Abstract: The invention relates to reinforced beam sections produced by forming the cross-sectional configuration of wood particle board, e.g. such as have been provided with bonded-in reinforcing threads (4,5,6,32,48). The latter have thereby been laid in the zones (33,34,45) of the boards where the beam section configuration changes direction during the formation of the beam. Beam sections in accordance with the invention will be light, corrosion-resistant and saving on material as well as having high breaking strength, due to the reinforcement. The field of use for such beam sections is very varied, but among more obvious uses may be mentioned those as beams in housing structures and different kinds of batten in the building trade. A method of laying the reinforcing threads in predetermined zones in the boards is also embraced by the invention.

Abstract: A patterned, nonwoven, articulated fabric exhibiting a substantially uniform texture and comprised of a multiplicity of synthetic fiber elements, the opposing free ends of each of said synthetic fiber elements being joined to one another to form substantially continuous loops, said loops being interconnected to one another in a predetermined pattern. Method for producing said nonwoven fabric using specially prepared fiber elements which curl in a predetermined configuration in response to an external stimulus is also disclosed.

Abstract: A cylindrical covering fabric for a damping form roller of an offset printing machine is manufactured by weaving, as ground yarn, yarns composed of polyurethane fibers drafted to at least twice of free length, water-soluble fibers and water-insoluble fibers coiling around the above-mentioned polyurethane fiber and water-soluble fiber and, as pile yarn, hydrophilic fibers. The covering fabric is firmly mounted on a damping form roller by immersing the roller covered by the fabric in water to remove the water-soluble fibers from the ground yarns, followed by shrinking of the polyurethane fibers.

Abstract: A rip resistant net is produced by the coextrusion of two or more polymers wherein some of each polymer is in every filament of the net.

Abstract: A concrete plate assembly, e.g. as load carrying members or for building facades, comprises an inner concrete slab, an outer concrete slab spaced from the inner slab, and at least one main or stress-absorbing anchor embedded and interconnecting the slabs which are reinforced. The intervening space can be filled with an insulation and/or can constitute an insulating air space. According to the invention, at least one of the concrete slabs in the region of the connecting anchor, is provided with a closed reinforcing ring which lies in the plane of the slab, preferably midway of the cross section thereof, the anchor being embedded in the concrete within the reinforcing ring and preferably centrally thereof.

Abstract: A glass-wool mat is produced from a sheet of glass fibers by heating the surfaces of the sheet to a temperature close to the melting point of glass so that the glass fibers in the surface area have rounded ends and are shrunk so that they are firmly entangled together. Thus, non-irritating surfaces are provided on the mat.

Abstract: A concrete plate assembly, e.g. as load carrying members or for building facades, comprises an inner concrete slab, an outer concrete slab spaced from the inner slab, and at least one main or stress-absorbing anchor embedded and interconnecting the slabs which are reinforced. The intervening space can be filled with an insulation and/or can constitute an insulating air space. According to the invention, at least one of the concrete slabs in the region of the connecting anchor, is provided with a closed reinforcing ring which lies in the plane of the slab, preferably midway of the cross section thereof, the anchor being embedded in the concrete within the reinforcing ring and preferably centrally thereof.

Abstract: An improved fibrous scouring material is disclosed, that material comprising a fibrous band in the form of a three-dimensional lattice of drawn irregular fibers obtained from a plastic bilaminar film, those fibers being helically crimped and self-bonded together at their mutual contact points, the helically crimped fibers exhibiting sharp corner-edges and being interconnected by helically crimped fibrils. The thickness of the fibers is typically between 100 and 200 microns. The process for manufacturing such scouring material is also disclosed, which process includes steps of extruding a bilaminar film, drawing and fibrillating the film, stacking the fibrillated lattice and thermally treating same to induce crimping and self-bonding.

Abstract: A plastic net with a partial to a multiplicity of spirals between the interstices or crossings of the net filaments is disclosed.

Abstract: A method of forming a resilient open fibrous web of inter-engaged coarse continuous kinky filaments, with one major surface of the web being flattened. The method involves extruding a bundle of filaments of a thermoplastic material, aligning the bundle so the filaments fall into a quench bath and upon a contact surface so as to provide differential quenching, and advancing the resulting web at a slower rate than the rate of extrusion.

Abstract: A textured continuous filament yarn combining a luxuriant, soft hand with improved moisture wicking for greater comfort in garments. Some filaments have a denier which varies at least 25% (preferably 300-500%), and other filaments have a spiral cross-section.

