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4690851 |
Fabric based on glass and carbon fibers and articles comprising such a fabric
A fiber-based fabric having a high fire resistance, a low weight per unit area and a good mechanical strength, comprising a mixture of: (a) about 50-90% by weight of textured glass fibers, ...
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4689188 |
Method of preparing fiber reinforced ceramic material
Alternate layers of mats of specially coated SiC fibers and silicon monotapes are hot pressed in two stages: In the first a die is heated to about 600° C. in a vacuum furnace and maintained at...
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4686135 |
Composite sheet material
A stainproof, flame-resistant composite sheet material including at least one silicone polymer layer containing a silicone resin or rubber and optionally a flame-resistant inorganic filler and at...
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4685236 |
Graphite/metal matrix gun barrel
A gun barrel is constructed of an inner tubular liner of hard material forming the bore of the barrel and an outer jacket of carbon-fiber reinforced metal matrix material in which the fibers are...
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4678700 |
Fibrous composite materials
A fibrous composite material comprising carbon fibres and chemically delaminated vermiculite lamellae and production of the material by applying a suspension (preferably an aqueous suspension) of...
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4668578 |
Surface treated metallic filaments
Metallic filaments, esp., metal-coated fibers, are surface treated by a combination of silane and poly (vinyl acetate) and exhibit improved processability when used in the form of filaments, yarns...
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4668579 |
Interstitially protected oxidation resistant carbon-carbon composite
The carbon fiber bundles in a carbon-carbon composite are protected against oxidation by coating the fiber bundles with at least one protective layer consisting of an underlayer portion of boron...
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4663230 |
Carbon fibrils, method for producing same and compositions containing same
This invention concerns an essentially cylindrical discrete carbon fibril characterized by a substantially constant diameter between about 3.5 and about 70 nanometers, e.g. between about 7 and 25...
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4663001 |
Electroconductive polymers derived from heterocycles polycyclic monomers and process for their manufacture
Electrically conductive polymers derived from heterocyclic polycyclic monomers formed of at least two cycles of five condensed members, each cycle containing one heteroatom, as well as a method of...
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4661406 |
Strength element for fiber optic cables
A strength element for a fiber optic transmission cable is integrally formed from a fiber reinforced resin material and it comprises a longitudinally extending central portion and a plurality of...
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4659616 |
Fiber material for the manufacture of coatings for elastic calender rolls and improved calender rolls
The present invention relates to a fibrous material for coating supercalender rolls to improve the resistance to scorching, the fibrous material containing conventional fibers in combination with...
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4659623 |
Acrylic fibers for producing preoxidized fibers
Acrylic fibers suitable for producing preoxidized fibers free from coalescence which have a fluorine-containing surface active agent or further have at least one phosphoric surface active agent...
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4659610 |
Structures made using an inorganic-binder composition
An inorganic binder composition is employed in combination with fillers comprising particulates, fibers, filaments or yarn to form a structure. The coating is prepared from colloidal silica,...
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4654264 |
Method of sizing carbon fiber and a carbon fiber composition
A sizing agent for use with carbon fibers is described, comprising a compound of formula (I) ##STR1## wherein R is --OH or ##STR2## n is 8 to 100, preferably 10 to 50.
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4645297 |
Fiber reinforced resin coated optical fiber and process for producing the same
An optical fiber coated with a reinforcing material having an excellent heat resistance and a process for producing the same are disclosed. The reinforcing material comprises continuous filaments...
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4642271 |
BN coating of ceramic fibers for ceramic fiber composites
A ceramic fiber composite material comprised of boron nitride coated cera fibers embedded in a ceramic matrix. The boron nitride coating limits both physical bonding and chemical reaction between...
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4642264 |
Thermoset polymers and prepolymers with rapid curing, obtained by polycondensation of pyridine derivatives and aromatic dialdehydes and adding of phenolic compounds
The object of the present invention are new thermoset resins having quickened curing, a process for their preparation, and their applications. The resins according to the invention consist, at...
