Carbon Particle Having Specified Dimension Patents (Class 524/496)
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Publication number: 20090048387Abstract: The present invention aims to provide a method of producing an ink composition for offset printing, which can improve the productivity of inks considerably, and in which the printing quality of printed substances obtained in using the foregoing ink composition for offset printing for sheet-fed printing is equal to or higher than that of printed substances obtained with the acid powder carbon black, while using the acid carbon black, particularly an acid bead carbon black. The present invention pertains to a method of producing an ink composition for offset printing, including the steps of wetting 100 parts by mass of an acid carbon black having a pH value of 2.0 to 6.0 with 25 to 400 parts by mass of a wetting agent containing at least water, using an oil-based varnish for a printing ink containing an alkyd resin having an acid value of 30 KOH mg/g or less to perform flushing of the wetted acid bead carbon black, and then removing the wetting agent.Type: ApplicationFiled: March 16, 2006Publication date: February 19, 2009Applicant: SAKATA INX CORP.Inventors: Takashi Araki, Hiroaki Funahashi, Yuichi Kataura
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Publication number: 20090047475Abstract: The present invention relates to compositions, which can be used for coating (e.g., painting) wiper blade rubbers to enhance durability, resistance to frictional forces, and/or other properties. In various embodiments, the coating compositions comprise nano-particle PTFE (TeflonĀ®), polyurethane, and silicone resin in a solvent and/or liquid carrier, such as distilled water. The coating compositions may further comprise graphite, a carbon lubricant, and/or a water-based resin. Methods for forming a coating on a wiper blade rubber using the compositions of the invention are also provided.Type: ApplicationFiled: February 29, 2008Publication date: February 19, 2009Inventor: Sun Mi Jeon
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Publication number: 20090048386Abstract: The invention relates to a simple and economic method for treatment of carbon nanotubes, in particular, for the modification of the surface thereof by functionalisation for improving the compatibility thereof with polar media, such as, certain polymers, resins or solvents. The invention further relates to nanotubes treated thus and the use thereof in the electronic, electro-mechanical and mechanical fields in which the above represent an advantageous replacement for untreated carbon nanotubes.Type: ApplicationFiled: February 10, 2006Publication date: February 19, 2009Applicant: Arkema FranceInventor: Dominique Plee
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Publication number: 20090039308Abstract: Modified polymers are prepared by providing a nanotube or nanoparticle suspension, adding a preformed polymer, swelling the preformed polymer in the suspension, and isolating the modified polymer from the suspension. The polymer may be a swellable polymer in the form of polymeric yarns, fibres, fabrics, ribbons or films. The swelling may be carried out using ultrasonic treatment.Type: ApplicationFiled: July 24, 2006Publication date: February 12, 2009Inventors: Iouri Kuzmich Gounko, Hugh Hayden, Jonathan Nesbit Coleman, Ian Edward O'Connor, Werner Josef Blau, Rowan Blake
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Publication number: 20090032160Abstract: The present invention can provide a rubber composition, in which all of strength at break, low heat-build up property, run-flat durability and low fuel consumption can be improved since the rubber composition comprises 5 to 120 parts by weight of flake-like graphite having an average aspect ratio of 3 to 80 and an average particle diameter of 2 to 80 ?m on the basis of 100 parts by weight of a diene rubber component, and a run-flat tire using the rubber composition.Type: ApplicationFiled: March 27, 2007Publication date: February 5, 2009Inventor: Kazuo Hochi
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Patent number: 7485678Abstract: 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.Type: GrantFiled: March 23, 2005Date of Patent: February 3, 2009Assignee: Honda Motor Co., Ltd.Inventors: Toshiyuki Ohashi, Keiichi Sato, Kazuhiro Miura
