Patents by Inventor Leena Nebhani

Leena Nebhani 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: 10005896
    Abstract: The invention relates to rubber comprised of a reaction product of at least one diene-based elastomer, branched polyethylenimine oligomer and filler reinforcement comprised of at least one of rubber reinforcing carbon black and precipitated silica. The invention further relates to a tire with a component comprised of such rubber composition.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: June 26, 2018
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ling Du, Ralf Mruk, Leena Nebhani
  • Publication number: 20170292012
    Abstract: The invention relates to rubber comprised of a reaction product of at least one diene-based elastomer, branched polyethylenimine oligomer and filler reinforcement comprised of at least one of rubber reinforcing carbon black and precipitated silica. The invention further relates to a tire with a component comprised of such rubber composition.
    Type: Application
    Filed: April 7, 2016
    Publication date: October 12, 2017
    Inventors: Ling Du, Ralf Mruk, Leena Nebhani
  • Publication number: 20160165919
    Abstract: There is disclosed a chewing gum base comprising a solution polymerized styrene-butadiene rubber.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 16, 2016
    Inventors: Leena Nebhani, Gregory Daniel Zartman
  • Patent number: 9315654
    Abstract: The present invention relates to preparation of precipitated silica reinforced rubber compositions with silica coupling agent comprised of a siloxy trithiocarbonate, rubber compositions thereof and an article of manufacture such as a tire which contains a component comprised of such rubber composition.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: April 19, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Leena Nebhani, Tang Hong Wong
  • Patent number: 9234089
    Abstract: The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a vulcanizable rubber composition, the vulcanizable rubber composition comprising: at least one diene based elastomer; precipitated silica; and a compound of formula I where R1, R2 and R3 are independently selected alkyl or alkoxy groups containing from 1 through 8 carbon atoms provided that at least one of said groups is an ethoxy group, and alternatively provided that all three of said groups are ethoxy groups, R4 is an alkanediyl group containing from 0 through 8 carbon atoms, Si is silicon, N is nitrogen and O is oxygen.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: January 12, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Leena Nebhani
  • Patent number: 9186933
    Abstract: There is disclosed a functionalized elastomer of formula I where R1, R2 and R3 are independently C1 to C8 alkyl or C1 to C8 alkoxy, with the proviso that at least two of R1, R2 and R3 are C1 to C8 alkoxy; R4 is C1 to C8 alkanediyl, C1 to C8 arylene, C1 to C8 alkylarylene, C1 to C8 arylalkanediyl, or a covalent bond; R5 is C2 alkanediyl; Si is silicon; X is sulfur or oxygen; and P is a diene based elastomer, and n is 1 or 2.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: November 17, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Leena Nebhani
  • Publication number: 20150299437
    Abstract: The invention relates to functionalization of diene-based elastomers with end-chain or in-chain functional groups to promote good dispersion of graphene and carbon nanotubes, and enhance strong interaction between elastomers and graphene and carbon nanotubes. This invention also relates to preparation of rubber reinforced with at least one of graphene and carbon nanotubes with functionalized diene-based elastomer and tire with component thereof.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 22, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Ralf Mruk, Annette Lechtenboehmer, Klaus Unseld, Claude Ernest Felix Boes, Frederic Gerard Auguste Siffer, Ling Du, Robert Fokko Roskamp, Leena Nebhani
  • Patent number: 9090757
    Abstract: The invention relates to preparation of rubber reinforced with at least one of graphene and carbon nanotubes with specialized coupling agent and tire with component thereof.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: July 28, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ralf Mruk, Annette Lechtenboehmer, Klaus Unseld, Claude Ernest Felix Boes, Frederic Gerard Auguste Siffer, Ling Du, Robert Fokko Roskamp, Leena Nebhani
