Abstract: A reinforcing lamina sheet and a process of making a reinforcing sheet for use in a glue laminated beam. The reinforcing lamina sheet increases the compressive and/or tensile strength of the glue laminate beam. The lamina sheet is formed from unidirectionally oriented reinforcing filaments, preferably aramid filaments in an epoxy resin, and is cured in a curved configuration. The resulting lamina sheet includes filaments which are uniformly tensioned and, therefore, when a load is applied to the glue laminate beam having the reinforcing lamina sheet, the fibers receive the load substantially simultaneously. The process of forming the lamina sheet includes drawing reinforcement yarns through a resin bath to form a resin impregnated substantially planar yarn band, contacting one side of the resulting impregnated band with a curved heated surface to promote partial curing of at least the contacting surface of the band, and further applying heat to at least the opposite side of the partially cured band.

Abstract: An airbag base fabric is formed of thermoplastic synthetic filament yarns, wherein the yarn strength of the filament yarn is 7.0 g/denier or more and the fineness of the filament yarn is 200-250 denier. The fabric is thin and lightweight, which is thus excellent in accommodation, and is effective in reducing the size and weight of an airbag module.

Abstract: The heat resisting fiber-reinforced composite material of the invention is a heat-resisting fiber-reinforced composite material used for a product or a part that generates temperature distribution; wherein the thermal expansion coefficient at a portion corresponding to a medium to low temperature range is greater than the thermal expansion coefficient at a portion corresponding to a high temperature range, and the boundary between the portion corresponding to medium to low temperature range and the portion corresponding to the high temperature range is a transition region.

Abstract: A retention barrier system comprises a flexible laminate of a thin paper sheet and thin aluminum sheet in a rectangular configuration. The laminate has a leading edge and a parallel trailing edge and side edges between the leading and trailing edges. A plurality of flexible rods are positioned across, and coupled to, the laminate from side edge to side edge and spaced from each other along the length of the laminate.

Abstract: A carbon fiber reinforced carbon composite, obtained by a method comprising impregnating a pitch or a resin into a molded member formed of carbon fibers for densification thereof; forming an impregnated pyrolytic carbon layer by CVI after densification; and forming a coated pyrolytic carbon layer on the impregnated pyrolytic carbon layer by CVD; a method of making the carbon fiber reinforced carbon composite; and a pulling single crystal member made from the carbon fiber reinforced carbon composite.

Abstract: A protective yarn having a single fiberglass core fiber and one or more cover members is disclosed. At least one of the cover members are fibers selected from the group consisting of aramid fiber, ultrahigh molecular weight polyolefin fiber, polyester, nylon and polyacrylic fibers. To prevent glass fragment breakout, the cover members are wrapped, wound or twisted around the core in a manner which permits successive layers to be wrapped, wound or twisted around the core in an opposite direction from the cover member immediately below. In a preferred embodiment, one of the cover members is a substantially non-slippery fiber. The non-slippery fiber is selected from the group consisting of polyester, nylon and cotton. The construction and composition of the invented protective yarn provides a low cost component for making protective gloves and other protective garments capable of providing a user substantial cut protection while affording the user significant freedom of movement.

Abstract: A thin film structure is provided including a silicon substrate with a layer of silicon dioxide on a surface thereof, and a layer of cubic oxide material deposited upon the layer of silicon dioxide by ion-beam-assisted-deposition, said layer of cubic oxide material characterized as biaxially oriented. Preferably, the cubic oxide material is yttria-stabilized zirconia. Additional thin layers of biaxially oriented ruthenium oxide or lanthanum strontium cobalt oxide are deposited upon the layer of yttria-stabilized zirconia. An intermediate layer of cerium oxide is employed between the yttria-stabilized zirconia layer and the lanthanum strontium cobalt oxide layer. Also, a layer of barium strontium titanium oxide can be upon the layer of biaxially oriented ruthenium oxide or lanthanum strontium cobalt oxide.