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Publication number: 20090030136Abstract: The present invention aims to provide a method of producing an ink composition for offset printing, which can improve the productivity of inks considerably while using a neutral carbon black and in which the printing quality of printed substances obtained by using the ink obtained by the method to perform sheet-fed printing is higher than that of printed substances using an acid carbon black, and an ink composition for offset printing prepared by the production method. The present invention pertains to a method of producing an ink composition for offset printing, including the steps of wetting 300 parts by mass of a neutral carbon black with 100 to 900 parts by mass of a wetting agent containing at least water, using an oil-based varnish for a printing ink containing an alkyd resin having an acid value of 30 KOH mg/g or less to perform flushing of the foregoing wetted neutral carbon black, and then removing the wetting agent.Type: ApplicationFiled: March 10, 2006Publication date: January 29, 2009Applicant: SAKATA INX CORP.Inventors: Takashi Araki, Hiroaki Funahashi, Yuichi Kataura
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Publication number: 20090030128Abstract: A composition of matter comprising a thermoplastic resin composition derived from (i) a polyester derived from a cycloaliphatic diol, and a cycloaliphatic diacid; (ii) a copolycarbonate derived from at least from 20 mole percent to 80 mole percent of an aromatic diol derived from structure III wherein R3 and R4 are independently selected from the group consisting of C1-C30 aliphatic, C2-C30 cycloaliphatic and C2-C30 aromatic groups, X is CH2 and m is an integer from 3 to 7, n is an integer from 1 to 4, p is an integer from 1 to 4, and from 20 mole percent to 80 mole percent of an aromatic dihydroxy compound; and wherein the resin composition is transparent is disclosed. Also disclosed is a process to prepare this composition and articles therefrom.Type: ApplicationFiled: July 25, 2007Publication date: January 29, 2009Inventors: Shreyas Chakravarti, Gabrie Hoogland, Jan-Pleun Lens, Songping Liao, Dake Shen, Huiping Zhang
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Publication number: 20090030129Abstract: A composition of matter comprising a thermoplastic resin composition derived from (i) a polyester derived from a cycloaliphatic diol, and an aromatic diacid; (ii) a polycarbonate derived from at least from 20 mole percent to 100 mole percent of an aromatic diol derived from structure II wherein R3 and R4 are independently selected from the group consisting of C1-C30 aliphatic, C2-C30 cycloaliphatic and C2-C30 aromatic groups, X is CH2 and m is an integer from 3 to 7, n is an integer from 1 to 4, p is an integer from 1 to 4, and from 0 mole percent to 80 mole percent of a second aromatic dihydroxy compound; and wherein the resin composition is transparent is disclosed. Also disclosed is a process to prepare this composition and articles therefrom.Type: ApplicationFiled: July 25, 2007Publication date: January 29, 2009Inventors: Shreyas Chakravarti, Songping Liao, Dake Shen, Huiping Zhang
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Patent number: 7482401Abstract: 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.Type: GrantFiled: October 13, 2005Date of Patent: January 27, 2009Assignee: The Yokohama Rubber Co., Ltd.Inventors: Tomoaki Sugiyama, Hiroshi Wakamatsu, Sadayuki Fujita
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Patent number: 7481952Abstract: The present invention is directed to a fluoropolymer tape having an electrically conductive surface. More specifically, the present invention is directed to a polytetrafluoroethylene (PTFE) tape and method for producing an electrically conductive tape by blending vapor-grown carbon fiber or carbon nanotubes or combinations of both with PTFE.Type: GrantFiled: April 29, 2005Date of Patent: January 27, 2009Assignee: Compagnie Plastic OmniumInventors: Jiaxiang Ren, Bernd Schulte-Ladbeck
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Publication number: 20090023852Abstract: The present invention provides a fluorine-containing elastomer composition which has small weight change for all the treatments of NF3 plasma, O2 plasma and CF4 plasma conducted in a manufacturing process of a semiconductor and significant plasma resistance, and a molded article comprising the fluorine-containing elastomer composition.Type: ApplicationFiled: January 31, 2005Publication date: January 22, 2009Inventors: Hiroyuki Tanaka, Kouji Fukuyama