Abstract: Essentially inorganic monolithic hollow fibers have at least one segment self-supportingly disposed as a coil. Coil shapes may be spiral, helical or conical helical. Processes are provided for making coiled hollow fibers. Apparatus are provided using coiled hollow fibers.

Abstract: The disclosure embraces a method of spraying a binder composition of hybrid character containing both organic and inorganic materials into a fiber-forming hood or chamber onto glass fibers produced by a fiber-forming process, the disclosure embracing fibrous insulation products, such as pipe insulation and block insulation, the products embodying hybrid binder composition wherein the organic phase of the binder composition improves moldability and handleability of the fibrous product during processing and installation and which provides hardness and toughness characteristics in the products to resist or prevent handling damage and physical damage in use, the inorganic phase of the binder system providing high bond strength and improved thermal stability in the product particularly under high temperatures which may volatilize the organic binder, the inorganic phase of the binder system preventing or resisting fiber slump under high temperature conditions.

Abstract: Fibers and yarns, in self-crimpable or crimped condition, are made from drawn, nonbulbous monocomponent fibers of polyhexanethylene adipamide or of polycaproamide. The fibers are particularly suited for use in carpet yarns. A process is disclosed for fabricating the fibers and yarns.

Abstract: Articles of a thermoplastic having an improved level of electromagnetic shielding are molded from plastic pellets that have a core of metalized glass fibers that are arranged to partially disperse through the molded article as individual fibers and partially to remain in clumps of generally aligned closely contacting fibers. The clumps have approximately the length of an individual fiber but they are substantially wider than an individual fiber. Improved conductivity is attributed to increased electrical bridging between fibers that is provided by the width of the clumps of fibers.

Abstract: A thermal-insulating nonwoven bulky product characterized by its structural make up of substantially continuous single filaments of from about 0.01 to 2 denier which are stabilized on themselves in the product by a surface binder on the filaments and process for making the same.

Abstract: A synthetic fur closely resembling a natural fur comprises relatively long and thick guard hair-like raised synthetic fibers, each having a transverse cross-section wherein at least one constricted part is formed, and underfur-like raised synthetic fibers, each having a rate of dissolution in a solvent or of hydrolysis with a hydrolyzing agent higher than that of said guard hair-like raised fibers, and a length and fineness less than those of said guard hair-like raised fibers. The synthetic fur is prepared by applying a viscous treating liquid containing a solvent or hydrolyzing agent to a raised surface of a fabric comprising relatively thick raised synthetic fibers, each having a transverse cross-section wherein at least one constricted part is formed, and relatively fine raised synthetic fibers, each having a rate of dissolution in the solvent or of hydrolysis with the hydrolyzing agent higher than that of said relatively thick raised fibers.

Abstract: The invention relates to a new complex filiform textile element comprising fibers of an inorganic material.The element in accordance with the invention is characterized by the fact that the fibers are contained on the outside by an enveloping but open structure of metal, the total area of the openings (So) being greater than the total area of the enveloping structure (Se) covering the apparent peripheral surface of all the entire fibers.

Abstract: A process is provided for preparing self-crimpable monocomponent fibers by the sequential steps of melt-spinning a polymer of polyhexamethylene adipamide or polycaproamide into filaments, quenching the filaments by a cross-flow of air to an average surface temperature of about 40.degree. to 130.degree. C., applying an effective amount of water to the filaments while they are in said temperature range, and then drawing the filaments at a draw ratio of at least 1.3:1 to obtain a tenacity of at least 1.3 gpd, a break elongation of less than 120% and a latent, substantially helical, frequently reversing crimp of at least 6 filament crimp index. The novel products of the invention, which include fibers and yarns, in self-crimpable or crimped condition, are particularly suited for use in carpets.

Abstract: The present invention relates to FRP members, the apparatus and process for making same. The FRP members are reinforced with helical strands of reinforcing material disposed in expanded helices of opposite hand, the helices of each hand being contained in discrete layers. The lead angle of each helix may be constant or varied along the length of the member independently of whether the member is cylindrical or tapered in order to provide the desired structural characteristics. The process comprises impregnating the reinforcing strands with resin and wrapping those strands onto a mandrel by apparatus in which relative rotational as well as relative translatory movement between the mandrel and a winding head may be effected to wrap the strands onto the mandrel. At least one relative movement may be selectively varied to effect the desired lead angle to the helically disposed reinforcing strands along the length of the mandrel.

