratio of greater than 1.2:1 and an aspect ratio greater than 10:1.

Abstract: A melt-spinning process for producing self-crimping, nylon 66 carpet yarn at spinning speeds of, for example 4000 meters per minute is provided. The process utilizes polymer having a relative viscosity (RV) of at least 50 and containing a sufficient amount of a chain branching agent to prevent broken filaments and to provide yarn having good luster.

Abstract: The invention resides in a nonlinear heat set aromatic polyamide fiber having a reversible deflection of greater than 1.2:1 at ambient temperatures, an aspect ratio of greater than 10:1, and a bending strain value less than 50%, and the method of preparing said fiber.

Abstract: A thermally stable ceramic coated carbonaceous fiber batting, fiber tow, yarn or fabric which maintains loft, has some degree of resiliency and some degree of stability in the presence of various concentrations of oxygen at elevated temperatures said fibers having a reversible deflection ratio of greater than 1.2:1 and an aspect ratio greater than 10:1.

Abstract: Flame retarding and fire barrier structure comprising a blend of carbonaceous fibers and natural and/or synthetic polymeric fibers. The carbonaceous fibers are present in the blend in an amount of from 7.5 to 92.5 percent and have a carbon content of greater than 65 percent and a LOI value of greater than 40. The structure also contains carbonaceous particles or platelets.

Abstract: A thermally stable metal coated carbonaceous fiber batting, fiber tow, yarn or fabric which maintains loft, has some degree of resiliency and some degree of stability in the presence of various concentrations of oxygen at elevated temperatures, said fibers having a reversible deflection ratio of greater than 1.2:1 and an aspect ratio greater than 10:1.

Abstract: A non-linear fire retarding and fire blocking covering for a foam seat cushion structure comprising an intimate blend of a binder and 25-75% by weight of fibers comprising heat set carbonaceous fibers having a LOI value greater than 40, said carbonaceous fibers being derived from heat treated stabilized polymeric fibers or pitch based fibers.

Abstract: Rubberless tire bead assemblies are disclosed, containing either a single wire element or multiple wire elements wound about an axis to provide a plurality of convolutions of the single wire or multiple wire elements to provide the bead hoop and shape-retaining members engaging the bead hoop about the circumference of the bead hoop to retain the bead assembly in a planar configuration. Rubber tire bead assemblies having wire termination ends positioned internally or externally with respect to the bead assembly and methods of making these bead assemblies are disclosed.

Abstract: A plastic drain auger made from plastic, such as polypropylene or polybutylene, extruded to provide an elongated member having an outward appearance similar to a helical coil. Extrusion of the plastic produces a structure having improved torsional and tensile strength which is essential so the auger can withstand fairly severe forces created as it is pushed and pulled through a drain pipe. The use of a helical coil form for the auger provides the flexibility necessary for the auger to be rotated, twisted and contorted within a drain pipe system.

Abstract: Tubular, spheroidal, and helical lipid microstructures are individually clad with a metal coat deposited on the microstructures by an electroless plating bath. In metal cladding the microstructures, the surfaces of the lipid microstructures are sensitized by adsorption thereon of a catalytic precursor which enables metal from the electroless plating bath to deposit upon and adhere to the sensitized surface. The metal plate is electrically conductive and may also be magnetic. A composite material is produced by embedding the metal clad microstructures in a matrix of a polymer such as an epoxy or a polyurethane.

Abstract: A thermally stable ceramic and/or metal coated carbonaceous fiber batting, fiber tow, yarn or fabric which maintains loft, has some degree of resiliency and some degree of stability in the presence of various concentrations of oxygen at elevated temperatures.

Abstract: An insulation system and method utilizes multiple helically wound insulating tape windings wound on a wire. Each individual insulating tape winding is wound so that each wrap overlaps a specified area of the preceding wrap of the winding.

