Patents Assigned to Cabot Corporation
  • Patent number: 9574087
    Abstract: Methods for production of carbon black using high temperature feedstock at temperatures exceeding about 300° C. with fouling control are provided. An apparatus for production of carbon black according to these methods also is provided.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: February 21, 2017
    Assignee: Cabot Corporation
    Inventors: Serguei Nester, Frederick H. Rumpf, Yakov E. Kutsovsky, Charles A. Natalie
  • Patent number: 9568847
    Abstract: Metal-oxide composite particles are used as a toner additive.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: February 14, 2017
    Assignee: Cabot Corporation
    Inventors: Dmitry Fomitchev, Eugene N. Step
  • Patent number: 9546286
    Abstract: Disclosed herein are resistive composites comprising at least one resin; at least one carbon black having a surface hydrophobically modified with at least one organic group, the at least one organic group having a molecular weight of the composite of 4000 or less and comprising the formula —X(G)-, wherein X is directly attached to the at least one carbon black and is selected from arylene, heteroarylene, and alkylene, G is a substituent of X, and —X(G)- is nonionic; and wherein the resistive composite has a volume resistivity, Rv, at a relative volume fraction, XCB, of the at least one carbon black in the coating, where Rv is at least 106 ohm-cm; and log Rv has a substantially linear relationship with XCB when XCB is varied from 0.1 to 0.5. Also disclosed are coatings made from such composites, such as coatings for rollers/belts for office automation machines, and methods of making such coatings.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: January 17, 2017
    Assignee: Cabot Corporation
    Inventors: Eugene N. Step, Andriy Korchev, Agathagelos Kyrlidis, Clovis D. Haynes, Gregory R. Schulz, John R. Szwec
  • Publication number: 20160355406
    Abstract: Methods to recover or separate cesium formate or rubidium formate or both from a mixed alkali metal formate blend are described. One method involves adding cesium sulfate or rubidium sulfate to the mixed alkali metal formate blend in order to preferentially precipitate potassium sulfate from the mixed alkali metal formate blend. Another method involves adding cesium carbonate or cesium bicarbonate or both to preferentially precipitate potassium carbonate/bicarbonate and/or other non-cesium or non-rubidium metals from the mixed alkali metal blend. Further optional steps are also described. Still one other method involves converting cesium sulfate to cesium hydroxide.
    Type: Application
    Filed: August 23, 2016
    Publication date: December 8, 2016
    Applicant: Cabot Corporation
    Inventor: Bart F. Bakke
  • Patent number: 9475057
    Abstract: Some of the embodiments described herein relate to liner elements such as lifter bars that can be used in grinding mills. In one example, a lifter bar has a top elastomeric layer and a bottom elastomeric layer, the composition of the top elastomeric layer being different from that of the bottom elastomeric layer. In another example, a lifter bar is constructed from carbon black-reinforced natural rubber and has a leading face and a protrusion at a top region of the leading face. In a further example, a lifter bar is fabricated from carbon black-reinforced natural rubber and has a leading face geometry such that face angle ? remains 25° or less over an operational period measured form the time the lifter bar is new, until the height of the lifter bar is reduced by a certain amount, e.g., by 80%. Also disclosed are methods for manufacturing an elastomeric liner element and for grinding an ore.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: October 25, 2016
    Assignee: Cabot Corporation
    Inventors: William R. Williams, Anand Prakash
  • Patent number: 9458524
    Abstract: A method to recover cesium, rubidium, or both from secondary ore is described and involves using scans and sorting techniques. Refined secondary ore is further described.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: October 4, 2016
    Assignee: Cabot Corporation