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Publication number: 20090023853Abstract: Disclosed is a method for manufacturing fine carbon fibers' aggregates having a median diameter of not more than 30 ?m, which comprises a pulverization step where a composition which includes (a) fine carbon fibers' aggregates having a median diameter of not less than 30 ?m and (b) a dispersion medium undergoes acceleration in order to form a turbulent flow and/or collision flow, thereby shearing force and/or impacting force exert on the (a) component included in the composition and thus the (a) component is pulverized, wherein the value of [ID/IG of fine carbon fibers' aggregates after pulverization of the (a) component]/[ID/IG of fine carbon fibers' aggregates before pulverization of the (a) component] (wherein the ID/IG is calculated from measurement values determined by Raman spectroscopic analysis using 514 nm light of the argon laser) is in the range of 0.7 to 1.5.Type: ApplicationFiled: January 29, 2007Publication date: January 22, 2009Applicant: MITSUI & CO., LTD.Inventors: Takayuki Tsukada, Jiayi Shan
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Patent number: 7479517Abstract: 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.Type: GrantFiled: November 18, 2004Date of Patent: January 20, 2009Assignee: Futura Polyesters Ltd.Inventors: Sanjay T. Kulkarni, Mavila P. K. Unni
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Publication number: 20090018251Abstract: A polypropylene type aqueous dispersion comprising the following components (a) to (c): (a) a polypropylene type polymer 100 parts by weight and/or a modified polypropylene type polymer (b) a surfactant 1 to 100 parts by weight, and (c) water 100 to 1,000 parts by weight, wherein the component (a) has a main chain having the following features (1) and (2) and dispersion particles in the dispersion have an average particle size of at most 0.5 ?m, Feature (1) when observing a peak derived from a carbon atom of a methyl group in a propylene unit chain part comprising a head-to-tail bond by 13C-NMR and fixing a chemical shift of a peak top at a peak attributable to pentad expressed by mmmm to 21.8 ppm, a ratio (S1/S) of an area S1 of a peak of a peak top at 21.8 ppm to a total area S of peaks at from 19.8 ppm to 22.1 ppm is at least 10% and at most 60%, and when an area of a peak (mmmr) of a peak top at 21.5 to 21.Type: ApplicationFiled: August 4, 2008Publication date: January 15, 2009Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Teruaki ASHIHARA, Masato ONOE, Kazuyuki HATA, Fumihiko SHIMIZU, Naomasa SATO, Yukihito ZANKA, Kouichi NAKAYAMA
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Publication number: 20090011262Abstract: The present invention relates to a prepreg, a composite film, and a laminated material for circuit used for thermosetting composite resin compositions and printed circuit boards, and particularly to a thermosetting composite resin composition mixed with COP (Cyclo Olefin Polymer) and thermally cross-linkable resin, wherein the COP having excellent electrical characteristics at a high frequency and thermally cross-linkable resin are blended to allow having a less dielectric constant and a less dielectric loss than those of the conventional composite resin composition, and inorganic fillers such as ceramic material, metal material, carbon black are added to allow having dielectric characteristics covering from a low dielectric constant to a high dielectric constant.Type: ApplicationFiled: September 18, 2007Publication date: January 8, 2009Inventors: Myong Jae Yoo, Woo Sung Lee, Seong Dae Park, Se Hoon Park
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Publication number: 20090008016Abstract: There is provided a rubber composition for a sidewall, use of which makes it possible to consider an effect on environment, prepare for decrease in petroleum supply in future and further improve tear strength, flex crack growth resistance and weather resistance. The rubber composition comprises 15 to 120 parts by weight of a white filler and 5 to 50 parts by weight of graphite having an average particle diameter of 3 to 50 ?m on the basis of 100 parts by weight of a rubber component comprising a natural rubber in an amount of not less than 30% by weight.Type: ApplicationFiled: May 14, 2007Publication date: January 8, 2009Inventor: Kazuo Hochi
