Treating Carbon Black Patents (Class 423/449.2)
  • Patent number: 11892372
    Abstract: A disclosed component may include at least one split-ring resonator, which may be embedded within a material. The split ring resonator may be formed from a three-dimensional (3D) monolithic carbonaceous growth and may detect an electromagnetic ping emitted from a user device. The split ring resonator may generate an electromagnetic return signal in response to the electromagnetic ping. The electromagnetic return signal may indicate a state of the material in a position proximate to a respective split ring resonator. In some aspects, the split-ring resonator may resonate at a first frequency in response to the electromagnetic ping when the material is in a first state, and may resonate at a second frequency in response to the electromagnetic ping when the material is in a second state. A resonant frequency of the 3D monolithic carbonaceous growth may be based on physical characteristics of the material.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: February 6, 2024
    Assignee: Lyten, Inc.
    Inventors: Michael Stowell, Carlos Montalvo, Jacques Nicole
  • Patent number: 9796819
    Abstract: Provided is a process for producing a wet masterbatch which, without deteriorating a reinforcing property of a rubber composition and rubber physical properties, micronizes a filler slurry by controlling an amount of functional groups on a filler surface, and improves filler dispersibility in the rubber wet masterbatch and the rubber composition. The process for producing a wet masterbatch comprises: a step of producing a slurry solution having a pH of 8 or more by dispersing carbon black having an average amount of surface acidic functional groups (?eq/m2) of 0.15 or more and less than 3.00; a step of producing a mixture by mixing the slurry solution and a rubber latex solution in a liquid phase; and a step of drying the mixture.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: October 24, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Fumiteru Nishiura, Yukari Kanda, Kazuaki Someno
  • Patent number: 9410953
    Abstract: The present invention relates to a formulations and methods for coupling a reactant (or probe precursor) to a functionalized surface for purposes of forming an arrayed sensor. This method includes the steps of: providing a surface having a reactive functional group; and introducing onto the surface, at a plurality of discrete locations, two or more compositions of the invention, which include a different reactant (probe precursor) and a non-nucleophilic additive, wherein such introduction is carried out under conditions effective to allow for covalent binding of the reactant to the surface via the reactive functional group. This results in a probe-functionalized array that substantially overcomes the problem of surface morphological anomalies on the array surface. Use of the resulting arrays in various detection systems is also encompassed.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: August 9, 2016
    Assignee: University of Rochester
    Inventors: Charles R. Mace, Amrita R. Yadav, Benjamin L. Miller
  • Publication number: 20150056127
    Abstract: The present disclosure relates to a process for obtaining carbon black powder with a sulfur content of less than 0.07%. The process includes step of reacting carbon black powder with a sulfur content of 1-2% with an alkali metal or salt thereof, in a fluid media, at a temperature in the range of 100 ° C. to 350 ° C. and pressure in the range of 10 to 500 psig. It is found that in accordance with the process of the present disclosure, the sulfur content was reduced substantially from that of about 1.25% to that of 0.05%, resulting in about 96% desulfurization.
    Type: Application
    Filed: March 28, 2013
    Publication date: February 26, 2015
    Inventors: Sandeep Vasant Chavan, Harshad Ravindra Kini, Shobhit Gupta
  • Patent number: 8895142
    Abstract: The present invention, in part, relates to a carbon black having a) a nitrogen BET surface area (BET) of from about 600 m2/g to about 2100 m2/g, b) a CDBP value in mL/100 g of from about (?2.8+(b*BET)) to about (108+(b*BET)), where b is 0.087 and BET is expressed in m2/g, and c) an apparent density (p, g/cm3) of at least about 0.820+q*BET, where q=?2.5×10?4, as determined at a compressive force (P) of 200 kgf/cm2 on dry carbon black powder. Energy storage devices, such as electrochemical double layer capacitors (EDLC's), containing the carbon black are also disclosed. Methods for making the carbon blacks and EDLC's made with them are also provided.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: November 25, 2014
    Assignee: Cabot Corporation
    Inventors: Agathagelos Kyrlidis, Raymond M. Sawka, Geoffrey D. Moeser, Pavel A. Kossyrev, Ned J. Hardman
  • Patent number: 8835351
    Abstract: An additive for hydroconversion processes includes a solid organic material having a particle size of between about 0.1 and about 2,000 ?m, a bulk density of between about 500 and about 2,000 kg/m3, a skeletal density of between about 1,000 and about 2,000 kg/m3 and a humidity of between 0 and about 5 wt %. Methods for preparation and use of the additive are also provided. By the use of the additive of the present invention, the hydroconversion process can be performed at high conversion level.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: September 16, 2014
    Assignee: Intevep, S.A.
