Abstract: A method and apparatus are provided for forming a fabric, suitable for mailing a finished composite product, using one or more composite strands. One embodiment of the apparatus comprises at least one bushing for forming reinforcing fibers; supply equipment for supplying matrix fibers; at least one applicator for applying bonding size (i.e., bonding chemical treatment) to the fibers; a gathering mechanism for gathering the treated fibers into at least one composite strand; a pulling mechanism for pulling the at least one composite strand; and a fabric forming mechanism for forming a fabric using the at least one composite strand.

Abstract: Continuous process for producing unidirectionally reinforced composite materials by impregnating a continuous reinforcing fiber strand with a thermoplastic matrix in an impregnating bath containing a dispersion of a thermoplastic powder by measuring the width of the strand leaving the impregnating bath and using this measured value for regulating the polymer concentration in the impregnating bath.

Abstract: An apparatus for manufacturing vehicle frame components using composite fiber pultrusion techniques includes one or more sources of a fibrous material. A bath or similar structure is provided for applying a resin material to the fibrous materials from the sources. Following the application of the resin, the fibrous materials are then pulled through a die. The die is formed having an opening therethrough which corresponds in shape to the desired cross sectional shape of the vehicle frame component to be manufactured. As the fibrous materials are pulled through the die, they conform to the shape of the opening formed therethrough. Because of the resin applied thereto, the fibrous materials adhere to one another to form a pultrusion which retains the shape of the opening formed through the die. The formed pultrusion is then pulled through a curing oven which heats the resin to a predetermined curing temperature, causing it to harden a rigid condition.

Abstract: The invention relates to a method of making a composite laminate comprising the steps of providing unidirectionally oriented parallel fibres (UD filaments) (3) with a resin matrix to form a composite UD layer and laminating a plurality of UD layers to form a UD crossply laminate (18). In the method of the invention, the UD filaments are impregnated with a melt of a resin which in the uncured form solidifies below a certain temperature (Tm). Thereupon the UD filaments-containing resin is cooled to a temperature below Tm to produce the composite UD layer. The produced composite UD layer is irreversibly cured before or after lamination. Notably latent curing resins are suitable. The impregnation is preferably conducted by coating a process belt (8) with solid resin (6), laying the UD filaments onto the resin, and heating the resin so as to form the resin melt. The heating of the resin is preferably conducted by means of IR irradiation (11).

Abstract: A method for the production of a completely impregnated composite material having the surface thereof coated with a thermosetting resin and essentially consisting of a thermoplastic resin matrix including minute voids filled with a thermosetting resin and reinforcing fibers, which method comprises setting in place a roller and a collecting section disposed in the direction of the rotation of the roller, rotating the roller, feeding thermoplastic resin fibers and reinforcing fibers to the roller, causing the roller to throw a uniform mixture of the two types of fibers onto the collecting section, thereby forming a composite mat of the uniform mixture on the collecting section, then thermally compressing the composite mat and further solidifying the compressed composite mat by cooling and forming a composite material of the shape of a plate, further heating the composite material, thereby melting and expanding the thermoplastic resin forming the matrix, then cooling the expanded composite material, thereby form

Abstract: Method and apparatus for preparing beverage transmission lines to form bundles that convey a drink product to a remote location includes the step of providing a plurality of spools that include a wound length of beverage conveying tubing each with a free end portion and unwinding the beverage tube from each spool by advancing the free end portion. The free end portions are transmitted through a plurality of templates that gather the tubing together. The tubing is then choked into a tight bundle while being continuously advanced at a set desired speed and along a generally linear path. The bundle is then spirally wrapped as it is being transported. The spiral wrapping can be achieved with a rotating spool that surrounds the bundle.

Abstract: An apparatus and process for obtaining the desired outside diameter for a tension-resistant core element, which includes assembling mixed filaments containing glass fibers and thermoplastic fibers, heating the bundle of mixed filaments to melt the thermoplastic fibers to form a matrix with the glass fibers embedded therein, then extruding an outer covering of the desired outside diameter for the core element onto the bundle. If desired, the melted bundle can be passed through a shaping device, which is preferably heated prior to extruding the coating thereon, and, subsequent to extruding, the extruded coating and bundle are cooled in the cooling device before being wound on a take-up drum or entering a stranding device for having communication elements stranded thereon.