Abstract: Abrasive article comprising an open, lofty nonwoven web comprising helically crimped synthetic organic fibers. The article can optionally contain stuffer box crimped fibers and melt bondable fibers. The presence of helically crimped fibers brings about greater durability and greater capacity for absorbing debris.

Abstract: Flame retarding and fire barrier structure comprising a blend of carbonaceous fibers and natural and/or synthetic fibers. The carbonaceous fibers have a nitrogen content of 5 to 35%, an LOI value of greater than 40 and are derived from stabilized acrylic fibers.

Abstract: 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 value greater than 40 and the articles of apparel derived therefrom.

Abstract: The present invention is concerned with a composite material matrix of a synthetic or natural resin with a reinforcement of a multiplicity of lightweight, resilient shaped reforming elongatable, non-linear, non-flammable carbonaceous fibers. The fibers preferably have a sinusoidal or coil-like shape, a reversible deflection ratio of greater than 1.2:1 and an aspect ratio (1/d) greater than 10:1. The fiber-reinforced composite material of the present invention possess excellent impact resistance properties.

Abstract: A stretchable synthetic polymer composite filament useful for stretchable fabrics, comprises:(A) an axial filamentary constituent;(B) a plurality of composite lobe filamentary constituents consisting of protrudent filamentary segments (B1) outwardly protruding from the axial filamentary constituent (A) in different directions from each other and edge filamentary segments (B2) attached to outside ends of the protrudent filamentary segments (B1);the axial filamentary constituent (A) and the protrudent filamentary segments (B1) consisting essentially of a synthetic thermoplastic elastomer (a), andthe edge filamentary segments (B2) consisting essentially of at least one synthetic thermoplastic low elastic polymer (b),in which filament, when not under tension, the composite lobe filamentary constituents (B) are asymmetric with respect to at least one feature of the location thereof, and cross-sectional configurations and sizes of the protrudent and edge filamentary segments (B1 and B2), about the longitudinal axis

Abstract: A fiber product comprising a core of a flexible, non-flammable carbonaceous polymeric fibers having an aspect ratio greater than 10:1, and a non-electrically conductive fluorinated surface.

Abstract: A heat-adhesive composite fiber consisting of core portion and sheath portion, the core portion being of the side-by-side type composite structure comprising two core components of different polypropylene base polymers at a composite ratio of 1:2 to 2:1, one of the core components having a Q value, expressed in terms of the weight-average molecular weight/the number-average molecular weight, equal to or higher than 6 and the other having a Q value equal to or lower than 5, and the sheath portion meeting at least the requirements that it should comprise a sheath component of a polyethylene base polymer having a melting point lower by at least 20.degree. C. than the lower one of the melting points of the two core components, and it should cover the core portion in a proportion of 25 to 55% by weight based on the total weight of it and the core portion.

Abstract: The invention provides a non-flammable non-linear elongatable carbonaceous fiber having a reversible deflection of greater than 1.2:1 and an aspect ratio of greater than 10:1 which may be formed into a resilient structure and the method of preparing said fiber.

Abstract: The method relates to the production of a string (24) for a racket, particularly a tennis racket. The string is a known string, for example a gut string or a synthetic string. The conditioning of the string on a support (1), particularly a bobbin, is effected under a traction tension and the length of the string is kept constant. Thus, the elongation of the string under the traction tension effect when winding the string on the support (1) is conveniently between 5 and 15%. The stringing of the racket with the thus conditioned string (24) should be carried out in an interval of 60 minutes, but preferably 30 minutes, from the removal time of the string from its support (1). The relaxation of the string, i.e. the decrease of tension after the stringing of the racket, is considerably smaller with a string conditioned according to the invention than with a same string which has not been conditioned. Such relaxation reduction is particularly important with a polypropylene string.

