With Organic Component Patents (Class 252/510)
-
Patent number: 8048339Abstract: Provided are a porous anode active material, a method of preparing the same, and an anode and a lithium battery employing the same. The porous anode active material includes fine particles of metallic substance capable of forming a lithium alloy; a crystalline carboneous substance; and a porous carboneous material coating and attaching to the fine particles of metallic substance and the crystalline carboneous substance, the porous anode active material having pores exhibiting a bimodal size distribution with two pore diameter peaks as measured by a Barrett-Joyner-Halenda (BJH) pore size distribution from a nitrogen adsorption. The porous anode active material has the pores having a bimodal size distribution, and thus may efficiently remove a stress occurring due to a difference of expansion between a carboneous material and a metallic active material during charging and discharging.Type: GrantFiled: July 27, 2007Date of Patent: November 1, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Sang-kook Mah, Han-su Kim, Dong-min Im
-
Patent number: 8043534Abstract: The invention is based on the discovery that compositions containing certain maleimide compounds and aromatic diene compounds are useful as thermosetting resins for the electronic packaging industry. The invention compositions described herein can be cured in a variety of ways, with or without a catalyst. In some embodiments, the well-known “ene” reaction can be used to cure the compositions described herein, and therefore no catalyst is required.Type: GrantFiled: April 12, 2007Date of Patent: October 25, 2011Assignee: Designer Molecules, Inc.Inventor: Stephen Dershem
-
Publication number: 20110241527Abstract: A carbon nanotube slurry consists of carbon nanotubes, glass powder, and organic carrier. The field emission device includes an insulative substrate, a cathode conductive layer, and an electron emission layer. The cathode conductive layer is located on a surface of the insulative substrate. The electron emission layer is located on a surface of the cathode conductive layer. The electron emission layer consists of a glass layer and a plurality of carbon nanotubes electrically connected to the cathode conductive layer.Type: ApplicationFiled: October 14, 2010Publication date: October 6, 2011Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: QI CAI, XING ZHANG, HAI-YAN HAO, SHOU-SHAN FAN
-
Publication number: 20110240980Abstract: In accordance with various embodiments, an organic electronic device includes an n-type dopant material including an imidazole-based material having a hydrogen-based material bonded between nitrogen atoms. The n-type dopant material n-dopes an organic material, and can be used to mitigate degradation in mobility due to conditions such as exposure to ambient atmosphere, which can effect an undesirable reduction in charge transport. Other embodiments are directed to carbon nanotubes or graphene structures with this type of n-type dopant, wherein the Fermi level for the carbon nanotubes or graphene structures is below ?2.5 eV to effect such n-type doping.Type: ApplicationFiled: April 5, 2011Publication date: October 6, 2011Inventors: Peng Wei, Zhenan Bao
-
Publication number: 20110227002Abstract: Disclosed herein are an aromatic imide-based dispersant for CNTs and a carbon nanotube composition comprising the same. Having an aromatic ring structure advantageously realizing adsorption on carbon nanotubes, the dispersant, even if used in a small amount, can disperse a large quantity of carbon nanotubes.Type: ApplicationFiled: June 3, 2011Publication date: September 22, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyo Sug LEE, Jae Young CHOI, Seon Mi YOON, Hyuk Soon CHOI, Kwang Hee KIM
-
Publication number: 20110215416Abstract: Nicotinamide and/or a compound which is chemically combined with nicotinamide may be used as a carbon nanotube (“CNT”) n-doping material. CNTs n-doped with the CNT n-doping material may have long-lasting doping stability in the air without de-doping. Further, CNT n-doping state may be easily controlled when using the CNT n-doping material. The CNT n-doping material and/or CNTs n-doped with the CNT n-doping material may be used for various applications.Type: ApplicationFiled: May 18, 2011Publication date: September 8, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jaeyoung CHOI, Hyeon Jin SHIN, Seonmi YOON, Boram KANG, Young Hee LEE, Un Jeong KIM
-