Abstract: A molded pad of asbestos-free material, for use e.g. in short-cycle and multi-platen presses for coating chipboard or other substrates with melamine, films or other materials, consisting of woven fabric made of heat-resistant yarn, esp. aromatic polyamide (aramid), opt. combined with other yarn materials and contg. 50-98 (pref. 71-92) wt. % metal fibers (w.r.t. total wt. of pad). The novelty is that a non-woven fabric (B) is uniformly bonded with adhesive (I) to the top and/or bottom side of the woven fabric (A). Also claimed is a similar pad for use in high-pressure laminating presses, with woven fabric (esp. of aramid) as above (A) contg. 0-70 (pref. 0-40) wt. % metal fibers and with non-woven fabric (B) evenly stuck on the top and/or bottom of layer (A) with adhesive (I).

Abstract: A metal fiber of titanium or titanium alloy has given equivalent area diameter and specific surface area and is produced by a bundle drawing method wherein mild steel is used as a material for covering layer and outer housing and a composite wire is subjected to a heat treatment at a given temperature.

Abstract: This invention is directed to a flexible penetration resistant stabilized composite, that includes an interlaced yarn structure of yarns having a tenacity of at least 8 g/d, a tensile modulus of at least 150 g/d and an energy to break of at least 10 j/g. The yarn structure includes yarn subgroups alternately stacked together. There is also provided a polymeric web coextensive with, in contact with, and bound to the surface of one of the subgroups that at least partially contacts and is bound to the yarns in all the subgroups in the stack to thereby contain the subgroups in the stack in an interlaced yarn structure.

Abstract: This invention pertains to a press pad made of asbestos-free material, e.g., for use in short-cycle and multiplaten presses for coating chip boards or other material.

Abstract: A fiber glass mat especially useful for bonding to wood contains glass fibers and a “B” staged resin, and the method of making the mat, are disclosed. A substantial portion of the resin binder can be a furfural alcohol, phenol formaldehyde, melamine formaldehyde, or any other resin that can be “B” staged.

Abstract: Aromatic polyamide fibers which have a crystalline structure having (1) crystal size (A) in a (110) plane of 7.5 nm, (2) crystal size (B) in a (200) plane of 8.2 nm and (3) a product A×B of 61.50 to 630.00, and exhibit a thermal linear expansion coefficient of −1.0×10−6/° C. to −7.5×10−6/° C. and thus a high dimensional stability even upon moisture-absorbing and desorbing, are useful for forming a resin-reinforcing fiber sheet, a pre-preg containing the fiber sheet, and a laminate for, for example, an electric insulating material or electric circuit board, having an excellent cutting, shaving, perforating or laser processability and capable of forming a smooth cut, shaved or perforated face.

Abstract: Essentially inelastic backing material for medical purposes, characterized in that the backing material has an addition of high-strength fibers, multi-strand yarns, mixed multistrands or filaments having an ultimate tensile stress strength of at least 60 cN/tex, preferably from 80 to 500 cN/tex, the high-strength fibers, multi-strand yarns, mixed multistrands or filaments having a water absorption of less than 10%, preferably less than 5% and, with particular preference, less than 3% and the high-strength fibers, multi-strand yarns, mixed multistrands or threads giving the backing material an ultimate stress strength of at least 50 N/cm, preferably from 60 to 450 N/cm and, with particular preference, from 65 to 250 N/cm, and in that the backing material is coated at least partially on at least one side with a hotmelt adhesive composition.

Abstract: Fiber oriented sails made of woven panels of scrim type weave wherein warp yarns in the panels follow primary load paths in a sail and a method for making woven panels.

Abstract: A resin composition which exhibits good sealability while keeping creep deformation to a minimum when brought into sliding contact with a mating member at a high contact pressure of over 10 MPa, and which will not damage a mating member made from an aluminum alloy while sliding in contact with lubricating oil. The resin composition is a pressure-resistant, sliding tetrafluoroethylene resin composition containing 100 parts by volume of a modified tetrafluoroethylene resin in the form of a copolymer of tetrafluoroethylene and partially modified tetrafluoroethylene, 5-40 parts by volume of carbon fiber, and 2-30 parts by volume of calcium sulfate whiskers having a Mohs hardness of 4 or less, and having, at 100° C., a maximum deformation rate in 24 hours, of 15% or less. A seal device to be brought into slide contact with an aluminum metal is molded from such a pressure-resistant, sliding tetrafluoroethylene resin composition.