Abstract: A fiber entanglement is provided which is characterized in that it is a three-dimensional entanglement comprising elastic fibers (A) each being a fine-denier fiber bundle or exhibiting porous fiber structure as seen on a fiber cross section with a number of irregularly-shaped pores extending in the fiber axis direction; nonshrinkable, nonelastic fibers (B); and shrinkable, nonelastic fibers (C); said fibers (A) are at least partially bonded or fused together at various points of contact with one another and, thereby, produce a taut condition; said nonshrinkable, nonelastic fibers (B) are folded several times over by means of the elastic fibers (A) and the shrinkable, nonelastic fibers (C). This fiber entanglement is useful as a base material for leather-like sheet materials.

Abstract: A coil comprising a carbon filament winding with fused particulate insulative coating therearound and method of producing such carbon filament coil.

Abstract: A filler material for cushions and covers, in particular with spherical fiber aggregates wherein individual cut fibers are intertwined, is described. The fiber aggregates are capable of forming connections with others parts of the filler material. The connection is burr-like and is releasable. This may be obtained, for example, by the individual fiber ends (3) which project from the surface of the otherwise spherical fiber aggregate (1). In this manner a filler material for cushions and covers is obtained, in which the fiber aggregates do not shift or slide excessively within a covering, in particular a pillow, so that an adequate and permanent support for the head of a person is provided.

Abstract: Weftless and single wire tire bead assemblies are disclosed where at least one of the termination ends of the weftless layer or of the single wire bead are mechanically deformed or heat treated. Tire bead assemblies are disclosed where a cushion or wedge means is positioned either between the termination end and the body of the bead assemblies are positioned adjacent the termination ends and the body of the bead assembly.

Abstract: A spherical fiber aggregate having an inner core and outer covering, in particular as a filler material for cushions and covers wherein individual filaments or fibers are intertwined, is characterized in that the core of the fiber aggregate contains filaments or fibers different from those of the covering. In this manner spherical fiber aggregates are created, which combine different properties, and in particular are capable of absorbing humidity when used as a filler material, and therefore contain natural fibers, while on the other hand they do not lose their down-like properties, such as high bulk, compressive elasticity, softness, thermal insulation ability, light weight and ready adaptation to the body to be covered.

Abstract: There is described an electroconductive tow or yarn, made from continuous filaments or staple fibers yarns, prepared from stabilized petroleum pitch, coal tar pitch or a synthetic fiber forming material which on at least partial carbonization is electroconductive, for example, polyacrylonitrile, are formed into coil-like fibers or filaments by winding the tow or yarn on a mandrel, but preferably by knitting the tow or yarn into a cloth, and heat treating the so formed tow or yarn to a carbonizing temperature (450.degree. C. to about 1500.degree. C.) to set a coilure (a non-textile crimp) therein as well as electroconductance thereto, and incorporating the coilure structure into scrim yarns, scrim capcoats, composites with tuft-lock components as well as incorporation into the carpet yarns, to provide an anti-static property to the finished carpet.

Abstract: A method and apparatus for forming reinforcing fibers for composites. The fibers comprise bundles of non-crystalline glass or carbon fibers formed in a helix and cut to small lengths for inclusion in molded composites to render the composites substantially isotropic.

Abstract: This invention relates to a process for manufacturing a turbine or compressor wheel made of composite material, comprising the following steps of:making at least two helicoidal textures each formed by weaving a spiral band with helicoidal warp yarns and weft yarns which are substantially perpendicular to the axis of the texture,assembling the helicoidal textures by "screwing" them in each other and stacking them by mutually approaching their interlaced turns, anddensifying the stack thus made to obtain a preform of a turbine or compressor wheel.

Abstract: A process of forming a gasket with a minimal production of waste material is disclosed. A suitable fiber is mixed with a binder in water to form a fiber-binder aqueous mixture. The mixture is then deposited on a screen in a predetermined pattern to form a gasket preform with apertures in predetermined locations therein. The gasket preform is subsequently dewatered and cured. The gasket preform can be provided with differential thicknesses and preformed inserts to impart, respectively, selective control of the sealing capability of and reinforcement to the resulting gasket.