Patent number: 8003017Abstract: An adhesive composition includes an ethylene-vinyl acetate copolymer, a copolymer of an aliphatic heterocyclic compound and a monomer having an aromatic ring, a binder resin, a radical polymerizable material, and a radical initiator.Type: GrantFiled: December 18, 2008Date of Patent: August 23, 2011Assignee: Cheil Industries, Inc.Inventors: Byeong Hwan Jeon, Kyoung Soo Park, Bong Yong Kim, Young Jin Kwon, Kang Bae Yoon, Kyong Hun Shin, Hyun Hee Namkung, Hyun Joo Seo, Cheon Seok Lee
-
Patent number: 8003014Abstract: The present application is directed to dielectric isolators for use in aircraft fuel systems to control lightning induced current and allow dissipation of electrostatic charge. The dielectric isolators are configured to have a high enough impedance to limit lightning currents to low levels, but low enough impedance to allow electrostatic charge to dissipate without allowing buildup. Although the dielectric isolators may develop a potential difference across the dielectric length due to the effects of lightning currents and its inherent impedance, they are configured to withstand these induced voltages without dielectric breakdown or performance degradation. In one embodiment, the dielectric isolator includes a tube constructed of a composition including a thermoplastic organic polymer (e.g., PEEK) and carbon nanotubes, and a pair of couplings attached to opposing ends of the tube.Type: GrantFiled: July 2, 2008Date of Patent: August 23, 2011Assignee: Eaton CorporationInventors: Clifton P. Breay, Sara D. Pfannenstiel, Stephen C. Matthews, Edward W. S. Bryant
-
Publication number: 20110199716Abstract: The present application is directed to electric double layer capacitance (EDLC) devices. In one aspect, the present application is directed to an electrode comprising an activated carbon cryogel having a tunable pore structure wherein: the surface area is at least 1500 m2/g as determined by nitrogen sorption at 77K and BET analysis; and the pore structure comprises a pore volume ranging from about 0.01 cc/g to about 0.25 cc/g for pores having a pore diameter of 0.6 to 1.0 nm. In another aspect, the present application is directed to an Electric Double Layer Capacitor (EDLC) device comprising an activated cryogel.Type: ApplicationFiled: October 5, 2010Publication date: August 18, 2011Applicants: EnerG2, Inc., University of WashingtonInventors: Aaron M. Feaver, Guozhong Cao
-
Publication number: 20110198543Abstract: Upon dispersing fine carbon fibers into water, by using an anionic surfactant having a high electrostatic repulsion effect, an nonionic surfactant having a high stereoscopic repulsion effect, and an anionic surfactant having high electrostatic and stereoscopic repulsion effects, in combination, an aqueous dispersion of fine carbon fibers which shows a high dispersibility without causing significant cohesion of mutual fine carbon fibers, and maintains a mean particle diameter (d50) of not more than 350 nm in a wide concentration range from a relatively low concentration to a relatively high concentration is provided.Type: ApplicationFiled: October 9, 2009Publication date: August 18, 2011Applicant: HODOGAYA CHEMICAL CO., LTD.,Inventors: Naohiro Tarumoto, Tomoko Tamura, Takayuki Tsukada
-
Patent number: 7998368Abstract: Carbon nanotubes (CNTs) are dispersed in an aqueous buffer solution consisting of at least 50 weight percent water and a remainder weight percent that includes a buffer material. The buffer material has a molecular structure defined by a first end, a second end, and a middle disposed between the first and second ends. The first end is a cyclic ring with nitrogen and oxygen heteroatomes, the middle is a hydrophobic alkyl chain, and the second end is a charged group.Type: GrantFiled: November 18, 2008Date of Patent: August 16, 2011Assignee: United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jae-Woo Kim, Cheol Park, Sang H. Choi, Peter T. Lillehei, Joycelyn S. Harrison
-
Publication number: 20110193030Abstract: The invention relates to compositions comprising certain propylene-olefin-copolymer waxes, and carbon nanotubes (CNTs), the compositions being in the form of masterbatches, compounds or conductive polymers, and their use for producing conductive polymers and articles made of conductive polymers.Type: ApplicationFiled: October 30, 2009Publication date: August 11, 2011Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Pirko Kolditz, Gerd Hohner
-
Publication number: 20110186785Abstract: There is provided a method for producing a nanocarbon material dispersion in which individual nanocarbon materials are separated from each other by mild processing. The method for producing a nanocarbon material dispersion of the present invention is characterized by including a step of preparing a composition by mixing a nanocarbon material with a dispersion medium comprising an amphiphilic triphenylene derivative, and a step of subjecting the composition to a mechanical dispersing processing.Type: ApplicationFiled: February 13, 2009Publication date: August 4, 2011Inventors: Masaru Kato, Shigeo Maruyama, Takuzo Aida, Takanori Fukushima, Tatsuhiro Yamamoto, Yuhei Miyauchi
