Abstract: An object is to provide a process for producing a carbon nanotube (CNT) reinforced composite material, wherein CNT is homogeneously dispersed in a resin to obtain the composite material having an excellent mechanical strength. Hydrophilic CNTs 12 are dispersed in a first solvent 11 to prepare a first dispersion liquid 13. The dispersion liquid 13 and a synthetic resin raw material 15 are added to a second solvent 14 and the resulting mixture is stirred to prepare a third dispersion liquid 17 where a second dispersion liquid 16 in which the synthetic resin raw material 15 is dissolved in the dispersion liquid 13 is dispersed in the solvent 14. The solvents 11 and 14 are removed from the dispersion liquid 17 to obtain a mixture of the hydrophilic CNTs 12 and the synthetic resin raw material 15. The mixture is molded to obtain the composite material in which the synthetic resin is reinforced with the hydrophilic CNTs 12.

Abstract: The invention is to provide a rubber composite and tire using the rubber composite, which, when the rubber composite is used as the tread rubber of a tire, enables the tire to have high wear resistance and hence have a long life while presenting a low rolling resistance and enables an automobile that uses the tires to reduce fuel consumption during traveling. The rubber composite of the invention comprises 100 parts by weight of a rubber component composed of at least one kind of rubber, selected from a group of natural rubber, synthetic isoprene rubber and synthetic diene rubber and 10 to 100 parts by weight of a carbon black blended therein, the carbon black is specified to satisfy the relation X/Y?0.84, where X is the mercury intrusion specific surface area (m2/g), measured by mercury porosimetry and Y is the CTAB specific surface area (m2/g). The tire of the invention is one that uses the above rubber composite as its tread portion.

Abstract: A carbon black friendly to the global environment and a rubber composition containing the same, that is, a carbon black obtained from, as a starting material, a tall oil having an alkali metal ion concentration of 1000 ppm or less and a rosin content of 5 to 90% by weight and a rubber composition containing the same.

Abstract: Process for the production of an electrically conducting carbon nanotube polymer composite material with reduced surface resistance, in which carbon nanotubes are dispersed in a polymer melt in a twin-shaft screw extruder to form a mixture, and the mixture is then extruded.

Abstract: The present invention provides a process for the preparation of Fast Reheat (FRH) bottle grade polyethylene terephthalate (PET) resin by dispersing micron-sized carbon black in monoethylene glycol in the presence of dispersing agents and adding nano-sized particles of ferric oxide and metallic antimony to obtain a mixed carbon slurry followed by the preparation of a polymer slurry of pure terepthalic acid, mono ethylene glycol, isopthalic acid in the presence of a polymerisation catalyst and color toners, said carbon slurry and polymer slurry are added to obtain an addition mixture, which is followed by esterification and polymerisation in the presence of heat stabilizing additives to obtain Fast Reheat (PET) Resin.

Abstract: Electrical, thermal and mechanical applications are provided for nanocomposite materials having low percolation thresholds for electrical conductivity, low percolation thresholds for thermal conductivity, or improved mechanical properties.

Abstract: A friction material for a synchronizer ring comprises (A) a petroleum coke with an ash content of 0.1 mass % to 8 mass % or (B) a pitch coke with an ash content of 0.1 mass % to 8 mass %, more preferably (C) a calcined petroleum coke with an ash content of 0.1 mass % to 1 mass % or (D) a foundry coke with an ash content of 5 mass % to 8 mass %. The friction material is effectively used for a synchronizer ring requiring high coefficient of dynamic friction.

Abstract: This invention relates to a dual phase rubber composition and pneumatic tire with a rubber sidewall thereof, namely a dual phased non-black colored rubber composition composed of a first pre-formed elastomer phase comprised of butyl-type rubber and EPDM rubber containing a dispersion therein of reinforcing filler comprised of a particulate amorphous precipitated silica and a second pre-formed elastomer phase comprised of a nanocomposite of natural rubber containing a dispersion therein of exfoliated clay platelets. Said exfoliated clay platelets may be substantially oriented within the tire sidewall in a parallel direction to each and may also be substantially oriented in an annular direction about the axis of the tire. The tire sidewall rubber composition may contain at least one additional elastomer which may be included in either or both of said elastomer phases. Such tire sidewall rubber composition may contain a non-black colorant pigment, such as for example a white colored titanium dioxide pigment.