Abstract: A composite structure comprises at least one ply comprising approximately parallel unidirected twines comprising helically-configured matrix-impregnated continuous strands of filament reinforcements to provide a flanged composite cantilever spring which serves as the principal constituent of a coupling structure. An interior ply of a coupling structure body member comprises unidirected longitudinal twines configured at a body member extremity to provide a flange member connected to a cantilever spring. An exterior ply is disposed transversely of and superimposed upon the interior ply to provide the cantilever spring hinge line. The composite cantilever spring can be constructed to deflect about either a straight or curved hinge line. A preferred tubular form of the coupling structure comprises at least one end configured as a polygonal array of flanged cantilever springs which serve as the socket end of a spring-lock coupling used to connect mating flanged spigot-end structures.

Abstract: A reinforcing structure for elastomeric articles, having 2-5 filaments. The filaments are arranged in parallel and have a common plane passing through them all. The wire has a diameter smaller than that of the filaments. The wire wraps the filaments together so that a relative position of the filaments with respect to each other and also bending rigidities in predetermined directions do not vary over a full length of the wrapped filament structure.

Abstract: Metal part coated with a cured coating composition comprising (a) an acid aqueous solution of phosphate ions and ions of chromate or molybdate, (b) an acid-stable amorphous silica and (c) a non-ionic surfactant wherein the silica is crosslinked with the surfactant.

Abstract: A method of making metallic cable (10) suitable for reinforcing elastomeric articles which comprises two or more substantially identical helical formed filaments (11, 12, 13) nested together and secured to one another by axially spaced apart applications of an adhesive substance.

Abstract: A segmented geometric structure that when rotated serves as a functional mood-setting device or simply as a static or rotatable object d'art. The structure is comprised of a plurality of spirally formed curvilinear segments that are joined at their respective top and bottom to form a single rigid structure. The structure may take the form of a spheroid, ellipsoid or any other three-dimensional geometric form amenable to a segmented construction. The structure is suspended by means of a suspension line that is attached to an elevated support or a shaft may be attached to either the top or bottom end of the structure. The other end of the shaft is attached to a reversible electrical motor that is housed within a mounting base. When the structure is rotated, either manually or by the motor, in a clockwise direction the segments appear to move spirally upwards conversely when rotated in a counter clockwise direction the segments appear to move spirally downward.

Abstract: Polyamide conjugate filaments are prepared by a spinstretch process wherein two polyamides (e.g. two nylon 66 polymers) having different terminal velocity distances are melt spun at a spinning speed of at least 1829 mpm to form filaments in which the polymers are arranged in an eccentric configuration along the length of the filaments. The filaments are then stretched in-line at a stretch ratio greater than 1.0 prior to their being collected with the processing conditions and polyamides being selected to provide filaments having a high level of high-load crimp and a low level of boiling water shrinkage. The filaments are particularly useful in the construction of stretch garments and, especially, ladies' leg hose and pantyhose.

Abstract: Filiform element usable for reinforcing moldable materials particularly concrete, said filiform element having crimpings or corrugations distributed over its length, showing the following features: maximum wave amplitude of the longitudinal axis: 1 to 1.5 d; maximum wave-length: 10 d; minimum wave-length: 7 d; maximum fiber length: 65 d; minimum fiber length: 45 d; fiber diameter (d): max. 1.2 mm; nature of the steel: ultimate tensile strength higher than 110 kg/mm.sup.2 and lower than 150 kg/mm.sup.2.

Abstract: Double helices each comprising two helix elements made from plastic wire with the longitudinal axes of the two helix elements extending in parallel and with the windings of the two helix elements intertwined, the double helices being formed by winding two plastic wires in parallel and without twist on a mandrel and being used to assemble a spiral belt by interengaging in zipper fashion a multiplicity of helices via meshing the windings of one helix with the windings of the next helix, and by inserting a pintle wire into the passage formed by the overlapping windings.