-
Publication number: 20110186786Abstract: Compositions comprising graphene sheets and at least one charged organic compound.Type: ApplicationFiled: July 31, 2010Publication date: August 4, 2011Applicant: VORBECK MATERIALS CORP.Inventors: Dan Scheffer, John Lettow, Vipin Varma
-
Patent number: 7985354Abstract: Carbon nanomaterials are stabilized and uniformly dispersed in a liquid such as water using a simple procedure. Methylcellulose is added to hot water where it separates and expands with a temperature of about 80-90 degree Celsius. Methylcellulose swiftly dissolves when the water cools down. Carbon nanomaterials are dispersed in a solvent and sonicated. This nanomaterial dispersed solvent is then added to the methylcellulose dispersed water and mechanically stirred. The resulting uniform mixture is up to 90% by weight nanomaterials and is stable for months.Type: GrantFiled: March 19, 2010Date of Patent: July 26, 2011Assignee: Oceanit Laboratories, Inc.Inventor: Vinod P. Veedu
-
Publication number: 20110165711Abstract: The present invention relates to a carbon nanotube dispersion liquid includes carbon nanotubes, a self assembly material having —NR2 in one terminal thereof and —Si(OR)3 or —SH in the other terminal thereof, and a solvent, as well as its usage.Type: ApplicationFiled: November 30, 2010Publication date: July 7, 2011Inventors: Jaehyun Kim, Seongkee Park, Jungshik Lim, Taeyoung Lee, Mincheol Kim
-
Patent number: 7972537Abstract: A carbon nanotube-conductive polymer composite includes a plurality of CNTs and conductive polymer fibers. The CNTs are connected with each other to form a network. The conductive polymer fibers adhere to surfaces of the CNTs and/or tube walls of the CNTs.Type: GrantFiled: December 19, 2008Date of Patent: July 5, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Chui-Zhou Meng, Chang-Hong Liu, Shou-Shan Fan
-
Publication number: 20110156019Abstract: Methods for producing p-doped organic semiconductor material with a fullerene derivative having at least one electron-withdrawing substituent covalently attached thereto, and semiconductor compositions prepared thereby are provided. Also provided are electronic devices, such as transistors, solar-cells, illuminating devices, OLEDs and detectors, comprised of these p-doped organic semiconductor materials.Type: ApplicationFiled: September 9, 2009Publication date: June 30, 2011Applicant: Technion Research & Development Foundation, Ltd.Inventors: Nir Tessler, Olga Solomeshch
-
Publication number: 20110159360Abstract: The object is to stabilize the dispersion of a conductive additive in a composition for a battery without deteriorating the conducting property of the conductive additive, and to thereby improve the battery performance of a battery produced by using the composition. Disclosed is a composition for a battery, which comprises: at least one dispersing agent selected from an organic dye derivative having a basic functional group, an anthraquinone derivative having a basic functional group, an acridone derivative having a basic functional group and a triazine derivative having a basic functional group; a carbon material as a conductive additive; and optionally an acid, a solvent, a binder, and a positive electrode active material or a negative electrode active material.Type: ApplicationFiled: December 22, 2008Publication date: June 30, 2011Inventors: Naohisa Hirota, Tadashi Itabashi, Shinichiro Maki
-
Patent number: 7968013Abstract: Nicotinamide and/or a compound which is chemically combined with nicotinamide may be used as a carbon nanotube (“CNT”) n-doping material. CNTs n-doped with the CNT n-doping material may have long-lasting doping stability in the air without de-doping. Further, CNT n-doping state may be easily controlled when using the CNT n-doping material. The CNT n-doping material and/or CNTs n-doped with the CNT n-doping material may be used for various applications.Type: GrantFiled: January 8, 2009Date of Patent: June 28, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jaeyoung Choi, Hyeon Jin Shin, Seonmi Yoon, Boram Kang, Young Hee Lee, Un Jeong Kim
-
