Abstract: A method of producing a carbon fiber composite material including: (a) masticating an elastomer to reduce the molecular weight of the elastomer to obtain a liquid elastomer; (b) mixing the elastomer obtained in the step (a) and carbon nanofibers having an average diameter of 0.5 to 500 nm to obtain a mixture; (c) increasing the molecular weight of the elastomer in the mixture obtained in the step (b) to obtain a rubbery elastic mixture; and (d) mixing the rubbery elastic mixture obtained in the step (c) to disperse the carbon nanofibers in the elastomer by a shear force to obtain a carbon fiber composite material.

Abstract: This invention relates to a tire having a component of a rubber composition which contains a carbonaceous filler as a composite comprised of a disturbed crystalline structure which contains synthetic cubic (diamond) crystalline phase(s) combined with a significant amorphous phase content and which may also contain graphitic (hexagonal) crystalline phases. The crystalline phases are of a disturbed crystalline structure. The carbonaceous filler composite may therefore sometimes be referred to as a “disturbed crystalline/amorphous carbon material”. Such carbonaceous filler composite may be a product of, for example, an explosive detonation of a carbon-containing, oxygen-deficient explosive. Reinforcement of rubber compositions for components of tires is provided as a combination of such carbonaceous disturbed crystalline/amorphous carbon material together with rubber reinforcing carbon black aggregates and/or synthetic amorphous silica, and optionally with starch/plasticizer composite and/or short fibers.

Abstract: A novel and improved EPDM formulation for a solid propellant rocket motor is described wherein hexadiene EPDM monomer components are replaced by alkylidene norbornene components, and, with appropriate adjustment of curing and other additives, functionally required rheological and physical characteristics are achieved with the desired compatibility with any one of a plurality of solid filler materials, e.g., powder silica, carbon fibers or aramid fibers, and with appropriate adhesion and extended storage or shelf-life characteristics.

Abstract: A peroxide-crosslinked rubber composition having a superior anti-blooming property of a crosslinking agent and a high hardness containing (A) more than 60 parts by weight but not more than 95 parts by weight of rubber selected from NR, IR, SBR, BR, EPM, EPDM, silicone rubber and/or fluororubber and (B) 5 parts by weight but less than 40 parts by weight of a polar polymer having a solubility parameter (Sp value) of at least 17.6 (Pa1/2) and a weight average molecular weight of at least 100,000.

Abstract: Described are elastic polyurethaneurea fibres comprising a cationically modified carbon black as an additive, so that the colour of the fibre is distinctly changed. Also described are a process for producing coloured polyurethaneurea fibres and also their use for producing elastic fabrics and textile goods.

Abstract: A low cost method of fabricating bipolar plates for use in fuel cells utilizes a wet lay process for combining graphite particles, thermoplastic fibers, and reinforcing fibers to produce a plurality of formable sheets. The formable sheets are then molded into a bipolar plates with features impressed therein via the molding process. The bipolar plates formed by the process have conductivity in excess of 150 S/cm and have sufficient mechanical strength to be used in fuel cells. The bipolar plates can be formed as a skin/core laminate where a second polymer material is used on the skin surface which provides for enhanced conductivity, chemical resistance, and resistance to gas permeation.

Abstract: A rubber composition obtained by blending, into 100 parts by weight of a rubber, 10 to 100 parts by weight of carbon black surface-treated with a silane compound having an amino group (or groups), wherein at least 0.1 part by weight of the rubber ingredient is modified with maleic anhydride, whereby the heat buildup resistance and abrasion resistance of the rubber composition are enhanced and the scorch resistance is improved.

Abstract: A conductive thermosetting composition comprises a functionalized poly(arylene ether), an alkenyl aromatic monomer, an acryloyl monomer, and a conductive agent. After curing, the composition exhibits good stiffness, toughness, heat resistance, and conductivity, and it is useful in the fabrication of a variety of conductive components, including the bipolar plates of fuel cells.