Abstract: A ballistic resistant fabric formed by placing a polymer film on the fibers of a high tenacity fiber fabric which has a coefficient of friction higher than the coefficient of friction of the high tenacity fibers.

Abstract: A process for preparing fibers containing intrinsically conductive polymers comprises extruding two or more filaments, applying a coating formulation containing a salt of an intrinsically conductive polymer to at least one of the filaments to form a coated filament, combining the filaments to form a filament bundle, and processing the bundle into a fiber. A filament coated with an intrinsically conductive polymer and a fiber comprising at least one coated filament are also provided which are useful in preparing textiles and other materials which exhibit conductivity.

Abstract: A composite laminate including an exterior face material, such as a wood veneer, fabric or thin metal is disclosed for use with a fiber impregnated substrate having a polyester backing sheet thereon. The composite laminate of this invention eliminates the need for an adhesive between the polyester sheet and the substrate.

Abstract: A UHMWPE (ultra-high molecular weight polyethylene) composite and a method for its manufacture. Fibers of polyethylene or polypropylene are cause to swell in a solvent or in a solution of the polymer, thereby producing molecular brush layers within the external layers of the fibers and reciprocal entanglement of the surrounding polymer matrix with the external surfaces. Preferably, the fibers are placed under tension, and the swelling of the fibers and the growing of the brush layers is conducted at a temperature above the melting point of the unloaded fibers but below the melting point of the loaded fibers. The composite then is cooled under pressure to crystallize the brush layers, and then is molded under heating and further compression.

Abstract: A fiber having increased cut resistance is made from a fiber-forming polymer and a hard filler having a Mohs Hardness Value greater than about 3. The filler is included in an amount of about 0.05% to about 20% by weight. In preferred embodiments, the fiber-forming polymer is poly(ethylene terephthalate) or a liquid crystalline polyester comprising monomer units derived from 6-hydroxy-2-naphthoic acid and 4-hydroxybenzoic acid. Preferred fillers include tungsten and alumina.

Abstract: The present invention provides a unique knit construction having a nonfiberglass yarn for controlling stiffness, i.e., a stiffness-controlling yarn. The knit may optionally have a nonfiberglass microdenier yarn and/or a heat shrinkable yarn.

Abstract: A composite insulation of S2 glass fibers and epoxy is formed having a more nearly uniform coefficient of thermal expansion in all three planes for use in cryogenic superconductor applications. The glass fibers have a three-dimensional weave.

Abstract: A biaxially oriented film (1) which is substantially formed from a polyethylene naphthalate copolymer comprising ethylene-2,6-naphthalate units in an amount of 90 to 99.9 mol % based on the total of all recurring units and an isophthalic acid component or a decalin-2,6-dicarboxylic acid component in an amount of 0.1 to 10 mol % based on the total of all dicarboxylic acid components and which has (2) Young's modulus of 500 kg/mm.sup.2 or more in each of a longitudinal direction and a transverse direction, (3) a plane orientation coefficient of 0.230 to 0.275 and (4) a density of 1.350 g/cm.sup.3 or more.

Abstract: Disclosed is a base inliner comprising a textile sheet material and a reinforcement, wherein said reinforcement absorbs a force so that, in a stress-strain diagram (at 20.degree. C.), the load at an elongation within the range between 0 and 1% differs by at least 10% at at least one location for said base inliner with said reinforcement compared with said base inliner without said reinforcement, preferably by at least 20%, particularly preferably by at least 30%. The base inliner is useful for producing optionally bituminized roofing and sealing membranes.

Abstract: Disclosed is a base inliner comprising a textile sheet material and a reinforcement, wherein said reinforcement comprises monofilaments whose diameter is at least 0.1 mm, preferably between 0.1 and 1 mm. The base inliner is useful for producing optionally bituminized roofing and sealing membranes.

