Abstract: A seal element (70) for providing a static or dynamic seal between two components (74, 78) in a downhole tool includes a polymer host material (212) and a plurality of nanostructures (220) forming a nanocomposite material (210). The polymer host material (212) has a plurality of regions of free volume (222) that receive the nanostructures (220). The nanostructures (220) and the polymer host material (212) form interfacial interactions that improve the useful life of the seal element (70) by minimizing seal failures associated with explosive decompression, extrusion, spiral failure, abrasion, temperature degradation and the like.

Abstract: The present invention relates to a friction material having a fibrous base material as a primary layer and a secondary layer comprising a mixture of carbonaceous material and friction modifying particles on at least one surface of the primary layer for use as an anti-shudder friction material.

Abstract: Disclosed is a conductive resin composition containing a polyamide, a polyphenylene ether, a polyester and a conductive carbon filler. The resin composition has attained excellent conductivity by being added with a small amount of the conductive carbon filler, while being excellent in fluidity and surface luster. Also disclosed is a molded body formed from such a resin composition.

Abstract: Exemplary embodiments provide coating compositions having pseudo-fluorine surface and methods for processing and using the coating compositions. The coating composition can include, for example, a plurality of fluorine-containing resin fillers and a plurality of nanotubes (e.g., carbon nanotubes (CNTs)) dispersed in a polymer matrix that contains, e.g., one or more cross-linked polymers. The fluorine-containing resin fillers can provide a pseudo-fluorine surface for a low surface energy of the coating composition. The nanotubes can be dispersed in the polymer matrix to provide an improved mechanical robustness of the coating composition. The coating composition can be coated on a member surface, wherein the coated member can be, for example, a fuser member, a fixing member, a pressure roller, or a release agent donor member, used in an electrostatographic printing device or process.

Abstract: To provide a propylene resin composition excellent in both the electroconductivity and moldability and excellent in their balance, and a molded product thereof. A propylene resin composition comprising from 50 to 98 wt % of a propylene resin having a MFR of from 5 to 300 g/10 min, and from 2 to 50 wt % of carbon black having a 24M4DBP absorption of at least 130 cm3/100 g, a dehydrogenation amount of at most 1.2 mg/g at 1,500° C. for 30 minutes and a crystallite size (Lc) of from 10 to 17 ?. A propylene resin molded product which is a propylene resin molded product obtained by molding such a propylene resin composition and which has a volume resistivity of from 102 to 109 ?·cm and a MFR of from 1 to 80 g/10 min.

Abstract: The invention is directed to carbon nanostructure composite systems which may be useful for various applications, including as dry adhesives, electronics and display technologies, or in a wide variety of other areas where organized nanostructures may be formed and integrated into a flexible substrate. The present invention provides systems and methods wherein organized nanotube structures or other nanostructures are embedded within polymers or other flexible materials to provide a flexible skin-like material, with the properties and characteristics of the nanotubes or other nanostructures exploited for use in various applications. In one aspect, the invention is directed to a carbon nanotube/polymer composite material having a plurality of carbon nanotubes formed into a predetermined architecture, with each of the plurality of nanotubes having a desired width and length.

Abstract: The present invention relates to a (process for preparation of a) carbon nanotubes reinforced polymer, wherein the matrix polymer has both a low molecular weight fraction as well as a high molecular weight fraction, as a result of which the level of conductivity of the resulting composite can be controlled.

Abstract: The present invention provides a composition for forming a top anti-reflection coating and also provides a pattern formation method employing that composition. The composition prevents pattern failures caused by light reflected in the resist layer in the exposure step, and it further avoids troubles caused by residues produced in the etching step. The composition contains a solvent and fine particles having a mean particle size of 1 to 100 nm. In the pattern formation method of the present invention, a top anti-reflection coating is formed from the composition. The composition and the method according to the present invention can be used to form a composite film composed of a resist layer and a top anti-reflection coating.

Abstract: A method of preparing a silicone resin film, the method comprising coating a release liner with a nanomaterial-filled silicone composition comprising a condensation-curable silicone composition and a carbon nanomaterial, and curing the silicone resin of the coated release liner; a silicone resin film prepared according to the preceding method, and a nanomaterial-filled silicone composition.