Abstract: A tire is provided having a circumferential tread of a diene-based rubber composition reinforced with a silica-containing carbon black which contains domains of silica on its surface prepared by extended reactive mixing of said silica-containing carbon black with a coupling agent together with at least one elastomer. Said silica-containing carbon black is a carbon black which contains silica domains on its surface and said silica contains hydroxyl groups (e.g. silanol groups) on its surface, wherein said silica domains cover at least 50 percent of the carbon black surface. Said coupling agent is a bis(3-triethoxysilylpropyl) polysulfide having an average of from 2 to 4, alternately a more limited average of from 2 to 3 or from 2 to 2.6, connecting sulfur atoms in its polysulfidic bridge. In one aspect of the invention, it is preferred that said coupling agent is exclusive of a bis(3-trialkoxysilylalkyl) polysulfide having an average of greater than 3.5 sulfur atoms in its polysulfidic bridge.

Abstract: A pigment-dispersed aqueous recording liquid containing at least a pigment and a resin, which comprises from 60 to 200 parts by weight of the resin to 100 parts by weight of the pigment, wherein at least one of the resin is a water-dispersible urethane type resin, a weight fraction of a polyurethane urea part of which is at most 2.0 wt % to the urethane resin, and the pigment dispersed in the recording liquid has a dispersion particle size D50 of from 40 to 100 nm.

Abstract: Elastomer composites and elastomer blends comprising particulate fillers having selected structure and surface area values are disclosed as well as elastomer composites and elastomer blends having improved properties. Methods of making and using elastomer composites and elastomer blends are also disclosed.

Abstract: A gasket elastomer precursor of admixed fluoroelastomer particulate, curing agent, and metallic oxide reduction-agent optionally admixed with any of microspheres, inert particulate, PTFE particles. In one embodiment, the composition is applied to a substrate and cured to provide a fuel cell gasket. The admixtures provide a basis for designed cured admixtures having internally differentiated regions interbonded by cured elastomer.

Abstract: The present invention relates to an aqueous ink for ink jet printer recording including a water dispersion of water-insoluble vinyl polymer particles containing carbon black, wherein the carbon black has a volatile content of 5% or less at 950° C. and includes at least two kinds of carbon black differing from each other in at least one of a primary particle diameter, a specific surface area and a DBP absorption amount.

Abstract: This invention relates to preparation of nanocomposites comprised of elastomer and a dispersion of an at least partially exfoliated water swellable clay and to rubber compositions containing such nanocomposite and articles of manufacture which contain at least one component thereof. The nanocomposite is prepared by addition of a water suspension of water swellable clay particles to an anionic aqueous emulsion of elastomer particles to form a mixture to which an amine having at least two amine centers is added to intercalate and at least partially exfoliate the water swelled clay particles by an ion exchange within the galleries of the multilayered clay with cation exchangeable ion(s) and to aid in coagulating the elastomer and resultant clay particles to form said nanocomposite.

Abstract: The invention relates to a tire with a component composed of a rubber composition containing at least two diverse carbon blacks. In one aspect such tire is a heavy tire and such component is a tread for a heavy tire which contains at least two diverse carbon blacks to aid in providing an improved path for thermal conductivity for a heavy tire with its relatively thick cross section such as, for example, its relatively thick tread.

Abstract: There is provided a conductive curable resin composition comprising (A) a curable resin composition comprising an elastomer with a Mooney viscosity (ML1+4 (100° C.)) of 25 or greater at 2-80 wt % and (B) a carbon material, with a weight ratio of component (A) to component (B) of 70-5:30-95. The curable resin composition of component (A) preferably comprises (A1) an elastomer at 80-2 wt %, (A2) a radical reactive resin at 20-98 wt % and (A3) an organic peroxide at 0.2-10 parts by weight to 100 parts by weight of (A1+A2). Also provided are a process for production of a conductive cured resin by shaping and curing of the conductive curable resin composition, and a fuel cell separator, an assembly for a cell, an electrode or a heat releasing plate, obtained thereby.