  • Patent number: 9045627
    Abstract: There is disclosed a vulcanizable rubber composition comprising: (A) a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer and a polymerization terminator of formula I where R1, R2 and R3 are independently C1 to C8 alkyl or C1 to C8 alkoxy, with the proviso that at least two of R1, R2 and R3 are C1 to C8 alkoxy; R4 is C1 to C8 alkyl; Si is silicon; S is sulfur; and Z is R5 or of formula II where R5 is alkyl, aryl, alkylaryl or arylalkyl; (B) a polymeric amine comprising a primary amine functionality; and (C) an aromatic carboxylic acid or aromatic acid anhydride.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: June 2, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ling Du, Ralf Mruk, Leena Nebhani, William Paul Francik, Tang Hong Wong
  • Patent number: 8993669
    Abstract: The present invention is directed to a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer and a polymerization terminator of formula I wherein R1, R2, R3, R4, and R5 are as defined. The invention is further directed to a rubber composition including the functionalized elastomer, and a pneumatic tire including the rubber composition.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: March 31, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Leena Nebhani, Michael Joseph Rachita
  • Patent number: 8987380
    Abstract: The present invention relates to an innovative method for controlling the viscosity of, for example, adhesives or coating formulations. The method for controlling viscosity allows very rapid thermoplastic curing of a formulation even at room temperature and a significant reduction in the viscosity at higher temperatures, thereby regaining the capacity for simple processing and allowing, for example, the originally bonded substrates to be separated from one another again with ease. A particular aspect in this context is that a plurality of cycles of thermoplastic curing and a significant reduction in the viscosity are possible with the present system.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: March 24, 2015
    Assignee: Evonik Roehm GmbH
    Inventors: Stefan Hilf, Friedrich Georg Schmidt, Andre Hennig, Simon Krause, Christopher Barner-Kowollik, Andrew John Inglis, Leena Nebhani
  • Publication number: 20150025184
    Abstract: There is disclosed a vulcanizable rubber composition comprising: (A) a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer and a polymerization terminator of formula I where R1, R2 and R3 are independently C1 to C8 alkyl or C1 to C8 alkoxy, with the proviso that at least two of R1, R2 and R3 are C1 to C8 alkoxy; R4 is C1 to C8 alkyl; Si is silicon; S is sulfur; and Z is R5 or of formula II where R5 is alkyl, aryl, alkylaryl or arylalkyl; (B) a polymeric amine comprising a primary amine functionality; and (C) an aromatic carboxylic acid or aromatic acid anhydride.
    Type: Application
    Filed: July 22, 2013
    Publication date: January 22, 2015
    Inventors: Ling Du, Ralf Mruk, Leena Nebhani, William Paul Francik, Tang Hong Wong
  • Publication number: 20150018481
    Abstract: The invention relates to preparation of rubber reinforced with at least one of graphene and carbon nanotubes with specialized coupling agent and tire with component thereof.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 15, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Ralf Mruk, Annette Lechtenboehmer, Klaus Unseld, Claude Ernest Felix Boes, Frederic Gerard Auguste Siffer, Ling Du, Robert Fokko Roskamp, Leena Nebhani
  • Patent number: 8916635
    Abstract: The present invention relates to an innovative method for the reversible crosslinking of, for example, adhesives or coating materials. The reversible crosslinking method allows very rapid crosslinking even at room temperature and undoing of the crosslinks at higher temperatures, thereby regaining the capacity for thermoplastic processing and allowing the originally bonded substrates to be separated from one another again with ease. A particular aspect in this context is that a plurality of cycles of crosslinking and undoing of the crosslinks are possible with the present system.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: December 23, 2014
    Assignee: Evonik Roehm GmbH
    Inventors: Friedrich Georg Schmidt, Simon Krause, Andre Hennig, Stefan Hilf, Christopher Barner-Kowollik, Andrew John Inglis, Leena Nebhani, Ozcan Altintas