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Publication number: 20090004460Abstract: High quality thermoplastic composites and composite laminates containing nanoparticles and/or nanofibers, and methods of producing such composites and laminates are disclosed. The composites comprise a thermoplastic polymer and a plurality of nanoparticles, and may include a fibrous structural reinforcement. The composite laminates are formed from a plurality of nanoparticle-containing composite layers and may be fused to one another via an automated process.Type: ApplicationFiled: June 23, 2008Publication date: January 1, 2009Applicant: U.S.A. as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Mark B. Gruber, Mark A. Lamontia, Brian J. Jensen, Roberto J. Cano
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Publication number: 20090004453Abstract: According to the present invention, a fiber-reinforced thermoplastic resin molded article in which monofilamentous carbon fibers are contained in a thermoplastic resin in a high content, such fibers having long fiber lengths and being randomly arranged, is provided. Also, a molding material comprising monofilamentous carbon fibers and monofilamentous thermoplastic resin fibers, in which the carbon fibers are contained in a high content, such fibers having long fiber lengths and being randomly arranged, is provided. In addition, a method for producing a fiber-reinforced thermoplastic resin molded article, comprising molding the molding material by compression molding, is provided.Type: ApplicationFiled: February 19, 2007Publication date: January 1, 2009Inventors: Shoji Murai, Masato Honma
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Publication number: 20090005491Abstract: A method for performing a one-batch synthesis of a blend of nanoparticles and liquid polymer includes polymerizing a first monomer and optionally a second monomer in a hydrocarbon solvent to form the liquid polymer. The polymerization is terminated before completion with a quenching agent. Then a charge of polymerization initiator, and a mixture of multiple-vinyl aromatic monomer and mono-vinyl aromatic monomer are added. This causes further polymerization whereby nanoparticles are formed in situ having a core including the multiple-vinyl aromatic monomer, and a shell including the first monomer or the first monomer and the second monomer. Liquid polymer/nanoparticle blends resulting from the method and rubber compositions incorporating the blends are also disclosed.Type: ApplicationFiled: June 29, 2007Publication date: January 1, 2009Inventor: Sandra Warren
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Publication number: 20080306202Abstract: Exemplary embodiments provide intermediate transfer members that can be used in electrostatographic devices and methods for using them in forming an image. The disclosed intermediate transfer members can include a plurality of nanotubes with high electrical conductivity, high thermal conductivity, and/or low humidity sensitivity. The hydrophobicity of the nanotubes can be controlled by covalently grafting hydrophobic components onto one or more nanotubes; surface treating one or more nanotubes; and encapsulating one or more nanotubes with hydrophobic components. In an exemplary embodiment, the nanotubes can be dispersed in polymer matrices and/or formed on the surface of polymer matrices of the intermediate transfer members. The intermediate transfer members can take various forms of belts, sheets, webs, films, rolls, tubes or any shape that can provide a smooth surface and rotatable function.Type: ApplicationFiled: June 8, 2007Publication date: December 11, 2008Inventors: Liang-Bih Lin, Daniel Levy, Jin Wu
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Patent number: 7462656Abstract: 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.Type: GrantFiled: February 15, 2005Date of Patent: December 9, 2008Assignee: Sabic Innovative Plastics IP B.V.Inventors: Jan Peter Keulen, Christiaan Henricus Johannes Koevoets