Abstract: Lengths of tubing, especially that type of tubing suitable for use in medical equipment and devices, are weakly bound into a coil shape in order to facilitate handling and storage thereof while at the same time placing the tubing into a form that will make the full length thereof readily available by merely applying a slight pulling force to the ends of the coiled tubing. The solvent is applied in a very narrow uninterrupted stream, which stream tracks along one or more locations on a length of tubing that has been wound around a mandrel, which stream is dispensed by a mechanism that simultaneously carries out such tracking in a manner that is synchronized automatically with the dispensing of the stream and without the need for separate control mechanisms with the result that the tracking and dispensing are carried out at substantially the same ratio, with the same general consistency or inconsistency of travel, to the extent that the amount of solvent dispensed per turn of the coil is inherently uniform.

Abstract: A polyurethane cushion material comprising incorporating a large denier of a fiber filament in a foamed polyurethane, and it is produced by crimping the fiber filament, setting it under heating, producing a staple fiber, filling the staple fiber thus formed with a polyurethane into a mold, forming the polyurethane and post-curing it to complete polycondensation.

Abstract: Articles of a thermoplastic having an improved level of electromagnetic shielding are molded from plastic pellets that have a core of metalized glass fibers that are arranged to partially disperse through the molded article as individual fibers and partially to remain in clumps of generally aligned closely contacting fibers. The clumps have approximately the length of an individual fiber but they are substantially wider than an individual fiber. Improved conductivity is attributed to increased electrical bridging between fibers that is provided by the width of the clumps of fibers.

Abstract: A textured melt-spun filament having alternate S-twisted and Z-twisted helical sections connected by twist reversal regions, the filament having a cross-section comprising a spiral wherein the outer portion of the spiral lies at the inside of the helical sections.

Abstract: The present invention relates to a method for producing a mixed flock fabric of different filaments in which highly curled filaments are straightened, sized, cut into a length of 0.1 to 0.4 inch and electrostatically flocked with non-sized fibres onto a substrate, so that when the size is removed, there is formed a mixed flock fabric having mixed, stiffened and individual fibres.

Abstract: A tread reinforcing construction of a pneumatic radial tire for heavy-load vehicles is disclosed. The tread reinforcing construction comprises a combination of a rubberized belt superimposed about a rubberized carcass ply and at least one additional rubberized reinforcing layer interposed between the belt and a tread rubber. The additional rubberized reinforcing layer is composed of a reinforcing element embedded therein and formed of a helically formed filament or a bundle of at least two helically formed filaments assembled together without twisting at random.

Abstract: The fibers constituting the composite material are impregnated with a composition containing at least one unsaturated epoxy resin mixed with at least two ethylenic monounsaturation monomers, at least one ethylenic polyunsaturation monomer, a photoinitiator and an organic peroxide. The composition is prepolymerized by means of ultraviolet rays in a first step and then cross-linked either by ultraviolet rays or a temperature rise in a second step.

Abstract: Reinforcing members for the reinforcement of hardenable or settable material such as concrete or mortar are disclosed. The reinforcing members comprise a plurality of wire elements such as fibers united by a binder which loses its binding ability when mixed with the settable material, thereby releasing the elements in a random manner in the matrix. Methods are also disclosed for mixing the reinforcing members in the matrix and for making the reinforcing members.

Abstract: A rubber reinforcing member and a method of manufacturing the same are disclosed. The rubber reinforcing member is composed of rubber and a number of filamentous elements embedded therein. The filamentous element is formed of a metal or a material having a strength similar to that of the metal and has a helix on at least one end portion thereof.

Abstract: Disclosed is a solution including an aromatic bis (ether dicarboxylic acid) component, an organic diamine component and a solvent system including a water-soluble organic solvent component, which may be a dipolar aprotic solvent or a monoalkyl ether of ethylene glycol or of diethylene glycol, and optionally water. The solution may be coated on a substrate and polymerized to form high quality polyetherimide coatings.

Abstract: A method of desulfurizing iron in an induction furnace is disclosed. High purity magnesium, carried in a lance controlled cartridge, is plunged into the lower zone of a molten metal pool of an induction furnace; the cartridge is held submerged for a period of 30-200 seconds. The molten metal column above the submerged cartridge must be at least 2.5 feet, preferably 6-7 feet. The molten metal temperature at the time of cartridge plunging is limited to 2400.degree. F. or less. Magnesium recovery will be at least 70%, which is better than other prior art methods by a factor of 1.4.