Abstract: An aromatic polyether contains within its chain the repeat units--Ph--CO--Ph-- I--?Ph--SO.sub.2 --Ph!n-- IIat a molar ratio I/II in the range 98:2 to 80:20 where Ph represents paraphenylene; the repeat units are linked through ether oxygen; and n is at least 1.1.It can be made by reacting together hydroxy and halogeno aromatic compounds corresponding to units I and II and to any minor units that are to be present. The reactants can be provided at least partly by a polymer containing an ether-linked succession of the units.

Abstract: A method of continuously draw-molding a fiber reinforced plastic rod formed with a spiral groove includes the steps of arranging in parallel a plurality of reinforcing fibers under tension, impregnating an unhardened thermosetting resin in the reinforcing fibers with tension being applied to the reinforcing fibers, winding a tape having a resin impregnable property and an expandible and contractible property around a fiber bundle composed of the thermosetting resin impregnated reinforcing fibers in a spiral fashion with a winding angle being substantially equal to an angle of the spiral groove with respect to an axial direction of a rod to be molded, passing the fiber bundle with the wound tape in a heating mold provided with a hole having a cross section substantially equal to that of the rod to be molded to heat and harden the thermosetting resin, and taking up the tape thereafter.

Abstract: A process of making a fiber-reinforced polymeric material comprises sliding a fiber bundle over an arcuate support surface (2) in the line of the arc, and injecting into the bundle a molten or liquid polymer through a plurality of slots (4) in the surface, each slot being transverse to the bundle. The process allows effective impregnation of materials, at relatively high production speed and low capital costs.

Abstract: A method of manufacturing a fiber reinforced article. A first fiber reinforcing layer is impregnated with an initiator. A second fiber reinforcing layer is impregnated with a cyclic resin. The first and second reinforcing layers are brought into contact with one another. Heat is applied to the first and second reinforcing layers and causing the initiator to react with the cyclic resin. The initiator causes the ring-like structure on the cyclic resin to open. The open rings polymerize, crystallize and often cross-link with one another. The polymerization and cross-linking reaction forms a solid polymer about the first and second reinforcement layers. The polymer solidifies and forms an integral fiber reinforced article.

Abstract: To produce a pultrusion which can be machined without undue strength loss bidirectional woven fiber fabric is modified to be pultrudable into a high shear strength composite member. In a preferred form of the invention the fabric is pleated in the pultrusion process to create an endless wall of stacked switch-back pleated layers which defines a box beam wall in one example, and the shaft of a bolt in another. Products produced by this process have improved isotonic strength qualities over currently produced pultrusions, which are limited to unidirectional fibers, continuous fiber mats, or alternating layers of non-woven 0.degree. and 90.degree. cloth and do not have the shear strength inherent in the pleated configuration.

Abstract: Long fiber-reinforced thermoplastic resin compositions are made by passing a loosened continuous fiber bundle web through a coating die having a resin discharge outlet and coating at least one side of upper and lower sides of the web with a thermoplastic resin melt discharged from the resin discharge outlet. The web is pulled from the coating die in a generally horizontal downstream running direction. While the resin-coated continues fiber bundle web is being pulled generally horizontally the resin-coated continuous fiber bundle web is brought into contact with a plurality of upper and lower bars located downstream and outside of the coating die and arranged such that respective contact positions between web and the bars are generally in a horizontal plane, and such that the longitudinal axis of each of the bars is oriented transversely relative to the downstream running direction of the web. In such a manner, the web is impregnated with the resin melt to thereby form a fiber-reinforced composition.

Abstract: A method for performing resin injected pultrusion employing different resin materials is provided. The method comprises impregnating the interior layers of a pultrusion reinforcement pack with a first resin material, adding the exterior layers to form a pultrusion pack and impregnating the pack with a resin material substantially nonidentical to the first resin material.