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Publication number: 20080300357Abstract: A combination of MWNTs (herein, MWNTs have more than 2 walls) and DWNTs significantly improves the mechanical properties of polymer nanocomposites. A small amount of DWNTs reinforcement (<1 wt. %) significantly improves the flexural strength of epoxy matrix nanocomposites. A same or similar amount of MWNTs reinforcement significantly improves the flexural modulus (stiffness) of epoxy matrix nanocomposites. Both flexural strength and flexural modulus of the MWNTs and DWNTs-coreinforced epoxy nanocomposites are further improved compared with same amount of either DWNTs or MWNTs-reinforced epoxy nanocomposites. In this epoxy/DWNTs/MWNTs nanocomposite system, SWNTs may also work instead of DWNTs. Besides epoxy, other thermoset polymers may also work.Type: ApplicationFiled: March 29, 2007Publication date: December 4, 2008Applicant: NANO-PROPRIETARY, INC.Inventors: Dongsheng Mao, Zvi Yaniv
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Publication number: 20080287588Abstract: Provided are thermoplastic elastomer compositions composed of a thermoplastic component, an elastomeric component, and at least one particulate composition. Particulate compositions are composed of a particulate material and a carrier medium. Exemplary particulate materials include minerals, mineral compounds, including mineral oxides, clays, carbon, nanotubes, and combinations thereof. Typical carrier mediums are one or more polar polymers, apolar polymers, one or more oils, poly ?-olefins, or combinations thereof. The at least one particulate composition is dispersed within the thermoplastic component and/or the elastomeric component. Particulate compositions include clay grease compositions wherein a clay, e.g., an exfoliated clay, is utilized as a thickener.Type: ApplicationFiled: May 16, 2007Publication date: November 20, 2008Inventor: Danny Van Hoyweghen
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Publication number: 20080287591Abstract: A polymer-chain-grafted carbon nanocapsule. The polymer-chain-grafted carbon nanocapsule includes a carbon nanocapsule and at least one kind of polymer chain grafted thereon, forming a polymer-chain-grafted carbon nanocapsule in which the carbon nanocapsule is the core thereof. The polymer-chain-grafted carbon nanocapsules have the following formula: F(āP)m, in which F is the carbon nanocapsule, P is the polymer chain, and m is the number of the polymer chain. By grafting high-purity carbon nanocapsules with polymer chains, the application thereof is expanded.Type: ApplicationFiled: December 22, 2006Publication date: November 20, 2008Inventors: Gan-Lin Hwang, Abraham Joseph K
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Publication number: 20080280137Abstract: 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.Type: ApplicationFiled: February 15, 2007Publication date: November 13, 2008Applicant: THE UNIVERSITY OF AKRONInventors: Pulickel M. Ajayan, Ali Dhinojwala
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Publication number: 20080281014Abstract: A composition containing a nanosubstance is provided. Since the composition includes a nanosubstance (a), a (meth)acrylate compound (b) including a polar group, and a solvent (c)/polymerizable monomer (i-1), it is capable of being dispersed or solubilized in various solvents such as organic solvents, hydrous organic solvents and in polymerizable monomers without impairing characteristics of the nanosubstance itself wherein the nanosubstance neither separates out nor aggregates during a long-term storage, the composition being excellent in conductivity, film-forming property and moldability and capable of applying to or coating a substrate by a simple method. A coated film or cured film of a composite formed by the composition on at least one surface of the substrate shows high transparency, and the composite is excellent in water resistance, weatherability and hardness.Type: ApplicationFiled: September 9, 2005Publication date: November 13, 2008Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Fumino Momose, Masayuki Toyama, Haruko Takahashi, Shinichi Maeda, Takashi Saitoh, Jun Nakauchi
