Patents by Inventor Aruna M. Velamakanni

Aruna M. Velamakanni 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).

  • Durable elastomeric compositions employing cyclododecasulfur as a vulcanizing agent
    Patent number: 11021581
    Abstract: Vulcanizable elastomeric formulation are disclosed. The formulations comprise at least one elastomer; a vulcanizing agent comprising cyclododecasulfur; and a prevulcanization inhibitor, present in an amount, for example, from about 0.01 phr to about 10 phr. The formulations, when vulcanized, provide articles that exhibit improved durability.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: June 1, 2021
    Assignee: Eastman Chemical Company
    Inventors: Scott Donald Barnicki, Frederick Ignatz-Hoover, Robert Thomas Hembre, Andrew Neil Smith, Henk Kreulen, Aruna M. Velamakanni, Chenchy Lin, Ronald H. Arthur
  • DURABLE ELASTOMERIC COMPOSITIONS EMPLOYING CYCLODODECASULFUR AS A VULCANIZING AGENT
    Publication number: 20190211161
    Abstract: Vulcanizable elastomeric formulation are disclosed. The formulations comprise at least one elastomer; a vulcanizing agent comprising cyclododecasulfur; and a prevulcanization inhibitor, present in an amount, for example, from about 0.01 phr to about 10 phr.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 11, 2019
    Applicant: Eastman Chemical Company
    Inventors: Scott Donald Barnicki, Frederick Ignatz-Hoover, Robert Thomas Hembre, Andrew Neil Smith, Henk Kreulen, Aruna M. Velamakanni, Chenchy Lin, Ronald H. Arthur
  • Processes for forming vulcanizable elastomeric formulations and vulcanized elastomeric articles
    Patent number: 10280281
    Abstract: Processes for forming a vulcanizable elastomeric formulation are disclosed. The processes include the steps of mixing an elastomer with a vulcanizing agent to form a vulcanizable elastomeric formulation that includes the vulcanizing agent dispersed in the elastomeric compound, wherein the vulcanizing agent includes a cyclododecasulfur compound. A process for forming a vulcanized elastomeric article is also described.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: May 7, 2019
    Assignee: Eastman Chemical Company
    Inventors: Scott Donald Barnicki, Frederick Ignatz-Hoover, Robert Thomas Hembre, Andrew Neil Smith, Henk Kreulen, Aruna M. Velamakanni
  • PROCESSES FOR FORMING VULCANIZABLE ELASTOMERIC FORMULATIONS AND VULCANIZED ELASTOMERIC ARTICLES
    Publication number: 20190002665
    Abstract: Processes for forming a vulcanizable elastomeric formulation are disclosed. The processes include the steps of mixing an elastomer with a vulcanizing agent to form a vulcanizable elastomeric formulation that includes the vulcanizing agent dispersed in the elastomeric compound, wherein the vulcanizing agent includes a cyclododecasulfur compound. A process for forming a vulcanized elastomeric article is also described.
    Type: Application
    Filed: September 6, 2018
    Publication date: January 3, 2019
    Applicant: Eastman Chemical Company
    Inventors: Scott Donald Barnicki, Frederick Ignatz-Hoover, Robert Thomas Hembre, Andrew Neil Smith, Henk Kreulen, Aruna M. Velamakanni
  • PROCESSES FOR FORMING VULCANIZABLE ELASTOMERIC FORMULATIONS AND VULCANIZED ELASTOMERIC ARTICLES
    Publication number: 20170321033
    Abstract: Processes for forming a vulcanizable elastomeric formulation are disclosed. The processes include the steps of mixing an elastomer with a vulcanizing agent to form a vulcanizable elastomeric formulation that includes the vulcanizing agent dispersed in the elastomeric compound, wherein the vulcanizing agent includes a cyclododecasulfur compound. A process for forming a vulcanized elastomeric article is also described.
    Type: Application
    Filed: July 25, 2017
    Publication date: November 9, 2017
    Applicant: Eastman Chemical Company
    Inventors: Scott Donald Barnicki, Frederick Ignatz-Hoover, Robert Thomas Hembre, Andrew Neil Smith, Henk Kreulen, Aruna M. Velamakanni