Abstract: A pollutant-reducing catalytic converter for an internal combustion engine. The catalytic converter is of ceramic and operates at higher temperatures for increased efficiency. A ceramic foam is used as the substrate for the catalyst. The foam is an open-celled foam and the substrate is deposited on the walls of the cells. Thus, there is a maximum area of catalyst with a minimum amount of catalyst required. The catalytic converter can be placed in the engine compartment adjacent the engine for maximum efficiency without causing temperature problems within the engine compartment.

Abstract: Support material for medical purposes, which is characterized in that an addition of high-strength fibers or threads on an organic or inorganic base with a maximum tensile strength over 60 cN/tex gives the support material a maximum tensile strength of over 2 N/cm and the support material has mainly a maximum tensile strength of under 400%.

Abstract: The matrix of the composite material is made in sequenced manner by chemical vapor infiltration within fiber reinforcement. Each elementary sequence of the matrix comprises a relatively flexible layer and a relatively rigid ceramic layer, and the sequences are of thicknesses that increase going away from the reinforcing fibers, with the thickness at least of the first-deposited sequence being selected to be sufficiently small for the fibers to be coated in essentially individual manner. The flexible layers are made of an anisotropic material having sufficient capacity for elastic deformation in shear and transversely, and although a mainly ceramic character is conserved for the matrix, the thickness of the flexible layers is nevertheless selected to be sufficiently large to be capable of absorbing differential expansion of the components of the composite material while it is being made without inducing the existence of an initial network of cracks.

Abstract: A glass fiber mat for a stampable sheet includes long fibers and short fibers which will not separate even during forming and which are distributed uniformly to make the features of the respective fibers effective. A production system includes a double belt press type laminator which stacks the glass fiber mat, a thermoplastic resin melt and a film which is taken up and applies heat and pressure for impregnation, and cools while maintaining a pressure condition. A supply supplies the glass fiber mat into the laminator. A pair of pressure shearing rollers are arranged between the supply and an endless belt of the laminator for partially cutting the glass fibers into short fibers. The rollers are made of steel to apply line pressure to the glass fiber mat to shear the continuous fibers to uniformly distribute the short fibers in long fibers.

Abstract: A vehicle door has a door body which includes an outer door panel, an inner door panel, and a recess disposed therebetween. A metal mat has a plurality of elongated first elements and a plurality of second elements interwoven with respect to the first elements. The metal mat is secured directly or indirectly to the door body. The first elements are movable with respect to the second elements such that the application of an impact force thereto will result in relative sliding movement caused either by displacement of the first elements or second elements, or stretching of the same under the influence of the impact force, or both. In a preferred embodiment, peripheral portions of the woven mat are fixedly secured to a frame which is in turn secured to the door body. The first elements are preferably offset from the second elements about 50 to 100 degrees. In one embodiment a plurality of third elements oriented generally in the same direction as the second elements are interwoven with the first elements.

Abstract: A method of making a fibrous, nonwoven electrically conductive mat particularly suited for use in making a glass fiber reinforced product is disclosed. The mat contains a majority of glass fibers with a majority of the glass fibers having a conductive material like an aluminum coating on at least a part of the surface of the glass fibers. The fibers are bonded together with a stretchable resin binder when the mat is to be used to mold a part having a complex curved surface, and a conventional binder when the mat is intended for flat or simple curved parts. The mats of the invention have a surface resistivity of less than about one million ohms/Sq. and usually less than 500 ohms/Sq. and are particularly useful in the manufacture of satellite antenna dishes.

Abstract: Each side of the multi-sided freestanding rotable rack includes a first section, with a first indicia representing a particular eyeglass frame style, and a plurality of second sections. Each of the second sections includes a second indicia representing a different sunglass lens type suitable for a particular activity. A retainer for clip-on sunglasses extends from each of the second sections. The retainer holds clip-on sunglasses suitable for the eyeglass frame style indicated by the first indicia of the side upon which it is located and for use in the activity represented by the second indicia associated with the second section upon which it is located.