  • Patent number: 8865829
    Abstract: There is disclosed a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer; and a polymerization terminator of formula I where R1, R2 and R3 are independently C1 to C8 alkyl or C1 to C8 alkoxy, with the proviso that at least two of R1, R2 and R3 are C1 to C8 alkoxy; R4 is C1 to C8 alkyl; Si is silicon; S is sulfur; and Z is R5 or of formula II where R5 is alkyl, aryl, alkylaryl or arylalkyl. There is further disclosed a rubber composition comprising the functionalized elastomer, and a pneumatic tire comprising the rubber composition.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: October 21, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Leena Nebhani, Michael Joseph Rachita
  • Publication number: 20140107284
    Abstract: There is disclosed a functionalized elastomer of formula I where R1, R2 and R3 are independently C1 to C8 alkyl or C1 to C8 alkoxy, with the proviso that at least two of R1, R2 and R3 are C1 to C8 alkoxy; R4 is C1 to C8 alkanediyl, C1 to C8 arylene, C1 to C8 alkylarylene, C1 to C8 arylalkanediyl, or a covalent bond; R5 is C2 alkanediyl; Si is silicon; X is sulfur or oxygen; and P is a diene based elastomer, and n is 1 or 2.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 17, 2014
    Inventor: Leena Nebhani
  • Publication number: 20130261252
    Abstract: The present invention is directed to a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer and a polymerization terminator of formula I wherein R1, R2, R3, R4, and R5 are as defined. The invention is further directed to a rubber composition including the functionalized elastomer, and a pneumatic tire including the rubber composition.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 3, 2013
    Inventors: Leena Nebhani, Michael Joseph Rachita
  • Publication number: 20130131263
    Abstract: There is disclosed a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer; and a polymerization terminator of formula I where R1, R2 and R3 are independently C1 to C8 alkyl or C1 to C8 alkoxy, with the proviso that at least two of R1, R2 and R3 are C1 to C8 alkoxy; R4 is C1 to C8 alkyl; Si is silicon; S is sulfur; and Z is R5 or of formula II where R5 is alkyl, aryl, alkylaryl or arylalkyl. There is further disclosed a rubber composition comprising the functionalized elastomer, and a pneumatic tire comprising the rubber composition.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 23, 2013
    Inventors: Leena Nebhani, Michael Joseph Rachita
  • Publication number: 20120309895
    Abstract: The present invention relates to an innovative method for the reversible crosslinking of, for example, adhesives or coating materials. The reversible crosslinking method allows very rapid crosslinking even at room temperature and undoing of the crosslinks at higher temperatures, thereby regaining the capacity for thermoplastic processing and allowing the originally bonded substrates to be separated from one another again with ease. A particular aspect in this context is that a plurality of cycles of crosslinking and undoing of the crosslinks are possible with the present system.
    Type: Application
    Filed: January 4, 2011
    Publication date: December 6, 2012
    Applicant: Evonik Roehm GmbH
    Inventors: Friedrich Georg Schmidt, Simon Krause, Andre Hennig, Stefan Hilf, Christopher Barner-Kowollik, Andrew John Inglis, Leena Nebhani, Oezcan Altintas
  • Publication number: 20120289657
    Abstract: The present invention relates to an innovative method for controlling the viscosity of, for example, adhesives or coating formulations. The method for controlling viscosity allows very rapid thermoplastic curing of a formulation even at room temperature and a significant reduction in the viscosity at higher temperatures, thereby regaining the capacity for simple processing and allowing, for example, the originally bonded substrates to be separated from one another again with ease. A particular aspect in this context is that a plurality of cycles of thermoplastic curing and a significant reduction in the viscosity are possible with the present system.
    Type: Application
    Filed: January 4, 2011
    Publication date: November 15, 2012
    Applicant: Evonik Roehm GmbH
    Inventors: Stefan Hilf, Friedrich Georg Schmidt, Andre Hennig, Simon Krause, Christopher Barner-Kowollik, Andrew John Inglis, Leena Nebhani