Abstract: Exemplary embodiments provide nanotube-containing coating compositions and methods for making and using the coating compositions. In an exemplary embodiment, the coating composition can include a plurality of nanotubes (e.g., carbon nanotubes (CNTs)) dispersed stably and uniformly in a polymer matrix containing fluoropolymers. The coating composition can further include stabilizers to allow a stable and/or uniform dispersion of the plurality of nanotubes in the fluoropolymers. The nanotube coating composition can be coated on an article surface to improve mechanical robustness, and electrical and thermal conductivity of the coated article. The coated article can be used as, for example, a fuser member, a fixing member, a pressure roller, or a release agent donor member in an electrostatographic printing machine or process.

Abstract: The invention relates to a tire having a tread which contains coal dust to promote a fast wearing tread running surface designed to expel internally heated tread rubber.

Abstract: Disclosed herein is a material for altering electromagnetic radiation incident on the material. The material disclosed herein comprises carbon nanotubes having a length (L) that meets the following formula (1): L?½ ???(1) where ? is the wavelength of the electromagnetic radiation incident on the material. Also disclosed herein are methods of altering electromagnetic radiation, including mitigating, intensifying, or absorbing and re-transmitting electromagnetic radiation using the disclosed material.

Abstract: Composite materials having high cohesive strength, formed from at least one polymer and from at least one compound selected from among mineral oxides, aluminosilicates and active carbon, are characterized by a mean particle size of at least 100 mm, a pore volume (Vd1) formed by pores having a diameter ranging from 3.6 to 1,000 nm, equal to at least 0.2 cm3/g, a cohesive strength such that its content of particles having a size of less than 100 mm, obtained after being subjected to an air pressure of 2 bar, of less than 1.5%, preferably 0.0%, by volume; such composite materials are formed into useful liquid supports, catalyst supports, additives, or liquid or gas filters, in particular into cigarette filters.

Abstract: Dispersions of carbon nanotubes exhibiting long term stability are based on a polymer matrix having moieties therein which are capable of a donor-acceptor complexation with carbon nanotubes. The carbon nanotubes are introduced into the polymer matrix and separated therein by standard means. Nanocomposites produced from these dispersions are useful in the fabrication of structures, e.g., lightweight aerospace structures.

Abstract: Disclosed is a method for production of polyphenylene by means of polymerization of phenols. The method comprises using hydroquinone as a phenol, which is predissolved in water or in alcoholic solution, adding hydrogen peroxide in the presence of transition metals aquo-ions, and controlling temperature during polymerization keeping it not higher than the boiling point, and controlling pH in the range of 2-7. In on example embodiment, Cr, Mn, Fe, Cu, Ni, Co, Zn aquo-ions or a combination thereof may be used as transition metal aquo-ions.

Abstract: The present invention relates to a method for preparing carbon fibrils and/or nanotubes from a carbon source integrated in the catalyst used for their preparation and a source of hydrocarbonated gas, as well as to the catalyst material and to the corresponding method. The catalyst material for preparing mono- or multi-leaved carbon fibrils and/or nanotubes includes one or more given multivalent transition metals and a hydrocarbonated solid organic substrate.

Abstract: The present invention relates to a heat-meltable fluoropolymer composite composition having excellent thermal conductivity, gas and chemical liquid barrier properties and dynamic properties such as storage modulus which comprises a heat-meltable fluoropolymer fine powder and a layered-compound organized by treatment with tetraphenyl phosphonium ions. The present invention also relates to a heat-meltable fluoropolymer composite composition having similar properties to those mentioned above which is obtained by a process (I) in which a heat-meltable fluoropolymer composite composition is obtained by grinding and mixing a heat-meltable fluoropolymer fine powder and a layered-compound and a process (II) in which such heat-meltable fluoropolymer composite composition thus obtained is melted and mixed under shear stress by means of a melt-mixing extruder.

Abstract: The present disclosure generally relates to resin compositions having a reduced coefficient of thermal expansion achieved by addition of non-spherical, rounded graphite filler. This disclosure further relates to articles made from such resin compositions, also having a reduced coefficient of thermal expansion, and a method for making such articles.