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Publication number: 20080275177Abstract: Methods for modifying carbon nanotubes with organic compounds are disclosed. The modified carbon nanotubes have enhanced compatibility with polyolefins. Nanocomposites of the organo-modified carbon nanotubes and polyolefins can be used to produce both fibers and films having enhanced mechanical and electrical properties, especially the elongation-to-break ratio and the toughness of the fibers and/or films.Type: ApplicationFiled: August 10, 2004Publication date: November 6, 2008Inventors: Benjamin Chu, Benjamin S. Hsiao
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Publication number: 20080271831Abstract: A carcass reinforcement for a tire which is intended to bear heavy loads, comprising a composite fabric which comprises a rubber composition of reduced hysteresis and metal cables reinforcing the composition. The elastomeric matrix thereof comprises natural rubber or a synthetic polyisoprene in a majority proportion, and a reinforcing filler comprising a carbon black which meets all of the following conditions: (i) 45?CTAB specific surface area in m2/g (in accordance with Standard ASTM D3765-80)?70, (ii) 45?BET specific surface area in m2/g (in accordance with Standard ASTM D4820-93)?70, (iii) 45?iodine adsorption index IA in mg/g (in accordance with Standard ASTM D1510-81)?70, (iv) ratio (BET surface area/index IA)?1.07, (v) 115?DBP structure value in ml/100 g (in accordance with Standard ASTM D2414-93)?170, (vi) 85 nm?Stokes diameter dst in nm?145, where dst is the diameter of aggregates corresponding to the maximum frequency of the Stokes diameters in a distribution of aggregates, and (vii) D50/dst?0.Type: ApplicationFiled: July 8, 2008Publication date: November 6, 2008Applicant: MICHELIN RECHERCHE ET TECHNIQUE S.A.Inventor: Brigitte CHAUVIN
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Patent number: 7442724Abstract: The invention relates to the use of copolymers with styrene-oxide-based, vinyl-functionalized polyethers for preparing aqueous pigment preparations.Type: GrantFiled: October 19, 2004Date of Patent: October 28, 2008Assignee: Goldschmidt GmbHInventors: Jutta Esselborn, Philippe Favresse, Kathrin Lehmann, Ute Linke, Angela RĆ¼ttgerodt, Stefan Silber
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Patent number: 7438970Abstract: 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.Type: GrantFiled: May 23, 2005Date of Patent: October 21, 2008Assignee: Nissin Kogyo Co., Ltd.Inventors: Akira Magario, Toru Noguchi
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Publication number: 20080255287Abstract: Compounds having the formulas below. Each R1 is an aromatic-containing group. Each R2 is methyl, phenyl, alkyl, perfluoroalkyl, and trifluoromethyl. M is an alkali metal, and n is a positive integer. A thermoset made by curing a mixture comprising a curing agent and the below phthalonitrile monomer. A method of: reacting a bis(fluorophenyl)phenylphosphine oxide with an excess of an aromatic diol in the presence of an alkali metal carbonate to form the oligomer below.Type: ApplicationFiled: September 7, 2007Publication date: October 16, 2008Applicant: The Government of the US, as represented by the Secrectary of the NavyInventors: Matthew Laskoski, Teddy M. Keller
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Publication number: 20080249229Abstract: A composite comprising at least one diamond/polymer brush and a method of making the composite comprising covalently bonding at least one polymer to said diamond surface.Type: ApplicationFiled: March 27, 2007Publication date: October 9, 2008Inventors: Charles M. Lukehart, Jimmy L. Davidson, Alvin M. Strauss, Lang Li, Blake Branson
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Publication number: 20080242773Abstract: There is provided a pigment dispersion comprising at least one resin-coated pigment comprising a resin and a pigment, and having an average particle diameter of 250 nm or less, and a dispersion medium containing as a major component a cation polymeric compound having a viscosity of 30 mPaĀ·s or less at a temperature of 25Ā° C. and a boiling point of 150Ā° C. or more at 1 atm. The pigment is incorporated in the pigment dispersion at a ratio ranging from 3 to 41% by weight based on a total weight of the dispersion medium, and the resin is incorporated in the resin-coated pigment at a ratio ranging from 5 to 37% by weight based on the weight of the pigment.Type: ApplicationFiled: May 27, 2008Publication date: October 2, 2008Inventors: Toru Ushirogouchi, Ryezo Akiyama, Kazuhiko Ohtsu, Masashi Hiroki, Mitsuru Ishibashi