    Inventors: Carlos Canelon, Angel Rivas, Omayra Delgado, Miguel Paiva, Giuseppe Di Sarli, Luis Zacaris
  • Patent number: 8728432
    Abstract: A method of producing a surface-treated carbon black powder dispersion includes subjecting carbon black fine particles having a volume average particle size of 100 nm to 20 ?m to wet granulation and drying by heating to obtain granulated carbon black having a hardness of 12 cN or less and a pH of less than 7, grinding the granulated carbon black to obtain a ground product having a volume average particle size of 20 nm to 20 ?m, and subjecting the ground product to wet oxidization in an aqueous medium. The resulting surface-treated carbon black powder dispersion exhibits excellent print density, print quality, discharge stability, and storage stability when used as an inkjet printer aqueous black ink.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: May 20, 2014
    Assignee: Tokai Carbon Co., Ltd.
    Inventors: Hironori Arai, Masanobu Maeda
  • Publication number: 20130295462
    Abstract: A carbon black having a combination of properties with values in ranges selected to promote high conductivity, high hydrophobicity, and reduced outgassing in lead acid batteries while maintaining high charge acceptance and cycleability. The carbon black has a Brunauer-Emmett-Teller (BET) surface area ranging from 100 m2/g to 1100 m2/g combined with one or more properties, e.g., a surface energy (SE) of 10 mJ/m2 or less, and/or a Raman microcrystalline planar size (La) of at least 22 ?, e.g., ranging from 22 ? to 50 ?. In some cases, the carbon black has a statistical thickness surface area (STSA) of at least 100 m2/g, e.g., ranging from 100 m2/g to 600 m2/g.
    Type: Application
    Filed: April 4, 2013
    Publication date: November 7, 2013
    Inventors: Paolina Atanassova, Berislav Blizanac, Kenneth C. Koehlert, Geoffrey D. Moeser, Miodrag Oljaca, Yipeng Sun, Danny Pierre, Jeffrey S. Sawrey
  • Patent number: 8574527
    Abstract: The invention relates to a process for aftertreating carbon black, wherein the carbon black is subjected to a carrier gas flow in a fluidized bed apparatus in the lower region of the apparatus, an additional gas stream is introduced into the fluidized bed apparatus, and the carbon black is aftertreated in the fluidized bed which arises.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: November 5, 2013
    Assignee: Evonik Carbon Black GmbH
    Inventors: Frank Stenger, Klaus Bergemann, Manfred Nagel
  • Patent number: 8420044
    Abstract: Carbon black with a content of polycyclic aromatic hydrocarbons measured by the 22 PAH method of less than 5 ppm and an STSA surface area of <90 m2/g. The carbon black is prepared by treating the starting carbon black with electromagnetic radiation. The carbon black can be used in rubber, plastics, printing inks, liquid inks, inkjet inks, toners, coating materials, paints, adhesives, batteries, pastes, paper, fuel cells, bitumen, concrete and other building materials.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: April 16, 2013
    Assignee: Evonik Carbon Black GmbH
    Inventors: Klaus Bergemann, Manfred Dannehl, Ansgar Oelmann, Britta Schwartze, Christoph Tontrup
  • Patent number: 8366970
    Abstract: A method for treating a carbon allotrope including providing a carbon allotrope selected from the group consisting of carbon black, amorphous carbon, glassy carbon, graphite, graphene, fullerenes, or a mixture thereof; surface treating the carbon allotrope by coupling the carbon allotrope with a polyhedral oligomeric silsesquioxane. Also described is a surface treated carbon allotrope having a polyhedral oligomeric silsesquioxane coupled to the surface of the carbon allotrope. Also described is a coating composite for imaging components including a film forming resin; and a plurality of polyhedral oligomeric silsesquioxane surface treated carbon allotrope particles substantially uniformly dispersed in the film forming resin, and imaging components including the coating composite.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: February 5, 2013