Abstract: An oligomer having the formula: Ar1 and Ar2 are each an aromatic group or a bisphenol residue. At least one of Ar1 and Ar2 is the aromatic group. The value of m is zero or one, and n is a positive integer. A polymer made by reacting the above oligomer with a crosslinker having at least two silyl hydrogen atoms. A method of: reacting a compound having the formula: with vinyl(dimethylchloro)silane to form the above oligomer. T is —OH, —Br, or —I.

Abstract: This invention relates to a thermoplastic polymer composition that exhibits an excellent combination of properties for use in manufacturing shipping combs for use in conjunction with moving actuators for hard disk drives. The thermoplastic polymer composition of this invention is comprised of (1) from 10 weight percent to 90 weight percent polycarbonate, (2) from 1 weight percent to 6 weight percent carbon nanotubes, (3) from 5 weight percent to 85 weight percent of a sulfone polymer, (4) from 0.5 weight percent to 10 weight percent of a functionalized rubbery polymer, and (5) from 0.5 weight percent to 5 weight percent of a lubricant selected from the group consisting of high density polyethylene and polyester wax, wherein all weight percentages are based upon the total weight of the thermoplastic polymer composition.

Abstract: Provided are a heat-dissipating black resin composition having excellent physical properties such as heat-dissipation, workability, corrosion resistance, solvent resistance, coating adherence and gloss, and being free from chromium and used for surface treatment of a zinc coated steel sheet, a method for treating a zinc coated steel sheet, and a zinc coated steel sheet treated thereby. The composition includes, based on 100 parts by weight: 10 to 60 parts by weight of a resin composition which at least one main resin and a melamine-based curing agent are mixed in a weight ratio of 10:2-7, the main resin being selected from the group consisting of polyester, epoxy, polyolefin, polyurethane, fluorine, phenol, acryl and polycarbonate resins; 1 to 10 parts by weight of at least one pigment selected from the group consisting of carbon black and carbon nano tube; 1 to 10 parts by weight of a matting agent; and the balance of a solvent.

Abstract: This invention relates to a thermoplastic polymer composition that exhibits excellent characteristics for being thermoformed into a wide variety of packaging trays for electronics, including the disk drive and semiconductor industries. More specifically, these trays are applicable as packaging material for head suspension assembly and offer conductivities in the range of antistatic to electrostatic dissipation (ESD). For instance, the thermoplastic polymer composition of this invention offers improved stiffness, improved chemical resistance, the capable of enduring more washing cycles, the capability of being dried at higher temperatures, improved cleanliness, and better electrical conductivity that conventional PETG/IDP polymer blends.

Abstract: The present invention relates to a resin composition for GHz-band electronic components, the composition comprising nanoscale carbon tubes and at least one member selected from the group consisting of thermoplastic resins, curable resins, and composite resins of thermoplastic resins and curable resins; wherein the nanoscale carbon tubes are present in an amount of 0.0001 to 0.4 wt. % based on the resin; and an electronic component obtainable from the resin composition, or the like.

Abstract: A rubber composition for a tire tread including 100 parts by weight of a diene-based rubber and 5 to 150 parts by weight of carbon black having a nitrogen adsorption specific area N2SA (m2/g) of 80 to 150 and satisfying a relationship between a TINT (%) and dibutyl phthalate absorption DBPA (ml/100 g) of TINT (%)>1.4 DBPA (ml/100 g) and capable of increasing the frictional force without impairing the hysteresis loss.

Abstract: A method of producing carbon nanofibers includes grinding untreated carbon nanofibers produced by a vapor growth method. The untreated carbon nanofibers are ground so that the ground carbon nanofibers have a tap density 1.5 to 10 times higher than that of the untreated carbon nanofibers. A method of producing a carbon fiber composite material includes mixing carbon nanofibers into an elastomer, and uniformly dispersing the carbon nanofibers in the elastomer by applying a shear force to obtain a carbon fiber composite material.

Abstract: Creep resistant fluoropolymer is made by blending a melt-fabricable fluoropolymer having a melt flow rate of no greater than about 7 g/10 min with milled carbon fiber and forming the resultant blend into an article, the carbon fiber content of the blend being from about 15 to 35 wt % based on the combined weight of the carbon fiber and the fluoropolymer.