Abstract: The present invention provides a rubber composition, which has improved gripping performance that is required in a competition tire, high hardness and high stiffness. Specifically, the present invention provides a rubber composition comprising 10 to 100 parts by weight of carbon black having nitrogen-adsorbing specific surface area of 160 to 300 m2/g, and 15 to 70 parts by weight of an oil, based on 100 parts by weight of a rubber component comprising 20 to 95% by weight of a styrene butadiene copolymer rubber having styrene content of at least 30% and vinyl content of at least 30% and 5 to 80% by weight of butadiene rubber, and silica in an amount of 20 to 100% by weight of the carbon black; wherein the total amount of the carbon black and the silica is 20 to 120 parts by weight.

Abstract: Aryl-substituted conjugated polymers are described having improved properties. The polymers include a polymer backbone that includes heterocyclic repeat units. At least some of the heterocyclic repeat units have an aryl substituent attached thereto and at least some of these aryl substituents have a branched alkyl substituent attached thereto. The conjugated polymer are well-suited for use in a variety of electronic devices, including photovoltaic cells, light-emitting diodes, and transistors. Tunability of material, spectroscopic, and/or electronic properties is possible.

Abstract: Disclosed herein is a method for preparing a molding material for a fuel cell separator by dissolving an epoxy resin, a hardener and other additives in acetone and mixing a planar expanded graphite powder with the solution. Further disclosed are a molding material prepared by the method and a fuel cell separator produced from the molding material. The fuel cell separator shows very low gas permeability, superior electrical conductivity, sufficient strength, and maximized uniformity throughout the overall structure of the finished product.

Abstract: Disclosed herein is a method of manufacturing an electrically conductive composition comprising reducing the viscosity of a molten masterbatch to form a reduced viscosity molten masterbatch; and mixing the reduced viscosity molten masterbatch with a polymer to form the electrically conductive composition. Disclosed herein too is a method of manufacturing an electrically conductive composition comprising mixing a molten masterbatch with a first polymer in a first extruder, wherein the first polymer has a melt viscosity that is lower than the melt viscosity of the molten masterbatch; reducing the melt viscosity of the molten masterbatch to form a reduced viscosity molten masterbatch; and mixing the reduced viscosity molten masterbatch with a second polymer in a second extruder to form the electrically conductive composition.

Abstract: A solvent system for a conjugated polymer that includes at least two different solvents, at least one first solvent and at least one second solvent wherein the second solvent comprises a heterocyclic ring to improve the characteristics of materials made therefrom. Use of the solvent system to improve the electronic and/or optoelectronic characteristics of materials that include conjugated polymers, such as polythiophenes, optionally including n-acceptors, which are cast from a composition that includes the solvent system. In some embodiments the improved characteristics include higher absorption of solar radiation, increased current densities and higher power conversion efficiencies. As a result, materials made with the present solvent systems are well-suited for use in a variety of electronic devices including, photovoltaic cells, light emitting diodes, and transistors.

Abstract: Novel fabricated resin products are described and having suitability for laser welding applications. These contain a resin part for transmitting black colorant and a resin part for absorbing black colorant.

Abstract: An electroactive sensing or actuating material comprises a composite made from a polymer with polarizable moieties and an effective amount of carbon nanotubes incorporated in the polymer for a predetermined electromechanical operation of the composite when such composite is affected by an external stimulus. In another embodiment, the composite comprises a third component of micro-sized to nano-sized particles of an electroactive ceramic that is also incorporated in the polymer matrix. The method for making the three-phase composite comprises either incorporating the carbon nanotubes in the polymer matrix before incorporation of the particles of ceramic or mixing the carbon nanotubes and particles of ceramic together in a solution before incorporation in the polymer matrix.

Abstract: The present invention relates to a method for producing a resin composition having a crystallized and orderly arranged structure. The method comprises kneading an amorphous thermoplastic resin with a resin crystallization promoter to form a mixture, wherein the resin crystallization promoter comprises vapor grown carbon fibers, each fiber filament of the carbon fibers having a diameter of 0.001 ?m to 5 ?m and an aspect ratio of 5 to 15,000, the fibers having undergone a graphitization at 1,500° C. or higher, and subsequently subjecting the mixture to annealing at a temperature of from 55° C. higher than the glass transition point of the resin to a temperature 75° C. higher than the glass transition point of the resin. The crystallization promoter and annealing provide a thermoplastic resin composition, which, when molded, exhibits improved strength and tribological characteristics.