Abstract: A novel materials technology has been developed and demonstrated for providing a high modulus composite material for use to 1000.degree. F. and above. This material can be produced at 5-20% of the cost of refractory materials, and has higher structural properties. This technology successfully resolves the problem of "thermal shock" or "ply lift," which limits traditional high temperature laminates (such as graphite/polyimide and graphite/phenolic) to temperatures of 550-650.degree. F. in thicker (0.25" and above) laminates. The technology disclosed herein is an enabling technology for the nose for the External Tank (ET) of the Space Shuttle, and has been shown to be capable of withstanding the severe environments encountered by the nose cone through wind tunnel testing, high temperature subcomponent testing, and full scale structural, dynamic, acoustic, and damage tolerance testing.

Abstract: A hot soft nip calendar apparatus is provided for a paper mill. The apparatus includes at least one heated calendar roller and a finishing belt which is moved in proximity to the heated calendar roller by a plurality of drive rollers and at least one pressure roller. Thus, a heated calendar nip is defined between the heated calendar roller and the finishing belt. A web of paper is passed through the nip, such that one surface of the web of paper is contacted by the heated calendar roller, while the opposed surface of the web is contacted by the finishing belt. The finishing belt has an extremely smooth surface for contacting the web of paper so as to impart appropriate smoothness and gloss characteristics to that surface. The finishing belt can readily be changed when worn or damaged or to alter the characteristics being imparted to a web of paper.

Abstract: A reinforcement for composite materials is disclosed, which comprises a number of filaments of inorganic long fiber and glass and/or glass ceramic present in the gaps among the filaments and having a wire or tape form. Also disclosed is a metallic or ceramic composite material composed of a plurality of the reinforcements and a metal or intermetallic compound or ceramic which is present in the gaps among the individual reinforcements.

Abstract: A carbon fiber hybrid laminate includes a first group of carbon fiber reinforced laminae having a positive CTE and, second group of carbon fiber reinforced laminae having a negative CTE, wherein the hybrid laminate has a tailorable in-plane CTE in the range of .+-.0.2.times.10.sup.-6 in/in/.degree. F.

Abstract: A composite web structure utilizing a thin first layer of material having a plurality of structural fibers arranged to lie essentially in a unidirectional orientation. A thin second layer of material is positioned adjacent the first layer and includes a plurality of structural fibers. First and second layers are impregnated with a matrix material for binding fibers within the first and second layers and for binding the first and second layers together. The web may be formed into a composite structure such as a honeycomb core for fabrication into a panel.

Abstract: A carbon monoxide sensor including a gas detecting portion and at least a pair of electrodes, wherein the gas detecting portion includes a metal oxide represented by a following formula;Cu.sub.1-x Bi.sub.x O.sub.y(0<x<1 and 1<y<1.5).

Abstract: A protective fabric of high penetration resistance is formed from a plurality of layered, densely woven base fabrics, each formed by tightly weaving multifilament yarns to obtain a warp yarn "density" or "cover" in excess of 100% at the center of the fill yarn, and a fill yarn density or cover preferably also in excess of 75%. The yarns themselves preferably comprise a high modulus, high breaking strength yarn of materials such as Kevlar, Spectra, or Vectran. The resultant layered fabric offers especially high penetration resistance to weapons such as ice picks and the like. Additional resistance to penetration by sharp knives is provided by interruptedly coating the base fabric with an epoxy in such a manner as to inhibit penetration while providing drapability and breathability.

Abstract: A double shear lap join is formed between metal and composite structure by welding Z-pins in the composite in the joint area to the metal tangs on the metal structure. The joint has modest strength but is less susceptible to shock damage than an adhesive bond or to notch effect crack propagation damage associated with fastened metal/composite joints.

Abstract: The morphology of multidimensional, thermally stable oligomers is combined with the inclusion of charge carrier linkages within the polymer arms to produce thermally stable advanced composites from cured oligomers that are conductive or semiconductive if suitably doped.

Abstract: A composite material protected by oxidation at intermediate temperatures exceeding 850.degree. C. comprises fiber reinforcement densified by a matrix which includes at least one self-healing phase including a glass-precursor component such as B.sub.4 C or an Si--B--C system, together with excess free carbon (C) at a mass percentage lying in the range 10% to 35%. The, or each, self-healing phase can be interposed between two ceramic matrix phases, e.g. of SiC. While the material is exposed to an oxidizing medium, oxidation of the free carbon promotes oxidation of the precursor and transformation thereof into a glass capable of plugging the cracks in the matrix by self-healing.