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Publication number: 20080242793Abstract: Disclosed is a fiber-reinforced polyolefin resin composition containing (A) 1-20 mass % of carbon fibers having a fiber diameter of 3-20 ?m, (B) 3-50 mass % of black lead (graphite) having an average particle diameter of 1-100 ?m, and (C) 25-95 mass % of a polyolefin resin, wherein the mass ratio of the black lead (graphite) (B) (Wg) to the carbon fibers (A) (Wcf), namely mass ratio (Wg/Wcf), is 1-10. Also disclosed is a molded body of such a fiber-reinforced polyolefin resin composition.Type: ApplicationFiled: March 23, 2005Publication date: October 2, 2008Applicant: PRIME POLYMER CO., LTDInventor: Koki Yano
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Publication number: 20080216646Abstract: The piston seal member is formed of a crosslinked rubber composition, the rubber composition including 100 parts by weight of an ethylene-propylene rubber, 20 to 60 parts by weight of a first carbon black, 50 to 100 parts by weight of a second carbon black, and 5 to 20 parts by weight of carbon nanofiber having an average diameter of 0.5 to 500 nm, the total amount of the first carbon black and the second carbon black being 70 to 160 parts by weight. The first carbon black has an average particle diameter of 35 to 100 nm and a DBP absorption of 50 to 200 ml/100 g. The second carbon black has an average particle diameter that is greater than the average particle diameter of the first carbon black and ranges from 60 to 500 nm and a DBP absorption of 5 to 50 ml/100 g.Type: ApplicationFiled: February 21, 2008Publication date: September 11, 2008Applicants: NISSIN KOGYO CO., LTD., FUKOKU CO., LTD.Inventors: Toru Noguchi, Hiroyuki Ueki, Takumi Sagou, Takushi Matsushita, Tsuyoshi Watanabe
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Patent number: 7423084Abstract: 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.Type: GrantFiled: February 7, 2003Date of Patent: September 9, 2008Assignee: DSM IP Assets B.V.Inventors: Roelof Marissen, Martin Antonius Van Es
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Patent number: 7423085Abstract: 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.Type: GrantFiled: January 31, 2005Date of Patent: September 9, 2008Assignee: Nissan Kogyo Co., Ltd.Inventors: Toru Noguchi, Akira Magario
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Patent number: 7419720Abstract: 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.Type: GrantFiled: January 30, 2002Date of Patent: September 2, 2008Assignee: TICONA GmbHInventors: Achim Hofmann, Hans-Gerhard Fritz, Ralf Kaiser
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Publication number: 20080206465Abstract: An inkjet ink comprising water, a self-dispersing carbon black pigment, and a water soluble polymer containing acid groups neutralized by an inorganic base, wherein said carbon black pigment comprises greater than 11 weight % volatile surface functional groups. The inks of the present invention have improved print density on plain paper, good text quality, improved print durability such as waterfastness and excellent jetting performance over an extended printing period. They further provide good print uniformity over a wide variety of inkjet receivers.Type: ApplicationFiled: February 12, 2008Publication date: August 28, 2008Inventors: Gang C. Han-Adebekun, Gary L. House
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Patent number: 7414088Abstract: 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.Type: GrantFiled: September 3, 2004Date of Patent: August 19, 2008Assignee: The Board of Regents for Oklahoma State UniversityInventors: Warren Thomas Ford, Shuhui Qin
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Patent number: 7414087Abstract: 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.Type: GrantFiled: July 2, 2004Date of Patent: August 19, 2008Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Hiroyuki Kishimoto, Noriko Yagi, Kiyoshige Muraoka