Abstract: The invention relates to a method for producing a reinforcement in the form of a sheet for a composite component, the reinforcement including superposed plies of thread. In accordance with the method, straight portions of thread are arranged, for each ply, at least substantially in a parallel fashion with respect to each other and all the superposed plies are consolidated by using a thread passing through the plies. According to the invention, the superposed plies are laid down on a support, the superposed plies are compacted by mechanical pressure, and in order to preserve the state of compaction of the plies which is thus obtained, the thread for consolidating the plies is stitched, without knotting, through the plies down to at least the level of the surface of the support, the plies having, after compaction, a density of the portions of the thread constituting them which is sufficient to retain the consolidating thread by friction.

Abstract: A linear body disposing method capable of extending a large number of wires above a work efficiently provides a plurality of collector wires on a substrate coated with a photosensitive film. The plurality of collector wires are held at a predetermined interval therebetween before one end of the substrate. The plurality of held collector wires are drawn to the other end of the substrate simultaneously. The other end of each of said drawn collector wires is fixed on the substrate. Subsequently, while the collector wires are held at the one end of the substrate, one end of each of the collector wires is fixed to the one end of the substrate. Thereafter, the collector wires are cut.

Abstract: Improvements relating to composite materials. In a first aspect of the invention a distinctive and a less costly RTM preform is provided, along with a method of making it. In a second aspect of the invention, a distinctive preheating of an RTM preform provide enhanced surfaces on RTM composite articles.

Abstract: To produce fiber-reinforced composites, a continuous fiber strand is pulled through an agitated aqueous thermoplastic powder dispersion via deflectors. Following removal of the water phase the thermoplastic powder is heated and melted onto the fibers. Finally the fiber strand is impregnated with a thermoplastic melt by melt pultrusion.

Abstract: Discrete carbon or other electrically conductive fibers are added to a fluid formulation of settable resin in a bath, and a number of tows of non-conductive fibers, for example glass, are drawn through the bath, entraining and partly aligning the conductive fibers and being wetted by the resin. The tows are then bunched into a bundle, causing most of the conductive fibers and concentration zones to render the moulded product conductive to electrostatic charge.

Abstract: A fabric light control window covering in which fabric vanes are adhesively bonded between two sheer fabric sheets such that relative movement between the sheer fabric sheets in a direction perpendicular to the longitudinal direction of the fabric vanes changes the angle of the fabric vanes and, thus, controls the amount of light admitted through the shade. The vanes are bonded to the sheer fabric sheets in a manner which tends to bias the sheer fabric sheets together to the nonlight admitting position. Also, disclosed are methods and apparatus for manufacturing the above window covering. The method features linear application of adhesive to the vane material which provides for a uniform appearance in the finished product. A heat setting process and apparatus is disclosed in which the bonded layers of sheer fabrics and vanes are fed between belts over hot and cool surfaces, under uniform tension and pressure.

Abstract: A hollow composite rod manufactured in a pultrusion manufacturing process includes a hollow interior space that may be filled with a liquid, such as water or oil, and subsequently sealed to greatly increase the strength of a resultant rod assembly. The composite rod includes a high strength, pultruded fiber-resin jacket that, at each end, is molded about a reinforced insert to create a fluid-tight seal therebetween. Threaded access apertures are provided through either the reinforced inserts or the jacket itself, to permit the filling or draining of fluid relative to the hollow interior space. Reinforcing sleeves or caps may be molded over a portion of the jacket's exterior to improve the composite rod's resistance to cutting and chipping-type damage.

Abstract: A method for fabricating composite structures at a low-cost, moderate-to-high production rate. A first embodiment of the method includes employing a continuous press forming fabrication process. A second embodiment of the method includes employing a pultrusion process for obtaining composite structures. The methods include coating yarns with matrix material, weaving the yarn into fabric to produce a continuous fabric supply and feeding multiple layers of net-shaped fabrics having optimally oriented fibers into a debulking tool to form an undebulked preform. The continuous press forming fabrication process includes partially debulking the preform, cutting the partially debulked preform and debulking the partially debulked preform to form a net-shape. An electron-beam or similar technique then cures the structure. The pultrusion fabric process includes feeding the undebulked preform into a heated die and gradually debulking the undebulked preform.