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4632655 |
Embossing calender for thermoplastics films
An embossing calender for thermoplastics films in which the film is embossed by passage between an embossing roller and a counter-roller and in which the rollers can be rapidly changed or replaced....
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4628001 |
Pitch-based carbon or graphite fiber and process for preparation thereof
A pitch-based carbon or graphite fiber having a leafy lamella arrangement in at least 30% of the fiber cross-sectional area and having a tensile strength of at least 300 kg/mm 2 . The fiber is...
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4628002 |
Silicon carbide monofilament for transverse composite properties
This invention is directed to a surface treatment for SiC monofilament developed for the purpose of increasing the transverse strain-to-failure of composites, particularly aluminum composites. The...
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4618529 |
Inorganic fiber-reinforced ceramic composite material
An inorganic fiber-reinforced ceramic composite material comprising a matrix of a ceramic and inorganic fibers as a reinforcing material, characterized in that (a) the inorganic fibers are...
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4614678 |
Flexible composite material and process for producing same
Composite material comprising a flexible sheath covering a roving of fibers impregnated to the core with a finely powdered thermoplastic, the melting point of which thermoplastic is equal to or...
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4609449 |
Apparatus for the production of continuous yarns or tows comprising high strength metal coated fibers
Yarns or tows of high strength composite fibers the majority of which comprise a core of carbon or the like and a thin, uniform firmly adherent electrically conductive layer or an...
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4606354 |
Gold coated carbon implant and method of treating arthritis therewith
An implant for the treatment of the pain of arthritis which comprises a carbon fiber which has a discontinuous coating of gold thereon, exposing the carbon in patches. The carbon and gold form a...
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4600642 |
Radar wave dipole of copper coated carbon fibers
Small lengths of conductors, cut to the appropriate size are used as radar "chaff" or passive reflectors to give spurious returns on an enemy radar and thereby act as an electronic countermeasure....
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4600617 |
Continuous fiber inserts for injection molded parts
A process for incorporating continuous graphite fiber reinforcement impregnated with polyamide-imide polymer onto injection molded polyamide-imide parts. These impregnated parts are useful as...
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4598017 |
Composite magnetic disk with Si and SiC substrate
The invention relates to a composite magnetic disk for magnetic recording, which consists of an annular core of polymeric material to which is bonded at least one disk of reaction-bonded silicon...
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4596741 |
Carbon fibers having improved surface properties and a method for the preparation thereof
The invention provides carbon fibers coated on the surface with a layer of an amorphous silicon carbide of the composition Si x C y , x and y each being a positive number with the proviso that the...
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4595620 |
Dead-folded articles from fiber-reinforced plastics
Dead-folded articles are disclosed which comprise a dead-foldable fiber reinforced plastic sheet. Said sheet has a thickness from about 1 to 50 mils. The reinforcing fibers in the sheet are short...
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4590122 |
High conductivity graphite material with electrically conductive filaments wrapped around warp and fill elements
A woven, drapable, formable graphite fabric (10) comprising essentially graphite warp multifilament elements (11) and fill multifilament elements (12), wherein an electrically conductive filament...
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4585704 |
Electrically conductive Si.sub.3 N.sub.4 --C series amorphous material and a method of processing the same
Electrically conductive Si 3 N 4 --C series amorphous material having excellent thermal and mechanical characteristics is produced in a massive size by chemical vapor deposition.
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4585696 |
Superconducting fiber
A superconducting fiber of a superconducting fiber bundle, in which a base layer of a carbide or oxide is applied to the outer surface of a carrier fiber and subsequently a superconducting layer is...
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4581275 |
Base cloth for reinforcement
The present invention provides a base cloth for reinforcement produced by winding a weldable yarn on either one of a warp or weft or the both at a definite interval, arranging the warp and weft in...