    Assignee: Xerox Corporation
    Inventors: Brian Gilmartin, Jin Wu, Liang-Bih Lin
  • Patent number: 8282905
    Abstract: The fullerenic structures include fullerenes having molecular weights less than that of C60 with the exception of C36 and fullerenes having molecular weights greater than C60. Examples include fullerenes C50, C58, C130, and C176. Fullerenic structure chemically bonded to a carbon surface is also disclosed along with a method for tethering fullerenes to a carbon material. The method includes adding functionalized fullerene to a liquid suspension containing carbon material, drying the suspension to produce a powder, and heat treating the powder.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: October 9, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Anish Goel, Jack B. Howard, John B. Vander Sande
  • Patent number: 8236274
    Abstract: The invention relates to a carbon black having an aggregate size distribution which has a (d90-d10)/d50 ratio of less than or equal to 1.1. The carbon blacks are produced by admixing hot air if desired to a gas mixture comprising a carrier gas and a carbon black feedstock, passing the gas mixture into a burner pipe, burning the gas mixture at the burner pipe openings, and drawing the flames under suction, together with the ambient air drawn in freely under suction from the outside, through a cooled, narrowing gap, and carrying out cooling, the cooled, narrowing gap having a height (h) to width (b) ratio of 1-100, the width (b) being 0.5 to 10 mm, and the flow rate at the narrowest point of the gap being 10-200 m/s. The carbon blacks of the invention can be used as non-reinforcing filler, reinforcing filler, UV stabilizer, conductive black, pigment or reducing agent.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: August 7, 2012
    Assignee: Evonik Carbon Black GmbH
    Inventors: Catharina Quitmann, Alfons Karl, Matthias Katzer, Kai Krauss, Michael Stanyschöfsky
  • Patent number: 8119033
    Abstract: The present invention provides a granulated acetylene black which can be easily and well dispersed when it is incorporated in at least one of a resin and a rubber, the process for producing it, and its composition. A granulated acetylene black has an average aspect ratio of at most 1.1, an average maximum particle size of from 0.2 mm to 1 mm and an average particle size of from 0.2 to 0.6 mm. The granulated acetylene black is produced, after stirring and granulating a mixture containing from 35 to 50 mass % of an acetylene black original powder having an iodine adsorption amount of from 80 to 100 mg/g and a DBP absorption amount of from 140 to 220 ml/100 g and from 50 to 65 mass % of water, and subjecting to selection treatment, classification treatment or both treatments.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: February 21, 2012
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventor: Hiroshi Sakashita
  • Patent number: 8034316
    Abstract: Carbon blacks, such as rubber blacks, having a low PAH concentration are described. Furthermore, elastomeric or rubber compositions containing the carbon black of the present invention are further described, as well as methods of making carbon black having a low PAH concentration.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: October 11, 2011
    Assignee: Cabot Corporation
    Inventors: Irina S. Yurovskaya, William L. Sifleet, Steven J. List, Martin C. Green, Anand Prakash
  • Publication number: 20110183489
    Abstract: An improved switching material for forming a composite article over a substrate is disclosed. A first volume of nanotubes is combined with a second volume of nanoscopic particles in a predefined ration relative to the first volume of nanotubes to form a mixture. This mixture can then be deposited over a substrate as a relatively thick composite article via a spin coating process. The composite article may possess improved switching properties over that of a nanotube-only switching article. A method for forming substantially uniform nanoscopic particles of carbon, which contains one or more allotropes of carbon, is also disclosed.