Abstract: The present invention is directed to the provision of premixed aqueous compositions which are used to provide a paint composition of varying finish characteristics at the point of sale. Thus, the merchant distributing the paint composition made from the subject premixed compositions need only maintain inventory of four compositions. The particular compositions which are the subject of the invention exhibit stable characteristics during storage in their respective reservoirs. The compositions include a pigment composition, a dispersant thickening agent, a high resin content binder, and a low resin content binder. The compositions are combined in differing amounts to produce paint compositions being suitable for either interior or exterior use and having differing sheens, quality levels, and color bases.

Abstract: To provide a rubber composition having excellent wet grip performance while maintaining low heat build-up characteristics without lowering processability, abrasion resistance and rolling resistance. The rubber composition of the present invention comprises, based on 100 parts by weight of a diene rubber (A), 5 to 150 parts by weight of particular inorganic filler (B), 5 to 150 parts by weight of carbon black (C) having a nitrogen adsorption specific surface area of 70 to 300 m2/g, and 1 to 20 % by weight of a silane coupling agent (D). The pneumatic tire of the present invention is obtained by using the rubber composition for the tread rubber.

Abstract: A fuel cap 10 maintains high sealing even when subjected to external force; is easy to operate; and requires minimal space for accommodation. The cap device comprises a casing body 20 for closing the filler opening FNb in a sealed condition, a cover 40, a handle 45, a clutch mechanism 60 and a torque transmission mechanism 80. By upraising the handle to the handling position and applying rotational torque, rotational torque is transmitted to the casing body 20 via the clutch mechanism 60 and the torque transmission mechanism 80, closing the filler opening FNb. The handle 45 lowers back to the retracted position when released, whereupon the clutch mechanism 60 assumes non-transmission mode wherein the cover 40 and the handle 45 rotate freely if subjected to external force such as in a collision.

Abstract: There is provided a conductive curable resin composition comprising (A) a curable resin composition comprising an elastomer with a Mooney viscosity (ML1+4 (100° C.)) of 25 or greater at 2-80 wt % and (B) a carbon material, with a weight ratio of component (A) to component (B) of 70-5:30-95. The curable resin composition of component (A) preferably comprises (A1) an elastomer at 80-2 wt %, (A2) a radical reactive resin at 20-98 wt % and (A3) an organic peroxide at 0.2-10 parts by weight to 100 parts by weight of (A1+A2). Also provided are a process for production of a conductive cured resin by shaping and curing of the conductive curable resin composition, and a fuel cell separator, an assembly for a cell, an electrode or a heat releasing plate, obtained thereby.

Abstract: Provided are adhesive compositions comprising a mixture of a maleimide terminated polyimide resin, a thermoplastic resin compatible with the maleimide terminated polyimide resin, a thermally activated free radical curing agent, and electrically conductive particles and/or scrim. Various embodiments add a silane coupling agent and/or an ethylenically unsaturated compound with acid functionality. Methods of using the compositions also are provided.

Abstract: A composition includes a filler dispersed in a polymeric matrix. The filler may be electrically conducting in a temperature range and may have a Curie temperature. The composition may have a trip temperature at which electrical resistance of the composition increases with increase in temperature, and the trip temperature of the composition may be determined by the Curie temperature of the filler. The filler may be present in the polymeric matrix in an amount determined by a property of one or both of the polymeric matrix or the filler. An associated method is provided.

Abstract: The present invention is a process for the production of polyarylene sulfide based resin, wherein in washing a polyarylene sulfide based resin with a mixed solvent of an aprotic organic solvent and water in a softened or molten state, the polyarylene sulfide based resin partially dissolved in the washing liquid is recovered, to be specific, the polyarylene sulfide based resin dissolved in the washing liquid is precipitated, separated and recovered by cooling the washing liquid after washing and/or adding water to the washing liquid, and it is reused. According to the present invention, capable of being provided is a process for the production of polyarylene sulfide based resin in which the polyarylene sulfide based resin formed by polymerization is scarcely lost in washing the above resin with a solvent.