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4576827 |
Electrostatic spray coating system
An electrostatic spray system including a spray device having a coating-charging electrode, a source of high voltage electrostatic potential, and a resistive path for safely transmitting high...
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4574108 |
Fiber reinforced composite
Fibers and plastic materials reinforced with these fibers which have a diameter that varies along the fiber axis are provided. The fibers increase the strength of the material by reducing fiber...
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4563391 |
Ribbon rod for use in oil well apparatus
A continuous length of reinforced plastic ribbon rod is wound on a reel and replaces a conventional oil well sucker rod formed of long sections of steel rods. The reinforced plastic has a high...
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4559862 |
Packing material
A packing material comprises glass or other inorganic fibers in combination with organic fibers such as sintered polytetrafluoroethylene (TFE) or other selected fibers with or without an...
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4555113 |
Shaft and a method for producing the same
A shaft produced by the steps of rolling inorganic fiber cloths around a plastic resin base body into a cylindrical shape to form a shaft body, coiling two sets of carbon cloth tapes in the...
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4555446 |
Carbon fiber and process for preparing same
Carbon fiber superior in processability and in physical properties as a composite is obtained by treating carbon fiber with an epoxy resin composition incorporating a polyalkylene ether glycol...
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4552815 |
Prestressing elements coated with plastic material and process for making them
Prestressing elements having a two-layer plastics covering, the inner layer being moldable, storage-stable at room temperature and thermally curable, and the outer layer consisting of a...
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4539249 |
Method and apparatus for producing blends of resinous, thermoplastic fiber, and laminated structures produced therefrom
Reinforced structures of graphite, fiberglass, and the like, together with thermoplastic resinous fibers such as in ribbon, filament and monofilament form are produced. The graphite fiber is...
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4536438 |
Fibre reinforced composites
A fibre reinforced composite comprises one or more layers of unidirectional non-woven fibres alternated with one or more layers of woven fibres, preferably in a satin, embedded in a plastics matrix.
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4536448 |
Preoxidized fiber and process for producing the same
A preoxidized fiber suitable for producing carbon fiber, comprising preoxidizing an acrylic fiber having thereon an ammonium salt of a fatty ester represented by formula [A] and [B] ##STR1##...
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4535027 |
High strength polyacrylonitrile fiber and method of producing the same
Polyacrylonitrile (PAN) fiber of high strength (tensile strength≥20 g/d) produced from a polymer composed mainly of acrylonitrile (AN) and having a weight average molecular weight not less than...
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4531354 |
Thermally curable wet-impregnated rovings
Thermally curable wet-impregnated rovings in which the fibers of the roving are impregnated with liquid polyepoxides lacking polymerizable unsaturation and having dispersed therein a latent...
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4532275 |
Fiber-reinforced composite materials
A fiber-reinforced composite material comprising a resin and 20 to 90% by weight, based on the composite material, of reinforcing fibers, said reinforcing fibers comprising fibers of a wholly...
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4532182 |
Silicon carbide whisker sheet composites
A sheet comprising a uniformly dispersed coating of silicon carbide whiskers is produced by: (a) deagglomerating a whisker mass; (b) forming a slurry of deagglomerated whiskers; (c) coating the...
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4530875 |
Silicon carbide whisker composite material with low non whisker particle content and method of manufacture thereof
A composite material is made from a whisker body of silicon carbide whiskers containing not more than 5% by weight of non whisker particles of diameter greater than 150 microns, with a mass of...
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4522883 |
Circumferentially wrapped carbon-carbon structure
A carbon-carbon structure useful for fabricating a nosetip for a reentry vehicle, which consists essentially of a central core, a plurality of layers of woven carbon fabric circumferentially...
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4520623 |
Activated carbon fiber spun yarn
An activated carbon fiber spun yarn having excellent workability and adsorptive property is disclosed. The activated carbon fiber spun yarn comprising activated carbon fibers having a specific...
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