    Inventors: Bart Bakke, Claude Deveau
  • Patent number: 9452966
    Abstract: Methods to recover or separate cesium formate or rubidium formate or both from a mixed alkali metal formate blend are described. One method involves adding cesium sulfate or rubidium sulfate to the mixed alkali metal formate blend in order to preferentially precipitate potassium sulfate from the mixed alkali metal formate blend. Another method involves adding cesium carbonate or cesium bicarbonate or both to preferentially precipitate potassium carbonate/bicarbonate and/or other non-cesium or non-rubidium metals from the mixed alkali metal blend. Further optional steps are also described. Still one other method involves converting cesium sulfate to cesium hydroxide.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: September 27, 2016
    Assignee: Cabot Corporation
    Inventor: Bart F. Bakke
  • Patent number: 9399864
    Abstract: A method of making a nonwoven wet laid aerogel blanket is provided. The aerogel blanket can exhibit improved thermal conductivity, lower corrosivity, lower dust production and a uniform structure. The blanket can be made from an aerogel floc that is formed from a slurry of aerogel particles.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: July 26, 2016
    Assignee: Cabot Corporation
    Inventors: Susnata Samanta, Peter F. Pescatore, Bryan P. Thomas
  • Patent number: 9388300
    Abstract: Disclosed herein are high structured carbon blacks, methods of synthesis and treatment, and dispersions and inkjet ink formulations prepared therefrom. The carbon black can have the following properties: OAN ?170 mL/100 g; and STSA ranging from 160 to 220 m2/g. The carbon black can also have the following properties: OAN ?170 mL/100 g; and a ratio of STSA/BET surface area ranging from 0.7 to 1.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: July 12, 2016
    Assignee: Cabot Corporation
    Inventors: Andrew P. Dikan, Stephane F. Rouanet, Heather E. Clarke, Bruce E. MacKay, Danny Pierre
  • Patent number: 9382450
    Abstract: The present invention relates to a composition comprising a silane modified metal oxide, wherein the silane modified metal oxide comprises a metal oxide having attached at least one silyl group, and wherein the silyl group comprises at least one —SO3?M+, —OSO3?M+, —SSO3?M+, —NHSO3?M+, —NR?SO3?M+, —NR?3+A?, or -Q+A? group. R?, which can be the same or different, is a branched or unbranched, substituted or unsubstituted alkyl, alkenyl or alkynyl group or a substituted or unsubstituted aryl, heteroaryl, alkylaryl; or arylalkyl group, M+ is a cationic counterion, and A? is a anionic counterion. The present invention further relates to the silane modified metal oxide used in the disclosed chemical mechanical polishing composition.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: July 5, 2016
    Assignee: Cabot Corporation
    Inventor: James A. Belmont
  • Patent number: 9368787
    Abstract: A paste suitable for a negative plate of a lead-acid battery, the paste comprising lead oxide and carbon black, wherein the carbon black has the following properties: (a) a BET surface area between about 100 and about 2100 m2/g; and (b) an oil adsorption number (OAN) in the range of about 35 to about 360 cc/100 g, provided that the oil absorption number is less than the 0.14×the BET surface area+65.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: June 14, 2016
    Assignee: Cabot Corporation
    Inventors: Paolina Atanassova, Berislav Blizanac, Miodrag Oljaca, Toivo T. Kodas, Geoffrey D. Moeser, Pavel A. Kossyrev, Ned J. Hardman
  • Publication number: 20160137866
    Abstract: An aqueoue carbon black millbase, an aqueous carbon black liquid coating, and a method of making the millbase and liquid coating are provided. The carbon blacks are modified carbon blacks that are engineered to be able to be stirred into an aqueous vehicle without high energy milling of the carbon black. The modified carbon blacks include low organic treatment levels and the millbase and liquid coating do not require large quantities of dispersant. The resultant coatings exhibit excellent viscosity, color, hiding power and stability.