Abstract: A composition includes an elastomeric composition. The elastomeric composition can include an epichlorohydrin composition, and the elastomeric composition can be substantially free of a fluoroelastomer composition. The composition can further include a filler material which includes a reinforcement-grade carbon black. The composition can further include a peroxide curative.

Abstract: A polyamide molding composition with the following constitution is described: (A) from 30 to 100% by weight of at least one 10T/6T copolyamide, where this is composed of (A1) from 40 to 95 mol % of 10T units, formed from the monomers 1,10-decanediamine and terephthalic acid (A2) from 5 to 60 mol % of 6T units, formed from the monomers 1,6-hexanediamine and terephthalic acid (B) from 0 to 70% by weight of reinforcing materials and/or fillers (C) from 0 to 50% by weight of additives and/or further polymers where the entirety of components A to C is 100%, with the proviso that in component (A) up to 30 mol %, based on the entirety of the dicarboxylic acids, of the terephthalic acid can have been replaced by other aromatic, aliphatic, or cycloaliphatic dicarboxylic acids, and with the proviso that in component (A) up to 30 mol % of 1,10-decanediamine and respectively 1,6-hexanediamine, based on the entirety of the diamines, can have been replaced by other diamines, and with the proviso that not more than 3

Abstract: The invention relates to the use of copolymers with styrene-oxide-based, vinyl-functionalized polyethers for preparing aqueous pigment preparations.

Abstract: A carbon fiber composite material including: a thermoplastic resin; carbon nanofibers dispersed in the thermoplastic resin; and dispersing particles which promote dispersion of the carbon nanofibers in the thermoplastic resin.

Abstract: The invention provides a method for the preparation of a suspension of de-agglomerated carbon nanotubes, comprising mixing agglomerated carbon nanotubes with a block copolymer. Further, a powder of de-agglomerated carbon nanotubes is provided, that can be easily redispersed to obtain a suspension of untangled carbon nanotubes. The invention also relates to the use of the provided materials in the preparation of composites, and in electronics.

Abstract: A composition comprises, based on the total weight of the composition: from 10 to 80 wt. % of a modified polybutylene terephthalate copolymer that (1) is derived from polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers and (2) has at least one residue derived from the polyethylene terephthalate component; from 10 to 80 wt. % of a polycarbonate; from 0 to 20 wt. % of an impact modifier; from 1 to less than 25 wt. % of a reinforcing filler; from 0.1 to less than 2.5 wt. % of a fibrillated fluoropolymer; from 0 to 5 wt. % of an additive selected from the group consisting of antioxidants, mold release agents, colorants, quenchers, stabilizers, and combinations thereof. The composition has a heat deflection temperature of at least 110° C., measured in accordance with to ASTM D648 on 3.2 mm thick molded bars at 0.455 MPa.

Abstract: Disclosed is a polyolefin resin composition comprising 100 parts by weight of component (A), 0.001 to 10 parts by weight of component (B) and 0.01 to 100 parts by weight of component (C): component (A): polyolefin resin; component (B): carbon black which satisfies the following requirements (1) and (2): requirement (1): containing a volatile component in an amount of less than 0.2% by weight as measured by the method provided in JIS K6221; requirement (2): containing at least one element selected from the group consisting of iron, nickel, copper, cobalt, aluminum, manganese and vanadium in an amount, based on the weight of the carbon black, of 4 ppm or less; component (C): stabilizer.

Abstract: A carbon nanotube composite includes a carbon nanotube and a conjugated polymer. The carbon nanotube composite has a liquid crystalline property and a thin film prepared by rubbing-treating a solution of the carbon nanotube composite has a good alignment property and thus can be used in manufacturing carbon nanotube (CNT) thin film transistors (TFTs).