Abstract: The invention provides an organic-inorganic hybrid material comprising a support, and an organic-inorganic composite layer having a surface having protrusions and depressions a containing a crosslinked structure formed by hydrolysis and polycondensation of an alkoxide of an element selected from the group consisting of Si, Ti, Zr, and Al, the organic-inorganic composite layer being provided within a graft polymer layer comprising a graft polymer chain that is bonded directly to a surface of the support.

Abstract: The present invention provides a rubber composition for a cap tread that can improve steering stability on a snowy road and a pneumatic tire having a cap tread using the rubber composition. The rubber composition for a cap tread comprises 5 to 200 parts by weight of a carbon black having an iodine adsorption amount of 100 to 300 mg/g, and 2 to 50 parts by weight of a silicone oil based on 100 parts by weight of at least one diene rubber selected from the group consisting of a natural rubber, an isoprene rubber, a styrene-butadiene rubber and a butadiene rubber, and 1 to 20 parts by weight of a silane coupling agent based on 100 parts by weight of the silicone oil, and the pneumatic tire having a cap tread is prepared by using the rubber composition.

Abstract: A mixture of sinterable powders for rapid prototyping, comprising a powdered polymer base and material of a substantially glassy type in the form of microflakes, optionally with the addition of a material of a substantially glassy type in the form of microspheres, powdered aluminum and/or powdered graphite.

Abstract: This invention relates to a tire having a tread intended for winter performance comprised cis 1,4-polybutadiene rubber (BR) and specialized solution polymerization prepared high vinyl styrene/butadiene rubber (HVS-SBR). Such tire tread is comprised of a compatible rubber blend of at least 40 phr of the BR in combination the HVS-SBR together with reinforcing filler composed of precipitated silica with a low BET nitrogen surface area and, optionally, rubber reinforcing carbon black. A disulfide silane based silica coupler is used to aid in coupling the precipitated silica to the elastomers. Compatibility of the combination of the BR with a relatively low glass transition temperature (Tg) of ?100° C. or lower and the HVS-SBR with a relatively high Tg of at least 30° C. or higher, and therefore spaced apart Tg's of at least 70° C. is promoted by the high vinyl content of the HVS-SBR in a range of from about 40 to about 50 percent based upon its polybutadiene portion.

Abstract: The present invention relates to formed resinous articles derived from compositions comprising an ASA resin and a special visual effect additive.

Abstract: The invention is directed to a repair ink suitable for repairing a micro defect of a color pattern. The repair ink comprises a pigment, a monomer having a reactive functional group, an additive, and a solvent. The viscosity of the repair ink is about 40˜350 mPa·sec and the weight percentage of the solvent in the repair ink is about 20˜60 and the weight percentage of the pigment in the repair ink is about 5˜45.

Abstract: The present invention provides an intermediate transfer belt of a single layer made from a resin composition containing a crystalline thermoplastic resin and 5 parts by mass or more and 40 parts by mass or less of an conductive filler with respect to 100 parts by mass of the crystalline thermoplastic resin, wherein the surface hardness of the intermediate transfer belt is 0.25 GPa or higher and 0.60 GPa or lower when measured using a nanoindentation method; and an electrophotographic apparatus having the intermediate transfer belt.

Abstract: A tire tread incorporating an elastomeric composition reinforced by an inorganic filler, based on at least: (i) a diene elastomer; (ii) as reinforcing inorganic filler, more than 80 phr of a silica of low specific surface area having the following characteristics: (a) a BET specific surface area of less than 130 m2/g; (b) an average particle size, dw, of between 30 and 300 nm; (iii) a coupling agent providing the bond between the reinforcing inorganic filler and the diene elastomer; (iv) a vulcanization system comprising sulfur, a vulcanization accelerator and between 0.5 and 1.5 phr of zinc as vulcanization activator. Preferably, this silica furthermore has a disagglomeration rate ? greater than 5×103 ?m?1/min (measured in the ultrasound disagglomeration test).

Abstract: The invention relates to the selection of a natural calcium carbonate crushed to a high degree of fineness, possibly treated with one or more fatty acids or one or more of their salts or mixtures thereof, and its use as a rheology regulator for polymeric compositions. The specific surface area is 14 to 30 m2/g measured according to the BET method to ISO 4652, and the oil absorption is greater than 16 measured according to ISO 787-V (Rub-out method). The conditions of mixing of the constituents and manufacture are improved, as well as the properties of the final product.