Abstract: Cellular linear filaments are disclosed and include a substantially continuous, integral plastic hollow member having internal generally transverse partitions which divide the hollow member into cells. The wall of the hollow member can be continuous or can contain orifices, slits, windows and the like. The cells can be open or closed and uniformly or randomly spaced along the tubular member. The cells are defined by transverse partitions which can be integrally formed with the hollow member or they can be seals in the hollow member. Woven, non-woven and tufted materials including yarns made up in part or in total of the cellular linear element are also disclosed. The cellular linear element can be cut into discrete lengths to form pile-like elements which can be attached upright to a base to form a multi-element device.

Abstract: A textile multi-filament yarn having individual filaments cohered together at least in part by individual interfilamentary bridges, which bridges are disposed within the multi-filament yarn to join the filaments thereof so as to render the yarn structurally frozen so that at least a part of the individual filaments cannot be pulled apart without breaking at least in part the structure of the multi-filament yarn. The bridges are made of the same material as the filaments. Some of the segments of individual filaments between consecutive interfilamentary bridges can be of different length.

Abstract: A decorative ornament is provided which includes strand material spirally wound in individual, side-by-side windings about the smooth exterior surface of a three dimensional core and one or more printed contrasting designs on and spanning a substantial number of the windings of strand material to stabilize the windings on the core while also providing additional decorative ornamentation for the ornament.

Abstract: The invention relates to a composite, synthetic multi-filament carpet yarn of polyamide, which yarn is composed of a number of intertwined basic yarns of varying dye affinity and/or crimped yarns of different colors.

Abstract: A cushioning material composed of a drafted three-diamentionally crimped filament mass of a synthetic fiber by bonding contact points between each of the filament with an adhesive, wherein the filament crimped in various shapes formed by partially expanding and compressing the filament crimps at required specific portions in the cushioning material with directionality in required specific directions are distributed with partially increased density in the degree of entanglement.

Abstract: Multifilament synthetic polymer yarn is texturized by passing the yarn in a gas stream to a diffuser zone to cause the gas to expand and the yarn filaments to splay open. The yarn filaments are then separated from the expanding gas stream towards a continuous smooth side wall surface defining one end of a bulking chamber. At this end of the chamber the filaments are impacted with each other and the smooth wall surface to form a compact yarn mass. This yarn mass is pushed into and through a slotted portion of the bulking chamber. Simultaneously the gas passes through the yarn mass initially formed in the chamber and then discharges laterally from this mass as it is pushed into the slotted portion.

Abstract: A self-bonding magnet wire suitable for use in making coils, especially deflection yoke coils for television, obtained by coating and baking on a bare conductor or an insulated wire conductor an enamel comprising a polymer solution prepared by reacting two or more copolyamides, at least one of which is a copolyamide containing a nylon-12 unit in the molecule thereof, under heating in a solvent containing at least one compound with a phenolic hydroxyl group in the molecule thereof.

Abstract: Polyester feed yarn for drawtexturing, having an elongation at break of 30 to 150 percent, is composed of three different types of filaments. (A) 20 to 40 percent of the filaments consist of a polymer of ethylene terephthalate and 0 to 3 mole percent of modifying groups for imparting cationic dyeability. (B) 20 to 40 percent of the filaments consist of a copolymer of ethylene terephthalate and about 5 to 15 mole percent of other ester units. (C) 15 to 35 weight percent of the yarn consists of eccentric bicomponent filaments of the above two polymers. The bicomponent filaments have a smaller denier and lower elongation at break than the other filaments, so that the bicomponent filaments can be broken preferentially when the yarn is drawtextured to provide spun-like tactility. When broken, the bicomponent filaments helically crimp and become entangled in the yarn bundle with a slight, uniform protrusion of ends above the surface which provides good resistance to pilling in fabrics.

Abstract: There is provided a method of insulating electromagnetic coils comprising coating an electromagnetic coil with epoxy resin containing a cross linking agent consisting essentially of an acid anhydride, said coil having a bonding layer consisting of epoxy resin having a melting point of higher than 60.degree. C, and then subjecting to bridging said epoxy resin containing a cross linking agent by heating.

Abstract: Team lattice fibers are disclosed. These fibers consist of two or more axial members connected by transverse bridges. The bridges may be separate components or may be formed by undulations in a linear member joined to one or more other members at points of contact or intersection. The purpose of the present invention is to separate the variables of fiber characteristics between the components of the fiber of the present invention.Another purpose of the invention is to produce fibers commanding exceptionally large bulk. A further purpose of the invention is to obtain control of the structure of the virtual space of the fiber and fabrics formed from the fiber.Another purpose of the present invention is to utilize textile wastes such as fiber fines by incorporating these into the engineered fibers of the present invention. A further object of the invention is to produce fibers with controlled stiffness.