Abstract: This invention relates to high performance tires designed for high vehicular speeds having thin treads with a maximum thickness of about three centimeters with a running surface which is comprised of a rubber composition which is highly loaded with a combination of reinforcing filler and rubber processing oil. The combination of reinforcing filler is comprised of conductive carbon black and optionally at least one of classical rubber reinforcing carbon black and precipitated silica and their mixtures. This high level of a combination of selective reinforcing filler together with rubber processing oil in the tread rubber is provided to promote a reduction in internal heat generation within the thin tread during high vehicular speeds, particularly for vehicles intended to be used as race cars.

Abstract: This invention is based upon the discovered that crosslinked core-shell particles can be used as a filler in low cost emulsion styrene-butadiene rubber (ESBR) with excellent results being attained. In fact, such core-shell particle filled ESBR exhibits performance similar to silica filled solution styrene-butadiene rubber (SSBR) in terms of dynamic response, Payne effect, rebound and tan ? at 0° C. and 100° C. The utilization of such crosslinked core-shell particles in rubber compounds offers the additional advantage of weight reduction since the core-shell particles are significantly less dense than carbon black or silica fillers. The use of the crosslinked core-shell polymers of this invention in rubber formulations in place of silica also offers the advantage of not needing any expensive silane coupling agents to attain required levels of polymer/filler interaction. Accordingly, no silane coupling agent is used in the rubber compounds of this invention which leads to reduced cost.

Abstract: Flame retardant compositions are disclosed which comprise (a) at least one particulate material which expands on the application of heat and (b) at least one particulate nano-filler, together with at least one polymer and/or at least one curable monomer or oligomer. The compositions may also contain certain silicon-based materials. Flame-retardant compositions comprising polyorganosiloxanes containing one or more functional groups selected form amino, hydroxyl, methacrylic, acrylic and epoxy groups, are also disclosed.

Abstract: A fiber composite material, including: an elastomer; carbon nanofibers having an average diameter of 0.7 to 15 nm and an average length of 0.5 to 100 micrometers; and fibers having an average diameter of 1 to 100 micrometers and an aspect ratio of 50 to 500, the carbon nanofibers and the fibers being dispersed in the elastomer, and the elastomer including an unsaturated bond or a group exhibiting affinity to the carbon nanofibers.

Abstract: Disclosed herein is a composition having: a polymer having a carbosilane or siloxane backbone and pendant hydrogen-bond acidic groups; and a filler material having polar groups. The polymer is not covalently bound to the filler material.

Abstract: Thermoset polymer particles are used in many applications requiring lightweight particles possessing high stiffness, strength, temperature resistance, and/or resistance to aggressive environments. The present invention relates to the use of two different methods, either each by itself or in combination, to enhance the stiffness, strength, maximum possible use temperature, and environmental resistance of such particles. One method is the application of post-polymerization process steps (and especially heat treatment) to advance the curing reaction and to thus obtain a more densely crosslinked polymer network. In general, its main benefits are the enhancement of the maximum possible use temperature and the environmental resistance. The other method is the incorporation of nanofillers, resulting in a heterogeneous “nanocomposite” morphology. In general, its main benefits are increased stiffness and strength.

Abstract: A surface coating, colorant, pigment or polymer composite preparation that provides resistance to degradation when exposed to at least some portion of ultraviolet radiation having wavelengths between approximately 190 and 400 nm is made up of a dispersion of an effective amount of diamond nanoparticles in a binding matrix, wherein at least a portion of the diamond nanoparticles have a size greater than about 60 nm so that the diamond particles provide ultraviolet radiation degradation resistance properties in the dispersion. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: A fiber composite material, including: an elastomer; carbon nanofibers having an average diameter of 0.7 to 15 nm and an average length of 0.5 to 100 micrometers; and fibers having an average diameter of 1 to 100 micrometers and an aspect ratio of 50 to 500, the carbon nanofibers and the fibers being dispersed in the elastomer, and the elastomer including an unsaturated bond or a group exhibiting affinity to the carbon nanofibers.

Abstract: Polymer composition (C) comprising: at least one poly(aryl ether ketone) (P1), at least one poly(biphenyl ether sulfone) (P2), and at least one fibrous carbon nanofiller (N). Article or part of an article comprising the polymer composition (C).