Abstract: A material and method for making long fiber filled thermoplastics with improved additive evenness and physical properties that includes a fiber-filled thermoplastic resin and a coating layer that contains the one or more additives to eventually be dispersed in the molded article. The coating layer is added in a manner such that the coating does not substantially intermix with the thermoplastic resin to form the long fiber-filled thermoplastic material. The long fiber-filled thermoplastic material may then formed into a molded article using the long glass fiber-filled thermoplastic material. Since the long fiber-filled thermoplastic material is not formed into pellets prior to formation into the article, the problems associated with prior art methods regarding dispersion of the additives are avoided and the resulting molded article has improved additive evenness and characteristics as compared to prior art molded articles formed from a dry blend of pellets.

Abstract: The present invention relates to a method of producing a high strength and high modulus elongated product comprising the steps of (a) making a composition comprising a semi-crystalline polymer and carbon nanotubes, (b) extruding said composition into an elongated product, and (c) stretching the product below the melting point of the polymer, wherein in step (a) the composition is a colloidal dispersion of nanotubes in a solution of the polymer. The advantages of the invention include production of elongated products, like fibers with higher tensile properties, especially strength, with a lower concentration of nanotubes than with a known method. The invention also concerns a high strength elongated product containing nanotubes obtainable by the method according to the invention, especially a polyolefin fiber containing nanotubes having a tensile strength of higher than 3.0 GPa.

Abstract: A cathodic protection polymeric compound is disclosed. The compound has flowable material to serve as a binder, carbonaceous conductive media dispersed in the flowable material, sacrificial metal particles also dispersed in the flowable material. The carbonaceous conductive media serve as a carbon-based electron transfer agent and are in the form of particles, platelets, fibers, tubes, or combinations thereof. A galvanic circuit is formed by the metal particles serving as anodes, a metal substrate to be protected serving as the cathode, and the conductive media serving as the electron transfer agent. The flowable material can also include an ionically conductive or an inherently conductive polymer to further enhance the galvanic circuit.

Abstract: A method of producing a carbon black composite material includes: a step (a) of mixing an elastomer and carbon black to obtain a composite elastomer; and a step (b) of mixing the composite elastomer and a matrix material to obtain a carbon black composite material in which the carbon black is uniformly dispersed in the matrix material.

Abstract: The present invention has its object to provide a resin composition excellent in gas barrier properties, mechanical strength and elasticity and further showing only a slight extent of gravity deformation under high temperature conditions. The invention relates to a resin composition which comprises an isobutylene-based polymer (A), an isobutylene-based block copolymer (B) comprising a polymer block (b1) the constituent monomer(s) of which is(are) an aromatic vinyl compound(s) and a polymer block (b2) the constituent monomer(s) of which is(are) isobutylene, and a filler (C). This composition can be used as a sealant, in particular as a hot melt sealant for double glazing units, and as a hot melt spacer material for double glazing units.

Abstract: The present invention relates to a plastics molding composition based on polyarylene sulfide and/or on liquid-crystalline plastic, where the molding composition comprises carbon black and graphite and/or metal powder, the carbon black has a specific surface area of from 500 to 1500 m2/g, and a dibutyl phthalate value of from 100 to 700 ml/100 g, and the graphite has a specific surface area of from 1 to 35 m2/g. The molding compositions of the invention have good conductivities, and better flowabilities and mechanical properties.

Abstract: The invention relates to a polymer material comprising 99 to 20 parts by weight of polymer(s), 0.1 to 80 parts by weight of carbon nanotubes, and 0.05 to 80 parts by weight of at least one type of dispersant selected from A-B-C, B-C and/or C-B-C block copolymers, wherein each block is bonded to the other by means of a covalent bond, C is a chemical and/or physical interaction with the polymer material and in preferably is miscible therwith, B is not miscible with the polymer material and with the block B and the glass transition temperature thereof. Tg is less than the polymer material use temperature, A is not miscible with the polymer material and with the blocks B and the block C and the Tg or the fusion temperature Tf is greater than the Tg of B.

Abstract: Strings configured for use in sports racquets and musical instruments are fabricated as a plastic core wrapped with one or more filaments of plastic. The strings are coated with a material composite that includes rigid nanoparticles, and lubricated nylon. The rigid nanoparticles may include clay or carbon nanotubes. The strings are coated with the material composite using various processes that result in a coating thickness of between 0.1 and 200 ?m. The material composite may further include impact modifiers. The strings experience extended life due to reduced frictional wear and improved mechanical properties.