Abstract: A reinforced carbon article which comprises a carbon fiber shape bonded by a carbon binder and having incorporated within said article a friction modifier, e.g., the in situ reaction product of carbon and a boron containing additive which comprises a material selected from the group consisting of boron, boron nitride, boron silicide and refractory metal borides; and a process of making such an article which comprises forming a carbon fiber shape, dispersing a boron containing additive within at least a portion of said carbon fiber shape, impregnating the carbon fiber shape with a carbonizable binder, and heating the shape to carbonize the binder and to form in situ the reaction product of carbon and the boron containing additive.

Abstract: Crimped bicomponent-filament yarn is produced by spinning composite filaments of polyhexamethyleneadipamide and polyethylene terephthalate modified with 5-(sodium sulfo) isophthalate, with the two components side by side in oblong filament cross sections wherein the length of the major axis is 2.5 to 4.5 times the length of the minor axis and the polyhexamethyleneadipamide component occupies 20 to 35 percent of the total cross-sectional area, drawing the filaments about 3 .times. in about 200.degree. C steam, and crimping the filaments in a bulking jet with air or steam at about 280.degree. C. The composite filaments have a randomly reversing filament twist with an average of 60 to 120 crimps per inch (23.5 to 47 crimps/cm) of filament and, when the yarn is heated at about 100.degree. C in aqueous caustic solution, filament components split apart to form a yarn having crimped copolyester filaments surrounded by arched filaments of polyhexamethyleneadipamide.

Abstract: Side-by-side bicomponent polyester filaments, and process for making same, are disclosed, wherein the filaments are of polyethylene terephthalate and polybutylene terephthalate, with the polybutylene terephthalate being sparingly cross-linked by at least about 0.20 mole per cent of cross-linking agent. The sparingly cross-linked polybutylene terephthalate has a melted state viscosity VF of at least about 2000 poises at 260.degree. C. The polyethylene terephthalate partly envelopes the sparingly cross-linked polybutylene terephthalate, in cross-section, so as to cover at least about 45% of the periphery of the sparingly cross-linked polybutylene terephthalate.

Abstract: A composite article comprising at least two load-bearing members one within the other and having mutually contacting surfaces adapted to generate a restraining force resisting relative axial movement of the members, wherein the members are constructed such that a local reduction in said restraining force takes place as the local tensile stress in the article increases.

Abstract: A polyester yarn composed of a plurality of individual fibrous materials such as endless filaments or fibers. Each of these fibrous material is provided with cross-sectional thicker portions, thinner cross sectional portions and intermediate thickness-size portions randomly distributed along the axial direction thereof in a particular condition of distribution of cross-sections of these fibrous material. The above-mentioned polyester yarn involved a textured yarn applied to a drawn polyester multifilament yarn having the above-mentioned basic condition. To produce the polyester yarn according to the present invention, it is the basic condition that the undrawn polyester multifilament yarn should be drawn under a condition of a drawing ratio below a natural draw ratio of undrawn filaments of said undrawn multifilament yarn and a drawing temperature over a crystallizing initiating temperature of said undrawn filaments.

Abstract: An electron emissive coating for long life fluorescent lamps comprises a composition of barium tantalate having the formula M(BaO) . N(Ta.sub.2 O.sub.5) where the ratio M/N is greater than 1.

Abstract: A beam and strut girder for use in vehicles and in other constructions which comprises a girder construction consisting of a fiber reinforced plastic material.

Abstract: Open structured, net-like composite filaments are disclosed and include two or more longitudinally extending wavy or undulating filaments which intersect one another at a plurality of points. The wavy or undulating filaments are joined to one another at least at a portion, preferably a majority or all, of their intersecting points to maintain the configuration of the individual filaments and to sustain the open structure of the composite filaments.

Abstract: A self-bonding magnet wire comprising a conductor and a baked mixture of nylon copolymer (A) and nylon copolymer (B) where the proportion of nylon copolymer (A) and nylon copolymer (B) is 50-95 parts of (A) to 50 to 5 parts of (B) (by weight), nylon copolymer (A) being alcohol-insoluble and non-swellable by an alcohol at room temperature and containing nylon-12, and nylon copolymer (B) having a lower melting point than that of nylon copolymer (A). Yoke coils for television sets comprising such a magnet wire and a process for forming such a magnet wire are also disclosed.