Patent number: 7964173Abstract: The present invention provides feedstock compositions for use of the production of an activated carbon for electric double layer capacitor electrodes or the production of needle coke, comprising a first heavy oil with an initial boiling point of 300° C. or higher, an asphalten content of 12 percent by mass or less, a saturate content of 50 percent by mass or more and a sulfur content of 0.3 percent by mass or less, produced as a residue resulting from vacuum-distillation of a petroleum-based oil and a second heavy oil with an initial boiling point of 150° C. or higher and a sulfur content of 0.5 percent by mass or less, produced by subjecting a hydrocarbon oil to fluidized catalytic cracking.Type: GrantFiled: December 27, 2006Date of Patent: June 21, 2011Assignees: Nippon Oil Corporation, Nippon Petroleum Refining Company, LimitedInventors: Takashi Oyama, Kazuhisa Nakanishi, Tamotsu Tano, Keiji Higashi, Ippei Fujinaga, Hiromitsu Hashisaka, Kiwamu Takeshita, Masaki Fujii, Hideki Ono
-
Patent number: 7959888Abstract: The present invention provides a raw coke having such a structure that the graphitized product resulting from graphitization of the raw coke at a temperature of 2800° C. under an inactive gas atmosphere will have ratios of the crystallite size to the lattice constant of 360 or less in the (002) plane and 1500 or less in the (110) plane, as a raw coke providing active carbon produced by alkali-activating the raw coke, which is reduced in remaining alkali content and can simplify washing operation because washing liquid can easily pass through the activated carbon, or as a raw coke for the production of needle coke.Type: GrantFiled: December 27, 2006Date of Patent: June 14, 2011Assignees: Nippon Oil Corporation, Nippon Petroleum Refining Company, LimitedInventors: Takashi Oyama, Kazuhisa Nakanishi, Tamotsu Tano, Keiji Higashi, Ippei Fujinaga, Hiromitsu Hashisaka, Toshitaka Fujii, Takashi Noro, Akio Sakamoto, Kiwamu Takeshita, Keizou Ikai, Masaki Fujii, Hideki Ono
-
Publication number: 20110133132Abstract: The present invention provides a chemically functionalized submicron graphitic fibril having a diameter or thickness less than 1 ?m, wherein the fibril is free of continuous thermal carbon overcoat, free of continuous hollow core, and free of catalyst. The fibril is obtained by splitting a micron-scaled carbon fiber or graphite fiber along the fiber axis direction. These functionalized graphitic fibrils exhibit exceptionally high electrical conductivity, high thermal conductivity, high elastic modulus, high strength and good interfacial bonding with a matrix resin in a composite. The present invention also provides several products that contain submicron graphitic fibrils: (a) paper, thin-film, mat, and web products; (b) rubber or tire products; (c) energy conversion or storage devices, such as fuel cells, lithium-ion batteries, and supercapacitors; (d) adhesives, inks, coatings, paints, lubricants, and grease products; (e) heavy metal ion scavenger; (f) absorbent (e.g.Type: ApplicationFiled: July 16, 2010Publication date: June 9, 2011Inventors: Aruna Zhamu, Bor Z. Jang
-
Publication number: 20110133133Abstract: Methods of preparing conductive thermoset precursors containing carbon nanotubes is provided. Also provided is a method of preparing conductive thermosets containing carbon nanotubes. The carbon nanotubes may in individual form or in the form of aggregates having a macromorpology resembling the shape of a cotton candy, bird nest, combed yarn or open net. Preferred multiwalled carbon nanotubes have diameters no greater than 1 micron and preferred single walled carbon nanotubes have diameters less than 5 nm. Carbon nanotubes may be adequately dispersed in a thermoset precursor by using a extrusion process generally reserved for thermoplastics. The thermoset precursor may be a precursor for epoxy, phenolic, polyimide, urethane, polyester, vinyl ester or silicone. A preferred thermoset precursor is a bisphenol A derivative.Type: ApplicationFiled: February 8, 2011Publication date: June 9, 2011Inventors: Alan Fischer, Timothy Jozokos, James Leacock, Andrew Rich
-
Patent number: 7956106Abstract: An organic siloxane composite material containing polyaniline/carbon black and a preparation method thereof are disclosed. The organic siloxane composite material containing polyaniline/carbon black consists of a plurality of polyaniline/carbon black composites distributed in organic siloxane precursor while the organic siloxane composite material containing polyaniline/carbon black includes from 10 to 30 weight percent of polyaniline/carbon black composites. The preparation method of organic siloxane composite material containing polyaniline/carbon black includes the steps of: distributing a plurality of polyaniline/carbon black composites in organic siloxane precursor to produce a first solution; and adding a cross-linking agent into the first solution, after reaction with each other, an organic siloxane composite material containing polyaniline/carbon black is produced.Type: GrantFiled: October 30, 2007Date of Patent: June 7, 2011Assignee: Chung Shan Institute of Science and Technology, Armaments Bureau, M.N.D.Inventors: Cheng-Chien Yang, Kuo-Hui Wu, Wang Tsae Gu, Yuen-Hsin Peng