Abstract: This invention relates to a polymer precursor dispersion for use in making a polymer that is a solid at room temperature and further relates to a method of making same where the dispersion comprises a polymer precursor comprising an addition monomer, a condensation monomer, a prepolymer, or a polymer modifier and 0.01 to 50 weight percent of a micropulp having a volume average length of from 0.01 to 100 micrometers.

Abstract: Disclosed is a process of forming a prepreg material having substantially no voids. According to the process of the invention, the reinforcing material is heated to a temperature above the temperature of the impregnating resin. The prepreg formed has substantially no voids and does not require lengthy consolidation when formed into useful articles.

Abstract: According to one aspect of the invention, a structure and method for providing improved thermal conductivity of a thermal interface material (TIM) made of phase changed polymer matrix and a fusible filler material is disclosed. The TIM may also have a non-fusible filler material and a percentage of a non-phase change polymer added to the phase change polymer matrix. The TIM, used to mate and conduct heat between two or more components, can be highly filled systems in a polymeric matrix where the fillers are thermally more conductive than the polymer matrix.

Abstract: This invention relates to a tire having at least one component of a silica reinforced rubber composition comprised of an emulsion polymerization derived terpolymer rubber which contain pendant hydroxyl groups, particularly derived from diene hydrocarbon and vinyl aromatic compound monomers, particularly a hydroxyalkyl methacrylate. Preferably the hydroxyalkyl methacrylate is a hydroxypropyl methacrylate (HPMA). Preferably at least one additional elastomer is blended with the terpolymer rubber. The rubber composition is prepared by blending a coupling agent therewith subsequent to the addition said silica reinforcement. Said tire component may be, for example, a tire tread.

Abstract: Coated abrasive articles comprise a composition comprising binder and at least about 25% by weight graphite particles, based on the total solids content of the composition.

Abstract: A composition suitable for an air barrier such as an automotive tire innertube, innerliner, and aircraft tire innertube or innerliner, curing bladders, and other pneumatic devices is disclosed. The composition comprises an elastomer, a processing oil, and a grafted resin component.

Abstract: The present invention refers to a mixing scheme containing a plurality of pigmented base paint compositions having defined colors and optionally one or more non-pigmented base paint compositions comprising at least one rheology controlled base paint composition containing at least one pigment selected from the group consisting of inorganic pigments, di-keto-pyrrolo-pyrrole type pigments, organic liquid crystal type pigments and carbon black and having the following rheology profile (1) an initial viscosity V1 at 20° C. of 65 Pa s or greater when measured at a shear rate of 10?3 s?1, (2) a viscosity V2 at 20° C. when measured at a shear rate of 10?3 s?1 immediately after subjecting to a shear rate of at least 15 s?1 whereby the viscosity V2 is 700 Pa s or less and is less than or equal to 70% of V1; (3) 24 hours after subjected by shaking to a shear rate of at least 15s?1 a viscosity V3 at 20° C.

Abstract: A pellicle made of a polymer material contains fullerenes within the polymer material to reduce the damaging effects of radiation that is transmitted through the pellicle during an exposure operation. The fullerenes may comprise nanotubes and/or buckyballs. The buckyballs may also enclose molecules of a gas that further reduce the damaging effects of the radiation on the polymer material.

Abstract: Provided is a process for producing a modified polymer, characterized by carrying out primary modification in which a hydrocarbyloxysilane compound is reacted with the active site of a polymer having an active site of an organic metal type in a molecule and then carrying out secondary modification in which the hydrocarbyloxysilane compound is further reacted therewith. This makes it possible to provide a modified polymer which enhances interactions with silica and carbon black when used for both of silica-blended and carbon black-blended rubber compositions and which elevates the fracture characteristic, the abrasion resistance and the low heat buildup property at the same time and can exhibit a good workability.