Abstract: Expandable vinylaromatic polymers which comprise: a) a matrix obtained by polymerizing 50-100% by weight of one or more vinylaromatic monomers and 0-50% by weight of a copolymerizable monomer; b) 1-10% by weight, calculated with respect to the polymer (a) of an expanding agent englobed in the polymeric matrix; c) 0.01-20% by weight, calculated with respect to the polymer (a) of carbon black distributed in the polymeric matrix having an average diameter ranging from 30 to 2000 nm, a surface area ranging from 5 to 40 m2/g, a sulfur content ranging from 0.1 to 2000 ppm and an ash content ranging from 0.001 to 1%.

Abstract: The present invention provides a resin composition and a resin molded article capable of designing to make specific properties, in particular, fuel barrier properties, consistent with impact resistance. The resin composition includes a mixture of a thermoplastic resin with fibers having lengths of from 4 to 20 mm. The fibers have melting points higher than a melting point of the thermoplastic resin or are infusible.

Abstract: There is provided an inkjet recording ink and recording media set, which contains: an inkjet recording ink; and a recording medium, wherein the inkjet recording ink comprises at least: water; a water-soluble organic solvent; and a colorant containing carbon black, and having a volume average particle diameter of 40 nm to 100 nm, wherein the recording medium contains: a substrate; and a coating layer on at least one side of the substrate, and wherein an amount of pure water transferred to the recording medium, as measured with a dynamic scanning absorptometer at 23 C and 50% RH, at a contact time of 100 ms is 2 ml/m2 to 35 ml/m2 while an amount of pure water transferred to the recording medium at a contact time of 400 ms is 3 ml/m2 to 40 ml/m2.

Abstract: A heat-resistant seal material includes 100 parts by weight of a ternary fluoroelastomer, 1 to 30 parts by weight of vapor-grown carbon fibers having an average diameter of more than 30 nm and 200 nm or less, and carbon black having an average particle diameter of 25 to 500 nm. The heat-resistant seal material contains the vapor-grown carbon fibers and the carbon black in an amount of 20 to 40 parts by weight in total. The heat-resistant seal material has a compression set when subjected to a compression set test at a compression rate of 25% and a temperature of 200° C. for 70 hours of 0 to 15% and a dynamic modulus of elasticity at 200° C. (E?/200° C.) of 30 to 100 MPa.

Abstract: An object of the present invention is to provide a resin composition in which a surface resistivity and a volume resistivity actually measured in an antistatic region and an electrostatic diffusion region are equivalent to each other, and a remolded product produced by reutilizing a molded product which can hold the above properties. Specifically, disclosed is a resin composition comprising: 100 parts by weight of (a) a thermoplastic resin; 20 to 80 parts by weight of (b) a nonconductive fibrous inorganic filler having an average fiber diameter of not more than 15 ?m; and 10 to 70 parts by weight of the total of (c1) a graphite and (c2) a graphite in which (c) graphite having an average particle diameter of 1 ?m to 50 ?m wherein each kind thereof has a different particle diameter; and at least one of differences in average particle diameter between two kinds thereof is not less than 5 ?m.

Abstract: Addition curable elastomer compositions whose cured products exhibit high elongation at break and high tear propagation resistance are prepared from specific molecular weight ranges of alkenyl-terminal, alkenyl-pendant, and substantially non-functional organopolysiloxanes.

Abstract: Electrically conductive polymer composite materials comprised of: a) an effective amount of substantially crystalline graphitic carbon nanofibers comprised of graphite sheets that are substantially parallel to the longitudinal axis of the nanofiber, preferably wherein said graphite sheets form a multifaceted tubular structure; and b) a polymeric component.

Abstract: There are provided an ink set including an ink composition having excellent color developability, ejection stability, and fixity and a pigment fixer having excellent abrasion resistance and dry-cleaning resistance; a method for producing an ink jet recorded matter with the ink set, the ink jet recorded matter having excellent color developability, ejection stability, abrasion resistance, and dry-cleaning resistance; and an ink jet recorded matter obtained by the method. An ink set includes an ink composition containing a water-dispersible pigment dispersoid and a reaction agent, and a pigment fixer containing polymeric microparticles having a glass transition temperature of ?10° C. or lower, an acid value of 100 mg KOH/g or less, and prepared using at least alkyl (meth)acrylate and/or cyclic alkyl (meth)acrylate.