    Type: Application
    Filed: March 29, 2011
    Publication date: July 28, 2011
    Inventors: Eliodor G. GHENCIU, Thomas RUECKES, Thierry YAO, Tom KOCAB
  • Patent number: 7959890
    Abstract: The invention relates to recycled rubber produced by a process comprising the steps of: a) shredding cleaned rubber tires into shreds less than 2? long; b) pyrolyzing the shreds in a reaction chamber of a thermal processor in a first anaerobic environment to produce a char; c) drawing off volatile organics from the reaction chamber; c) removing the char from the reaction chamber; d) cooling the char in a second anaerobic environment; e) removing metal and textile components from the char to obtain pyrolytic carbon black; f) milling and sizing the pyrolytic carbon black so obtained into particles of 325 mesh size or smaller; and, g) utilizing the pyrolytic carbon black from the previous step in a polymerization process that produces said recycled rubber. It also relates to the high quality pyrolytic carbon black recovered from this process.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: June 14, 2011
    Assignee: RIPP Resource Recovery Corporation
    Inventors: Andrew D. E. MacIntosh, Vincent W. Y. Wong
  • Patent number: 7847009
    Abstract: The present invention claims that a carbon black with unique morphological properties provides improved carbon black dispersion and improved rubber compound properties, such as improved fatigue life and abrasion resistance. The carbon black of current invention has a ratio of aggregate size HI and particle size HI greater than 1.70, the surface area STSA of 100-180 M2/g and the structure OAN less than 140 cc/100 g.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: December 7, 2010
    Assignee: Columbian Chemicals Company
    Inventors: Weidong Wong, Charles R. Herd, Jorge A. Ayala
  • Patent number: 7758841
    Abstract: The present invention is directed to novel processes for the functionalization (derivatization) of carbon nanotubes and, as an extension, to fullerenes and other carbon surfaces. Generally, such processes involve reductive pathways. In some embodiments, carbon nanotubes are reacted with alkali metal and organic halides in anhydrous liquid ammonia. In other embodiments, polymers are grown from carbon nanotube sidewalls by reacting carbon nanotubes with alkali metal and monomer species in anhydrous liquid ammonia.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: July 20, 2010
    Assignee: William Marsh Rice University
    Inventors: W. Edward Billups, Anil K. Sadana, Feng Liang, Robert H. Hauge
  • Publication number: 20100119437
    Abstract: Carbon black, comprising particles having a number average particle size of Feret's diameter of 2 to 100 nm and an average roundness of 100 to 130.
    Type: Application
    Filed: January 21, 2010
    Publication date: May 13, 2010
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Masafumi Uchida, Shingo Asai, Chifei Wu
  • Patent number: 7700064
    Abstract: A carbon fiber having a total content of Li, Na, Ti, Mn, Fe, Ni and Co metal elements of no more than 50 ppm and a fiber diameter of 0.001 to 2 ?m and not branched and a assembly of a plurality of the carbon fibers.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: April 20, 2010
    Assignee: Teijin Limited
    Inventors: Hiroshi Sakurai, Tetsuo Ban, Masumi Hirata, Toru Sawaki
  • Patent number: 7641882
    Abstract: The fullerenic structures include fullerenes having molecular weights less than that of C60 with the exception of C36 and fullerenes having molecular weights greater than C60. Examples include fullerenes C50, C58, C130, and C176. Fullerenic structure chemically bonded to a carbon surface is also disclosed along with a method for tethering fullerenes to a carbon material. The method includes adding functionalized fullerene to a liquid suspension containing carbon material, drying the suspension to produce a powder, and heat treating the powder.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: January 5, 2010
    Assignee: Massachusetts Institute of Technology
    Inventors: Anish Goel, Jack B. Howard, John B. Vander Sande
  • Publication number: 20090208751
    Abstract: The invention is directed to processes for increasing the surface area of a carbon black starting material and for forming mesoporous carbon black. The process includes the step of contacting a carbon black starting material having a first BET nitrogen surface area with an oxidant in a fluidized bed under conditions effective to form a carbon black product having a second BET nitrogen surface area greater than the first BET nitrogen surface area. The invention is also directed to carbon black product formed by this process.