Abstract: An objective of the present invention is to provide a block copolymer which is excellent in processability at the time of preparing a rubber composition and leads to a cross-linked rubber composition excellent in tensile property, wearing resistance, weatherability, ozone resistance and heat aging resistance when it is cross-linked, a rubber composition containing the block copolymer and a molded product. The block copolymer of the present invention comprises two polymer blocks each having an ethylenic unsaturated bond and other polymer block which is interposed between two polymer blocks, has a uniform weight average molecular weight in the range from 5,000 to 100,000. The weight average molecular weight of the polymer block having the ethylenic unsaturated bond is preferably in the range from 1,000 to 20,000.

Abstract: The present invention provides a rubber composition, in which reversion when vulcanizing at a high temperature is inhibited without losing rubber properties and which is obtained by efficiently crosslinking with sulfur, and a pneumatic tire using the rubber composition. Specifically, the present invention relates to a rubber composition comprises a rubber component containing diene rubber and fluorinated graphite and a pneumatic tire using the rubber composition. The rubber composition preferably contains 0.1 to 50 parts by weight of fluorinated graphite based on 100 parts by weight of the rubber component containing diene rubber.

Abstract: A method comprising forming and grafting polymers on carbon nanotubes, a functionalized product and product dispersion produced by the method, a method of forming composites from the functionalized carbon nanotubes, and the composites produced therefrom.

Abstract: A conductive composition comprises a poly(arylene ether), a polyamide, a conductive additive, and an impact modifier, wherein the composition demonstrates less than or equal to 0.0150 grams of composition buildup on the die face per minute of running time per meter of die opening perimeter after extruding the composition at a steady state for five minutes.

Abstract: A process of making dispersant-coated carbon particles comprising the steps of providing a liquid mixture comprising carbon particles and a dispersant, and imparting a shear force to the liquid mixture to thereby form said dispersant-coated carbon particles.

Abstract: A fusible conductive ink for use in manufacturing microfluidic analytical systems includes micronised powder containing platinum and carbon, poly(bisphenol A-co-epichlorohydrin)-glycidyl end capped polymer, and a solvent. In addition, the ratio of micronised powder to poly(bisphenol A-co-epichlorohydrin)-glycidyl end capped polymer is in the range of 3:1 to 1:3. The fusible conductive inks can be employed in the manufacturing of microfluidic systems to form electrodes, electrically conductive traces and/or electrically conductive contact pads.

Abstract: Polymers are filled with from 1 to 8% by weight of an expanded graphite having a BET surface area of at least 120 m2/g. Processes for preparing such polymers include forming a dispersion of the expanded graphite in a polymerizable monomer or curable polymer precursor, and polymerizing or curing same in the presence of the expanded graphite. Electroconductive polymers can be prepared in this manner using low levels of the expanded graphite material.

Abstract: The invention is directed to a flame retardant additive comprising carbon based nanotudes having flame retardant properties. The flame retardant additive of the invention includes up to about 25% by weight of the carbon-based nanotube. An embodiment of the invention is directed to a polymer including the flame retardant additive of the invention which comprises an effective amount of carbon based nanotubes. The invention also relates to a method of improving the flame retardant properties of a material, the method including adding to the material an effective amount of the flame retardant additive of the invention.

Abstract: Novel transparent composites composed of single wall carbon nanotubes incorporated into the matrix of a polymer are utilized in services wherein the composites are exposed to ionizing radiation, including galactic cosmic radiation. Accordingly, the composites are useful in deep space applications like space vehicles, space stations, personal equipment as well as applications in the biomedical arts and atom splitting research. The composites can be modified with organic dyes containing at least one phenyl ring and the resulting doped composite is useful as a radiation detector. The preferred polymer is poly(4-methyl-1-pentene).

Abstract: A method of producing a carbon fiber composite resin material including (a) a first mixing step, (b) a second mixing step, and (c) a step of curing a second mixture. In the first mixing step (a), an epoxy resin is mixed with an epoxidized elastomer to obtain a first mixture. In the second mixing step (b), vapor-grown carbon fibers having an average diameter of 20 to 200 nm and an average length of 5 to 20 micrometers are mixed with the first mixture to obtain a second mixture in which the vapor-grown carbon fibers are dispersed. In the step (c) of curing the second mixture, the second mixture is cured to obtain a highly rigid carbon fiber composite resin material.