-
Publication number: 20110127471Abstract: A composition including graphene; and a dopant selected from the group consisting of an organic dopant, an inorganic dopant, and a combination including at least one of the foregoing.Type: ApplicationFiled: July 30, 2010Publication date: June 2, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyeon-jin SHIN, Won-mook CHOI, Jae-young CHOI, Seon-mi YOON
-
Patent number: 7951310Abstract: The present invention discloses a nanophase carbon black grafted with organic compounds, comprising (a) a first component: 100 parts by weight of original carbon black particles, and (b) a second component: 5-300 parts by weight of grafting organic compounds having or producing free radicals which is grafted onto the surface of the carbon black, wherein the molecular weight of the grafting organic compounds is 100-10000, and the nanophase carbon black has a particle size of 1-100 nm. The invention also discloses the synthesis thereof and articles therefrom.Type: GrantFiled: March 28, 2006Date of Patent: May 31, 2011Assignee: East China University of Science and TechnologyInventors: Chifei Wu, Xuanquan Zhou, Weihong Guo, Xiliang Zhang, Guozhang Wu, Haiyan Xu, Xianhui Li, Jianfeng Huang, Na Yu, Shengying Qian, Jing Chen, Liang Fang, Fei Shen, Li Lang, Qiuying Zhang, Jingjie Han
-
Patent number: 7947201Abstract: Disclosed herein is a masterbatch comprising the reaction product of 75 to 94.5 weight percent of a poly(arylene ether), 5 to 24.5 weight percent of a polyamide and 0.5 to 2.5 weight percent of citric acid, wherein weight percent is based on the combined weight of the poly(arylene ether), polyamide and citric acid. Methods of making and using the masterbatch are also described.Type: GrantFiled: September 30, 2008Date of Patent: May 24, 2011Assignee: Sabic Innovative Plastics IP B.V.Inventor: Sai-Pei Ting
-
Publication number: 20110114170Abstract: Disclosed is a conductive paste including; a conductive powder including a plurality of conductive particles, a metallic glass disposed between adjacent conductive particles of the conductive powder, and an organic vehicle in which the conductive powder and metallic glass are disposed, and a solar cell using the conductive paste.Type: ApplicationFiled: November 10, 2010Publication date: May 19, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Eun-Sung LEE, Se-Yun KIM, Sang-Soo JEE
-
Patent number: 7935276Abstract: The present invention relates to novel composites that incorporate carbon nanospheres into a polymeric material. The polymeric material can be any polymer or polymerizable material compatible with graphitic materials. The carbon nanospheres are hollow, graphitic nanoparticles. The carbon nanospheres can be manufactured from a carbon precursor using templating catalytic nanoparticles. The unique size, shape, and electrical properties of the carbon nanospheres impart beneficial properties to the composites incorporating these nanomaterials.Type: GrantFiled: December 20, 2006Date of Patent: May 3, 2011Assignee: Headwaters Technology Innovation LLCInventors: Bing Zhou, Cheng Zhang, Martin Fransson, Raymond B. Balée
-
Publication number: 20110086176Abstract: Provided are a method of doping carbon nanotubes, p-doped carbon nanotubes prepared using the method, and an electrode, a display device or a solar cell including the carbon nanotubes.Type: ApplicationFiled: October 7, 2010Publication date: April 14, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seon-mi YOON, Seong-jae CHOI, Hyeon-jin SHIN, Jae-young CHOI, Sung-jin KIM, Young-hee LEE
-
Patent number: 7923527Abstract: The invention provides a carbon nanotube compound and method for producing the same. The method of the invention comprises the following steps. Firstly, Aniline-trimer and DMAc(dimethyl acetamide) solution are mixed to form a first solution. Secondly, Dianhydride and DMAc solution are mixed to form a second solution. The first solution and the second are mixed to form a third solution. Additionally, carboxyl-multiwall carbon nanotubes (c-MWNT), Diaminodiphenylether and DMAc solution are mixed to form a fourth solution. The third solution and the fourth are mixed to form a polyamic acid/CNT solution. Some polyamic acid/CNT solution is spread on a substrate and processed by a thermal treatment, and a carbon nanotube compound is eventually produced.Type: GrantFiled: October 14, 2009Date of Patent: April 12, 2011Assignee: Chung-Shan Institute of Science and Technology Armaments Bureau, Ministry of National DefenseInventors: Cheng-Chien Yang, Jui-Ming Yeh, Chia-Shiang Yang, Yuen-Hsin Peng, Kuan-Yeh Huang