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Publication number: 20080194736Abstract: The present invention relates to a process and a product of forming polymer (especially PVC) nanocomposites with a variety of nanofillers. The present invention provides a method for forming a polymer nanocomposite, comprising powder mixing a composition comprising polymer resin, a nanofiller, and a coupling agent for a residence time of about 4 to about 8 minutes to form a dry blend and extruding the dry blend in an extrusion process. Additionally, the present invention relates to a polymer nanocomposite formed by a process, comprising powder mixing a polymer resin, a nanofiller, and a coupling agent for a residence time of about 4 to about 8 minutes to form a dry blend and extruding the dry blend in an extrusion process to achieve homogeneous dispersion of nanofillers in the polymer matrix.Type: ApplicationFiled: February 13, 2007Publication date: August 14, 2008Inventor: Minqiu Lu
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Patent number: 7402616Abstract: 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.Type: GrantFiled: September 30, 2004Date of Patent: July 22, 2008Assignee: Lifescan, Inc.Inventors: James Iain Rodgers, Margaret Maclennan, James Moffat, Alan McNeilage
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Patent number: 7399794Abstract: 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).Type: GrantFiled: April 28, 2005Date of Patent: July 15, 2008Assignee: University of South FloridaInventors: Julie P. Harmon, LaNetra M. Clayton
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Publication number: 20080167417Abstract: 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.Type: ApplicationFiled: April 20, 2007Publication date: July 10, 2008Applicant: NISSIN KOGYO CO., LTD.Inventors: Toru Noguchi, Akira Magario, Morinobu Endo
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Electrically conductive resin compounds based on polyoxymethylene and highly structured carbon black
Patent number: 7396492Abstract: This invention in one aspect is a polyoxymethylene compound exhibiting an improved balance of properties and volume resistivity of 100-106 ohm-cm, which comprises polyoxymethylene, polyethylene glycol, metal oxide, high-structure carbon black and a comb polymer. The invention is more particularly directed to a polyoxymethylene compounds and molded articles therefrom in which the compound comprises 30 to 98.7% by weight of a polyoxymethylene homopolymer or copolymer, from 0.1 to 10% by weight of a polyalkylene glycol, from 0.1 to 10% by weight of metal oxide, from 1% to 15% of a high structured particulate carbon black, and from 0.1 to 15% by weight of a comb polymer containing a relatively less polar backbone with relatively more polar side chains.Type: GrantFiled: March 30, 2006Date of Patent: July 8, 2008Inventors: Kenneth Leon Price, Jeroen Franklin Visjager, Stefan Kutta -
Patent number: 7396521Abstract: A heat transfer fluid with hetero-nanocapsules. The heat transfer fluid comprises a fluid and a plurality of hetero-nanocapsules, uniformly dispersed in the fluid, in an amount of 0.01 to 10 parts by weight, based on 100 parts by weight of the heat transfer fluid. Since the hetero-nanocapsules are apt to disperse in fluid and have superior thermal conductivity, the heat conduction capability of the heat transfer fluid therewith is enhanced.Type: GrantFiled: July 5, 2006Date of Patent: July 8, 2008Assignee: Industrial Technology Research InstituteInventor: Gan-Lin Hwang
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Publication number: 20080161476Abstract: 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.Type: ApplicationFiled: December 27, 2007Publication date: July 3, 2008Applicant: FUJIFILM CORPORATIONInventor: Atsushi SUGASAKI
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Patent number: 7393475Abstract: An electrically conductive composite comprising a polyvinylidene fluoride polymer or copolymer and carbon nanotubes is provided. Preferably, carbon nanotubes may be present in the range of about 0.5-20% by weight of the composite. The composites are prepared by dissolving the polymer in a first solvent to form a polymer solution and then adding the carbon nanotubes into the solution. The solution is mixed using an energy source such as a sonicator or a Waring blender. A precipitating component is added to precipitate out a composite comprising the polymer and the nanotubes. The composite is isolated by filtering the solution and drying the composite.Type: GrantFiled: January 18, 2006Date of Patent: July 1, 2008Assignee: Hyperion Catalysis International, Inc.Inventors: Chunming Niu, Lein Ngaw, Alan B. Fischer, Robert Hoch