Abstract: Composite material sheets containing conductive fibers are laminated, and release films are interposed between the sheets so as to extend from one end to the center of the sheets. The sheets are heated under pressure to shape a composite material. Discrete conductive wires through which a measurement current is passed are connected to end surfaces of the respective layers in the composite material on the side on which the release films are interposed. A common conductive wire through which the measurement current is passed is connected to a surface of one of an uppermost layer and a lowermost layer at an end of the composite material opposite to the side on which the release films are interposed. A current is passed between the common conductive wire and the discrete conductive wires. Currents in the respective layers are sequentially or simultaneously measured using an ammeter.

Abstract: The invention relates to an adsorptive filtering material with biological and chemical protective function, in particular with protective function with regard to both chemical and biological poisons and noxiants, such as chemical and biological warfare agents, the adsorptive filtering material having a multilayered construction comprising a first outer supporting layer and a second outer supporting layer and an adsorptive layer disposed between the two supporting layers, the adsorptive filtering material further comprising at least one catalytically active component, the first outer supporting layer and/or the second outer supporting layer being provided with the catalytically active component. The adsorptive filtering material is particularly useful in NBC protective materials (for example NBC protective apparel) and also for production of filters.

Abstract: A reinforced carbon-carbon (RCC) composite material has improved impact resistance. The RCC composite material is formed from a fiber reinforcement of layers or plies of thin ply carbon fiber fabric impregnated with a carbon matrix. Carbon nanotube reinforcement in the matrix further improves impact resistance. The stacking arrangement of the plies of the thin ply fabric also further improves impact resistance.

Abstract: A light-weight, highly rigid, high-strength environment-friendly fiber-reinforced plastic (hereinafter, CFRP) board having a surface quality that can endure long-term use suitable for use in automobiles and the like is provided. A method for making the same is also provided. The CFRP board includes a board member formed from a woven fabric as a reinforcing base material, the woven fabric including carbon fibers; and at least one of a gel coat and a paint provided on the board member, wherein the NSIC value of the surface of the CFRP board is 30% or more.

Abstract: A method and apparatus form electrical connections between electronic circuits and conductive threads (102, 104, 106, 108) that are interwoven into textile material (130). Electronic circuits (128), such as semiconductor dies, are connected to a carrier (132) and electrical connections (136) are made to conductive connection areas (110, 112, 114, 116) on the carrier (132). Conductive stitching (202, 204, 206, 208) provides electrical contacts for both the conductive connection areas (110, 112, 114, 116) on the carrier (132) and the conductive threads (102, 104, 106, 108) that are interwoven into the textile material (130). Optionally, a thin, flexible substrate material (132) is perforated during the stitching process.

Abstract: A light-weight, highly rigid, high-strength environment-friendly fiber-reforced plastic (hereinafter, CFRP) board having a surface quality that can endure long-term use suitable for use in automobiles and the like is provided. A method for making the same is also provided.

Abstract: A clothing material structure of fiber cloth containing PAN series activated carbon includes an air-permeable textile as a support layer and fiber cloth containing PAN series activated carbon as an adsorption layer. The support layer and the adsorption layer are bonded together to form the clothing material suitable for the hunter clothing and the protective clothing by way of bonding or needle punching. Accordingly, when the wearer's body heat and body odor try to pass through the clothing made from the material, the body heat may smoothly pass through the adsorption layer while the body odor is blocked and filtered out by the activated carbon fiber. Thus, the requirements of hunter clothing may be satisfied. Furthermore, the odors or toxins trying to pass through the adsorption layer may be filtered out, and the requirements of the chemically protective clothing and hunter clothing may be satisfied.

Abstract: A method of containment of odor and liquid in an inanimate place is disclosed by disposing in said place, a disposable absorbent structure in the form of sheet, this absorbent structure comprising an odor control means and having a water absorption capacity of at least 0.06 grams per square cm. This method is particularly suitable for kitchen applications like the control of liquid and odor in refrigerators. Suitable layered absorbent structures for use in inanimate places are also disclosed.

Abstract: A method for producing a carbon fiber composite layer having high strength is provided. The method includes steps of providing two carbon fibers layers having fibers in parallel with each other and disposed in a stacked form, and heating and pressing said two carbon layers simultaneously to form said carbon fiber composite layer. A structure of an acoustic diaphragm adapted to be used in a planar diaphragm speaker is also provided. The structure includes a bottom carbon fiber layer and a top carbon fiber layer disposed on the bottom carbon fiber layer, wherein the fibers of the top carbon fiber layer and the fibers of the bottom carbon fiber layer are parallel with each other.

Abstract: A material stock from which seals and packings may be formed is described; the material stock being relatively soft and compressible and cross section having a construction comprising a plurality of interlaced, as hereinbefore defined, flat section tapes having associated therewith a reinforcement. The tapes may include exfoliated graphite, paper, PTFE, mica, vermiculite as appropriate. The seal stock may have any desired cross sectional shape.

Abstract: The present invention discloses a method a method of making a material for thermal cores and the material so made. In particular, the present invention disclose a method including the steps of applying thermally conductive particles over at least a portion of a fiber layer, providing another fiber layer upon the fiber layer, and repeating the above steps as desired. In another aspect of the present invention is disclosed a method of making a thermally conductive material including applying thermally conductive particles upon at least a portion of a fiber prepreg layer, providing another fiber prepreg layer upon the fiber layer, repeating the above steps as desired, and bonding the fiber prepreg layers, including the thermally conductive particles, together. The material in accordance with the present invention includes a plurality of layers made of thermally conductive fibers bonded by a resin, and a plurality of interposed layers of resin having a high concentration of high conductivity particles therein.

Abstract: A novel flexible biregional carbonaceous fiber is disclosed comprising an inner core region of a thermoplastic polymeric material and an outer region of a carbonaceous sheath. The flexible biregional carbonaceous fibers are particularly characterized by having a ratio of the radius of the core region with respect to the total radius of the fiber (r:R) of from about 1:4 to about 1:1.05, a density of from about 1.45 to about 1.87 g/cm.sup.3, and a bending strain value of from greater than 0.01 to less than 50%. In a further embodiment of the invention, a biregional precursor fiber is disclosed having an inner core region of a thermoplastic polymeric material and an outer sheath region of a oxidation stabilized, thermoset polymeric material. The oxidation stabilized precursor fiber is characterized by having a density of from about 1.20 to about 1.32 g/cm.sup.3 The invention further resides in methods of making the biregional fibers.

Abstract: A main body of a hollow cylindrical member is formed of a wound preimpregnation sheet made of reinforcing fibers impregnated with synthetic resins. A synthetic resins layer with a metallic member is provided onto an outer periphery of the main body for reinforcing and/or decorative property. The metallic member is in the form of a thin film bonded to an outer periphery of the synthetic resins layer or a net-like metallic member embedded in the layer.

Abstract: The present invention provides a wet-friction material capable of extensive continuous sliding performance at very low slipping speeds without inducing shutter, squawk or chuggle. The present invention includes a friction material having a woven carbon fabric to which a resin, preferably a phenolic resin, has been applied. The phenolic resin is entirely contained within the strand and the strands are intentionally incompletely filled. This combination provides for maximum open area texture for gross flow and drainage, microporosity or microtexture for the destruction of any potential hydrodynamic films and at the same time provides an extremely strong and durable structural composite. The friction material may include an over and under stacking and integration of the less than completely filled strands which is more than adequate for even the severest loading applications.