    Type: Application
    Filed: February 12, 2009
    Publication date: August 20, 2009
    Inventors: Martin C. Green, Roscoe Taylor, Geoffrey D. Moeser, Agathagelos Kyrlidis, Raymond M. Sawka
  • Publication number: 20090155157
    Abstract: The invention relates to a process for aftertreating carbon black, wherein the carbon black is subjected to a carrier gas flow in a fluidized bed apparatus in the lower region of the apparatus, an additional gas stream is introduced into the fluidized bed apparatus, and the carbon black is aftertreated in the fluidized bed which arises.
    Type: Application
    Filed: April 28, 2008
    Publication date: June 18, 2009
    Applicant: Evonik Degussa GmbH
    Inventors: Frank Stenger, Klaus Bergemann, Manfred Nagel
  • Patent number: 7541308
    Abstract: Fuel cells are described and contain a gas diffusion electrode, a gas diffusion counter-electrode, an electrolyte membrane located between the electrode and counter-electrode. The electrode or counter-electrode or both contain at least one modified carbon product. The electrolyte membrane can also or alternatively contain modified carbon products as well. The modified carbon product is a carbon product having attached at least one organic group. Preferably the organic group is a proton conducting group and/or an electron conducting group. The present invention preferably permits the elimination of fluoropolymer binder in the active or catalyst layer and further preferably leads to a thinner active layer and/or a thinner electrolyte membrane. Other uses and advantages are also described.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: June 2, 2009
    Assignee: Cabot Corporation
    Inventor: Jameel Menashi
  • Publication number: 20080159947
    Abstract: Carbon blacks, such as rubber blacks, having a low PAH concentration are described. Furthermore, elastomeric or rubber compositions containing the carbon black of the present invention are further described, as well as methods of making carbon black having a low PAH concentration.
    Type: Application
    Filed: November 6, 2007
    Publication date: July 3, 2008
    Inventors: Irina S. Yurovskaya, William L. Sifleet, Steven J. List, Martin C. Green, Anand Prakash
  • Patent number: 7328738
    Abstract: An improved heat exchanger which resists fouling of the heat exchange surface by minimizing the temperature difference between the heat exchanger surface and the fluid stream in contact with the heat exchange surface. In one embodiment, a heat exchanger comprises an outer shell, the outer shell comprising a first inlet operable to pass a first fluid stream, an inner shell at least partially disposed within the outer shell, the inner shell comprising a second inlet and an outlet operable to pass the first fluid stream, and a heat exchange surface comprising a plurality of tubes operable to pass a second fluid stream.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: February 12, 2008
    Assignee: Cabot Corporation
    Inventors: Martin C. Green, William L. Sifleet
  • Patent number: 7301061
    Abstract: The present invention is a utilization method for rubber-containing, organic industrial and municipal wastes which may be applied in the fields of petrochemical and chemical industry. Raw material is liquefied at 60-310° C. under 0.1-0.2 MP a pressure in aprotic hydrocarbon solvent in any neutral gas or CO2 atmosphere with simultaneous collection from reactor of liquid hydrocarbon fractions with the boiling temperatures reaching 200° C. and above and further rectification of fractions up to 200° C. and then drying solid residues at temperatures 270-310° C. Application of solvents and gases makes this process to be ecologically clean. The present invention makes possible a solution of the ecological problem of utilization of rubber-containing and other wastes.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: November 27, 2007
    Inventors: Igor Skworcow, Alexei Matveev
  • Patent number: 7294185
    Abstract: Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium salt. In another process at least one diazonium salt reacts with a carbon black in a protic reaction medium. Carbon black products which may be prepared according to process of the invention are described as well as uses of such carbon black products in plastic compositions, rubber compositions, paper compositions, and textile compositions.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: November 13, 2007
    Assignee: Cabot Corporation
    Inventors: James A. Belmont, Robert M. Amici, Collin P. Galloway
  • Patent number: 6962952
    Abstract: A process for production of a modified carbon black, at a cheaper cost, for rubber reinforcement having the superior tan ? temperature dependence of silica and an excellent abrasion resistance and further having no problems arising due to a low electrical conductivity is provided granulating the carbon black, after or while adding a water-dispersed silica to the carbon black in a granulator.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: November 8, 2005
