Patents by Inventor Sushanta Dhar Roy

Sushanta Dhar Roy 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).

  • Polyolefin Compositions Suitable for Films
    Publication number: 20220017730
    Abstract: The present disclosure provides polyolefin compositions and films and method for producing such films. The polyolefin composition contains about 40 wt % to about 95 wt % of a BOCD polyethylene and about 10 wt % to about 60 wt % of a polypropylene, by weight of the polyolefin composition. The polyolefin composition has a 1% secant flexural modulus MID of greater than 250 MPa and a 1% secant flexural modulus TD of greater than 300 MPa, as determined for a layer of the polyolefin composition having a thickness of about 50 ?m and a Dart Impact (Method A) of greater than 15 g/?m and an Elmendorf tear MI) of greater than 7 g/?m, as determined for a film containing the polyolefin composition and having a thickness of about 90 ?m.
    Type: Application
    Filed: November 11, 2019
    Publication date: January 20, 2022
    Inventors: Sushanta DHAR ROY, Bradley A. KRAMER, Ying ZOU, Jasper HOLSBEEK, Stefan B. OHLSSON, Maciej M. PASNIEWSKI, Mosha H. ZHAO
  • Cast Films and Processes for Making the Same
    Publication number: 20200108539
    Abstract: Cast films made from metallocene-catalyzed polyethylene polymers, optionally, with other polymers, and processes for making the same, are disclosed.
    Type: Application
    Filed: March 23, 2018
    Publication date: April 9, 2020
    Inventors: Michael G. Williams, Sushanta Dhar Roy
  • Compound for purging residual polyamides from an extruder
    Patent number: 8492473
    Abstract: A purging compound for purging an extruder of polyamides or other polar thermoplastic resins for transitioning to the extrusion of a non-polar thermoplastic resin, includes a non-polar base polymer compounded with an ethylene-methacrylate copolymer, up to 15% of a mineral, and about 1% of a suitable antioxidant.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: July 23, 2013
    Assignee: Ingenia Polymers Corp.
    Inventors: Sushanta Dhar Roy, Viraj Triokekar, Salvatore D'Uva, Ed Hindy
  • Compound for purging residual polyamides from an extruder
    Publication number: 20120245269
    Abstract: A purging compound for purging an extruder of polyamides or other polar thermoplastic resins for transitioning to the extrusion of a non-polar thermoplastic resin, includes a non-polar base polymer compounded with an ethylene-methacrylate copolymer, up to 15% of a mineral, and about 1% of a suitable antioxidant.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 27, 2012
    Applicant: Ingenia Polymers Corp.
    Inventors: Sushanta Dhar Roy, Viraj Triokekar, Salvatore D'Uva, Ed Hindy