Patents by Inventor Akhil VOHRA

Akhil VOHRA 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).

  • Butyl rubber with increased impermeability
    Patent number: 9745388
    Abstract: Surface modification methods based on a combination of plasma and chemical treatments render an unfilled butyl rubber surface highly reactive toward organosilanes, allowing formation of an organosilane self-assembled monolayer (SAM). Plasma oxidation of the butyl rubber surface followed by vapor deposition of SiCl4 produces a hydrophilic surface suitable for anchoring organosilanes. Fabrication of SAMs on this hydrophilic butyl rubber surface with n-octadecyltrichlorosilane (OTS) and trichloro(1H,1H,2H,2H-perfluorooctyl)silane (FOTS) via vapor deposition resulted in a 15% and 25% decrease in gas permeability, respectively, with no change in optical transparency of the butyl rubber.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: August 29, 2017
    Assignees: LANXESS, Inc., The University of Windsor
    Inventors: Tricia Breen Carmichael, Akhil Vohra, Lorenzo Ferrari, Natalie Suhan
  • BUTYL RUBBER WITH INCREASED IMPERMEABILITY
    Publication number: 20150329649
    Abstract: Surface modification methods based on a combination of plasma and chemical treatments render an unfilled butyl rubber surface highly reactive toward organosilanes, allowing formation of an organosilane self-assembled monolayer (SAM). Plasma oxidation of the butyl rubber surface followed by vapour deposition of SiCl4 produces a hydrophilic surface suitable for anchoring organosilanes. Fabrication of SAMs on this hydrophilic butyl rubber surface with n-octadecyltrichlorosilane (OTS) and trichloro(1H,1H,2H,2H-perfluorooctyl)silane (FOTS) via vapour deposition resulted in a 15% and 25% decrease in gas permeability, respectively, with no change in optical transparency of the butyl rubber.
    Type: Application
    Filed: December 16, 2013
    Publication date: November 19, 2015
    Applicants: LANXESS Butyl PTE. LTD, The University of Windsor
    Inventors: Tricia Breen CARMICHAEL, Akhil VOHRA, Lorenzo FERRARI, Natalie SUHAN