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Masayuki Kawazoe, Tetsuji Kawazura
  • Patent number: 6803026
    Abstract: This invention relates to carbon black pellets obtained by compaction of carbon black powder in the presence of auxiliary substances, which pellets, despite the compaction, surprisingly exhibit greater color intensity than the powders on which they are based.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: October 12, 2004
    Assignee: Bayer Chemicals AG
    Inventors: Günter Linde, Uwe Hempelmann, Manfred Eitel
  • Patent number: 6780388
    Abstract: The present invention relates to (1) carbon powder having a primary particle size of 100 nm or less and an X-ray crystallite plane spacing C0 of less than 0.680 nm, preferably of 0.6730 nm or less, which shows a volume resistivity of 0.1 &OHgr;·cm or less in the pressurized state under a pressure of 2 MPa, and containing boron in a range of 0.1 to 5% by mass, (2) a method for producing the carbon powder, (3) an electrically conducting carbon composite powder wherein above-described carbon powder is mixed with fibrous carbon, particularly vapor grown carbon fiber, (4) a catalyst for solid polymer electrode fuel battery using above-described carbon powder or electrically conducting carbon composite powder, (5) a polymer electrolyte fuel battery cell using the catalyst, and (6) a polymer electrolyte fuel battery using the catalyst.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: August 24, 2004
    Assignee: Showa Denko K.K.
    Inventors: Tsutomu Masuko, Yoichi Nanba
  • Patent number: 6780389
    Abstract: A process for the production of modified carbon black, in which a carbon black dispersion containing carbon black, water and wetting agent, is mixed with an acid, aqueous solution or suspension of a primary amine and then reacted with sodium nitrite solution.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: August 24, 2004
    Assignee: Degussa AG
    Inventors: Alfons Karl, Ralph McIntosh, Werner Kalbitz, Horst Kleinhenz, Gerd Tauber, Stephan Luedtke
  • Patent number: 6770367
    Abstract: The invention provides a process for preparing a modified carbon black with an adhering layer of aluminum oxide and/or hydroxide. This process involves (a) impregnating a starting carbon black with a colloidal suspension formed by hydrolysis of a solution of aluminum alkoxide in an alcoholic solvent, (b) removing the alcoholic solvent by evaporation, and (c) heat-treating the black thus impregnated so as to transform the aluminuous layer present at its surface into an adhering layer of aluminum oxide and/or hydroxide. The modified carbon black prepared by the process is also provided.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: August 3, 2004
    Assignee: Compagnie Générale des Etablissements Michelin - Michelin & Cie
    Inventors: Emmanuel Custodero, Laure Simonot, Jean-Claude Tardivat
  • Publication number: 20040109816
    Abstract: The present invention provides methods for the incorporation of sulfonate functional groups onto the surface of particulate carbonaceous materials and provides several surface-modified carbonaceous material compositions resulting therefrom. The composition can further comprise a conducting polymer. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode assemblies, and fuel cells. A method for preparing the composition comprises sulfonating particulate carbonaceous material. The method can further comprise metallizing the sulfonated carbonaceous material.
    Type: Application
    Filed: May 23, 2003
    Publication date: June 10, 2004
    Inventors: Bollepalli Srinivas, Anderson O. Dotson
  • Patent number: 6740151
    Abstract: Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium salt. In another process at least one diazonium salt reacts with a carbon black in a protic reaction medium. Carbon black products which may be prepared according to process of the invention are described as well as uses of such carbon black products in plastic compositions, rubber compositions, paper compositions, and textile compositions.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: May 25, 2004
    Assignee: Cabot Corporation
    Inventors: James A. Belmont, Robert M. Amici, Collin P. Galloway
  • Patent number: 6716372
    Abstract: The invention provides novel lithium-mixed metal materials which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode formed from the novel lithium-mixed metal materials. Methods for making the novel lithium-mixed metal materials and methods for using such lithium-mixed metal materials in electrochemical cells are also provided. The lithium-mixed metal materials comprise lithium and at least one other metal besides lithium. Preferred materials are lithium-mixed metal phosphates which contain lithium and two other metals besides lithium.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: April 6, 2004
    Assignee: Valence Technology, Inc.