    Type: Application
    Filed: July 10, 2014
    Publication date: May 19, 2016
    Applicant: Cabot Corporation
    Inventors: Lang H. NGUYEN, Qingling ZHANG, Lynne K. LAROCHELLE RICHARD
  • Patent number: 9287565
    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: Grant
    Filed: April 4, 2013
    Date of Patent: March 15, 2016
    Assignee: Cabot Corporation
    Inventors: Paolina Atanassova, Berislav Blizanac, Kenneth C. Koehlert, Geoffrey D. Moeser, Miodrag Oljaca, Yipeng Sun, Danny Pierre, Jeffrey S. Sawrey
  • Patent number: 9284419
    Abstract: The present invention relates to a method of preparing polymer compositions comprising modified metal oxides in a polymer wherein a nanoparticle dispersion of a metal oxide in a non-aqueous solvent is combined with at least one coupling agent to form a nanoparticle dispersion of a modified metal oxide in the non-aqueous solvent. The nanoparticle dispersion is then combined with a polymer followed by the removal of the non-aqueous solvent or, alternatively, combined with a monomer, which is polymerized to form the polymer and removal of the solvent, in any order. Also disclosed are polymer compositions prepared by this method.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: March 15, 2016
    Assignee: Cabot Corporation
    Inventors: Dhaval A. Doshi, Zhifeng Li
  • Patent number: 9281520
    Abstract: A paste suitable for a negative plate of a lead-acid battery comprises at least (a) a lead-based active material and an expander mixture comprising (b) carbon, (c) barium sulfate and (d) a lignosulfonate, wherein at least part of at least two of said components (a) to (d) are present in the paste as composite particles.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: March 8, 2016
    Assignee: Cabot Corporation
    Inventors: Paolina Atanassova, Yipeng Sun, Berislav Blizanac, Toivo Kodos, Mark J. Hampden-Smith, Miodrag Oljaca
  • Patent number: 9267048
    Abstract: Methods to control electrical resistivity in filler-polymer compositions are described using dual phase fillers. Polymer compositions containing the dual phase fillers are further described.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: February 23, 2016
    Assignee: Cabot Corporation
    Inventors: Andriy Korchev, Jeremy Huffman, Agathagelos Kyrlidis, Pavel Kossyrev, Eugene Step
  • Patent number: 9238736
    Abstract: The present invention relates to surface modified organic black pigments, surface modified carbon blacks, pigment mixtures and dispersions formed with these pigments, curable compositions, black matrices, and products incorporating them. The surface modified organic black pigment can have attached at least one organic group having the formula -X-Z, wherein X, which is directly attached to the pigment, represents an arylene group, a heteroarylene group, an alkylene group, an aralkylene group, or an alkarylene group, and Z represents at least one ionic group, at least one ionizable group, at least one nonionic group, at least one polymeric group, or any combinations thereof. Also disclosed are carbon black pigment combinations with the surface modified organic black pigments, low dielectric black dispersions, films, and black matrices containing them. Methods of preparing and making these various materials also are provided.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: January 19, 2016
    Assignee: Cabot Corporation
    Inventors: Agathagelos Kyrlidis, Alexander I. Shakhnovich, Qingling Zhang, Joseph B. Carroll
  • Patent number: 9238724
    Abstract: A method of producing an elastomer composite. The method includes A) combining a first fluid comprising elastomer latex with a second fluid comprising particulate filler; B) causing the elastomer latex to coagulate, thereby forming masterbatch crumb; C) bringing the masterbatch crumb to a water content of about 1 weight percent to about 20 weight percent, thereby forming a de-watered coagulum; D) removing water from the de-watered coagulum by subjecting the dewatered coagulum to mechanical energy, thereby causing the dewatered coagulum to heat as a result of friction, while allowing the dewatered coagulum to achieve a temperature of about 130° C. to about 190° C., wherein water content is reduced to about 0.5% to about 3% and wherein substantially all of the decrease in water content is accomplished by evaporation, thereby producing a masticated masterbatch; and E) subjecting the masticated masterbatch to at least an additional 0.3 MJ/kg of mechanical energy while further reducing the water content.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: January 19, 2016
    Assignee: Cabot Corporation
    Inventors: Meng-Jiao Wang, Ting Wang, Michael D. Morris, Xuan Zhang, Martin C. Green, Vijay R. Tirumala
  • Patent number: 9233862
    Abstract: A method for cleaning an oil spill in a marine environment includes forming a particle-stabilized emulsion containing seawater, carbon black and at least one oil spill component and allowing the at least one oil spill component to degrade, thereby removing said component from the marine environment. Carbon black can be added to an oil-seawater mixture to form a stabilized emulsion containing at least one oil spill component and the oil spill component allowed to degrade, thereby removing the at least one oil spill component from the oil spill. Also disclosed is an emulsion that includes one or more oil spill components, seawater and carbon black particles.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: January 12, 2016
    Assignee: Cabot Corporation
    Inventors: Arijit Bose, Vijay T. John, Ani Tzankova Nikova
  • Publication number: 20160002470
    Abstract: Methods for the production of carbon black using an extender fluid(s) are provided as well as methods to control one or more particle properties of carbon black utilizing extender fluids and other techniques.
    Type: Application
    Filed: February 26, 2014
    Publication date: January 7, 2016
    Applicant: CABOT CORPORATION
    Inventors: Chad J. Unrau, David O. Hunt, David M. Matheu, Serguei Nester