Patents by Inventor Gourav UPADHYAY

Gourav UPADHYAY 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).

  • Polyamides modified with (per)fluoropolyether segments
    Patent number: 10377857
    Abstract: The present invention relates to thermoplastic polyamides (PA) comprising recurring units derived from a PFPE dicarboxylic acid (PFPA-DA) or a PFPE diamine (PFPE-NN) in a defined weight amount with respect to other units derived from the other monomers used in the course of polymerization. Polyamides (PA) are endowed with improved surface properties, chemical resistance and reduced brittleness and do not require the addiction of impact modifiers.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: August 13, 2019
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Claudio Adolfo Pietro Tonelli, Ivan Wlassics, Giuseppe Marchionni, Sanjay Gurbasappa Charati, Ritu Ahuja, Gourav Upadhyay
  • POLYAMIDES MODIFIED WITH (PER)FLUOROPOLYETHER SEGMENTS
    Publication number: 20160326318
    Abstract: The present invention relates to thermoplastic polyamides (PA) comprising recurring units derived from a PFPE dicarboxylic acid (PFPA-DA) or a PFPE diamine (PFPE-NN) in a defined weight amount with respect to other units derived from the other monomers used in the course of polymerization. Polyamides (PA) are endowed with improved surface properties, chemical resistance and reduced brittleness and do not require the addiction of impact modifiers.
    Type: Application
    Filed: December 19, 2014
    Publication date: November 10, 2016
    Inventors: Claudio Adolfo Pietro TONELLI, Ivan WLASSICS, Giuseppe MARCHIONNI, Sanjay, Gurbasappa CHARATI, Ritu AHUJA, Gourav UPADHYAY