    Inventors: Jeremy Barker, M. Yazid Saidi, Jeffrey Swoyer
  • Publication number: 20040054033
    Abstract: A surface-treated carbon black obtained by coating the surface of carbon black with a mixture of (A) a silane compound having an amino group and (B) a silicon-containing compound having substantially all organic groups bonded with silicon through oxygen, whereby a resistance to heat buildup and abrasion resistance are improved and dispersability into a rubber compound is improved.
    Type: Application
    Filed: July 7, 2003
    Publication date: March 18, 2004
    Inventor: Yoshiaki Kirino
  • Publication number: 20040018140
    Abstract: A process for the production of modified carbon black, in which a carbon black dispersion containing carbon black, water and wetting agent, is mixed with an acid, aqueous solution or suspension of a primary amine and then reacted with sodium nitrite solution.
    Type: Application
    Filed: July 25, 2002
    Publication date: January 29, 2004
    Applicant: DEGUSSA AG
    Inventors: Alfons Karl, Ralph McIntosh, Werner Kalbitz, Horst Kleinhenz, Gerg Tauber, Stephan Luedtke
  • Patent number: 6652641
    Abstract: A process for producing a modified carbon black for rubber reinforcement comprising: adding, to carbon black, water-dispersed silica and an organosilane compound having the formula (I): R1n—Si—(OR2)4-n  (I) wherein R1 represents a hydrocarbon group having 1 to 10 carbon atoms, R2 represents a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, n is 1 or 2, and R1 and R2 may be the same or different, and mixing and dispersing the mixture.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: November 25, 2003
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Tetsuji Kawazura
  • Publication number: 20030213540
    Abstract: This invention relates to a composite of a melamine derivative, particularly a liquid melamine derivative, and carbon black. A representative melamine derivative is, for example, comprised of an alkoxymethylmelamine such as hexamethoxymethylmelamine. The invention further relates to a rubber composition containing such composite of a melamine derivative and carbon black and to a rubber composition containing such composite as a methylene donor in combination with a methylene acceptor and the reaction product thereof in situ within said rubber composition. Such rubber composition may be a component of an article of manufacture, which may contain or be exclusive of, wire reinforcement, such as for example a component of a tire, vehicular track or industrial belt or hose.
    Type: Application
    Filed: April 8, 2003
    Publication date: November 20, 2003
    Inventors: Karen Elaine Burkholder, Kristine Nicole Ludwig, James Robert Tuttle
  • Publication number: 20030180210
    Abstract: The invention concerns a method for producing post-treated carbon black, where the carbon black is fluidized in the fluidized bed while adding fluidizing agents and brought into contact with a post-treatment agent.
    Type: Application
    Filed: February 24, 2003
    Publication date: September 25, 2003
    Inventor: Alfons Karl
  • Publication number: 20030095914
    Abstract: Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium salt. In another process at least one diazonium salt reacts with a carbon black in a protic reaction medium. Carbon black products which may be prepared according to process of the invention are described as well as uses of such carbon black products in plastic compositions, rubber compositions, paper compositions, and textile compositions.