Abstract: A pellicle made of a polymer material contains fullerenes within the polymer material to reduce the damaging effects of radiation that is transmitted through the pellicle during an exposure operation. The fullerenes may comprise nanotubes and/or buckyballs. The buckyballs may also enclose molecules of a gas that further reduce the damaging effects of the radiation on the polymer material.

Abstract: A material for black-matrix banks includes a colorant, a solvent, an initiator, an oligomer, a polymer, and an additive. The total amount of the colorant in the material ranges from about 0.1% to about 40% by weight. The total amount of the solvent in the material ranges from about 1% to about 95% by weight. The total amount of the initiator in the material ranges from about 0.01% to about 15% by weight. The total amount of the oligomer in the material ranges from about 0.1% to about 30% by weight. The total amount of the polymer in the material ranges from above 0% to about 30% by weight. The total amount of the additive in the material ranges from above 0% to about 10% by weight.

Abstract: Disclosed are processes for preparing nanotube composite materials and fibers that provide exceptional nanotube alignment and dispersion. The disclosed processes include contacting nanotube dispersions with polymer melts. Also disclosed are nanotube composite fibers having high nanotube concentrations, exceptional nanotube alignment, and high thermal conductivity.

Abstract: A carbon nanotube composite material (10) includes a matrix material (12) having two opposite surfaces (102) and (104), a number of CNTs (14) each having two opposite end portions (112) and (114) embedded in the matrix material. The two opposite end portions of each CNT extend to and, potentially, out of the respective two opposite surfaces of the matrix material. A method for manufacturing the carbon nanotube composite material includes the steps of: providing a substrate and forming a carbon nanotube array in a selective pattern thereon; providing a pair of protective layers, a respective protective layer being attached on a corresponding portion of ends of CNTs; filling clearances existing among CNTs and between the two protective layers with a matrix material; and removing the protective layers from CNTs.

Abstract: A coating composition having outstanding electrically conductive and electromagnetic radiation absorptive properties is disclosed with a water emulsion polymer binder. The binder is a blend of a first emulsion containing a conjugated diene as monomer or comonomer, and a second emulsion containing an acrylic, aliphatic or aromatic polyurethane, polyester urethane, polyester, epoxy, polyamide, polyimide, vinyl, fluoropolymer, or silicone polymer. An effective amount of electrically conductive and electromagnetic radiation absorptive particles is dispersed in the binder. The particles include a combination of graphite particles, carbon nanotubes and metal containing particles. An effective amount of water is also present.

Abstract: The invention provides a process for preparing a filled halobutyl elastomer, which comprises mixing a halobutyl elastomer, particles of filler and an additive containing both amino and alcohol functional groups, and curing the filled elastomer with sulfur or other curative systems. This invention has the advantages of (a) not evolving alcohol either during the manufacture or subsequent use of the article manufactured from the compound, and (b) significantly reducing the cost of the compound.

Abstract: This invention relates to flame retardant nanocomposites and methods of reducing the flammability of polymeric compositions using nanotubes.

Abstract: The disclosure provides compositions prepared by combining nanomaterials with a halide-containing polymer, thereby forming a combined polymer matrix having dispersed nanomaterials within the matrix. The nanomaterials may be carbon-based nanotubes, in some applications. A halide-containing monomer is combined with nanotubes, and then polymerized in some compositions. In other applications, a halide-containing polymer is solution processed with nanotubes to form useful compositions in the invention. Also disclosed are probes for near field detection of radiation.

Abstract: There is provided a rubber composition for a tire tread having a remained despersibility of reinforcing agents without increased rubber hardness, an improved performance on snow and ice road, and an improved abrasion resistance, and inhibited from increasing in hardness or inhibited from increasing in hardness with the passage of time. A rubber composition for a tire tread, which comprises (a) a diene rubber, (b) glass fibers, (c) a reinforcing agent, and 1 to 15 parts by weight of (d-1) inorganic powders having a Mohs hardness of less than 6.5 and an average particle-size of less than 25 ?m and/or (d-2) silicone rubber powders based on 100 parts by weight of the diene rubber.