Patents by Inventor Soumyajit Roy

Soumyajit 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).

  • Method of producing packaging having fat barrier properties
    Patent number: 8747955
    Abstract: A description is given of a method of producing packaging, the packaging surface being coated with a polyelectrolyte complex, and the polyelectrolyte complex being composed of at least one first polymer and at least one second polymer, the first polymer being an anionic polymer and the second polymer being a cationic polymer. The packaging is distinguished by good fat barrier properties.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: June 10, 2014
    Assignee: BASF SE
    Inventors: Carmen-Elena Cimpeanu, Thomas Breiner, Dieter Urban, Hermann Seyffer, Volker Schaedler, Robert Feuerhake, Soumyajit Roy, Michel Awkal
  • USE OF POLYELECTROLYTE COMPLEXES AS PLASTICIZER BARRIERS
    Publication number: 20120148836
    Abstract: The use of polyelectrolyte complexes as plasticizer barrier is described, in particular those formed from anionic polymer and from cationic polymer, as also are plasticized substrates and production of the same, where the plasticized substrates have been coated with at least one layer which comprises at least one polyelectrolyte complex.
    Type: Application
    Filed: August 12, 2010
    Publication date: June 14, 2012
    Applicant: BASF SE
    Inventors: Carmen-Elena Cimpeanu, Thomas Breiner, Dieter Urban, Karl-Heinz Schumacher, Axel Weiss, Axel Meyer, Soumyajit Roy
  • METHOD OF PRODUCING PACKAGING HAVING FAT BARRIER PROPERTIES
    Publication number: 20110143156
    Abstract: A description is given of a method of producing packaging, the packaging surface being coated with a polyelectrolyte complex, and the polyelectrolyte complex being composed of at least one first polymer and at least one second polymer, the first polymer being an anionic polymer and the second polymer being a cationic polymer. The packaging is distinguished by good fat barrier properties.
    Type: Application
    Filed: August 13, 2009
    Publication date: June 16, 2011
    Applicant: BASF SE
    Inventors: Carmen-Elena Cimpeanu, Thomas Breiner, Dieter Urban, Hermann Seyffer, Volker Schaedler, Robert Feuerhake, Soumyajit Roy, Michel Awkal