Patents by Inventor Amit K. Naskar

Amit K. Naskar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9453129
    Abstract: A polymer blend material comprising: (i) a first polymer containing hydrogen bond donating groups having at least one hydrogen atom bound to a heteroatom selected from oxygen, nitrogen, and sulfur, or an anionic version of said first polymer wherein at least a portion of hydrogen atoms bound to a heteroatom is absent and replaced with at least one electron pair; (ii) a second polymer containing hydrogen bond accepting groups selected from nitrile, halogen, and ether functional groups; and (iii) at least one modifying agent selected from carbon particles, ether-containing polymers, and Lewis acid compounds; wherein, if said second polymer contains ether functional groups, then said at least one modifying agent is selected from carbon particles and Lewis acid compounds. Methods for producing the polymer blend, molded forms thereof, and articles thereof, are also described.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: September 27, 2016
    Assignee: UT-BATTELLE, LLC
    Inventor: Amit K. Naskar
  • Patent number: 9441113
    Abstract: A method of recovering carbon black includes the step of providing a carbonaceous source material containing carbon black. The carbonaceous source material is contacted with a sulfonation bath to produce a sulfonated material. The sulfonated material is pyrolyzed to produce a carbon black containing product comprising a glassy carbon matrix phase having carbon black dispersed therein. A method of making a battery electrode is also disclosed.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: September 13, 2016
    Assignee: UT-BATTELLE, LLC
    Inventors: Amit K. Naskar, Mariappan Parans Paranthaman, Zhonghe Bi
  • Publication number: 20160254543
    Abstract: A method of recovering carbon black includes the step of providing a carbonaceous source material containing carbon black. The carbonaceous source material is contacted with a sulfonation bath to produce a sulfonated material. The sulfonated material is pyrolyzed to produce a carbon black containing product comprising a glassy carbon matrix phase having carbon black dispersed therein. The pyrolysis can be conducted at a temperature from 1100° C. to 1490° C. A method of making a battery electrode and a lithium ion or sodium ion battery is also disclosed.
    Type: Application
    Filed: February 29, 2016
    Publication date: September 1, 2016
    Inventors: Amit K. NASKAR, Mariappan Parans PARANTHAMAN
  • Patent number: 9340677
    Abstract: A method for surface treating a carbon-containing material in which carbon-containing material is reacted with decomposing ozone in a reactor (e.g., a hollow tube reactor), wherein a concentration of ozone is maintained throughout the reactor by appropriate selection of at least processing temperature, gas stream flow rate, reactor dimensions, ozone concentration entering the reactor, and position of one or more ozone inlets (ports) in the reactor, wherein the method produces a surface-oxidized carbon or carbon-containing material, preferably having a surface atomic oxygen content of at least 15%. The resulting surface-oxidized carbon material and solid composites made therefrom are also described.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: May 17, 2016
    Assignee: UT-BATTELLE, LLC
    Inventors: Felix Leonard Paulauskas, Soydan Ozcan, Amit K. Naskar
  • Publication number: 20150368471
    Abstract: A polymer blend material comprising: (i) a first polymer containing hydrogen bond donating groups having at least one hydrogen atom bound to a heteroatom selected from oxygen, nitrogen, and sulfur, or an anionic version of said first polymer wherein at least a portion of hydrogen atoms bound to a heteroatom is absent and replaced with at least one electron pair; (ii) a second polymer containing hydrogen bond accepting groups selected from nitrile, halogen, and ether functional groups; and (iii) at least one modifying agent selected from carbon particles, ether-containing polymers, and Lewis acid compounds; wherein, if said second polymer contains ether functional groups, then said at least one modifying agent is selected from carbon particles and Lewis acid compounds. Methods for producing the polymer blend, molded forms thereof, and articles thereof, are also described.
    Type: Application
    Filed: June 23, 2014
    Publication date: December 24, 2015
    Inventor: Amit K. Naskar
  • Publication number: 20150233021
    Abstract: Method for the preparation of a non-woven mat or paper made of carbon fibers, the method comprising carbonizing a non-woven mat or paper preform (precursor) comprised of a plurality of bonded sulfonated polyolefin fibers to produce said non-woven mat or paper made of carbon fibers. The preforms and resulting non-woven mat or paper made of carbon fiber, as well as articles and devices containing them, and methods for their use, are also described.