    Type: Application
    Filed: May 3, 2002
    Publication date: May 22, 2003
    Inventors: James A. Belmont, Robert M. Amici, Collin P. Galloway
  • Publication number: 20030086860
    Abstract: The present invention provides a method of producing a porous carbon material in which a soft carbon-type carbon material is activated with alkali in the presence of a carboxylic acid ion and at least one metal ion selected from the group consisting of iron ions, cobalt ions, manganese ions and nickel ions. The method is capable of industrially producing a porous carbon material having a specific surface area per unit volume of 1000 (m2/cm3) or more in high yield and at low cost. The packing density of the porous carbon material can also be increased, and a high capacitance per unit volume can be obtained when the porous carbon material is used as a polarizable electrode material. Therefore, the present invention also provides an electrical double layer capacitor having a small size and a large capacitance, and using the porous carbon material as a polarizable electrode.
    Type: Application
    Filed: September 21, 2001
    Publication date: May 8, 2003
    Inventors: Kenichi Uehara, Yoshihisa Murata
  • Patent number: 6551393
    Abstract: A modified particle is disclosed wherein a particle has an attached group having the formula: wherein Ar represents an aromatic group; R1 represents a bond, an arylene group, an alkylene group, wherein R4 is an alkyl or alkylene group or an aryl or arylene group; R2 and R3, which can be the same or different, represent hydrogen, an alkyl group, an aryl group, —OR5, —NHR5, —NR5R5, or —SR5, wherein R5, which is the same or different, represents an alkyl group or an aryl group; and SFR represents a stable free radical.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: April 22, 2003
    Assignee: Cabot Corporation
    Inventors: Wayne Devonport, Robert S. Whitehouse, Russell L. Warley, Thimma R. Rawalpally, Hairuo Tu
  • Patent number: 6533859
    Abstract: The invention comprises a composition comprising a combination of carbon black and at least one surface treating agent selected from the group consisting of quinone compounds, quinoneimine compounds and quinonediimine compounds, as well as methods of obtaining the composition and the use of the composition in dispersing carbon black in a natural or synthetic polymer. The composition achieves increased dispersibility and improved mixing characteristics of the carbon black and improved processability of the carbon black containing polymer.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: March 18, 2003
    Assignees: Flexsys America L.P., Columbian Chemicals Company
    Inventors: Rakshit Lamba, Frederick Ignatz-Hoover
  • Patent number: 6525105
    Abstract: A method of separating a vulcanized or unvulcanized rubber into a rubber ingredient and a filler ingredient such as carbon black which comprises liquefying the vulcanized or unvulcanized rubber at ordinary temperature and ordinary pressure; and a method of separating from a rubber composite a component other than those. The methods comprise immersing, optionally with stirring, a rubber composite or a vulcanized rubber composition each in the form of a block in an organic solvent containing 0.01 to 50% peroxide such as benzoyl peroxide to liquefy the vulcanized rubber composition in the solvent and separating the filler ingredient and other components by centrifugal separation, membrane separation, or decantation.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: February 25, 2003
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Yoshitaka Udagawa, Susumu Ashizawa
  • Patent number: 6500401
    Abstract: A method of making carbon foam is described which involves pyrolizing a mixture containing at least one pyrolizable substance and at least one unpyrolizable material and then removing the unpyrolizable material to obtain the carbon foam. Carbon foam made by this process is also described. Incorporating the carbon foam in a variety of end use applications including electrodes, thermal insulation material, polymers, and the like is also described.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: December 31, 2002
    Assignee: Cabot Corporation
    Inventors: Steven R. Reznek, Robert K. Massey
  • Patent number: 6494946
    Abstract: Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium salt. In another process at least one diazonium salt reacts with a carbon black in a protic reaction medium. Carbon black products which may be prepared according to process of the invention are described as well as uses of such carbon black products in plastic compositions, rubber compositions, paper compositions, and textile compositions.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: December 17, 2002
    Assignee: Cabot Corporation
    Inventors: James A. Belmont, Robert M. Amici, Collin P. Galloway
  • Publication number: 20020112646
    Abstract: A beaded black containing at least one pelletizing additive and at least one synthetic oil. The beaded black can be produced in a pelletizing machine and used as a filler and/or pigment in rubber and plastic articles and as a pigment for the production of printing inks.
    Type: Application
    Filed: December 14, 2001
    Publication date: August 22, 2002
    Inventors: Karin Otto, Heinz Zoch, Jan Kopietz