-
Publication number: 20110073836Abstract: A high power density photo-electronic and photo-voltaic material comprising a bio-inorganic nanophotoelectronic material with a photosynthetic reaction center protein encapsulated inside a multi-wall carbon nanotube or nanotube array. The array can be on an electrode. The photosynthetic reaction center protein can be immobilized on the electrode surface and the protein molecules can have the same orientation. A method of making a high power density photo-electronic and photo-voltaic material comprising the steps of immobilizing a bio-inorganic nanophotoelectronic material with a photosynthetic reaction center protein inside a carbon nanotube, wherein the immobilizing is by passive diffusion, wherein the immobilizing can include using an organic linker.Type: ApplicationFiled: May 10, 2010Publication date: March 31, 2011Applicant: The Government of the United States of America as represented by the Secretary of the NavyInventors: Nikolai Lebedev, Scott A. Trammell, Stanislav Tsoi, Mark E. Twigg, Joel M. Schnur
-
Patent number: 7893172Abstract: An oligomer or polymer comprising a first repeat unit and a second repeat unit that may be the same or different, the first repeat unit having formula (I): wherein each E independently represents optionally substituted nitrogen or optionally substituted phosphorus, with the proviso that at least one E is optionally substituted phosphorus; each Ar1, Ar2 and Ar3 is the same or different and independently represents an optionally substituted aryl or heteroaryl; n is 0-3; and in the case of unsubstituted nitrogen and phosphorus, the second repeat unit is directly conjugated to the first repeat unit.Type: GrantFiled: August 18, 2004Date of Patent: February 22, 2011Assignee: Merck Patent GmbHInventors: Carl Towns, Ian Rees, Ilaria Grizzi, Paul Wallace
-
Publication number: 20110037033Abstract: The present teachings provide, in part, methods of separating two-dimensional nanomaterials by atomic layer thickness. In certain embodiments, the present teachings provide methods of generating graphene nanomaterials having a controlled number of atomic layer(s).Type: ApplicationFiled: August 13, 2010Publication date: February 17, 2011Inventors: Alexander A. Green, Mark C. Hersam
-
Publication number: 20110039157Abstract: The invention aims to improve the charge/discharge cycle characteristics of an anodic carbon material for a lithium secondary battery. An anodic carbon material for a lithium secondary battery according to the present invention comprises: particles containing carbon, or a metal or metalloid, or an alloy, oxide, nitride, or carbide thereof, the particle capable of absorbing and releasing lithium ions; a resinous carbon material enclosing the particles; and a network structure formed from carbon nanofibers and/or carbon nanotubes that bond to the surfaces of the particles and that enclose the particles.Type: ApplicationFiled: April 23, 2009Publication date: February 17, 2011Applicant: Sumitomo Bakelite Co., Ltd.Inventors: Tatsuro Sasaki, Tetsushi Ono, Tsuyoshi Watanabe
-
Publication number: 20110039124Abstract: A method for producing a conductive composite includes coating a composition (B) containing a dispersing agent (A) having a hydroxyl group in the molecule and a conductive material on a substrate, and coating a liquid containing a compound (C) represented by the formula (I) below and/or a hydrolysate of the compound (C) on a surface coated with the composition (B): (R1)mMXn-m ??(1).Type: ApplicationFiled: March 24, 2009Publication date: February 17, 2011Applicant: TORAY INDUSTRIES, INC.Inventors: Shuko Ikeuchi, Hidekazu Nishino, Masahito Yoshikawa, Kenichi Sato, Osamu Watanabe
-
Patent number: 7884300Abstract: A method of realizing selective separation of metallic single-walled carbon nanotubes and semiconducting carbon nanotubes from bundled carbon nanotubes; and obtaining of metallic single-walled carbon nanotubes separated at high purity through the above method. Metallic single-walled carbon nanotubes are dispersed one by one from bundled carbon nanotubes not only by the use of a difference in interaction with amine between metallic single-walled carbon nanotubes and semiconducting carbon nanotubes due to a difference in electrical properties between metallic single-walled carbon nanotubes and semiconducting carbon nanotubes but also by the use of the fact that an amine is an important factor in SWNTs separation. The thus dispersed carbon nanotubes are subjected to centrifugation, thereby attaining separation from non-dispersed semiconducting carbon nanotubes.Type: GrantFiled: July 29, 2005Date of Patent: February 8, 2011Assignee: University of TsukubaInventors: Takeshi Akasaka, Takatsugu Wakahara, Yutaka Maeda