Abstract: The invention relates to a method of manufacturing a composite laminate, preferably a cross-ply laminate, in which process unidirectionally oriented (UD) fibres (3) are provided with matrix material (7) and, together with a pre-formed non-flowing UD composite or cross-ply laminate, passed through a laminating zone (13) in layers of at least two different orientational directions. More particularly, the invention relates to the manufacture of composite material which is pre-eminently suited to be used as a supporting substrate for printed wire boards. The method according to the invention is directed in particular to the utilisation of a double belt press, both for making the preformed non-flowing UD composite and for the manufacture of the final laminate. The invention also comprises printed wire board (PWBs) and multilayer PWBs.

Abstract: Apparatus and method for manufacturing a resin structure reinforced with long fibers. A continuous fiber bundle is impregnated with a resin melt while the fiber bundle is being drawn continuously. Thereafter, the continuous resin-impregnated fiber bundle is shaped so as to have a cross-section of the intended final product. The shaped resin-impregnated fiber bundle is then cut at a downstream location. Shaping of the resin-impregnated fiber bundle is accomplished by a plurality of rolls, each having grooves formed on the outer periphery thereof which receive the continuous resin-impregnated fiber bundle. The grooves and the rolls are arranged such that the rolls are placed, in an alternating manner, at upper and lower positions with respect to the fiber bundle which is being drawn and such that the grooves of the rolls on the elevation plane perpendicular to the running direction of the fiber bundle forms a shape of the cross-section of the intended final product.

Abstract: A continuous process for manufacturing a coated fiber reinforced pultruded article or coated extrudate and the coating composition for use in this process. The coating composition includes an isocyanate resin, at least one active hydrogen-containing resin and at least one solvent having an evaporation rate equal to or less than about 0.5. The process and coating composition of the present invention produce fiber reinforced plastic articles having smooth, adherent surface coatings.

Abstract: An apparatus for forming reinforcing structural rebar comprising a core of a thermosetting resin containing reinforcing material and an outer of sheet molding compound is provided. The apparatus comprises layer reinforcing material supply, a thermosetting resin supply means, a shaping die, means for impregnating the reinforcing material the reinforcing material with resin, means for pulling the reinforcing material through the shaping die to form the core of the thermosetting resin containing reinforcing material, sheet molding compound supply, guide means for guiding the sheet molding compound onto the core, and mold means for molding the outer layer of sheet molding compound onto the core.

Abstract: A process for preparing uni-tape prepreg from polymer powder coated filamentary towpregs is provided. A plurality of polymer powder coated filamentary towpregs are provided. The towpregs are collimated so that each towpreg is parallel. A material is applied to each side of the towpreg to form a sandwich. The sandwich is heated to a temperature wherein the polymer flows and intimately contacts the filaments and pressure is repeatedly applied perpendicularly to the sandwich with a longitudinal oscillating action wherein the filaments move apart and the polymer wets the filaments forming a uni-tape prepreg. The uni-tape prepreg is subsequently cooled.

Abstract: A packing material having a resilient core and a uniform non-seamed exterior surface comprising a plurality of discrete compressible particles attached to the flexible core and to each other, the particles being compressed after attachment. The method comprises surrounding the flexible elongate core with a plurality of powder-like particles which together feed through a plurality of aligned pairs of feed groove rollers. The core, with the attached particles, wraps under tension around an arcuate sector of a cylinder or wheel passing between a pair of spaced-apart walls. A roller pushes against the core to compress the powder particles together and to bias the length of packing material into a spiral coil.

Abstract: The present invention provides a novel filament coating process. Useful filaments include high strength, reinforcing fiber such as fiberglass. By the process, a filament bundle is transversely spread and individual filaments are coated. In a particular application, pultruded rod may be advantageously made from the coated filament.