    Type: Application
    Filed: April 30, 2015
    Publication date: August 20, 2015
    Applicant: UT-BATTELLE, LLC
    Inventor: Amit K. Naskar
  • Patent number: 9096959
    Abstract: Method for the preparation of a non-woven mat or paper made of carbon fibers, the method comprising carbonizing a non-woven mat or paper preform (precursor) comprised of a plurality of bonded sulfonated polyolefin fibers to produce said non-woven mat or paper made of carbon fibers. The preforms and resulting non-woven mat or paper made of carbon fiber, as well as articles and devices containing them, and methods for their use, are also described.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: August 4, 2015
    Assignee: UT-BATTELLE, LLC
    Inventor: Amit K. Naskar
  • Publication number: 20150021525
    Abstract: A method of recovering carbon black includes the step of providing a carbonaceous source material containing carbon black. The carbonaceous source material is contacted with a sulfonation bath to produce a sulfonated material. The sulfonated material is pyrolyzed to produce a carbon black containing product comprising a glassy carbon matrix phase having carbon black dispersed therein. A method of making a battery electrode is also disclosed.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 22, 2015
    Inventors: Amit K. NASKAR, Mariappan Parans PARANTHAMAN, Zhonghe BI
  • Publication number: 20140265038
    Abstract: Method for the preparation of carbon fiber from fiber precursor, wherein the fiber precursor is subjected to a magnetic field of at least 3 Tesla during a carbonization process. The carbonization process is generally conducted at a temperature of at least 400° C. and less than 2200° C., wherein, in particular embodiments, the carbonization process includes a low temperature carbonization step conducted at a temperature of at least or above 400° C. or 500° C. and less than or up to 1000° C., 1100° C., or 1200° C., followed by a high temperature carbonization step conducted at a temperature of at least or above 1200° C. In particular embodiments, particularly in the case of a polyacrylonitrile (PAN) fiber precursor, the resulting carbon fiber may possess a minimum tensile strength of at least 600 ksi, a tensile modulus of at least 30 Msi, and an ultimate elongation of at least 1.5%.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: UT-BATTELLE, LLC
    Inventors: Amit K. Naskar, Soydan Ozcan, Claude C. Eberle, Mohamed Gabr Abdallah, Gail Mackiewicz Ludtka, Gerard Michael Ludtka, Felix Leonard Paulauskas, John Daniel Kennedy Rivard
  • Publication number: 20140225051
    Abstract: Disclosed herein is a flame retardant composition comprising sulfonated polyolefin and a SO2-scavenging material and/or a flame retardant material that is not a sulfonated polyolefin. Also disclosed is a flame-resistant composite comprising a host material in which is incorporated sulfonated polyolefin as a flame retardant composition. Further disclosed are methods for producing the flame retardant composition and flame-resistant composites.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 14, 2014
    Applicant: UT-Battelle, LLC
    Inventors: Amit K. Naskar, Felix L. Paulauskas, Charles David Warren, Christopher J. Janke
  • Publication number: 20140227325
    Abstract: A method of fabricating a porous carbon composition, the method comprising subjecting a precursor composition to a thermal annealing step followed by a carbonization step, the precursor composition comprising: (i) a templating component comprised of a block copolymer and (ii) a lignin component, wherein said carbonization step comprises heating the precursor composition at a carbonizing temperature for sufficient time to convert the precursor composition to a carbon material comprising a carbon structure in which is included mesopores having a diameter within a range of 2 to 50 nm, wherein said porous carbon composition possesses a mesopore volume of at least 50% with respect to a total of mesopore and micropore volumes. Also described are the resulting mesoporous carbon composition, a composite of the mesoporous carbon material and at least one pharmaceutical agent, and the administration of the carbon-pharmaceutical dosage form to a subject.
    Type: Application
    Filed: February 13, 2013
    Publication date: August 14, 2014
    Applicant: UT-BATTELLE, LLC
    Inventors: Amit K. Naskar, Dipendu Saha
  • Publication number: 20140220248
    Abstract: A method for surface treating a carbon-containing material in which carbon-containing material is reacted with decomposing ozone in a reactor (e.g., a hollow tube reactor), wherein a concentration of ozone is maintained throughout the reactor by appropriate selection of at least processing temperature, gas stream flow rate, reactor dimensions, ozone concentration entering the reactor, and position of one or more ozone inlets (ports) in the reactor, wherein the method produces a surface-oxidized carbon or carbon-containing material, preferably having a surface atomic oxygen content of at least 15%. The resulting surface-oxidized carbon material and solid composites made therefrom are also described.