Abstract: A laser-decomposable resin composition includes (A) at least one selected from the group consisting of a carbon nanotube and a fullerene; and (B) a binder polymer.

Abstract: A method of fabricating an aligned nanoparticle channel, including a first step of forming a polymer nanoparticle blended composite by dispersing nanoparticles in a first polymer; a second step of forming a binary polymer nanoparticle blended composite by melt-blending the polymer nanoparticle blended composite with a second polymer, which is immiscible with the first polymer, and then cooling the mixture; and a third step of forming an aligned nanoparticle channel by applying a shear force to the binary polymer nanoparticle blended composite such that the nanoparticles dispersed in the first polymer are aligned in a direction parallel to the shear force, and an aligned nanoparticle channel fabricated using the method.

Abstract: An aromatic carbonate polymer composition having improved thermal stability consisting of an aromatic carbonate polymer such as a polycarbonate or polycarbonate/polyester blend and an impact modifier which is free of alkali materials which catalytically degrade a polycarbonate. Also an impact modifier which is preferably of a shell-core structure prepared by the emulsion polymerization process and has a pH of about 3 to about 8. A preferred emulsifier is an alkyl sulfonate having an alkyl group of C6-C18 carbons.

Abstract: Provided is a composition comprising a rubber and a polymer nano-particle comprising a poly(mono-vinyl aromatic) core and a poly(mono-vinyl aromatic-conjugated diene) surface layer, wherein the core of the polymeric nano-particle has a glass transition temperature (Tg) of between about 150° C. and about 600° C. Also provided is a composition comprising at least two (mono-vinyl aromatic-conjugated diene) copolymer rubbers and a polymeric nano-particle comprising a poly(mono-vinyl aromatic) core and a poly(mono-vinyl aromatic-conjugated diene) surface layer; wherein the core of the polymeric nano-particle has a glass transition temperature (Tg) of between about 150° C. and about 600° C., and the poly(mono-vinyl aromatic-conjugated diene) surface layer of the polymeric nano-particle comprises a mono-vinyl aromatic content that is between about 50 percent and about 150 percent that of the mono-vinyl content of one of the (mono-vinyl aromatic-conjugated diene) copolymer rubbers.

Abstract: A vapor grown fine carbon fiber, each fiber filament of the carbon fiber comprising, in its interior, a hollow space extending along the fiber filament, and having a multi-layer structure, an outer diameter of 2 to 500 nm, and an aspect ratio of 1 to 100, wherein the fiber filament comprises a cut portion on its surface along the hollow space, a production method therefor, and electrically conductive material, a secondary battery and a gas occlusion material using the carbon fiber. The fine carbon fiber of the present invention is excellent in properties such as occlusion of gases such as hydrogen and methane, smoothness, electrical conductivity and thermal conductivity, and also excellent in dispersability, wettability and adhesion with a matrix such as resin.

Abstract: The present invention relates to a process for preparing CNTs by bringing a carbon source into contact with a multivalent metal and/or metal-oxide-based catalyst deposited on an inorganic substrate having a BET specific surface area of greater than 50 m2/g. The CNTs obtained may be used as agents for improving the mechanical and electrical conductivity properties in polymeric compositions.

Abstract: A method of producing a carbon-based material includes steps (a), (b) and (c). In the step (a), an elastomer and at least a first carbon material is mixed and the first carbon material is dispersed by applying a shear force to obtain a composite elastomer. In the step (b), the composite elastomer is heat-treated to vaporize the elastomer, and a second carbon material is obtained. In the step (c) the second carbon material is heat-treated together with a substance including an element Y to vaporize the substance including the element Y, a melting point of the element Y being low.

Abstract: The present invention relates to a rubber composition comprised of diene based elastomer, precipitated silica, particulate low molecular weight alcohol-adsorbing (e.g. alkanol-adsorbing) activated carbon and coupling agent comprised of at least one of organopolyalkoxysilane polysulfide (e.g organopolyalkoxysilyl polysulfide such as a bis(3-trialkoxysilylalkyl polysulfide) and organoalkoxymercaptosilane. The invention further relates to a tire having a component of such rubber composition.