Abstract: The present invention relates to a pultrusion process for preparing fiber reinforced furan resin composites by drawing a plurality of continuous filaments through an impregnating bath of liquid furan to wet-out the filaments with the resin and a squeeze orifice for removal of excess resin and air, and continuously pulling the resin-impregnated filament through a pultrusion die to heat and cure the resin. The liquid furan resin contains a furfuryl alcohol prepolymer and a minor portion of an acid catalyst, and is maintained at a temperature of 15.degree.-35.degree. C. and has a viscosity of 500-3000 cps during the impregnating step. A postcuring treatment may be optionally employed to the pultruded fiber reinforced furan resin composites for improving their mechanical properties, which includes heating the pultruded composites at a temperature of 100.degree.-220.degree. C. for a period of 1-18 hours. Adding 1-15 wt % of mineral fillers may also improve the mechanical properties of the pultruded composites.

Abstract: A heated shoe and cooled pressure roller assembly for composite prepreg application is provided. The shoe assembly includes a heated forward contact surface having a curved pressure surface. The following cooled roller provides a continuous pressure to the thermoplastic while reducing the temperature to approximately 5.degree. C. below glass transition temperature. Electric heating coils inside the forward portion of the shoe heat a thermoplastic workpiece to approximately 100.degree. C. above the glass transition. Immediately following the heated contact surface, a cooled roller cools the work. The end sharpened shape of the heated shoe trailing edge tends to prevent slag buildup and maintain a uniform, relaxed stress fabrication.

Abstract: A fiber optic ribbon cable assembly has optical connector assemblies manufactured in line with the ribbon cable assembly so as to provide a fixed, lateral spacing of the optical fibers relative to each other within the connector assembly and has the remaining portion of the fiber optic ribbon cable manufactured within an arbitrary lateral spacing of the optical fibers relative to each other. A pair of adhesive tape layers are sandwiched around the optical fibers and the in-line optical connector assemblies. By having the connector assemblies manufactured in line with the fiber optic ribbon cable, resulting ribbon cable assembly is easier to manufacture, has a higher alignment accuracy, and is more cost effective than existing techniques for manufacturing ribbon cable assemblies.

Abstract: A thermoformable, fiber-reinforced composite material contains 5 to 70% by volume of unidirectionally aligned reinforcing fibers having individual filament diameters of 7 to 30 .mu.m, which are bonded by a matrix of a thermoplastic elastomer-modified polypropylene which essentially wets the entire surface of the individual filaments.The elastomer-modified polypropylene preferably consists of a mixture of polypropylene with thermoplastic ethylene-propylene-diene rubber (EPDM) and/or ethylenepropylene rubber (EPM). The reinforcing fibers preferably consist of glass.

Abstract: Elongate products are molded in a die from fiber reinforced plastics by drawing a bundle of tows through a bath of resin and between two portions of an open die, which is closed under high pressure, and heated to cure the resin. The die is opened and the product is then partly withdrawn lengthwise, to draw further wetted tows between the die portions, and the die is again closed, clamping the tail end of the already cured product which still projects into the die space, or clamping blocks at its downstream end. Cold clamping blocks also clamp the tows at the die upstream end. The products are subsequently severed externally of the die by cutter wheels.

Abstract: A method for producing a pultrusion product having a variable cross-section using a specially adapted temperature controllable pultrusion die includes the steps of pulling reinforcing fibers which have been impregnated with a heat curable thermosetting polymeric resin composition through a temperature controllable die, heating the temperature controllable die to a temperature sufficient to effect curing of the thermosetting resin, cooling the temperature controllable die to a temperature which is sufficiently low to prevent any significant curing of thermosetting resin passing through the pultrusion die, pulling the cured material and a predetermined length of uncured material from the die, reshaping the uncured material, and curing the reshaped material. The reshaping step can be used to provide off-sets, flanges, bosses and the like.

Abstract: An elongated pile article having a support strand for attachment to a plurality of yarn bundles, the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles placed one next to the other, and a method and apparatus for making the elongated pile article.