-
Patent number: 7875212Abstract: Embodiments of the present invention provide polymer matrix nanocomposites reinforced with nano-scale materials such as nanoparticles and carbon nanotubes and methods of fabricating. The nanomaterials are provided within relatively low weight fractions, for example in the range of approximately 0.01 to about 0.4% by weight and distributed within the matrix by a magnetic mixing procedure to provide substantially uniform reinforcement of the nanocomposites. Advantageously, these nanocomposites provide significantly enhanced tensile strength, strain to failure, and fracture toughness over corresponding neat matrices.Type: GrantFiled: February 9, 2010Date of Patent: January 25, 2011Assignee: University of HawaiiInventors: Mohammad Naghi Ghasemi Nejhad, Vinod P Veedu, Andrea Yuen, Davood Askari
-
Patent number: 7875211Abstract: A high performance multifunctional cementitious nanocomposite material is made by adding a nano admixture to the water used in a conventional cementitious material manufacturing process. The nano admixture is made by dispersing nanomaterials in a solvent and sonicating the mixture, adding a hydrophilic emulsifier, thickener, additive or cellulose derived compound to hot water, where it separates and expands, cooling the water, causing the compound to dissolve, and then adding the solvent and nanomaterial mixture to the water and mechanically mixing. The contact between the nanomaterials and the surrounding matrix changes with applied stress, affecting the volume electrical response of the finished nanocomposite material. By measuring the electrical resistance of the material, its structural health, as well as the stress applied to it, can be monitored. A bridge made with the material is monitored for structural integrity and for the weight, speed, and location of traffic over the bridge.Type: GrantFiled: February 19, 2010Date of Patent: January 25, 2011Assignee: Oceanit Laboratories, Inc.Inventor: Vinod P. Veedu
-
Publication number: 20110003239Abstract: A curable composition comprising: (A) a hydrocarbon compound having a plurality of carbon-carbon double bonds, and (B) a carbonaceous material. The hydrocarbon compound may preferably be 1,2-polybutadiene. The curable composition may be used for a fuel cell separator.Type: ApplicationFiled: September 9, 2010Publication date: January 6, 2011Applicant: Showa Denko K.K.Inventors: Etsuko Kadowaki, Tadashi Iino, Hiroshi Uchida, Terutoshi Kumaki, Kentaro Seki
-
Patent number: 7854862Abstract: Facile ways towards the integration of the regioregular poly(3-alkylthiophene)s onto carbon nanotubes, providing multifunctional materials that combine the extraordinary properties of the carbon nanotubes with those of regioregular poly(3-alkylthiophene)s, are presented.Type: GrantFiled: August 13, 2008Date of Patent: December 21, 2010Assignee: Advent TechnologiesInventors: Christos Chochos, Joannis Kallitsis
-
Patent number: 7850874Abstract: Methods and devices are provided relating to the homogeneous deposition of a composite film of carbon nanotubes by electrophoresis. The methods comprise linking carbon nanotubes to matrix particles prior to electrophoretic deposition. The methods improve the adhesion of the composite film to the substrate and reduce the surface roughness. Carbon nanotube films and electron field emission cathodes fabricated by this process demonstrate enhanced electron field emission characteristics.Type: GrantFiled: September 20, 2007Date of Patent: December 14, 2010Assignee: Xintek, Inc.Inventors: Mei Lu, Jie Liu, Huaizhi Geng, Bo Gao
-
Publication number: 20100294998Abstract: Disclosed herein are an aromatic imide-based dispersant for CNTs and a carbon nanotube composition comprising the same. Having an aromatic ring structure advantageously realizing adsorption on carbon nanotubes, the dispersant, even if used in a small amount, can disperse a large quantity of carbon nanotubes.Type: ApplicationFiled: May 27, 2010Publication date: November 25, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyo Sug LEE, Jae Young CHOI, Seon Mi YOON, Hyuk Soon CHOI, Kwang Hee KIM
-