Abstract: By poststretching, at a temperature between about 135.degree. and 160.degree. C., a polyethylene fiber, which has already been oriented by drawing at a temperature within 5.degree. C. of its melting point, an ultra high modulus, very low creep, low shrink, high tenacity polyolefin fiber having good strength retention at high temperatures is obtained. The poststretching can be in multiple stages and/or with previous annealing. The poststretching should be done at a draw rate of less than 1 second.sup.-1. Tensile modulus values over 2,000 g/d for multifilament yarn are consistently obtained for ultrahigh molecular weight polyethylene, with tensile strength values above 30 g/d while at the same time dramatically improving creep (at 160.degree. F. (71.1.degree. C.) and 39,150 psi load) by values at least 25% lower than fiber which has not been poststretched. Shrinkage is improved to values less than 2.5% of the original length when heated from room temperature to 135.degree. C.

Abstract: The invention provides fabrics having improved ballistic performance and processes for making the same. The fabrics include a network of consolidated multifilament yarns formed of high strength filaments. At least a portion of the high strength filaments of the yarns, are temporarily locked together to provide a substantially stable, flattened cross-sectional configuration to the yarns. The resultant fabrics are capable of absorbing an impact from a projectile, i.e., a bullet or shrapnel, directed toward the fabric and substantially decreasing its velocity. The fabric can also provide slippage or movement of the yarns relative to one another to dissipate the energy of impact of a projectile across a greater surface area of the fabric.

Abstract: A woven fabric to be used in formation of a composite material includes multifilament warp and weft threads. Each of the warp threads and the weft threads have a total weight less than 80% of the weight of the fabric. The woven warp and weft threads have O twist/m and a torsion no greater than an original torsion of the threads before weaving. Each woven warp and weft thread has a width over the entire length thereof that is greater than or equal to an original width before weaving. The fabric is woven to have a given weight per unit area and a fiber volume ratio that is approximately constant throughout the fabric and that is satisfactory for use of the fabric in a composite material. The warp and weft threads of a yarn count that is greater than a yarn count traditionally used to achieve the fiber volume ratio for the given weight per unit area.

Abstract: A ballistic laminate structure in sheet form includes first and second arrays of high performance, unidirectionally-oriented fiber bundles having a tensile strength greater than 7 grams per denier. The second array of fiber bundles is cross-plied at an angle to the first array of fiber bundles. A polymeric film resides between the first and second cross-plied arrays of fiber bundles to adhere the first and second arrays of fiber bundles together without substantial penetration of the film into the fiber bundles or through the laminate structure from one side to the other.

Abstract: A bulletproof fabric that fully exhibits the mechanical properties of constituent filaments to have light weight and high bulletproof performance is provided. The bullet-proof fabric contains a non-twisted, non-interlaced multifilament having a total fineness of 10 to 1000 denier both as a warp and as a weft. The multifilament consists mainly of at least one high-strength, high-modulus filament having a single fiber fineness of 10 denier or less. For the bulletproof fabric, the value of .alpha. calculated by expression (1):.alpha.=N.multidot.D/1000 (1)where N is the density in warp of fabric (yarns/inch) and D is the total fineness (d), is in the range of from 8.5 to 10.5, and the air permeability of the fabric satisfies expression (2):P.ltoreq..alpha..sup.2 /?7+D.sup.(1/2N) ! (2)where P is the air permeability (cc/cm.sup.2 /s) as defined in JIS L 1079 5-20. Also provided is a process for producing such a bulletproof fabric.

Abstract: Antinoise and antifragmentation plates based on acrylic polymers containing filaments of plastic material placed at a distance comprised between 20 and 35% of the thickness with respect to the surface opposite to impact.

Abstract: Semifinished material consisting of symmetrically-needled glass-fiber mat impregnated with a thermoplastic polymer. The glass mat can be made by, for instance, needling continuous filament web from above and below at the same time with a double needling machine.