Abstract: A ballistic laminate structure in sheet form, which includes a first array of high performance, unidirectionally-oriented fiber bundles and a second array of high performance, unidirectionally-oriented fiber bundles cross-plied at an angle with respect to the first array of fiber bundles, and laminated to the first array of fiber bundles in the absence of adhesives or bonding agents. First and second thermoplastic films are bonded to outer surfaces of the laminated first and second arrays of unidirectional fiber bundles without penetration of the films into fiber bundles or through the laminate from one side to the other.

Abstract: A pultrusion apparatus and process for impregnation of multiple fiber tows with a thermoplastic resin wherein an impregnation vessel having an entrance and an exit end is provided with a fiber control insert formed of spaced cylindrical rings suspended therein, with a resin flow control device being suspended horizontally within the rings. A combined resin meter and profile die is attached to the impregnation vessel exit end with a cooling die connected thereto. A pulling mechanism pulls the fiber tows through melted resin contained within the impregnation vessel and into a stepped decreasing diameter passageway in the resin meter and profile die to remove excess resin and shape the impregnated fiber into a useful structure before it is cooled below the melting point of the resin by the cooling die. In one embodiment, a cut-off station is provided adjacent the pulling mechanism to cut the cooled impregnated fiber structure into the desired lengths.

Abstract: A structural member of fiber reinforced composite material suitable for secondary processing and a method of processing is described. The structural member before secondary processing is typically a multi-ply tube, rod, or sheet formed with an outer sheath of fiber reinforced thermoplastic material having a melting temperature t.sub.m1 and an inner core material, also fiber reinforced thermoplastic, having a melting temperature, t.sub.m2 lower than t.sub.m1. The member, prior to secondary processing, is thermoplastic. In a secondary process the member is heated to a temperature between t.sub.m1 and t.sub.m2, but sufficient to render the outer sheath malleable. The member is deformed to a desired geometry, such as a helix, and cooled to a hardened state.

Abstract: A process for making metallized plastic molding pellets comprising: first metallizing a laminated plastic sheet by sandwiching an electrically conductive metal foil in between two plastic films; secondly slicing the metallized laminated plastic sheet into a plurality of metallized plastic strips; thirdly wetting and binding the metallized plastic strips, which are radially arranged, with a thermoplastic resin matrix to form a metallized plastic bar by pultrusion processing; and finally cutting the pultruded metallized bar to obtain homogeneously metallized plastic pellets for making effective EMI shields.

Abstract: A continuous FRTP prepreg manufacturing apparatus comprises an extruder, a crosshead having a main body internally provided with a resin chamber for containing a molten thermoplastic resin extruded therein by the extruder and joined to the discharge end of the extruder, a cooling unit disposed outside and near the exit of the main body of the crosshead, and a winding unit for taking up a prepreg. A fiber bundle inlet unit and a fiber bundle outlet nozzle unit are provided respectively at one end and at the other end of the main body of the crosshead. Guide rollers and impregnating rollers are arranged within the main body of the crosshead so that a tension is applied to the fiber bundle during impregnation or so that the fiber bundle is expanded during impregnation and is condensed after impregnation.

Abstract: There is disclosed an apparatus and method for bonding a sheet material to an elongated base material, in which the sheet material is transferred by a transferring device towards the base material, and the sheet material is bonded by a bonding device to the base material. A static electricity generating device is attached to the bonding device for generating static electricity on the sheet material to cause the sheet material to adhere to the bonding device, so that the sheet material is prevented from falling from the bonding device prior to the bonding step. Furthermore, an apparatus and method for manufacturing a flexible flat cable, applying the above bonding apparatus and method is also disclosed. In this apparatus and method, a pair of insulating tape sheets are transferred towards electric conductors.