Abstract: There are provided a liquid composition for making pigment fixed having a high resistance to rubbing and a good dry-cleanability; an ink set including the liquid composition for making pigment fixed and an ink composition excellent in terms of color intensity, discharge stability, and adhesiveness; and a method for producing ink-jet-recorded matter on a fabric having a high resistance to rubbing and good dry-cleanability using the liquid composition for making pigment fixed and the ink composition. The liquid composition for making pigment fixed according to the present invention contains at least polymer fine particles synthesized using an alkyl (meth)acrylate and/or cyclic alkyl (meth)acrylate and a reactive compound having an ethylene-based unsaturated compound and a reactive group, the glass transition temperature and the acid value of the liquid composition being equal to or lower than ?10° C. and equal to or lower than 100 mg KOH/g, respectively.

Abstract: The present invention is directed to the effective dispersion of carbon nanotubes (CNTs) into polymer matrices. The nanocomposites are prepared using polymer matrices and exhibit a unique combination of properties, most notably, high retention of optical transparency in the visible range (i.e., 400–800 nm), electrical conductivity, and high thermal stability. By appropriate selection of the matrix resin, additional properties such as vacuum ultraviolet radiation resistance, atomic oxygen resistance, high glass transition (Tg) temperatures, and excellent toughness can be attained. The resulting nanocomposites can be used to fabricate or formulate a variety of articles such as coatings on a variety of substrates, films, foams, fibers, threads, adhesives and fiber coated prepreg. The properties of the nanocomposites can be adjusted by selection of the polymer matrix and CNT to fabricate articles that possess high optical transparency and antistatic behavior.

Abstract: A method for reducing cure shrinkage of a thermoset resin includes forming a plurality of surface modified nanofibers. The surface modified nanofibers are formed by soaking nanofibers in an oxidizing acidic solvent. An oxidizing agent is added to the soaking nanofibers, thereby generating heat sufficient for at least one of in-situ oxidation and in-situ exfoliation of a subsurface of each of the nanofibers. Excess oxidizing agent and acidic solvent are removed from the nanofibers, which are then dried. The dried nanofibers have reduced surface hydrophobicity. The surface modified nanofibers are substantially uniformly dispersed into the thermoset resin. The surface modified nanofibers are adapted to reduce cure shrinkage of the thermoset resin during subsequent curing processes.

Abstract: The invention relates to an adhesive composition containing a special silane cross-linking polymer and fine-particle coated calcium carbonate and soot. 20 to 50 ml of fine-particle coated calcium carbonate and soot are provided for every 100 g of polymer, and the volume ratio of fine-particle coated calcium carbonate and soot is between 70:30 and 30:70. The inventive adhesive composition is characterized by having good mechanical properties, a high electrical volume resistance and a good applicability.

Abstract: The subject of the present invention is the use of cohesive, low-hysteresis compositions comprising small amounts of reinforcing fillers to produce profiled filing members arranged in the bottom zone of tires in order to improve the life thereof.

Abstract: In order to provide an ink composition which is excellent in color development, stability and fixability and, more particularly, an ink for ink jet recording which is excellent in color development, stability and fixability, is excellent as a textile ink for ink jet recording, and is excellent in ejection stability of the ink from an ink jet head, an ink composition includes a dispersion element having an average particle diameter of 50 nm to 300 nm, which allows a pigment to be dispersed in water; polymer fine particles synthesized using at least alkyl(meth)acrylate and/or cyclic alkyl(meth)acrylate as components thereof, having a glass transition temperature of ?10° C. or below and having an acid value of 100 mgKOH/g or less; and a reactant.

Abstract: There are provided an ink set including an ink composition having excellent color developability, ejection stability, and fixity and a pigment fixer having excellent abrasion resistance and dry-cleaning resistance; a method for producing an ink jet recorded matter with the ink set, the ink jet recorded matter having excellent color developability, ejection stability, abrasion resistance, and dry-cleaning resistance; and an ink jet recorded matter obtained by the method. An ink set includes an ink composition containing a water-dispersible pigment dispersoid and polymeric microparticles having a glass transition temperature of ?10° C. or lower, an acid value of 100 mg KOH/g or less, and prepared using at least alkyl (meth)acrylate and/or cyclic alkyl (meth)acrylate, and a pigment fixer containing a reaction agent.