Abstract: A process for producing dried alginate fibre material, in which wet spun insoluble alginate fibres are overlaid in a sheet onto a more slowly moving liquid permeable conveyor and are subjected to a dewatering drying operation, includes special treatment to eliminate or reduce bonding of the overlaid fibres at their points of contact or intersection. This is accomplished preferably by passing the dried sheet or web that is produced through successive pairs of rollers driven at different speeds so as to pull the individual fibres longitudinally and break any existing inter-fibre bonds. Also, prior to and during initial drying of the sheet of wet fibres application thereto of external mechanical forces is avoided and alcohol exchange to remove water may be used. The rollers may advantageously produce a stretch-breaking effect. The alginate fibre material produced is particularly suitable for making up medical or surgical dressings and the like.

Abstract: A filling material composed of an assembly or assemblies of looped fibers which are bonded together at one point. The filling material of the present invention can be used instead of down and feather as fillings of pillows, cushions, quilts et al.

Abstract: Prestressing elements having a two-layer plastics covering, the inner layer being moldable, storage-stable at room temperature and thermally curable, and the outer layer consisting of a radiation-cured plastics material, are excellently suitable for producing supporting structural elements, particularly concrete supporting structures and rock bracings.

Abstract: Reinforcing elements comprise a plurality of elongated metallic members, with substantially rectangular cross sections, having parallel longitudinal axes and at least one of the wide sides of each being contiguous with a wide side of another of said elongated metallic members. A single wrap member is helically disposed around the elongated metallic members such that each turn of the wrap filament member is spaced apart from the next adjacent turns of the wrap member. Elastomeric articles reinforced with these reinforcing elements are also disclosed.

Abstract: Reinforcing elements comprise a plurality of elongated metallic members, with substantially rectangular cross sections, having parallel longitudinal axes and at least one of the wide sides of each being contiguous with a wide side of another of said elongated metallic members. A single wrap member is helically disposed around the elongated metallic members such that each turn of the wrap filament member is spaced apart from the next adjacent turns of the wrap member. Elastomeric articles reinforced with these reinforcing elements are also disclosed.

Abstract: A crimpable nylon bicomponent filament have a poly(hexamethylene adipamide) sheath and an eccentrically located core of a terpolymer of hexamethylene adipamide, hexamethylene isophthalamide and hexamethylene terephthalamide units in defined proportions.

Abstract: A composite elongated-shaped product is made from two or more synthetic polymer components. The product may be a split-fiber, thread, film or a ribbon-shaped one. One of the polymer components is polypropylene which forms more than 50 percent by weight of the product. At least one other polymer component is distributed in the polypropylene. The composite product contains 65 to 95 percent by weight of polypropylene and 35 to 5 percent by weight of one or more polyesters and/or polyamides. The polyesters are built up of structural units derived from one or more dicarboxylic acids, at least 70 mole % of which are from terephthalic acid. Other structural units are derived from one or more low-molecular weight diols, at least 70 mole % of which are from a diol having the formula HO(CH.sub.2).sub.n OH, where n is a whole number and may be 2, 4 or 6. The polyamides are formed by polycondensation of caprolactam or adipic acid and hexamethylene-1,6-diamine.

Abstract: 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 self-crimps upon heating. In some embodiments, the yarn has a variable denier.

Abstract: Disclosed is a UV-curable coating composition and method of preparing it, a method of coating a conductor with it, and the resulting coated conductor. The composition comprises about 20 to about 40% by weight of an acrylated epoxy which is the reaction product of an epoxy resin and an acrylate adduct. The acrylate adduct is the reaction product of an acrylate which may be either 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate or mixture thereof, and either an anhydride or a diisocyanate. The anhydride may be phthalic anhydride, maleic anhydride, trimellitic anhydride, or mixtures thereof. The diisocyanate can be toluene diisocyanate, 4,4'-diisocyanato diphenyl methane, or mixtures thereof. The composition also includes about 4 to about 15% by weight of an acrylated blocked isocyanate which is the reaction product of caprolactam and an acrylated isocyanate.