Publication number: 20100297449Abstract: The present invention is a transparent conductive film characterized in that: a major component of the transparent conductive film is a single-walled carbon nanotube; the single-walled carbon nanotubes are present in a bundle state; and a rope-like shape, which is a state where the bundles are gathered together, can be confirmed by scanning electron microscope observation. The present invention is also a method for producing a liquid crystal alignment film using a transparent electrode substrate, with an electrode layer being the aforementioned transparent conductive film. According to the invention, a transparent electrode substrate with high wettability can be obtained, and further a method for producing an alignment film by which a uniform alignment film can be obtained without deteriorating an electrical characteristic is provided.Type: ApplicationFiled: October 24, 2007Publication date: November 25, 2010Applicant: KURARAY CO., LTD.Inventors: Takahiro Kitano, Masayasu Ogushi
-
Publication number: 20100291759Abstract: Separation of carbon nanotubes or fullerenes according to diameter through non-covalent pi-pi interaction with molecular clips is provided. Molecular clips are prepared by Diels-Alder reaction of polyacenes with a variety of dienophiles. The pi-pi complexes of carbon nanotubes with molecular clips are also used for selective placement of carbon nanotubes and fullerenes on substrates.Type: ApplicationFiled: May 10, 2010Publication date: November 18, 2010Applicant: International Business Machines CorporationInventors: Ali Afzali-Ardakani, Cherie R. Kagan, Rudolf Tromp
-
Patent number: 7834068Abstract: An epoxy composite material containing polyaniline/carbon black composite and preparation method thereof are disclosed. The epoxy composite material containing polyaniline/carbon black composite includes a plurality of polyaniline/carbon black composite with core-shell structure distributed in epoxy resin while polyaniline covers on surface of nanoscale carbon black to form the polyaniline/carbon black composite with core-shell structure. The polyaniline/carbon black composite with core-shell structure contains 10 to 30 wt. % of nanoscale carbon black.Type: GrantFiled: October 30, 2007Date of Patent: November 16, 2010Assignee: Chung Shan Institute of Science and Technology, Armaments Bureau, M.N.D.Inventors: Cheng-Chien Yang, Kuo-Hui Wu, Wang Tsae Gu, Yuen-Hsin Peng
-
Patent number: 7824788Abstract: CCM formed of a membrane having on one of the two surfaces a first electrocatalytic layer containing a catalyst and on the other one a second electrocatalytic layer containing a catalyst, said electrocatalytic layers and said membrane containing (per)fluorinated ionomers, said CCM having the following characteristics: size variations, for both the orthogonal directions of the plane xy, lower than 15%, by dipping the CCM, after drying at 105° C. under vacuum for one hour in demineralized water at 100° C. for 30 minutes; the CCM remains substantially unchanged after having been subjected to treatments of 60 cycles by dipping in water at 80° C. for 8 hours and then in water at the temperature of 25° C. for 16 hours.Type: GrantFiled: March 15, 2006Date of Patent: November 2, 2010Assignee: Solvay Solexis S.p.A.Inventors: Vincenzo Arcella, Alessandro Ghielmi, Paola Vaccarono, Luca Merlo
-
Publication number: 20100270513Abstract: A coating composition including a base composition, comprising at least one organic material and a plurality of carbon nano-tubes, wherein a concentration of the carbon nano-tubes is between 0.05 to 30 percent of a total weight of the coating composition, wherein the base composition comprises: i) methyl ethyl keton, ii) phenolic resin, and iii) ethyl alcohol, wherein each of the plurality of carbon nano-tubes has a length up to about 1.0 mm, wherein a diameter of each of the plurality of carbon nano-tubes is in a range from about 3 nm to about 200 nm, wherein the coating composition has a volume resistivity in a range from about 1×10?8 to about 103 ohm-m, and wherein the coating composition has a friction coefficient that is lower than about 0.2?.Type: ApplicationFiled: April 2, 2010Publication date: October 28, 2010Inventors: Luke Haylock, Liang Zeng
-
Patent number: 7820129Abstract: The invention relates to a method for producing carbon or HV graphite electrodes, in which a carbon carrier is mixed with a hydrocarbon-containing binder, and the mixture is subjected to a coking process and/or graphitization process, and one or more synthetic titanium compounds are additionally added to the raw materials. The titanium compound is preferably comprised of TiO2. Iron oxide can be added as an accompanying substance.Type: GrantFiled: September 16, 2004Date of Patent: October 26, 2010Assignee: Sachtleben Chemie GmbHInventors: Djamschid Amirzadeh-Asl, Dieter Fünders