Abstract: A structural element core adapted to space apart opposed first and second, laterally and longitudinally extended, generally planar surface structures, the core comprising a closed figure pattern of ribbing defined by a plurality of periodically intersecting laterally or longitudinally disposed and vertically stacked fibers and a fiber supporting plastic matrix, the fibers and matrix being radially deflected at their locus of intersection with oppositely disposed fibers and matrix sufficiently to be vertically stacked to the same height at their locus of intersection as between. comprising opposed first and second. The core is usefully combined with one or more planar surface structures to form a structural element e.g., an aircraft panel.

Abstract: An elongated pile article having a support strand for attachment to a plurality of yarn bundles, the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles placed one next to the other, and a method and apparatus for making the elongated pile article.

Abstract: A method and apparatus for a low-cost, single-step method of in-line coating of pultrusion profiles to eliminate surface degradation of pultruded profiles due to outdoor exposure or corrosive attack. The method comprises pulling a combination of reinforcing fibers and resin through a pultrusion die to form a pultruded part, applying a coating to the pultruded part after it exits the pultrusion die and curing the coating on the coated pultruded part. The apparatus contains a pultrusion die for forming a pultruded part of a predetermined shape, a coating die with an exit area generally greater than the inlet area, a coating chamber located between the entrance and exit area of the coating die for applying a coating to the pultruded part, and a curing element for curing the coating on the pultruded part after it exits the coating die.

Abstract: Disclosed herein are pultruded articles prepared from a reinforcing material and a polyamide matrix made by the process of impregnating a reinforcing material with a polyamide forming reaction mixture and then pultruding the impregnated reinforcing material through a die while polymerizing the polyamide forming reaction mixture to form a polyamide matrix, wherein the temperature of the material being pultruded is at least about at the lower end of the melting range of the polyamide.

Abstract: Poly(ether ester amides) consisting of 60% to 80% by weight of a polyamide block obtainable from the following monomers:20 to 40% by weight of caprolactam or aminocaproic acid30 to 50% by weight of 11-aminoundecanoic acid20 to 40% by weight of the adduct of hexamethylenediamine anddecanedicarboxylic acidthe total amount of these polyamide-forming monomers adding up to 100% by weight, and of 20 to 40% by weight of a polyether diol/dicarboxylic acid block obtainable from equimolar amounts of polyethylene glycol with an M.sub.n molecular weight of 400 to 2,000 and one or several saturated aliphatic dicarboxylic acids with 6 to 36 carbon atoms, methods for their synthesis, spunbonded nonwovens from these poly(ether ester amides) and the use of the poly(ether ester amides) for the heat sealing of textiles.

Abstract: Method allowing the incorporation of a metallic structure into a plastic with a view to producing molded articles, which consists, after having produced a fine knitted article, preferably a weft-knitted article, which is pliant so as to ensure deformability, in combining the said knitted fabric with a plastic sheet or film, and it is characterized in that the metal knitted fabric is combined immediately upon leaving the assembly allowing the formation of a plastic film or sheet, the combining being performed by calendering while the formed plastic sheet has not yet cooled down, thus allowing the inlaying of at least the surface of the said knitted structure into the said plastic sheet or film.

Abstract: This invention is directed to a continuous process for producing a molded thermoplastic fiber reinforced article having a high resin concentration in at least one surface thereof. The finished article may be prepared by compression molding and can have a Class A surface. The continuous process includes coating at least one surface of a heated fiber mat core with a melted first thermoplastic resin, passing the fiber mat core into an extrusion zone wherein a melted second thermoplastic resin is extruded onto at least one surface of the fiber mat core and then molding the fiber mat core and thermoplastic resin into a finished article. The continuous process of this invention provides for fast production of molded finished articles such as roof tile, automobile exterior panels, house siding, etc.

Abstract: Disclosed is a structure at least partially comprising a composite material, the material being made by means of sheets of fibers embedded in a matrix, the different sheets forming plies of the material, the material comprising intrinsic means for the detection and localization of a mechanical irregularity, these means comprising at least one polarization-maintaining birefrigent optical fiber having a so-called slow axis and a so-called fast axis, embedded in the matrix and describing a known path inside the material, wherein the optical fiber is included inside a casing with an internal diameter that is greater than the external diameter of the fiber.