    Type: Application
    Filed: April 8, 2014
    Publication date: August 7, 2014
    Applicant: UT-Battelle, LLC
    Inventors: Felix Leonard Paulauskas, Soydan Ozcan, Amit K. Naskar
  • Patent number: 8748537
    Abstract: The present invention relates to a crosslinked lignin comprising a lignin structure having methylene or ethylene linking groups therein crosslinking between phenyl ring carbon atoms, wherein said crosslinked lignin is crosslinked to an extent that it has a number-average molecular weight of at least 10,000 g/mol, is melt-processible, and has either a glass transition temperature of at least 100° C., or is substantially soluble in a polar organic solvent or aqueous alkaline solution. Thermoplastic copolymers containing the crosslinked lignin are also described. Methods for producing the crosslinked lignin and thermoplastic copolymers are also described.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: June 10, 2014
    Assignee: UT-Battelle, LLC
    Inventors: Amit K. Naskar, Tomonori Saito, Joseph M. Pickel, Frederick S. Baker, Claude Clifford Eberle, Robert E. Norris, Jonathan Richard Mielenz
  • Publication number: 20140045996
    Abstract: The present invention relates to a crosslinked lignin comprising a lignin structure having methylene or ethylene linking groups therein crosslinking between phenyl ring carbon atoms, wherein said crosslinked lignin is crosslinked to an extent that it has a number-average molecular weight of at least 10,000 g/mol, is melt-processible, and has either a glass transition temperature of at least 100° C., or is substantially soluble in a polar organic solvent or aqueous alkaline solution. Thermoplastic copolymers containing the crosslinked lignin are also described. Methods for producing the crosslinked lignin and thermoplastic copolymers are also described.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: UT-BATTELLE, LLC
    Inventors: Amit K. Naskar, Tomonori Saito, Joseph M. Pickel, Frederick S. Baker, Claude Clifford Eberle, Robert E. Norris, JR., Jonathan Richard Mielenz
  • Publication number: 20130214442
    Abstract: Method for the preparation of a non-woven mat or paper made of carbon fibers, the method comprising carbonizing a non-woven mat or paper preform (precursor) comprised of a plurality of bonded sulfonated polyolefin fibers to produce said non-woven mat or paper made of carbon fibers. The preforms and resulting non-woven mat or paper made of carbon fiber, as well as articles and devices containing them, and methods for their use, are also described.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 22, 2013
    Applicant: UT-BATTELLE, LLC
    Inventor: Amit K. Naskar
  • Publication number: 20130196155
    Abstract: A method for surface treating a carbon-containing material in which carbon-containing material is reacted with decomposing ozone in a reactor (e.g., a hollow tube reactor), wherein a concentration of ozone is maintained throughout the reactor by appropriate selection of at least processing temperature, gas stream flow rate, reactor dimensions, ozone concentration entering the reactor, and position of one or more ozone inlets (ports) in the reactor, wherein the method produces a surface-oxidized carbon or carbon-containing material, preferably having a surface atomic oxygen content of at least 15%. The resulting surface-oxidized carbon material and solid composites made therefrom are also described.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 1, 2013
    Applicant: UT-Battelle, LLC
    Inventors: Felix Leonard Paulauskas, Soydan Ozcan, Amit K. Naskar
  • Publication number: 20130116383
    Abstract: The present invention relates to a crosslinked lignin comprising a lignin structure having methylene or ethylene linking groups therein crosslinking between phenyl ring carbon atoms, wherein said crosslinked lignin is crosslinked to an extent that it has a number-average molecular weight of at least 10,000 g/mol, is melt-processible, and has either a glass transition temperature of at least 100° C., or is substantially soluble in a polar organic solvent or aqueous alkaline solution. Thermoplastic copolymers containing the crosslinked lignin are also described. Methods for producing the crosslinked lignin and thermoplastic copolymers are also described.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 9, 2013
    Applicant: UT-BATTELLE, LLC
    Inventors: Amit K. Naskar, Tomonori Saito, Joseph M. Pickel, Frederick S. Baker, Cliff Eberle, Robert E. Norris, JR., Jonathan Richard Mielenz
  • Patent number: 7695795
    Abstract: Disclosed is a process for producing lactide-based copolymers and the copolymers produced by this process. Disclosed copolymers are formed in one embodiment through the copolymerization of a lactide monomer with a fluorinated diol, for example a perfluorinated polyether monomer, oligomer or copolymer. The disclosed materials may display improved mechanical characteristics, hydrolytic characteristics, and thermal characteristics as compared to previously known lactide-based materials.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: April 13, 2010
    Inventors: Dennis W. Smith, Dahlia Haynes, Amit K. Naskar